:root {
    --primary: #1a3e72;
    --secondary: #f8b700;
    --light: #f5f7fa;
    --dark: #333;
    --gray: #6c757d;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}
body {
    line-height: 1.6;
    color: var(--dark);
}
a {
    text-decoration: none;
    color: var(--primary);
}
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
.btn {
    display: inline-block;
    padding: 20px 60px;
    background: var(--secondary);
    color: #fff;
    border-radius: 4px;
    font-weight: bold;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}
.btn:hover {
    background: #e0a800;
    transform: translateY(-2px);
}
.section {
    padding: 60px 0;
}
.section-title {
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary);
}
.section-title h2 {
    font-size: 2.2rem;
    margin-bottom: 15px;
}
.section-title p {
    color: var(--gray);
    font-size: 1.1rem;
}

header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    z-index: 1000;
}
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}
.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary);
	display: flex;
	align-items: center;
}
@media screen and (max-width: 750px) {   
	.logo {     
		font-size: calc(1.4rem * 1); /* 保持原尺寸 */   
	} 
} 
/* 特殊分辨率适配 */ 
@media screen and (max-width: 375px) {
	.logo {     
		font-size: calc(1.4rem * 0.9); /* 缩小10% */  
	} 
} 
.logo .logo_img{
	width: 3rem;
}
.logo span {
    color: var(--secondary);
}
.nav-links {
    display: flex;
    list-style: none;
}
.nav-links li {
    margin-left: 30px;
}
.nav-links a {
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
}
.nav-links a:hover {
    color: var(--secondary);
}
.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.banner {
    background:url('../img/banner.png');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 180px 0 100px;
    text-align: center;
}
.banner h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
}
.banner p {
	text-align: left;
	font-size: 2.8rem;
	/* max-width: 70%; */
	margin: 0 20px 30px;
	color: #65b4f1;
}

.services {
    background: var(--light);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}
.service-card {
    background: #fff;
    border-radius: 8px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
    transition: all 0.3s;
}
.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.service-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--secondary);
}
.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--primary);
}
.service-card p {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 20px;
    min-height: 40px;
}
.service-card .btn {
    padding: 8px 15px;
    font-size: 0.9rem;
}
.service-card img {
    width: 50px;
}

.advantages {
    background: #fff;
}
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}
.advantage-card {
    text-align: center;
    padding: 30px 20px;
    border-radius: 8px;
    transition: all 0.3s;
    background: var(--light);
}
.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
.advantage-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}
.advantage-card h3 {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 15px;
}
.advantage-card p {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 40px;
}
.about-text {
    flex: 1;
}
.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 20px;
}
.about-image {
    flex: 1;
    border-radius: 8px;
    overflow: hidden;
}
.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.clients {
    background: var(--light);
}
.client-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}
.client-logo {
    width: 150px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: all 0.3s;
}
.client-logo img {
    max-width: 100%;
    max-height: 100%;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}
.contact-info h3 {
    color: var(--primary);
    margin-bottom: 20px;
}
.contact-info p {
    margin-bottom: 15px;
	display: flex;
	align-items: center;
	img{
		max-width: 20px;
		max-height: 20px;
		margin-right: 8px;;
	}
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
}
.contact-form textarea {
    height: 120px;
}

footer {
    background: var(--primary);
    color: white;
    padding: 50px 0 20px;
}
.footer-content {
    display: flex;
    justify-content: center;
    gap: 100px;
    margin-bottom: 30px;
}
.footer-column h3 {
    color: var(--secondary);
    margin-bottom: 20px;
    font-size: 1.2rem;
}
.footer-column ul {
    list-style: none;
}
.footer-column ul li {
    margin-bottom: 10px;
}
.footer-column ul li a {
    color: #ccc;
    transition: color 0.3s;
}
.footer-column ul li a:hover {
    color: white;
}
.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #ccc;
    font-size: 0.9rem;
}

.float-contact {
    position: fixed;
    right: 20px;
    bottom: 80px;
    width: 200px;
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    z-index: 999;
}
.float-contact h4 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.1rem;
    text-align: center;
}
.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}
.contact-icon {
    width: 30px;
    height: 30px;
    background: var(--light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
    color: var(--primary);
}
.contact-info {
    flex: 1;
    font-size: 0.9rem;
}
.contact-info strong {
    display: block;
    color: var(--dark);
}
.contact-info span {
    color: var(--gray);
    font-size: 0.8rem;
}
.qr-code {
    width: 100%;
    padding: 5px;
    border: 1px solid #eee;
    margin-top: 10px;
}
.qr-code img {
    width: 100%;
    display: block;
}
.online-consult {
    display: block;
    text-align: center;
    background: var(--secondary);
    color: white;
    padding: 8px;
    border-radius: 4px;
    margin-top: 10px;
    font-size: 0.9rem;
    transition: background 0.3s;
}
.online-consult:hover {
    background: #e0a800;
}

