/* 全局重置 */

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;
}


.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(350px,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;
}
.price-txt{font-size:22px;font-weight:bold;color:#165DFF;margin:10px 0;}
.price-txt span{font-size:14px;color:#666;font-weight:normal;}
/* 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-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 #98abd5;
}




.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));

}
}



  * { margin: 0; padding: 0; box-sizing: border-box; font-family: "Microsoft YaHei", Arial, sans-serif; }
        html { scroll-behavior: smooth; }
        a { text-decoration: none; }
        li { list-style: none; }
        .container { width: 80%; margin: 0 auto; padding: 0 100px; }
        .containerbg {width: 100%;margin: 0 auto;padding: 100px 100px;background: #f8fafc;}
        .section-title { text-align: center; margin-bottom: 50px;}
        .section-title h2 { font-size: 32px; color: #0f172a; font-weight: 800; letter-spacing: 1px; margin-bottom: 15px; }
        .section-title p { font-size: 17px; color: #64748b; line-height: 1.8; }
        .breadcrumb { padding:20px 0;color:#64748b; font-size:14px; }
        .breadcrumb a { color:#165DFF; margin:0 5px; }
        .breadcrumb span { color:#0f172a; font-weight:500; }

        /* 顶部导航 */
        .header { background: #ffffff; box-shadow: 0 3px 15px rgba(0,0,0,0.07); position: sticky; top: 0; z-index: 999; }
        .header .container { display: flex; justify-content: space-between; align-items: center; height: 75px; }
        .logo { font-size: 26px; color: #165DFF; font-weight: 900; letter-spacing: 1px; }
        .nav a { color: #334155; font-size: 16px; font-weight: 500; margin: 0 20px; transition: all 0.3s ease; }
        .nav a:hover, .nav a.active { color: #165DFF; font-weight: 600; }

        /* 头部横幅 */
        .hero { background-image: url('https://www.zekuai.com/static/images/bg-2.jpg'); padding: 150px 0; text-align: center; position: relative; overflow: hidden; }
        .hero::after { content: ""; position: absolute; width: 600px; height: 600px; background: rgba(22,93,255,0.05); border-radius: 50%; right: -200px; top: -200px; z-index: 0; }
        .hero .container { position: relative; z-index: 2; }
        .hero h1 { font-size: 46px; color: #0f172a; margin-bottom: 20px; font-weight: 800; letter-spacing: 2px; }
        .hero p { font-size: 19px; color: #475569; margin-bottom: 35px; line-height: 1.9; font-weight: 500; }
        .hero-btns a { display: inline-block; padding: 14px 36px; border-radius: 8px; font-size: 17px; font-weight: 600; margin: 0 12px; transition: all 0.35s ease; }
        .btn-primary { background: #165DFF; color: #fff; border: 1px solid #165DFF; box-shadow: 0 6px 18px rgba(22,93,255,0.25); }
        .btn-primary:hover { background: #0E3BA1; transform: translateY(-3px); box-shadow: 0 8px 25px rgba(22,93,255,0.3); }
        .btn-outline { background: #fff; color: #165DFF; border: 1px solid #165DFF; }
        .btn-outline:hover { background: #f0f5ff; transform: translateY(-3px); }

        /* 核心优势卡片 */
        .bgp-server { padding: 90px 0;}
        .server-feature { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; margin:auto;max-width:80%;}
        .f-item { background: #fff; padding: 35px 25px; border-radius: 16px; text-align: center; border: 1px solid #e2e8f0; transition: all 0.4s ease; }
        .f-item:hover { transform: translateY(-8px); box-shadow: 0 12px 35px rgba(0,0,0,0.07); border-color: #c7d8ff; }
        .f-item img { width: 100px; height: 100px; margin-bottom: 22px; object-fit: contain; }
        .f-item h4 { font-size: 20px; color: #0f172a; margin-bottom: 14px; font-weight: 700; }
        .f-item p { font-size: 15px; color: #64748b; line-height: 1.8; }

        /* 机房介绍 */
        .room-intro {
            background: #ffffff;
            padding: 70px 50px;
            margin: 70px 0 0;
            position: relative;
            overflow: hidden;
        }
        
        .room-intro > * { position: relative; z-index: 2; }
        .room-intro h3 {
            font-size: 30px;
            color: #0f172a;
            margin-bottom: 30px;
            font-weight: 800;
            letter-spacing: 1px;
            padding-left: 25px;
            position: relative;
        }
        
