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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #ff6b6b;
    --text-dark: #2c3e50;
    --text-medium: #555;
    --text-light: #666;
    --text-muted: #999;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.08);
    --shadow-md: 0 8px 25px rgba(0,0,0,0.12);
    --shadow-lg: 0 15px 40px rgba(102, 126, 234, 0.2);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --spacing-xs: 10px;
    --spacing-sm: 15px;
    --spacing-md: 20px;
    --spacing-lg: 30px;
    --spacing-xl: 40px;
    --spacing-xxl: 60px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 15px;
    --radius-xl: 20px;
    --radius-round: 50px;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.8;
    color: var(--text-dark);
    overflow-x: hidden;
    background: var(--bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header */
header {
    background: var(--gradient-primary);
    color: white;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 25px;
}

/* Logo区域 */
.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 8px 15px;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    text-decoration: none;
    color: inherit;
}

.logo-wrapper:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(3px);
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: rotate(45deg);
    transition: all 0.6s ease;
    opacity: 0;
}

.logo-wrapper:hover .logo-icon {
    transform: rotate(360deg) scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.logo-wrapper:hover .logo-icon::before {
    opacity: 1;
    animation: shine 0.6s ease;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.logo-text {
    font-size: clamp(24px, 4vw, 28px);
    font-weight: 800;
    letter-spacing: 2px;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.25);
    position: relative;
    transition: all 0.3s ease;
}

.logo-text::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 3px;
    background: white;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

.logo-wrapper:hover .logo-text {
    letter-spacing: 3px;
}

.logo-wrapper:hover .logo-text::after {
    width: 100%;
}

/* 导航区域 */
nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

nav ul {
    display: flex;
    list-style: none;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    margin: 0;
    padding: 0;
}

nav li {
    margin: 0;
}

nav a {
    color: rgba(255, 255, 255, 0.95);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: clamp(14px, 2.2vw, 15px);
    white-space: nowrap;
    padding: 10px 16px;
    border-radius: 25px;
    position: relative;
    overflow: hidden;
    font-weight: 500;
    letter-spacing: 0.5px;
    display: block;
}

nav a::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
    z-index: 0;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 50%;
    height: 2px;
    background: white;
    border-radius: 1px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

nav a:hover::before {
    width: 100px;
    height: 100px;
}

nav a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

nav a:hover {
    background: rgba(255,255,255,0.15);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

nav a:active {
    transform: translateY(0);
}

/* 当前激活的导航项 */
nav a.active {
    background: rgba(255,255,255,0.2);
    color: white;
    font-weight: 600;
}

nav a.active::after {
    transform: translateX(-50%) scaleX(1);
}

/* Hero Section */
.hero {
    background: var(--gradient-primary);
    padding: clamp(80px, 12vw, 120px) 0 clamp(60px, 10vw, 100px);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.hero .container {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero h1 {
    font-size: clamp(2.2rem, 6vw, 3.8rem);
    margin-bottom: var(--spacing-xl);
    color: white;
    line-height: 1.3;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.2);
    animation: fadeInUp 1s ease;
    font-weight: 700;
    letter-spacing: 1px;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    margin-bottom: var(--spacing-lg);
    color: rgba(255,255,255,0.95);
    line-height: 1.8;
    animation: fadeInUp 1s ease 0.2s both;
    font-weight: 500;
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.15rem);
    margin-bottom: var(--spacing-xl);
    color: rgba(255,255,255,0.9);
    line-height: 2;
    animation: fadeInUp 1s ease 0.4s both;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.download-btn {
    background: var(--gradient-accent);
    color: white;
    padding: clamp(16px, 2.5vw, 20px) clamp(35px, 5vw, 45px);
    border: none;
    border-radius: var(--radius-round);
    font-size: clamp(1.1rem, 2.5vw, 1.25rem);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    margin-top: var(--spacing-md);
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.4);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 1s ease 0.6s both;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

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

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 107, 107, 0.5);
}

/* Features Section */
.features {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
    position: relative;
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 5vw, 2.8rem);
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    line-height: 1.4;
    position: relative;
    display: inline-block;
    width: 100%;
    font-weight: 700;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: var(--spacing-md) auto 0;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    font-size: clamp(1rem, 2.5vw, 1.15rem);
    color: var(--text-medium);
    line-height: 1.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: white;
    padding: var(--spacing-xxl) var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: clamp(3rem, 6vw, 4rem);
    margin-bottom: var(--spacing-lg);
    display: inline-block;
    animation: bounce 2s infinite;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.feature-card h3 {
    font-size: clamp(1.4rem, 3vw, 1.6rem);
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    font-weight: 600;
}

.feature-card p {
    font-size: clamp(0.95rem, 2vw, 1rem);
    line-height: 1.9;
    color: var(--text-light);
}

/* Benefits Section */
.benefits {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    position: relative;
}

.benefit-list {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.benefit-item {
    background: white;
    padding: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border-left: 5px solid var(--primary-color);
    position: relative;
}

.benefit-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.05;
    transition: width 0.4s ease;
}

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

.benefit-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

.benefit-item h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: clamp(1.2rem, 2.5vw, 1.3rem);
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.benefit-item p,
.benefit-item ul {
    font-size: clamp(0.95rem, 2vw, 1rem);
    line-height: 2;
    color: var(--text-medium);
    position: relative;
    z-index: 1;
}

.benefit-item ul {
    margin-top: var(--spacing-sm);
}

.benefit-item ul li {
    margin: var(--spacing-sm) 0;
    position: relative;
    padding-left: 30px;
}

