/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #e8f4fd;
    background: linear-gradient(135deg, #0a0e1a 0%, #1a1f2e 50%, #0f1419 100%);
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 234, 255, 0.1);
    transition: all 0.3s ease;
}

.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;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: #00eaff;
}

.nav-logo i {
    font-size: 28px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-menu a {
    color: #e8f4fd;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00eaff, #0099cc);
    transition: width 0.3s ease;
}

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

.nav-buttons {
    display: flex;
    gap: 15px;
}

.btn-login {
    padding: 8px 20px;
    background: transparent;
    border: 1px solid rgba(0, 234, 255, 0.3);
    color: #00eaff;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-login:hover {
    background: rgba(0, 234, 255, 0.1);
    border-color: #00eaff;
}

.btn-signup {
    padding: 8px 20px;
    background: linear-gradient(90deg, #00eaff, #0099cc);
    border: none;
    color: #0a0e1a;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-signup:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 234, 255, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #00eaff;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* 主页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 70px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 50% 20%, rgba(0, 234, 255, 0.1) 0%, transparent 70%);
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #00eaff, transparent),
        radial-gradient(2px 2px at 40px 70px, #0099cc, transparent),
        radial-gradient(1px 1px at 90px 40px, #00eaff, transparent),
        radial-gradient(1px 1px at 130px 80px, #0099cc, transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    animation: float 20s ease-in-out infinite;
}

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

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(45deg, #00eaff, #0099cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #b0c4de;
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.btn-primary {
    padding: 15px 30px;
    background: linear-gradient(90deg, #00eaff, #0099cc);
    border: none;
    color: #0a0e1a;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 234, 255, 0.4);
}

.btn-secondary {
    padding: 15px 30px;
    background: rgba(0, 234, 255, 0.1);
    border: 1px solid rgba(0, 234, 255, 0.3);
    color: #00eaff;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-secondary:hover {
    background: rgba(0, 234, 255, 0.2);
    border-color: #00eaff;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #00eaff;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: #b0c4de;
}

/* 浮动卡片 */
@keyframes float-card {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.floating-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.2);
    border-radius: 20px;
    padding: 25px;
    margin: 20px;
    animation: float-card 6s ease-in-out infinite;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.floating-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 234, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

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

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    position: relative;
}

.card-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #0a0e1a;
    animation: avatarPulse 2s ease-in-out infinite;
}

@keyframes avatarPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.card-info h4 {
    color: #e8f4fd;
    margin: 0;
    font-size: 1.1rem;
}

.card-info p {
    color: #b0c4de;
    margin: 0;
    font-size: 0.9rem;
}

.card-status {
    margin-left: auto;
}

.status-badge {
    background: linear-gradient(45deg, #00ff88, #00cc6a);
    color: #0a0e1a;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    animation: statusBlink 2s ease-in-out infinite;
}

@keyframes statusBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.card-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.document-flow {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.flow-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.flow-step.active {
    border-color: rgba(0, 234, 255, 0.3);
    background: rgba(0, 234, 255, 0.05);
    animation: stepPulse 2s ease-in-out infinite;
}

@keyframes stepPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 234, 255, 0.3); }
    50% { box-shadow: 0 0 0 10px rgba(0, 234, 255, 0.1); }
}

.step-icon {
    width: 35px;
    height: 35px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-size: 14px;
}

.step-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.step-title {
    color: #e8f4fd;
    font-size: 14px;
    font-weight: 500;
}

.step-time {
    color: #b0c4de;
    font-size: 12px;
}

.signature-area {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 15px;
}

.signature-preview {
    position: relative;
    margin-bottom: 10px;
}

.signature-line {
    border-bottom: 2px solid rgba(0, 234, 255, 0.3);
    margin-bottom: 10px;
}

.signature-animation {
    height: 30px;
    background: linear-gradient(90deg, transparent, #00eaff, transparent);
    background-size: 200% 100%;
    animation: signatureDraw 3s ease-in-out infinite;
    border-radius: 4px;
    position: relative;
}

.signature-animation::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 234, 255, 0.5), transparent);
    animation: signatureGlow 2s ease-in-out infinite;
}

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

.signature-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.signature-label {
    color: #e8f4fd;
    font-size: 14px;
    font-weight: 500;
}

