:root{
  --blue:#165DFF;
  --blue-d:#0E42D2;
  --blue-l:#E8F3FF;
  --ink:#1D2129;
  --ink2:#4E5969;
  --ink3:#86909C;
  --bg:#FFFFFF;
  --bg2:#F7F8FA;
  --line:#E5E6EB;
  --shadow:0 4px 20px rgba(0,0,0,.06);
  --shadow-h:0 12px 40px rgba(22,93,255,.15);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== 顶部导航 ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:999;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,0,0,.06);transition:all .3s}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--blue)}
.nav-logo .logo-icon{height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
.nav-links{display:flex;gap:8px;align-items:center}
.nav-links a{padding:8px 16px;border-radius:6px;font-size:14px;color:var(--ink2);font-weight:500;transition:all .25s}
.nav-links a:hover{color:var(--blue);background:var(--blue-l)}
.nav-cta{background:var(--blue);color:#fff!important;padding:10px 22px!important;border-radius:8px!important;font-weight:600!important}
.nav-cta:hover{background:var(--blue-d)!important;transform:translateY(-1px);box-shadow:var(--shadow-h)}

/* ===== 通用 ===== */
section{padding:80px 0;position:relative}
.section-head{text-align:center;margin-bottom:56px}
.section-head .eyebrow{display:inline-block;padding:4px 16px;background:var(--blue-l);color:var(--blue);border-radius:20px;font-size:13px;font-weight:600;margin-bottom:12px;letter-spacing:1px}
.section-head h2{font-size:32px;font-weight:800;color:var(--ink);margin-bottom:12px;line-height:1.4}
.section-head p{font-size:16px;color:var(--ink2);max-width:680px;margin:0 auto}

/* 渐入动画 */
.reveal{opacity:0;transform:translateY(30px);transition:all .7s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:translateY(0)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;background:var(--blue);color:#fff;border:none;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s;letter-spacing:.5px}
.btn:hover{background:var(--blue-d);transform:translateY(-2px);box-shadow:var(--shadow-h)}
.btn-outline{background:transparent;color:var(--blue);border:2px solid var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-light{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-light:hover{background:rgba(255,255,255,.28)}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:8px}

/* 卡片 */
.card{background:#fff;border-radius:14px;padding:28px;box-shadow:var(--shadow);transition:all .35s;border:1px solid rgba(0,0,0,.04)}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 48px rgba(22,93,255,.12)}

