/* ===== 全局样式 ===== */
:root {
    --primary-color: #DDA0DD; /* 藕荷色 - 更柔和的主色调 */
    --secondary-color: #8FB996FF; /* 清新绿 - 更明亮的辅助色 */
    --accent-color: #F4E4BCFF; /* 柔和黄 - 更协调的强调色 */
    --light-bg: #F9F6F1FF; /* 纯净米白 - 更清爽的背景 */
    --dark-text: #3A3A3A; /* 深灰文字 - 提高可读性 */
    --light-text: #666666; /* 中灰文字 - 更清晰的层级 */
    --border-color: #EDE8E1FF; /* 边框色 - 增加细微分隔 */
    --hover-color: #C77DFF; /* 深藕荷色 - 悬停色 */
    --success-color: #7FB069FF; /* 成功色 - 用于正面反馈 */
    --card-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    --card-shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12); /* 增强的卡片阴影 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); /* 更自然的过渡曲线 */
}

/* 隐藏左侧冗余导航列表 */
body > ul,
.left-nav,
.sidebar-nav,
#left-sidebar,
#sidebar,
ul[class*="nav"],
ul[class*="menu"],
div[class*="nav"],
div[class*="sidebar"],
div[class*="menu"] {
    display: none !important;
    position: absolute !important;
    left: -9999px !important;
    top: -9999px !important;
    width: 0 !important;
    height: 0 !important;
    overflow: hidden !important;
    margin: 0 !important;
    padding: 0 !important;
    z-index: -1 !important;
}

/* 确保顶部导航栏正常显示 */
header ul.nav-links,
header ul.mobile-nav-links {
    display: flex !important;
    position: relative !important;
    left: auto !important;
    top: auto !important;
    width: auto !important;
    height: auto !important;
    overflow: visible !important;
    margin: 0 !important;
    padding: 0 !important;
    z-index: 1000 !important;
}

/* 确保主内容区域正常显示 */
body {
    position: relative;
    z-index: 1;
}

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

body {
    font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--dark-text);
    background-color: #ffffff;
    line-height: 1.6;
    scroll-behavior: smooth;
    /* 添加页面加载动画 */
    animation: pageLoad 0.8s ease-out;
}

/* 页面加载动画 */
@keyframes pageLoad {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 元素进入视口动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
    position: relative;
}

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em; /* 微调字间距，增强标题美感 */
}

h1 {
    font-size: 3.8rem;
    color: var(--primary-color);
    font-weight: 800; /* 增强主标题视觉冲击力 */
    margin-bottom: 1.8rem;
}

h2 {
    font-size: 2.6rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    font-weight: 700;
}

h2:after {
    content: '';
    position: absolute;
    bottom: -18px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
    border-radius: 2px;
}

h3 {
    font-size: 1.9rem;
    margin-bottom: 1.5rem;
    color: var(--dark-text);
    font-weight: 700;
}

h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--dark-text);
    font-weight: 600;
}

p {
    margin-bottom: 1.8rem;
    font-size: 1.15rem;
    color: var(--light-text);
    line-height: 1.7;
    letter-spacing: 0.01em;
}

/* 增强文本层次的辅助类 */
.text-lead {
    font-size: 1.3rem;
    line-height: 1.8;
    color: var(--dark-text);
    font-weight: 400;
}

.text-small {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--light-text);
}

/* 强调文本 */
.text-emphasize {
    color: var(--primary-color);
    font-weight: 600;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(217, 180, 143, 0.2);
}

.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: all 0.6s ease;
}

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

.btn:hover {
    background-color: var(--hover-color);
    transform: translateY(-4px);
    box-shadow: 0 12px 25px rgba(217, 180, 143, 0.3);
}

.btn:active {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(217, 180, 143, 0.25);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    box-shadow: none;
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 12px 25px rgba(217, 180, 143, 0.3);
}

.btn-secondary:before {
    background: linear-gradient(90deg, transparent, rgba(217, 180, 143, 0.2), transparent);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--light-text);
    max-width: 800px;
    margin: 0 auto 3rem;
}

/* ===== 导航栏 ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    padding: 20px 0;
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo-img {
    width: 32px;
    height: 32px;
    margin-right: 10px;
    object-fit: contain;
    vertical-align: middle;
}

.footer-logo .logo-img {
    width: 28px;
    height: 28px;
    margin-right: 8px;
    vertical-align: middle;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 40px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-text);
    font-weight: 500;
    font-size: 1.1rem;
    transition: var(--transition);
    position: relative;
}

