/* ============================================================
   kejiwang 科技企业官网模板 v1.3
   ============================================================ */

/* ========== 重置与基础样式 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica,
                 Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: #4E5969;
    background-color: #FFFFFF;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; transition: all 0.25s ease; }
a:hover { color: #165DFF; }

ul, ol { list-style: none; }

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

button { border: none; background: none; cursor: pointer; font-family: inherit; }

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

h1, h2, h3, h4, h5, h6 { color: #1D2129; font-weight: 600; line-height: 1.3; }

/* ========== 通用工具类 ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
    cursor: pointer;
    transition: all 0.25s ease;
    border: 1px solid transparent;
    text-align: center;
}

.btn-sm { padding: 8px 20px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary {
    background: linear-gradient(135deg, #165DFF 0%, #00B4FF 100%);
    color: #FFFFFF;
    box-shadow: 0 4px 14px rgba(22, 93, 255, 0.35);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(22, 93, 255, 0.45);
    color: #FFFFFF;
}

.btn-outline {
    background: transparent;
    border-color: #165DFF;
    color: #165DFF;
}
.btn-outline:hover {
    background: #165DFF;
    color: #FFFFFF;
}

.btn-light {
    background: #FFFFFF;
    color: #165DFF;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}
.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    color: #165DFF;
}

/* 区块标题 */
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: #E8F3FF;
    color: #165DFF;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
}
.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}
.section-desc {
    font-size: 16px;
    color: #86909C;
    max-width: 600px;
    margin: 0 auto;
}

/* ========== 顶部导航 ========== */
.site-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 20px 0;
}

.site-navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    padding: 12px 0;
}

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

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

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

.logo-icon { width: 40px; height: 40px; display: block; flex-shrink: 0; }
.logo-icon svg { width: 40px; height: 40px; display: block; }

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: #1D2129;
    letter-spacing: 0.5px;
}

.site-navbar.scrolled .logo-text { color: #1D2129; }

.nav-center .nav-menu {
    display: flex;
    gap: 36px;
}

.nav-center .nav-menu a {
    color: #4E5969;
    font-size: 15px;
    font-weight: 500;
    position: relative;
    padding: 8px 0;
}

.nav-center .nav-menu a:hover,
.nav-center .nav-menu a.active {
    color: #165DFF;
}

.nav-center .nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #165DFF;
    border-radius: 2px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

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

.phone-icon { width: 18px; height: 18px; }
.phone-icon svg { width: 100%; height: 100%; }

.phone-number {
    font-size: 15px;
    font-weight: 600;
    color: #1D2129;
}

/* 汉堡按钮 */
.hamburger-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 1001;
}

.hamburger-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: #1D2129;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 移动端菜单 */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}
.mobile-menu-overlay.show { opacity: 1; visibility: visible; }

.mobile-menu {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    background: #FFFFFF;
    z-index: 999;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
    padding: 20px 0;
}

.mobile-menu.open { right: 0; }

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px 20px;
    border-bottom: 1px solid #F2F3F5;
}

.mobile-logo-text {
    font-size: 16px;
    font-weight: 700;
    color: #1D2129;
}

.mobile-menu-close {
    font-size: 28px;
    color: #86909C;
    line-height: 1;
    padding: 4px;
}

.mobile-nav-list {
    flex: 1;
    padding: 12px 0;
}

.mobile-nav-list li a {
    display: block;
    padding: 14px 24px;
    font-size: 15px;
    color: #4E5969;
    border-left: 3px solid transparent;
}

.mobile-nav-list li a:hover,
.mobile-nav-list li a.active {
    color: #165DFF;
    background: #F2F3F5;
    border-left-color: #165DFF;
}

.mobile-menu-footer {
    padding: 20px;
    border-top: 1px solid #F2F3F5;
}

.mobile-phone {
    text-align: center;
    margin-bottom: 12px;
    color: #4E5969;
    font-size: 14px;
}

/* ========== Hero 大屏 Banner ========== */
.hero-section {
    position: relative;
    min-height: 600px;
    padding: 140px 0 100px;
    background: linear-gradient(180deg, #F5F9FF 0%, #FFFFFF 100%);
    overflow: hidden;
}

