/* ===== 全局样式 - 科技蓝主题 ===== */
:root {
    --primary: #1a6fd6;
    --primary-dark: #0d4f9e;
    --primary-light: #4a9eff;
    --accent: #e63946;
    --dark: #0f2027;
    --dark-blue: #1a2332;
    --gray: #666;
    --light-bg: #f5f7fa;
    --white: #fff;
    --border: #e0e6ed;
    --card-shadow: 0 5px 25px rgba(0,0,0,.06);
    --transition: all .35s cubic-bezier(.4,0,.2,1);
    --success: #22c55e;
    --warning: #f59e0b;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: "Microsoft YaHei", "PingFang SC", -apple-system, BlinkMacSystemFont, sans-serif;
    color: #333;
    line-height: 1.7;
    overflow-x: hidden;
    background: #fff;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

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

.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 32px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 25px rgba(26,111,214,.35); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.8); }
.btn-outline:hover { background: #fff; color: var(--primary); }
.btn-lg { padding: 16px 42px; font-size: 17px; }
.btn-sm { padding: 8px 18px; font-size: 14px; }

/* ===== 顶部导航 ===== */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,.08);
    z-index: 1000;
    transition: all .3s;
}
.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.logo a { display: flex; align-items: center; gap: 10px; }
.logo-icon {
    width: 42px; height: 42px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 20px;
}
.logo-text h1 { font-size: 21px; color: var(--dark); line-height: 1.1; }
.logo-text small { font-size: 9px; color: var(--gray); letter-spacing: 1.5px; text-transform: uppercase; }

.nav ul { display: flex; gap: 4px; }
.nav ul li a {
    display: block;
    padding: 8px 16px;
    font-size: 15px;
    color: #444;
    border-radius: 6px;
    transition: all .25s;
    font-weight: 500;
}
.nav ul li a:hover, .nav ul li.active a {
    color: var(--primary);
    background: rgba(26,111,214,.08);
}

.header-actions { display: flex; align-items: center; gap: 18px; }
.lang-btn {
    display: flex; align-items: center; gap: 6px;
    background: rgba(26,111,214,.08);
    border: 1px solid rgba(26,111,214,.2);
    color: var(--primary);
    padding: 7px 14px; border-radius: 20px;
    cursor: pointer; font-size: 13px;
    transition: all .25s;
}
.lang-btn:hover { background: var(--primary); color: #fff; }
.header-phone {
    display: flex; align-items: center; gap: 8px;
    color: var(--primary); font-weight: 600; font-size: 16px;
}
.header-phone i { font-size: 18px; }

.mobile-menu-btn { display: none; font-size: 24px; color: var(--dark); cursor: pointer; }

/* ===== Banner - 核心竞争力 ===== */
.banner {
    margin-top: 72px;
    min-height: 720px;
    height: 100vh;
    max-height: 820px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    background: var(--dark);
}

/* 轮播背景 */
.banner-slides { position: absolute; inset: 0; z-index: 0; }
.slide {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    opacity: 0; visibility: hidden;
    transform: scale(1);
    transition: opacity 1.4s ease, visibility 1.4s ease, transform 7s ease-out;
}
.slide.active { opacity: 1; visibility: visible; transform: scale(1.1); }

/* 暗色遮罩 */
.banner-overlay {
    position: absolute; inset: 0; z-index: 2;
    background: linear-gradient(120deg, rgba(6,40,58,.82) 0%, rgba(8,50,80,.55) 55%, rgba(6,28,52,.72) 100%);
}

/* 动态网格 */
.banner-grid {
    position: absolute; inset: 0; z-index: 3; pointer-events: none;
    background-image:
        linear-gradient(rgba(90,200,255,.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(90,200,255,.08) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(circle at 50% 45%, #000 28%, transparent 78%);
    -webkit-mask-image: radial-gradient(circle at 50% 45%, #000 28%, transparent 78%);
}

/* 粒子画布 */
#bannerParticles { position: absolute; inset: 0; z-index: 3; pointer-events: none; }

