/* 凯博智能科技官网 - 简约科技风格 */

/* CSS变量 - 科技深色主题 */
:root {
    --primary-blue: #0066CC;
    --primary-strong: #0052A3;
    --secondary-blue: #3399FF;
    --accent-blue: #6C5CE7;
    --dark-blue: #0A1A33;
    --dark-surface: #0f172a;
    --light-blue: #E6F2FF;
    --text-dark: #0F1A2A;
    --text-gray: #5C6675;
    --text-light: #8A94A6;
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --border-color: #E1E7EF;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.12);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --container-max: 1200px;
}

/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--bg-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 容器和布局 */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 72px;
}

.section {
    padding: 110px 0;
}

.chapter-compact {
    padding: 72px 0 56px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 18px;
}

.contact-card {
    background: #ffffff;
    border: 1px solid rgba(18, 47, 78, 0.08);
    border-radius: 16px;
    padding: 22px;
    box-shadow: 0 10px 24px rgba(12, 32, 54, 0.08);
}

.contact-card h3 {
    margin: 0 0 14px;
    font-size: 20px;
    color: #0f1f33;
}

.contact-list {
    list-style: none;
    padding: 0;
    margin: 0 0 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-list li {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 10px;
    font-size: 15px;
    color: #273345;
}

.contact-label {
    color: #526071;
    font-weight: 600;
}

.contact-cta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
}

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

.form-input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid rgba(18, 47, 78, 0.12);
    border-radius: 10px;
    font-size: 15px;
    color: #0f1f33;
    background: #f9fbff;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: rgba(0, 102, 204, 0.28);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.12);
    background: #fff;
}

.form-input::placeholder {
    color: #8aa0b8;
}

.form-input:focus::placeholder {
    color: #6d7f94;
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.form-tip {
    margin: 0;
    color: #526071;
    font-size: 14px;
}
.section-dark {
    background: radial-gradient(circle at 20% 20%, rgba(102, 126, 234, 0.12), transparent 36%), linear-gradient(180deg, #0b1530 0%, #0f1f3f 100%);
    color: white;
    position: relative;
}

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

/* 字体系统 - 更大更清晰 */
.h1 {
    font-size: 64px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 32px;
    letter-spacing: -0.02em;
}

.h2 {
    font-size: 48px;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.h3 {
    font-size: 32px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 20px;
}

.h4 {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 16px;
}

.text-large {
    font-size: 22px;
    line-height: 1.7;
    font-weight: 400;
}

.text-base {
    font-size: 18px;
    line-height: 1.7;
}

.text-small {
    font-size: 16px;
    line-height: 1.6;
}

/* 导航栏 - 简约设计 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    z-index: 1000;
    transition: var(--transition);
    padding: 20px 0;
    border-bottom: 1px solid rgba(225, 231, 239, 0.8);
}

/* 主内容区域 */
.main-content-wrapper {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    padding-top: 96px; /* 预留导航高度，避免内容被遮挡 */
}

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

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

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-mark {
    height: 36px;
    width: auto;
    display: block;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark-blue);
    letter-spacing: -0.01em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 48px;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width 0.3s ease;
}

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

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

.nav-link:focus-visible {
    outline: 2px solid rgba(0, 102, 204, 0.35);
    outline-offset: 4px;
    border-radius: 6px;
}

/* 移动端菜单 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-dark);
    font-size: 28px;
    cursor: pointer;
    padding: 8px;
}

/* Hero区域 - 简约大气 */
.hero {
    min-height: 100vh;
    background:
        linear-gradient(180deg, #0b1530 0%, #0d1d39 100%),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: auto, 140px 140px, 140px 140px;
    background-color: #0b1530;
    display: flex;
    align-items: center;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(0, 102, 204, 0.12) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

/* 首页全新布局 */
.hero-new {
    text-align: left;
    padding: 90px 0 80px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 36px;
    align-items: start;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hero-title {
    font-size: 64px;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: #ffffff;
    margin-bottom: 8px;
}

.hero-subtitle {
    font-size: 22px;
    color: rgba(255, 255, 255, 0.96);
    margin-bottom: 4px;
}

.hero-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    max-width: 720px;
    margin-top: 4px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-top: 4px;
    flex-wrap: wrap;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.metric-item {
    background: rgba(14, 34, 56, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 12px;
    padding: 14px 16px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.metric-number {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #fff;
}

.metric-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.hero-panel {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 24px;
    backdrop-filter: blur(6px);
    box-shadow: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.panel-header h3 {
    font-size: 22px;
    color: #fff;
    margin: 6px 0;
}