.hero-decor { position: absolute; pointer-events: none; }

.hero-circle-1 {
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(22, 93, 255, 0.08) 0%, transparent 70%);
    top: -100px;
    right: -100px;
}

.hero-circle-2 {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 180, 255, 0.06) 0%, transparent 70%);
    bottom: -150px;
    left: -100px;
}

.hero-lines {
    top: 10%;
    right: 5%;
    width: 200px;
    height: 200px;
    background-image: repeating-linear-gradient(
        45deg,
        rgba(22, 93, 255, 0.05) 0px,
        rgba(22, 93, 255, 0.05) 1px,
        transparent 1px,
        transparent 12px
    );
    border-radius: 50%;
}

.hero-dots {
    bottom: 20%;
    left: 10%;
    width: 150px;
    height: 150px;
    background-image: radial-gradient(rgba(0, 180, 255, 0.15) 1.5px, transparent 1.5px);
    background-size: 15px 15px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: #1D2129;
}

.hero-title-gradient {
    background: linear-gradient(135deg, #165DFF 0%, #00B4FF 50%, #722ED1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 17px;
    color: #4E5969;
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual { display: flex; justify-content: center; align-items: center; }

.hero-graphic {
    position: relative;
    width: 420px;
    height: 420px;
}

.graphic-main svg {
    width: 100%;
    height: 100%;
    animation: float 6s ease-in-out infinite;
}

.graphic-float {
    position: absolute;
    filter: drop-shadow(0 10px 30px rgba(22, 93, 255, 0.2));
}

.graphic-float svg { display: block; }

.graphic-float-1 { top: 10%; left: 5%; animation: float 4s ease-in-out infinite; }
.graphic-float-2 { bottom: 15%; right: 0; animation: float 5s ease-in-out infinite 1s; }
.graphic-float-3 { top: 55%; left: -20px; animation: float 3.5s ease-in-out infinite 0.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* ========== 特性标签条 ========== */
.features-strip {
    margin-top: -60px;
    position: relative;
    z-index: 2;
    padding: 0 20px;
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    background: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    padding: 40px;
}

.features-list {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 32px;
    align-items: center;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
    justify-content: center;
}

.feature-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #E8F3FF;
    border-radius: 12px;
    flex-shrink: 0;
}

.feature-icon svg { width: 24px; height: 24px; }

.feature-text h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 4px;
}

.feature-text p {
    font-size: 13px;
    color: #86909C;
}

.feature-divider {
    width: 1px;
    height: 40px;
    background: #E5E6EB;
}

/* ========== 数字统计区 ========== */
.stats-section {
    padding: 80px 20px;
    background: #FFFFFF;
}

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

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

.stat-item {
    text-align: center;
    padding: 32px 20px;
    border-radius: 8px;
    background: #F7F8FA;
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: #FFFFFF;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, #165DFF 0%, #00B4FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 12px;
}

.stat-label {
    font-size: 15px;
    color: #4E5969;
    font-weight: 500;
}

/* ========== 核心服务板块 ========== */
.services-section {
    padding: 100px 20px;
    background: #F7F8FA;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 40px 32px;
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #165DFF, #00B4FF);
    transform: scaleX(0);
    transition: transform 0.35s ease;
    transform-origin: left;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(22, 93, 255, 0.15);
    border-color: #E8F3FF;
}

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

.service-card-highlight {
    box-shadow: 0 12px 40px rgba(22, 93, 255, 0.1);
}

.service-icon-wrap { margin-bottom: 24px; }

.service-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
}

.service-icon-blue { background: linear-gradient(135deg, #165DFF 0%, #4080FF 100%); }
.service-icon-purple { background: linear-gradient(135deg, #722ED1 0%, #9F5BFF 100%); }
.service-icon-cyan { background: linear-gradient(135deg, #00B4FF 0%, #36CFC9 100%); }

.service-icon svg { width: 28px; height: 28px; }

.service-title {
    font-size: 22px;
    margin-bottom: 12px;
    font-weight: 700;
}

.service-desc {
    font-size: 14px;
    color: #86909C;
    line-height: 1.7;
    margin-bottom: 24px;
}

.service-features { margin-bottom: 28px; }

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: #4E5969;
}

.check-icon {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #E8FFFB;
    position: relative;
    flex-shrink: 0;
}

