/* ============================================================
   ShopSuite 企业官网 - 完整样式表
   主色调: #2b5ae0 深蓝色 | 现代企业官网风格
   ============================================================ */

/* ===== 1. CSS变量 & Reset ===== */
:root {
    --primary: #2b5ae0;
    --primary-dark: #1e45b8;
    --primary-light: #4d7cf7;
    --secondary: #ff6b35;
    --dark: #1a1a2e;
    --text: #333;
    --text-light: #666;
    --text-lighter: #999;
    --bg: #f7f8fa;
    --white: #fff;
    --border: #e8e8e8;
    --shadow: 0 2px 12px rgba(0,0,0,.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,.12);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all .3s ease;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
    display: block;
}

ol, ul {
    list-style: none;
}

blockquote, q {
    quotes: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
    border: 0;
}

input, button, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
}

button {
    cursor: pointer;
    background: none;
}


/* ===== 2. 基础排版 ===== */
a {
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
}

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

p {
    margin-bottom: 12px;
    line-height: 1.8;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: 12px;
}

h1 { font-size: 42px; }
h2 { font-size: 32px; }
h3 { font-size: 24px; }
h4 { font-size: 20px; }
h5 { font-size: 18px; }
h6 { font-size: 16px; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

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

.section-dark {
    background: linear-gradient(135deg, #0a1628 0%, #1e3a6e 100%);
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    color: var(--text);
    position: relative;
    padding-bottom: 20px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.section-title-light {
    color: var(--white);
}

.section-title-light::after {
    background: rgba(255,255,255,.5);
}

.section-desc {
    font-size: 16px;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-desc-light {
    color: rgba(255,255,255,.7);
}

.section-more {
    text-align: center;
    margin-top: 40px;
}


/* ===== 3. 顶部栏(.top-bar) ===== */
.top-bar {
    background: var(--primary-dark);
    color: var(--white);
    height: 36px;
    line-height: 36px;
    font-size: 13px;
    position: relative;
    z-index: 1001;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

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

.top-bar-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255,255,255,.85);
    font-size: 13px;
}

.top-bar-item i {
    font-size: 14px;
}

.top-bar-link {
    color: rgba(255,255,255,.85);
    font-size: 13px;
    transition: var(--transition);
}

.top-bar-link:hover {
    color: var(--white);
}

/* icon 字体图标 */
.icon-phone::before,
.icon-email::before,
.icon-location::before,
.icon-clock::before {
    font-style: normal;
    display: inline-block;
    width: 16px;
    text-align: center;
}
.icon-phone::before { content: '☎'; }
.icon-email::before { content: '✉'; }
.icon-location::before { content: '📍'; }
.icon-clock::before { content: '⏰'; }


/* ===== 4. 导航(.header) ===== */
.header {
    position: fixed;
    top: 36px;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    background: transparent;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.header .logo img {
    height: 38px;
    width: auto;
    transition: var(--transition);
}

.header .nav-list {
    display: flex;
    align-items: center;
}

.header .nav-item {
    position: relative;
}

.header .nav-item > a {
    display: block;
    padding: 0 18px;
    font-size: 15px;
    color: var(--white);
    line-height: 70px;
    transition: var(--transition);
    white-space: nowrap;
}

.header .nav-item > a:hover,
.header .nav-item.active > a {
    color: var(--primary-light);
}

/* 导航下拉菜单 */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--white);
    min-width: 180px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    padding: 8px 0;
    z-index: 100;
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown li a {
    display: block;
    padding: 10px 24px;
    font-size: 14px;
    color: var(--text);
    white-space: nowrap;
    transition: var(--transition);
}

.nav-dropdown li a:hover {
    color: var(--primary);
    background: var(--bg);
}

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

/* 滚动后的header样式 */
.header.scrolled {
    background: var(--white);
    box-shadow: 0 2px 20px rgba(0,0,0,.1);
    top: 0;
}