/* ===== Banner ===== */
.banner{height:100vh;min-height:680px;position:relative;display:flex;align-items:center;overflow:hidden;background:#0A0E27;padding-top:72px}
.banner-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
/* 背景视频 */
.banner-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;opacity:.5}
.banner-bg::before{content:'';position:absolute;inset:0;z-index:1;background:radial-gradient(ellipse 80% 60% at 70% 40%,rgba(22,93,255,.35),transparent),radial-gradient(ellipse 60% 50% at 20% 70%,rgba(54,197,240,.2),transparent),linear-gradient(180deg,rgba(10,14,39,.78) 0%,rgba(15,27,60,.6) 50%,rgba(10,14,39,.85) 100%)}
/* 粒子网格 */
.banner-grid{position:absolute;inset:0;z-index:1;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(ellipse 70% 60% at 50% 50%,#000 40%,transparent 100%)}
/* 浮动光球 */
.banner-orb{position:absolute;z-index:1;border-radius:50%;filter:blur(40px);opacity:.5;animation:float 8s ease-in-out infinite}
.banner-orb.a{width:300px;height:300px;background:var(--blue);top:15%;right:10%;animation-delay:0s}
.banner-orb.b{width:200px;height:200px;background:#36C5F0;bottom:20%;left:5%;animation-delay:2s}
.banner-orb.c{width:150px;height:150px;background:#7B5CFF;top:50%;right:30%;animation-delay:4s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(30px,-40px) scale(1.1)}66%{transform:translate(-20px,30px) scale(.95)}}
.banner-content{position:relative;z-index:2;max-width:780px;color:#fff}
.banner-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:30px;font-size:13px;color:rgba(255,255,255,.85);margin-bottom:24px;backdrop-filter:blur(8px)}
.banner-badge .dot{width:8px;height:8px;border-radius:50%;background:#36C5F0;box-shadow:0 0 12px #36C5F0}
.banner h1{font-size:clamp(32px,5vw,52px);font-weight:900;line-height:1.25;margin-bottom:20px;letter-spacing:-.5px}
.banner h1 .grad{background:linear-gradient(135deg,#fff 30%,#93C5FD 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.banner-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:36px;max-width:640px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px}
.banner-tags span{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:8px;font-size:13px;color:rgba(255,255,255,.8);backdrop-filter:blur(6px)}
.banner-tags span i{color:#36C5F0;font-size:12px}
.banner-cta{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.banner-scroll{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);z-index:2;color:rgba(255,255,255,.5);font-size:13px;display:flex;flex-direction:column;align-items:center;gap:8px;animation:bounce 2s ease infinite}
.banner-scroll .line{width:1px;height:40px;background:linear-gradient(to bottom,rgba(255,255,255,.5),transparent)}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* ===== 为什么选择我们 ===== */
.why-wrap{display:grid;grid-template-columns:280px 1fr;gap:40px;align-items:start}
.why-menu{position:sticky;top:100px;display:flex;flex-direction:column;gap:4px;background:var(--bg2);border-radius:14px;padding:12px}
.why-menu-item{padding:16px 20px;border-radius:10px;cursor:pointer;font-size:14px;font-weight:500;color:var(--ink2);transition:all .3s;display:flex;align-items:center;gap:12px;border:none;background:transparent;text-align:left;width:100%}
.why-menu-item i{width:28px;height:28px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:13px;background:rgba(22,93,255,.08);color:var(--blue);transition:all .3s}
.why-menu-item:hover{background:rgba(22,93,255,.06);color:var(--blue)}
.why-menu-item.active{background:var(--blue);color:#fff;box-shadow:0 8px 24px rgba(22,93,255,.3)}
.why-menu-item.active i{background:rgba(255,255,255,.2);color:#fff}
.why-panel{display:none;animation:fadeUp .45s ease}
.why-panel.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.why-panel-head{margin-bottom:28px}
.why-panel-head h3{font-size:22px;font-weight:800;color:var(--ink);margin-bottom:8px}
.why-panel-head p{font-size:15px;color:var(--ink2);line-height:1.8}
.why-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.why-card{padding:24px;border-radius:12px;position: relative; height: 217px; background:var(--bg2);border:1px solid var(--line);transition:all .3s;position:relative;overflow:hidden}
.why-card::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:var(--blue);transform:scaleY(0);transition:transform .3s;transform-origin:center}
.why-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(22,93,255,.2)}
.why-card:hover::before{transform:scaleY(1)}
.why-card-img{position: absolute;top: 5px;left: 5px;right:5px;bottom: 5px;z-index: 0;border-radius: 10px;overflow: hidden;background-size: auto 100%;}
.why-card:hover .why-card-img{opacity: 0.2;}
.why-card-text{visibility: hidden;z-index: 2;transition:all .3s;position:absolute;top:24px;left:24px;right: 24px;}
.why-card:hover .why-card-text{visibility: visible;}
.why-card .icon{width:44px;height:44px;border-radius:10px;background:var(--blue-l);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px}
.why-card h4{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.why-card p{font-size:14px;color:var(--ink2);line-height:1.7}

