/* Home page styles - Tencent Cloud Style */
/* 
 * 颜色变量已统一迁移至公共变量文件
 * @see /static/common/css/variables.css
 * 
 * 如需覆盖变量，请在此文件中使用 :root 选择器重新定义
 */

/* 导入公共变量文件 */
@import url('/static/common/css/variables.css');

/* 认证页面样式 - Tencent Cloud Style */
.auth-main {
    padding: 80px 0;
    background-color: var(--bg-tertiary);
}

.auth-wrapper {
    display: flex;
    max-width: 960px;
    margin: 0 auto;
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.auth-content {
    flex: 1;
    padding: 48px;
    background-color: var(--bg-primary);
}

.auth-header {
    margin-bottom: 36px;
    text-align: center;
}

.auth-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.auth-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.auth-sidebar {
    width: 320px;
    background: linear-gradient(135deg, var(--primary-light) 0%, rgba(30, 159, 255, 0.05) 100%);
    padding: 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-left: 1px solid var(--border-light);
}

.auth-sidebar-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 24px;
}

.auth-sidebar-features {
    list-style: none;
}

.auth-sidebar-feature {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

.auth-sidebar-feature:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.auth-sidebar-feature-icon {
    margin-right: 16px;
    color: var(--primary-color);
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-light);
    border-radius: var(--radius-sm);
}

.auth-sidebar-feature-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 6px;
}

.auth-sidebar-feature-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 表单样式 - Tencent Cloud Style */
.auth-form {
    max-width: 400px;
    margin: 0 auto;
    transition: var(--transition);
    background-color: var(--bg-primary);
}

.auth-form.form-submitting {
    opacity: 0.8;
    pointer-events: none;
}

.form-group {
    margin-bottom: 28px;
    transition: var(--transition);
}

.form-group.form-group-focused {
    transform: translateY(-2px);
}

.form-group-row {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.form-group-col {
    flex: 1;
    min-width: 200px;
}

/* 验证码布局 - 强制水平排列 */
.auth-form .form-group .captcha-wrapper {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 16px !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    box-sizing: border-box !important;
}

/* 验证码输入框 */
.auth-form .form-group .captcha-wrapper input.captcha-input {
    flex: 1 !important;
    min-width: 180px !important;
    height: 44px !important;
    margin: 0 !important;
    padding: 0 16px !important;
    display: inline-block !important;
    vertical-align: middle !important;
    box-sizing: border-box !important;
}

/* 验证码图片和刷新按钮容器 */
.auth-form .form-group .captcha-wrapper .captcha-actions {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 12px !important;
    margin: 0 !important;
    padding: 0 !important;
    height: 44px !important;
    vertical-align: middle !important;
    box-sizing: border-box !important;
}

/* 验证码图片 */
.auth-form .form-group .captcha-wrapper .captcha-actions img.captcha-image {
    display: inline-block !important;
    vertical-align: middle !important;
    margin: 0 !important;
    padding: 0 !important;
    height: 44px !important;
    width: 120px !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius) !important;
    box-sizing: border-box !important;
}

/* 刷新按钮 */
.auth-form .form-group .captcha-wrapper .captcha-actions button.captcha-refresh {
    display: inline-flex !important;
    vertical-align: middle !important;
    margin: 0 !important;
    padding: 6px 12px !important;
    height: auto !important;
    line-height: normal !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 13px !important;
    color: var(--primary-color) !important;
    background: transparent !important;
    border: none !important;
    border-radius: var(--radius) !important;
    transition: all 0.2s ease !important;
    box-sizing: border-box !important;
}

.auth-form .form-group .captcha-wrapper .captcha-actions button.captcha-refresh:hover {
    color: var(--primary-hover) !important;
    background-color: var(--primary-light) !important;
}

/* 覆盖任何可能影响布局的其他样式 */
.auth-form .form-group .captcha-wrapper * {
    float: none !important;
    clear: none !important;
    display: inline-block !important;
    vertical-align: middle !important;
    box-sizing: border-box !important;
}

/* 确保form-group内部元素正确排列 */
.auth-form .form-group {
    overflow: visible !important;
    height: auto !important;
    clear: none !important;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 10px;
    user-select: none;
}

.form-control {
    width: 100%;
    height: 44px;
    padding: 0 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--text-color);
    background-color: var(--bg-primary);
    transition: all 0.2s ease;
    box-shadow: none;
    outline: none;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
    background-color: var(--bg-primary);
}

.form-control:hover {
    border-color: var(--primary-color);
}

.form-control::placeholder {
    color: var(--text-light);
    font-size: 14px;
}

.form-hint {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 6px;
    line-height: 1.4;
}

/* 密码输入框组 - Tencent Cloud Style */
.password-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input {
    padding-right: 52px;
}

.password-toggle {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.password-toggle:hover {
    color: var(--primary-color);
    background-color: var(--primary-light);
    border-color: var(--primary-color);
}

.password-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary-light);
}

/* 按钮链接样式 */
.btn-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    background: transparent;
    border: none;
    color: var(--primary-color);
    font-size: 13px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: var(--radius);
    white-space: nowrap;
    flex-shrink: 0;
    height: auto;
    line-height: normal;
    margin: 0;
}

.btn-link:hover {
    color: var(--primary-hover);
    background-color: var(--primary-light);
    text-decoration: none;
}

/* 验证码样式 - Tencent Cloud Style */
.captcha-col {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: nowrap;
    margin: 0;
    padding: 0;
    flex-direction: row;
}

.captcha-image {
    width: 120px;
    height: 44px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    display: block;
    flex-shrink: 0;
}

.captcha-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.captcha-refresh {
    font-size: 13px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
    padding: 6px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    margin-top: 0;
    white-space: nowrap;
    flex-shrink: 0;
    background: transparent;
    border: none;
}

.captcha-refresh:hover {
    color: var(--primary-hover);
    background-color: var(--primary-light);
    text-decoration: none;
}

.captcha-refresh svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

/* 表单选项 - Tencent Cloud Style */
.form-group.form-options {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    margin-bottom: 28px !important;
    flex-wrap: nowrap !important;
    gap: 12px !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 !important;
    margin: 0 0 28px 0 !important;
    flex-direction: row !important;
    background: none !important;
    border: none !important;
}

.form-options {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    margin-bottom: 0 !important;
    flex-wrap: nowrap !important;
    gap: 12px !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 !important;
    margin: 0 !important;
    flex-direction: row !important;
}

.form-checkbox {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    margin: 0 !important;
    padding: 0 !important;
    flex-shrink: 0 !important;
}

.checkbox-label {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    font-size: 14px !important;
    color: var(--text-secondary) !important;
    cursor: pointer !important;
    user-select: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

.form-link {
    display: inline-block !important;
    margin: 0 !important;
    padding: 0 !important;
    text-align: right !important;
    flex-shrink: 0 !important;
    font-size: 14px !important;
    color: var(--primary-color) !important;
    text-decoration: none !important;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.checkbox-label input[type="checkbox"]:hover {
    box-shadow: 0 0 0 2px var(--primary-light);
}

.form-link {
    font-size: 14px;
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.2s ease;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.form-link:hover {
    color: var(--primary-hover);
    background-color: var(--primary-light);
}

/* 表单操作区 - Tencent Cloud Style */
.form-actions {
    margin-bottom: 28px;
}

/* 按钮样式 - Tencent Cloud Style */
.btn {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 28px;
    height: 44px;
    border: 1px solid var(--primary-color);
    border-radius: var(--radius);
    background-color: var(--primary-color);
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    outline: none;
    box-shadow: none;
}