.header.scrolled .nav-item > a {
    color: var(--text);
}

.header.scrolled .nav-item > a:hover,
.header.scrolled .nav-item.active > a {
    color: var(--primary);
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.header.scrolled .hamburger span {
    background: var(--text);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}


/* ===== 5. Banner区(.banner-section) ===== */
.banner-section {
    position: relative;
    height: 600px;
    overflow: hidden;
    background: #0a1628;
}

.banner-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity .8s ease;
    background: linear-gradient(135deg, #0a1628 0%, #1a3a6e 100%);
}

.banner-slide.active {
    opacity: 1;
    z-index: 1;
}

.banner-slide > img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    align-items: center;
}

.banner-content .container {
    width: 100%;
}

.banner-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.banner-text {
    flex: 1;
    max-width: 580px;
}

.banner-text h1 {
    font-size: 42px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.banner-text p {
    font-size: 18px;
    color: rgba(255,255,255,.75);
    line-height: 1.8;
    margin-bottom: 30px;
}

.banner-badge {
    display: inline-block;
    padding: 4px 16px;
    background: var(--primary);
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 16px;
}

.banner-badge.badge-go {
    background: #00ADD8;
}

.banner-badge.badge-java {
    background: #f89820;
}

.banner-img {
    flex: 0 0 480px;
    max-width: 480px;
}

.banner-img img {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,.3));
    animation: floatUp 3s ease-in-out infinite;
}

@keyframes floatUp {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

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

/* banner箭头 */
.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,.15);
    color: var(--white);
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    border: none;
    backdrop-filter: blur(4px);
    transition: var(--transition);
}

.banner-arrow:hover {
    background: rgba(255,255,255,.3);
}

.banner-prev {
    left: 30px;
}

.banner-next {
    right: 30px;
}

/* banner圆点 */
.banner-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,.4);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--white);
    transform: scale(1.2);
}

.dot:hover {
    background: rgba(255,255,255,.8);
}

/* Banner中纯图片模式(不带flex) */
.banner-slide .banner-content h1 {
    font-size: 42px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 16px;
}

.banner-slide .banner-content p {
    font-size: 18px;
    color: rgba(255,255,255,.75);
    margin-bottom: 30px;
}


/* ===== 6. 统计栏(.stats-section) ===== */
.stats-section {
    background: var(--primary);
    padding: 30px 0;
    color: var(--white);
}

.stats-grid {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 10px 20px;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.stat-suffix {
    font-size: 24px;
    font-weight: 600;
    color: rgba(255,255,255,.9);
}

.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,.75);
    margin-top: 8px;
}


/* ===== 7. 产品展示(.product-grid / .product-card) ===== */
.product-grid {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.product-card {
    flex: 1;
    min-width: 300px;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.product-card-img {
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f4ff 0%, #e4ecff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.product-card-img img {
    max-height: 100%;
    width: auto;
    transition: transform .4s ease;
}

.product-card:hover .product-card-img img {
    transform: scale(1.05);
}

.product-card-body {
    padding: 24px;
}

.product-card-body h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text);
}

.product-card-body p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.product-tags,
.product-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    color: var(--primary);
    background: rgba(43,90,224,.08);
    border-radius: 20px;
    white-space: nowrap;
}


/* ===== 8. 系统特性Tab区(.feature-tabs) ===== */
.feature-tabs {
    margin-top: 10px;
}

.tab-nav {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--border);
}

.tab-btn {
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--primary);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn .5s ease;
}

.tab-panel {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.tab-panel-text h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
}

.tab-panel-text p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.tab-panel-text ul {
    list-style: none;
}

.tab-panel-text ul li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
}

.tab-panel-text ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
}

.feature-mini-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.feature-mini-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 3px solid var(--primary);
}

.feature-mini-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-mini-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.feature-mini-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 0;
}


/* ===== 9. 解决方案(.solution-grid) ===== */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.solution-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary);
    position: relative;
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.solution-card-icon {
    font-size: 36px;
    margin-bottom: 16px;
    line-height: 1;
}