/* ===== 我是谁 ===== */
.about{background:var(--bg2)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-text h2{font-size:30px;font-weight:800;margin-bottom:10px;line-height:1.35}
.about-text .lead{font-size:16px;color:var(--ink2);line-height:1.55;margin-bottom:10px; text-indent: 2em;}
.about-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:10px}
.stat-box{padding:18px 12px;background:#fff;border-radius:14px;box-shadow:var(--shadow);text-align:center;border:1px solid rgba(0,0,0,.04)}
.stat-box .num{font-size:24px;font-weight:800;background:linear-gradient(135deg,var(--blue),#36C5F0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2;white-space:nowrap;display:inline-block}
.stat-box .num-suffix{font-size:24px;font-weight:800;font-style:normal;background:linear-gradient(135deg,var(--blue),#36C5F0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-left:1px}
.stat-box .label{font-size:12px;color:var(--ink2);margin-top:4px;white-space:nowrap}
.about-visual{position:relative;width:100%;border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.about-swiper{position:relative;width:100%;aspect-ratio:16/9;border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.about-track{display:flex;width:max-content;height:100%;align-items:stretch;transition:transform .5s ease}
.about-track.no-anim{transition:none}
.about-slide{flex:0 0 auto;height:100%;position:relative;display:flex;flex-direction:column;justify-content:flex-end;padding:24px;color:#fff}
.about-slide::before{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.7),transparent 55%)}
.about-slide .as-content{position:relative;z-index:2}
.about-slide .as-tag{display:inline-block;padding:4px 12px;background:rgba(22,93,255,.85);border-radius:20px;font-size:12px;margin-bottom:8px}
.about-slide h4{font-size:16px;font-weight:700}
.about-dots{display:flex;justify-content:center;gap:8px;margin-top:14px}
.about-dot{width:10px;height:10px;border-radius:50%;background:rgba(30,41,59,.28);border:0;padding:0;cursor:pointer;transition:all .3s}
.about-dot:hover{background:rgba(30,41,59,.55)}
.about-dot.active{width:26px;border-radius:10px;background:var(--blue)}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== 我能做什么 ===== */
.services-wrap{display:grid;grid-template-columns:260px 1fr;gap:40px;align-items:start}
.srv-menu{display:flex;flex-direction:column;gap:6px}
.srv-menu-item{padding:18px 22px;border-radius:12px;cursor:pointer;font-size:15px;font-weight:600;color:var(--ink2);transition:all .3s;display:flex;align-items:center;gap:14px;background:var(--bg2);border:1px solid transparent}
.srv-menu-item i{font-size:18px;width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;background:rgba(22,93,255,.08);color:var(--blue)}
.srv-menu-item:hover{background:var(--blue-l)}
.srv-menu-item.active{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 8px 24px rgba(22,93,255,.3)}
.srv-menu-item.active i{background:rgba(255,255,255,.2);color:#fff}
.srv-panel{display:none}
.srv-panel.active{display:block;animation:fadeUp .45s ease}
.srv-panel-head{margin-bottom:32px}
.srv-panel-head h3{font-size:22px;font-weight:800;margin-bottom:8px}
.srv-panel-head p{font-size:15px;color:var(--ink2);line-height:1.8}
.srv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.srv-card{padding:28px 24px;border-radius:14px;background:#fff;border:1px solid var(--line);transition:all .35s;position:relative;overflow:hidden}
.srv-card::after{content:'';position:absolute;bottom:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--blue),#36C5F0);transform:scaleX(0);transition:transform .35s;transform-origin:left}
.srv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);border-color:rgba(22,93,255,.15)}
.srv-card:hover::after{transform:scaleX(1)}
.srv-card .srv-icon{width:52px;height:52px;border-radius:12px;background:linear-gradient(135deg,var(--blue-l),#fff);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--blue);margin-bottom:20px}
.srv-card h4{font-size:16px;font-weight:700;margin-bottom:10px}
.srv-card p{font-size:13.5px;color:var(--ink2);line-height:1.75}