.panel-header p {
    color: rgba(255, 255, 255, 0.75);
    margin: 0;
}

.panel-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.panel-item {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 12px;
    align-items: start;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.panel-item h4 {
    color: #fff;
    margin: 0 0 4px;
    font-size: 16px;
}

.panel-item p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    font-size: 14px;
}

.panel-cta {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 12px;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.panel-label {
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    font-weight: 600;
}

.panel-sub {
    color: rgba(255, 255, 255, 0.65);
    margin: 2px 0 0;
    font-size: 14px;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #fff;
    border-radius: 999px;
    font-size: 14px;
    width: fit-content;
}

.pill-outline {
    background: rgba(0, 102, 255, 0.06);
    border: 1px solid rgba(0, 102, 255, 0.22);
    color: #0f1f33;
    font-weight: 700;
}

.badge-soft {
    display: inline-flex;
    padding: 6px 12px;
    background: rgba(0, 102, 204, 0.16);
    color: #d9e6ff;
    border-radius: 999px;
    font-size: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.icon-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(0, 102, 255, 0.12);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.icon-lg {
    width: 56px;
    height: 56px;
    font-size: 24px;
}

.text-muted {
    color: var(--text-gray);
}

/* 亮点模块 */
.highlights {
    background: #f8f9fc;
    padding: 90px 0;
    border-top: 1px solid rgba(225, 231, 239, 0.8);
    border-bottom: 1px solid rgba(225, 231, 239, 0.8);
}

.highlights .section-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.highlights .section-head > div {
    max-width: 640px;
}

.highlights .grid {
    gap: 32px;
}

.eyebrow {
    font-size: 14px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--secondary-blue);
    font-weight: 800;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
    margin-bottom: 8px;
}

/* 深色背景下的标题/副标题增强 */
.section-dark .eyebrow,
.hero .eyebrow {
    color: #eaf1f8;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.section-dark .h1,
.section-dark .h2,
.section-dark .text-large,
.section-dark .text-base {
    color: #f6f9fd;
}

.section-dark .text-muted {
    color: rgba(230, 237, 245, 0.82);
}

.highlight-card {
    background: #fff;
    border: 1px solid rgba(225, 231, 239, 0.9);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 8px 24px rgba(10, 26, 51, 0.06);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 170px;
}

.highlight-card h3 {
    font-size: 20px;
    margin: 12px 0 6px;
}

.highlight-card p {
    color: var(--text-gray);
    margin: 0;
    line-height: 1.7;
}

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

/* 简洁方案卡片 */
.solution-simple-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.solution-head {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 12px;
    align-items: start;
}

.solution-badge {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--bg-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.simple-list {
    list-style: none;
    padding: 0;
    margin: 8px 0 0;
    display: grid;
    gap: 8px;
}

.simple-list li {
    padding-left: 14px;
    position: relative;
    color: var(--text-dark);
    line-height: 1.6;
}

.simple-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
}

.chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.chip {
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--bg-light);
    color: var(--text-gray);
    font-size: 13px;
    border: 1px solid var(--border-color);
}

/* 翻书效果 */
/* 翻页动效：商务风降低倾斜感 */
.page-block {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: var(--shadow-sm);
    position: relative;
    transform: translateY(20px);
    opacity: 0;
    transition: transform 0.45s ease, opacity 0.45s ease, box-shadow 0.35s ease;
    padding: 28px;
    margin-bottom: 28px;
    overflow: hidden;
}

.page-block::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
}

.page-block.page-open {
    transform: translateY(0);
    opacity: 1;
    box-shadow: var(--shadow-md);
}

.page-block + .page-block {
    margin-top: 12px;
}

/* 书本视图导航 */
.book-view {
    position: relative;
    min-height: calc(100vh - 100px);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.book-pages {
    display: flex;
    transition: transform 0.5s ease;
    width: 100%;
}

.book-page {
    min-width: 100%;
    padding: 60px 0;
}

.page-inner {
    height: 100%;
}

.book-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
}

.book-btn {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px 14px;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.book-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.book-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.book-dots {
    display: flex;
    gap: 8px;
}

.book-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    cursor: pointer;
    transition: var(--transition);
}

.book-dots .dot.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
}

.book-dots .dot:hover {
    transform: translateY(-2px);
}

/* 业务模块 */
.business-new .section-head.center {
    text-align: center;
    margin-bottom: 48px;
}