.solution-card-icon img {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.solution-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.solution-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}

.card-link {
    display: inline-block;
    font-size: 14px;
    color: var(--primary);
    font-weight: 600;
    transition: var(--transition);
}

.card-link:hover {
    color: var(--primary-dark);
    transform: translateX(4px);
}


/* ===== 10. 行业方案(.industry-grid) ===== */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.industry-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid transparent;
    border-image: linear-gradient(180deg, var(--primary), var(--primary-light)) 1;
}

.industry-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.industry-icon {
    font-size: 40px;
    margin-bottom: 16px;
    line-height: 1;
}

.industry-icon img {
    width: 56px;
    height: 56px;
    object-fit: contain;
}

.industry-item h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.industry-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 0;
}


/* ===== 11. 客户案例(.case-grid) ===== */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: block;
    color: var(--text);
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    color: var(--text);
}

.case-card-img {
    height: 200px;
    overflow: hidden;
    background: var(--bg);
}

.case-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}

.case-card:hover .case-card-img img {
    transform: scale(1.08);
}

.case-card-body {
    padding: 20px;
}

.case-card-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.case-card-body p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-tag {
    display: inline-block;
    padding: 3px 10px;
    font-size: 12px;
    color: var(--primary);
    background: rgba(43,90,224,.08);
    border-radius: 4px;
    margin-bottom: 8px;
}

.case-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-lighter);
    font-size: 16px;
}


/* ===== 12. 多终端展示(.terminal-showcase) ===== */
.terminal-showcase {
    max-width: 1000px;
    margin: 0 auto;
}

.terminal-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
    margin-bottom: 40px;
    border-bottom: 2px solid rgba(255,255,255,.15);
}

.terminal-tab {
    padding: 12px 22px;
    font-size: 15px;
    color: rgba(255,255,255,.65);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    white-space: nowrap;
}

.terminal-tab:hover {
    color: rgba(255,255,255,.9);
}

.terminal-tab.active {
    color: var(--white);
    border-bottom-color: var(--white);
}

.terminal-preview {
    text-align: center;
}

.terminal-preview img {
    max-width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
}

.terminal-preview-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 8px;
}

.terminal-preview-desc {
    font-size: 15px;
    color: rgba(255,255,255,.65);
    margin-bottom: 24px;
}


/* ===== 13. 技术架构(.arch-section) ===== */
.arch-subtitle {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    text-align: center;
    margin-bottom: 24px;
    margin-top: 40px;
    padding-bottom: 12px;
    position: relative;
}

.arch-subtitle::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: var(--primary);
}

.arch-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 30px;
}

.arch-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.section-gray .arch-item {
    background: var(--white);
}

.arch-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.arch-icon-img {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    display: block;
    object-fit: contain;
}

.arch-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.arch-item p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 0;
}


/* ===== 14. 服务保障(.service-grid) ===== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.service-icon-img {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: block;
    object-fit: contain;
}

.service-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.service-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 0;
}


/* ===== 15. 最新资讯(.news-grid) ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: block;
    color: var(--text);
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    color: var(--text);
}

.news-card-img {
    height: 200px;
    overflow: hidden;
    background: var(--bg);
}

.news-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}

.news-card:hover .news-card-img img {
    transform: scale(1.08);
}

.news-card-body {
    padding: 20px;
}

.news-card-body h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.news-card-body p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-tag {
    display: inline-block;
    padding: 3px 10px;
    font-size: 12px;
    color: var(--primary);
    background: rgba(43,90,224,.08);
    border-radius: 4px;
    margin-bottom: 10px;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-lighter);
}


/* ===== 16. CTA号召(.cta-section) ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, #1a3a8e 100%);
    padding: 80px 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 36px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 18px;
    color: rgba(255,255,255,.8);
    margin-bottom: 36px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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


