*{margin:0;padding:0;box-sizing:border-box}
:root{
--bg:#070b18;--bg2:#0c1226;--card:rgba(20,28,52,.72);
--neon1:#4f7cff;--neon2:#00e5ff;--neon3:#b45cff;--neon4:#22ffb0;
--txt:#e8eeff;--sub:#97a4c6;--line:rgba(120,150,255,.18);
--grad:linear-gradient(120deg,#4f7cff,#00e5ff 45%,#b45cff);
}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--txt);line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;height:auto}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
section{position:relative;padding:88px 0}
.sec-head{text-align:center;max-width:780px;margin:0 auto 52px}
.sec-tag{display:inline-block;font-size:13px;letter-spacing:3px;color:var(--neon2);border:1px solid rgba(0,229,255,.35);padding:4px 16px;border-radius:20px;margin-bottom:18px;background:rgba(0,229,255,.06)}
h2{font-size:clamp(24px,3.2vw,38px);line-height:1.3;font-weight:800;letter-spacing:1px}
h2 .glow{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-desc{color:var(--sub);margin-top:16px;font-size:15.5px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:transform .25s,box-shadow .3s,filter .3s;white-space:nowrap}
.btn-primary{background:var(--grad);color:#04101f;box-shadow:0 0 22px rgba(0,229,255,.45),0 0 40px rgba(180,92,255,.25)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 32px rgba(0,229,255,.7),0 0 60px rgba(180,92,255,.4)}
.btn-ghost{background:transparent;color:var(--txt);border:1px solid var(--line);backdrop-filter:blur(6px)}
.btn-ghost:hover{border-color:var(--neon2);color:var(--neon2);transform:translateY(-3px)}
.btn:active{transform:scale(.97)}
/* 导航 */
header.nav{position:fixed;top:0;left:0;right:0;z-index:900;background:rgba(7,11,24,.7);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);transition:background .3s}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:1px;flex-shrink:0}
.brand .ai-page-logo{height:34px;width:auto;max-width:100%;filter:drop-shadow(0 0 8px rgba(0,229,255,.4))}
.brand span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:0;list-style:none}
.nav-links li a{display:block;padding:8px 12px;font-size:14px;color:var(--sub);border-radius:8px;transition:color .25s,background .25s}
.nav-links li a:hover{color:var(--neon2);background:rgba(0,229,255,.08)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-cta .btn{padding:9px 20px;font-size:13.5px}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--txt);font-size:20px;cursor:pointer}
/* Hero */
.hero{padding:150px 0 90px;overflow:hidden;background:
radial-gradient(900px 420px at 15% 0%,rgba(79,124,255,.22),transparent 60%),
radial-gradient(800px 420px at 85% 10%,rgba(180,92,255,.18),transparent 60%),
radial-gradient(700px 500px at 50% 100%,rgba(0,229,255,.12),transparent 65%)}
.hero::before{content:"";position:absolute;inset:0;background:
linear-gradient(rgba(120,150,255,.05) 1px,transparent 1px),
linear-gradient(90deg,rgba(120,150,255,.05) 1px,transparent 1px);
background-size:60px 60px;mask-image:radial-gradient(circle at 50% 30%,#000 30%,transparent 80%);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--neon2);border:1px solid rgba(0,229,255,.3);padding:6px 16px;border-radius:999px;background:rgba(0,229,255,.06);margin-bottom:22px}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:var(--neon4);box-shadow:0 0 10px var(--neon4);display:inline-block;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.22;font-weight:900;letter-spacing:1px}
h1 .glow{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 18px rgba(0,229,255,.25))}
.hero-p{color:var(--sub);font-size:16.5px;margin:22px 0 32px;max-width:600px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-btns .btn{padding:15px 36px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:44px;max-width:520px}
.hero-stat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;text-align:center;backdrop-filter:blur(8px)}
.hero-stat b{display:block;font-size:24px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:900}
.hero-stat small{color:var(--sub);font-size:12.5px}
.hero-visual{position:relative;height:430px}
.orb{position:absolute;border-radius:50%;filter:blur(2px);opacity:.85}
.orb1{width:230px;height:230px;background:radial-gradient(circle at 35% 30%,#00e5ff,#4f7cff 55%,transparent 72%);top:20px;left:40px;box-shadow:0 0 90px rgba(0,229,255,.45);animation:float 7s ease-in-out infinite}