/* ===== 精品案例 ===== */
.cases{background:var(--bg2)}
.case-tabs{display:inline-flex;gap:4px;background:#fff;border-radius:12px;padding:4px;margin-bottom:36px;box-shadow:var(--shadow)}
.case-tab{padding:12px 28px;border-radius:8px;cursor:pointer;font-size:14px;font-weight:600;color:var(--ink2);transition:all .3s;border:none;background:transparent}
.case-tab.active{background:var(--blue);color:#fff;box-shadow:0 4px 12px rgba(22,93,255,.3)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-item{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:16/9;cursor:pointer;box-shadow:var(--shadow)}
.case-item .case-bg{position:absolute;inset:0;transition:all .5s}
.case-item:nth-child(1) .case-bg{background:linear-gradient(135deg,#1a2a5e,#165DFF)}
.case-item:nth-child(2) .case-bg{background:linear-gradient(135deg,#0d3b2e,#0ea47a)}
.case-item:nth-child(3) .case-bg{background:linear-gradient(135deg,#3a1a5e,#7B5CFF)}
.case-item:nth-child(4) .case-bg{background:linear-gradient(135deg,#5e1a1a,#FF4D4F)}
.case-item:nth-child(5) .case-bg{background:linear-gradient(135deg,#1a4a5e,#36C5F0)}
.case-item:nth-child(6) .case-bg{background:linear-gradient(135deg,#4a3a1a,#F5A623)}
.case-item .case-content{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;z-index:2;padding:24px;text-align:center}
.case-item .case-icon{font-size:40px;margin-bottom:16px;opacity:.9}
.case-item .case-title{font-size:18px;font-weight:700;margin-bottom:6px}
.case-item .case-cat{font-size:13px;opacity:.75}
.case-overlay{position:absolute;inset:0;background:rgba(10,14,39,.88);z-index:3;display:flex;flex-direction:column;justify-content:center;padding:28px;color:#fff;opacity:0;transition:all .4s;transform:translateY(20px)}
.case-item:hover .case-overlay{opacity:1;transform:translateY(0)}
.case-item:hover .case-bg{transform:scale(1.08)}
.case-overlay h4{font-size:16px;font-weight:700;margin-bottom:8px;color:#93C5FD}
.case-overlay p{font-size:13px;line-height:1.7;opacity:.85}
.case-overlay .case-tag{display:inline-block;padding:4px 12px;background:rgba(22,93,255,.3);border-radius:20px;font-size:12px;margin-top:12px}

/* ===== 五大优势 ===== */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.adv-card{padding:36px 28px;border-radius:16px;background:#fff;border:1px solid var(--line);transition:all .35s;position:relative;overflow:hidden}
.adv-card::before{content:'';position:absolute;top:-40px;right:-40px;width:120px;height:120px;border-radius:50%;background:var(--blue-l);opacity:0;transition:all .35s}
.adv-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-h);border-color:rgba(22,93,255,.15)}
.adv-card:hover::before{opacity:1}
.adv-num{font-size:14px;font-weight:700;color:var(--blue);margin-bottom:12px;position:relative}
.adv-card .adv-icon{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,var(--blue),#36C5F0);display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;margin-bottom:20px;position:relative;box-shadow:0 8px 20px rgba(22,93,255,.25)}
.adv-card h4{font-size:17px;font-weight:700;margin-bottom:10px;position:relative}
.adv-card p{font-size:14px;color:var(--ink2);line-height:1.8;position:relative}

/* ===== 客户矩阵 ===== */
.clients{background:var(--bg2)}
.client-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;flex-wrap:wrap;gap:16px}
.client-pager{display:flex;gap:8px;align-items:center}
.client-pager button{width:40px;height:40px;border-radius:8px;border:1px solid var(--line);background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--ink2);transition:all .25s}
.client-pager button:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
.client-pager .page-info{font-size:14px;color:var(--ink2);padding:0 12px}
.client-matrix{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;transition:all .4s}
.client-cell{aspect-ratio:1.6/1;background:#fff;border-radius:10px;border:1px solid var(--line);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;transition:all .3s;cursor:default;padding:12px}
.client-cell:hover{transform:scale(1.06);box-shadow:var(--shadow-h);border-color:rgba(22,93,255,.25);z-index:2}
.client-cell .cli-icon{font-size:22px;color:var(--blue);opacity:.8}
.client-cell .cli-name{font-size:11px;color:var(--ink2);text-align:center;line-height:1.3;font-weight:500}
.client-cell.alt .cli-icon{color:#7B5CFF}
.client-cell.alt2 .cli-icon{color:#0ea47a}
.client-cell.alt3 .cli-icon{color:#F5A623}

