/* 全局重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}
html {
  scroll-behavior: smooth;
}
body {
  color: #333;
  line-height: 1.6;
  background: #fff;
}
.container {
  width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}
a {
  text-decoration: none;
  color: inherit;
}
ul {
  list-style: none;
}
img {
  max-width: 100%;
  vertical-align: middle;
  width: 28px;
  height: 28px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #fff;
    box-shadow: 0 2px 15px rgba(0, 0, 0, .05);
    z-index: 9999;
}


.navbtn {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 15px;
    border: none;
    cursor: pointer;
}

.navbtn-primary {
    background: linear-gradient(135deg, #165DFF, #0E42D2);
    color: #fff;
    box-shadow: 0 4px 12px rgba(22, 93, 255, 0.3);
}

.navbtn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(22, 93, 255, 0.4);
}

.navbtn-secondary {
    background: #fff;
    color: #165DFF;
    border: 1px solid #165DFF;
}

.navbtn-secondary:hover {
    background: #f0f7ff;
    transform: translateY(-2px);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 20px;
    font-weight: 700;
    color: #165DFF;
}

.logo img {
    margin-right: 10px;
    width: 130px;
    height: 38px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: #333;
    position: relative;
    transition: 0.3s;
    padding: 10px 0;
}

.nav-links a:hover {
    color: #165DFF;
}

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

.nav-dropdown {
    position: relative;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 1100px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 9999;
    overflow: hidden;
    pointer-events: none;
}

.dropdown-inner {
    display: flex;
}

.product-sidebar {
    width: 240px;
    background: #f8fafc;
    border-right: 1px solid #eee;
    padding: 10px 0;
}

.sidebar-title {
    padding: 12px 20px;
    font-size: 16px;
    font-weight: 600;
    border-bottom: 1px solid #eee;
}

.sidebar-menu,
.mobile-sidebar-menu {
    list-style: none;
}

.sidebar-menu li,
.mobile-sidebar-menu li {
    border-bottom: 1px solid #eee;
}

.sidebar-menu li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    font-size: 14px;
    color: #333;
}

.sidebar-menu li a:hover {
    background: #e6f3ff;
    color: #165DFF;
}

.sidebar-menu li a.active {
    background: #165DFF;
    color: #fff;
}

.product-content {
    flex: 1;
    padding: 24px;
}

.search-box {
    width: 100%;
    max-width: 500px;
    padding: 10px 15px;
    border: 1px solid #eee;
    border-radius: 6px;
    margin-bottom: 15px;
}

.tag-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.tag {
    padding: 6px 12px;
    background: #f0f7ff;
    color: #165DFF;
    border-radius: 4px;
    font-size: 13px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.product-card {
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 16px;
    cursor: pointer;
}

.product-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border-color: #165DFF;
}

.product-card h4 {
    font-size: 15px;
    margin-bottom: 8px;
}

.product-card p {
    font-size: 13px;
    color: #666;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.mobile-menu {
    display: none;
    font-size: 24px;
    color: #165DFF;
    cursor: pointer;
    padding: 8px;
}

.mobile-nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    display: none;
    z-index: 9999;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    padding: 10px 0;
}

.mobile-nav-list a {
    padding: 15px 25px;
    font-size: 15px;
    color: #333;
    border-bottom: 1px solid #f2f3f5;
}

.mobile-nav-list a:hover {
    color: #165DFF;
}

.mobile-btns {
    padding: 15px 25px;
    display: flex;
    gap: 10px;
}

.mobile-btns .btn {
    padding: 14px 25px !important;
}

.mobile-product-parent {
    border-bottom: 1px solid #f2f3f5;
}

.mobile-product-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    font-size: 15px;
    color: #333;
    cursor: pointer;
}

.mobile-product-arrow {
    transition: transform 0.3s ease;
}

.mobile-product-arrow.active {
    transform: rotate(180deg);
}

.mobile-product-menu {
    background: #f8fafc;
    display: none;
    border-top: 1px solid #eee;
}

.mobile-product-menu.active {
    display: flex !important;
    width: 100%;
}

.mobile-sidebar {
    width: 180px;
    background: #fff;
    border-right: 1px solid #eee;
    flex-shrink: 0;
}

.mobile-sidebar-menu li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    font-size: 14px;
    color: #333;
}

.mobile-sidebar-menu li a:hover {
    background: #e6f3ff;
    color: #165DFF;
}

.mobile-sidebar-menu li a.active {
    background: #165DFF;
    color: #fff;
}

.mobile-product-content {
    flex: 1;
    padding: 15px;
    background: #fff;
    overflow-y: auto;
    max-height: 400px;
}