.btn:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(30, 159, 255, 0.3);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(30, 159, 255, 0.2);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-light);
}

.btn-block {
    width: 100%;
    display: flex;
}

/* 按钮加载状态 - Tencent Cloud Style */
.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    animation: spin 1s linear infinite;
    font-size: 14px;
}

.btn-loading svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

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

/* 认证链接 - Tencent Cloud Style */
.auth-links {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

.auth-link-text {
    margin-right: 8px;
}

.auth-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

.auth-link:hover {
    color: var(--primary-color);
}

.auth-link.primary-link {
    color: var(--primary-color);
    font-weight: 600;
}

.auth-link.primary-link:hover {
    color: var(--primary-hover);
    background-color: var(--primary-light);
    text-decoration: none;
}

.auth-divider {
    margin: 0 12px;
    color: var(--border-color);
}

/* 错误和成功提示 - Tencent Cloud Style */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 28px;
    animation: fadeIn 0.3s ease-in-out;
    border: 1px solid transparent;
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    line-height: 1.5;
}

.alert-error {
    background-color: #fff2f0;
    border-color: #ffccc7;
    color: #f56c6c;
}

.alert-success {
    background-color: #f6ffed;
    border-color: #b7eb8f;
    color: #67c23a;
}

.alert-info {
    background-color: #e6f7ff;
    border-color: #91d5ff;
    color: #1890ff;
}

.alert-warning {
    background-color: #fff7e6;
    border-color: #ffe7ba;
    color: #e6a23c;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 表单协议 - Tencent Cloud Style */
.form-agreement {
    margin-bottom: 28px;
}

.form-agreement .checkbox-text {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.form-agreement a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.form-agreement a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* 全局样式重置 - Tencent Cloud Style */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 容器 - Tencent Cloud Style */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 链接样式 - Tencent Cloud Style */
a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

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

/* 按钮样式 - Tencent Cloud Style */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 28px;
    height: 44px;
    border: 1px solid var(--primary-color);
    border-radius: var(--radius);
    background-color: var(--primary-color);
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    outline: none;
    box-shadow: none;
}

.btn:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(30, 159, 255, 0.3);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(30, 159, 255, 0.2);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-light);
}

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

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

.btn-lg {
    height: 48px;
    padding: 0 40px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
    display: flex;
}

.btn-white-outline {
    background-color: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.6);
}

.btn-white-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-color: var(--white);
    box-shadow: 0 2px 8px rgba(255, 255, 255, 0.2);
}

/* 卡片样式 - Tencent Cloud Style */
.card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 32px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--border-light);
    transform: translateY(-2px);
    border-top-color: var(--primary-color);
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 16px;
    color: #000;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 36px;
    color: #1b1f23;
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
}

.section-footer {
    text-align: center;
    margin-top: 48px;
}

/* 头部导航 - 初始透明，滚动后不透明 */
.header {
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

/* 鼠标悬停时显示深色背景 */
.header:hover {
    background: rgba(27, 33, 46, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* 滚动后变为不透明深色背景 */
.header.scrolled {
    background: rgba(27, 33, 46, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

.header .container {
    max-width: 100%;
    padding: 0 20px;
    position: relative;
}

.header-content {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: flex-start !important;
    padding: 0;
    margin: 0 auto;
    max-width: 1240px;
    position: relative;
}

.logo a {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin-left: 0;
    transition: all 0.3s ease;
}

.logo-icon-wrapper {
    display: flex;
    align-items: center;
    background: var(--primary-color);
    padding: 3px 6px;
    border-radius: 3px;
    margin-right: 8px;
}

.logo-icon-wrapper svg {
    width: 16px;
    height: 16px;
}

.logo-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    letter-spacing: -0.2px;
    white-space: nowrap;
}

.logo img {
    height: 24px;
    width: auto;
}

.nav {
    margin-left: 40px;
}

.nav-list {
    display: flex;
    list-style: none;
}

.nav-item {
    margin: 0;
}

.nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    font-size: 14px;
    height: 64px;
    line-height: 64px;
    padding: 0 16px;
    display: block;
    position: relative;
    white-space: nowrap;
    transition: all 0.3s ease;
    text-decoration: none;
}

.nav-link:hover, .nav-link.active {
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.08);
}

/* 非下拉菜单的导航链接显示底部指示条 */
.nav-item:not(.dropdown) .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-item:not(.dropdown) .nav-link:hover::after,
.nav-item:not(.dropdown) .nav-link.active::after {
    width: calc(100% - 32px);
}

/* 下拉菜单样式 */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    cursor: pointer;
}

/* 下拉箭头 - 使用span元素而非伪元素 */
.dropdown-arrow {
    display: inline-block;
    margin-left: 6px;
    width: 0;
    height: 0;
    border-top: 5px solid rgba(255, 255, 255, 0.7);
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    vertical-align: middle;
    transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-arrow,
.dropdown.open .dropdown-arrow {
    transform: rotate(180deg);
    border-top-color: var(--white);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    display: none;
    min-width: 200px;
    margin: 0;
    padding: 8px 0;
    background-color: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.2s ease;
    opacity: 0;
    transform: translateY(-8px);
}

.dropdown:hover .dropdown-menu,
.dropdown.open .dropdown-menu {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.dropdown-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dropdown-menu-item {
    display: block;
    padding: 10px 20px;
    color: #333333;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.dropdown-menu-item:hover {
    background-color: #f5f7fa;
    color: var(--primary-color);
}

/* 响应式下拉菜单 */
@media (max-width: 768px) {
    .dropdown-menu {
        position: static;
        box-shadow: none;
        border: 0;
        background-color: #1b212e;
    }
    
    .dropdown-menu-item {
        color: rgba(255, 255, 255, 0.85);
        padding: 12px 16px;
    }
    
    .dropdown-menu-item:hover {
        background-color: rgba(255, 255, 255, 0.05);
        color: var(--white);
    }
}

.badge-hot {
    display: inline-block;
    background: #ff5500;
    color: #fff;
    font-size: 10px;
    padding: 0 4px;
    height: 14px;
    line-height: 14px;
    border-radius: 2px;
    margin-left: 4px;
    vertical-align: middle;
    font-weight: bold;
    transform: scale(0.9);
}

.header-actions {
    display: flex;
    align-items: center;
    margin-left: auto !important;
}

.header-actions .nav-link {
    height: 52px;
    line-height: 52px;
    padding: 0 16px;
    margin-right: 8px;
}

.header-actions .btn {
    height: 32px;
    padding: 0 16px;
    font-size: 13px;
}

/* 轮播图样式优化 */
.banner {
    background-color: #000;
    color: var(--white);
    overflow: hidden;
    position: relative;
}

.banner-item {
    height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    transition: all 0.6s cubic-bezier(0.38, 0, 0.24, 1);
}

.banner-image-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.banner-image-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.38, 0, 0.24, 1);
}

.banner-swiper .swiper-slide:hover .banner-image-bg img {
    transform: scale(1.05);
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(0, 10, 30, 0.8) 0%, rgba(0, 10, 30, 0.4) 50%, transparent 100%);
    z-index: 2;
    transition: all 0.6s cubic-bezier(0.38, 0, 0.24, 1);
}

.banner .container {
    position: relative;
    z-index: 3;
}

.banner-content {
    max-width: 600px;
    text-align: left;
    animation: bannerFadeIn 0.8s ease-out;
}

