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

:root {
    --primary: #1a6dff;
    --primary-dark: #0d47a1;
    --secondary: #ff6b35;
    --secondary-light: #f7931e;
    --text: #1a1a1a;
    --text-secondary: #666;
    --text-light: #999;
    --bg: #fff;
    --bg-light: #f8fafc;
    --border: #e8ecf1;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-hover: 0 20px 40px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-lg: 20px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

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

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
}

.btn-outline {
    border: 1.5px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-large {
    padding: 16px 40px;
    font-size: 16px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 20px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
}

.logo-sub {
    font-size: 11px;
    color: var(--text-light);
    font-weight: 400;
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    gap: 4px;
    list-style: none;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary);
    background: rgba(26, 109, 255, 0.06);
}

.nav-menu .arrow {
    font-size: 10px;
    transition: transform 0.3s;
}

.nav-menu li:hover .arrow {
    transform: rotate(180deg);
}

/* 下拉菜单 */
.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s;
}

.nav-menu li:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
}

.dropdown a:hover {
    background: var(--bg-light);
}

.dropdown-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #e8f0fe, #d2e3fc);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.dropdown-title {
    font-weight: 600;
    color: var(--text);
}

.dropdown-desc {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 2px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
    background: none;
    border: none;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* 页面标题区域 */
.page-header {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e8f0fe 50%, #f0f7ff 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 16px;
}

.page-header p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 面包屑 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-light);
}

/* 卡片 */
.card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--border);
}

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

/* 标签 */
.tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    background: rgba(26, 109, 255, 0.08);
    color: var(--primary);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

/* 悬浮按钮 */
.float-btn {
    position: fixed;
    right: 30px;
    bottom: 100px;
    z-index: 999;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    color: white;
    padding: 14px 24px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.4);
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    border: none;
}

.float-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 107, 53, 0.5);
}

/* 弹窗 */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 520px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    background: var(--bg-light);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.modal-close:hover {
    background: var(--border);
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text);
}

.form-group label .required {
    color: var(--secondary);
    margin-left: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s;
    font-family: inherit;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 109, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-submit {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
}

.form-privacy {
    text-align: center;
    font-size: 12px;
    color: var(--text-light);
    margin-top: 15px;
}

/* 页脚 */
.footer {
    background: #0f1729;
    color: white;
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-icon {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.footer-brand .logo-text {
    color: white;
}

.footer-brand .logo-sub {
    color: rgba(255,255,255,0.5);
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(26, 109, 255, 0.2);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    color: var(--primary);
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
    color: white;
}

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

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

.footer-section ul li a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

/* 备案号样式 */
.beian-link {
    color: rgba(255,255,255,0.4);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s;
}

.beian-link:hover {
    color: rgba(255,255,255,0.7);
}

/* 隐藏公司名称 - 合规但隐蔽，颜色极暗，hover才显示 */
.company-hidden {
    color: rgba(255,255,255,0.06) !important;
    font-size: 11px !important;
    transition: color 0.3s;
    user-select: text;
}

.company-hidden:hover {
    color: rgba(255,255,255,0.5) !important;
}

/* 页脚品牌描述 - 不包含公司名称 */
.footer-brand-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    margin-bottom: 20px;
}
.footer {
    background: #0f1729;
    color: white;
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-icon {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.footer-brand .logo-text {
    color: white;
}

.footer-brand .logo-sub {
    color: rgba(255,255,255,0.5);
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(26, 109, 255, 0.2);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    color: var(--primary);
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
    color: white;
}

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

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

.footer-section ul li a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: white;
}

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

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

/* 隐藏公司名称 - 合规但隐蔽，颜色极暗，hover才显示 */
.company-hidden {
    color: rgba(255,255,255,0.06) !important;
    font-size: 11px !important;
    transition: color 0.3s;
    user-select: text;
}

.company-hidden:hover {
    color: rgba(255,255,255,0.5) !important;
}

/* 页脚品牌描述 - 不包含公司名称 */
.footer-brand-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    margin-bottom: 20px;
}

/* 响应式 */
@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }

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

    .nav-right .btn-outline {
        display: none;
    }

    .page-header h1 {
        font-size: 32px;
    }

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

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .float-btn {
        right: 15px;
        bottom: 80px;
        padding: 12px 18px;
        font-size: 13px;
    }

    .page-header {
        padding: 120px 0 60px;
    }

    .page-header h1 {
        font-size: 28px;
    }
}