/* ========================================
   飞书AI落地服务官网 - 全站统一样式
   科技简约 · 专业稳重 · 高转化设计
   ======================================== */

/* === CSS 变量 === */
:root {
    /* 主色系 - 科技蓝 */
    --primary: #165DFF;
    --primary-dark: #0E42D2;
    --primary-light: #4080FF;
    --primary-lighter: #E8F0FF;
    --primary-gradient: linear-gradient(135deg, #165DFF 0%, #0E42D2 100%);

    /* 辅助色 */
    --accent: #00B42A;
    --accent-light: #E8FFEA;
    --warning: #FF7D00;
    --danger: #F53F3F;

    /* 中性色 */
    --text-primary: #1D2129;
    --text-regular: #4E5969;
    --text-secondary: #86909C;
    --text-placeholder: #C9CDD4;
    --border-color: #E5E6EB;
    --border-light: #F2F3F5;
    --bg-page: #F7F8FA;
    --bg-white: #FFFFFF;
    --bg-gray: #FAFBFC;

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
    --shadow-blue: 0 4px 16px rgba(22, 93, 255, 0.25);

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* 布局 */
    --container-width: 1200px;
    --header-height: 72px;

    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text-primary);
    background: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
}

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

/* === 容器 === */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* === 通用按钮 === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition);
    white-space: nowrap;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(22, 93, 255, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-white {
    background: #fff;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 18px;
}

/* === 通用标题 === */
.section {
    padding: 80px 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header .eyebrow {
    display: inline-block;
    font-size: 14px;
    color: var(--primary);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
    padding: 4px 16px;
    background: var(--primary-lighter);
    border-radius: 20px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-header p {
    font-size: 16px;
    color: var(--text-regular);
    max-width: 640px;
    margin: 0 auto;
}

/* === 顶部导航 === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

.header .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 22px;
}

.logo-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-menu a {
    padding: 8px 18px;
    font-size: 15px;
    color: var(--text-regular);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.nav-menu a:hover {
    color: var(--primary);
    background: var(--primary-lighter);
}

.nav-menu a.active {
    color: var(--primary);
    background: var(--primary-lighter);
    font-weight: 600;
}

.header-cta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    color: var(--text-primary);
    font-weight: 600;
}

.header-phone .phone-icon {
    width: 20px;
    height: 20px;
    color: var(--primary);
}

.btn-header {
    padding: 10px 24px;
    font-size: 14px;
}

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

.mobile-menu-btn span {
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* === 首屏 Banner === */
.hero {
    position: relative;
    min-height: 640px;
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #0E42D2 0%, #165DFF 50%, #1A6BFF 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -300px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0,180,42,0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    color: #fff;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: #00FF88;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.hero h1 .highlight {
    background: linear-gradient(90deg, #FFD669, #FFAB00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.hero-stat .num {
    font-size: 36px;
    font-weight: 800;
    color: #fff;
    line-height: 1;
}

.hero-stat .num .plus {
    font-size: 24px;
    color: #FFD669;
}

.hero-stat .label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 8px;
}

/* 首屏右侧视觉 */
.hero-visual {
    position: relative;
    height: 420px;
}

.hero-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    padding: 24px;
    color: #fff;
    transition: var(--transition);
}

.hero-card-1 {
    top: 0;
    right: 0;
    width: 280px;
    animation: float 4s ease-in-out infinite;
}

.hero-card-2 {
    top: 140px;
    left: 0;
    width: 240px;
    animation: float 4s ease-in-out infinite 1s;
}

.hero-card-3 {
    bottom: 0;
    right: 40px;
    width: 260px;
    animation: float 4s ease-in-out infinite 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.hero-card .card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    font-size: 24px;
}

.hero-card h4 {
    font-size: 16px;
    margin-bottom: 6px;
}

.hero-card p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

/* === 核心优势卡片 === */
.advantages {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.advantage-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

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

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

.advantage-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    background: var(--primary-lighter);
}

