:root {
    --primary-color: #1a1a1a;
    --secondary-color: #666666;
    --accent-color: #000000;
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --text-light: #666666;
    --text-secondary: #999999;
    --border-color: #e5e5e5;
    --border-color-light: #f0f0f0;
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.8s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    counter-reset: step-counter;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none;
}

.cursor,
.cursor-follower {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
}

.cursor {
    width: 6px;
    height: 6px;
    background-color: #fff;
    transform: translate(-50%, -50%);
    transition: transform 0.08s ease, width 0.2s ease, height 0.2s ease;
}

.cursor-follower {
    width: 40px;
    height: 40px;
    border: 1px solid #fff;
    transform: translate(-50%, -50%);
    transition: transform 0.15s ease, width 0.3s ease, height 0.3s ease, opacity 0.3s ease;
}

.cursor.hover {
    transform: translate(-50%, -50%) scale(0);
}

.cursor-follower.hover {
    width: 60px;
    height: 60px;
    opacity: 0.6;
}

.cursor-follower.click {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0.8;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    transition: all var(--transition-medium);
    padding: 24px 0;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 16px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.logo-box {
    width: 24px;
    height: 24px;
    border: 1px solid var(--primary-color);
    transition: all var(--transition-fast);
}

.logo:hover .logo-box {
    background-color: var(--primary-color);
}

.logo-text {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: 48px;
}

.nav-link {
    position: relative;
    text-decoration: none;
    color: var(--text-color);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--primary-color);
    transition: width var(--transition-fast);
}

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

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

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

.bar {
    width: 20px;
    height: 1px;
    background-color: var(--primary-color);
    transition: all var(--transition-fast);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, rgba(229, 229, 229, 0.15) 1px, transparent 1px),
        linear-gradient(rgba(229, 229, 229, 0.15) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(255, 255, 255, 0.8) 100%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-bg-line {
    position: absolute;
    background-color: var(--border-color);
    pointer-events: none;
}

.hero-bg-line-1 {
    width: 1px;
    height: 100%;
    left: 8%;
    top: 0;
    transform: none;
    opacity: 0.5;
}

.hero-bg-line-2 {
    width: 1px;
    height: 100%;
    right: 8%;
    top: 0;
    opacity: 0.5;
}

.hero-bg-line-3 {
    width: 100%;
    height: 1px;
    left: 0;
    bottom: 15%;
    opacity: 0.5;
}

.hero-bg-line-4 {
    width: 100%;
    height: 1px;
    left: 0;
    top: 25%;
    opacity: 0.5;
}

.hero-subtitle {
    font-size: 12px;
    letter-spacing: 12px;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: 32px;
    opacity: 0;
    animation: fadeInUp 1s ease-out forwards;
    font-weight: 400;
}

.hero-title-cn {
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(100px, 18vw, 180px);
    font-weight: 700;
    letter-spacing: 30px;
    margin-bottom: 16px;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.2s forwards;
    line-height: 0.9;
}

.hero-title-en {
    font-family: 'Inter', sans-serif;
    font-size: clamp(40px, 8vw, 80px);
    font-weight: 300;
    letter-spacing: 20px;
    text-transform: uppercase;
    margin-bottom: 32px;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.4s forwards;
    color: var(--text-light);
    letter-spacing: 0.3em;
}

.hero-line {
    width: 80px;
    height: 1px;
    background-color: var(--primary-color);
    margin: 0 auto 24px;
    opacity: 0;
    animation: fadeIn 1s ease-out 0.6s forwards;
}

.scroll-indicator {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.8s forwards;
}

.scroll-indicator span {
    font-size: 11px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--text-light);
}

.scroll-arrow {
    width: 16px;
    height: 24px;
    border: 1px solid var(--text-light);
    border-radius: 8px;
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: var(--text-light);
    border-radius: 2px;
    animation: scrollBounce 2s ease-in-out infinite;
}