/* 漂浮光点 */
.banner-floaters { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
.banner-floaters span {
    position: absolute; display: block;
    border-radius: 50%;
    background: rgba(120,200,255,.4);
    box-shadow: 0 0 18px rgba(90,180,255,.5);
    animation: floatUp linear infinite;
}
.banner-floaters span:nth-child(1){ left:8%; bottom:-20px; width:14px; height:14px; animation-duration:11s; animation-delay:0s; }
.banner-floaters span:nth-child(2){ left:22%; bottom:-20px; width:8px; height:8px; animation-duration:14s; animation-delay:2s; }
.banner-floaters span:nth-child(3){ left:40%; bottom:-20px; width:10px; height:10px; animation-duration:9s; animation-delay:4s; }
.banner-floaters span:nth-child(4){ left:55%; bottom:-20px; width:6px; height:6px; animation-duration:13s; animation-delay:1s; }
.banner-floaters span:nth-child(5){ left:68%; bottom:-20px; width:12px; height:12px; animation-duration:10s; animation-delay:5s; }
.banner-floaters span:nth-child(6){ left:82%; bottom:-20px; width:9px; height:9px; animation-duration:15s; animation-delay:3s; }
.banner-floaters span:nth-child(7){ left:92%; bottom:-20px; width:7px; height:7px; animation-duration:12s; animation-delay:6s; }
@keyframes floatUp {
    from { transform: translateY(0); opacity: 0; }
    20%  { opacity: 1; }
    to   { transform: translateY(-750px); opacity: 0; }
}

/* 轮播箭头 */
.banner-arrows {
    position: absolute; top: 50%; transform: translateY(-50%);
    z-index: 7; cursor: pointer;
    width: 50px; height: 50px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 18px;
    background: rgba(255,255,255,.14);
    border: 1px solid rgba(255,255,255,.35);
    backdrop-filter: blur(4px);
    transition: all .3s;
}
.banner-arrows:hover { background: rgba(26,111,214,.9); border-color: transparent; transform: translateY(-50%) scale(1.1); }
.banner-arrows.prev { left: 30px; }
.banner-arrows.next { right: 30px; }

/* Banner 内容 */
.banner-content {
    position: relative; z-index: 5;
    text-align: center;
    padding: 40px 0;
    animation: fadeUp 1s ease;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.badge {
    display: inline-block;
    font-size: 14px; letter-spacing: .5px;
    padding: 8px 22px; margin-bottom: 24px;
    color: #dbebff;
    border: 1px solid rgba(255,255,255,.3);
    border-radius: 30px;
    background: rgba(255,255,255,.08);
    backdrop-filter: blur(4px);
}

.banner-content h2 {
    font-size: 52px; font-weight: 800; line-height: 1.2;
    margin-bottom: 18px;
    background: linear-gradient(135deg, #fff 30%, #7ec8e3 70%, #4a9eff);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none;
}
.banner-desc { font-size: 18px; color: rgba(255,255,255,.85); max-width: 680px; margin: 0 auto 28px; line-height: 1.8; }
.banner-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 42px; }

/* Banner 搜索框 */
.banner-search {
    position: relative;
    max-width: 600px; margin: 0 auto;
    display: flex; align-items: center;
    background: rgba(255,255,255,.12);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,.3);
    border-radius: 50px;
    padding: 6px;
    transition: all .4s;
    z-index: 10;
}
.banner-search:focus-within {
    border-color: rgba(74,158,255,.8);
    box-shadow: 0 0 0 4px rgba(74,158,255,.15);
    transform: scale(1.02);
}
.banner-search input {
    flex: 1; border: none; outline: none; background: transparent;
    color: #fff; font-size: 15px; padding: 13px 22px; font-family: inherit;
}
.banner-search input::placeholder { color: rgba(255,255,255,.55); }
.banner-search button {
    border: none; cursor: pointer;
    padding: 0 28px; height: 46px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff; font-size: 15px; font-weight: 600;
    border-radius: 24px;
    display: inline-flex; align-items: center; gap: 6px;
    transition: all .3s; white-space: nowrap;
}
.banner-search button:hover { box-shadow: 0 4px 20px rgba(74,158,255,.5); transform: scale(1.05); }