.advantage-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

/* === 主营业务 === */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-item {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px;
    display: flex;
    gap: 24px;
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

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

.service-item-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
}

.service-item-body h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.service-item-body p {
    font-size: 14px;
    color: var(--text-regular);
    line-height: 1.7;
    margin-bottom: 16px;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-tag {
    font-size: 12px;
    padding: 4px 12px;
    background: var(--primary-lighter);
    color: var(--primary);
    border-radius: 4px;
    font-weight: 500;
}

/* === 案例卡片 === */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

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

.case-image {
    height: 200px;
    background: var(--primary-gradient);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.case-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(14,66,210,0.3) 0%, rgba(22,93,255,0.1) 100%);
}

.case-image .case-icon {
    font-size: 48px;
    color: rgba(255, 255, 255, 0.9);
    z-index: 1;
}

.case-industry {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 4px 14px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    z-index: 2;
}

.case-body {
    padding: 24px;
}

.case-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.case-body p {
    font-size: 14px;
    color: var(--text-regular);
    line-height: 1.6;
    margin-bottom: 16px;
}

.case-result {
    display: flex;
    gap: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.case-result-item .num {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
}

.case-result-item .label {
    font-size: 12px;
    color: var(--text-secondary);
}

/* === 新闻列表 === */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* 首页新闻压缩版 */
.section-news-compact {
    padding: 48px 0;
}
.section-news-compact .section-header {
    margin-bottom: 28px;
}
.section-news-compact .section-header h2 {
    font-size: 28px;
    margin-bottom: 8px;
}
.section-news-compact .section-header p {
    font-size: 14px;
}
.section-news-compact .news-grid {
    gap: 20px;
}
.section-news-compact .news-image {
    height: 120px;
    font-size: 32px;
}
.section-news-compact .news-body {
    padding: 16px 18px;
}
.section-news-compact .news-card h3 {
    font-size: 15px;
    margin-bottom: 8px;
}
.section-news-compact .news-card p {
    font-size: 13px;
    -webkit-line-clamp: 1;
}
.section-news-compact .news-meta {
    margin-bottom: 8px;
}

.news-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

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

.news-image {
    height: 180px;
    background: linear-gradient(135deg, var(--primary-lighter) 0%, var(--bg-page) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
}

.news-body {
    padding: 24px;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.news-category {
    font-size: 12px;
    padding: 2px 10px;
    background: var(--primary-lighter);
    color: var(--primary);
    border-radius: 4px;
    font-weight: 500;
}

.news-date {
    font-size: 13px;
    color: var(--text-secondary);
}

.news-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card p {
    font-size: 14px;
    color: var(--text-regular);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* === CTA 咨询区块 === */
.cta-section {
    background: var(--primary-gradient);
    padding: 64px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-section h2 {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* === 页脚 === */
.footer {
    background: #0F1419;
    color: rgba(255, 255, 255, 0.65);
    padding: 64px 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
    max-width: 320px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    margin-bottom: 12px;
}

.footer-contact-item .icon {
    color: var(--primary-light);
}

.footer-col h4 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
}

.footer-col ul li a:hover {
    color: #fff;
}

.footer-bottom {
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* === 浮动按钮 === */
.float-actions {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.float-btn-phone {
    background: var(--primary-gradient);
    color: #fff;
}

.float-btn-phone:hover {
    transform: scale(1.1);
}

.float-btn-phone .tooltip {
    position: absolute;
    right: 70px;
    white-space: nowrap;
    background: var(--text-primary);
    color: #fff;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.float-btn-phone:hover .tooltip {
    opacity: 1;
}

.float-btn-top {
    background: #fff;
    color: var(--text-regular);
    border: 1px solid var(--border-color);
}

.float-btn-top:hover {
    color: var(--primary);
    border-color: var(--primary);
}

/* === 页面 Banner (内页通用) === */
.page-banner {
    background: var(--primary-gradient);
    padding: 120px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.page-banner .container {
    position: relative;
    z-index: 2;
}