.business-new {
    background: linear-gradient(180deg, #f9fbff 0%, #f3f6fa 100%);
    padding: 90px 0;
}

.business-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.business-row {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 16px;
    align-items: center;
    padding: 18px 22px;
    background: #fff;
    border: 1px solid rgba(18, 47, 78, 0.08);
    border-radius: 14px;
    box-shadow: 0 12px 28px rgba(12, 32, 54, 0.08);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.business-row::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    bottom: 12px;
    width: 4px;
    border-radius: 3px;
    background: linear-gradient(180deg, #3b7cff 0%, #6f90ff 100%);
    opacity: 0.8;
}

.business-row:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 40px rgba(12, 32, 54, 0.14);
    border-color: rgba(0, 102, 204, 0.18);
}

.business-row__icon {
    background: rgba(0, 102, 204, 0.08);
    border: 1px solid rgba(0, 102, 204, 0.12);
    color: var(--primary-blue);
}

.business-row__header {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.business-row__header h3 {
    margin: 0;
    font-size: 20px;
}

.business-row__desc {
    margin: 0;
    color: #4b5665;
}

.business-row__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chip-soft {
    background: rgba(0, 102, 204, 0.08);
    border: 1px solid rgba(0, 102, 204, 0.14);
    color: var(--primary-blue);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.01em;
}

/* 关键数据条 */
.stats-band {
    background: #f4f7fb;
    color: #0f1f33;
    padding: 72px 0;
    border-top: 1px solid #e3e9f2;
    border-bottom: 1px solid #e3e9f2;
}

.stats-band-inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 18px;
    align-items: stretch;
}

.stat-block {
    background: #ffffff;
    border: 1px solid rgba(18, 47, 78, 0.08);
    border-radius: 14px;
    padding: 20px 22px;
    text-align: center;
    box-shadow: 0 10px 26px rgba(12, 32, 54, 0.07);
}

.stat-block .stat-number {
    font-size: 34px;
    color: #0f1f33;
    font-weight: 700;
}

.stat-block .stat-label {
    font-size: 14px;
    color: #4f5c6b;
}

/* 信任背书 */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.trust-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 18px;
    text-align: center;
    font-weight: 600;
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}

/* CTA 区域 */
.cta-band {
    background: linear-gradient(135deg, #0b2238 0%, #1b4f86 100%);
    color: #f5f8fb;
}

.cta-band .text-muted {
    color: rgba(245, 248, 251, 0.92);
}

.cta-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.cta-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn.outline {
    background: transparent;
    color: #0d2a45;
    border: 2px solid rgba(13, 42, 69, 0.4);
}

.btn.outline:hover {
    background: rgba(13, 42, 69, 0.08);
    border-color: rgba(13, 42, 69, 0.6);
    color: var(--primary-strong);
}

/* 深色背景下的描边按钮增强可读性 */
.section-dark .btn.outline,
.cta-band .btn.outline {
    color: #f5f8fb;
    border-color: rgba(245, 248, 251, 0.72);
}

.section-dark .btn.outline:hover,
.cta-band .btn.outline:hover {
    background: rgba(245, 248, 251, 0.14);
    border-color: rgba(245, 248, 251, 0.92);
    color: #ffffff;
}

.hero h1 {
    font-size: 72px;
    margin-bottom: 32px;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.hero .subtitle {
    font-size: 28px;
    margin-bottom: 40px;
    color: #eaf1f8;
    opacity: 0.94;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.hero .description {
    font-size: 20px;
    margin-bottom: 64px;
    color: rgba(234, 241, 248, 0.9);
    line-height: 1.7;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* 按钮样式 - 简约现代 */
.btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 17px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    letter-spacing: 0.01em;
    position: relative;
    isolation: isolate;
}

.btn:focus-visible {
    outline: 2px solid rgba(0, 102, 204, 0.35);
    outline-offset: 3px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #5b6fde 0%, #6b3fb0 100%);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid rgba(13, 42, 69, 0.35);
}

.btn-secondary:hover {
    background: rgba(13, 42, 69, 0.08);
    border-color: rgba(13, 42, 69, 0.55);
    color: var(--primary-strong);
}

.btn-group {
    display: flex;
    gap: 24px;
    justify-content: center;
}

/* 卡片样式 - 简约干净 */
.card {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 48px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

/* 网格布局 */
.grid {
    display: grid;
    gap: 48px;
}

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

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

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

/* 优势展示 */
.advantages {
    padding: 140px 0;
    background: var(--bg-white);
}