.check-icon::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 5px;
    width: 4px;
    height: 8px;
    border: solid #00B4FF;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #165DFF;
    font-weight: 500;
    font-size: 14px;
}

.service-link span { transition: transform 0.25s ease; }
.service-link:hover span { transform: translateX(4px); }

/* ========== 行业方案 Tab ========== */
.industries-section {
    padding: 100px 20px;
    background: #FFFFFF;
}

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

.industry-tabs { margin-top: 48px; }

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 32px;
    font-size: 15px;
    font-weight: 500;
    color: #4E5969;
    background: #F7F8FA;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.tab-btn:hover { color: #165DFF; background: #E8F3FF; }

.tab-btn.active {
    background: linear-gradient(135deg, #165DFF 0%, #00B4FF 100%);
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(22, 93, 255, 0.3);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.4s ease; }

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

.tab-panel-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    background: #F7F8FA;
    border-radius: 16px;
    padding: 56px;
}

.tab-content h3 {
    font-size: 28px;
    margin-bottom: 16px;
    font-weight: 700;
}

.tab-content p {
    font-size: 15px;
    color: #4E5969;
    line-height: 1.8;
    margin-bottom: 24px;
}

.tab-features { margin-bottom: 32px; }

.tab-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 15px;
    color: #1D2129;
    font-weight: 500;
}

.feat-check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #E8F3FF;
    position: relative;
    flex-shrink: 0;
}

.feat-check::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 7px;
    width: 5px;
    height: 10px;
    border: solid #165DFF;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.tab-visual { display: flex; justify-content: center; }

.tab-graphic {
    width: 100%;
    max-width: 350px;
}

.tab-graphic svg { width: 100%; height: auto; }

/* ========== 合作伙伴 Logo墙 ========== */
.partners-section {
    padding: 100px 20px;
    background: #F7F8FA;
}

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

.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1px;
    background: #E5E6EB;
    border-radius: 8px;
    overflow: hidden;
}

.partner-item {
    background: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px 16px;
    transition: all 0.3s ease;
}

.partner-item:hover {
    background: #F7F8FA;
    transform: scale(1.02);
}

.partner-logo svg { width: 100%; max-width: 100px; height: auto; }

/* ========== 新闻动态 ========== */
.news-section {
    padding: 100px 20px;
    background: #FFFFFF;
}

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

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.news-card {
    background: #FFFFFF;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.35s ease;
    border: 1px solid #E5E6EB;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
    border-color: #E8F3FF;
}

.news-thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: #F2F3F5;
}

.news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.news-thumb-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #E8F3FF 0%, #F2F3F5 100%);
}

.news-thumb-placeholder svg { width: 60px; height: 60px; opacity: 0.5; }

.news-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 13px;
}

.news-date { color: #86909C; }

.news-tag {
    display: inline-block;
    padding: 2px 10px;
    background: #E8F3FF;
    color: #165DFF;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.news-title {
    font-size: 18px;
    margin-bottom: 12px;
    font-weight: 600;
    line-height: 1.5;
}

.news-title a { color: #1D2129; }
.news-title a:hover { color: #165DFF; }

.news-excerpt {
    font-size: 14px;
    color: #86909C;
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #165DFF;
    font-weight: 500;
    font-size: 14px;
}

.news-link span { transition: transform 0.25s ease; }
.news-link:hover span { transform: translateX(4px); }

.no-news {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: #86909C;
}

/* ========== CTA 联系区 ========== */
.cta-section {
    position: relative;
    padding: 80px 20px;
    background: linear-gradient(135deg, #0A0F1C 0%, #165DFF 100%);
    overflow: hidden;
}

.cta-section::before,
.cta-section::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.cta-section::before {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 180, 255, 0.2) 0%, transparent 70%);
    top: -200px;
    right: -100px;
}

.cta-section::after {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(114, 46, 209, 0.2) 0%, transparent 70%);
    bottom: -150px;
    left: -100px;
}

.cta-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-content { text-align: center; color: #FFFFFF; }

.cta-title {
    font-size: 40px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-contact-info {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.cta-contact-item { text-align: left; }

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

.cta-contact-value {
    display: block;
    font-size: 18px;
    font-weight: 600;
    color: #FFFFFF;
}