/* ===== 新闻+FAQ ===== */
.nf-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
/* 新闻 */
.news-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.news-head h3{font-size:20px;font-weight:800;display:flex;align-items:center;gap:10px}
.news-head h3 i{color:var(--blue)}
.news-swiper{position:relative;border-radius:14px;overflow:hidden;margin-bottom:20px;aspect-ratio:16/9;box-shadow:var(--shadow)}
.news-slide{position:absolute;inset:0;display:none;flex-direction:column;justify-content:flex-end;padding:28px;color:#fff}
.news-slide.active{display:flex;animation:fadeUp .5s ease}
.news-slide::before{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.75),transparent 60%)}
.news-slide .ns-content{position:relative;z-index:2}
.news-slide .ns-tag{display:inline-block;padding:4px 12px;background:rgba(22,93,255,.85);border-radius:20px;font-size:12px;margin-bottom:10px}
.news-slide h4{font-size:17px;font-weight:700;margin-bottom:6px}
.news-slide .ns-date{font-size:12px;opacity:.7}
.news-dots{display:flex;gap:6px;justify-content:center;margin-bottom:20px}
.news-dots .dot{width:8px;width:8px;height:8px;border-radius:50%;background:var(--line);cursor:pointer;transition:all .25s;border:none;padding:0}
.news-dots .dot.active{background:var(--blue);width:24px;border-radius:4px}
.news-list{max-height:340px;overflow-y:auto;padding-right:8px}
.news-list::-webkit-scrollbar{width:4px}
.news-list::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
.news-row{padding:14px 16px;border-radius:10px;margin-bottom:8px;transition:all .25s;cursor:pointer;border:1px solid transparent}
.news-row:hover{background:var(--blue-l);border-color:rgba(22,93,255,.1);padding-left:20px}
.news-row .nr-title{font-size:14px;font-weight:500;color:var(--ink);margin-bottom:4px;line-height:1.5}
.news-row .nr-meta{font-size:12px;color:var(--ink3);display:flex;gap:12px}
/* FAQ */
.faq-head{margin-bottom:24px}
.faq-head h3{font-size:20px;font-weight:800;display:flex;align-items:center;gap:10px}
.faq-head h3 i{color:var(--blue)}
.faq-list{display:flex;flex-direction:column;gap:12px;max-height:480px;overflow-y:auto;padding-right:8px}
.faq-list::-webkit-scrollbar{width:4px}
.faq-list::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
.faq-item{border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:all .3s;background:#fff}
.faq-item.open{border-color:rgba(22,93,255,.2);box-shadow:0 4px 16px rgba(22,93,255,.08)}
.faq-q{padding:18px 20px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:14.5px;font-weight:600;color:var(--ink);user-select:none}
.faq-q .faq-toggle{width:28px;height:28px;border-radius:50%;background:var(--bg2);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--blue);transition:all .3s;flex-shrink:0}
.faq-item.open .faq-toggle{background:var(--blue);color:#fff;transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:all .4s ease;padding:0 20px}
.faq-item.open .faq-a{max-height:300px;padding:0 20px 18px}

/* ===== 签约新闻库 ===== */
.news-lib{background:var(--bg2)}
.nl-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;flex-wrap:wrap;gap:16px}
.nl-head h2{font-size:28px;font-weight:800}
.nl-filters{display:flex;gap:8px;flex-wrap:wrap}
.nl-filter{padding:8px 18px;border-radius:8px;font-size:13px;font-weight:500;color:var(--ink2);background:#fff;border:1px solid var(--line);cursor:pointer;transition:all .25s}
.nl-filter.active,.nl-filter:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
.nl-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.nl-card{display:flex;gap:20px;padding:20px;background:#fff;border-radius:14px;box-shadow:var(--shadow);transition:all .3s;border:1px solid rgba(0,0,0,.03)}
.nl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h)}
.nl-thumb{flex:0 0 140px;height:105px;border-radius:10px;display:flex;background-size: auto 100%; align-items:center;justify-content:center;font-size:32px;color:#fff;position:relative;overflow:hidden}
.nl-thumb::after{content:'';position:absolute;inset:0;background:rgba(0,0,0,.15)}
.nl-body{flex:1;min-width:0}
.nl-body h4{font-size:14.5px;font-weight:700;margin-bottom:6px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nl-body p{font-size:13px;color:var(--ink2);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.nl-meta{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.nl-tag{font-size:11px;padding:3px 10px;background:var(--blue-l);color:var(--blue);border-radius:4px;font-weight:500}
.nl-date{font-size:12px;color:var(--ink3)}
.nl-views{font-size:12px;color:var(--ink3);margin-left:auto;display:flex;align-items:center;gap:4px}