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

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

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

.section {
    padding: 120px 0;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 60px;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 80px;
}

.section-number {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 2px;
    color: var(--text-light);
}

.section-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 32px;
    font-weight: 600;
    letter-spacing: 8px;
}

.section-divider {
    flex: 1;
    height: 1px;
    background-color: var(--border-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text p {
    font-size: 16px;
    line-height: 2;
    color: var(--text-light);
    margin-bottom: 24px;
    text-align: justify;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-box {
    width: 280px;
    height: 280px;
    border: 1px solid var(--primary-color);
    position: relative;
}

.about-box-inner {
    position: absolute;
    width: 140px;
    height: 140px;
    background-color: var(--primary-color);
    bottom: -20px;
    right: -20px;
}

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

.philosophy-desc {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto 60px;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.philosophy-card {
    padding: 40px;
    text-align: center;
    transition: transform var(--transition-medium);
}

.philosophy-card:hover {
    transform: translateY(-8px);
}

.card-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 24px;
    color: var(--primary-color);
    transition: color var(--transition-fast);
}

.philosophy-card:hover .card-icon {
    color: var(--text-light);
}

.philosophy-card h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 4px;
    margin-bottom: 16px;
}

.philosophy-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

.focus-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.focus-card {
    position: relative;
    padding: 40px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-medium);
}

.focus-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.focus-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--primary-color);
    opacity: 0;
    transition: opacity var(--transition-medium);
    pointer-events: none;
}

.focus-card:hover::before {
    opacity: 0.02;
}

.focus-card-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 24px;
    color: var(--primary-color);
}

.focus-card-icon svg {
    width: 100%;
    height: 100%;
}

.focus-card-number {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-light);
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.focus-card h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 4px;
    margin-bottom: 12px;
}

.focus-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

.articles-section {
    padding: 100px 0;
}

.articles-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
}

.articles-title {
    display: flex;
    align-items: baseline;
    gap: 20px;
}

.articles-title .number {
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.articles-title .text {
    font-family: 'Noto Serif SC', serif;
    font-size: 32px;
    font-weight: 600;
}

.articles-link {
    font-size: 14px;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

/* 文章列表页面容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto 80px;
    padding: 120px 60px 0;
}

.page-intro {
    margin-bottom: 48px;
}

.page-title {
    display: flex;
    align-items: baseline;
    gap: 16px;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-title .number {
    color: var(--border-color);
    font-size: 24px;
    font-weight: 400;
}

.page-title .text {
    color: var(--primary-color);
}

.page-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
}

.article-item {
    padding: 32px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.article-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.article-item-header {
    margin-bottom: 20px;
}

.article-tag {
    display: inline-block;
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 500;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.article-item-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    line-height: 1.4;
    color: var(--text-color);
}

.article-item-excerpt {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 24px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
}

.article-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.article-date {
    font-size: 13px;
    color: var(--text-light);
    font-weight: 400;
}

.article-arrow {
    font-size: 14px;
    color: var(--primary-color);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.article-item:hover .article-arrow {
    transform: translateX(6px);
}

.footer {
    padding: 30px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-logo .logo-box {
    width: 20px;
    height: 20px;
}

.footer-logo span {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 2px;
}

.footer-text {
    font-size: 12px;
    color: var(--text-light);
    letter-spacing: 1px;
}

.footer-copyright {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 2px;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .navbar-container {
        padding: 0 24px;
    }

    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero::before {
        background-size: 40px 40px;
    }

    .hero-title-cn {
        font-size: clamp(60px, 15vw, 100px);
        letter-spacing: 15px;
    }

    .hero-title-en {
        font-size: clamp(24px, 6vw, 48px);
        letter-spacing: 0.2em;
    }

