/* ===== 全局重置与基础设置 ===== */
html, body { overflow-x: clip; }
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

body {
    color: #1a1a1a;
    line-height: 1.5;
    background-color: #fafbfc;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

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

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary { background-color: #4935ff; color: #fff; }
.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(73, 53, 255, 0.3);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid #e0e0e0;
    color: #333;
}
.btn-outline:hover { border-color: #4935ff; color: #4935ff; }

/* ===== 顶部导航栏 ===== */
header {
    background-color: #ffffff;
    padding: 0;
    border-bottom: 1px solid #f0f4f8;
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 20px rgba(0,0,0,0.03);
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 4px 30px rgba(0,0,0,0.06);
    border-color: rgba(240, 244, 248, 0.5);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 76px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 22px;
    font-weight: 700;
    color: #1a1a1a;
    letter-spacing: 0.5px;
}
.logo-img { height: 40px; width: auto; }
.logo-icon { color: #4935ff; margin-right: 10px; font-size: 24px; }

.nav-links {
    display: flex;
    gap: 36px;
    font-size: 15px;
    color: #555;
    align-items: center;
    font-weight: 500;
}
.nav-links > li {
    position: relative;
    height: 76px;
    display: flex;
    align-items: center;
}
.nav-links > li > a {
    padding: 4px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-links > li > a:hover { color: #4935ff; border-bottom-color: #4935ff; }
.nav-links > li > a.active { color: #4935ff; border-bottom-color: #4935ff; }
.nav-parent { cursor: default; font-size: 15px; color: #555; font-weight: 500; display: flex; align-items: center; gap: 4px; padding: 4px 0; border-bottom: 2px solid transparent; }

.nav-links > li.has-dropdown > a::after,
.nav-links > li.has-dropdown > .nav-parent::after {
    content: '▾';
    font-size: 12px;
    color: #999;
    margin-top: 1px;
    transition: transform 0.3s;
}
.nav-links > li.has-dropdown:hover > a::after,
.nav-links > li.has-dropdown:hover > .nav-parent::after { transform: rotate(180deg); }

.dropdown-menu {
    position: absolute;
    top: 76px;
    left: -20px;
    background: #fff;
    min-width: 160px;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}
.dropdown-menu li {
    padding: 10px 20px;
    transition: background 0.2s;
    font-size: 14px;
}
.dropdown-menu li:hover { background: #f8f8ff; color: #4935ff; }
.nav-links > li.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

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

.search-btn {
    background: #f5f7fa;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    color: #555;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.search-btn:hover { background: #eef0f5; color: #4935ff; }

/* ===== 搜索弹窗 ===== */
.search-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(255, 255, 255, 0.96);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
}
.search-overlay.active { opacity: 1; visibility: visible; }
.search-box-wrap { width: 80%; max-width: 600px; position: relative; }
.search-box-wrap input {
    width: 100%;
    padding: 20px 0;
    font-size: 26px;
    border: none;
    border-bottom: 2px solid #4935ff;
    outline: none;
    background: transparent;
    color: #333;
    font-weight: 300;
}
.search-box-wrap input::placeholder { color: #ccc; }
.close-search {
    position: absolute;
    right: 0; top: 15px;
    font-size: 32px;
    cursor: pointer;
    color: #999;
    transition: color 0.3s;
}
.close-search:hover { color: #333; }

/* ===== Hero 区域 ===== */
.hero { padding: 80px 0 100px; background: linear-gradient(to bottom, #f9f9ff 0%, #ffffff 100%); position: relative; }
.hero-content { display: flex; justify-content: space-between; align-items: flex-start; }
.hero-text { max-width: 550px; }
.hero-badge {
    display: inline-flex; align-items: center;
    background: #fff; padding: 6px 16px 6px 6px;
    border-radius: 20px; font-size: 12px; color: #4935ff;
    border: 1px solid #e5e0ff; margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(73, 53, 255, 0.05);
}
.hero-badge span {
    background: #4935ff; color: #fff; border-radius: 50%;
    width: 20px; height: 20px; display: inline-flex;
    align-items: center; justify-content: center;
    margin-right: 8px; font-size: 10px;
}
.hero-title { font-size: 48px; line-height: 1.1; margin-bottom: 20px; font-weight: 700; }
.hero-title span { color: #4935ff; }
.hero-desc { color: #666; margin-bottom: 30px; font-size: 15px; line-height: 1.6; }
.hero-actions { display: flex; gap: 16px; }
.hero-stats { display: flex; flex-direction: column; gap: 15px; align-items: flex-end; margin-top: 30px; }
.stat-card {
    background: #fff; padding: 15px 20px; border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    text-align: center; min-width: 140px;
}
.stat-card.small { min-width: 100px; padding: 10px 15px; }
.stat-num { font-size: 24px; font-weight: 700; color: #4935ff; }
.stat-label { font-size: 12px; color: #888; margin-top: 4px; }
.stat-card.small .stat-num { font-size: 16px; }
.stat-card.small .stat-label { font-size: 10px; }
.stat-row { display: flex; gap: 15px; }