.orb2{width:150px;height:150px;background:radial-gradient(circle at 40% 35%,#b45cff,#4f7cff 60%,transparent 75%);bottom:40px;right:50px;box-shadow:0 0 70px rgba(180,92,255,.45);animation:float 9s ease-in-out infinite reverse}
.orb3{width:80px;height:80px;background:radial-gradient(circle at 40% 35%,#22ffb0,transparent 75%);bottom:150px;left:120px;box-shadow:0 0 50px rgba(34,255,176,.5);animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-22px)}}
.ring{position:absolute;inset:30px;border:1px dashed rgba(0,229,255,.25);border-radius:50%;animation:spin 26s linear infinite}
.ring2{position:absolute;inset:80px;border:1px dashed rgba(180,92,255,.25);border-radius:50%;animation:spin 18s linear infinite reverse}
@keyframes spin{to{transform:rotate(360deg)}}
.grid-card{position:absolute;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 18px;backdrop-filter:blur(10px);font-size:13.5px;box-shadow:0 12px 30px rgba(0,0,0,.35)}
.gc1{top:0;right:0;animation:float 8s ease-in-out infinite}
.gc2{bottom:0;left:0;animation:float 10s ease-in-out infinite reverse}
.gc3{top:48%;right:8%;animation:float 9s ease-in-out infinite}
.grid-card b{display:block;font-size:16px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.grid-card small{color:var(--sub)}
/* 指标条 */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric{background:linear-gradient(160deg,rgba(28,38,70,.85),rgba(14,20,40,.7));border:1px solid var(--line);border-radius:18px;padding:30px 24px;text-align:center;transition:transform .3s,box-shadow .3s,border-color .3s;position:relative;overflow:hidden}
.metric::after{content:"";position:absolute;inset:0;background:radial-gradient(220px 90px at 50% 0%,rgba(0,229,255,.16),transparent 70%);pointer-events:none}
.metric:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.5);box-shadow:0 16px 40px rgba(0,229,255,.14)}
.metric b{font-size:38px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{display:block;color:var(--sub);font-size:14px;margin-top:6px}
/* 关于 */
.about-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.about-p{color:var(--sub);margin-top:18px;font-size:15.5px}
.about-list{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.about-item{display:flex;gap:12px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;transition:transform .3s,border-color .3s}
.about-item:hover{transform:translateY(-4px);border-color:rgba(0,229,255,.4)}
.about-item .ico{width:34px;height:34px;flex-shrink:0;border-radius:10px;background:rgba(0,229,255,.1);display:flex;align-items:center;justify-content:center;color:var(--neon2);font-size:16px}
.about-item b{font-size:14.5px;display:block}
.about-item small{color:var(--sub);font-size:12.8px;line-height:1.5;display:block}
.meadow{position:relative}
.ai-page-image{border-radius:20px;border:1px solid var(--line);box-shadow:0 24px 60px rgba(0,0,0,.5)}
/* 服务能力 */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px 26px;position:relative;overflow:hidden;transition:transform .35s,box-shadow .35s,border-color .35s;backdrop-filter:blur(8px)}
.card::before{content:"";position:absolute;top:-40%;right:-30%;width:60%;height:120%;background:radial-gradient(circle,rgba(0,229,255,.12),transparent 70%);opacity:0;transition:opacity .4s}
.card:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.45);box-shadow:0 20px 50px rgba(0,229,255,.12)}
.card:hover::before{opacity:1}
.card .c-ico{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,rgba(79,124,255,.3),rgba(180,92,255,.25));display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px;color:var(--neon2);border:1px solid var(--line)}
.card h3{font-size:18px;margin-bottom:10px}
.card p{color:var(--sub);font-size:14px}
/* 一站式制作 */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scene{background:linear-gradient(160deg,rgba(24,32,60,.9),rgba(12,18,38,.7));border:1px solid var(--line);border-radius:14px;padding:20px 22px;transition:transform .3s,border-color .3s,box-shadow .3s;display:flex;gap:14px;align-items:flex-start}
.scene:hover{transform:translateY(-5px);border-color:rgba(180,92,255,.5);box-shadow:0 14px 34px rgba(180,92,255,.14)}
.scene .dot{width:10px;height:10px;border-radius:50%;background:var(--grad);margin-top:7px;flex-shrink:0;box-shadow:0 0 10px var(--neon2)}