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

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

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark-text);
    cursor: pointer;
}

/* ===== 首页 ===== */
#home {
    padding-top: 180px;
    padding-bottom: 150px;
    background: linear-gradient(135deg, #f9f7f2 0%, #f0ebe3 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
    font-size: 3rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.hero-tagline {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 2.5rem;
    font-weight: 600;
}

.hero-description {
    font-size: 1.3rem;
    line-height: 1.8;
    margin-bottom: 3rem;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 4rem;
}

.quick-access {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 80px;
}

.access-card {
    background-color: white;
    border-radius: 24px;
    padding: 45px 35px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.access-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.5s ease;
}

.access-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--card-shadow-hover);
}

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

.access-card:active {
    transform: translateY(-8px);
}

.access-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.access-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.access-card p {
    font-size: 1rem;
}

/* ===== 产品理念 ===== */
#philosophy {
    background-color: var(--light-bg);
}

.lotus-meaning {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 80px;
}

.meaning-card {
    background-color: white;
    border-radius: 24px;
    padding: 45px 35px;
    text-align: center;
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.meaning-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.meaning-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-shadow-hover);
}

.meaning-card:active {
    transform: translateY(-6px);
}

.meaning-icon {
    font-size: 3.5rem;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.meaning-card h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.meaning-quote {
    font-style: italic;
    font-size: 1.1rem;
    color: var(--light-text);
    margin-bottom: 20px;
    padding: 0 10px;
}

.design-principles {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.principle-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
}

.principle-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background-color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    font-size: 1.5rem;
    color: var(--dark-text);
}

/* ===== 设计亮点 ===== */
.highlights-nav {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.highlight-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #ddd;
    cursor: pointer;
    transition: var(--transition);
}

.highlight-dot.active {
    background-color: var(--primary-color);
    transform: scale(1.3);
}

.highlight-section {
    margin-bottom: 100px;
    opacity: 0.3;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.highlight-section.active {
    opacity: 1;
    transform: translateY(0);
}

.highlight-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.highlight-text h3 {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.highlight-features {
    list-style: none;
    margin-top: 25px;
}

.highlight-features li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.highlight-features i {
    color: var(--secondary-color);
    margin-right: 10px;
    margin-top: 5px;
}

.highlight-visual {
    background-color: var(--light-bg);
    border-radius: 20px;
    padding: 30px;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--card-shadow);
}

/* ===== 核心功能 ===== */
#features {
    background-color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: white;
    border-radius: 24px;
    padding: 45px 35px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
}

.feature-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(217, 180, 143, 0.1), transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.feature-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--primary-color);
}

.feature-card:hover:before {
    opacity: 1;
}

.feature-card:active {
    transform: translateY(-8px);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.user-journey {
    margin-top: 80px;
    background-color: var(--light-bg);
    border-radius: 20px;
    padding: 50px;
}

.journey-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-top: 50px;
}

.journey-steps:before {
    content: '';
    position: absolute;
    top: 30px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    z-index: 1;
}

.journey-step {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 20%;
}

.step-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: white;
    border: 3px solid var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-weight: bold;
    font-size: 1.2rem;
    color: var(--primary-color);
}

/* ===== 可行性分析 ===== */
#feasibility {
    background-color: var(--light-bg);
}

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

.feasibility-card {
    background-color: white;
    border-radius: 24px;
    padding: 45px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.feasibility-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
}

.feasibility-card h3 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--secondary-color);
}

.tech-architecture {
    margin-top: 60px;
    background-color: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--card-shadow);
}

.architecture-diagram {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

.layer {
    text-align: center;
    margin: 0 20px;
}

.layer-box {
    width: 150px;
    height: 80px;
    background-color: var(--light-bg);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    font-weight: 600;
}

/* ===== 伦理关怀 ===== */
#ethics {
    background-color: white;
}

.ethics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.ethics-card {
    background-color: white;
    border-radius: 24px;
    padding: 45px 35px;
    transition: var(--transition);
    border-left: 5px solid var(--primary-color);
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    border-left-width: 5px;
}

.ethics-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-shadow-hover);
}

.ethics-card:active {
    transform: translateY(-6px);
}

.ethics-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.privacy-visual {
    margin-top: 60px;
    background-color: var(--light-bg);
    border-radius: 20px;
    padding: 50px;
    display: flex;
    justify-content: center;
}