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

.banner-title {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
    color: var(--white);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    letter-spacing: -0.5px;
    transition: all 0.3s ease;
}

.banner-description {
    font-size: 20px;
    margin-bottom: 48px;
    color: var(--white);
    line-height: 1.6;
    opacity: 0.9;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
    max-width: 540px;
    transition: all 0.3s ease;
}

.banner-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.banner-actions .btn {
    padding: 14px 40px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.banner-actions .btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.banner-actions .btn:hover::after {
    width: 300px;
    height: 300px;
}

.banner-actions .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

/* 导航项溢出处理 - 更多菜单 */
.nav-more {
    position: relative;
    display: none;
}

.nav-more-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-more-toggle::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-top: 4px solid rgba(255, 255, 255, 0.6);
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    vertical-align: middle;
    transition: transform 0.2s ease;
}

.nav-more:hover .nav-more-toggle::after,
.nav-more.open .nav-more-toggle::after {
    transform: rotate(180deg);
}

.nav-more-menu {
    position: absolute;
    top: 100%;
    right: 0;
    z-index: 1000;
    display: none;
    min-width: 160px;
    margin: 0;
    padding: 8px 0;
    background-color: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.2s ease;
    opacity: 0;
    transform: translateY(-8px);
}

.nav-more:hover .nav-more-menu,
.nav-more.open .nav-more-menu {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.nav-more-item {
    display: block;
    padding: 10px 20px;
    color: #333333;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.nav-more-item:hover {
    background-color: #f5f7fa;
    color: var(--primary-color);
}

/* 响应式设计 */

/* 大屏幕 - 默认显示全部导航项 */
@media (min-width: 1201px) {
    .nav-more {
        display: none !important;
    }
}

/* 中等屏幕 - 导航栏优化，显示更多菜单 */
@media (max-width: 1400px) {
    .banner-item {
        height: 450px;
    }
    
    .banner-title {
        font-size: 44px;
    }
    
    .banner-description {
        font-size: 18px;
        margin-bottom: 40px;
    }
    
    /* 导航栏中等屏幕适配 */
    .header .container {
        padding: 0 16px;
    }
    
    .nav {
        margin-left: 24px;
    }
    
    .nav-link {
        padding: 0 12px;
        font-size: 13px;
    }
    
    .header-actions .nav-link {
        padding: 0 12px;
    }
    
    .header-actions .btn {
        padding: 0 12px;
        font-size: 12px;
    }
}

/* 中等屏幕 - 隐藏次要导航项，显示更多菜单 */
@media (max-width: 1200px) {
    .nav {
        margin-left: 16px;
    }
    
    .nav-link {
        padding: 0 10px;
        font-size: 13px;
    }
    
    /* 隐藏次要导航项 */
    .nav-item.secondary {
        display: none !important;
    }
    
    /* 隐藏更多导航项 */
    .nav-item.tertiary {
        display: none !important;
    }
    
    /* 显示更多菜单 */
    .nav-list .nav-more {
        display: inline-block !important;
    }
    
    .logo-text {
        font-size: 14px;
        max-width: 120px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}

/* 中小屏幕 - 进一步压缩导航 */
@media (max-width: 1100px) and (min-width: 993px) {
    .nav {
        margin-left: 12px;
    }
    
    .nav-link {
        padding: 0 8px;
        font-size: 13px;
    }
}

/* 平板及以下 - 切换到移动端导航 */
@media (max-width: 992px) {
    /* 移动端头部始终不透明，避免透明导航与内容重叠 */
    .header {
        background: rgba(27, 33, 46, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        border-bottom-color: rgba(255, 255, 255, 0.08);
    }

    .header:hover {
        background: rgba(27, 33, 46, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }

    .banner-item {
        height: 400px;
    }
    
    .banner-title {
        font-size: 36px;
        margin-bottom: 20px;
    }
    
    .banner-description {
        font-size: 16px;
        margin-bottom: 32px;
    }
    
    .banner-overlay {
        background: linear-gradient(90deg, rgba(0, 10, 30, 0.7) 0%, rgba(0, 10, 30, 0.3) 50%, transparent 100%);
    }
    
    /* 平板导航栏 - 显示移动端菜单按钮 */
    .mobile-nav-toggle {
        display: flex !important;
    }
    
    /* 隐藏PC导航 */
    .nav {
        display: none !important;
    }
    
    /* 隐藏更多菜单 */
    .nav-more {
        display: none !important;
    }
    
    .header-actions {
        display: none !important;
    }
    
    .header-content {
        justify-content: flex-start;
    }
    
    .logo {
        margin-left: 12px;
    }
}

@media (max-width: 768px) {
    .banner-item {
        height: 350px;
        text-align: center;
    }
    
    .banner-title {
        font-size: 28px;
        margin-bottom: 16px;
    }
    
    .banner-description {
        font-size: 14px;
        margin-bottom: 24px;
    }
    
    .banner-content {
        max-width: 100%;
        text-align: center;
    }
    
    .banner-actions {
        justify-content: center;
        gap: 12px;
    }
    
    .banner-actions .btn {
        padding: 0 24px;
        height: 40px;
        font-size: 14px;
    }
    
    .banner-overlay {
        background: linear-gradient(180deg, rgba(0, 10, 30, 0.7) 0%, rgba(0, 10, 30, 0.4) 100%);
    }
}

@media (max-width: 576px) {
    .banner-item {
        height: 300px;
    }
    
    .banner-title {
        font-size: 24px;
        margin-bottom: 12px;
    }
    
    .banner-description {
        font-size: 13px;
        margin-bottom: 20px;
    }
    
    .banner-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .banner-actions .btn {
        width: 100%;
        max-width: 200px;
    }
}

/* 轮播图分页器 */
.banner-swiper .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.3);
    opacity: 1;
    margin: 0 6px !important;
    transition: all 0.3s cubic-bezier(0.38, 0, 0.24, 1);
    border-radius: 50%;
}

.banner-swiper .swiper-pagination-bullet-active {
    background: var(--white);
    width: 24px;
    border-radius: 4px;
    transition: all 0.3s cubic-bezier(0.38, 0, 0.24, 1);
}

/* 轮播图导航按钮 */
.banner-swiper .swiper-button-prev,
.banner-swiper .swiper-button-next {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--white);
    transition: all 0.3s cubic-bezier(0.38, 0, 0.24, 1);
    opacity: 0;
    transform: translateY(10px);
}

.banner-swiper:hover .swiper-button-prev,
.banner-swiper:hover .swiper-button-next {
    opacity: 1;
    transform: translateY(0);
}

.banner-swiper .swiper-button-prev:hover,
.banner-swiper .swiper-button-next:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.banner-swiper .swiper-button-prev::after,
.banner-swiper .swiper-button-next::after {
    font-size: 18px;
    font-weight: 700;
}

/* 导航按钮位置调整 */
.banner-swiper .swiper-button-prev {
    left: 30px;
}

.banner-swiper .swiper-button-next {
    right: 30px;
}

/* 响应式导航按钮 */
@media (max-width: 768px) {
    .banner-swiper .swiper-button-prev,
    .banner-swiper .swiper-button-next {
        width: 40px;
        height: 40px;
        opacity: 1;
        background: rgba(255, 255, 255, 0.2);
    }
    
    .banner-swiper .swiper-button-prev {
        left: 15px;
    }
    
    .banner-swiper .swiper-button-next {
        right: 15px;
    }
    
    .banner-swiper .swiper-button-prev::after,
    .banner-swiper .swiper-button-next::after {
        font-size: 16px;
    }
}