/* ===== 案例滚动条 ===== */
.logo-strip {
    background: #fafbfc; padding: 30px 0;
    border-bottom: 1px solid #eee;
    overflow: hidden;
    position: relative;
}
.logo-strip-inner {
    display: flex;
    gap: 20px;
    white-space: nowrap;
    animation: marquee 40s linear infinite;
    width: max-content;
}
.logo-strip:hover .logo-strip-inner {
    animation-play-state: paused;
}
@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.case-title-item {
    background: #fff; padding: 10px 20px;
    border-radius: 8px; font-size: 13px;
    color: #555; font-weight: 500;
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
    transition: all 0.3s;
    flex-shrink: 0;
}
.case-title-item:hover { color: #4935ff; box-shadow: 0 4px 16px rgba(73,53,255,0.1); }

/* ===== 业务矩阵 ===== */
.business-matrix { padding: 80px 0; background: #fff; }
.section-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 40px; }
.section-title { font-size: 28px; font-weight: 700; }
.section-desc { color: #666; margin-top: 10px; font-size: 14px; max-width: 600px; }
.link-arrow { color: #666; font-size: 14px; display: flex; align-items: center; }
.link-arrow:hover { color: #4935ff; }
.matrix-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.matrix-item {
    background: #f8f8fa; border-radius: 16px; padding: 40px;
    position: relative; transition: transform 0.3s, box-shadow 0.3s;
}
.matrix-item:hover { transform: translateY(-4px); box-shadow: 0 12px 36px rgba(0,0,0,0.08); }
.matrix-item.highlight { background: #f3f1ff; }
.matrix-icon { font-size: 28px; margin-bottom: 20px; display: block; }
.matrix-icon svg { width: 32px; height: 32px; }
.matrix-item h3 { font-size: 22px; margin-bottom: 10px; font-weight: 600; }
.matrix-item p { color: #666; font-size: 14px; margin-bottom: 20px; }
.matrix-tags { display: flex; gap: 10px; font-size: 12px; color: #999; flex-wrap: wrap; }
.matrix-tags span { background: #fff; padding: 4px 12px; border-radius: 12px; }

/* ===== 服务流程 ===== */
.process { padding: 80px 0; background: #f9f9ff; text-align: center; }
.process .section-desc { margin: 0 auto 50px; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.process-item {
    background: #fff; padding: 30px 20px; border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.02);
    text-align: left; position: relative;
}
.process-num {
    font-size: 40px; font-weight: 700; color: #e6e4ff;
    position: absolute; top: 20px; right: 20px;
}
.process-item h4 { font-size: 16px; margin-bottom: 10px; margin-top: 15px; }
.process-item p { font-size: 13px; color: #666; line-height: 1.6; }

/* ===== 最新资讯 ===== */
.news-section { padding: 80px 0; background: #fff; }
.news-section .section-title { text-align: center; }
.news-section .section-desc { text-align: center; margin: 0 auto 50px; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.news-card {
    border: 1px solid #eee; border-radius: 12px; overflow: hidden;
    transition: box-shadow 0.3s, transform 0.3s;
}
.news-card:hover { box-shadow: 0 12px 36px rgba(0,0,0,0.08); transform: translateY(-4px); }
.news-card img { width: 100%; height: 200px; object-fit: cover; display: block; }
.news-card-body { padding: 24px; }
.news-card-body h3 { font-size: 16px; margin-bottom: 10px; line-height: 1.4; }
.news-card-body h3 a { color: #1a1a1a; }
.news-card-body h3 a:hover { color: #4935ff; }
.news-card-body p {
    font-size: 13px; color: #666; line-height: 1.6; margin-bottom: 12px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-meta { font-size: 12px; color: #999; display: flex; gap: 15px; }