.cta-contact-divider {
    width: 1px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
}

/* ========== 页脚 ========== */
.site-footer {
    background: #0A0F1C;
    color: #86909C;
    padding-top: 64px;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.2fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo-icon { width: 36px; height: 36px; flex-shrink: 0; }
.footer-logo-icon svg { width: 36px; height: 36px; display: block; }

.footer-logo-text {
    font-size: 17px;
    font-weight: 700;
    color: #FFFFFF;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    color: #86909C;
    max-width: 320px;
}

.footer-col-title {
    font-size: 16px;
    color: #FFFFFF;
    margin-bottom: 24px;
    font-weight: 600;
}

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

.footer-links li a {
    color: #86909C;
    font-size: 14px;
}

.footer-links li a:hover { color: #00B4FF; }

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 1.6;
}

.contact-icon {
    width: 20px;
    height: 20px;
    color: #165DFF;
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-icon svg { width: 100%; height: 100%; }

.footer-social { text-align: center; }

.qr-placeholder {
    width: 100px;
    height: 100px;
    margin: 0 auto 12px;
    color: #86909C;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-placeholder svg { width: 100%; height: 100%; }

.qr-text {
    font-size: 13px;
    margin-bottom: 4px;
}

.wechat-id {
    font-size: 12px;
    color: #00B4FF;
    font-weight: 500;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px 0;
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.copyright { font-size: 13px; color: #86909C; }

.icp { font-size: 13px; }
.icp a { color: #86909C; }
.icp a:hover { color: #00B4FF; }

/* ========== 列表页 ========== */
.list-page-banner {
    background: linear-gradient(135deg, #F5F9FF 0%, #FFFFFF 100%);
    padding: 140px 20px 80px;
    text-align: center;
}

.list-banner-inner { max-width: 800px; margin: 0 auto; }

.list-page-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 12px;
}

.list-page-desc {
    font-size: 16px;
    color: #86909C;
    margin-bottom: 24px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 14px;
    color: #86909C;
}

.breadcrumb a { color: #4E5969; }
.breadcrumb a:hover { color: #165DFF; }

.breadcrumb-sep { color: #C9CDD4; }
.breadcrumb-current { color: #165DFF; }

.list-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 20px;
}

.article-list { display: flex; flex-direction: column; gap: 28px; }

.article-card-list {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 28px;
    background: #FFFFFF;
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s ease;
    border: 1px solid #E5E6EB;
}

.article-card-list:hover {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
    border-color: #E8F3FF;
    transform: translateY(-2px);
}

.article-thumb-list {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    aspect-ratio: 16 / 10;
    background: #F2F3F5;
}

.article-thumb-list img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.article-card-list:hover .article-thumb-list img { transform: scale(1.05); }

.thumb-placeholder-list {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #E8F3FF 0%, #F2F3F5 100%);
}

.thumb-placeholder-list svg { width: 50px; height: 50px; opacity: 0.5; }

.article-content-list {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.article-meta-list {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 13px;
}

.meta-date { color: #86909C; }

.meta-category {
    padding: 2px 10px;
    background: #E8F3FF;
    color: #165DFF;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.article-title-list {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.article-title-list a { color: #1D2129; }
.article-title-list a:hover { color: #165DFF; }

.article-excerpt-list {
    font-size: 14px;
    color: #86909C;
    line-height: 1.7;
    margin-bottom: 16px;
}

.article-link-list {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #165DFF;
    font-weight: 500;
    font-size: 14px;
    align-self: flex-start;
}

.article-link-list span { transition: transform 0.25s ease; }
.article-link-list:hover span { transform: translateX(4px); }

.no-articles {
    text-align: center;
    padding: 80px 20px;
    color: #86909C;
    font-size: 16px;
}

/* 分页 */
.pagination-wrap { margin-top: 48px; text-align: center; }

.pagination {
    display: inline-flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 14px;
    border-radius: 6px;
    font-size: 14px;
    color: #4E5969;
    background: #F7F8FA;
    border: 1px solid transparent;
    transition: all 0.25s ease;
}

.pagination a:hover {
    border-color: #165DFF;
    color: #165DFF;
    background: #FFFFFF;
}

