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

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #ffffff;
    line-height: 1.6;
}

/* 头部导航 */
.header {
    padding: 18px 0;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(25px);
    border-bottom: 2px solid rgba(255, 107, 53, 0.3);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    color: #ff6b35;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 10px 18px;
    border-radius: 25px;
    position: relative;
    background: transparent;
}

.nav-link:hover {
    background: rgba(255, 107, 53, 0.15);
    color: #ff8c42;
    transform: translateY(-2px);
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -8px;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.nav-link:hover::before {
    width: 60%;
}

.logo {
    font-size: 36px;
    font-weight: 900;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 25px rgba(255, 107, 53, 0.4);
}

.nav-icon {
    color: #ff6b35;
    font-size: 22px;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 10px;
    border-radius: 50%;
    background: rgba(255, 107, 53, 0.1);
}

.nav-icon:hover {
    background: rgba(255, 107, 53, 0.2);
    color: #ff8c42;
    transform: scale(1.1);
}

/* 主要内容区 */
.main-content {
    padding: 0;
}

/* 主要横幅区域 - 商务专业风格 */
.hero-section {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.12), rgba(247, 147, 30, 0.06));
    border-bottom: 2px solid rgba(255, 107, 53, 0.15);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 25% 25%, rgba(255, 107, 53, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 75% 75%, rgba(247, 147, 30, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-left {
    padding-right: 30px;
}

.hero-badge {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: #ffffff;
    padding: 12px 30px;
    border-radius: 35px;
    font-size: 15px;
    font-weight: 700;
    display: inline-block;
    margin-bottom: 25px;
    box-shadow: 0 6px 25px rgba(255, 107, 53, 0.4);
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 64px;
    font-weight: 900;
    color: #ffffff;
    margin-bottom: 20px;
    line-height: 1.1;
    letter-spacing: -1px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 32px;
    color: #ff6b35;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 700;
}

.hero-desc {
    font-size: 20px;
    color: #b8c5d6;
    margin-bottom: 35px;
    line-height: 1.8;
    max-width: 650px;
    font-weight: 400;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 45px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 17px;
    color: #ff6b35;
    font-weight: 600;
    background: rgba(255, 107, 53, 0.08);
    padding: 12px 18px;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(255, 107, 53, 0.12);
    transform: translateX(5px);
}

.feature-item i {
    font-size: 20px;
}

.hero-buttons {
    display: flex;
    gap: 25px;
}

.primary-btn {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: #ffffff;
    border: none;
    padding: 20px 45px;
    border-radius: 35px;
    font-size: 19px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.5);
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: 0.5px;
}

.primary-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.7);
}

.secondary-btn {
    background: transparent;
    color: #ff6b35;
    border: 3px solid #ff6b35;
    padding: 17px 45px;
    border-radius: 35px;
    font-size: 17px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.secondary-btn:hover {
    background: rgba(255, 107, 53, 0.12);
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.2);
}

/* 右侧视觉区域 */
.hero-right {
    position: relative;
}

.hero-visual {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-logo {
    text-align: center;
    z-index: 2;
    position: relative;
}

.logo-circle {
    width: 140px;
    height: 140px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    box-shadow: 0 15px 50px rgba(255, 107, 53, 0.6);
    animation: pulse 3s ease-in-out infinite;
    position: relative;
}

.logo-circle::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid rgba(255, 107, 53, 0.3);
    border-radius: 50%;
    animation: rotate 10s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.logo-circle i {
    font-size: 56px;
    color: #ffffff;
}

.main-logo h3 {
    font-size: 28px;
    color: #ff6b35;
    font-weight: 900;
    text-shadow: 0 2px 5px rgba(255, 107, 53, 0.3);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

.floating-stats {
    position: absolute;
    width: 100%;
    height: 100%;
}

.stat-bubble {
    position: absolute;
    background: rgba(255, 107, 53, 0.12);
    border: 2px solid rgba(255, 107, 53, 0.3);
    border-radius: 20px;
    padding: 15px 25px;
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: #ff6b35;
    font-weight: 600;
    animation: float 5s ease-in-out infinite;
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.15);
}

.stat-1 {
    top: 30px;
    left: 30px;
    animation-delay: 0s;
}

.stat-2 {
    top: 80px;
    right: 30px;
    animation-delay: 2s;
}

.stat-3 {
    bottom: 30px;
    left: 60px;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

/* 服务展示区域 */
.services-section {
    padding: 80px 0;
    background: rgba(26, 26, 46, 0.6);
}

.services-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 30px;
}

.service-card {
    background: rgba(255, 107, 53, 0.08);
    border: 2px solid rgba(255, 107, 53, 0.2);
    border-radius: 20px;
    padding: 30px;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 53, 0.1), transparent);
    transition: left 0.6s ease;
}

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.3);
    border-color: rgba(255, 107, 53, 0.4);
}

.primary-service {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.15), rgba(247, 147, 30, 0.08));
    border: 2px solid rgba(255, 107, 53, 0.4);
}