@media (max-width: 576px) {
    .banner-swiper .swiper-button-prev,
    .banner-swiper .swiper-button-next {
        width: 36px;
        height: 36px;
    }
    
    .banner-swiper .swiper-button-prev {
        left: 10px;
    }
    
    .banner-swiper .swiper-button-next {
        right: 10px;
    }
    
    .banner-swiper .swiper-button-prev::after,
    .banner-swiper .swiper-button-next::after {
        font-size: 14px;
    }
}

/* 产品展示优化 */
.products {
    padding: var(--section-padding);
    background-color: #fff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-item {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 12px;
    border: 1px solid #EBEDF0;
    padding: 32px 24px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.product-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.product-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--primary-color);
}

.product-item:hover::before {
    transform: scaleX(1);
}

.product-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--promo-gradient);
    color: white;
    padding: 4px 12px;
    font-size: 12px;
    border-radius: 4px;
    z-index: 1;
    font-weight: 600;
}

.product-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #E8F3FF, #006EFF);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: var(--transition);
}

.product-item:hover .product-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 24px rgba(0, 110, 255, 0.3);
}

.product-name {
    font-size: 18px;
    margin-bottom: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.product-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 24px;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    margin-bottom: 20px;
    padding-top: 20px;
    border-top: 1px solid #EBEDF0;
}

.price-label {
    font-size: 13px;
    color: var(--text-muted);
    display: block;
    margin-bottom: 4px;
}

.price-value {
    display: flex;
    align-items: baseline;
}

.price-symbol {
    font-size: 16px;
    color: var(--price-color);
    font-weight: 600;
}

.price-amount {
    font-size: 28px;
    color: var(--price-color);
    font-weight: 700;
    margin: 0 2px;
}

.price-unit {
    font-size: 14px;
    color: var(--text-muted);
}

.product-action {
    margin-top: auto;
}

.product-action .btn {
    width: 100%;
    padding: 12px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.product-action .btn:hover {
    transform: translateY(-2px);
}

/* 产品特色优化 */
.features {
    padding: var(--section-padding);
    background-color: #f5f7fa;
}

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

.feature-item {
    text-align: center;
    background: #fff;
    border-radius: 12px;
    padding: 40px 30px;
    transition: all 0.3s ease;
}

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

.feature-icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, #E8F3FF, #006EFF);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.feature-item:hover .feature-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 24px rgba(0, 110, 255, 0.3);
}

.feature-icon-wrapper svg {
    transition: all 0.3s ease;
}

.feature-item:hover .feature-icon-wrapper svg {
    transform: scale(1.1);
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-description {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 新闻动态 */
.news {
    padding: var(--section-padding);
    background-color: #fff;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-item {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.news-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.news-item:hover .news-image img {
    transform: scale(1.05);
}

.news-info {
    padding: 24px;
    flex-grow: 1;
}

.news-date {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 客户案例 */
.cases {
    padding: var(--section-padding);
    background-color: #f5f7fa;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.case-item {
    text-align: left;
    background: #fff;
    border-radius: 12px;
    padding: 32px;
    transition: all 0.3s ease;
    border: 1px solid #EBEDF0;
}

.case-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--primary-color);
}

.case-logo {
    height: 48px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
}

.case-logo img {
    max-height: 100%;
    max-width: 120px;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: var(--transition);
}

.case-item:hover .case-logo img {
    filter: grayscale(0);
    opacity: 1;
}

.case-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.case-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.case-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.case-link:hover {
    gap: 8px;
    color: var(--primary-hover);
}

/* 联系我们 */
.contact {
    padding: var(--section-padding);
    background-color: #f5f7fa;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.contact-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #fff;
    border-radius: 12px;
    padding: 40px 30px;
    transition: all 0.3s ease;
    border: 1px solid #EBEDF0;
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--primary-color);
}

.contact-icon-wrapper {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #E8F3FF, #006EFF);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: var(--transition);
}

.contact-card:hover .contact-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 24px rgba(0, 110, 255, 0.3);
}

.contact-card:hover .contact-icon-wrapper svg path {
    stroke: var(--white);
}

.contact-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.contact-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.contact-link {
    font-size: 24px;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-link:hover {
    color: var(--primary-hover);
}

.contact-link.phone:hover {
    color: var(--primary-hover);
}

.contact-card .btn {
    margin-top: auto;
    padding: 12px 32px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.contact-card .btn:hover {
    transform: translateY(-2px);
}

.form-group input,
.form-group select, 
.form-group textarea {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    background-color: var(--white);
    transition: var(--transition);
    outline: none;
    color: var(--text-color);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 110, 255, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
    opacity: 0.6;
}

.form-submit {
    text-align: center;
}

/* 底部优化 */
.footer {
    background-color: #000a1e;
    color: rgba(255, 255, 255, 0.6);
    padding: 80px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: 40px;
    padding-bottom: 64px;
    max-width: 1240px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}

.footer-brand {
    padding-right: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    color: var(--white);
    font-size: 20px;
    font-weight: 600;
}

.footer-logo img {
    height: 32px;
    width: auto;
}

.footer-description {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 32px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-social-links {
    display: flex;
    gap: 12px;
}

.footer-social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: rgba(255, 255, 255, 0.7);
}

.footer-social-link:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-4px);
}

.footer-section h3 {
    color: var(--white);
    font-size: 16px;
    margin-bottom: 24px;
    font-weight: 600;
}

.footer-links-list {
    list-style: none;
}

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

.footer-links-list li a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    transition: var(--transition);
    text-decoration: none;
}

.footer-links-list li a:hover {
    color: var(--white);
    padding-left: 4px;
}

.footer-qrcode-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-qrcode {
    width: 120px;
    height: 120px;
    background: var(--white);
    padding: 8px;
    border-radius: 8px;
    margin-bottom: 12px;
}

.footer-qrcode img {
    width: 100%;
    height: 100%;
}

.footer-qrcode-text {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 32px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    max-width: 1240px;
    margin: 0 auto;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    transition: var(--transition);
}

.footer-bottom-links a:hover {
    color: var(--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);
    font-size: 14px;
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 32px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

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

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

/* 移动端导航样式 */
.mobile-nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-right: 16px;
    z-index: 1001;
    position: relative;
    transition: all 0.3s ease;
    border-radius: 4px;
    order: -1; /* 将汉堡菜单放在logo之前 */
}

.mobile-nav-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.mobile-nav-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 110, 255, 0.5);
}

.mobile-nav-toggle-icon {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--white);
    position: relative;
    transition: all 0.3s ease;
    transform-origin: center center;
}

.mobile-nav-toggle-icon::before,
.mobile-nav-toggle-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--white);
    transition: all 0.3s ease;
    transform-origin: center center;
}

.mobile-nav-toggle-icon::before {
    top: -8px;
    left: 0;
}

.mobile-nav-toggle-icon::after {
    bottom: -8px;
    left: 0;
}

/* 激活状态 - 转换为X形 */
.mobile-nav-toggle.active .mobile-nav-toggle-icon {
    background-color: transparent;
}

.mobile-nav-toggle.active .mobile-nav-toggle-icon::before {
    transform: rotate(45deg);
    top: 0;
}

.mobile-nav-toggle.active .mobile-nav-toggle-icon::after {
    transform: rotate(-45deg);
    bottom: 0;
}

/* 调整header-content的样式，为绝对定位的汉堡菜单留出空间 */
.header-content {
    position: relative;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: flex-start !important;
    padding-left: 0; /* 移除左边的padding，让logo靠近汉堡菜单 */
}