/* ===== 17. 底部(.footer) ===== */
.footer {
    background: var(--dark);
    padding: 60px 0 0;
    color: #ccc;
}

.footer-grid {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

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

.footer-col:first-child {
    flex: 1.5;
    min-width: 280px;
}

.footer-logo {
    margin-bottom: 16px;
}

.footer-logo img {
    height: 36px;
    width: auto;
    filter: brightness(1.5);
}

.footer-desc {
    font-size: 14px;
    color: #aaa;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-title {
    font-size: 16px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 12px;
    position: relative;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary);
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links li a {
    font-size: 14px;
    color: #aaa;
    transition: var(--transition);
}

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-contact li i {
    font-size: 16px;
    color: var(--primary-light);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-label {
    display: block;
    font-size: 12px;
    color: #888;
    margin-bottom: 2px;
}

.contact-value {
    font-size: 14px;
    color: #ccc;
}

strong.contact-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
}

.footer-qrcode {
    text-align: left;
}

.footer-qrcode .qrcode {
    width: 120px;
    height: 120px;
    border-radius: var(--radius);
    border: 2px solid rgba(255,255,255,.1);
}

.qrcode-tip {
    display: block;
    font-size: 12px;
    color: #888;
    margin-top: 8px;
}

/* 友情链接 */
.friend-links {
    background: #151525;
    padding: 16px 0;
    margin-top: 40px;
    font-size: 13px;
}

.friend-links .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

.friend-links-label {
    color: #888;
    font-weight: 600;
    white-space: nowrap;
}

.friend-links a {
    color: #777;
    transition: var(--transition);
}

.friend-links a:hover {
    color: #bbb;
}

/* 底部版权 */
.footer-bottom {
    background: #0f0f1f;
    padding: 16px 0;
    margin-top: 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: #666;
    margin-bottom: 0;
}

.footer-bottom a {
    color: #777;
    transition: var(--transition);
}

.footer-bottom a:hover {
    color: #bbb;
}

.footer-divider {
    margin: 0 8px;
    color: #555;
}

/* 回到顶部 */
.back-to-top {
    position: fixed;
    right: 30px;
    bottom: 40px;
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(43,90,224,.4);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}


/* ===== 18. 客服悬浮(.fixed-side) ===== */
.fixed-side {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.fixed-side .inter {
    position: relative;
    width: 45px;
    height: 45px;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 18px;
}

.fixed-side .inter:first-child {
    border-radius: 8px 0 0 0;
}

.fixed-side .inter:last-child {
    border-radius: 0 0 0 8px;
}

.fixed-side .inter:hover {
    background: var(--primary-dark);
    width: 50px;
}

.fixed-side .inter span {
    font-size: 18px;
    line-height: 1;
}

.fixed-side .inter .contact-det,
.fixed-side .inter .code-det {
    position: absolute;
    right: 55px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 12px 16px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    color: var(--text);
    font-size: 14px;
}

.fixed-side .inter:hover .contact-det,
.fixed-side .inter:hover .code-det {
    opacity: 1;
    visibility: visible;
    right: 50px;
}

.fixed-side .inter .code-det img {
    width: 120px;
    height: 120px;
    display: block;
}

.fixed-side .inter.tel span::before { content: '☎'; }
.fixed-side .inter.online span::before { content: '💬'; }
.fixed-side .inter.wechat span::before { content: '💚'; }
.fixed-side .inter.back-top span::before { content: '↑'; }


/* ===== 19. 面包屑和内页公共 ===== */
.page-banner {
    height: 250px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, #1a3a8e 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 106px;
    position: relative;
}

.page-banner h1 {
    font-size: 36px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 10px;
}

.page-banner p {
    font-size: 16px;
    color: rgba(255,255,255,.8);
}

.breadcrumb {
    padding: 12px 0;
    font-size: 14px;
    color: rgba(255,255,255,.7);
}

.breadcrumb a {
    color: rgba(255,255,255,.7);
    transition: var(--transition);
}