.service-header {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 25px;
}

.service-icon {
    width: 55px;
    height: 55px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.3);
}

.service-icon i {
    font-size: 25px;
    color: #ffffff;
}

.service-info h3 {
    font-size: 20px;
    color: #ff6b35;
    margin-bottom: 8px;
    font-weight: 700;
}

.service-info p {
    font-size: 14px;
    color: #b8c5d6;
    font-weight: 500;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.feature-tag {
    background: rgba(255, 107, 53, 0.2);
    color: #ff6b35;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 13px;
    border: 1px solid rgba(255, 107, 53, 0.3);
    font-weight: 600;
}

.service-icon-large {
    width: 60px;
    height: 60px;
    background: rgba(255, 107, 53, 0.2);
    border: 2px solid rgba(255, 107, 53, 0.3);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon-large i {
    font-size: 28px;
    color: #ff6b35;
}

.service-card h4 {
    font-size: 18px;
    color: #ff6b35;
    margin-bottom: 10px;
    font-weight: 700;
}

.service-card p {
    font-size: 14px;
    color: #b8c5d6;
    font-weight: 500;
}

.brand-service {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: #ffffff;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.brand-service::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    animation: shine 3s infinite;
}

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

.brand-display {
    font-size: 42px;
    font-weight: 900;
    margin-bottom: 15px;
    text-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.service-badge {
    background: #ff6b35;
    color: #ffffff;
    padding: 8px 15px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 700;
    display: inline-block;
    margin-bottom: 20px;
}

.tool-preview {
    margin-top: 20px;
    height: 40px;
    position: relative;
}

.preview-elements {
    display: flex;
    gap: 10px;
    align-items: center;
}

.preview-elements .element {
    width: 15px;
    height: 15px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    border-radius: 50%;
    animation: bounce 3s ease-in-out infinite;
}

.preview-elements .element:nth-child(2) {
    animation-delay: 0.6s;
}

.preview-elements .element:nth-child(3) {
    animation-delay: 1.2s;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* 底部信息区域 */
.info-section {
    padding: 80px 0;
    background: rgba(26, 26, 46, 0.8);
    border-top: 2px solid rgba(255, 107, 53, 0.2);
}

.info-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
}

.contact-info, .about-info, .partnership-info {
    background: rgba(255, 107, 53, 0.06);
    border: 2px solid rgba(255, 107, 53, 0.2);
    border-radius: 20px;
    padding: 35px;
    position: relative;
    overflow: hidden;
}

.contact-info::before, .about-info::before, .partnership-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ff6b35, #f7931e);
}

.contact-info h3, .about-info h3, .partnership-info h3 {
    font-size: 22px;
    color: #ff6b35;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 15px;
    color: #b8c5d6;
    padding: 12px;
    border-radius: 10px;
    background: rgba(255, 107, 53, 0.05);
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(255, 107, 53, 0.1);
    transform: translateX(5px);
}

.contact-item i {
    color: #ff6b35;
    width: 22px;
    font-size: 18px;
}

.contact-btn {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: #ffffff;
    border: none;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 25px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
}

.contact-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 35px rgba(255, 107, 53, 0.6);
}

.about-info p {
    font-size: 15px;
    color: #b8c5d6;
    margin-bottom: 30px;
    line-height: 1.8;
    font-weight: 500;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: rgba(255, 107, 53, 0.05);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(255, 107, 53, 0.1);
    transform: translateY(-3px);
}

.stat-item i {
    color: #ff6b35;
    font-size: 20px;
}

.stat-item div {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 13px;
    color: #8896b3;
    font-weight: 500;
}

.stat-value {
    font-size: 18px;
    color: #ff6b35;
    font-weight: 800;
}

.partnership-info {
    text-align: center;
}

.partnership-icon {
    width: 70px;
    height: 70px;
    background: rgba(255, 107, 53, 0.2);
    border: 2px solid rgba(255, 107, 53, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.partnership-icon i {
    font-size: 28px;
    color: #ff6b35;
}

.partnership-info p {
    font-size: 15px;
    color: #b8c5d6;
    margin-bottom: 25px;
    font-weight: 500;
}

.partner-logos {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.partner-logo {
    width: 45px;
    height: 45px;
    background: rgba(255, 107, 53, 0.1);
    border: 2px solid rgba(255, 107, 53, 0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    background: rgba(255, 107, 53, 0.2);
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.2);
}

.partner-logo i {
    font-size: 20px;
    color: #ff6b35;
}

/* 底部 */
.footer {
    text-align: center;
    padding: 30px 0;
    border-top: 2px solid rgba(255, 107, 53, 0.2);
    background: rgba(26, 26, 46, 0.95);
}

.footer p {
    font-size: 13px;
    color: #8896b3;
    font-weight: 500;
}

/* 微信二维码弹窗样式 - 商务专业风格 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.5s ease;
}

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

.modal-content {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    margin: 5% auto;
    border: 2px solid rgba(255, 107, 53, 0.4);
    border-radius: 30px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 30px 80px rgba(255, 107, 53, 0.3);
    animation: slideIn 0.5s ease;
    overflow: hidden;
}