/* 在桌面端恢复默认padding */
@media (min-width: 769px) {
    .header-content {
        padding-left: 0;
    }
}

/* 移动端导航遮罩与侧栏（独立于 header，避免被裁剪） */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1100;
    opacity: 0;
    transition: opacity 0.3s ease;
    -webkit-tap-highlight-color: transparent;
}

.mobile-nav-overlay.active {
    display: block;
    opacity: 1;
}

.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: min(320px, 86vw);
    max-width: 100%;
    height: 100%;
    height: 100dvh;
    background-color: var(--white);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
    z-index: 1101;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    visibility: hidden;
    pointer-events: none;
}

.mobile-nav.active {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
}

/* 移动端导航头部 - 添加关闭按钮 */
.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px; /* 调整内边距，使其更均衡 */
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0; /* 移除底部margin，确保与导航列表无缝连接 */
    background-color: var(--white); /* 确保头部背景色一致 */
    position: sticky;
    top: 0;
    z-index: 1003; /* 确保头部在滚动时保持在顶部 */
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05); /* 添加轻微阴影，增强层次感 */
}

.mobile-nav-header-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    margin: 0; /* 移除默认margin */
    line-height: 1.2;
}

/* 移动端关闭按钮 */
.mobile-nav-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px; /* 调整宽度，使其更适合触摸 */
    height: 36px; /* 调整高度，使其更适合触摸 */
    background: var(--primary-light); /* 添加浅色背景，增强可点击感 */
    border: 1px solid var(--primary-color); /* 使用主色调边框 */
    border-radius: 6px; /* 增大圆角，使其更柔和 */
    cursor: pointer;
    transition: all 0.2s ease; /* 优化过渡效果 */
    color: var(--primary-color); /* 使用主色调 */
    padding: 0;
}

.mobile-nav-close:hover {
    background-color: var(--primary-color); /* 悬停时使用主色调背景 */
    border-color: var(--primary-color);
    color: var(--white); /* 悬停时文字变白 */
    transform: scale(1.05); /* 轻微放大，增强交互反馈 */
    box-shadow: 0 2px 8px rgba(0, 110, 255, 0.2); /* 添加阴影，增强层次感 */
}

.mobile-nav-close:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 110, 255, 0.3); /* 聚焦时显示轮廓，增强可访问性 */
}

.mobile-nav-close-icon {
    display: block;
    width: 18px; /* 调整图标大小 */
    height: 18px;
    position: relative;
}

.mobile-nav-close-icon::before,
.mobile-nav-close-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: currentColor; /* 使用当前颜色，便于主题切换 */
    top: 50%;
    left: 0;
    transition: all 0.2s ease;
}

.mobile-nav-close-icon::before {
    transform: translateY(-50%) rotate(45deg);
}

.mobile-nav-close-icon::after {
    transform: translateY(-50%) rotate(-45deg);
}

.mobile-nav-close:hover .mobile-nav-close-icon::before,
.mobile-nav-close:hover .mobile-nav-close-icon::after {
    background-color: currentColor;
}

.mobile-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    background-color: var(--white);
    flex: 1 1 auto;
}

.mobile-nav-item {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}

.mobile-nav-item:hover {
    background-color: var(--secondary-color); /* 悬停时显示背景色 */
}

.mobile-nav-link {
    display: block;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
    transition: all 0.2s ease;
    text-decoration: none;
    line-height: 1.5;
}

.mobile-nav-link:hover {
    background-color: transparent; /* 移除hover时的背景色，避免与父元素冲突 */
    color: var(--primary-color); /* 悬停时使用主色调 */
    padding-left: 28px; /* 轻微右移，增强交互反馈 */
}

/* 移动端下拉菜单 */
.mobile-dropdown {
    position: relative;
    transition: all 0.2s ease;
}

.mobile-dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    text-align: left;
    border: none;
    background: none;
    font: inherit;
    cursor: pointer;
    box-sizing: border-box;
}

.mobile-dropdown-toggle::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-top: 4px solid var(--text-color);
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    vertical-align: middle;
    transition: transform 0.2s ease;
    margin-left: 8px;
}

.mobile-dropdown.open .mobile-dropdown-toggle::after {
    transform: rotate(180deg);
}

.mobile-dropdown-menu {
    display: none;
    background-color: var(--secondary-color);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s ease;
}

.mobile-dropdown.open .mobile-dropdown-menu {
    display: block;
    animation: fadeInDown 0.3s ease;
}

/* 下拉菜单动画 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-dropdown-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-dropdown-menu-item {
    display: block;
    padding: 12px 24px 12px 48px; /* 调整内边距，增强层级感 */
    font-size: 14px;
    color: var(--text-color);
    transition: all 0.2s ease;
    text-decoration: none;
    line-height: 1.5;
    background-color: var(--secondary-color);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05); /* 添加细微分隔线 */
}

.mobile-dropdown-menu-item:hover {
    background-color: var(--primary-light); /* 悬停时使用主色调浅色背景 */
    color: var(--primary-color); /* 悬停时使用主色调 */
    padding-left: 52px; /* 轻微右移，增强交互反馈 */
}

.mobile-dropdown-menu-item:last-child {
    border-bottom: none;
}

/* 移动端底部：登录/用户 */
.mobile-nav-footer {
    flex-shrink: 0;
    border-top: 1px solid var(--border-color);
    background-color: var(--white);
}

.mobile-nav-footer.mobile-dropdown .mobile-dropdown-toggle {
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
}

.mobile-nav-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 24px;
    background-color: var(--secondary-color);
    transition: all 0.2s ease;
}

.mobile-nav-actions .mobile-nav-link {
    padding: 0;
    background: transparent;
    color: var(--primary-color);
    text-align: center;
    font-weight: 600;
}

.mobile-nav-actions .btn {
    margin-top: 8px;
    transition: all 0.2s ease;
}

.mobile-nav-actions .btn:hover {
    transform: translateY(-1px); /* 轻微上浮，增强交互反馈 */
    box-shadow: 0 4px 12px rgba(0, 110, 255, 0.2); /* 添加阴影，增强层次感 */
}

/* 优化滚动条样式 */
.mobile-nav::-webkit-scrollbar {
    width: 6px;
}

.mobile-nav::-webkit-scrollbar-track {
    background: var(--secondary-color);
}

.mobile-nav::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.mobile-nav::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

body.mobile-nav-open {
    overflow: hidden;
    touch-action: none;
}

/* 响应式优化 */
@media (max-width: 768px) {
    .mobile-nav-header {
        padding: 12px 20px; /* 调整内边距，适应小屏幕 */
    }
    
    .mobile-nav-header-title {
        font-size: 16px; /* 调整字体大小，适应小屏幕 */
    }
    
    .mobile-nav-link {
        padding: 14px 20px; /* 调整内边距，适应小屏幕 */
        font-size: 15px; /* 调整字体大小，适应小屏幕 */
    }
    
    .mobile-dropdown-menu-item {
        padding: 10px 20px 10px 40px; /* 调整内边距，适应小屏幕 */
        font-size: 13px; /* 调整字体大小，适应小屏幕 */
    }
    
    .mobile-nav-actions {
        padding: 20px;
    }
}

.mobile-nav-actions .mobile-nav-link {
    padding: 0;
    background: transparent;
    color: var(--primary-color);
}

.mobile-nav-actions .btn {
    margin-top: 8px;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .banner-title {
        font-size: 36px;
    }
    