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

.breadcrumb span {
    margin: 0 8px;
    color: rgba(255,255,255,.4);
}


/* ===== 20. 新闻列表页 ===== */
.news-list {
    list-style: none;
}

.news-list-item {
    display: flex;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.news-list-item:hover {
    background: rgba(43,90,224,.02);
}

.news-list-item:last-child {
    border-bottom: none;
}

.news-list-img,
.news-thumb {
    flex: 0 0 220px;
    width: 220px;
    height: 150px;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg);
}

.news-list-img img,
.news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}

.news-list-item:hover .news-list-img img,
.news-list-item:hover .news-thumb img {
    transform: scale(1.05);
}

.news-list-body,
.news-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-list-body h3,
.news-info h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-list-body h3 a,
.news-info h3 a {
    color: var(--text);
    transition: var(--transition);
}

.news-list-body h3 a:hover,
.news-info h3 a:hover {
    color: var(--primary);
}

.news-list-body p,
.news-info p,
.news-excerpt {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}


/* ===== 21. 文章详情页 ===== */
.article-detail {
    max-width: 860px;
    margin: 0 auto;
}

.article-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.article-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    line-height: 1.4;
}

.article-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    font-size: 14px;
    color: var(--text-lighter);
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.article-content {
    line-height: 1.8;
    font-size: 16px;
    color: var(--text);
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    margin: 20px 0;
}

.article-content p {
    margin-bottom: 16px;
    line-height: 1.8;
}

.article-content h2 {
    font-size: 24px;
    margin: 32px 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.article-content h3 {
    font-size: 20px;
    margin: 24px 0 12px;
}

.article-content ul,
.article-content ol {
    margin: 16px 0;
    padding-left: 24px;
}

.article-content ul {
    list-style: disc;
}

.article-content ol {
    list-style: decimal;
}

.article-content li {
    margin-bottom: 8px;
    line-height: 1.8;
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    padding: 16px 20px;
    margin: 20px 0;
    background: var(--bg);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--text-light);
}

.article-content pre {
    background: #1e1e2e;
    color: #e0e0e0;
    padding: 20px;
    border-radius: var(--radius);
    overflow-x: auto;
    margin: 20px 0;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.6;
}

.article-content code {
    background: rgba(43,90,224,.08);
    color: var(--primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 14px;
    font-family: 'Fira Code', 'Consolas', monospace;
}

.article-content pre code {
    background: none;
    color: inherit;
    padding: 0;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.article-content table th,
.article-content table td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
    font-size: 14px;
}

.article-content table th {
    background: var(--bg);
    font-weight: 600;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 30px 0;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.article-tags .tag {
    padding: 5px 14px;
    font-size: 13px;
}

.article-nav {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.article-prev,
.article-next {
    flex: 1;
    max-width: 48%;
}

.article-prev a,
.article-next a {
    display: block;
    padding: 16px 20px;
    background: var(--bg);
    border-radius: var(--radius);
    transition: var(--transition);
    font-size: 14px;
    color: var(--text);
    line-height: 1.6;
}

.article-prev a:hover,
.article-next a:hover {
    background: rgba(43,90,224,.06);
    color: var(--primary);
}

.article-next {
    text-align: right;
}

.related-section {
    margin-top: 50px;
}

.related-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
}


/* ===== 22. 产品详情 ===== */
.detail-intro {
    display: flex;
    gap: 40px;
    align-items: center;
    flex-wrap: wrap;
}

.detail-intro-img {
    flex: 0 0 480px;
    max-width: 480px;
}

.detail-intro-img img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.detail-intro-text {
    flex: 1;
    min-width: 300px;
}

.detail-intro-text h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}

.detail-intro-text p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.detail-actions {
    display: flex;
    gap: 16px;
    margin-top: 24px;
}

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

.feature-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary);
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.feature-item h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 0;
}