        .room-intro p {
            font-size: 17px;
            line-height: 2.1;
            color: #334155;
            margin-bottom: 25px;
            text-align: justify;
            font-weight: 500;
        }
        .room-intro p strong {
            color: #165DFF;
            font-weight: 700;
            font-size: 18px;
        }
        .room-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            padding: 0;
            margin: 35px 0 40px;
        }
        .room-list li {
            line-height: 2;
            color: #334155;
            font-size: 16px;
            font-weight: 500;
            padding-left: 30px;
            position: relative;
        }
        .room-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            top: 3px;
            color: #165DFF;
            font-weight: 900;
            font-size: 18px;
        }
        .room-data-box{
            display: flex;
            justify-content: space-around;
            background: linear-gradient(135deg,#165DFF,#4080ff);
            border-radius: 16px;
            padding: 35px 20px;
            margin: 40px 0 20px;
            color: #fff;
        }
        .data-item{
            text-align: center;
        }
        .data-num{
            font-size: 36px;
            font-weight: 900;
            margin-bottom: 8px;
        }
        .data-text{
            font-size: 16px;
            opacity: 0.9;
        }

        /* 套餐卡片 */
        .price-container { margin-top: 30px; margin-bottom: 100px; }
        .price-card:hover { transform: translateY(-8px); box-shadow: 0 15px 40px rgba(0,0,0,0.08); border-color: #c7d8ff; }
        .price-card-header { background: linear-gradient(135deg, #165DFF, #2b76ff); padding: 22px; border-bottom: 1px solid #e2e8f0; }
    
        .price-card-body { padding: 28px; }
        .price-card-body .price { font-size: 32px; color: #165DFF; font-weight: 900; margin-bottom: 25px; }
        .price-card-body .price span { font-size: 15px; color: #64748b; font-weight: 500; }
        .config-list { margin-bottom: 28px; }
        .config-list li { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid #f1f5f9; font-size: 15px; color: #334155; font-weight: 500; }
        .config-list li:last-child { border-bottom: none; }
        .config-list li .label { color: #64748b; }



        /* 适用场景 */
        .scene { padding: 90px 0; background: #fff; }
        .scene-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 50px; }
        .scene-item { background: #f8fafc; padding: 35px 20px; border-radius: 16px; text-align: center; transition: all 0.4s ease; font-weight: 600; color: #1e293b; font-size: 16px; }
        .scene-item:hover { background: #e6f0ff; transform: translateY(-5px); }
        .scene-item img { width: 100px; height: 100px; margin-bottom: 15px; object-fit: contain; }

        /* 页脚 */
        .footer { background: #0f172a; color: #fff; padding: 70px 0 25px; }
        .footer-top { display: grid; grid-template-columns: repeat(4, 1fr); gap: 50px; margin-bottom: 50px; }
        .footer-col h3 { font-size: 20px; margin-bottom: 25px; font-weight: 700; position: relative; padding-bottom: 12px; }
        .footer-col h3::after { content: ""; position: absolute; left: 0; bottom: 0; width: 50px; height: 3px; background: #165DFF; border-radius: 2px; }
        .footer-col .footer-desc { font-size: 15px; color: #94a3b8; line-height: 1.9; margin-bottom: 22px; }
        .footer-col ul li { margin-bottom: 15px; }
        .footer-col ul li a { color: #94a3b8; font-size: 15px; transition: color 0.3s; display: flex; align-items: center; gap: 10px; font-weight: 500; }
        .footer-col ul li a:hover { color: #4080ff; }
        .footer-col .li-icon { width: 18px; height: 18px; }
        .copyright { text-align: center; font-size: 14px; color: #64748b; padding-top: 25px; border-top: 1px solid #1e293b; line-height: 1.8; }

        /* 响应式适配 */
        @media (max-width: 1200px) {
            .price-grid { grid-template-columns: repeat(2, 1fr); }
            .server-feature, .scene-grid, .footer-top { grid-template-columns: repeat(2, 1fr); }
            .room-data-box{flex-wrap: wrap;gap:20px;}
        }
        @media (max-width: 768px) {
            .hero h1 { font-size: 34px; }
            .hero p { font-size: 17px; }
            .hero { padding: 70px 0; }
            .section-title h2 { font-size: 26px; }
            .room-intro { padding: 45px 25px; }
            .room-intro h3 { font-size: 26px; }
            .room-intro p { font-size: 16px; }
            .room-list { grid-template-columns: 1fr; }
            .data-num{font-size:30px;}
            .server-feature, .price-grid, .scene-grid, .footer-top { grid-template-columns: 1fr; }
            .nav a { font-size: 15px; margin: 0 12px; }
            .container {width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px;}
            .containerbg {width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px;}
        }
        @media (max-width: 480px) {
            .header .container { flex-direction: column; height: auto; padding: 20px; }
            .nav { margin-top: 18px; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 18px; }
            .hero h1 { font-size: 28px; letter-spacing: 1px; }
            .hero-btns a { padding: 12px 25px; font-size: 15px; margin: 8px 5px; }
            .room-intro { padding: 35px 20px; }
            .data-item{width:45%;}
        }