.signature-time {
    color: #b0c4de;
    font-size: 12px;
}

.document-preview {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
}

.document-preview:hover {
    border-color: rgba(0, 234, 255, 0.3);
    transform: translateY(-2px);
}

.doc-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-size: 18px;
}

.doc-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.doc-name {
    color: #e8f4fd;
    font-size: 14px;
    font-weight: 500;
}

.doc-size {
    color: #b0c4de;
    font-size: 12px;
}

.doc-actions {
    display: flex;
    gap: 8px;
}

.btn-preview, .btn-download {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #b0c4de;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-preview:hover, .btn-download:hover {
    background: rgba(0, 234, 255, 0.2);
    border-color: rgba(0, 234, 255, 0.5);
    color: #00eaff;
    transform: scale(1.1);
}

.contract-progress {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 15px;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.progress-info span:first-child {
    color: #e8f4fd;
    font-size: 14px;
    font-weight: 500;
}

.progress-percent {
    color: #00eaff;
    font-size: 14px;
    font-weight: 600;
}

.progress-bar {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    height: 8px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    background: linear-gradient(90deg, #00eaff, #0099cc);
    height: 100%;
    border-radius: 10px;
    position: relative;
    animation: progressGlow 2s ease-in-out infinite;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progressShine 2s ease-in-out infinite;
}

@keyframes progressGlow {
    0%, 100% { box-shadow: 0 0 5px rgba(0, 234, 255, 0.3); }
    50% { box-shadow: 0 0 15px rgba(0, 234, 255, 0.6); }
}

@keyframes progressShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* 浮动元素 */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.float-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 234, 255, 0.2);
    border-radius: 12px;
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #e8f4fd;
    font-size: 12px;
    font-weight: 500;
    animation: floatElement 4s ease-in-out infinite;
    pointer-events: auto;
    cursor: pointer;
    transition: all 0.3s ease;
}

.float-element:hover {
    background: rgba(0, 234, 255, 0.1);
    transform: scale(1.05);
}

.float-element i {
    color: #00eaff;
    font-size: 14px;
}

.element-1 {
    top: 20px;
    right: -60px;
    animation-delay: 0s;
}

.element-2 {
    top: 50%;
    right: -80px;
    animation-delay: 1s;
}

.element-3 {
    bottom: 20px;
    right: -70px;
    animation-delay: 2s;
}

@keyframes floatElement {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(2deg); }
    50% { transform: translateY(-5px) rotate(-1deg); }
    75% { transform: translateY(-15px) rotate(1deg); }
}

/* 移动端优化 */
@media (max-width: 768px) {
    .floating-card {
        margin: 10px;
        padding: 20px;
    }
    
    .card-header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .card-status {
        margin-left: 0;
    }
    
    .flow-step {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
    
    .step-text {
        align-items: center;
    }
    
    .document-preview {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .doc-actions {
        justify-content: center;
    }
    
    .float-element {
        display: none;
    }
    
    .video-modal-content {
        max-width: 95%;
        margin: 10px;
    }
    
    .template-selector {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .video-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .btn-play, .btn-reset {
        width: 100%;
        justify-content: center;
    }
}

.template-field input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 8px 12px;
    color: #e8f4fd;
    font-size: 0.9rem;
}

/* 签名演示 */
.signature-demo {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.2);
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.signature-pad {
    border: 2px dashed rgba(0, 234, 255, 0.3);
    border-radius: 12px;
    padding: 20px;
    background: rgba(0, 234, 255, 0.05);
    margin-bottom: 15px;
}

.signature-controls {
    display: flex;
    gap: 10px;
}

.btn-clear, .btn-save {
    flex: 1;
    padding: 8px 16px;
    border: 1px solid rgba(0, 234, 255, 0.3);
    background: rgba(0, 234, 255, 0.1);
    color: #00eaff;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-clear:hover, .btn-save:hover {
    background: rgba(0, 234, 255, 0.2);
    border-color: #00eaff;
}

/* 协作演示 */
.collaboration-demo {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.2);
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.user-list {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.user-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.user-item.active {
    border-color: #00eaff;
    background: rgba(0, 234, 255, 0.1);
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-weight: 600;
    font-size: 14px;
}