/* 搜索结果下拉 */
.search-results {
    display: none;
    position: absolute;
    top: calc(100% + 12px); left: 0; right: 0;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 20px 60px rgba(0,0,0,.25);
    max-height: 400px;
    overflow-y: auto;
    z-index: 100;
    text-align: left;
    border: 1px solid rgba(0,0,0,.06);
}
.search-results.active { display: block; animation: fadeInUp .25s ease; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.search-results .sr-item {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 20px;
    border-bottom: 1px solid #f0f0f0;
    cursor: pointer;
    transition: all .2s;
    color: #333;
}
.search-results .sr-item:hover { background: rgba(26,111,214,.06); padding-left: 26px; }
.search-results .sr-item i { color: var(--primary); width: 20px; font-size: 15px; }
.search-results .sr-item .sr-cat { margin-left: auto; font-size: 11px; color: var(--primary); background: rgba(26,111,214,.1); padding: 3px 10px; border-radius: 10px; }
.search-results .sr-empty { padding: 30px; text-align: center; color: var(--gray); font-size: 14px; }

/* 热词 */
.search-hot-tags {
    margin-top: 16px;
    display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap;
}
.search-hot-tags span { color: rgba(255,255,255,.5); font-size: 13px; }
.search-hot-tags a {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 15px;
    color: rgba(255,255,255,.75);
    font-size: 12px;
    cursor: pointer;
    transition: all .3s;
}
.search-hot-tags a:hover { background: rgba(255,255,255,.2); color: #fff; }

/* 轮播指示器 */
.banner-dots {
    position: absolute; left: 0; right: 0; bottom: 70px; z-index: 7;
    display: flex; justify-content: center; gap: 10px;
}
.banner-dots .dot {
    width: 11px; height: 11px; border-radius: 50%;
    background: rgba(255,255,255,.35);
    border: 1px solid rgba(255,255,255,.5);
    cursor: pointer; transition: all .3s;
}
.banner-dots .dot.active { background: #fff; transform: scale(1.3); box-shadow: 0 0 10px rgba(255,255,255,.6); }

/* 向下滚动 */
.banner-scroll-hint {
    position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%);
    z-index: 7; text-align: center; cursor: pointer;
    color: rgba(255,255,255,.7); font-size: 12px; letter-spacing: 1px;
    animation: bob 2s ease-in-out infinite;
}
.banner-scroll-hint i { display: block; font-size: 20px; margin-top: 4px; }
@keyframes bob { 0%,100%{ transform: translate(-50%,0); } 50%{ transform: translate(-50%,8px); } }

/* ===== 通用区块 ===== */
.section { padding: 90px 0; }
.bg-light { background: var(--light-bg); }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-size: 34px; color: var(--dark); margin-bottom: 12px; position: relative; display: inline-block; font-weight: 700; }
.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -14px; left: 50%;
    transform: translateX(-50%);
    width: 60px; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
}
.section-title p { color: var(--gray); font-size: 16px; margin-top: 20px; }

/* ===== 核心业务 ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.service-card {
    background: #fff;
    padding: 38px 26px;
    border-radius: 14px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}
.service-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transform: scaleX(0); transform-origin: center;
    transition: transform .4s;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(26,111,214,.12);
    border-color: rgba(26,111,214,.2);
}
.service-icon {
    width: 76px; height: 76px;
    margin: 0 auto 20px;
    border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
    font-size: 30px;
    background: linear-gradient(135deg, rgba(26,111,214,.1), rgba(74,158,255,.08));
    color: var(--primary);
    transition: all .4s;
}
.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    transform: scale(1.1);
}
.service-card h3 { font-size: 18px; color: var(--dark); margin-bottom: 12px; font-weight: 700; }
.service-card p { font-size: 14px; color: var(--gray); line-height: 1.7; flex: 1; }
.card-link {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    margin-top: 18px; color: var(--primary); font-size: 14px; font-weight: 600;
    align-self: center;
}
.card-link i { transition: transform .3s; font-size: 13px; }
.service-card:hover .card-link { color: var(--primary-dark); }
.service-card:hover .card-link i { transform: translateX(4px); }