        .table-box { display: none; }
        img { max-width: 100%; height: auto; }
        
        
        
    /* 宁波机房优势 商务样式 */
.ningbo-room-card {
    padding: 40px;
    background: linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(22, 93, 255, 0.08);
    margin: 50px 0;
    border: 1px solid #eaf2ff;
}
.ningbo-room-title {
    text-align: center;
    margin-bottom: 30px;
}
.ningbo-room-title h3 {
    font-size: 26px;
    font-weight: 700;
    color: #165DFF;
    margin: 0;
}
.ningbo-room-title p {
    font-size: 16px;
    color: #555;
    margin-top: 10px;
}
.ningbo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.ningbo-item {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    border: 1px solid #eef5ff;
    display: flex;
    align-items: flex-start;
}
.ningbo-icon {
    width: 44px;
    height: 44px;
    background: #eaf2ff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    flex-shrink: 0;
    font-size: 20px;
    color: #165DFF;
}
/* ICON 字体图标（全部写在CSS里） */
.ningbo-icon-power::before { content: "⚡"; }
.ningbo-icon-shield::before { content: "🛡️"; }
.ningbo-icon-lock::before { content: "🔒"; }
.ningbo-icon-server::before { content: "🖥️"; }
.ningbo-icon-link::before { content: "🔗"; }
.ningbo-icon-ok::before { content: "✅"; }

.ningbo-item h4 {
    margin: 0 0 8px 0;
    font-size: 17px;
    font-weight: 600;
    color: #333;
}
.ningbo-item p {
    margin: 0;
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}
.ningbo-bottom-bar {
    margin-top: 30px;
    padding: 20px;
    background: #165DFF;
    color: #fff;
    border-radius: 12px;
    text-align: center;
    font-size: 15px;
    font-weight: 500;
}  

/* 适用场景样式 */
.ningbo-scene {
  padding: 50px 0;
}
.ningbo-scene-title {
  text-align: center;
  margin-bottom: 40px;
}
.ningbo-scene-title h3 {
  font-size: 26px;
  font-weight: 700;
  color: #165DFF;
  margin: 0;
}
.ningbo-scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.ningbo-scene-item {
  background: #fff;
  border: 1px solid #eef5ff;
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  transition: all 0.3s;
}
.ningbo-scene-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(22, 93, 255, 0.1);
  border-color: #bdd8ff;
}
.ningbo-scene-icon {
  width: 50px;
  height: 50px;
  background: #f0f7ff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 22px;
  color: #165DFF;
}
/* 场景图标（CSS 内控制） */
.ningbo-scene-game::before { content: "🎮"; }
.ningbo-scene-web::before { content: "🌐"; }
.ningbo-scene-shop::before { content: "🛒"; }
.ningbo-scene-safe::before { content: "🛡️"; }
.ningbo-scene-app::before { content: "📱"; }
.ningbo-scene-data::before { content: "📊"; }
.ningbo-scene-video::before { content: "🎥"; }
.ningbo-scene-company::before { content: "🏢"; }

.ningbo-scene-item h4 {
  font-size: 16px;
  font-weight: 600;
  color: #333;
  margin: 0;
}


/* ==============================================
   机房优势模块 - 2x2 卡片布局
============================================== */
.room-advantages {
    padding: 60px 0;
    background: #fff;
}
.room-advantages .section-title {
    text-align: center;
    font-size: 28px;
    color: #0f2858;
    margin: 0 0 12px;
}
.room-advantages .section-desc {
    text-align: center;
    color: #666;
    margin-bottom: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

/* 2x2 网格布局 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

/* 卡片样式 */
.advantage-card {
    background: #f9fafc;
    border: 1px solid #e5eaf3;
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s ease;
}
.advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(22, 93, 255, 0.1);
    border-color: #165DFF;
}
.advantage-card .card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #165DFF, #2b76ff);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.advantage-card .card-icon i {
    font-size: 28px;
    color: #fff;
}
.advantage-card h3 {
    font-size: 20px;
    color: #0f2858;
    margin: 0 0 16px;
}
.advantage-card p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin: 0;
}

/* 响应式适配：手机端自动变成单列 */
@media (max-width: 768px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    .room-advantages .section-title {
        font-size: 24px;
    }
}