    .products-grid, .news-grid, .cases-grid, .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: flex !important;
    }
    
    .nav {
        display: none !important;
    }
    
    .nav-more {
        display: none !important;
    }
    
    .header-actions {
        display: none !important;
    }
    
    .section-padding {
        padding: 60px 0;
    }

    .banner-item {
        height: 400px;
    }

    .banner-title {
        font-size: 28px;
    }
    
    .products-grid, .features-grid, .news-grid, .cases-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .header {
        position: sticky;
        top: 0;
        width: 100%;
        max-width: 100vw;
        overflow: visible;
    }
    
    .header .container {
        width: 100%;
        max-width: 100vw;
        padding: 0 12px;
        overflow: visible;
    }
    
    .header-content {
        height: 56px;
        width: 100%;
        max-width: 100%;
        overflow: visible;
        display: flex;
        align-items: center;
        justify-content: flex-start;
        padding: 0;
        margin: 0;
    }
    
    .mobile-nav-toggle {
        flex-shrink: 0;
        margin-right: 12px;
    }
    
    .logo {
        flex-shrink: 0;
        margin-right: 0;
    }
    
    .logo a {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    .logo-text {
        font-size: 14px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 150px;
    }
    
    .logo img {
        height: 20px;
        width: auto;
        max-width: 120px;
    }

    .contact-form-wrapper {
        padding: 32px 20px;
    }

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

    .form-group.full-width {
        grid-column: span 1;
    }
}

/* 页面通用样式 */
.page-header {
    text-align: center;
    padding: 80px 0;
    background-color: var(--white);
}

/* 动画效果 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.38, 0, 0.24, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 主内容区 */
.main {
    background-color: var(--white);
}

/* 响应式图片 */
img {
    max-width: 100%;
    height: auto;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 表单元素样式 */
input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

/* 按钮通用样式 */
button {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
}

/* 列表样式 */
ul, ol {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* 认证页面响应式设计 */
@media (max-width: 992px) {
    .auth-wrapper {
        flex-direction: column;
    }
    
    .auth-sidebar {
        width: 100%;
        padding: 32px 48px;
    }
    
    .auth-content {
        padding: 48px 48px 32px;
    }
}

@media (max-width: 768px) {
    .auth-main {
        padding: 40px 0;
    }
    
    .auth-wrapper {
        border-radius: 0;
        box-shadow: none;
    }
    
    .auth-content {
        padding: 32px 24px;
    }
    
    .auth-sidebar {
        padding: 32px 24px;
    }
    
    .auth-title {
        font-size: 20px;
    }
    
    .auth-subtitle {
        font-size: 13px;
    }
    
    .form-group-row {
        flex-direction: row;
        gap: 12px;
        align-items: flex-start;
        flex-wrap: nowrap;
    }
    
    .form-group-row .form-group-col {
        margin: 0;
        padding: 0;
    }
    
    .form-group-row .form-group-col:first-child {
        flex: 1;
        min-width: 120px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    
    .form-group-row .form-group-col:last-child {
        flex: 0 0 auto;
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
        margin-top: 32px; /* 对齐验证码图片与输入框中间 */
    }
    
    .captcha-col {
        flex-direction: row;
        align-items: center;
        gap: 8px;
        justify-content: flex-start;
        flex-wrap: nowrap;
    }
    
    .captcha-image {
        width: 100px;
        max-width: 100px;
        height: 44px;
        margin: 0;
        flex-shrink: 0;
    }
    
    .captcha-refresh {
        margin: 0;
        padding: 4px 8px;
        font-size: 12px;
        flex-shrink: 0;
    }
    
    .captcha-refresh svg {
        width: 14px;
        height: 14px;
    }
    
    .form-control {
        height: 44px;
        padding: 0 16px;
        font-size: 15px;
    }
    
    .form-label {
        font-size: 15px;
    }
    
    .btn {
        height: 44px;
        font-size: 15px;
        padding: 0 28px;
    }
    
    .auth-links {
        font-size: 15px;
    }
    
    .form-hint {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .auth-main {
        padding: 20px 0;
    }
    
    .auth-content {
        padding: 24px 16px;
    }
    
    .auth-sidebar {
        padding: 24px 16px;
    }
    
    .auth-title {
        font-size: 18px;
    }
    
    .auth-subtitle {
        font-size: 12px;
    }
    
    .form-group {
        margin-bottom: 20px;
    }
    
    /* 验证码在极小屏幕下的布局 */
    .form-group-row {
        flex-direction: row;
        gap: 8px;
        align-items: flex-start;
        flex-wrap: nowrap;
    }
    
    .form-group-row .form-group-col {
        margin: 0;
        padding: 0;
    }
    
    .form-group-row .form-group-col:first-child {
        flex: 1;
        min-width: 100px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    
    .form-group-row .form-group-col:last-child {
        flex: 0 0 auto;
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
        margin-top: 32px; /* 对齐验证码图片与输入框中间 */
    }
    
    .captcha-col {
        display: flex;
        align-items: center;
        gap: 6px;
        justify-content: flex-start;
        flex-wrap: nowrap;
        margin: 0;
        padding: 0;
    }
    
    .captcha-image {
        width: 90px;
        max-width: 90px;
        height: 42px;
        margin: 0;
    }
    
    .captcha-refresh {
        margin: 0;
        padding: 3px 6px;
        font-size: 11px;
    }
    
    .captcha-refresh svg {
        width: 12px;
        height: 12px;
    }
    
    .form-control {
        height: 42px;
        font-size: 14px;
    }
    
    .btn {
        height: 42px;
        font-size: 14px;
        padding: 0 24px;
    }
    
    .auth-form {
        max-width: 100%;
    }
    
    .auth-sidebar-feature {
        margin-bottom: 12px;
    }
    
    .auth-sidebar-feature-title {
        font-size: 13px;
    }
    
    .auth-sidebar-feature-description {
        font-size: 11px;
    }
}

/* ============================================
 * 关于页面样式
 * ============================================ */

/* 关于页面 Hero */
.about-hero {
    background: linear-gradient(135deg, #006EFF 0%, #005AD4 100%);
    padding: 100px 0;
    text-align: center;
    color: #fff;
}

.about-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.about-hero-subtitle {
    font-size: 20px;
    opacity: 0.9;
    line-height: 1.6;
}

/* 公司简介 */
.about-intro {
    padding: 80px 0;
    background: #fff;
}

.about-intro-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

.about-intro-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}

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

.about-intro-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.about-stat-item {
    text-align: center;
    padding: 24px;
    background: #f5f7fa;
    border-radius: 12px;
}

.about-stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.about-stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 使命愿景 */
.about-mission {
    padding: 80px 0;
    background: #f5f7fa;
}

.about-mission-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

.about-mission-item {
    background: #fff;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s ease;
}

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

.about-mission-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, #E8F3FF, #006EFF);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-mission-item h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.about-mission-item p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 核心优势 */
.about-features {
    padding: 80px 0;
    background: #fff;
}

.about-features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

.about-feature-item {
    text-align: center;
    padding: 40px 30px;
    background: #fff;
    border-radius: 12px;
    border: 1px solid #EBEDF0;
    transition: all 0.3s ease;
}

.about-feature-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--primary-color);
}

.about-feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, #E8F3FF, #006EFF);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.about-feature-item:hover .about-feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 24px rgba(0, 110, 255, 0.3);
}

.about-feature-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.about-feature-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 发展历程 */
.about-timeline {
    padding: 80px 0;
    background: #f5f7fa;
}