@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 992px) {
    .about-content {
        flex-direction: column;
    }
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }
    .nav-links.active {
        display: flex;
    }
    .nav-links li {
        margin: 10px 0;
    }
    .mobile-menu-btn {
        display: block;
    }
    .banner h1 {
        font-size: 2.2rem;
    }
    .section {
        padding: 40px 0;
    }
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .float-contact {
        right: 10px;
        bottom: 60px;
        width: 160px;
        padding: 15px;
    }
    .footer-content {
        flex-wrap: wrap;
        padding: 0 20px;
        gap: 30px;
    }
    .footer-column {
        width: 100%;
    }
}
@media (max-width: 576px) {
    .services-grid {
        grid-template-columns: 1fr;
		display: flex;
		flex-wrap: wrap;
    }
	.service-card{
		width: 45%;
	}
    .advantages-grid {
        grid-template-columns: 1fr;
    }
}

.tax-ext-container {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
}
.tax-ext-left {
    width: 300px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding-right: 0;
}
.tax-ext-card {
    text-align: center;
    background: #fff;
    border-radius: 6px;
}
.tax-ext-card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
}
.tax-ext-card-title {
    font-size: 16px;
    font-weight: 500;
    color: #303133;
    margin-bottom: 8px;
}
.tax-ext-card-desc {
    font-size: 14px;
    color: #909399;
    line-height: 1.4;
}
.tax-ext-right {
    flex: 1;
    padding: 20px;
    display: grid;
    grid-template-columns: 1fr 220px;
    gap: 20px;
    align-items: start;
}
.tax-ext-section {
    background: #fff;
    position: relative;
    padding: 16px;
    padding-top: 50px;
}
.tax-ext-section-long {
    position: relative;
    padding-top: 50px;
}
.tax-ext-section-short {
    min-height: 180px;
}
.tax-ext-section-title {
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    background: #6699ff;
    display: inline-block;
    padding: 6px 12px;
    border-radius: 4px;
    margin-bottom: 12px;
}
.tax-mod-section-title {
    display: inline-block;
    padding: 6px 22px 6px 12px;
    color: #fff;
    background-color: #6699ff;
    clip-path: polygon(0 0, 100% 0, calc(100% - 20px) 100%, 0 100%);
    position: absolute;
    left: 0px;
    top: 0px;
}
.tax-ext-3col-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px 15px;
    list-style: none;
    padding-left: 0;
}
.tax-ext-normal-list {
    list-style: none;
    padding-left: 16px;
}
.tax-ext-3col-list li,
.tax-ext-normal-list li {
    font-size: 14px;
    color: #606266;
    line-height: 2;
    position: relative;
    padding-left: 16px;
}
.tax-ext-3col-list li::before,
.tax-ext-normal-list li::before {
    content: "•";
    color: #6699ff;
    position: absolute;
    left: 0;
}
@media (max-width: 768px) {
    .tax-ext-container {
        flex-direction: column;
    }
    .tax-ext-left {
        width: auto;
        border-right: none;
        border-bottom: 1px solid #ebeef5;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-around;
        padding: 20px 0px;
    }
    .tax-ext-card {
        width: 100%;
        margin: 0px 20px;
    }
    .tax-ext-right {
        grid-template-columns: 1fr;
    }
    .tax-ext-3col-list {
        grid-template-columns: 1fr;
    }
}

.company-register-container * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}
.company-register-container {
    width: 90%;
    max-width: 1200px;
    margin: 40px auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
}
.company-register-process {
    text-align: center;
    margin-bottom: 40px;
}
.process-title {
    font-size: 28px;
    color: #ff7f00;
    margin-bottom: 10px;
}
.process-subtitle {
    font-size: 14px;
    color: #999;
    margin-bottom: 20px;
}
.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}
.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0 20px;
}
.step-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 10px;
}
.step-text {
    font-size: 14px;
    color: #333;
}
.arrow {
    font-size: 20px;
    color: #999;
}
.arrow img {
    width: 30px;
    margin: 0px 20px;
}
.company-register-why {
    text-align: center;
}
.why-title {
    font-size: 24px;
    color: #ff7f00;
    margin-bottom: 10px;
}
.why-subtitle {
    font-size: 14px;
    color: #999;
    margin-bottom: 30px;
}
.why-cards {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}
.card {
    width: 25%;
    border-right: 1px solid #E7D6C6;
    padding: 20px;
    margin-bottom: 20px;
    text-align: center;
}
.card:nth-of-type(4n){
	border: 0px;
}
.card:last-child {
    border: 0px;
}
.card-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 15px;
}
.card-title {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}
.card-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
	height: 100px;
}
.card-btn {
    background-color: #ff7f00;
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
}
.card-btn:hover {
    opacity: 0.9;
}
@media (max-width: 768px) {
    .process-steps {
    }
    .step {
        margin: 10px 30px;
    }
    .arrow {
        display: none;
    }
    .why-cards {
        justify-content: center;
    }
    .card {
        width: 100%;
        border: 0px;
    }
}

.mask {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 999;
    display: none;
    cursor: pointer;
}
.qr-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    padding: 30px 20px;
    border-radius: 8px;
    z-index: 1000;
    display: none;
    text-align: center;
    min-width: 300px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}
.modal-title {
    margin: 0 0 20px;
    color: #333;
    font-size: 18px;
}
.modal-qr-code {
    width: 240px;
    height: 240px;
    margin: 0 auto 15px;
}
.modal-qr-code img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: 1px solid #eee;
}
.modal-tip {
    margin: 0 0 20px;
    color: #666;
    font-size: 14px;
}
.close-btn {
    padding: 8px 20px;
    background-color: #f8b700;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}
.close-btn:hover {
    background-color: #0bc0a8;
}