/* ===== 成功案例 ===== */
.case-section { padding: 80px 0; background: #f9f9ff; }
.case-section .section-title { text-align: center; }
.case-section .section-desc { text-align: center; margin: 0 auto 50px; }
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.case-item {
    background: #fff; border-radius: 12px; overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}
.case-item:hover { transform: translateY(-4px); box-shadow: 0 12px 36px rgba(0,0,0,0.08); }
.case-item img { width: 100%; height: 180px; object-fit: cover; display: block; }
.case-item-body { padding: 16px; }
.case-item-body h4 { font-size: 14px; margin-bottom: 6px; }
.case-item-body h4 a { color: #1a1a1a; }
.case-item-body h4 a:hover { color: #4935ff; }
.case-item-body p { font-size: 12px; color: #999; }

/* ===== 数据展示 ===== */
.stats-banner { background: #333437; color: #fff; padding: 60px 0; }
.stats-flex { display: flex; justify-content: space-around; align-items: center; }
.stat-block { text-align: center; }
.stat-block .num { font-size: 40px; font-weight: 700; margin-bottom: 5px; }
.stat-block .desc { font-size: 14px; color: #b0b0b0; }

/* ===== FAQ ===== */
.faq { padding: 80px 0; background: #fff; }
.faq .section-title { text-align: center; margin-bottom: 40px; }
.faq-item {
    border: 1px solid #eee; border-radius: 8px; margin-bottom: 15px;
    padding: 20px 25px; max-width: 800px; margin-left: auto; margin-right: auto;
    background: #fff; cursor: pointer;
}
.faq-question { display: flex; justify-content: space-between; align-items: center; font-weight: 600; font-size: 15px; }
.faq-icon { color: #999; font-size: 20px; font-weight: 300; }
.faq-answer { margin-top: 15px; font-size: 14px; color: #666; display: none; border-top: 1px solid #f0f0f0; padding-top: 15px; }
.faq-item.active .faq-answer { display: block; }
.faq-item.active .faq-icon { transform: rotate(45deg); display: inline-block; }

/* ===== CTA ===== */
.cta-banner {
    background: #3b2bf5; border-radius: 24px; margin: 0 20px 40px;
    padding: 60px 40px; text-align: center; color: #fff;
    position: relative; overflow: hidden;
}
.cta-banner h2 { font-size: 32px; margin-bottom: 10px; }
.cta-banner p { opacity: 0.8; font-size: 14px; margin-bottom: 30px; }
.cta-actions { display: flex; justify-content: center; gap: 20px; }
.cta-actions .btn { padding: 14px 40px; font-size: 15px; }
.cta-actions .btn-primary { background: #fff; color: #3b2bf5; }
.cta-actions .btn-outline { border: 1px solid rgba(255,255,255,0.4); color: #fff; border-radius: 30px; }
.cta-actions .btn-outline:hover { background: rgba(255,255,255,0.1); }

/* ===== 页脚 ===== */
footer { background: #f1f1f7; padding: 60px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 3fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { margin-bottom: 15px; }
.footer-brand .logo-img { height: 36px; width: auto; }
.footer-brand p { font-size: 13px; color: #666; line-height: 1.6; }
.footer-col h4 { font-size: 14px; margin-bottom: 20px; color: #333; font-weight: 600; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 13px; color: #666; transition: color 0.2s; }
.footer-col ul li a:hover { color: #4935ff; }

/* 核心服务分组布局 */
.footer-services-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 30px; }
.footer-service-group .footer-service-label { display: block; font-size: 13px; font-weight: 600; color: #333; margin-bottom: 12px; }
.footer-service-group ul { list-style: none; padding: 0; margin: 0; }
.footer-service-group ul li { margin-bottom: 10px; }
.footer-service-group ul li a { font-size: 13px; color: #666; transition: color 0.2s; }
.footer-service-group ul li a:hover { color: #4935ff; }

/* 联系二维码 */
.footer-qr-wrap { display: flex; gap: 15px; margin-top: 10px; }
.footer-qr-item { display: flex; flex-direction: column; align-items: center; }
.footer-qr-item img { width: 80px; height: 80px; border-radius: 8px; object-fit: cover; }
.footer-qr-item span { font-size: 12px; color: #666; margin-top: 6px; }

/* 备案信息 */
.footer-licenses { display: flex; align-items: center; gap: 15px; flex-wrap: wrap; }
.footer-licenses a { color: #888; font-size: 12px; }
.footer-licenses a:hover { color: #4935ff; }
.footer-bottom {
    border-top: 1px solid #e0e0e0; padding-top: 20px;
    display: flex; justify-content: space-between; align-items: center;
    font-size: 12px; color: #888; flex-wrap: wrap; gap: 10px;
}