.detail-tag {
    display: inline-block;
    padding: 4px 12px;
    font-size: 13px;
    color: var(--primary);
    background: rgba(43,90,224,.08);
    border-radius: 4px;
    margin-bottom: 8px;
    margin-right: 6px;
}


/* ===== 23. 方案详情 ===== */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.advantage-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.advantage-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.advantage-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    font-size: 20px;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 16px;
}

.advantage-item h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.advantage-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 0;
}


/* ===== 24. 联系我们 ===== */
.contact-layout {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(43,90,224,.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}

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

.contact-qrcode {
    margin-top: 30px;
}

.contact-qrcode img {
    width: 150px;
    height: 150px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.contact-form-wrap {
    flex: 1;
    min-width: 300px;
}

.contact-form {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group .required {
    color: #e74c3c;
    margin-left: 2px;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form input[type="tel"],
.contact-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--text);
    background: var(--white);
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(43,90,224,.1);
}

.contact-form textarea {
    min-height: 120px;
    resize: vertical;
}

.map-container {
    width: 100%;
    height: 300px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: 40px;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: 0;
}


/* ===== 25. 分页 ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
    padding-top: 24px;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    font-size: 14px;
    color: var(--text);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    text-decoration: none;
}

.pagination a:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(43,90,224,.04);
}

.pagination span.current,
.pagination .active {
    color: var(--white);
    background: var(--primary);
    border-color: var(--primary);
}

.pagination .disabled {
    color: var(--text-lighter);
    cursor: not-allowed;
    opacity: .5;
}


/* ===== 26. 分类tabs ===== */
.category-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 30px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-bottom: 2px solid var(--border);
    scrollbar-width: none;
}

.category-tabs::-webkit-scrollbar {
    display: none;
}

.tab-link {
    padding: 12px 24px;
    font-size: 15px;
    color: var(--text-light);
    white-space: nowrap;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

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

.tab-link.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 600;
}


/* ===== 27. 按钮系统 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    border: 2px solid transparent;
    white-space: nowrap;
    line-height: 1.5;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(43,90,224,.3);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--white);
    border-color: var(--secondary);
}

.btn-secondary:hover {
    background: #e55a27;
    border-color: #e55a27;
    color: var(--white);
    transform: translateY(-1px);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-1px);
}

.btn-outline-white {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,.6);
}

.btn-outline-white:hover {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
    transform: translateY(-1px);
}

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

.btn-white:hover {
    background: #f0f4ff;
    transform: translateY(-1px);
}

.btn-github {
    background: #333;
    color: var(--white);
    border-color: #333;
}

.btn-github:hover {
    background: #222;
    border-color: #222;
    color: var(--white);
    transform: translateY(-1px);
}

.btn-gitee {
    background: #c71d23;
    color: var(--white);
    border-color: #c71d23;
}

.btn-gitee:hover {
    background: #b01920;
    border-color: #b01920;
    color: var(--white);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 6px 18px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 36px;
    font-size: 16px;
}

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

.btn-trial {
    border-radius: 20px;
}


/* ===== 28. 通用工具类 ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-white { color: var(--white); }
.text-primary { color: var(--primary); }
.text-light { color: var(--text-light); }
.text-lighter { color: var(--text-lighter); }

.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.pt-20 { padding-top: 20px; }
.pb-20 { padding-bottom: 20px; }

.hidden { display: none; }
.clearfix::after {
    content: '';
    display: table;
    clear: both;
}

/* 关于我们 - 企业文化 */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.culture-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.culture-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.culture-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.culture-item h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.culture-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 0;
}

/* 时间线 */
.timeline {
    position: relative;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    margin-bottom: 40px;
    position: relative;
}

.timeline-year {
    flex: 0 0 100px;
    text-align: right;
    padding-right: 30px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    position: relative;
}

.timeline-year::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 8px;
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
    border: 3px solid var(--white);
    box-shadow: 0 0 0 2px var(--primary);
}

