/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    min-height: 100vh;
}

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

/* 导航栏 */
.navbar {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 2px solid #00ff88;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #00ff88;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: #e0e0e0;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: #00ff88;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #00ff88;
    transition: width 0.3s ease;
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #00ff88;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页横幅 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #000000 100%);
}

.hero-content {
    text-align: center;
    z-index: 2;
    max-width: 600px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #00ff88, #00cc6a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { text-shadow: 0 0 20px rgba(0, 255, 136, 0.5); }
    to { text-shadow: 0 0 30px rgba(0, 255, 136, 0.8); }
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: #b0b0b0;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(45deg, #00ff88, #00cc6a);
    color: #000;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 255, 136, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.5);
}

.hero-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-icon {
    position: absolute;
    font-size: 2rem;
    color: rgba(0, 255, 136, 0.3);
    animation: float 6s ease-in-out infinite;
}

.floating-icon:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-icon:nth-child(2) {
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.floating-icon:nth-child(3) {
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* 工具部分 */
.tools-section {
    padding: 100px 0;
    background: #111111;
}

.tools-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #00ff88;
}

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

.tool-category {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 30px;
    border: 1px solid rgba(0, 255, 136, 0.2);
    transition: all 0.3s ease;
}

.tool-category:hover {
    transform: translateY(-5px);
    border-color: #00ff88;
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.2);
}

.category-header {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.category-header i {
    font-size: 2rem;
    color: #00ff88;
    margin-right: 15px;
}

.category-header h3 {
    font-size: 1.5rem;
    color: #e0e0e0;
}

.tool-list {
    display: grid;
    gap: 15px;
}

.tool-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.tool-item:hover {
    background: rgba(0, 255, 136, 0.1);
    border-color: #00ff88;
    transform: translateX(5px);
}

.tool-item i {
    font-size: 1.2rem;
    color: #00ff88;
    margin-right: 15px;
    width: 20px;
}

.tool-item span {
    color: #e0e0e0;
    font-weight: 500;
}

/* 工具面板 */
.tool-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: 500px;
    height: 100vh;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-left: 2px solid #00ff88;
    z-index: 1001;
    transition: right 0.3s ease;
    overflow-y: auto;
}

.tool-panel.active {
    right: 0;
}

.tool-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid rgba(0, 255, 136, 0.3);
}

.tool-panel-header h3 {
    color: #00ff88;
    font-size: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    color: #00ff88;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.close-btn:hover {
    background: rgba(0, 255, 136, 0.2);
}

.tool-panel-content {
    padding: 20px;
}

/* 关于部分 */
.about-section {
    padding: 100px 0;
    background: #0a0a0a;
}

.about-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #00ff88;
}

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

.about-text p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #b0b0b0;
}

.about-text ul {
    list-style: none;
}

.about-text li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    color: #e0e0e0;
}

.about-text li i {
    color: #00ff88;
    margin-right: 15px;
}

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

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 15px;
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: #00ff88;
    margin-bottom: 10px;
}

.stat-label {
    color: #b0b0b0;
    font-size: 1.1rem;
}

/* 联系部分 */
.contact-section {
    padding: 100px 0;
    background: #111111;
}

.contact-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #00ff88;
}

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

.contact-info {
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.2rem;
    color: #e0e0e0;
}

.contact-item i {
    color: #00ff88;
    margin-right: 15px;
    font-size: 1.3rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 50%;
    color: #00ff88;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #00ff88;
    color: #000;
    transform: translateY(-3px);
}

/* 页脚 */
.footer {
    background: #000000;
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid rgba(0, 255, 136, 0.3);
}

.footer p {
    color: #b0b0b0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(0, 0, 0, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 30px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .tool-panel {
        width: 100%;
        right: -100%;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-category {
        padding: 20px;
    }
}

/* 工具特定样式 */
.tool-input {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 8px;
    color: #e0e0e0;
    font-size: 1rem;
    margin-bottom: 15px;
    resize: vertical;
}

.tool-input:focus {
    outline: none;
    border-color: #00ff88;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

.tool-button {
    background: linear-gradient(45deg, #00ff88, #00cc6a);
    color: #000;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 5px;
}

.tool-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 255, 136, 0.4);
}

.tool-output {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 8px;
    padding: 15px;
    margin-top: 15px;
    color: #e0e0e0;
    font-family: 'Courier New', monospace;
    white-space: pre-wrap;
    word-break: break-all;
}