.privacy-layers {
    display: flex;
    align-items: center;
}

.layer-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background-color: white;
    border: 3px solid var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 20px;
    font-weight: 600;
    text-align: center;
}

/* ===== 联系与合作 ===== */
#contact {
    background-color: var(--light-bg);
    text-align: center;
}

.team-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 80px;
}

.team-card {
    background-color: white;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: var(--card-shadow);
}

.team-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background-color: var(--light-bg);
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary-color);
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 50px;
}

.contact-method {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    box-shadow: var(--card-shadow);
}

/* ===== 页脚 ===== */
footer {
    background-color: var(--dark-text);
    color: white;
    padding: 60px 0 30px;
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 700;
    color: white;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: #ddd;
    text-decoration: none;
    transition: var(--transition);
}

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

.copyright {
    color: #aaa;
    font-size: 0.9rem;
    padding-top: 30px;
    border-top: 1px solid #444;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
    h1 {
        font-size: 3.2rem;
    }
    
    h2 {
        font-size: 2.4rem;
    }
    
    .hero-content h1 {
        font-size: 3.5rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 100%;
    }
}

@media (max-width: 992px) {
    h1 {
        font-size: 2.8rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
    
    h3 {
        font-size: 1.7rem;
    }
    
    p {
        font-size: 1.1rem;
        line-height: 1.6;
    }
    
    .hero-content h1 {
        font-size: 3rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 100%;
    }
    
    .hero-tagline {
        font-size: 1.6rem;
    }
    
    .hero-description {
        font-size: 1.2rem;
    }
    
    .quick-access,
    .lotus-meaning,
    .features-grid,
    .feasibility-grid,
    .ethics-grid,
    .team-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .highlight-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .design-principles {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .mobile-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        height: 100vh;
        background-color: white;
        z-index: 1001;
        padding: 100px 40px 40px;
        transition: var(--transition);
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
    }
    
    .mobile-nav.active {
        right: 0;
    }
    
    .mobile-nav-links {
        list-style: none;
    }
    
    .mobile-nav-links li {
        margin-bottom: 25px;
    }
    
    .mobile-nav-links a {
        text-decoration: none;
        color: var(--dark-text);
        font-size: 1.3rem;
        font-weight: 500;
        display: block;
        padding: 10px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .close-menu {
        position: absolute;
        top: 30px;
        right: 30px;
        background: none;
        border: none;
        font-size: 1.5rem;
        color: var(--dark-text);
        cursor: pointer;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
    }
    
    .close-menu:hover {
        background-color: var(--light-bg);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.3rem;
    }
    
    h2 {
        font-size: 1.9rem;
    }
    
    h3 {
        font-size: 1.6rem;
    }
    
    h4 {
        font-size: 1.25rem;
    }
    
    p {
        font-size: 1.05rem;
        line-height: 1.6;
        margin-bottom: 1.5rem;
    }
    
    section {
        padding: 70px 0;
    }
    
    .container {
        width: 95%;
        padding: 0 15px;
    }
    
    .hero-content h1 {
        font-size: 2.4rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 100%;
    }
    
    .hero-tagline {
        font-size: 1.4rem;
        margin-bottom: 2rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .quick-access,
    .lotus-meaning,
    .features-grid,
    .feasibility-grid,
    .ethics-grid,
    .team-section,
    .highlight-content {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .access-card,
    .meaning-card,
    .feature-card,
    .feasibility-card,
    .ethics-card,
    .team-card {
        padding: 35px 25px;
        border-radius: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
        max-width: 320px;
        text-align: center;
        padding: 14px 28px;
        font-size: 1.05rem;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 30px;
    }
    
    .contact-method {
        text-align: center;
    }
    
    .contact-icon {
        width: 70px;
        height: 70px;
        font-size: 1.8rem;
    }
    
    /* 移动端菜单优化 */
    .mobile-nav {
        width: 90%;
        padding: 80px 30px 30px;
    }
    
    .mobile-nav-links a {
        font-size: 1.2rem;
        padding: 15px 0;
    }
    
    /* 设计亮点导航隐藏 */
    .highlights-nav {
        display: none;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.7rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 100%;
    }
    
    .hero-tagline {
        font-size: 1.3rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 1rem;
    }
    
    /* 卡片内边距进一步调整 */
    .access-card,
    .meaning-card,
    .feature-card,
    .feasibility-card,
    .ethics-card,
    .team-card {
        padding: 30px 20px;
    }
}