.advantage-card {
    text-align: center;
    padding: 0;
}

.advantage-icon {
    font-size: 64px;
    margin-bottom: 32px;
    display: block;
    line-height: 1;
}

.advantage-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.advantage-description {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 18px;
}

/* 业务领域 */
.business-areas {
    padding: 140px 0;
    background: var(--bg-light);
}

.business-card {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 56px 40px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.business-icon {
    font-size: 64px;
    margin-bottom: 32px;
    display: block;
    line-height: 1;
}

.business-title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.business-description {
    color: var(--text-gray);
    margin-bottom: 32px;
    font-size: 18px;
    line-height: 1.7;
}

.business-features {
    list-style: none;
    text-align: left;
}

.business-features li {
    padding: 12px 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 32px;
    font-size: 16px;
    line-height: 1.6;
}

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

/* 统计数据 */
.stats {
    padding: 120px 0;
    background: var(--dark-blue);
    color: white;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 64px;
    margin-top: 64px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--secondary-blue);
    line-height: 1;
}

.stat-label {
    font-size: 20px;
    opacity: 0.9;
    font-weight: 400;
}

/* 客户见证 */
.testimonials {
    padding: 140px 0;
    background: var(--bg-white);
}

.testimonial-card {
    background: var(--bg-light);
    border-radius: 20px;
    padding: 56px;
    border-left: 4px solid var(--primary-blue);
    margin-bottom: 40px;
}

.testimonial-text {
    font-size: 22px;
    line-height: 1.8;
    margin-bottom: 32px;
    font-style: italic;
    color: var(--text-dark);
}

.testimonial-author {
    font-weight: 600;
    color: var(--text-gray);
    font-size: 18px;
}

/* 滚动动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-animate.active {
    opacity: 1;
    transform: translateY(0);
}

/* 解决方案页面 */
.solutions-hero {
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.solutions-hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.solutions-stats {
    display: flex;
    justify-content: center;
    gap: 64px;
    margin-top: 64px;
    flex-wrap: wrap;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 32px 40px;
    text-align: center;
    min-width: 160px;
}

.stat-card .stat-number {
    font-size: 48px;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
}

.stat-card .stat-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
}

.solutions-showcase {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 48px;
}

.solution-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 56px;
    transition: var(--transition);
}

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

.solution-icon {
    font-size: 64px;
    text-align: center;
    margin-bottom: 32px;
}

.solution-header {
    text-align: center;
    margin-bottom: 40px;
}

.solution-header .h3 {
    color: var(--text-dark);
    margin-bottom: 16px;
}

.solution-description {
    color: var(--text-gray);
    font-size: 18px;
    line-height: 1.7;
}

.solution-content {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.solution-section {
    padding: 32px;
    background: var(--bg-light);
    border-radius: 16px;
    border-left: 4px solid var(--primary-blue);
}

.solution-section-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.solution-features,
.solution-applications,
.solution-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 16px;
}

.solution-features li,
.solution-applications li,
.solution-benefits li {
    padding: 12px 0;
    color: var(--text-dark);
    font-size: 16px;
    line-height: 1.7;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.feature-icon,
.app-icon,
.benefit-icon {
    color: var(--primary-blue);
    font-weight: bold;
    flex-shrink: 0;
    margin-top: 4px;
}

.solution-footer {
    margin-top: 40px;
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

.btn-solution-detail {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 16px 40px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-solution-detail:hover {
    background: #0052CC;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 产品服务页面 */
.products-hero {
    min-height: 58vh;
    padding: 72px 0 64px;
    display: flex;
    align-items: flex-start;
}

.products-hero.minimal .products-highlights {
    max-width: 520px;
    margin: 24px auto 0;
    gap: 32px;
}

.products-hero.minimal .highlight-item {
    padding: 20px;
    min-width: 120px;
}

.products-hero.minimal .highlight-icon {
    font-size: 32px;
}

.products-hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.products-highlights {
    display: flex;
    justify-content: center;
    gap: 64px;
    margin-top: 64px;
    flex-wrap: wrap;
}

.highlight-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 32px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    min-width: 140px;
}

.highlight-icon {
    font-size: 48px;
}

.highlight-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    font-weight: 500;
}

.products-showcase {
    padding: 120px 0;
    background: var(--bg-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(550px, 1fr));
    gap: 48px;
}

.product-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 56px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

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

/* 产品 / 服务矩阵 - 商务风格 */
.products-simple {
    background: #f5f7fb;
    border-top: 1px solid #e5ebf3;
    border-bottom: 1px solid #e5ebf3;
}