.page-banner h1 {
    font-size: 40px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.page-banner p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a:hover {
    color: #fff;
}

/* === 服务流程 === */
.process-flow {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    position: relative;
}

.process-flow::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-lighter), var(--primary), var(--primary-lighter));
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 2;
}

.process-step-num {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--primary);
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.process-step h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 13px;
    color: var(--text-regular);
    line-height: 1.6;
}

/* === 案例筛选 === */
.case-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    background: #fff;
    color: var(--text-regular);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* === 新闻分类 === */
.news-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 40px;
}

.news-sidebar {
    position: sticky;
    top: 100px;
}

.news-sidebar h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--primary);
}

.news-category-list li {
    margin-bottom: 8px;
}

.news-category-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    color: var(--text-regular);
}

.news-category-list a:hover,
.news-category-list a.active {
    background: var(--primary-lighter);
    color: var(--primary);
    font-weight: 600;
}

.news-category-list .count {
    font-size: 13px;
    color: var(--text-secondary);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.news-item {
    display: flex;
    gap: 24px;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.news-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.news-item-image {
    flex-shrink: 0;
    width: 240px;
    height: 160px;
    background: linear-gradient(135deg, var(--primary-lighter) 0%, var(--bg-page) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
}

.news-item-body {
    flex: 1;
    padding: 20px 24px 20px 0;
}

.news-item-body h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-item-body p {
    font-size: 14px;
    color: var(--text-regular);
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-item-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

/* === 分页 === */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
}

.pagination a {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-regular);
    background: #fff;
    border: 1px solid var(--border-color);
    padding: 0 12px;
}

.pagination a:hover,
.pagination a.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* === 新闻详情 === */
.news-detail {
    max-width: 800px;
    margin: 0 auto;
}

.news-detail-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-light);
}

.news-detail-header h1 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 20px;
}

.news-detail-meta {
    display: flex;
    justify-content: center;
    gap: 24px;
    font-size: 14px;
    color: var(--text-secondary);
}

.news-detail-cover {
    height: 400px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary-lighter) 0%, var(--bg-page) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    margin-bottom: 40px;
}

.news-detail-content {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-primary);
}

.news-detail-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 40px 0 20px;
}

.news-detail-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 32px 0 16px;
}

.news-detail-content p {
    margin-bottom: 20px;
}

.news-detail-content ul,
.news-detail-content ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.news-detail-content ul li,
.news-detail-content ol li {
    margin-bottom: 10px;
    line-height: 1.8;
}

.news-detail-content ul li {
    list-style: disc;
}

.news-detail-content ol li {
    list-style: decimal;
}

.news-detail-content blockquote {
    border-left: 4px solid var(--primary);
    padding: 16px 24px;
    background: var(--primary-lighter);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: 24px;
    color: var(--text-regular);
}

.news-detail-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 60px;
    padding-top: 32px;
    border-top: 1px solid var(--border-light);
}

.news-detail-nav a {
    font-size: 15px;
    color: var(--text-regular);
    max-width: 45%;
}

.news-detail-nav a:hover {
    color: var(--primary);
}

/* === 关于我们 === */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-intro-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
}

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

.about-intro-visual {
    height: 400px;
    border-radius: var(--radius-xl);
    background: var(--primary-gradient);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-intro-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 40px 40px;
}

.about-intro-visual .stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    position: relative;
    z-index: 2;
    padding: 40px;
}

.about-stat {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 28px;
    text-align: center;
    color: #fff;
}

.about-stat .num {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 8px;
}

.about-stat .label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

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

.team-card {
    text-align: center;
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 36px 24px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

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

.team-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 16px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #fff;
    font-weight: 700;
}

.team-card h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}

.team-card .role {
    font-size: 14px;
    color: var(--primary);
    margin-bottom: 12px;
}

.team-card p {
    font-size: 13px;
    color: var(--text-regular);
    line-height: 1.6;
}

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

.value-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

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

.value-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--primary-lighter);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
}