.scene b{font-size:15px;display:block;margin-bottom:4px}
.scene small{color:var(--sub);font-size:13px;line-height:1.6;display:block}
/* 模型标签云 */
.tagcloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:10px}
.tagcloud span{padding:8px 18px;border-radius:999px;background:rgba(20,28,52,.8);border:1px solid var(--line);font-size:13.5px;color:var(--sub);transition:all .3s;cursor:default}
.tagcloud span:hover{color:var(--neon2);border-color:var(--neon2);box-shadow:0 0 18px rgba(0,229,255,.3);transform:translateY(-3px)}
/* 流程时间线 */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:20px}
.timeline::before{content:"";position:absolute;top:34px;left:8%;right:8%;height:2px;background:linear-gradient(90deg,transparent,var(--neon1),var(--neon2),var(--neon3),transparent)}
.step{position:relative;text-align:center;z-index:1}
.step .num{width:68px;height:68px;margin:0 auto 18px;border-radius:50%;background:var(--bg2);border:2px solid rgba(0,229,255,.4);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;color:var(--neon2);box-shadow:0 0 24px rgba(0,229,255,.25);transition:transform .3s,box-shadow .3s}
.step:hover .num{transform:scale(1.08);box-shadow:0 0 36px rgba(0,229,255,.55)}
.step b{display:block;font-size:15.5px;margin-bottom:6px}
.step small{color:var(--sub);font-size:13px}
/* 对比表 */
.table-wrap{overflow-x:auto;border-radius:18px;border:1px solid var(--line);background:rgba(12,18,38,.6)}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
th{background:rgba(79,124,255,.12);color:var(--txt);font-weight:700;white-space:nowrap}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(0,229,255,.04)}
td.hl{color:var(--neon4);font-weight:600}
.rate-box{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.rate{background:linear-gradient(160deg,rgba(28,38,70,.9),rgba(14,20,40,.75));border:1px solid var(--line);border-radius:18px;padding:32px;text-align:center;transition:transform .3s,box-shadow .3s}
.rate:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(0,229,255,.16)}
.rate b{font-size:42px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:block}
.rate span{color:var(--sub);font-size:14px}
.stars{color:#ffd166;font-size:20px;letter-spacing:3px;margin-top:8px;display:block}
/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .35s,box-shadow .35s,border-color .35s}
.case:hover{transform:translateY(-8px);border-color:rgba(0,229,255,.45);box-shadow:0 22px 50px rgba(0,229,255,.13)}
.case-img{position:relative;overflow:hidden;aspect-ratio:16/10;background:linear-gradient(135deg,#101a34,#0a1226)}
.case-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case:hover .case-img img{transform:scale(1.06)}
.case-body{padding:22px}
.case-body h3{font-size:17px;margin-bottom:8px}
.case-body p{color:var(--sub);font-size:13.8px}
.case-tag{display:inline-block;margin-top:14px;font-size:12px;color:var(--neon2);border:1px solid rgba(0,229,255,.35);padding:3px 12px;border-radius:20px}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:22px}
.mini{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .35s,border-color .35s}
.mini:hover{transform:translateY(-6px);border-color:rgba(180,92,255,.45)}
.mini img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mini .m-body{padding:18px 20px}
.mini .m-body b{font-size:15.5px}
.mini .m-body small{display:block;color:var(--sub);font-size:13px;margin-top:6px}
/* 评论 */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;transition:transform .3s,box-shadow .3s,border-color .3s;position:relative}
.review:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.4);box-shadow:0 18px 40px rgba(0,229,255,.12)}
.review .quote{font-size:32px;line-height:1;color:var(--neon2);opacity:.5}
.review .stars{font-size:15px;margin:6px 0 12px}
.review p{color:var(--sub);font-size:14px;min-height:88px}
.review-user{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--neon1),var(--neon3));display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;color:#fff;flex-shrink:0}
.review-user b{font-size:14px;display:block}
.review-user small{color:var(--sub);font-size:12.5px}