.timeline-content {
    flex: 1;
    padding-left: 30px;
    max-width: 400px;
}

.timeline-content h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 0;
}


/* ===== 29. 响应式 ===== */

/* 1200px以下 */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 24px;
    }

    .banner-img {
        flex: 0 0 380px;
        max-width: 380px;
    }

    .detail-intro-img {
        flex: 0 0 400px;
        max-width: 400px;
    }

    .arch-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
}

/* 992px以下 */
@media (max-width: 992px) {
    /* 导航变汉堡 */
    .hamburger {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 300px;
        height: 100vh;
        background: var(--white);
        box-shadow: -4px 0 20px rgba(0,0,0,.1);
        transition: var(--transition);
        z-index: 10000;
        overflow-y: auto;
        padding-top: 60px;
    }

    .main-nav.active {
        right: 0;
    }

    .header .nav-list {
        flex-direction: column;
        padding: 0;
    }

    .header .nav-item > a {
        color: var(--text);
        line-height: 50px;
        padding: 0 24px;
        border-bottom: 1px solid var(--border);
    }

    .header .nav-item > a:hover,
    .header .nav-item.active > a {
        color: var(--primary);
    }

    .nav-dropdown {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        border-radius: 0;
        background: var(--bg);
    }

    .nav-dropdown li a {
        padding: 10px 40px;
    }

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

    /* 产品转2列 */
    .product-grid {
        gap: 20px;
    }

    .product-card {
        min-width: calc(50% - 10px);
        flex: 0 0 calc(50% - 10px);
    }

    /* 方案转2列 */
    .solution-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 行业转2列 */
    .industry-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 案例转2列 */
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 新闻转2列 */
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* mini卡片转2列 */
    .feature-mini-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 架构转2列 */
    .arch-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 服务转2列 */
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 优势转2列 */
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 特性转2列 */
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 文化转2列 */
    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .banner-flex {
        flex-direction: column;
        text-align: center;
    }

    .banner-text {
        max-width: 100%;
    }

    .banner-btns {
        justify-content: center;
    }

    .banner-img {
        flex: 0 0 auto;
        max-width: 360px;
    }

    .detail-intro {
        flex-direction: column;
    }

    .detail-intro-img {
        flex: 0 0 auto;
        max-width: 100%;
    }

    .contact-layout {
        flex-direction: column;
    }

    .footer-grid {
        flex-wrap: wrap;
    }

    .footer-col {
        flex: 0 0 calc(50% - 20px);
        min-width: calc(50% - 20px);
    }

    .footer-col:first-child {
        flex: 0 0 100%;
        min-width: 100%;
    }
}

/* 768px以下 */
@media (max-width: 768px) {
    .top-bar {
        display: none;
    }

    .header {
        top: 0;
    }

    .header .container {
        height: 60px;
    }

    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 24px;
    }

    .section-desc {
        font-size: 14px;
        margin-bottom: 30px;
    }

    h1 { font-size: 28px; }
    h2 { font-size: 24px; }
    h3 { font-size: 20px; }

    /* banner调整 */
    .banner-section {
        height: 500px;
    }

    .banner-text h1 {
        font-size: 28px;
    }

    .banner-text p {
        font-size: 15px;
    }

    .banner-img {
        display: none;
    }

    .banner-arrow {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }

    .banner-prev { left: 10px; }
    .banner-next { right: 10px; }

    /* 统计栏 */
    .stats-grid {
        gap: 10px;
    }

    .stat-number {
        font-size: 32px;
    }

    .stat-suffix {
        font-size: 18px;
    }

    /* 所有grid转1列 */
    .product-card {
        min-width: 100%;
        flex: 0 0 100%;
    }

    .solution-grid,
    .industry-grid,
    .case-grid,
    .news-grid,
    .service-grid,
    .advantage-grid,
    .feature-grid,
    .culture-grid {
        grid-template-columns: 1fr;
    }

    .feature-mini-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .arch-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    /* tab按钮缩小 */
    .tab-nav {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        justify-content: flex-start;
    }