    .hero-subtitle {
        letter-spacing: 6px;
        font-size: 10px;
    }

    .section {
        padding: 80px 0;
    }

    .section-container {
        padding: 0 24px;
    }

    .section-header {
        flex-wrap: wrap;
        margin-bottom: 48px;
    }

    .section-title {
        font-size: 24px;
        letter-spacing: 4px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-box {
        width: 200px;
        height: 200px;
    }

    .about-box-inner {
        width: 100px;
        height: 100px;
    }

    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .cursor,
    .cursor-follower {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero::before {
        background-size: 40px 40px;
    }

    .hero-bg-line {
        display: none;
    }

    .hero-title-cn {
        font-size: clamp(40px, 10vw, 60px);
        letter-spacing: 10px;
    }

    .hero-title-en {
        font-size: clamp(18px, 5vw, 36px);
        letter-spacing: 0.15em;
    }

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

    .focus-card {
        padding: 24px;
    }
}

.article {
    max-width: 800px;
    margin: 0 auto;
    padding: 120px 40px 80px;
}

.article-header {
    text-align: center;
    margin-bottom: 60px;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 24px;
}

.article-category {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 2px;
    color: var(--primary-color);
    padding: 6px 16px;
    border: 1px solid var(--primary-color);
}

.article-date {
    font-size: 12px;
    color: var(--text-light);
    letter-spacing: 1px;
    padding-top: 6px;
}

.article-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 36px;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.article-subtitle {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 40px;
}

.article-author {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border: 1px solid var(--border-color);
}

.author-name {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
}

.author-title {
    font-size: 12px;
    color: var(--text-light);
}

.article-content {
    margin-bottom: 60px;
}

.article-section {
    margin-bottom: 48px;
}

.article-section h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.article-section p {
    font-size: 16px;
    line-height: 2;
    color: var(--text-light);
    margin-bottom: 16px;
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.list-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-medium);
}

.list-item:hover {
    border-color: var(--primary-color);
}

.list-number {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    min-width: 40px;
}

.list-content h3 {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 8px;
}

.list-content p {
    font-size: 14px;
    margin-bottom: 0;
}

.article-quote {
    margin: 32px 0;
    padding: 32px;
    background-color: #fafafa;
    border-left: 4px solid var(--primary-color);
}

.article-quote p {
    font-family: 'Noto Serif SC', serif;
    font-size: 18px;
    font-style: italic;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.article-quote cite {
    font-size: 12px;
    color: var(--text-light);
}

.article-section ol {
    padding-left: 24px;
}

.article-section li {
    font-size: 16px;
    line-height: 2;
    color: var(--text-light);
    margin-bottom: 12px;
}

/* 文章内容优化 */
.article-content {
    max-width: 700px;
    margin: 0 auto;
}

.article-section {
    margin-bottom: 56px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-color-light);
}

.article-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.article-section h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 24px;
    padding-left: 16px;
    border-left: 4px solid var(--primary-color);
    letter-spacing: 2px;
}

.article-section h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 16px;
    margin-top: 32px;
}

.article-section h3:first-of-type {
    margin-top: 0;
}

.article-section p {
    font-size: 16px;
    line-height: 2.2;
    color: var(--text-light);
    margin-bottom: 16px;
    text-align: justify;
    text-indent: 0;
    position: relative;
}

.article-section strong {
    color: var(--text-color);
    font-weight: 600;
}

/* 列表样式优化 */
.article-section ul {
    padding-left: 32px;
    margin-bottom: 20px;
    list-style-type: none;
}

.article-section ol {
    padding-left: 40px;
    margin-bottom: 20px;
}

.article-section ul li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 16px;
    line-height: 1.8;
}

.article-section ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 6px;
    height: 6px;
    background-color: var(--primary-color);
    /* 方形直角 */
}

.article-section ol li {
    position: relative;
    padding-left: 16px;
    margin-bottom: 16px;
    line-height: 1.8;
    counter-increment: step-counter;
}

