/*
 * ODI备案专业服务网站样式表
 * 主题：专业、商务、信赖
 * 适配ODI境外投资备案服务
 */

:root {
    --primary-color: #1565C0;
    --primary-dark: #0D47A1;
    --primary-light: #42A5F5;
    --secondary-color: #2E7D32;
    --accent-color: #FF6F00;
    --gold-color: #FFD700;
    --text-color: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    --bg-color: #ffffff;
    --bg-light: #F5F7FA;
    --bg-blue: #E3F2FD;
    --border-color: #E0E0E0;
    --shadow: 0 2px 10px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --border-radius-lg: 15px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--bg-color);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

.container-fluid {
    width: 100%;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background: var(--bg-color);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.navbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    font-weight: bold;
    box-shadow: 0 3px 15px rgba(21, 101, 192, 0.3);
}

.brand-text {
    font-size: 22px;
    font-weight: bold;
    color: var(--primary-dark);
}

.brand-text span {
    color: var(--accent-color);
}

.brand-slogan {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: -5px;
}

.navbar-nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--text-color);
    font-weight: 500;
    font-size: 15px;
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.navbar-contact {
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-phone {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 16px;
}

.btn-consult {
    background: linear-gradient(135deg, var(--accent-color) 0%, #FF8F00 100%);
    color: white;
    padding: 10px 25px;
    border-radius: 25px;
    font-weight: 500;
    transition: var(--transition);
    box-shadow: 0 3px 15px rgba(255, 111, 0, 0.3);
}

.btn-consult:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 111, 0, 0.4);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--text-color);
    transition: var(--transition);
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 50%, #1976D2 100%);
    padding: 180px 0 120px;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></svg>');
    background-size: 80px 80px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.hero h1 {
    font-size: 52px;
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h1 span {
    color: var(--gold-color);
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 35px;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
}

.hero-feature i {
    font-size: 22px;
    color: var(--gold-color);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, #FF8F00 100%);
    color: white;
    padding: 16px 45px;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 5px 25px rgba(255, 111, 0, 0.4);
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 111, 0, 0.5);
}

.btn-secondary {
    background: rgba(255,255,255,0.15);
    color: white;
    padding: 16px 45px;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 600;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255,255,255,0.3);
    display: inline-block;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.25);
    border-color: rgba(255,255,255,0.5);
}

/* 区块通用样式 */
.section {
    padding: 90px 0;
}

.section-bg {
    background: var(--bg-light);
}

.section-bg-blue {
    background: var(--bg-blue);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 38px;
    color: var(--primary-dark);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.section-header p {
    color: var(--text-light);
    font-size: 18px;
    margin-top: 25px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 特色服务卡片 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 25px;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

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

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--bg-blue) 0%, #BBDEFB 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 36px;
    color: var(--primary-color);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-color);
}

.feature-card p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.7;
}

/* 数据统计 */
.stats-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    padding: 70px 0;
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
}

.stat-number {
    font-size: 52px;
    font-weight: bold;
    color: var(--gold-color);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

/* 痛点卡片 */
.pain-points {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.pain-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 35px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid #e74c3c;
}

.pain-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-hover);
}

.pain-icon {
    width: 60px;
    height: 60px;
    background: #FFEBEE;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #e74c3c;
    margin-bottom: 20px;
}

.pain-card h3 {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 12px;
}

.pain-card p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.7;
}

/* 解决方案卡片 */
.solution-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.solution-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.solution-header {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #43A047 100%);
    color: white;
    padding: 25px;
    text-align: center;
}

.solution-header h3 {
    font-size: 20px;
    margin-bottom: 5px;
}

.solution-header .price {
    font-size: 28px;
    font-weight: bold;
    color: var(--gold-color);
}

.solution-header .price span {
    font-size: 14px;
    font-weight: normal;
    color: rgba(255,255,255,0.8);
}

.solution-body {
    padding: 25px;
}

.solution-body ul {
    list-style: none;
}

.solution-body li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.solution-body li:last-child {
    border-bottom: none;
}

.solution-body li::before {
    content: '✓';
    color: var(--secondary-color);
    font-weight: bold;
}

/* 流程步骤 */
.process-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 50px;
    right: 50px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.process-step {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
}

.step-number {
    width: 100px;
    height: 100px;
    background: white;
    border: 4px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-color);
    flex-shrink: 0;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.process-step:hover .step-number {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.step-content {
    flex: 1;
    padding-top: 10px;
}

.step-content h3 {
    font-size: 22px;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.step-content p {
    color: var(--text-light);
    line-height: 1.7;
}

.step-content ul {
    margin-top: 15px;
}

.step-content li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-color);
    font-size: 15px;
}

.step-content li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 20px;
    font-weight: bold;
}

/* 费用表格 */
.price-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.price-table th,
.price-table td {
    padding: 18px 25px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.price-table th {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.price-table th:last-child {
    text-align: center;
}

.price-table tr:hover {
    background: var(--bg-blue);
}

.price-table td:last-child {
    text-align: center;
    font-weight: 600;
    color: var(--accent-color);
    font-size: 18px;
}

.price-table .highlight-row {
    background: #FFF8E1;
}

.price-table .highlight-row td {
    font-weight: 600;
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    padding: 160px 0 80px;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></svg>');
    background-size: 80px 80px;
    opacity: 0.5;
}