.pagination .current {
    background: linear-gradient(135deg, #165DFF 0%, #00B4FF 100%);
    color: #FFFFFF;
    font-weight: 500;
}

/* ========== 文章详情页 ========== */
.detail-banner {
    background: linear-gradient(135deg, #F5F9FF 0%, #FFFFFF 100%);
    padding: 140px 20px 80px;
    text-align: center;
}

.detail-banner-inner { max-width: 900px; margin: 0 auto; }

.detail-title {
    font-size: 36px;
    font-weight: 700;
    margin: 24px 0 20px;
    color: #1D2129;
    line-height: 1.4;
}

.detail-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 14px;
    color: #86909C;
}

.detail-meta > span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.detail-meta svg { width: 16px; height: 16px; }

.detail-container {
    max-width: 860px;
    margin: 0 auto;
    padding: 60px 20px;
}

.detail-content {
    font-size: 16px;
    line-height: 1.9;
    color: #4E5969;
}

.detail-content h1,
.detail-content h2,
.detail-content h3,
.detail-content h4 {
    margin-top: 32px;
    margin-bottom: 16px;
    color: #1D2129;
    font-weight: 600;
}

.detail-content h2 { font-size: 24px; }
.detail-content h3 { font-size: 20px; }
.detail-content h4 { font-size: 17px; }

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

.detail-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 16px 0;
}

.detail-content ul,
.detail-content ol { margin: 16px 0 16px 24px; }
.detail-content ul li,
.detail-content ol li { margin-bottom: 8px; }
.detail-content ul li { list-style: disc; }
.detail-content ol li { list-style: decimal; }

.detail-content blockquote {
    padding: 16px 24px;
    margin: 20px 0;
    background: #F7F8FA;
    border-left: 4px solid #165DFF;
    border-radius: 0 8px 8px 0;
    color: #4E5969;
}

.detail-content a { color: #165DFF; }
.detail-content a:hover { text-decoration: underline; }

.detail-content code {
    padding: 2px 6px;
    background: #F7F8FA;
    border-radius: 4px;
    font-size: 14px;
    font-family: "SF Mono", Monaco, Consolas, monospace;
    color: #722ED1;
}

.detail-content pre {
    padding: 20px;
    background: #1D2129;
    border-radius: 8px;
    overflow-x: auto;
    margin: 20px 0;
}

.detail-content pre code {
    background: none;
    color: #F7F8FA;
    padding: 0;
}

.detail-tags {
    margin-top: 48px;
    padding-top: 28px;
    border-top: 1px solid #E5E6EB;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.tags-label {
    font-weight: 500;
    color: #1D2129;
}

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

.tag-item {
    display: inline-block;
    padding: 4px 12px;
    background: #F2F3F5;
    color: #4E5969;
    border-radius: 4px;
    font-size: 13px;
    transition: all 0.25s ease;
}

.tag-item:hover {
    background: #E8F3FF;
    color: #165DFF;
}

.detail-neighbor {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 48px;
    padding-top: 28px;
    border-top: 1px solid #E5E6EB;
}

.detail-neighbor .nav-prev,
.detail-neighbor .nav-next,
.detail-neighbor a.nav-prev,
.detail-neighbor a.nav-next {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 20px;
    background: #F7F8FA;
    border-radius: 8px;
    transition: all 0.25s ease;
}

.detail-neighbor a.nav-prev:hover,
.detail-neighbor a.nav-next:hover {
    background: #E8F3FF;
    transform: translateY(-2px);
}

.nav-label {
    font-size: 13px;
    color: #86909C;
}

.nav-title {
    font-size: 15px;
    font-weight: 500;
    color: #1D2129;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

.nav-disabled { opacity: 0.5; }

/* ========== 联系页面 ========== */
.contact-page-banner {
    background: linear-gradient(135deg, #F5F9FF 0%, #FFFFFF 100%);
    padding: 140px 20px 80px;
    text-align: center;
}

.contact-banner-inner { max-width: 800px; margin: 0 auto; }

.contact-page-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 12px;
}

.contact-page-desc {
    font-size: 16px;
    color: #86909C;
    margin-bottom: 24px;
}

/* 联系信息卡片 */
.contact-info-section {
    margin-top: -60px;
    position: relative;
    z-index: 2;
    padding: 0 20px;
}