.article-section ol li::before {
    content: counter(step-counter);
    position: absolute;
    left: -28px;
    top: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    font-size: 12px;
    font-weight: 600;
    /* 方形直角 */
}

/* 引用样式优化 */
.article-quote {
    margin: 40px -20px;
    padding: 28px 32px;
    background-color: #fafafa;
    border-left: 4px solid var(--primary-color);
    position: relative;
}

.article-quote::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 24px;
    height: 24px;
    border-top: 2px solid var(--primary-color);
    border-right: 2px solid var(--primary-color);
}

.article-quote::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 24px;
    border-bottom: 2px solid var(--primary-color);
    border-left: 2px solid var(--primary-color);
}

.article-quote p {
    font-family: 'Noto Serif SC', serif;
    font-size: 18px;
    font-style: italic;
    color: var(--primary-color);
    margin-bottom: 0;
    padding-left: 0;
    text-indent: 0;
    line-height: 1.8;
}

/* 代码块样式优化 */
.article-formula {
    background-color: var(--primary-color);
    padding: 24px;
    margin: 20px 0;
    border-radius: 4px;
}

.article-formula code {
    font-family: 'Inter', monospace;
    font-size: 16px;
    color: white;
    font-weight: 500;
    letter-spacing: 1px;
}

/* 练习区域样式 */
.article-exercise {
    background-color: #fafafa;
    border: 2px solid var(--border-color);
    padding: 24px;
    margin: 20px 0;
    position: relative;
}

.article-exercise::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    width: 16px;
    height: 16px;
    border-top: 2px solid var(--primary-color);
    border-left: 2px solid var(--primary-color);
}

.article-exercise::after {
    content: '';
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 16px;
    height: 16px;
    border-bottom: 2px solid var(--primary-color);
    border-right: 2px solid var(--primary-color);
}

.article-exercise p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 8px;
    text-indent: 0;
    padding-left: 0 !important;
}

.article-exercise p::before {
    display: none;
}

/* 表格样式优化 */
.article-table {
    overflow-x: auto;
    margin: 20px 0;
}

.article-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.article-table th,
.article-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color-light);
}

.article-table th {
    background-color: #fafafa;
    font-weight: 600;
    color: var(--text-color);
    border-bottom: 2px solid var(--border-color);
}

.article-table tr:hover {
    background-color: #fafafa;
}

.article-footer {
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.tag {
    font-size: 12px;
    padding: 8px 16px;
    background-color: #fafafa;
    color: var(--text-light);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.tag:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.article-nav {
    display: flex;
    gap: 40px;
}

.nav-prev,
.nav-next {
    flex: 1;
    padding: 24px;
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-color);
    transition: all var(--transition-medium);
}

.nav-prev:hover,
.nav-next:hover {
    border-color: var(--primary-color);
}

.nav-label {
    display: block;
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.nav-title {
    display: block;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .article {
        padding: 80px 20px 60px;
    }
    
    .article-title {
        font-size: 28px;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 12px;
    }
    
    .article-nav {
        flex-direction: column;
        gap: 16px;
    }
    
    .list-item {
        flex-direction: column;
        gap: 12px;
    }
}

.hero-home {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 0 20px;
}

.hero-home::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
}

.brand-icon {
    width: 80px;
    height: 80px;
    color: var(--primary-color);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.hero-title-cn {
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(60px, 12vw, 120px);
    font-weight: 700;
    letter-spacing: 30px;
    margin-left: 15px;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.2s forwards;
}

.hero-title-en {
    font-family: 'Inter', sans-serif;
    font-size: clamp(24px, 5vw, 48px);
    font-weight: 300;
    letter-spacing: 0.3em;
    color: var(--text-light);
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.4s forwards;
}

.hero-tagline {
    font-family: 'Noto Serif SC', serif;
    font-size: 18px;
    letter-spacing: 8px;
    margin-bottom: 16px;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.6s forwards;
}