/* ===== 固定侧边栏 ===== */
.side-toolbar {
    position: fixed; right: 20px; bottom: 100px;
    z-index: 998; display: flex; flex-direction: column; gap: 10px;
}
.side-tool-item {
    width: 50px; height: 50px; border-radius: 8px;
    background: #fff; box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all 0.3s; position: relative;
    border: 1px solid #f0f0f0;
}
.side-tool-item:hover { background: #4935ff; border-color: #4935ff; }
.side-tool-item:hover svg { stroke: #fff; }
.side-tool-item svg { width: 22px; height: 22px; stroke: #555; transition: stroke 0.3s; }
.side-tool-item .tool-tooltip {
    position: absolute; right: 60px; top: 50%; transform: translateY(-50%);
    background: #fff; padding: 8px 14px; border-radius: 6px;
    font-size: 13px; color: #333; white-space: nowrap;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1); border: 1px solid #f0f0f0;
    opacity: 0; visibility: hidden; transition: all 0.3s; pointer-events: none;
}
.side-tool-item:hover .tool-tooltip { opacity: 1; visibility: visible; right: 62px; }
.side-tool-popup {
    position: absolute; right: 60px; top: 50%; transform: translateY(-50%);
    background: #fff; padding: 15px; border-radius: 10px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15); border: 1px solid #f0f0f0;
    opacity: 0; visibility: hidden; transition: all 0.3s; pointer-events: none;
    text-align: center; min-width: 140px;
}
.side-tool-item:hover .side-tool-popup { opacity: 1; visibility: visible; right: 62px; }
.side-tool-popup h5 { font-size: 13px; color: #333; margin-bottom: 8px; }
.side-tool-popup p { font-size: 16px; font-weight: 700; color: #4935ff; margin-bottom: 8px; }
.side-tool-popup img { width: 100px; height: 100px; border-radius: 6px; object-fit: cover; }
.side-tool-popup .qr-label { font-size: 12px; color: #888; margin-top: 4px; }
.side-backtop { opacity: 0; visibility: hidden; transition: all 0.3s; }
.side-backtop.show { opacity: 1; visibility: visible; }
/* 移动端点击展开弹窗 */
.side-tool-item.tapped { background: #4935ff; border-color: #4935ff; }
.side-tool-item.tapped svg { stroke: #fff; }
.side-tool-item.tapped .side-tool-popup,
.side-tool-item.tapped .tool-tooltip {
    opacity: 1; visibility: visible;
}

/* ===== 咨询弹窗 ===== */
.consult-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5); z-index: 1001;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: all 0.3s;
    overflow-y: auto; -webkit-overflow-scrolling: touch;
    padding: 20px 0;
}
.consult-overlay.active { opacity: 1; visibility: visible; }
.consult-modal {
    background: #fff; border-radius: 16px; padding: 40px;
    max-width: 420px; width: 90%; text-align: center; position: relative;
    transform: scale(0.9); transition: transform 0.3s;
}
.consult-overlay.active .consult-modal { transform: scale(1); }
.consult-close {
    position: absolute; top: 15px; right: 15px;
    width: 32px; height: 32px; border-radius: 50%;
    background: #f5f5f5; border: none; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.3s;
}
.consult-close:hover { background: #e0e0e0; }
.consult-close svg { width: 18px; height: 18px; stroke: #666; }
.consult-modal h3 { font-size: 22px; margin-bottom: 8px; color: #1a1a1a; }
.consult-modal .consult-sub { font-size: 14px; color: #888; margin-bottom: 25px; }
.consult-info-item {
    display: inline-flex; align-items: center; gap: 15px;
    padding: 16px 24px; background: #f8f8fa; border-radius: 10px; margin-bottom: 12px;
}
.consult-info-item svg { width: 28px; height: 28px; stroke: #4935ff; flex-shrink: 0; }
.consult-info-item .info-text { text-align: left; }
.consult-info-item .info-label { font-size: 12px; color: #999; }
.consult-info-item .info-value { font-size: 18px; font-weight: 700; color: #4935ff; }
.consult-qr { margin-top: 16px; }
.consult-qr img { width: 120px; height: 120px; border-radius: 8px; object-fit: cover; }
.consult-qr .qr-label { font-size: 13px; color: #666; margin-top: 8px; }