/* 机房模块整体标题 */
.room-intro .room-main-title {
    text-align: center;
    font-size: 28px;
    color: #111;
    margin: 0 0 30px;
    font-weight: 600;
}
/* 左右分栏布局容器 */
.room-tab-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 24px;
}
/* 左侧侧边Tab栏 */
.room-tab-left {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.side-tab-item {
    border: 1px solid #d0e0fc;
    padding: 16px 18px;
    cursor: pointer;
    transition: all 0.24s;
    background: #fff;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}
.side-tab-item.active {
    border-color: #1677ff;
    background: #f0f7ff;
}
/* 图标容器基础样式，使用背景图 */
.tab-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}
/* 分别设置四张图标背景地址 */
.tab-icon-1 .tab-icon {
    background-image: url("https://www.zekuai.com/static/images/server-icon1.png");
}
.tab-icon-2 .tab-icon {
    background-image: url("https://www.zekuai.com/static/images/server-icon2.png");
}
.tab-icon-3 .tab-icon {
    background-image: url("https://www.zekuai.com/static/images/server-icon3.png");
}
.tab-icon-4 .tab-icon {
    background-image: url("https://www.zekuai.com/static/images/server-icon4.png");
}
.tab-text .tab-name {
    font-size: 16px;
    color: #111;
    font-weight: 500;
    margin-bottom: 4px;
}
.tab-text .tab-desc {
    font-size: 13px;
    color: #666;
}
.side-tab-item:hover:not(.active) {
    border-color: #a4c8fb;
    background: #f8fbff;
}
/* 右侧内容面板 */
.room-tab-right {
    border: 1px solid #d0e0fc;
    border-radius: 8px;
    padding: 24px 28px;
    background: #fff;
}
.tab-content-panel {
    display: none;
    line-height: 1.75;
    color: #333;
    font-size: 15px;
}
.tab-content-panel.active {
    display: block;
}
/* 问题标题样式 */
.q-title {
    font-size: 17px;
    color: #1677ff;
    margin: 18px 0 10px;
    font-weight: 600;
}
.q-title:first-child {
    margin-top: 0;
}
/* 支持/禁止业务提示 */
.scene-tip {
    margin-top: 16px;
    color: #222;
}
.ban-tip {
    color: #f53f3f;
    font-weight: 500;
}
/* 优势列表 */
.adv-list {
    padding-left: 18px;
    margin: 8px 0;
}
.adv-list li {
    margin: 6px 0;
}
/* 移动端自适应 */
@media (max-width:768px) {
    .room-tab-layout {
        grid-template-columns: 1fr;
    }
    .room-intro .room-main-title {
        font-size: 22px;
    }
    .room-tab-right {
        padding: 18px;
    }
}








/* ========== 外层三栏网格 ========== */
.price-grid {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 24px !important;
  margin: 30px 0 !important;
}

@media (max-width: 1080px) {
  .price-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 660px) {
  .price-grid {
    grid-template-columns: repeat(1, 1fr) !important;
  }
}

/* ========== 卡片整体：白色圆角、轻阴影、清爽商务 ========== */
.price-card {
  background: #ffffff !important;
  border: 1px solid #c7d0ef !important;
  padding: 28px !important;
  display: flex !important;
  flex-direction: column !important;
  min-height: 100% !important;
  box-sizing: border-box !important;
  transition: 0.22s ease !important;
}

.price-card:hover {
  border-color: #165dff !important;
  box-shadow: 0 8px 24px rgba(22, 93, 255, 0.08) !important;
  transform: translateY(-2px) !important;
}

/* ========== 标题区域 ========== */
.price-card-header {
  background: transparent !important;
  padding: 0 !important;
  margin-bottom: 22px !important;
  border: none !important;
}

.price-card-header h4 {
  font-size: 22px !important;
  font-weight: 700 !important;
  color: #111827 !important;
  margin: 0 !important;
  line-height: 1.35 !important;
}

/* ========== 分割线 ========== */
.price-card-body::before {
  content: "" !important;
  width: 100% !important;
  height: 1px !important;
  background: linear-gradient(90deg, transparent, #e5e7eb, transparent) !important;
  display: block !important;
  margin: 0 0 24px !important;
}

/* ========== 配置列表：彻底左右分开，不粘连 ========== */
.config-list {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 0 auto !important;
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 21px 47px !important;
  font-size: 20px !important;
}

.config-list li {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  width: 100% !important;
  gap: 9px !important;
}

.config-list li:nth-child(n+7) {
  display: none !important;
}

.config-list .label {
  color: #6b7280 !important;
  font-size: 14px !important;
  flex-shrink: 0 !important;
}