.page-header-content {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    font-size: 44px;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* 面包屑导航 */
.breadcrumb {
    background: var(--bg-light);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-inner {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-light);
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.breadcrumb-current {
    color: var(--text-color);
    font-weight: 500;
}

/* 内容区域 */
.content-section {
    padding: 80px 0;
}

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

.content-text h3 {
    font-size: 32px;
    color: var(--primary-dark);
    margin-bottom: 20px;
}

.content-text p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 16px;
}

.content-list {
    list-style: none;
    margin-top: 25px;
}

.content-list li {
    padding: 12px 0;
    padding-left: 35px;
    position: relative;
    color: var(--text-color);
    font-size: 16px;
}

.content-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    width: 24px;
    height: 24px;
    background: var(--bg-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.content-image {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.content-image img {
    width: 100%;
    height: auto;
}

/* 联系表单 */
.contact-section {
    padding: 90px 0;
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contact-info h3 {
    font-size: 30px;
    color: var(--primary-dark);
    margin-bottom: 20px;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 35px;
    font-size: 16px;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 22px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-method:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-hover);
}

.contact-method-icon {
    width: 55px;
    height: 55px;
    background: var(--primary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 22px;
    flex-shrink: 0;
}

.contact-method-content h4 {
    font-size: 16px;
    margin-bottom: 5px;
    color: var(--text-color);
}

.contact-method-content p {
    color: var(--text-light);
    font-size: 14px;
    margin: 0;
}

.contact-form-wrapper {
    background: white;
    padding: 45px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.contact-form-wrapper h3 {
    font-size: 26px;
    color: var(--primary-dark);
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}

.form-group textarea {
    min-height: 130px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: 16px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.submit-btn:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(21, 101, 192, 0.3);
}

/* 页脚 */
.footer {
    background: #1a1a2e;
    color: white;
    padding: 70px 0 25px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1.5fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 22px;
}

.footer-brand-icon {
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    font-weight: bold;
}

.footer-brand-text {
    font-size: 22px;
    font-weight: bold;
}

.footer-desc {
    color: rgba(255,255,255,0.65);
    line-height: 1.8;
    margin-bottom: 22px;
    font-size: 15px;
}

.footer-title {
    font-size: 18px;
    margin-bottom: 22px;
    color: var(--primary-light);
    position: relative;
    padding-bottom: 12px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

.footer-links li {
    margin-bottom: 14px;
}

.footer-links a {
    color: rgba(255,255,255,0.65);
    transition: var(--transition);
    font-size: 15px;
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 8px;
}

.footer-contact p {
    margin-bottom: 14px;
    color: rgba(255,255,255,0.65);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 25px;
    text-align: center;
}

.copyright {
    color: rgba(255,255,255,0.45);
    font-size: 14px;
}

/* 浮动咨询按钮 */
.float-consult {
    position: fixed;
    right: 35px;
    bottom: 120px;
    z-index: 999;
}

.float-btn {
    width: 65px;
    height: 65px;
    background: linear-gradient(135deg, var(--accent-color) 0%, #FF8F00 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 26px;
    box-shadow: 0 6px 25px rgba(255, 111, 0, 0.4);
    cursor: pointer;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.float-btn:hover {
    transform: scale(1.12);
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 6px 25px rgba(255, 111, 0, 0.4); }
    50% { box-shadow: 0 6px 35px rgba(255, 111, 0, 0.6); }
}

/* 优势对比表格 */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.comparison-table th,
.comparison-table td {
    padding: 20px 25px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.comparison-table th:first-child {
    width: 25%;
}

.comparison-table tr:hover {
    background: var(--bg-blue);
}

.comparison-table .check {
    color: var(--secondary-color);
    font-size: 20px;
}

.comparison-table .cross {
    color: #e74c3c;
    font-size: 20px;
}

/* CTA区域 */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    padding: 80px 0;
    color: white;
    text-align: center;
}

.cta-section h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 35px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .solution-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .content-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .pain-points {
        grid-template-columns: 1fr;
    }

    .process-timeline::before {
        display: none;
    }

    .process-step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .step-content ul {
        text-align: left;
    }
}

@media (max-width: 768px) {
    .navbar-nav,
    .navbar-contact {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 140px 0 70px;
    }

    .hero h1 {
        font-size: 30px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-features {
        flex-direction: column;
        gap: 15px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 280px;
    }

    .section {
        padding: 55px 0;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .features-grid,
    .solution-cards,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .page-header {
        padding: 130px 0 55px;
    }

    .page-header h1 {
        font-size: 30px;
    }

    .price-table {
        font-size: 14px;
    }

    .price-table th,
    .price-table td {
        padding: 14px 12px;
    }

    .float-consult {
        right: 18px;
        bottom: 90px;
    }

    .float-btn {
        width: 55px;
        height: 55px;
        font-size: 22px;
    }
}

/* 动画效果 */
.fade-in {
    animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-up {
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mt-40 { margin-top: 40px; }

.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.mb-40 { margin-bottom: 40px; }

.hidden { display: none; }
.visible { display: block; }

.highlight {
    color: var(--accent-color);
    font-weight: 600;
}

.tag {
    display: inline-block;
    background: var(--bg-blue);
    color: var(--primary-color);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    margin-right: 10px;
    margin-bottom: 10px;
}

.tag-primary {
    background: var(--primary-color);
    color: white;
}

.tag-accent {
    background: var(--accent-color);
    color: white;
}