.user-item span {
    font-size: 0.8rem;
    color: #b0c4de;
}

.chat-window {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-message {
    display: flex;
    align-items: center;
    gap: 10px;
}

.message-time {
    font-size: 0.8rem;
    color: #00eaff;
    min-width: 40px;
}

.message-text {
    color: #b0c4de;
    font-size: 0.9rem;
}

/* 价格方案 */
.pricing {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.2);
}

/* 服务特色 */
.services {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.1);
}

/* 功能展示 */
.features {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.2);
}

/* 通用section样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    font-size: 1.2rem;
    color: #b0c4de;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 服务网格 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.service-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.1);
    border-radius: 20px;
    padding: 40px 30px;
    transition: all 0.3s ease;
    position: relative;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 234, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 234, 255, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    box-shadow: 0 10px 30px rgba(0, 234, 255, 0.2);
}

.service-icon i {
    color: #fff;
    font-size: 2rem;
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #e8f4fd;
    margin-bottom: 15px;
}

.service-card p {
    color: #b0c4de;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.service-card ul {
    list-style: none;
    padding: 0;
}

.service-card li {
    color: #b0c4de;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.service-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #00eaff;
    font-weight: bold;
}

/* 功能展示 */
.features-content {
    display: flex;
    flex-direction: column;
    gap: 80px;
    margin-top: 60px;
}

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

.feature-item.reverse {
    direction: rtl;
}

.feature-item.reverse > * {
    direction: ltr;
}

.feature-text h3 {
    font-size: 2rem;
    font-weight: 600;
    color: #e8f4fd;
    margin-bottom: 20px;
}

.feature-text p {
    color: #b0c4de;
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 25px;
}

.feature-text ul {
    list-style: none;
    padding: 0;
}

.feature-text li {
    color: #b0c4de;
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.feature-text li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #00eaff;
    font-weight: bold;
    font-size: 1.1rem;
}

/* 功能演示区域 */
.template-preview,
.signature-demo,
.collaboration-demo {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 234, 255, 0.2);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
}

.template-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: #00eaff;
    font-weight: 600;
}

.template-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.template-field {
    display: flex;
    align-items: center;
    gap: 10px;
}

.template-field span {
    color: #b0c4de;
    min-width: 80px;
}

.template-field input {
    flex: 1;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(0, 234, 255, 0.3);
    border-radius: 8px;
    padding: 8px 12px;
    color: #e8f4fd;
}

.template-field input::placeholder {
    color: #b0c4de;
}

/* 签名演示 */
.signature-pad {
    border: 2px solid rgba(0, 234, 255, 0.3);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 15px;
}

.signature-controls {
    display: flex;
    gap: 10px;
}

.btn-clear, .btn-save {
    padding: 8px 16px;
    background: rgba(0, 234, 255, 0.1);
    border: 1px solid rgba(0, 234, 255, 0.3);
    color: #00eaff;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-clear:hover, .btn-save:hover {
    background: rgba(0, 234, 255, 0.2);
    border-color: #00eaff;
}

/* 协作演示 */
.collaboration-demo {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.user-list {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.user-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(0, 234, 255, 0.1);
    transition: all 0.3s ease;
}

.user-item.active {
    border-color: #00eaff;
    background: rgba(0, 234, 255, 0.1);
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-weight: 600;
    font-size: 14px;
}

.user-item span {
    font-size: 0.8rem;
    color: #b0c4de;
}

.chat-window {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-message {
    display: flex;
    align-items: center;
    gap: 10px;
}

.message-time {
    font-size: 0.8rem;
    color: #00eaff;
    min-width: 40px;
}

.message-text {
    color: #b0c4de;
    font-size: 0.9rem;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.1);
}

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

.about-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-mission {
    font-size: 1.3rem;
    color: #00eaff;
    margin-bottom: 20px;
    font-weight: 500;
}

.about-description {
    font-size: 1.1rem;
    color: #b0c4de;
    margin-bottom: 40px;
    line-height: 1.6;
}

.about-stats {
    display: flex;
    gap: 40px;
}

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

.about-stat .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #00eaff;
    margin-bottom: 8px;
}

.about-stat .stat-label {
    font-size: 1rem;
    color: #b0c4de;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.team-photo {
    width: 300px;
    height: 300px;
    border-radius: 20px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-placeholder {
    text-align: center;
    color: #b0c4de;
}