/* ===== 底部表单 ===== */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.contact-info h2{font-size:30px;font-weight:800;margin-bottom:16px;line-height:1.35}
.contact-info p{font-size:16px;color:var(--ink2);line-height:1.8;margin-bottom:32px}
.contact-feats{display:flex;flex-direction:column;gap:16px;margin-bottom:32px}
.contact-feat{display:flex;align-items:center;gap:14px}
.contact-feat i{width:40px;height:40px;border-radius:10px;background:var(--blue-l);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:16px}
.contact-feat span{font-size:15px;color:var(--ink)}
.contact-tel{display:flex;align-items:center;gap:14px;padding:20px 24px;background:linear-gradient(135deg,var(--blue),#36C5F0);border-radius:14px;color:#fff}
.contact-tel i{font-size:28px}
.contact-tel .ct-text{font-size:13px;opacity:.85;line-height:1.4}
.contact-tel .ct-num{font-size:22px;font-weight:800}
.form-box{background:#fff;border-radius:20px;padding:40px;box-shadow:0 20px 60px rgba(0,0,0,.08);border:1px solid rgba(0,0,0,.04)}
.form-box h3{font-size:22px;font-weight:800;margin-bottom:8px}
.form-box .fb-sub{font-size:14px;color:var(--ink2);margin-bottom:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--ink2);margin-bottom:6px}
.form-control{width:100%;padding:13px 16px;border:1.5px solid var(--line);border-radius:10px;font-size:14px;color:var(--ink);transition:all .25s;background:#fff;font-family:inherit}
.form-control:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(22,93,255,.08)}
textarea.form-control{min-height:100px;resize:vertical}
.form-submit{width:100%;justify-content:center;padding:15px;font-size:16px;border-radius:10px;margin-top:8px}

/* ===== Footer ===== */
.footer{background:#0A0E27;color:rgba(255,255,255,.7);padding:60px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:40px}
.footer-brand .nav-logo{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;opacity:.6;max-width:340px}
.footer-col h5{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.55);padding:6px 0;transition:color .25s}
.footer-col a:hover{color:var(--blue)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.footer-bottom p{font-size:13px;opacity:.4}
.footer-links{display:flex;gap:24px}
.footer-links a{font-size:13px;color:rgba(255,255,255,.45)}
.footer-links a:hover{color:#fff}

/* ===== 浮动按钮 ===== */
.float-btn{position:fixed;bottom:32px;right:32px;z-index:998;width:56px;height:56px;border-radius:50%;background:var(--blue);color:#fff;border:none;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 30px rgba(22,93,255,.35);transition:all .3s}
.float-btn:hover{transform:scale(1.1);background:var(--blue-d)}
.float-btn .pulse{position:absolute;inset:0;border-radius:50%;background:var(--blue);animation:pulse 2s ease infinite;z-index:-1}
@keyframes pulse{0%{transform:scale(1);opacity:.5}100%{transform:scale(1.6);opacity:0}}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .why-wrap,.services-wrap{grid-template-columns:220px 1fr;gap:28px}
  .client-matrix{grid-template-columns:repeat(4,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nl-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  section{padding:56px 0}
  .nav-links{display:none}
  .why-wrap,.services-wrap{grid-template-columns:1fr}
  .why-menu,.srv-menu{flex-direction:row;overflow-x:auto;position:static;padding:8px;gap:6px}
  .why-menu-item,.srv-menu-item{flex:0 0 auto;white-space:nowrap;padding:12px 16px;font-size:13px}
  .why-cards,.srv-grid{grid-template-columns:1fr}
  .about-grid,.contact-wrap{grid-template-columns:1fr;gap:40px}
  .case-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .adv-grid{grid-template-columns:1fr;gap:16px}
  .client-matrix{grid-template-columns:repeat(3,1fr)}
  .nf-grid{grid-template-columns:1fr;gap:32px}
  .form-row{grid-template-columns:1fr}
  .banner h1{font-size:32px}
  .banner-cta{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr}
  .nl-card{flex-direction:column}
  .nl-thumb{flex:0 0 120px;width:100%}
}
@media(max-width:480px){
  .case-grid{grid-template-columns:1fr}
  .client-matrix{grid-template-columns:repeat(2,1fr)}
  .form-box{padding:24px}
  .banner-tags span{font-size:12px;padding:6px 12px}
}