.contact-info-container { max-width: 1200px; margin: 0 auto; }

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

.contact-info-card {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.contact-info-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.info-icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: #FFFFFF;
}

.info-icon-blue { background: linear-gradient(135deg, #165DFF 0%, #4080FF 100%); }
.info-icon-cyan { background: linear-gradient(135deg, #00B4FF 0%, #36CFC9 100%); }
.info-icon-purple { background: linear-gradient(135deg, #722ED1 0%, #9F5BFF 100%); }
.info-icon-orange { background: linear-gradient(135deg, #FF7D00 0%, #FFB020 100%); }

.info-icon-wrap svg { width: 26px; height: 26px; }

.contact-info-card h4 {
    font-size: 16px;
    margin-bottom: 8px;
    font-weight: 600;
}

.info-value {
    font-size: 17px;
    font-weight: 600;
    color: #1D2129;
    margin-bottom: 6px;
}

.info-desc {
    font-size: 13px;
    color: #86909C;
}

/* 联系主体内容 */
.contact-main-section {
    padding: 80px 20px;
    background: #FFFFFF;
}

.contact-main-container { max-width: 1200px; margin: 0 auto; }

.contact-main-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-section-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
}

.contact-section-desc {
    font-size: 15px;
    color: #86909C;
    line-height: 1.8;
    margin-bottom: 36px;
}

.contact-detail-list { margin-bottom: 36px; }

.contact-detail-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid #F2F3F5;
}

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

.detail-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: #E8F3FF;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.detail-icon svg { width: 22px; height: 22px; }

.detail-label {
    font-size: 13px;
    color: #86909C;
    margin-bottom: 4px;
}

.detail-text {
    font-size: 15px;
    color: #1D2129;
    font-weight: 500;
}

.map-placeholder {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    background: #F7F8FA;
}

.map-placeholder svg { width: 100%; height: auto; display: block; }

/* 联系表单 */
.contact-form-card {
    background: #FFFFFF;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    border: 1px solid #F2F3F5;
}

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

.form-desc {
    font-size: 14px;
    color: #86909C;
    margin-bottom: 28px;
}

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

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #1D2129;
    margin-bottom: 8px;
}

.required { color: #F53F3F; }

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #E5E6EB;
    border-radius: 6px;
    font-size: 14px;
    color: #1D2129;
    background: #FFFFFF;
    transition: all 0.25s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #165DFF;
    box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
}

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

.form-tip {
    text-align: center;
    font-size: 12px;
    color: #86909C;
    margin-top: 12px;
}

.form-tip a { color: #165DFF; }

/* 独立页面内容 */
.page-content-section { padding: 0 20px 80px; }
.page-content-container { max-width: 1200px; margin: 0 auto; }
.page-content {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 40px;
    font-size: 15px;
    line-height: 1.8;
    color: #4E5969;
}

/* ========== 404 页面 ========== */
.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 140px 20px 80px;
    background: linear-gradient(180deg, #F5F9FF 0%, #FFFFFF 100%);
}

.error-container { max-width: 600px; width: 100%; }

.error-content { text-align: center; }

.error-code {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 120px;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 32px;
    background: linear-gradient(135deg, #165DFF 0%, #00B4FF 50%, #722ED1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.error-code span { display: inline-block; }

.error-0 {
    width: 100px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.error-0 svg { width: 100px; height: 100px; }

.error-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
}

.error-desc {
    font-size: 16px;
    color: #86909C;
    margin-bottom: 40px;
}

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

/* ========== 响应式 - 桌面端大尺寸 ========== */
@media (max-width: 1200px) {
    .section-title { font-size: 32px; }
    .hero-title { font-size: 44px; }
    .stats-grid { grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .footer-grid { grid-template-columns: 1.5fr 1fr 1.2fr 1fr; gap: 32px; }
}

/* ========== 响应式 - 平板端 ========== */
@media (max-width: 1024px) {
    .nav-center { display: none; }
    .nav-phone { display: none; }
    .hamburger-btn { display: flex; }

    .hero-container { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .hero-title { font-size: 40px; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }
    .hero-graphic { width: 360px; height: 360px; margin: 0 auto; }