.photo-placeholder i {
    font-size: 4rem;
    color: #00eaff;
    margin-bottom: 15px;
    display: block;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.2);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.1);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    border-color: rgba(0, 234, 255, 0.3);
    transform: translateY(-5px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #0a0e1a;
}

.contact-details h4 {
    color: #e8f4fd;
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.contact-details p {
    color: #b0c4de;
    font-size: 1rem;
}

.contact-form {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: #e8f4fd;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00eaff;
    background: rgba(0, 234, 255, 0.05);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #b0c4de;
}

.btn-submit {
    width: 100%;
    padding: 15px;
    background: linear-gradient(90deg, #00eaff, #0099cc);
    border: none;
    color: #0a0e1a;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 234, 255, 0.3);
}

/* 页脚 */
.footer {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(0, 234, 255, 0.1);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: #00eaff;
    margin-bottom: 15px;
}

.footer-section p {
    color: #b0c4de;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(0, 234, 255, 0.1);
    border: 1px solid rgba(0, 234, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #00eaff;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #00eaff;
    color: #0a0e1a;
    transform: translateY(-3px);
}

.footer-section h4 {
    color: #e8f4fd;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #b0c4de;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #00eaff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: #b0c4de;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: #b0c4de;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #00eaff;
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 导航栏移动端优化 */
    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(10, 14, 26, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px 0;
        border-top: 1px solid rgba(0, 234, 255, 0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 10px 0;
    }
    
    .nav-menu a {
        padding: 10px 20px;
        display: block;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-buttons {
        display: none;
    }
    
    /* 主页横幅移动端优化 */
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2.2rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.5;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: 30px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    /* 浮动卡片移动端优化 */
    .floating-card {
        margin: 0 10px;
        padding: 20px;
    }
    
    .card-header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .card-status {
        margin-left: 0;
    }
    
    .flow-step {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
    
    .step-text {
        align-items: center;
    }
    
    .document-preview {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .doc-actions {
        justify-content: center;
    }
    
    .float-element {
        display: none;
    }
    
    .video-modal-content {
        max-width: 95%;
        margin: 10px;
    }
    
    .template-selector {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .video-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .btn-play, .btn-reset {
        width: 100%;
        justify-content: center;
    }
    
    /* 服务部分移动端优化 */
    .services {
        padding: 60px 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .section-header p {
        font-size: 1rem;
        padding: 0 20px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .service-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .service-card h3 {
        font-size: 1.3rem;
    }
    
    .service-card p {
        font-size: 0.95rem;
    }
    
    /* 功能展示移动端优化 */
    .features {
        padding: 60px 0;
    }
    
    .features-content {
        gap: 50px;
    }
    
    .feature-item {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .feature-item.reverse {
        direction: ltr;
    }
    
    .feature-text h3 {
        font-size: 1.5rem;
    }
    
    .feature-text p {
        font-size: 1rem;
    }
    
    .template-preview,
    .signature-demo,
    .collaboration-demo {
        padding: 20px;
    }
    
    .template-field {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .template-field input {
        width: 100%;
    }
    
    .user-list {
        flex-direction: column;
        gap: 10px;
    }
    
    .user-item {
        flex-direction: row;
        justify-content: center;
    }
    
    /* 价格方案移动端优化 */
    .pricing {
        padding: 60px 0;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    
    .pricing-card {
        padding: 30px 20px;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .amount {
        font-size: 2.5rem;
    }
    
    /* 关于我们移动端优化 */
    .about {
        padding: 60px 0;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .about-text h2 {
        font-size: 2rem;
    }
    
    .about-mission {
        font-size: 1.1rem;
    }
    
    .about-description {
        font-size: 1rem;
    }
    
    .about-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: 30px;
    }
    
    .team-photo {
        width: 250px;
        height: 250px;
        margin: 0 auto;
    }
    
    /* 联系我们移动端优化 */
    .contact {
        padding: 60px 0;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .form-group input,
    .form-group textarea {
        font-size: 16px; /* 防止iOS缩放 */
    }
    
    /* 页脚移动端优化 */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    /* 侧边栏移动端优化 */
    .sidebar-float {
        right: 15px;
        bottom: 80px;
        gap: 12px;
    }
    