.products-simple .section-header {
    margin-bottom: 32px;
}

.products-simple .compact-cards {
    gap: 28px;
}

.product-simple-card {
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding: 28px;
    border-radius: 18px;
    background: linear-gradient(180deg, #ffffff 0%, #f9fbff 100%);
    border: 1px solid rgba(19, 45, 75, 0.08);
    box-shadow: 0 12px 30px rgba(15, 35, 55, 0.07);
}

.product-compact {
    position: relative;
    overflow: hidden;
}

.product-compact::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(120% 120% at 10% 10%, rgba(0, 102, 204, 0.08), transparent 45%);
    pointer-events: none;
}

.product-head {
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.product-head h3 {
    color: #0f1f33;
}

.product-head .text-muted {
    color: #4f5c6b;
}

.product-badge-soft {
    align-self: flex-start;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(0, 102, 255, 0.08);
    color: var(--primary-blue);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    border: 1px solid rgba(0, 102, 255, 0.15);
}

.products-list.simple {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
    position: relative;
    z-index: 1;
}

.product-mini {
    padding: 16px;
    border-radius: 14px;
    background: #ffffff;
    border: 1px solid rgba(19, 45, 75, 0.08);
    box-shadow: 0 10px 24px rgba(15, 35, 55, 0.05);
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: var(--transition);
}

.product-mini:hover {
    transform: translateY(-3px);
    border-color: rgba(0, 102, 204, 0.25);
    box-shadow: 0 16px 32px rgba(0, 102, 204, 0.12);
}

.product-mini-title {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #0f1f33;
    font-weight: 700;
}

.product-mini-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, #f4f7fb 0%, #ffffff 100%);
    border: 1px solid rgba(0, 102, 204, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--primary-blue);
    font-weight: 700;
}

.product-mini .text-muted {
    color: #516072;
}

.product-mini .simple-list {
    margin: 0;
    padding-left: 0;
}

.product-mini .simple-list li {
    list-style: none;
    position: relative;
    padding-left: 16px;
    color: #273345;
}

.product-mini .simple-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.12);
}

.product-mini .chip-row {
    margin-top: 4px;
}

/* 通用章节样式 */
.chapter-hero {
    text-align: center;
    padding: 36px 0 14px;
}

.chapter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 18px;
}

.chapter-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 22px;
    box-shadow: var(--shadow-sm);
}

.chapter-card h3 {
    margin: 0 0 10px;
    font-size: 21px;
    color: var(--text-dark);
}

.chapter-card p {
    margin: 0 0 14px;
    color: var(--text-gray);
    line-height: 1.65;
}

.chapter-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
    font-size: 13px;
    color: var(--text-gray);
}

.chapter-stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.chapter-stat {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px;
}

.chapter-stat .stat-number {
    font-weight: 700;
    color: var(--text-dark);
    display: block;
}

.chapter-stat .stat-label {
    color: var(--text-gray);
    font-size: 13px;
}

.product-icon {
    font-size: 64px;
    text-align: center;
    margin-bottom: 32px;
}

.product-header {
    text-align: center;
    margin-bottom: 40px;
}

.product-description {
    color: var(--text-gray);
    font-size: 18px;
    line-height: 1.7;
    margin-top: 16px;
}

.product-content {
    margin-top: 40px;
    flex: 1;
}

.product-section {
    margin-bottom: 32px;
    padding: 32px;
    background: var(--bg-light);
    border-radius: 16px;
}

.product-section-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.product-item {
    padding: 24px;
    background: var(--bg-white);
    border-radius: 12px;
    border-left: 4px solid var(--primary-blue);
}

.product-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.product-desc {
    color: var(--text-gray);
    font-size: 16px;
    margin-bottom: 20px;
    line-height: 1.7;
}

.product-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-features li {
    padding: 8px 0;
    color: var(--text-dark);
    font-size: 16px;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.product-features li::before {
    content: '●';
    color: var(--primary-blue);
    flex-shrink: 0;
    margin-top: 6px;
}

.product-applications {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.applications-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
}

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

.applications-list li {
    padding: 8px 0;
    color: var(--text-gray);
    font-size: 16px;
    line-height: 1.6;
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-icon {
    color: var(--primary-blue);
}

.product-footer {
    margin-top: auto;
    padding-top: 32px;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.btn-product-contact {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 16px 40px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-product-contact:hover {
    background: #0052CC;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.products-cta {
    margin-top: 80px;
    text-align: center;
    padding: 64px;
    background: var(--dark-blue);
    border-radius: 24px;
    color: white;
}