/* ===== SLA 承诺区块（核心：具体化+可量化） ===== */
.sla-section {
    background: linear-gradient(135deg, #0f2027, #1a3a5c, #2c5364);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.sla-section::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(74,158,255,.1), transparent 50%),
                radial-gradient(circle at 80% 30%, rgba(230,57,70,.08), transparent 50%);
}
.sla-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative; z-index: 2;
}
.sla-card {
    text-align: center;
    padding: 35px 20px;
    border-radius: 14px;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    backdrop-filter: blur(4px);
    transition: all .4s;
}
.sla-card:hover {
    background: rgba(255,255,255,.1);
    transform: translateY(-6px);
    border-color: rgba(74,158,255,.4);
}
.sla-number {
    font-size: 52px; font-weight: 800;
    background: linear-gradient(135deg, #7ec8e3, #4a9eff);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1; margin-bottom: 10px;
}
.sla-card h4 { font-size: 17px; margin-bottom: 8px; color: #fff; }
.sla-card p { font-size: 13px; color: rgba(255,255,255,.65); line-height: 1.6; }

/* ===== 案例 ===== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.case-card {
    border-radius: 14px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    cursor: pointer;
    background: #fff;
    border: 1px solid var(--border);
}
.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0,0,0,.1);
}
.case-img {
    width: 100%; height: 220px;
    background-size: cover; background-position: center;
    position: relative;
}
.case-img::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,.4));
}
.case-tag {
    position: absolute; bottom: 12px; left: 12px; z-index: 2;
    background: var(--primary); color: #fff;
    padding: 4px 14px; border-radius: 20px;
    font-size: 12px; font-weight: 600;
}
.case-info { padding: 22px; }
.case-info h4 { font-size: 17px; color: var(--dark); margin-bottom: 8px; }
.case-info p { font-size: 14px; color: var(--gray); }

/* ===== 案例筛选 ===== */
.case-filter {
    display: flex; justify-content: center; gap: 12px;
    margin-bottom: 40px; flex-wrap: wrap;
}
.filter-btn {
    padding: 9px 26px; border-radius: 30px;
    border: 1px solid var(--border);
    background: #fff; color: #555;
    font-size: 14px; cursor: pointer;
    transition: all .3s; font-weight: 500;
}
.filter-btn:hover, .filter-btn.active {
    background: var(--primary); color: #fff; border-color: var(--primary);
}

/* ===== 优势（信任模块） ===== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.advantage-item {
    text-align: center;
    padding: 35px 22px;
    border-radius: 14px;
    background: #fff;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    transition: all .4s;
}
.advantage-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 40px rgba(26,111,214,.1);
}
.adv-num {
    font-size: 42px; font-weight: 800;
    color: var(--primary);
    line-height: 1; margin-bottom: 12px;
}
.advantage-item h4 { font-size: 17px; color: var(--dark); margin-bottom: 8px; }
.advantage-item p { font-size: 14px; color: var(--gray); }

/* ===== 服务流程 ===== */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative;
}
.process-step {
    text-align: center;
    padding: 30px 20px;
    position: relative;
}
.process-step::after {
    content: '';
    position: absolute; top: 55px; right: -15px;
    width: 30px; height: 2px;
    background: var(--primary);
    opacity: .3;
}
.process-step:last-child::after { display: none; }
.process-num {
    width: 60px; height: 60px;
    margin: 0 auto 18px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    box-shadow: 0 8px 20px rgba(26,111,214,.25);
}
.process-step h4 { font-size: 17px; color: var(--dark); margin-bottom: 8px; }
.process-step p { font-size: 14px; color: var(--gray); }

/* ===== 客户评价 ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.testimonial-card {
    background: #fff;
    padding: 32px 28px;
    border-radius: 14px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    transition: all .3s;
}
.testimonial-card:hover { transform: translateY(-5px); box-shadow: 0 15px 40px rgba(0,0,0,.08); }
.testi-text { position: relative; margin-bottom: 20px; }
.testi-text i { font-size: 24px; color: rgba(26,111,214,.15); margin-bottom: 10px; }
.testi-text p { font-size: 14px; color: #555; line-height: 1.8; font-style: italic; }
.testi-author { display: flex; flex-direction: column; gap: 2px; padding-top: 16px; border-top: 1px solid var(--border); }
.testi-author strong { font-size: 15px; color: var(--dark); }
.testi-author span { font-size: 13px; color: var(--gray); }