.mobile-product-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.mobile-product-card {
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 12px;
}

.mobile-product-card h4 {
    font-size: 14px;
    margin-bottom: 6px;
}

.mobile-product-card p {
    font-size: 12px;
    color: #666;
}

/* 横幅 */
.hero {
  background: linear-gradient(135deg, #165DFF, #0E3BA1);
  color: #fff;
  padding: 130px 0;
  text-align: center;
  margin-top: 70px;
}
.hero h1 {
  font-size: 42px;
  margin-bottom: 15px;
  line-height: 1.2;
}
.hero p {
  font-size: 16px;
  opacity: 0.95;
  margin-bottom: 35px;
}
.hero-btns {
  display: flex;
  gap: 15px;
  justify-content: center;
}
.btn-primary {
  background: #fff;
  color: #165DFF;
  padding: 14px 32px;
  border-radius: 6px;
  font-weight: bold;
  font-size: 15px;
  transition: 0.3s;
}
.btn-primary:hover {
  background: #f5f5f5;
}
.btn-outline {
  border: 1px solid #fff;
  color: #fff;
  padding: 14px 32px;
  border-radius: 6px;
  font-size: 15px;
  transition: 0.3s;
}
.btn-outline:hover {
  background: #fff;
  color: #165DFF;
}

/* 模块标题 */
.section-title {
  text-align: center;
  margin-bottom: 45px;
}
.section-title h2 {
  font-size: 30px;
  color: #111;
  margin-bottom: 10px;
}
.section-title p {
  color: #666;
  font-size: 15px;
}

/* 核心亮点 */
.highlights {
  padding: 70px 0;
}
.high-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}
.high-item {
  background: #fff;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid #f0f0f0;
  transition: 0.3s;
}
.high-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}
.high-item .icon {
  width: 48px;
  height: 48px;
  margin-bottom: 15px;
}
.high-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: #222;
}
.high-item p {
  font-size: 14px;
  color: #666;
}

/* 技术/场景 */
.tech {padding:80px 0;background:#fff}
.tech-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.tech-item {display:flex;align-items:flex-start;gap:16px;padding:25px;background:#f8fafc;border-radius:12px}
.tech-item h4 {font-size:18px;margin-bottom:6px}
.tech-item p {color:#64748b;font-size:14px}

/* 价格套餐 */
/* 价格套餐 */
.pricing {
  padding: 70px 0;
  background: #f8fafc;
}
/* 让价格区的 container 不受 1200px 限制，单独变宽 */
.pricing .container {
  width: auto;
  max-width: 1500px; /* 你要多宽自己改：1400/1500/1600 */
  margin: 0 auto;
  padding: 0 15px;
}
.price-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  /* 不用再设 width/max-width，靠父级 container 控制宽度 */
}
.price-card {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 12px;
  padding: 35px 25px;
  text-align: center;
  position: relative;
  transition: 0.3s;
}
.price-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.06);
}
.price-card.hot {
  border-color: #165DFF;
}
.hot-label {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: #165DFF;
  color: #fff;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 12px;
}
.price-card h3 {
  font-size: 18px;
  margin-bottom: 15px;
}
.price-num {
  font-size: 30px;
  color: #165DFF;
  font-weight: bold;
  margin-bottom: 20px;
}
.price-num span {
  font-size: 14px;
  color: #666;
  font-weight: normal;
}
.feat-list {
  margin-bottom: 25px;
}
.feat-list li {
  padding: 8px 0;
  font-size: 14px;
  color: #555;
}
.buy {
  display: inline-block;
  padding: 11px 24px;
  background: #165DFF;
  color: #fff;
  border-radius: 6px;
  font-size: 14px;
  transition: 0.3s;
}
.buy:hover {
  background: #0E3BA1;
}

/* 业务场景 */
.scene {
  padding: 70px 0;
}
.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.scene-item {
  padding: 25px 15px;
  background: #f9f9f9;
  border-radius: 8px;
  font-size: 14px;
}
.scene-item .icon {
  width: 36px;
  height: 36px;
  margin-bottom: 8px;
}

.steps {padding:80px 0;background:linear-gradient(135deg,#f8fafc,#ffffff);position:relative}
.step-grid {display:flex;justify-content:center;align-items:flex-start;gap:30px;flex-wrap:wrap;position:relative}
.step-grid::before {content:'';position:absolute;top:35px;left:15%;right:15%;height:2px;background:linear-gradient(90deg,#165DFF,#0ea5e9);z-index:1}
.step-item {text-align:center;max-width:180px;position:relative;z-index:2}
.step-item .num {width:70px;height:70px;background:linear-gradient(135deg,#165DFF,#0ea5e9);color:#fff;border-radius:50%;display:grid;place-items:center;font-size:26px;font-weight:700;margin:0 auto 20px;box-shadow:0 6px 20px rgba(22,93,255,0.25)}
.step-item h4 {font-size:18px;margin-bottom:8px;color:#1e293b}
.step-item p {color:#64748b}