/* ===== 移动端汉堡菜单按钮 ===== */
.nav-toggle {
    display: none;
    background: none; border: none; cursor: pointer;
    width: 40px; height: 40px;
    flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.nav-toggle span {
    display: block; width: 24px; height: 2px;
    background: #333; border-radius: 2px;
    transition: all 0.3s;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== 移动端导航遮罩 ===== */
.nav-overlay {
    display: none; position: fixed; top: 0; left: 0;
    width: 100%; height: 100%; background: rgba(0,0,0,0.4);
    z-index: 997; opacity: 0; transition: opacity 0.3s;
}
.nav-overlay.active { display: block; opacity: 1; }

/* ===== 响应式适配 ===== */

/* 平板 (<=992px) */
@media (max-width: 992px) {
    .container { padding: 0 16px; }
    .hero { padding: 50px 0 60px; }
    .hero-content { flex-direction: column; }
    .hero-text { max-width: 100%; }
    .hero-title { font-size: 36px; }
    .hero-stats { align-items: flex-start; width: 100%; flex-direction: row; gap: 15px; }
    .matrix-grid { grid-template-columns: 1fr !important; }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .case-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
    .footer-services-col { grid-column: 1 / -1; }
    .footer-services-wrap { grid-template-columns: 1fr 1fr 1fr 1fr; gap: 16px 20px; }
}

/* 手机 (<=768px) */
@media (max-width: 768px) {
    .container { padding: 0 14px; }

    /* 导航栏 */
    .nav-inner { height: 60px; }
    .logo { font-size: 18px; }
    .logo-icon { font-size: 20px; }
    .nav-toggle { display: flex; }
    .nav-links {
        position: fixed; top: 60px; right: 0;
        width: 75%; max-width: 320px; height: calc(100vh - 60px);
        background: #fff; flex-direction: column;
        gap: 0; padding: 20px 0; overflow-y: auto;
        transform: translateX(100%);
        transition: transform 0.3s ease; z-index: 998;
        box-shadow: -4px 0 20px rgba(0,0,0,0.1);
    }
    .nav-links.active { transform: translateX(0); }
    .nav-links > li {
        width: 100%; height: auto; padding: 0;
        border-bottom: 1px solid #f0f0f0;
    }
    .nav-links > li > a, .nav-links > li > .nav-parent {
        padding: 14px 24px; width: 100%;
        border-bottom: none; font-size: 15px;
    }
    .nav-links > li.has-dropdown > a,
    .nav-links > li.has-dropdown > .nav-parent {
        justify-content: space-between;
    }
    .nav-parent { cursor: pointer; }
    .dropdown-menu {
        position: static; top: auto; left: auto;
        opacity: 1; visibility: visible; transform: none;
        box-shadow: none; border: none; padding: 0;
        background: #f8f8fa; display: none;
    }
    .nav-links > li.has-dropdown.open .dropdown-menu { display: block; }
    .nav-links > li.has-dropdown.open > .nav-parent::after,
    .nav-links > li.has-dropdown.open > a::after { transform: rotate(180deg); }
    .dropdown-menu li { padding: 10px 40px; font-size: 13px; }
    .dropdown-menu li a { color: #555; }
    .nav-right { gap: 8px; }
    .nav-right .btn { display: none; }
    .search-btn { width: 36px; height: 36px; }
    .logo-img { height: 32px; }

    /* Hero */
    .hero { padding: 40px 0 50px; }
    .hero-title { font-size: 28px; }
    .hero-desc { font-size: 14px; }
    .hero-badge { font-size: 11px; }
    .hero-actions { flex-direction: column; gap: 10px; }
    .hero-actions .btn { text-align: center; }
    .hero-stats { flex-direction: row; gap: 10px; }
    .stat-card { min-width: auto; padding: 12px 16px; }
    .stat-card.small { min-width: auto; }
    .stat-num { font-size: 18px; }
    .stat-card.small .stat-num { font-size: 14px; }

    /* 案例滚动 */
    .logo-strip { padding: 20px 0; }
    .case-title-item { font-size: 12px; padding: 8px 16px; }

    /* 业务矩阵 */
    .business-matrix { padding: 50px 0; }
    .section-title { font-size: 22px; }
    .section-desc { font-size: 13px; }
    .matrix-item { padding: 25px; }
    .matrix-item h3 { font-size: 18px; }

    /* 服务流程 */
    .process { padding: 50px 0; }
    .process-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .process-item { padding: 20px 16px; }
    .process-num { font-size: 30px; }
    .process-item h4 { font-size: 14px; }
    .process-item p { font-size: 12px; }