.benefit-item ul li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* Product Showcase */
.product-showcase {
    padding: var(--spacing-xxl) 0;
    background: white;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
    gap: var(--spacing-xl);
}

.product-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-align: center;
    padding: var(--spacing-xl);
    transition: all 0.4s ease;
    position: relative;
}

.product-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover::after {
    opacity: 0.1;
}

.product-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.product-card h4 {
    font-size: clamp(1.2rem, 2.5vw, 1.3rem);
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.product-card p {
    font-size: clamp(0.9rem, 2vw, 1rem);
    color: var(--text-light);
    position: relative;
    z-index: 1;
    line-height: 1.7;
}

/* CTA Section */
.cta {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-xxl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
    opacity: 0.3;
}

.cta .container {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.cta h2 {
    font-size: clamp(2rem, 5vw, 2.8rem);
    margin-bottom: var(--spacing-xl);
    line-height: 1.4;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    font-weight: 700;
}

.cta > p {
    font-size: clamp(1.05rem, 2.5vw, 1.15rem);
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    line-height: 1.9;
}

.cta > .container > div {
    background: white;
    color: var(--text-dark);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    display: inline-block;
    max-width: 100%;
    width: auto;
    box-shadow: var(--shadow-xl);
    margin: var(--spacing-xl) 0;
    transition: transform 0.3s ease;
}

.cta > .container > div:hover {
    transform: scale(1.02);
}

.cta > .container > div h3 {
    font-size: clamp(1.5rem, 3vw, 1.7rem);
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    font-weight: 600;
}

.cta > .container > div ul {
    font-size: clamp(1rem, 2vw, 1.05rem);
    line-height: 2.2;
    text-align: left;
    list-style: none;
}

.cta > .container > div ul li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid #f0f0f0;
    position: relative;
    padding-left: 30px;
}

.cta > .container > div ul li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.cta > .container > div ul li:last-child {
    border-bottom: none;
}

.cta p:last-of-type {
    font-size: clamp(1.1rem, 2.5vw, 1.25rem);
    margin-top: var(--spacing-xl);
    opacity: 0.95;
    line-height: 1.9;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    position: relative;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    margin-bottom: var(--spacing-lg);
    color: #ecf0f1;
    font-size: clamp(1.2rem, 2.5vw, 1.3rem);
    font-weight: 600;
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

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

.footer-section li {
    margin: var(--spacing-sm) 0;
}

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: clamp(0.95rem, 2vw, 1rem);
    display: inline-block;
    position: relative;
    line-height: 1.8;
}

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

.footer-section a:hover {
    color: white;
    transform: translateX(5px);
}

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

.contact-info {
    margin-top: var(--spacing-md);
}

.contact-info div {
    margin: var(--spacing-sm) 0;
    font-size: clamp(0.95rem, 2vw, 1rem);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: transform 0.3s ease;
    line-height: 1.8;
}

.contact-info div:hover {
    transform: translateX(5px);
}

.copyright {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #95a5a6;
}

.copyright p {
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    margin: var(--spacing-sm) 0;
    line-height: 1.9;
}

.copyright p:last-child {
    margin-top: var(--spacing-md);
    color: var(--primary-color);
    font-weight: 600;
}

/* 响应式设计 - 平板设备 */
@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }
    
    .header-content {
        gap: 20px;
    }
    
    .logo-icon {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    nav a {
        padding: 8px 14px;
        font-size: 14px;
    }
}

/* 响应式设计 - 手机设备 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
        padding: 10px 0;
    }
    
    .logo-wrapper {
        padding: 6px 12px;
    }
    
    .logo-icon {
        width: 38px;
        height: 38px;
        font-size: 18px;
    }
    
    .logo-text {
        font-size: 22px;
    }
    
    nav {
        justify-content: center;
        width: 100%;
    }
    
    nav ul {
        justify-content: center;
        gap: 8px;
    }
    
    nav a {
        padding: 8px 14px;
        font-size: 14px;
    }
    
    .hero {
        padding: 60px 0 50px;
    }
    
    .feature-grid,
    .showcase-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-section h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .contact-info {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .benefit-item:hover {
        transform: translateX(5px);
    }
}

/* 响应式设计 - 小屏手机 */
@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .header-content {
        gap: 12px;
    }
    
    .logo-wrapper {
        padding: 5px 10px;
        gap: 8px;
    }
    
    .logo-icon {
        width: 35px;
        height: 35px;
        font-size: 16px;
    }
    
    .logo-text {
        font-size: 20px;
        letter-spacing: 1px;
    }
    
    nav ul {
        gap: 6px;
    }
    
    nav a {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .benefit-item {
        padding: var(--spacing-md);
    }
    
    .cta > .container > div {
        width: 100%;
    }
    
    .feature-card,
    .product-card {
        padding: var(--spacing-lg);
    }
}

/* 添加平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 优化链接悬停效果 */
a {
    transition: all 0.3s ease;
}

/* 防止图片溢出 */
img {
    max-width: 100%;
    height: auto;
}

/* 确保文本不会溢出容器 */
p, h1, h2, h3, h4, h5, h6 {
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* 添加滚动条美化 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

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

::-moz-selection {
    background: var(--primary-color);
    color: white;
}

/* 加载动画 */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* 徽章样式 */
.badge {
    display: inline-block;
    padding: 5px 12px;
    background: var(--gradient-accent);
    color: white;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-left: 10px;
    animation: pulse 2s infinite;
}

/* 提示框样式 */
.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 12px;
    background: var(--text-dark);
    color: white;
    border-radius: 6px;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    margin-bottom: 8px;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}