/* ===== 新闻 ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.news-card {
    background: #fff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all .4s;
}
.news-card:hover { transform: translateY(-6px); box-shadow: 0 18px 45px rgba(0,0,0,.1); }
.news-thumb {
    width: 100%; height: 160px;
    display: flex; align-items: center; justify-content: center;
    font-size: 42px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
}
.news-body { padding: 22px; }
.news-cat {
    display: inline-block;
    padding: 3px 12px; border-radius: 12px;
    font-size: 11px; font-weight: 600;
    background: rgba(26,111,214,.1); color: var(--primary);
    margin-bottom: 12px;
}
.news-meta { font-size: 12px; color: var(--gray); margin-bottom: 10px; }
.news-meta i { margin-right: 4px; }
.news-body h3 { font-size: 17px; color: var(--dark); margin-bottom: 10px; line-height: 1.4; }
.news-body p { font-size: 14px; color: var(--gray); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.read-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; color: var(--primary); font-size: 13px; font-weight: 600; }
.read-more i { transition: transform .3s; }
.news-card:hover .read-more i { transform: translateX(4px); }

/* ===== 新闻弹层 ===== */
.news-modal {
    position: fixed; inset: 0; z-index: 2000;
    background: rgba(0,0,0,.7);
    display: none;
    align-items: center; justify-content: center;
    padding: 20px;
}
.news-modal.active { display: flex; animation: fadeIn .3s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.news-modal-content {
    background: #fff;
    border-radius: 16px;
    max-width: 760px; width: 100%;
    max-height: 85vh; overflow-y: auto;
    position: relative;
    animation: slideUp2 .4s ease;
}
@keyframes slideUp2 { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.news-modal-close {
    position: absolute; top: 16px; right: 16px;
    width: 38px; height: 38px; border-radius: 50%;
    border: none; background: rgba(0,0,0,.06);
    cursor: pointer; font-size: 16px; color: #555;
    display: flex; align-items: center; justify-content: center;
    transition: all .25s; z-index: 10;
}
.news-modal-close:hover { background: var(--accent); color: #fff; }
.news-modal-cover {
    width: 100%; height: 180px;
    display: flex; align-items: center; justify-content: center;
    font-size: 52px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    border-radius: 16px 16px 0 0;
}
.news-modal-body { padding: 30px 36px; }
.nm-meta { display: flex; align-items: center; gap: 16px; margin: 16px 0; font-size: 13px; color: var(--gray); }
.news-modal-body h2 { font-size: 24px; color: var(--dark); margin-bottom: 16px; line-height: 1.4; }
.nm-content { font-size: 15px; color: #444; line-height: 1.9; }
.nm-content p { margin-bottom: 14px; }
.nm-content ul { padding-left: 20px; margin-bottom: 14px; }
.nm-content ul li { list-style: disc; margin-bottom: 6px; }
.nm-content strong { color: var(--primary); }

/* ===== 招聘 ===== */
.jobs-section .container { max-width: 900px; }
.job-card {
    background: #fff;
    border-radius: 14px;
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    transition: all .3s;
}
.job-card:hover { transform: translateY(-4px); box-shadow: 0 15px 40px rgba(0,0,0,.08); }
.job-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; }
.job-header h3 { font-size: 20px; color: var(--dark); display: flex; align-items: center; }
.job-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.job-tags span {
    padding: 4px 12px; border-radius: 12px;
    font-size: 12px; font-weight: 500;
    background: rgba(26,111,214,.08); color: var(--primary);
}
.job-body h4 { font-size: 15px; color: var(--dark); margin: 16px 0 10px; font-weight: 700; }
.job-body ul { padding-left: 18px; }
.job-body ul li { list-style: disc; font-size: 14px; color: #555; margin-bottom: 5px; }
.job-apply { margin-top: 22px; }