    /* 新闻 */
    .news-section { padding: 50px 0; }
    .news-grid { grid-template-columns: 1fr; }
    .news-card img { height: 180px; }

    /* 案例 */
    .case-section { padding: 50px 0; }
    .case-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .case-item img { height: 130px; }

    /* 数据展示 */
    .stats-banner { padding: 40px 0; }
    .stats-flex { flex-wrap: wrap; gap: 20px; justify-content: center; }
    .stat-block { width: 45%; }
    .stat-block .num { font-size: 28px; }
    .stat-block .desc { font-size: 12px; }

    /* FAQ */
    .faq { padding: 50px 0; }
    .faq-item { padding: 16px 18px; }
    .faq-question { font-size: 14px; }

    /* CTA */
    .cta-banner { margin: 0 14px 30px; padding: 40px 20px; border-radius: 16px; }
    .cta-banner h2 { font-size: 22px; }
    .cta-banner p { font-size: 13px; }
    .cta-actions { flex-direction: column; gap: 12px; }
    .cta-actions .btn { padding: 12px 30px; font-size: 14px; }

    /* 页脚 */
    footer { padding: 40px 0 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px 20px; }
    .footer-brand { grid-column: 1 / -1; text-align: center; padding-bottom: 25px; border-bottom: 1px solid #e0e0e0; }
    .footer-brand .logo { justify-content: center; }
    .footer-services-col { grid-column: 1 / -1; }
    .footer-services-wrap { grid-template-columns: 1fr 1fr; gap: 16px 20px; }
    .footer-brand p { font-size: 12px; line-height: 1.5; }
    .footer-brand .logo-img { height: 30px; }
    .footer-col h4 { font-size: 13px; margin-bottom: 14px; }
    .footer-service-label { font-size: 12px; }
    .footer-service-group ul li, .footer-col ul li { margin-bottom: 8px; }
    .footer-service-group ul li a, .footer-col ul li a { font-size: 12px; }
    .footer-qr-item img { width: 68px; height: 68px; }
    .footer-qr-item span { font-size: 11px; }
    .footer-bottom { flex-direction: column; text-align: center; gap: 8px; font-size: 11px; }
    .footer-licenses { justify-content: center; }

    /* 侧边栏 */
    .side-toolbar { right: 12px; bottom: 80px; gap: 8px; }
    .side-tool-item { width: 42px; height: 42px; }
    .side-tool-item svg { width: 18px; height: 18px; }
    .side-tool-popup { right: 50px; min-width: 120px; padding: 12px; }
    .side-tool-popup img { width: 80px; height: 80px; }
    .side-tool-item.tapped .side-tool-popup { right: 52px; }
    .tool-tooltip { right: 50px; }
    .side-tool-item.tapped .tool-tooltip { right: 52px; }

    /* 咨询弹窗 */
    .consult-overlay { padding: 30px 14px; align-items: flex-start; }
    .consult-modal { padding: 28px 20px 24px; width: 100%; max-width: 360px; border-radius: 14px; }
    .consult-modal h3 { font-size: 19px; margin-bottom: 6px; }
    .consult-modal .consult-sub { font-size: 13px; margin-bottom: 20px; }
    .consult-close { top: 10px; right: 10px; width: 30px; height: 30px; }
    .consult-close svg { width: 16px; height: 16px; }
    .consult-info-item { padding: 12px 14px; gap: 12px; border-radius: 8px; }
    .consult-info-item svg { width: 24px; height: 24px; }
    .consult-info-item .info-label { font-size: 11px; }
    .consult-info-item .info-value { font-size: 16px; }
    .consult-qr { margin-top: 14px; }
    .consult-qr img { width: 110px; height: 110px; }
    .consult-qr .qr-label { font-size: 12px; margin-top: 6px; }

    /* 搜索弹窗 */
    .search-box-wrap { width: 90%; }
    .search-box-wrap input { font-size: 18px; padding: 15px 0; }
}

/* 小手机 (<=480px) */
@media (max-width: 480px) {
    .hero-title { font-size: 24px; }
    .process-grid { grid-template-columns: 1fr; }
    .case-grid { grid-template-columns: 1fr; }
    .stat-block { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 25px; }
    .footer-services-wrap { grid-template-columns: 1fr 1fr; gap: 12px 16px; }
    .footer-qr-wrap { justify-content: center; }
    .footer-bottom { font-size: 10px; }
}