    .float-item {
        width: 45px;
        height: 45px;
    }
    
    .float-icon {
        font-size: 18px;
    }
    
    .float-tooltip {
        right: 55px;
        font-size: 11px;
        padding: 6px 10px;
    }
    
    /* 弹窗移动端优化 */
    .modal-content {
        width: 95%;
        margin: 20px;
        max-height: 90vh;
    }
    
    .modal-header {
        padding: 20px 25px;
    }
    
    .modal-header h3 {
        font-size: 1.3rem;
    }
    
    .modal-body {
        padding: 25px;
    }
    
    .service-options {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .service-option {
        padding: 15px;
    }
    
    .download-options {
        gap: 12px;
    }
    
    .download-option {
        padding: 12px;
    }
    
    .chat-messages {
        max-height: 150px;
    }
    
    .message-content {
        max-width: 90%;
    }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .service-card h3 {
        font-size: 1.2rem;
    }
    
    .feature-text h3 {
        font-size: 1.3rem;
    }
    
    .pricing-card h3 {
        font-size: 1.2rem;
    }
    
    .amount {
        font-size: 2rem;
    }
    
    .about-text h2 {
        font-size: 1.8rem;
    }
    
    .team-photo {
        width: 200px;
        height: 200px;
    }
    
    .float-item {
        width: 40px;
        height: 40px;
    }
    
    .float-icon {
        font-size: 16px;
    }
}

/* 横屏模式优化 */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 100px 0 50px;
    }
    
    .hero-content {
        gap: 30px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .services,
    .features,
    .pricing,
    .about,
    .contact {
        padding: 40px 0;
    }
    
    .modal-content {
        max-height: 95vh;
    }
}

/* 侧边栏悬浮功能 */
.sidebar-float {
    position: fixed;
    right: 20px;
    bottom: 100px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.float-item {
    position: relative;
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 234, 255, 0.3);
}

.float-item:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 234, 255, 0.4);
}

.float-icon {
    color: #0a0e1a;
    font-size: 20px;
}

.float-tooltip {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.float-tooltip::after {
    content: '';
    position: absolute;
    right: -5px;
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-left-color: rgba(0, 0, 0, 0.8);
}

.float-item:hover .float-tooltip {
    opacity: 1;
    visibility: visible;
}

/* 弹窗样式 */
.customer-service-modal,
.app-download-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.2);
    border-radius: 20px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-header h3 {
    color: #e8f4fd;
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: #b0c4de;
    font-size: 20px;
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: #00eaff;
}

.modal-body {
    padding: 30px;
}

/* 客服弹窗内容 */
.service-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.service-option {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.service-option:hover {
    border-color: rgba(0, 234, 255, 0.3);
    background: rgba(0, 234, 255, 0.05);
}

.service-option i {
    font-size: 24px;
    color: #00eaff;
    margin-bottom: 10px;
    display: block;
}

.service-option span {
    color: #e8f4fd;
    font-weight: 600;
    display: block;
    margin-bottom: 5px;
}

.service-option small {
    color: #b0c4de;
    font-size: 12px;
}

.chat-widget {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: rgba(0, 234, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-header span {
    color: #e8f4fd;
    font-weight: 600;
}

.status.online {
    color: #00ff88;
    font-size: 12px;
}

.chat-messages {
    padding: 20px;
    max-height: 200px;
    overflow-y: auto;
}

.message {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.message-avatar {
    width: 30px;
    height: 30px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-size: 12px;
    font-weight: 600;
}

.message-content {
    background: rgba(255, 255, 255, 0.05);
    padding: 10px 15px;
    border-radius: 12px;
    color: #b0c4de;
    font-size: 14px;
    max-width: 80%;
}

.chat-input {
    display: flex;
    gap: 10px;
    padding: 15px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-input input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 10px 15px;
    color: #e8f4fd;
    font-size: 14px;
}

.chat-input button {
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border: none;
    border-radius: 8px;
    width: 40px;
    color: #0a0e1a;
    cursor: pointer;
    transition: all 0.3s ease;
}

.chat-input button:hover {
    transform: scale(1.05);
}

/* APP下载弹窗内容 */
.app-preview {
    text-align: center;
    margin-bottom: 30px;
}