.timeline-list {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 40px;
}

.timeline-list::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-color), #E8F3FF);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -32px;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 0 0 3px var(--primary-color);
}

.timeline-content {
    background: #fff;
    border-radius: 12px;
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

.timeline-year {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-light);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.timeline-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 联系我们 */
.about-contact {
    padding: 80px 0;
    background: linear-gradient(135deg, #006EFF 0%, #005AD4 100%);
    color: #fff;
    text-align: center;
}

.about-contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.about-contact h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.about-contact p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 40px;
}

.about-contact-info {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.about-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 500;
}

.about-contact-item svg {
    opacity: 0.8;
}

/* 响应式适配 - 关于页面 */
@media (max-width: 992px) {
    .about-hero {
        padding: 60px 0;
    }

    .about-hero-title {
        font-size: 36px;
    }

    .about-intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-intro-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .about-mission-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .about-hero {
        padding: 50px 0;
    }

    .about-hero-title {
        font-size: 28px;
    }

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

    .about-intro-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .about-stat-number {
        font-size: 24px;
    }

    .about-features-grid {
        grid-template-columns: 1fr;
    }

    .about-contact-info {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
}

/* ============================================
 * 新增区域样式 - 2026-05-28
 * ============================================ */

/* 数据亮点区 */
.stats-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #fff 100%);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 110, 255, 0.03) 0%, transparent 50%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.stat-item {
    text-align: center;
    padding: 30px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    background: #fff;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 8px;
    font-variant-numeric: tabular-nums;
}

.stat-suffix {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-color);
}

.stat-label {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 解决方案区 - 已替换为轮播式 */

/* CTA 行动号召区 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #006EFF 0%, #005AD4 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: ctaRotate 20s linear infinite;
}

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

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 20px;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.3;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    line-height: 1.6;
}

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

.cta-buttons .btn {
    padding: 16px 48px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    min-width: 160px;
}

.cta-buttons .btn-primary {
    background: #fff;
    color: var(--primary-color);
    border: 2px solid #fff;
}

.cta-buttons .btn-primary:hover {
    background: #f5f7fa;
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.cta-buttons .btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.cta-buttons .btn-outline:hover {
    background: #fff;
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

/* 响应式适配 - 数据亮点区 */
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .stat-number {
        font-size: 36px;
    }

    .stat-suffix {
        font-size: 20px;
    }
}

@media (max-width: 576px) {
    .stats-section {
        padding: 60px 0;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .stat-item {
        padding: 20px;
    }

    .stat-number {
        font-size: 28px;
    }

    .stat-suffix {
        font-size: 16px;
    }

    .stat-label {
        font-size: 14px;
    }
}

/* 响应式适配 - 解决方案区 */
@media (max-width: 768px) {
    .auto {
        min-width: auto;
        max-width: 100%;
        padding: 0 20px;
    }

    .solution-showcase {
        height: auto;
        min-height: 400px;
    }

    .solution-showcase-content {
        flex-direction: column;
        width: 100%;
        min-width: auto;
        max-width: 100%;
        padding: 40px 20px;
    }

    .solution-showcase-left {
        padding-right: 0;
        margin-bottom: 20px;
    }

    .solution-showcase-right {
        width: 100%;
    }

    .solution-tabs-vertical {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
    }

    .solution-tab-v {
        min-width: auto;
        padding: 10px 16px;
    }

    .datacenter-section .section-header {
        padding: 60px 0 40px;
    }

    .world-map-wrapper {
        height: 300px;
        background-size: contain;
    }

    .world-map {
        width: 100%;
    }

    .region-list {
        transform: scale(0.6);
        transform-origin: top left;
    }

    .map-legend-wrapper {
        width: auto;
        padding: 0 20px;
    }

    .map-legend-list {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* 响应式适配 - CTA区 */
@media (max-width: 768px) {
    .cta-section {
        padding: 60px 0;
    }

    .cta-content h2 {
        font-size: 28px;
    }

    .cta-content p {
        font-size: 16px;
        margin-bottom: 32px;
    }

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

    .cta-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 576px) {
    .cta-section {
        padding: 50px 0;
    }

    .cta-content h2 {
        font-size: 24px;
    }

    .cta-content p {
        font-size: 14px;
    }
}

/* ============================================
 * 云产品分类标签页
 * ============================================ */
.cloud-products-section {
    padding: 80px 0;
    background: #fff;
}

.product-tabs-wrapper {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

.product-tabs-nav {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
}

.product-tabs-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.product-tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: #f5f7fa;
    border: 2px solid transparent;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.product-tab:hover {
    background: #e8f3ff;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.product-tab.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.product-tab svg {
    flex-shrink: 0;
}

.product-tabs-content {
    background: #fff;
    border: 1px solid #EBEDF0;
    border-radius: 12px;
    padding: 32px;
    min-height: 200px;
}

.product-tab-panel {
    display: none;
}

.product-tab-panel.active {
    display: block;
}

.product-category-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.product-category-item {
    padding: 16px 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.product-category-item:hover {
    background: #f5f7fa;
    border-color: #EBEDF0;
}

.product-category-item a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.product-category-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-category-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.badge-hot {
    display: inline-block;
    padding: 2px 8px;
    background: linear-gradient(135deg, #ff4d4f, #ff7875);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    line-height: 1.4;
}

.badge-new {
    display: inline-block;
    padding: 2px 8px;
    background: linear-gradient(135deg, #006EFF, #40a9ff);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    line-height: 1.4;
}

.badge-soon {
    display: inline-block;
    padding: 2px 8px;
    background: #f5f7fa;
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 500;
    border-radius: 4px;
    border: 1px solid #EBEDF0;
    line-height: 1.4;
}

/* ============================================
 * 为什么选择我们
 * ============================================ */
.advantages-section {
    padding: 80px 0;
    background: #f5f7fa;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

.advantage-item {
    text-align: center;
    padding: 40px 30px;
    background: #fff;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid #EBEDF0;
}

.advantage-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--primary-color);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, #E8F3FF, #006EFF);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: all 0.3s ease;
}

.advantage-item:hover .advantage-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 24px rgba(0, 110, 255, 0.3);
}

.advantage-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.advantage-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
 * 解决方案展示 - 背景图+左侧文字+右侧tab
 * ============================================ */
.solution-showcase {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
}

.solution-showcase-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.solution-bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity 0.8s ease;
    background: #1a1a2e;
}

.solution-bg-img.active {
    opacity: 1;
}

.solution-showcase-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.1) 100%);
    z-index: 1;
}

.solution-showcase-content {
    position: relative;
    z-index: 2;
    display: flex;
    width: 1220px;
    max-width: 1220px;
    min-width: 1220px;
    margin: 0 auto;
    height: 100%;
}

.solution-showcase-left {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 60px 0;
}

.solution-info {
    display: none;
}

.solution-info.active {
    display: block;
    animation: fadeInUp 0.6s ease;
}

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

.solution-info-title {
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.3;
}

.solution-info-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 500px;
}

.solution-info-link {
    display: inline-block;
    padding: 12px 36px;
    background: #006EFF;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.solution-info-link:hover {
    background: #005AD4;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,110,255,0.3);
}

.solution-showcase-right {
    width: 240px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.solution-tabs-vertical {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.solution-tab-v {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: rgba(255,255,255,0.1);
    border: none;
    color: rgba(255,255,255,0.8);
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
    min-width: 160px;
}