.products-cta .text-muted {
    color: rgba(245, 248, 251, 0.92);
}

.cta-content h3 {
    color: white;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.btn-cta-primary {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 18px 48px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-cta-primary:hover {
    background: #0052CC;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 案例页面 */
.case-header {
    margin-bottom: 24px;
}

.case-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 16px;
}

.badge {
    background: var(--primary-blue);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.case-details {
    margin-top: 32px;
}

.detail-section {
    margin-bottom: 32px;
}

.detail-section .h4 {
    color: var(--text-dark);
    margin-bottom: 16px;
}

.case-footer {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.case-stats {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}

.case-stats .stat-item {
    font-size: 16px;
    color: var(--text-gray);
}

/* 关于我们页面 */
.about-intro {
    margin-bottom: 80px;
}

.company-overview {
    display: flex;
    flex-direction: column;
    gap: 64px;
    margin-top: 64px;
}

.company-description {
    text-align: center;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 64px;
}

.stat-item {
    text-align: center;
    padding: 40px;
    background: var(--bg-light);
    border-radius: 16px;
}

.stat-value {
    font-size: 40px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 12px;
}

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

.mission-vision .card h3 {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 64px;
}

.value-item {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 16px;
    border-left: 4px solid var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

.value-title {
    color: var(--text-dark);
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
}

.value-description {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 18px;
}

.timeline {
    position: relative;
    margin-top: 36px;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
}

.timeline::before {
    display: none;
}

.timeline-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 0;
    padding: 16px;
    position: relative;
    background: #ffffff;
    border: 1px solid rgba(18, 47, 78, 0.08);
    border-radius: 14px;
    box-shadow: 0 10px 22px rgba(12, 32, 54, 0.08);
}

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

.timeline-year {
    background: rgba(0, 102, 204, 0.12);
    color: #0f1f33;
    padding: 10px 14px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 16px;
    min-width: 0;
    text-align: left;
    width: fit-content;
}

.timeline-content {
    background: transparent;
    padding: 0;
    border-radius: 12px;
    box-shadow: none;
    flex: 1;
}

.timeline-title {
    color: var(--text-dark);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

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

.qualification-list,
.honor-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.qualification-list li,
.honor-list li {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-dark);
    font-size: 16px;
}

.qualification-list li:last-child,
.honor-list li:last-child {
    border-bottom: none;
}

.qualification-list li i,
.honor-list li i {
    color: var(--primary-blue);
    font-size: 20px;
}

/* 新闻页面 */
.news-categories {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.category-btn {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    color: var(--text-gray);
    padding: 12px 32px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 16px;
    font-weight: 500;
}

.category-btn:hover,
.category-btn.active {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 18px;
}

.news-card {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 24px rgba(12, 32, 54, 0.08);
    border: 1px solid rgba(18, 47, 78, 0.08);
    transition: var(--transition);
    position: relative;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 34px rgba(12, 32, 54, 0.14);
}

.news-image-container {
    height: 220px;
    overflow: hidden;
    position: relative;
    background: var(--bg-light);
}

.news-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
}

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

.news-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.news-placeholder i {
    font-size: 64px;
    opacity: 0.3;
}

.news-content {
    padding: 26px;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.news-category {
    background: var(--primary-blue);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.news-date {
    color: var(--text-gray);
    font-size: 14px;
}

.news-title {
    color: #0f1f33;
    font-size: 21px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-summary {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 18px;
    font-size: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.news-author,
.news-views {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-gray);
    font-size: 14px;
}

.read-more-btn {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.read-more-btn:hover {
    background: #0052CC;
    transform: translateX(4px);
}

/* 页脚样式 */
.footer {
    background: var(--dark-blue);
    color: white;
    padding: 80px 0 40px;
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 64px;
    margin-bottom: 64px;
}

.footer-column {
    display: flex;
    flex-direction: column;
}

.footer-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary-blue);
    margin-bottom: 24px;
}

.footer-heading {
    font-size: 18px;
    font-weight: 600;
    color: white;
    margin-bottom: 24px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    font-size: 16px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 16px;
    transition: var(--transition);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--secondary-blue);
    transform: translateX(4px);
}

.footer-contact {
    color: rgba(255, 255, 255, 0.7);
    line-height: 2;
    font-size: 16px;
}

.footer-contact p {
    margin-bottom: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin: 0;
}

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

.footer-links-bottom a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-links-bottom a:hover {
    color: var(--secondary-blue);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 56px;
    height: 56px;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
    transition: var(--transition);
    font-size: 24px;
    font-weight: 600;
}