.app-screenshot {
    width: 200px;
    height: 300px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 20px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
}

.app-screenshot i {
    font-size: 60px;
    margin-bottom: 15px;
}

.download-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
}

.download-option {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.download-option:hover {
    border-color: rgba(0, 234, 255, 0.3);
    background: rgba(0, 234, 255, 0.05);
}

.download-option i {
    font-size: 24px;
    color: #00eaff;
}

.download-info {
    flex: 1;
}

.download-info span {
    color: #e8f4fd;
    font-weight: 600;
    display: block;
}

.download-info small {
    color: #b0c4de;
    font-size: 12px;
}

.download-btn {
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border: none;
    color: #0a0e1a;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 234, 255, 0.3);
}

.app-features h4 {
    color: #e8f4fd;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.app-features ul {
    list-style: none;
}

.app-features li {
    color: #b0c4de;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-features i {
    color: #00eaff;
    font-size: 12px;
}

/* 视频演示弹窗 */
.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
}

.video-modal-content {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.2);
    border-radius: 20px;
    max-width: 800px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

.video-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.video-modal-header h3 {
    color: #e8f4fd;
    font-size: 1.5rem;
    font-weight: 600;
}

.video-modal-close {
    background: none;
    border: none;
    color: #b0c4de;
    font-size: 20px;
    cursor: pointer;
    transition: color 0.3s ease;
}

.video-modal-close:hover {
    color: #00eaff;
}

.video-modal-body {
    padding: 30px;
}

.video-container {
    text-align: center;
}

.video-placeholder {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
}

.video-animation {
    margin-bottom: 20px;
}

.demo-screen {
    background: #1a1f2e;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(0, 234, 255, 0.2);
}

.demo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: rgba(0, 234, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.demo-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #00eaff;
    font-weight: 600;
}

.demo-status {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #00ff88;
    font-size: 14px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #00ff88;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.demo-content {
    padding: 20px;
    min-height: 300px;
    position: relative;
}

.demo-step {
    display: none;
    animation: fadeIn 0.5s ease;
}

.demo-step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.step-indicator {
    background: linear-gradient(45deg, #00eaff, #0099cc);
    color: #0a0e1a;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 15px;
}

.step-content h4 {
    color: #e8f4fd;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.template-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.template-option {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.template-option.active {
    border-color: #00eaff;
    background: rgba(0, 234, 255, 0.1);
}

.template-option i {
    font-size: 24px;
    color: #00eaff;
    margin-bottom: 8px;
    display: block;
}

.template-option span {
    color: #e8f4fd;
    font-size: 14px;
}

.form-demo {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-field label {
    color: #b0c4de;
    font-size: 14px;
}

.form-field input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 10px;
    color: #e8f4fd;
    font-size: 14px;
}

.signature-demo {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.signature-pad-demo {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    position: relative;
    min-height: 100px;
}

.signature-line-demo {
    border-bottom: 2px solid rgba(0, 234, 255, 0.3);
    margin-bottom: 10px;
}

.signature-animation {
    height: 40px;
    background: linear-gradient(90deg, transparent, #00eaff, transparent);
    background-size: 200% 100%;
    animation: signatureDraw 2s ease-in-out infinite;
    border-radius: 4px;
}

@keyframes signatureDraw {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.signature-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.signature-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar-demo {
    width: 30px;
    height: 30px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-size: 12px;
}

.signature-time {
    color: #b0c4de;
    font-size: 12px;
}

.completion-demo {
    text-align: center;
    padding: 20px;
}

.success-animation {
    margin-bottom: 20px;
}

.success-animation i {
    font-size: 60px;
    color: #00ff88;
    animation: successPulse 1s ease-in-out;
}

@keyframes successPulse {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.completion-demo h5 {
    color: #e8f4fd;
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.completion-demo p {
    color: #b0c4de;
    margin-bottom: 20px;
}

.contract-preview {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.contract-preview i {
    font-size: 24px;
    color: #00eaff;
}

.contract-preview span {
    color: #e8f4fd;
    flex: 1;
}

.btn-download {
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border: none;
    color: #0a0e1a;
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 234, 255, 0.3);
}