.solution-tab-v:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
}

.solution-tab-v.active {
    background: #006EFF;
    color: #fff;
}

.solution-tab-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    background-image: url('/static/home/images/solutions/solution-items-icon.png');
    background-repeat: no-repeat;
    background-size: 60px 300px;
}

.solution-tab-icon.cloud-icon { background-position: 0 0; }
.solution-tab-icon.finance-icon { background-position: 0 -60px; }
.solution-tab-icon.mobile-icon { background-position: 0 -120px; }
.solution-tab-icon.busin-icon { background-position: 0 -180px; }
.solution-tab-icon.game-icon { background-position: 0 -240px; }

/* ============================================
 * 数据中心 - 世界地图 (还原HOME参考)
 * ============================================ */
.datacenter-section {
    padding: 0;
    background: #f7f8fa;
}

.datacenter-section .section-header {
    padding: 80px 0 60px;
}

.map-service-wrapper {
    padding: 0;
}

.map-service-box {
    position: relative;
}

.world-map-wrapper {
    width: 100%;
    height: 360px;
    background: url('/static/home/images/earth-map.png') no-repeat center;
    background-size: 1000px 358px;
}

.world-map {
    position: relative;
    margin: 0 auto;
    width: 1000px;
    height: 100%;
}

.region-list {
    position: absolute;
    left: 0;
    top: 0;
}

@keyframes warn {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 0;
    }
}

.area-box .dot {
    display: inline-block;
    position: absolute;
    left: 0;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #a2a9b4;
    opacity: 1;
}

.area-box .pulse {
    display: inline-block;
    position: absolute;
    top: -28px;
    left: -28px;
    height: 66px;
    width: 66px;
    border: 2px solid #b7b7b7;
    border-radius: 48px;
    background: transparent;
    box-shadow: 0 0 4px #82878f, 0 0 10px rgba(130, 135, 143, 0.04) inset;
    opacity: 0.12;
    animation: warn 2s ease-out both;
    animation-iteration-count: infinite;
}

.area-box .delay-01 { animation-delay: 0; }
.area-box .delay-02 { animation-delay: 0.4s; }
.area-box .delay-03 { animation-delay: 0.8s; }
.area-box .delay-04 { animation-delay: 1.2s; }
.area-box .delay-05 { animation-delay: 1.6s; }
.area-box .delay-06 { animation-delay: 2s; }
.area-box .delay-07 { animation-delay: 2.4s; }
.area-box .delay-08 { animation-delay: -0.4s; }
.area-box .delay-09 { animation-delay: -0.8s; }
.area-box .delay-10 { animation-delay: -1.2s; }

.region-list.active .area-box .dot {
    background: #006EFF;
}

.region-list.active .area-box .pulse {
    border-color: #006EFF;
    top: -45px;
    left: -45px;
    height: 100px;
    width: 100px;
    box-shadow: 0 0 0px #006EFF, 0 0 210px rgba(0, 110, 255, 0) inset;
}

.region-list.waite .area-box .dot {
    background: #f90;
}

.region-list.waite .area-box .pulse {
    border-color: #f90;
}

.show-regin {
    position: absolute;
    left: 4px;
    height: 0;
    top: 0;
    width: 11px;
    opacity: 0;
    transition: all 500ms ease-in-out;
    z-index: 66;
}

.online-node .show-regin,
.region-list:hover .show-regin {
    height: 60px;
    opacity: 1;
}

.waite-node .show-regin,
.region-list:hover .show-regin {
    height: 60px;
    opacity: 1;
}

.show-regin span {
    display: inline-block;
    position: absolute;
    top: -12px;
    padding: 6px 10px;
    width: 80px;
    left: 50%;
    margin-left: -40px;
    text-align: center;
    font-size: 14px;
    color: #ccc;
    white-space: nowrap;
    border-radius: 2px;
}

.region-list.active .show-regin span {
    position: relative;
    color: #111;
}

.region-list.waite .show-regin span {
    color: #ccc;
}

.area-box {
    z-index: 77;
}

/* 地图区域位置 - 基于腾讯云earth-map.png (3010x1078 → 1000x358) */
.postition-1 { left: 377px; top: 115px; }
.postition-2 { left: 87px; top: 72px; }
.postition-3 { left: 185px; top: 127px; }
.postition-4 { left: 249px; top: 35px; }
.postition-5 { left: 439px; top: 54px; }
.postition-6 { left: 387px; top: 81px; }
.postition-7 { left: 399px; top: 69px; }
.postition-7.region-list.active .area-box .pulse {
    top: -50px;
    left: -50px;
    width: 110px;
    height: 110px;
    border-radius: 50%;
}
.postition-8 { left: 402px; top: 39px; }
.postition-9 { left: 307px; top: 75px; }
.postition-9.region-list.active .area-box .pulse {
    top: -50px;
    left: -50px;
    width: 110px;
    height: 110px;
    border-radius: 50%;
}
.postition-10 { left: 390px; top: 88px; }
.postition-10 .show-regin span { left: 0; }
.postition-11 { left: 133px; top: 69px; }
.postition-13 { left: 359px; top: 66px; }
.postition-14 { left: 375px; top: 225px; }
.postition-15 { left: 381px; top: 127px; }
.postition-15 .show-regin span { left: -52px; }
.postition-16 { left: 330px; top: 140px; }
.postition-16 .show-regin span { left: -52px; }
.postition-17 { left: 411px; top: 63px; }
.postition-6 .show-regin span { left: -50px; }
.postition-8 .show-regin span { left: -52px; }

/* 地图图例 - 还原HOME参考 */
.map-legend-wrapper {
    margin: 0 auto 50px;
    width: 450px;
}

.map-legend-list {
    display: flex;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
    width: 100%;
}

.map-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #006EFF;
    float: left;
    margin-left: 20px;
    padding-left: 30px;
    height: 44px;
    line-height: 44px;
    position: relative;
}

.map-legend-item:first-child {
    margin-left: 0;
}

.map-legend-item .legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.map-legend-item .legend-dot.online {
    background: #006EFF;
}

.map-legend-item .legend-dot.upcoming {
    background: #f90;
}

.map-legend-item .legend-dot.planned {
    background: #a2a9b4;
}

/* ============================================
 * 资质证书
 * ============================================ */
.certificates-section {
    padding: 80px 0;
    background: #fff;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

.certificate-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: #f5f7fa;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.certificate-item:hover {
    background: #fff;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}

.certificate-icon {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    background: linear-gradient(135deg, #E8F3FF, #006EFF);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.certificate-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.certificate-info p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* ============================================
 * 合作伙伴
 * ============================================ */
.partners-section {
    padding: 80px 0;
    background: #f5f7fa;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 24px;
    background: #fff;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid #EBEDF0;
}

.partner-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--primary-color);
}

.partner-logo-placeholder {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 2px;
}

/* 响应式适配 - 新增板块 */
@media (max-width: 992px) {
    .product-tabs-group {
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        padding-bottom: 4px;
    }

    .product-tabs-group::-webkit-scrollbar {
        display: none;
    }

    .product-tab {
        padding: 10px 18px;
        font-size: 14px;
    }

    .product-category-list {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .cloud-products-section,
    .advantages-section,
    .partners-section {
        padding: 60px 0;
    }

    .product-tabs-content {
        padding: 20px;
    }

    .product-category-list {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .advantage-item {
        padding: 24px 20px;
    }

    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .product-tab {
        padding: 8px 14px;
        font-size: 13px;
        gap: 4px;
    }

    .product-tab svg {
        width: 16px;
        height: 16px;
    }

    .product-tabs-nav {
        gap: 8px;
    }

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