.back-to-top:hover {
    background: #0052CC;
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.back-to-top span {
    line-height: 1;
}

/* 页面加载动画 */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-blue);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    transition: opacity 0.5s ease;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(51, 153, 255, 0.3);
    border-top: 3px solid var(--secondary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 24px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loader-text {
    color: white;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    animation: pulse 1.5s ease-in-out infinite;
}

.loader-subtext {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

@keyframes pulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

/* 文本居中工具类 */
.text-center {
    text-align: center;
}

/* -------------------- */
/* 商务风格整体优化覆写 */
/* -------------------- */
:root {
    --primary-blue: #0d2a45;
    --primary-strong: #0b2238;
    --secondary-blue: #1d67aa;
    --accent-blue: #3b82c4;
    --dark-blue: #0a1a2d;
    --dark-surface: #0f1f33;
    --light-blue: #e9eff6;
    --text-dark: #1d2430;
    --text-gray: #3f4754;
    --text-light: #606b79;
    --bg-white: #ffffff;
    --bg-light: #f2f5f9;
    --border-color: #cfd8e3;
    --shadow-sm: 0 4px 12px rgba(13, 42, 69, 0.06);
    --shadow-md: 0 12px 32px rgba(13, 42, 69, 0.1);
    --shadow-lg: 0 18px 42px rgba(13, 42, 69, 0.12);
    --gradient-primary: linear-gradient(135deg, #0d2a45 0%, #1d67aa 100%);
}

body {
    background: #f7f9fc;
    color: var(--text-dark);
}

.navbar {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

.logo {
    letter-spacing: 0;
    font-weight: 700;
}

.nav-link {
    font-weight: 600;
    color: #1f2733;
}

.hero {
    background: linear-gradient(145deg, #0b2036 0%, #123153 100%);
    text-align: left;
    padding-top: 90px;
    background-size: cover;
}

.products-hero {
    background: linear-gradient(140deg, #0d1e32 0%, #0f2c4c 60%, #123a63 100%);
    position: relative;
    overflow: hidden;
}

.products-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(160% 120% at 20% 10%, rgba(86, 143, 255, 0.14), transparent 35%), radial-gradient(120% 120% at 80% 20%, rgba(118, 75, 162, 0.12), transparent 32%);
    pointer-events: none;
}

.products-hero .hero-title {
    color: #f3f7fb;
}

.products-hero .hero-subtitle,
.products-hero .hero-description {
    color: rgba(237, 244, 252, 0.88);
}

.hero-business .hero-grid {
    align-items: start;
    gap: 40px;
}

.hero-panel-compact {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.18);
    padding: 18px;
    gap: 12px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.panel-list-tight .panel-item {
    padding: 6px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.panel-result {
    margin: 6px 0 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.trust-strip {
    background: #0d1f33;
    color: #e6edf5;
    padding: 26px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.trust-strip-inner {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.trust-strip-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.trust-pill {
    padding: 8px 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #dfe7f0;
    font-size: 14px;
}

.pain-solution .compact-cards {
    gap: 20px;
}

.highlight-compact {
    border-radius: 12px;
    padding: 20px;
    min-height: 0;
}

.highlight-compact .icon-circle {
    background: rgba(15, 42, 67, 0.08);
    border: 1px solid rgba(15, 42, 67, 0.12);
    color: var(--primary-blue);
}

.result-tag {
    margin-top: 10px;
    display: inline-block;
    padding: 6px 10px;
    border-radius: 8px;
    background: rgba(15, 90, 146, 0.08);
    color: var(--primary-blue);
    font-size: 13px;
    border: 1px solid rgba(15, 90, 146, 0.16);
}

.business-lean .business-row {
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.business-lean .business-row__chips .chip {
    border-radius: 8px;
}

.cta-business {
    background: linear-gradient(135deg, #0f2a43 0%, #1f5a92 100%);
}

.cta-business .btn.outline {
    border-color: rgba(255, 255, 255, 0.72);
    color: #f5f8fb;
}

.compact-cards .highlight-card h3 {
    margin: 8px 0 6px;
}

.compact-cards .highlight-card p {
    margin: 0;
}

@media (max-width: 1024px) {
    .trust-strip-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 44px;
    }
    .trust-strip {
        padding: 22px 0;
    }
}

.hero::before {
    background: linear-gradient(120deg, rgba(255, 255, 255, 0.05) 0%, rgba(12, 29, 45, 0.08) 100%);
}