.value-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

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

/* === 联系页 === */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info-card {
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    padding: 48px;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.contact-info-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.contact-info-card > * {
    position: relative;
    z-index: 2;
}

.contact-info-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.contact-info-card > p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-info-list {
    margin-bottom: 32px;
}

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

.contact-info-item .icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-info-item .label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 4px;
}

.contact-info-item .value {
    font-size: 17px;
    font-weight: 600;
}

/* 表单 */
.contact-form-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 48px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.contact-form-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.contact-form-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

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

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

.form-group label .required {
    color: var(--danger);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 15px;
    color: var(--text-primary);
    background: var(--bg-gray);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
}

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

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

.form-submit {
    width: 100%;
    padding: 16px;
    font-size: 16px;
}

/* === Toast 提示 === */
.toast {
    position: fixed;
    top: 90px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: #fff;
    padding: 16px 32px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 15px;
    z-index: 10000;
    opacity: 0;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    border-left: 4px solid var(--accent);
}

.toast .toast-icon {
    color: var(--accent);
    font-size: 20px;
}

/* === 动画 === */
.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

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

/* === 响应式 === */
@media (max-width: 1024px) {
    .hero h1 { font-size: 40px; }
    .hero-visual { display: none; }
    .hero .container { grid-template-columns: 1fr; }
    .advantages { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .values-grid { grid-template-columns: 1fr; }
    .about-intro { grid-template-columns: 1fr; }
    .contact-layout { grid-template-columns: 1fr; }
    .news-layout { grid-template-columns: 1fr; }
    .news-sidebar { position: static; }
    .news-item-image { width: 180px; }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    .container { padding: 0 16px; }

    /* 导航 */
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px;
        gap: 4px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-200%);
        transition: var(--transition);
        max-height: calc(100vh - var(--header-height));
        overflow-y: auto;
    }

    .nav-menu.open {
        transform: translateY(0);
    }

    .nav-menu a {
        width: 100%;
        padding: 14px 16px;
    }

    .header-phone { display: none; }
    .btn-header { display: none; }
    .mobile-menu-btn { display: flex; }

    /* Hero */
    .hero {
        min-height: auto;
        padding: 100px 0 48px;
    }
    .hero h1 { font-size: 30px; }
    .hero-subtitle { font-size: 16px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .hero-stats { gap: 24px; }
    .hero-stat .num { font-size: 28px; }

    /* Section */
    .section { padding: 48px 0; }
    .section-header h2 { font-size: 26px; }
    .section-header { margin-bottom: 32px; }

    /* Grid */
    .advantages { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; gap: 24px; }
    .team-grid { grid-template-columns: 1fr; }

    /* Service */
    .service-item { flex-direction: column; padding: 24px; }

    /* Process */
    .process-flow {
        flex-direction: column;
        gap: 32px;
    }
    .process-flow::before { display: none; }

    /* CTA */
    .cta-section h2 { font-size: 24px; }
    .cta-section p { font-size: 15px; }
    .cta-actions { flex-direction: column; }
    .cta-actions .btn { width: 100%; }

    /* News item */
    .news-item { flex-direction: column; }
    .news-item-image { width: 100%; height: 180px; }
    .news-item-body { padding: 20px; }

    /* News detail */
    .news-detail-header h1 { font-size: 22px; }
    .news-detail-cover { height: 240px; }
    .news-detail-content { font-size: 15px; }

    /* Contact */
    .contact-info-card, .contact-form-card { padding: 28px; }
    .form-row { grid-template-columns: 1fr; }

    /* Page banner */
    .page-banner { padding: 90px 0 40px; }
    .page-banner h1 { font-size: 28px; }
    .page-banner p { font-size: 15px; }

    /* About */
    .about-intro-visual { height: 300px; }
    .about-stat .num { font-size: 28px; }

    /* Float */
    .float-actions { right: 16px; bottom: 16px; }
    .float-btn { width: 48px; height: 48px; }
}