.config-list .value {
  color: #111827 !important;
  font-weight: 600 !important;
  font-size: 16px !important;
  white-space: nowrap !important;
  text-align: right !important;
}

/* ========== 价格区域：更高级的红色价格 ========== */
.price-card-body .price {
  margin: 30px 0 28px !important;
  display: flex !important;
  align-items: baseline !important;
  justify-content: center;
}

.price {
  font-size: 22px !important;
  color: #dc2626 !important;
  font-weight: 800 !important;
  line-height: 1 !important;
}

.price span {
  font-size: 18px !important;
  color: #6b7280 !important;
  font-weight: 400 !important;
  margin-left: 4px !important;
}

.price-card-body .price {
  margin: 40px 0 36px !important; /* 上边距从30改成40，拉大距离 */
  display: flex !important;
  align-items: baseline !important;
  justify-content: center;
}

.price {
  font-size: 22px !important;
  color: #dc2626 !important;
  font-weight: 800 !important;
  line-height: 1 !important;
}

.price span {
  font-size: 18px !important;
  color: #6b7280 !important;
  font-weight: 400 !important;
  margin-left: 4px !important;
}



/* 按钮核心修改：margin-top增大，拉大与上方文字间距 */
.buy-btn {
  display: block !important;
  width: 100% !important;
  margin: 48px 0 0 !important; /* 上边距改为48px，距离拉远 */
  background: transparent !important;
  color: #165dff !important;
  border: 1px solid #4080ff !important;
  padding: 10px 20px !important;
  font-size: 16px !important;
  font-weight: 500 !important;
  text-decoration: none !important;
  text-align: center !important;
  white-space: nowrap !important;
  transition: 0.2s ease !important;
}
.buy-btn:hover {
  background: #f7f8fa !important;
  border-color: #000 !important;
  color: #000 !important;
}
/* ========== 小屏幕继续优化 ========== */
@media (max-width: 768px) {
  .price-card {
    padding: 22px !important;
  }

  .price-card-header h4 {
    font-size: 24px !important;
  }

  .price {
    font-size: 42px !important;
  }

  .config-list {
    gap: 16px 20px !important;
  }
}


.price-card .feat-list {
  list-style: none !important;
  padding: 0 !important;
  margin: 20px auto 30px !important;
  /* 整体容器居中，两列固定自适应宽度 */
  display: grid !important;
  grid-template-columns: auto auto !important;
  gap: 14px 32px !important;
  width: fit-content !important;
}
.price-card .feat-list li {
  display: flex !important;
  align-items: center !important;
  font-size: 15px !important;
  color: #333 !important;
  /* 所有条目内部左对齐，文字开头统一对齐 */
  justify-self: start !important;
}
/* 统一前置圆点 */
.price-card .feat-list li::before {
  content: "•";
  color: #165dff;
  margin-right: 8px;
  font-size: 18px;
  line-height: 1;
}



/* 高防防御类型板块 6项3列自适应布局 */
.tech-grid {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 26px !important;
  margin-top: 32px !important;
}
/* 平板2列、手机1列自适应 */
@media (max-width: 1024px) {
  .tech-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}
@media (max-width: 640px) {
  .tech-grid {
    grid-template-columns: repeat(1, 1fr) !important;
  }
}
/* 防御项卡片美化，商务质感 */
.tech-item {
  background: #fff !important;
  border: 1px solid #e5e7eb !important;
  border-radius: 14px !important;
  padding: 24px !important;
  display: flex !important;
  gap: 14px !important;
  transition: 0.2s ease !important;
}
.tech-item:hover {
  border-color: #165dff !important;
  box-shadow: 0 6px 20px rgba(22, 93, 255, 0.06) !important;
  transform: translateY(-2px) !important;
}
/* 图标尺寸优化 */
.tech-item .icon {
  width: 36px !important;
  height: 36px !important;
  flex-shrink: 0 !important;
}
/* 标题文字样式 */
.tech-item h4 {
  font-size: 20px !important;
  color: #111827 !important;
  margin: 0 0 8px !important;
  font-weight: 600 !important;
}
/* 描述文字弱化 */
.tech-item p {
  font-size: 15px !important;
  color: #6b7280 !important;
  margin: 0 !important;
  line-height: 1.6 !important;
}

.price-card .buy {
  display: inline-block !important;
  width: auto !important;
  min-width: 130px !important;
  padding: 10px 28px !important;
  font-size: 15px !important;
  border-radius: 8px !important;
  text-align: center !important;
  margin: 0 auto !important;
}

.price-card {
  text-align: center !important;
}