    .features-list { grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .feature-divider { display: none; }
    .feature-item { flex-direction: column; text-align: center; gap: 8px; }
    .feature-icon { width: 44px; height: 44px; }
    .feature-icon svg { width: 20px; height: 20px; }
    .feature-text h4 { font-size: 14px; }
    .feature-text p { font-size: 12px; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .stat-number { font-size: 40px; }

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

    .tab-panel-inner { grid-template-columns: 1fr; gap: 40px; padding: 40px; }
    .tab-content { text-align: center; }
    .tab-features { max-width: 400px; margin-left: auto; margin-right: auto; text-align: left; }

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

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

    .cta-title { font-size: 32px; }
    .cta-buttons { flex-direction: column; gap: 24px; }

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

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

    .contact-main-grid { grid-template-columns: 1fr; gap: 48px; }

    .detail-neighbor { grid-template-columns: 1fr; }
    .nav-next { text-align: left; }

    .list-page-title,
    .contact-page-title { font-size: 32px; }
    .detail-title { font-size: 28px; }
}

/* ========== 响应式 - 手机端 ========== */
@media (max-width: 768px) {
    .section-header { margin-bottom: 40px; }
    .section-title { font-size: 26px; }
    .section-desc { font-size: 14px; }

    .hero-section { min-height: auto; padding: 120px 0 80px; }
    .hero-title { font-size: 32px; }
    .hero-subtitle { font-size: 15px; margin-bottom: 28px; }
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; }
    .hero-graphic { width: 280px; height: 280px; }

    .features-strip { margin-top: -40px; }
    .features-container { padding: 24px; }
    .feature-item { flex-direction: column; text-align: center; gap: 12px; }

    .stats-section { padding: 60px 20px; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .stat-item { padding: 24px 16px; }
    .stat-number { font-size: 32px; }
    .stat-label { font-size: 13px; }

    .services-section,
    .industries-section,
    .partners-section,
    .news-section { padding: 60px 20px; }

    .services-grid { grid-template-columns: 1fr; gap: 20px; }
    .service-card { padding: 28px 24px; }

    .tab-buttons { gap: 8px; }
    .tab-btn { padding: 10px 20px; font-size: 14px; }
    .tab-panel-inner { padding: 28px; }
    .tab-content h3 { font-size: 22px; }

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

    .news-grid { grid-template-columns: 1fr; gap: 20px; }

    .cta-section { padding: 60px 20px; }
    .cta-title { font-size: 26px; }
    .cta-desc { font-size: 15px; }
    .cta-contact-info { flex-direction: column; align-items: center; gap: 16px; text-align: center; }
    .cta-contact-divider { display: none; }
    .cta-contact-item { text-align: center; }

    .site-footer { padding-top: 48px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom-inner { flex-direction: column; text-align: center; }

    /* 列表页 */
    .list-page-banner { padding: 120px 20px 60px; }
    .list-page-title { font-size: 28px; }
    .list-container { padding: 40px 20px; }
    .article-card-list {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 20px;
    }
    .article-title-list { font-size: 18px; }

    /* 详情页 */
    .detail-banner { padding: 120px 20px 60px; }
    .detail-title { font-size: 24px; }
    .detail-container { padding: 40px 20px; }
    .detail-content { font-size: 15px; }

    /* 联系页 */
    .contact-page-banner { padding: 120px 20px 60px; }
    .contact-page-title { font-size: 28px; }
    .contact-info-grid { grid-template-columns: 1fr; }
    .contact-main-section { padding: 60px 20px; }
    .contact-section-title { font-size: 24px; }
    .contact-form-card { padding: 28px; }
    .form-row { grid-template-columns: 1fr; gap: 0; }

    /* 404 */
    .error-code { font-size: 80px; }
    .error-0 { width: 70px; height: 90px; }
    .error-0 svg { width: 70px; height: 70px; }
    .error-title { font-size: 24px; }
    .error-actions { flex-direction: column; }
    .error-actions .btn { width: 100%; }

    /* 分页 */
    .pagination a,
    .pagination span {
        min-width: 36px;
        height: 36px;
        padding: 0 10px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .logo-text { font-size: 16px; }
    .nav-right .btn-sm { padding: 6px 14px; font-size: 12px; }
}