/* ===== 联系表单 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}
.contact-info-box h3, .contact-form-box h3 {
    font-size: 22px; color: var(--dark); margin-bottom: 28px; font-weight: 700;
}
.contact-item {
    display: flex; gap: 16px;
    margin-bottom: 26px;
    align-items: flex-start;
}
.ci-icon {
    width: 48px; height: 48px; flex-shrink: 0;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
    background: rgba(26,111,214,.1);
    color: var(--primary);
}
.contact-item h4 { font-size: 15px; color: var(--dark); margin-bottom: 3px; }
.contact-item p { font-size: 14px; color: var(--gray); }

.form-row { margin-bottom: 20px; }
.form-row.half { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row label { display: block; margin-bottom: 7px; font-size: 14px; color: #333; font-weight: 500; }
.form-row label .req { color: var(--accent); }
.form-row input, .form-row select, .form-row textarea {
    width: 100%; padding: 12px 14px;
    border: 1px solid #d8dee9; border-radius: 8px;
    font-size: 14px; font-family: inherit;
    transition: all .3s;
    background: #fafbfd;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
    outline: none; border-color: var(--primary); background: #fff;
    box-shadow: 0 0 0 3px rgba(26,111,214,.1);
}
.form-row textarea { min-height: 120px; resize: vertical; }

/* ===== 悬浮咨询 ===== */
.float-consult {
    position: fixed; right: 24px; bottom: 100px; z-index: 999;
    display: flex; align-items: center; gap: 8px;
    background: var(--primary); color: #fff;
    padding: 12px 20px; border-radius: 30px;
    font-size: 14px; font-weight: 500;
    cursor: pointer;
    box-shadow: 0 6px 25px rgba(26,111,214,.35);
    transition: all .3s;
}
.float-consult:hover { transform: scale(1.05); box-shadow: 0 8px 30px rgba(26,111,214,.45); }
.float-consult i { font-size: 16px; }

/* ===== 回到顶部 ===== */
.back-top {
    position: fixed; right: 24px; bottom: 40px; z-index: 999;
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--dark); color: #fff;
    display: none; align-items: center; justify-content: center;
    font-size: 16px; cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,.2);
    transition: all .3s;
}
.back-top.show { display: flex; }
.back-top:hover { background: var(--primary); transform: translateY(-3px); }

/* ===== CTA 区块 ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff; text-align: center;
    padding: 70px 0;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255,255,255,.05) 0%, transparent 70%);
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 32px; margin-bottom: 12px; font-weight: 700; }
.cta-section p { font-size: 17px; opacity: .85; margin-bottom: 28px; }

/* ===== 页脚 ===== */
.footer {
    background: var(--dark-blue);
    color: rgba(255,255,255,.6);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.2fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 600; }
.footer-logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 20px; color: #fff; margin-bottom: 14px; font-weight: 700;
}
.footer-logo i { color: var(--primary-light); }
.footer-col p { font-size: 14px; line-height: 1.8; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; transition: color .25s; }
.footer-col ul li a:hover { color: var(--primary-light); }
.contact-list li { display: flex; align-items: center; gap: 8px; }
.contact-list li i { color: var(--primary-light); width: 16px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
}
.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: var(--primary-light); }

/* ===== 关于页 ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    align-items: center;
}
.about-text h3 { font-size: 26px; color: var(--dark); margin-bottom: 20px; font-weight: 700; }
.about-text p { font-size: 15px; color: #555; margin-bottom: 14px; line-height: 1.8; }
.about-img {
    width: 100%; height: 380px;
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 100px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: rgba(255,255,255,.9);
    box-shadow: 0 20px 50px rgba(26,111,214,.2);
}

/* 团队 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.team-card {
    text-align: center;
    padding: 30px 20px;
    border-radius: 14px;
    background: #fff;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    transition: all .3s;
}
.team-card:hover { transform: translateY(-6px); box-shadow: 0 15px 40px rgba(0,0,0,.08); }
.team-avatar {
    width: 76px; height: 76px; margin: 0 auto 16px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px; font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
}
.team-card h4 { font-size: 17px; color: var(--dark); margin-bottom: 4px; }
.team-card span { font-size: 13px; color: var(--primary); font-weight: 500; }
.team-card p { font-size: 13px; color: var(--gray); margin-top: 8px; }