    .tab-btn {
        padding: 12px 20px;
        font-size: 14px;
    }

    .tab-panel {
        padding: 24px;
    }

    /* 新闻列表改纵向 */
    .news-list-item {
        flex-direction: column;
        gap: 16px;
    }

    .news-list-img,
    .news-thumb {
        flex: 0 0 auto;
        width: 100%;
        height: 200px;
    }

    /* 文章详情 */
    .article-header h1 {
        font-size: 24px;
    }

    .article-nav {
        flex-direction: column;
    }

    .article-prev,
    .article-next {
        max-width: 100%;
    }

    /* page-banner */
    .page-banner {
        height: 200px;
        padding-top: 80px;
    }

    .page-banner h1 {
        font-size: 24px;
    }

    /* CTA */
    .cta-section {
        padding: 50px 0;
    }

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

    .cta-section p {
        font-size: 15px;
    }

    /* 终端tabs */
    .terminal-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        justify-content: flex-start;
    }

    .terminal-tab {
        padding: 10px 14px;
        font-size: 13px;
    }

    /* Footer */
    .footer-col {
        flex: 0 0 100%;
        min-width: 100%;
    }

    .footer-grid {
        gap: 30px;
    }

    .friend-links .container {
        flex-wrap: wrap;
        justify-content: center;
    }

    /* 时间线 */
    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        flex-direction: column;
        padding-left: 50px;
    }

    .timeline-year {
        text-align: left;
        padding-right: 0;
        margin-bottom: 8px;
    }

    .timeline-year::after {
        left: -36px;
        right: auto;
    }

    .timeline-content {
        padding-left: 0;
        max-width: 100%;
    }

    /* 客服悬浮 */
    .fixed-side {
        display: none;
    }

    .back-to-top {
        right: 16px;
        bottom: 24px;
        width: 40px;
        height: 40px;
    }
}

/* 480px以下 */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 22px;
    }

    h1 { font-size: 24px; }
    h2 { font-size: 22px; }

    .banner-section {
        height: 420px;
    }

    .banner-text h1 {
        font-size: 24px;
    }

    .banner-text p {
        font-size: 14px;
    }

    .btn-lg {
        padding: 12px 24px;
        font-size: 14px;
    }

    .btn {
        padding: 8px 20px;
        font-size: 14px;
    }

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

    .feature-mini-grid {
        grid-template-columns: 1fr;
    }

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

    .stat-item {
        padding: 8px 10px;
    }

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

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

    .contact-form {
        padding: 24px;
    }

    .page-banner {
        height: 180px;
        padding-top: 70px;
    }

    .page-banner h1 {
        font-size: 22px;
    }

    .product-card-img {
        height: 160px;
    }

    .news-card-img,
    .case-card-img {
        height: 160px;
    }

    .banner-btns {
        flex-direction: column;
        align-items: center;
    }

    .banner-dots {
        bottom: 16px;
    }

    .dot {
        width: 10px;
        height: 10px;
    }
}


/* ===== 30. 动画 ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
}

.animate-in.animated {
    opacity: 1;
    transform: translateY(0);
}

.fade-in {
    animation: fadeIn .6s ease forwards;
}

.slide-up {
    animation: slideUp .6s ease forwards;
}

/* 延迟动画 */
.animate-delay-1 { transition-delay: .1s; }
.animate-delay-2 { transition-delay: .2s; }
.animate-delay-3 { transition-delay: .3s; }
.animate-delay-4 { transition-delay: .4s; }
.animate-delay-5 { transition-delay: .5s; }


/* ===== 打印样式 ===== */
@media print {
    .top-bar,
    .header,
    .banner-section,
    .stats-section,
    .cta-section,
    .back-to-top,
    .fixed-side,
    .footer {
        display: none;
    }

    body {
        color: #000;
        background: #fff;
    }

    .section {
        padding: 20px 0;
    }
}