@keyframes slideIn {
    from { transform: translateY(-60px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.25), rgba(247, 147, 30, 0.15));
    padding: 30px 35px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid rgba(255, 107, 53, 0.2);
}

.modal-header h3 {
    color: #ff6b35;
    font-size: 24px;
    font-weight: 800;
    margin: 0;
}

.close {
    color: #ff6b35;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 107, 53, 0.1);
}

.close:hover {
    background: rgba(255, 107, 53, 0.2);
    color: #ff8c42;
    transform: rotate(90deg) scale(1.1);
}

.modal-body {
    padding: 40px 35px;
}

.qr-container {
    display: flex;
    gap: 35px;
    align-items: flex-start;
    justify-content: center;
}

.qr-code {
    text-align: center;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.qr-code i {
    font-size: 40px;
    color: #ff6b35;
    margin-bottom: 15px;
    display: block;
}

.qr-code p {
    color: #ff6b35;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 25px;
}

.qr-image-container {
    position: relative;
    margin-bottom: 25px;
    display: flex;
    justify-content: center;
    align-items: center;
}

#qrImage {
    width: 200px;
    height: 200px;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.3);
    object-fit: cover;
    display: block;
    border: 3px solid rgba(255, 107, 53, 0.3);
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(247, 147, 30, 0.1));
    border: 3px dashed rgba(255, 107, 53, 0.5);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.qr-placeholder:hover {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.3), rgba(247, 147, 30, 0.2));
    border-color: rgba(255, 107, 53, 0.7);
    transform: scale(1.02);
}

.placeholder-content {
    text-align: center;
    padding: 30px;
}

.placeholder-content i {
    font-size: 40px;
    color: #ff6b35;
    margin-bottom: 15px;
    display: block;
}

.placeholder-content p {
    color: #ff6b35;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.placeholder-content small {
    color: #b8c5d6;
    font-size: 13px;
}

.qr-instructions {
    margin-top: 25px;
    padding: 20px;
    background: rgba(255, 107, 53, 0.08);
    border: 2px solid rgba(255, 107, 53, 0.2);
    border-radius: 15px;
    font-size: 14px;
    line-height: 1.6;
}

.qr-instructions p {
    margin-bottom: 8px;
    color: #b8c5d6;
}

.qr-instructions p:first-child {
    color: #ff6b35;
    font-weight: 700;
    margin-bottom: 12px;
}

.qr-instructions p:last-child {
    margin-bottom: 0;
    color: #ff6b35;
    font-family: 'Courier New', monospace;
    background: rgba(255, 107, 53, 0.1);
    padding: 8px 12px;
    border-radius: 8px;
    display: inline-block;
}

.qr-info {
    flex: 1;
}

.qr-info h4 {
    color: #ff6b35;
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 15px;
}

.wechat-id {
    background: rgba(255, 107, 53, 0.12);
    color: #ff6b35;
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    border: 2px solid rgba(255, 107, 53, 0.3);
    display: inline-block;
}

.qr-tip {
    color: #b8c5d6;
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 30px;
}

.service-time {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #ff6b35;
    font-size: 15px;
    background: rgba(255, 107, 53, 0.08);
    padding: 12px 20px;
    border-radius: 12px;
    border: 2px solid rgba(255, 107, 53, 0.2);
}

.service-time i {
    font-size: 18px;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    border: none;
    border-radius: 50%;
    color: #ffffff;
    font-size: 24px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.5);
    z-index: 1000;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.7);
}

/* 页面加载动画 */
.loading-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.loading-animation.hidden {
    opacity: 0;
    pointer-events: none;
}

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

.loading-logo {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    animation: pulse 1.5s ease-in-out infinite;
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.4);
}

.loading-logo i {
    font-size: 45px;
    color: #ffffff;
}

.loading-text {
    color: #ff6b35;
    font-size: 22px;
    font-weight: 700;
}

.loading-spinner {
    margin-top: 30px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 107, 53, 0.3);
    border-left: 5px solid #ff6b35;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 页面切换动画 */
.page-transition {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.7s ease;
}

.page-transition.active {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式弹窗 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .qr-container {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .qr-placeholder {
        width: 160px;
        height: 160px;
    }
    
    .modal-body {
        padding: 35px 30px;
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .services-container {
        grid-template-columns: 1fr 1fr;
        gap: 25px;
    }
    
    .info-container {
        grid-template-columns: 1fr;
        gap: 35px;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 18px;
        padding: 0 20px;
    }
    
    .hero-container {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 26px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .services-container {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }
    
    .info-container {
        padding: 0 20px;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
    }
    
    .hero-section {
        padding: 80px 0;
    }
    
    .services-section {
        padding: 60px 0;
    }
    
    .info-section {
        padding: 60px 0;
    }
    
    .back-to-top {
        bottom: 30px;
        right: 30px;
        width: 55px;
        height: 55px;
        font-size: 22px;
    }
}