/* 服务详情 */
.service-detail { padding: 0; }
.service-block { padding: 60px 0; }
.service-block:nth-child(even) { background: var(--light-bg); }
.service-block-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
.service-block.reverse .service-block-inner { direction: rtl; }
.service-block.reverse .service-text { direction: ltr; }
.service-img {
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0,0,0,.12);
    aspect-ratio: 4/3;
}
.service-text h3 { font-size: 24px; color: var(--dark); margin-bottom: 16px; font-weight: 700; }
.service-text .s-icon { font-size: 36px; color: var(--primary); margin-bottom: 12px; display: block; }
.service-text p { font-size: 15px; color: #555; margin-bottom: 16px; }
.service-text .label { font-size: 14px; font-weight: 700; color: var(--dark); display: block; margin-bottom: 10px; margin-top: 16px; }
.service-text ul { padding-left: 18px; margin-bottom: 12px; }
.service-text ul li { list-style: disc; font-size: 14px; color: #555; margin-bottom: 6px; }
.service-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.service-tags span {
    padding: 5px 14px; border-radius: 6px;
    font-size: 12px; font-weight: 500;
    background: rgba(26,111,214,.08); color: var(--primary);
}

/* ===== 页面Banner ===== */
.page-banner {
    margin-top: 72px;
    padding: 80px 0 60px;
    background: linear-gradient(135deg, #0f2027, #1a3a5c, #2c5364);
    color: #fff; text-align: center;
    position: relative;
    overflow: hidden;
}
.page-banner::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle at 30% 40%, rgba(74,158,255,.08), transparent 60%);
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner h2 { font-size: 38px; font-weight: 700; margin-bottom: 10px; }
.page-banner p { font-size: 16px; opacity: .8; }

/* 价值卡片 */
.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.value-card {
    text-align: center;
    padding: 38px 28px;
    border-radius: 14px;
    background: #fff;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    transition: all .3s;
}
.value-card:hover { transform: translateY(-6px); box-shadow: 0 15px 40px rgba(26,111,214,.1); }
.value-card i { font-size: 42px; color: var(--primary); margin-bottom: 18px; }
.value-card h4 { font-size: 18px; color: var(--dark); margin-bottom: 10px; }
.value-card p { font-size: 14px; color: var(--gray); }

/* ===== 地图 ===== */
.map-box { position: relative; }
.map-loading {
    position: absolute; inset: 0; z-index: 5;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    background: var(--light-bg);
    transition: opacity .5s;
}
.map-loading.hide { opacity: 0; pointer-events: none; }
.map-loading i { font-size: 40px; color: var(--primary); margin-bottom: 12px; }
.map-loading p { font-size: 14px; color: var(--gray); }
.map-embed { width: 100%; height: 100%; border: none; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .services-grid, .advantages-grid, .sla-grid { grid-template-columns: repeat(2, 1fr); }
    .cases-grid, .news-grid, .testimonials-grid, .team-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid, .about-grid, .service-block-inner { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .nav { display: none; position: fixed; top: 72px; left: 0; right: 0; background: #fff; box-shadow: 0 10px 30px rgba(0,0,0,.1); padding: 20px; }
    .nav.mobile-open { display: block; }
    .nav ul { flex-direction: column; }
    .mobile-menu-btn { display: block; }
    .header-phone { display: none; }
    .services-grid, .advantages-grid, .sla-grid, .cases-grid, .news-grid, .testimonials-grid, .team-grid, .value-grid { grid-template-columns: 1fr; }
    .banner-content h2 { font-size: 28px; }
    .banner-desc { font-size: 15px; }
    .section { padding: 60px 0; }
    .section-title h2 { font-size: 26px; }
    .footer-grid { grid-template-columns: 1fr; }
    .form-row.half { grid-template-columns: 1fr; }
}