.hero-desc {
    font-size: 14px;
    color: var(--text-light);
    max-width: 400px;
    margin: 0 auto;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.8s forwards;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    opacity: 0.6;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--text-light);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background-color: var(--border-color);
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.article-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    padding: 24px;
    transition: all var(--transition-medium);
    cursor: pointer;
}

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

.article-card-visual {
    margin-bottom: 20px;
}

.article-icon {
    width: 48px;
    height: 48px;
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.article-card:hover .article-icon {
    color: var(--primary-color);
}

.article-card-content {
    flex: 1;
}

.article-card .article-category {
    font-size: 11px;
    letter-spacing: 1px;
    color: var(--text-light);
    margin-bottom: 12px;
    display: inline-block;
}

.article-card-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.article-card-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.article-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.article-date {
    font-size: 12px;
    color: var(--text-light);
}

.article-read {
    font-size: 12px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .container {
        margin: 0 auto 60px;
        padding: 100px 24px 0;
    }

    .page-title {
        font-size: 32px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .article-item {
        padding: 24px;
    }
    
    .article-item-title {
        font-size: 20px;
    }
    
    .article-item-excerpt {
        font-size: 14px;
    }
}

/* 核心原则卡片样式 */
.principles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.principle-card {
    background-color: #fafafa;
    border: 1px solid var(--border-color);
    padding: 32px;
    position: relative;
}

.principle-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--primary-color);
}

.principle-number {
    display: inline-block;
    width: 32px;
    height: 32px;
    background-color: var(--primary-color);
    color: white;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.principle-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.principle-card p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 16px;
}

.principle-method {
    background-color: white;
    padding: 16px;
    border-left: 3px solid var(--primary-color);
}

.principle-method h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.principle-method ul {
    padding-left: 20px;
}

.principle-method li {
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 8px;
}

/* 步骤时间线样式 */
.steps-timeline {
    margin-top: 32px;
}

.step-card {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
}

.step-card:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background-color: var(--primary-color);
    color: white;
    font-size: 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-content h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.step-content p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 12px;
}

/* 案例研究样式 */
.case-study {
    background-color: #fafafa;
    padding: 32px;
    margin-top: 32px;
}

.case-study h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.case-background {
    margin-bottom: 24px;
}

.case-background ul {
    padding-left: 20px;
}

.case-background li {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 8px;
}

.case-study h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.case-step {
    margin-bottom: 24px;
}

.case-quote {
    background-color: white;
    border-left: 3px solid var(--primary-color);
    padding: 16px 20px;
    margin: 12px 0;
    font-style: italic;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-light);
}

.case-result {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.comparison-table {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* 常见误区样式 */
.mistakes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 32px;
}

.mistake-card {
    background-color: #fff5f5;
    border: 1px solid #ffe5e5;
    padding: 24px;
    position: relative;
}

.mistake-icon {
    display: inline-block;
    width: 36px;
    height: 36px;
    background-color: #ff4d4f;
    color: white;
    font-size: 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.mistake-card h3 {
    font-size: 16px;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.mistake-card p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-light);
    margin-bottom: 8px;
}

/* 总结框样式 */
.summary-box {
    background-color: #f6ffed;
    border: 1px solid #b7eb8f;
    padding: 24px;
    margin: 20px 0;
}

.summary-box h4 {
    font-size: 16px;
    font-weight: 600;
    color: #52c41a;
    margin-bottom: 16px;
}

.summary-box ol {
    padding-left: 24px;
}

.summary-box li {
    font-size: 15px;
    line-height: 2;
    color: var(--text-dark);
    margin-bottom: 8px;
}

/* 移动端响应式 */
@media (max-width: 768px) {
    .principles-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .principle-card {
        padding: 20px;
    }
    
    .step-card {
        flex-direction: column;
        gap: 16px;
    }
    
    .step-number {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .case-study {
        padding: 20px;
    }
    
    .mistakes-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .mistake-card {
        padding: 20px;
    }
}