.hero-title {
    font-size: 56px;
    line-height: 1.2;
    color: #f4f6f9;
}

.hero-subtitle,
.hero-description {
    color: rgba(244, 246, 249, 0.85);
}

.pill,
.pill-outline {
    background: rgba(13, 42, 69, 0.08);
    border: 1px solid rgba(13, 42, 69, 0.22);
    color: #0d2a45;
}

.pill-outline {
    background: rgba(13, 42, 69, 0.04);
}

.hero-panel {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: none;
    backdrop-filter: blur(10px);
}

.card,
.solution-card,
.product-card,
.chapter-card,
.highlight-card,
.business-row,
.trust-card,
.news-card {
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.card:hover,
.solution-card:hover,
.product-card:hover,
.highlight-card:hover,
.business-row:hover,
.news-card:hover {
    box-shadow: var(--shadow-md);
}

.btn {
    border-radius: 10px;
    letter-spacing: 0;
    box-shadow: none;
}

.btn-primary {
    background: var(--gradient-primary);
}

.btn-secondary {
    color: var(--primary-blue);
    border: 1.5px solid rgba(15, 42, 67, 0.3);
}

.btn.secondary,
.btn-secondary.outline {
    border-color: rgba(255, 255, 255, 0.4);
}

.icon-circle {
    width: 44px;
    height: 44px;
    font-size: 18px;
    background: rgba(15, 42, 67, 0.06);
    color: var(--primary-blue);
    border: 1px solid rgba(15, 42, 67, 0.12);
}

.metric-item,
.stat-block {
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.14);
}

.highlights,
.business-new,
.products-showcase,
.solutions-showcase,
.section-light {
    background: #f5f7fa;
}

.footer {
    background: #0c1d2d;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-title {
    color: #b5c7dd;
}

.footer-links a,
.footer-contact,
.footer-bottom p {
    color: rgba(226, 234, 244, 0.8);
}

.page-loader {
    background: #0c1d2d;
}

.book-btn,
.chip,
.chip-soft {
    border-radius: 8px;
}

.business-row {
    gap: 12px;
    padding: 18px 18px;
}

.news-card .news-image-container {
    background: #dfe6ef;
}

/* 响应式设计 */
@media (max-width: 1280px) {
    .container {
        padding: 0 60px;
    }
    
    .h1 {
        font-size: 56px;
    }
    
    .h2 {
        font-size: 42px;
    }
}

@media (max-width: 1024px) {
    .container {
        padding: 0 48px;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .h1 {
        font-size: 48px;
    }
    
    .h2 {
        font-size: 36px;
    }
    
    .hero h1 {
        font-size: 56px;
    }
    
    .hero .subtitle {
        font-size: 24px;
    }
    
    .hero .description {
        font-size: 18px;
    }
    
    .nav-menu {
        gap: 32px;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .hero-title {
        font-size: 48px;
    }

    .hero-panel {
        order: -1;
    }

    .highlights .section-head {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .h1 {
        font-size: 40px;
    }
    
    .h2 {
        font-size: 32px;
    }
    
    .h3 {
        font-size: 28px;
    }
    
    .hero {
        min-height: 80vh;
        padding-top: 120px;
    }
    
    .hero h1 {
        font-size: 40px;
    }
    
    .hero .subtitle {
        font-size: 20px;
    }
    
    .hero .description {
        font-size: 16px;
    }
    
    .btn {
        padding: 16px 32px;
        font-size: 16px;
    }
    
    .btn-group {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 24px;
        box-shadow: var(--shadow-md);
        border-top: 1px solid var(--border-color);
        gap: 0;
        z-index: 1001;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 0;
    }
    
    .nav-menu .nav-link {
        display: block;
        padding: 16px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu .nav-link:last-child {
        border-bottom: none;
    }
    
    .card {
        padding: 32px 24px;
    }
    
    .business-card {
        padding: 40px 24px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .stat-number {
        font-size: 48px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 8px;
    }
    
    .timeline-item {
        padding-left: 40px;
    }
    
    .timeline-item::before {
        left: 2px;
    }
    
    .timeline-year {
        font-size: 16px;
        padding: 8px 16px;
        min-width: 80px;
        margin-right: 16px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links-bottom {
        justify-content: center;
    }
    
    .back-to-top {
        bottom: 24px;
        right: 24px;
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero .subtitle {
        font-size: 18px;
    }
    
    .card {
        padding: 24px 20px;
    }
    
    .solution-card,
    .product-card {
        padding: 32px 24px;
    }
}