.demo-progress {
    padding: 15px 20px;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.progress-bar {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    height: 8px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    background: linear-gradient(90deg, #00eaff, #0099cc);
    height: 100%;
    border-radius: 10px;
    transition: width 0.5s ease;
}

.progress-text {
    color: #b0c4de;
    font-size: 12px;
    text-align: center;
}

.video-controls {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.btn-play, .btn-reset {
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border: none;
    color: #0a0e1a;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-play:hover, .btn-reset:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 234, 255, 0.3);
}

/* 优化后的合同示例样式 */
.floating-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.2);
    border-radius: 20px;
    padding: 25px;
    margin: 20px;
    animation: float-card 6s ease-in-out infinite;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

@keyframes float-card {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.floating-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 234, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

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

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    position: relative;
}

.card-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #0a0e1a;
    animation: avatarPulse 2s ease-in-out infinite;
}

@keyframes avatarPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.card-info h4 {
    color: #e8f4fd;
    margin: 0;
    font-size: 1.1rem;
}

.card-info p {
    color: #b0c4de;
    margin: 0;
    font-size: 0.9rem;
}

.card-status {
    margin-left: auto;
}

.status-badge {
    background: linear-gradient(45deg, #00ff88, #00cc6a);
    color: #0a0e1a;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    animation: statusBlink 2s ease-in-out infinite;
}

@keyframes statusBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.card-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.document-flow {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.flow-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.flow-step.active {
    border-color: rgba(0, 234, 255, 0.3);
    background: rgba(0, 234, 255, 0.05);
    animation: stepPulse 2s ease-in-out infinite;
}

@keyframes stepPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 234, 255, 0.3); }
    50% { box-shadow: 0 0 0 10px rgba(0, 234, 255, 0.1); }
}

.step-icon {
    width: 35px;
    height: 35px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-size: 14px;
}

.step-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.step-title {
    color: #e8f4fd;
    font-size: 14px;
    font-weight: 500;
}

.step-time {
    color: #b0c4de;
    font-size: 12px;
}

.signature-area {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 15px;
}

.signature-preview {
    position: relative;
    margin-bottom: 10px;
}

.signature-line {
    border-bottom: 2px solid rgba(0, 234, 255, 0.3);
    margin-bottom: 10px;
}

.signature-animation {
    height: 30px;
    background: linear-gradient(90deg, transparent, #00eaff, transparent);
    background-size: 200% 100%;
    animation: signatureDraw 3s ease-in-out infinite;
    border-radius: 4px;
    position: relative;
}

.signature-animation::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 234, 255, 0.5), transparent);
    animation: signatureGlow 2s ease-in-out infinite;
}

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

.signature-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.signature-label {
    color: #e8f4fd;
    font-size: 14px;
    font-weight: 500;
}

.signature-time {
    color: #b0c4de;
    font-size: 12px;
}

.document-preview {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
}

.document-preview:hover {
    border-color: rgba(0, 234, 255, 0.3);
    transform: translateY(-2px);
}

.doc-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, #00eaff, #0099cc);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0e1a;
    font-size: 18px;
}

.doc-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.doc-name {
    color: #e8f4fd;
    font-size: 14px;
    font-weight: 500;
}

.doc-size {
    color: #b0c4de;
    font-size: 12px;
}

.doc-actions {
    display: flex;
    gap: 8px;
}

.btn-preview, .btn-download {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #b0c4de;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-preview:hover, .btn-download:hover {
    background: rgba(0, 234, 255, 0.2);
    border-color: rgba(0, 234, 255, 0.5);
    color: #00eaff;
    transform: scale(1.1);
}

.contract-progress {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 15px;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.progress-info span:first-child {
    color: #e8f4fd;
    font-size: 14px;
    font-weight: 500;
}

.progress-percent {
    color: #00eaff;
    font-size: 14px;
    font-weight: 600;
}

.progress-bar {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    height: 8px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    background: linear-gradient(90deg, #00eaff, #0099cc);
    height: 100%;
    border-radius: 10px;
    position: relative;
    animation: progressGlow 2s ease-in-out infinite;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progressShine 2s ease-in-out infinite;
}

@keyframes progressGlow {
    0%, 100% { box-shadow: 0 0 5px rgba(0, 234, 255, 0.3); }
    50% { box-shadow: 0 0 15px rgba(0, 234, 255, 0.6); }
}