.blog {padding:80px 0;background:#f8fafc}
.blog-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:30px}
.blog-card {background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 5px 15px rgba(0,0,0,0.05);transition:0.3s}
.blog-card:hover {transform:translateY(-5px)}
.blog-content {padding:25px}
.blog-card h3 {font-size:18px;color:#1e293b;margin-bottom:10px}
.blog-card p {color:#64748b;font-size:14px;margin-bottom:12px}
.blog-card .more {color:#165DFF;font-size:14px;font-weight:500}

/* 常见问题 */
.faq {
  padding: 70px 0;
  background: #f8fafc;
}
.faq-item {
  max-width: 850px;
  margin: 0 auto 15px;
  background: #fff;
  padding: 18px 22px;
  border-radius: 8px;
}
.faq-item h4 {
  font-size: 16px;
  margin-bottom: 6px;
  color: #222;
}
.faq-item p {
  font-size: 14px;
  color: #666;
}

.contact-itema {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: #f8fafc;
  border-radius: 12px;
  border: 1px solid #165dff;
}


/* 全局基础预留间距 */
body {
    padding-bottom: 70px;
    box-sizing: border-box;
}

.fixed-bottom {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    display: flex;
    align-items: stretch;
    z-index: 9999;
    padding-bottom: env(safe-area-inset-bottom);
    box-sizing: border-box;
    /* 顶部立体阴影 */
    box-shadow: 0 -2px 15px rgba(0,0,0,0.08);
}

/* 左右按钮通用样式 */
.contact-left,
.contact-right {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    color: #fff;
    padding: 15px 0;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-decoration: none !important;
    cursor: pointer;
    transition: all 0.25s ease;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    gap: 6px;
}

/* 精致中间分割线 */
.split-line {
    width: 1px;
    background: rgba(255,255,255,0.35);
}

/* 左侧QQ渐变+统一圆角 */
.contact-left {
    background: linear-gradient(135deg, #165DFF, #3377ff);
    border-radius: 0;
}
/* 右侧微信渐变 */
.contact-right {
    background: linear-gradient(135deg, #00b42a, #22d147);
    border-radius: 0;
}


/* hover悬浮高级效果 */
.contact-left:hover {
    background: linear-gradient(135deg, #0e4be0, #2066ee);
    transform: translateY(-3px);
    box-shadow: 0 -5px 16px rgba(22,93,255,0.3);
}
.contact-right:hover {
    background: linear-gradient(135deg, #009f24, #16b83a);
    transform: translateY(-3px);
    box-shadow: 0 -5px 16px rgba(0,180,42,0.3);
}

/* 点击按压反馈 */
.contact-left:active,
.contact-right:active {
    transform: scale(0.96) translateY(0);
    box-shadow: none;
}

/* 移动端小屏适配 */
@media (max-width: 576px) {
    .contact-left,.contact-right {
        font-size: 13.5px;
        padding: 13px 0;
    }
    .icon-qq,.icon-wechat {
        width: 22px;
        height: 22px;
        line-height: 22px;
    }
}



/* 深色模式自动变色 */
@media (prefers-color-scheme: dark) {
    .fixed-bottom {
        box-shadow: 0 -2px 15px rgba(0,0,0,0.25);
    }
    .split-line {
        background: rgba(255,255,255,0.2);
    }
}

.footer {
    background: #1d2129;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-wrap {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    margin-bottom: 16px;
    font-size: 16px;
}

.footer-col a {
    display: block;
    margin-bottom: 10px;
    color: #999;
    transition: 0.3s;
}

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

.footer-wx img {
    padding: 20px;
    width: 130px;
    height: 130px;
}

.copyright {
    text-align: center;
    color: #666;
    padding-top: 20px;
    border-top: 1px solid #333;
}

/* 响应式 */
@media (max-width: 1200px) {
  .container { width: 100%; }
}
@media (max-width: 992px) {
  .high-grid, .price-grid { grid-template-columns: repeat(2,1fr); }
  .scene-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .hero h1 { font-size: 28px; }
  .nav-links,
  .nav-cta,
  .dropdown-menu {
        display: none !important;
    }

    .mobile-menu {
        display: block;
    }
  .high-grid, .price-grid, .tech-grid, .scene-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; align-items: center; }
  .footer-wrap {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));

}
}