@keyframes progressShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* 浮动元素 */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.float-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 234, 255, 0.2);
    border-radius: 12px;
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #e8f4fd;
    font-size: 12px;
    font-weight: 500;
    animation: floatElement 4s ease-in-out infinite;
    pointer-events: auto;
    cursor: pointer;
    transition: all 0.3s ease;
}

.float-element:hover {
    background: rgba(0, 234, 255, 0.1);
    transform: scale(1.05);
}

.float-element i {
    color: #00eaff;
    font-size: 14px;
}

.element-1 {
    top: 20px;
    right: -60px;
    animation-delay: 0s;
}

.element-2 {
    top: 50%;
    right: -80px;
    animation-delay: 1s;
}

.element-3 {
    bottom: 20px;
    right: -70px;
    animation-delay: 2s;
}

@keyframes floatElement {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(2deg); }
    50% { transform: translateY(-5px) rotate(-1deg); }
    75% { transform: translateY(-15px) rotate(1deg); }
}

/* 移动端优化 */
@media (max-width: 768px) {
    .floating-card {
        margin: 10px;
        padding: 20px;
    }
    
    .card-header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .card-status {
        margin-left: 0;
    }
    
    .flow-step {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
    
    .step-text {
        align-items: center;
    }
    
    .document-preview {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .doc-actions {
        justify-content: center;
    }
    
    .float-element {
        display: none;
    }
    
    .video-modal-content {
        max-width: 95%;
        margin: 10px;
    }
    
    .template-selector {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .video-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .btn-play, .btn-reset {
        width: 100%;
        justify-content: center;
    }
}

/* abroadsign.com 风格的服务与功能区 */
.services-abroad-grid, .features-abroad-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 36px;
    margin-top: 48px;
}
.service-abroad-item, .feature-abroad-item {
    background: rgba(255,255,255,0.04);
    border: 1.5px solid rgba(0,234,255,0.13);
    border-radius: 18px;
    padding: 38px 24px 32px 24px;
    text-align: center;
    box-shadow: 0 4px 24px 0 rgba(0,234,255,0.04);
    transition: transform 0.2s, box-shadow 0.2s;
}
.service-abroad-item:hover, .feature-abroad-item:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 8px 32px 0 rgba(0,234,255,0.10);
    border-color: #00eaff;
}
.service-abroad-icon, .feature-abroad-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 18px auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #00eaff 60%, #0099cc 100%);
    border-radius: 50%;
    box-shadow: 0 2px 12px 0 rgba(0,234,255,0.10);
}
.service-abroad-icon i, .feature-abroad-icon i {
    color: #fff;
    font-size: 2rem;
}
.service-abroad-item h3, .feature-abroad-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #00eaff;
    margin-bottom: 10px;
    margin-top: 0;
}
.service-abroad-item p, .feature-abroad-item p {
    color: #b0c4de;
    font-size: 1rem;
    line-height: 1.7;
    margin: 0;
}
@media (max-width: 768px) {
    .services-abroad-grid, .features-abroad-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .service-abroad-item, .feature-abroad-item {
        padding: 28px 12px 24px 12px;
    }
    .service-abroad-icon, .feature-abroad-icon {
        width: 48px;
        height: 48px;
    }
    .service-abroad-icon i, .feature-abroad-icon i {
        font-size: 1.5rem;
    }
}

/* 价格方案 */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 234, 255, 0.1);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card.featured {
    border-color: rgba(0, 234, 255, 0.4);
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 234, 255, 0.1);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(90deg, #00eaff, #0099cc);
    color: #0a0e1a;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #e8f4fd;
}

.price {
    margin-bottom: 15px;
}

.currency {
    font-size: 1.2rem;
    color: #b0c4de;
    vertical-align: top;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: #00eaff;
}

.period {
    font-size: 1rem;
    color: #b0c4de;
}

.pricing-header p {
    color: #b0c4de;
    margin-bottom: 30px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    color: #b0c4de;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features i {
    color: #00eaff;
    font-size: 0.9rem;
}

.btn-pricing {
    width: 100%;
    padding: 15px;
    background: linear-gradient(90deg, #00eaff, #0099cc);
    border: none;
    color: #0a0e1a;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-pricing:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 234, 255, 0.3);
}