/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.price{background:linear-gradient(170deg,rgba(26,34,64,.92),rgba(12,18,38,.8));border:1px solid var(--line);border-radius:20px;padding:34px 28px;position:relative;transition:transform .35s,box-shadow .35s,border-color .35s}
.price.hot{border-color:rgba(0,229,255,.5);box-shadow:0 0 40px rgba(0,229,255,.16)}
.price:hover{transform:translateY(-8px);box-shadow:0 22px 50px rgba(0,229,255,.16)}
.price .p-tag{position:absolute;top:-13px;right:24px;background:var(--grad);color:#04101f;font-size:12px;font-weight:700;padding:3px 14px;border-radius:20px}
.price h3{font-size:19px;margin-bottom:8px}
.price .p-desc{color:var(--sub);font-size:13.5px;min-height:40px}
.price .p-num{font-size:34px;font-weight:900;margin:16px 0 4px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.price .p-num small{font-size:14px;color:var(--sub);font-weight:400;-webkit-text-fill-color:var(--sub)}
.price ul{list-style:none;margin:20px 0 26px;display:grid;gap:11px}
.price ul li{font-size:14px;color:var(--sub);display:flex;gap:10px;align-items:flex-start}
.price ul li::before{content:"✦";color:var(--neon2);flex-shrink:0}
.price .btn{width:100%}
/* 服务网络 */
.network{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:8px}
.network span{padding:10px 24px;border-radius:12px;background:rgba(20,28,52,.8);border:1px solid var(--line);font-size:14px;color:var(--sub);transition:all .3s}
.network span:hover{color:var(--neon2);border-color:var(--neon2);transform:translateY(-3px)}
/* 文章 & 百科 */
.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.article{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;transition:transform .3s,border-color .3s,box-shadow .3s;display:flex;flex-direction:column;gap:10px}
.article:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.4);box-shadow:0 16px 38px rgba(0,229,255,.1)}
.article .date{font-size:12.5px;color:var(--neon2);letter-spacing:1px}
.article h3{font-size:16px;line-height:1.5}
.article p{color:var(--sub);font-size:13.5px;flex:1}
.article .more{font-size:13.5px;color:var(--neon4)}
/* 表单 */
.form-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.form-card{background:linear-gradient(170deg,rgba(26,34,64,.92),rgba(12,18,38,.85));border:1px solid var(--line);border-radius:22px;padding:40px}
.form-card h3{font-size:22px;margin-bottom:8px}
.form-card .f-desc{color:var(--sub);font-size:14px;margin-bottom:26px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;margin-bottom:8px;color:var(--sub)}
.field input,.field select,.field textarea{width:100%;padding:13px 16px;border-radius:12px;background:rgba(7,11,24,.7);border:1px solid var(--line);color:var(--txt);font-size:14.5px;font-family:inherit;transition:border-color .25s,box-shadow .25s;outline:none}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--neon2);box-shadow:0 0 0 3px rgba(0,229,255,.12)}
.field textarea{resize:vertical;min-height:110px}
.field select option{background:#0c1226;color:var(--txt)}
.contact-info{display:grid;gap:18px}
.ci-item{display:flex;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;align-items:center;transition:border-color .3s,transform .3s}
.ci-item:hover{border-color:rgba(0,229,255,.4);transform:translateY(-3px)}
.ci-item .ci-ico{width:46px;height:46px;border-radius:12px;background:rgba(0,229,255,.1);display:flex;align-items:center;justify-content:center;color:var(--neon2);font-size:20px;flex-shrink:0}
.ci-item b{display:block;font-size:14.5px}
.ci-item span{color:var(--sub);font-size:13.5px;word-break:break-all}
.qrcode{width:130px;border-radius:12px;border:1px solid var(--line)}
/* FAQ */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .3s}
.faq.open{border-color:rgba(0,229,255,.45)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;background:none;border:none;color:var(--txt);font-size:15.5px;font-weight:600;cursor:pointer;text-align:left;font-family:inherit}
.faq-q .plus{font-size:22px;color:var(--neon2);transition:transform .3s;flex-shrink:0;line-height:1}
.faq.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a p{padding:0 24px 22px;color:var(--sub);font-size:14.5px}
/* 加盟 */
.join{background:linear-gradient(120deg,rgba(79,124,255,.14),rgba(180,92,255,.12));border:1px solid var(--line);border-radius:24px;padding:52px;display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.join h2{font-size:clamp(22px,2.8vw,32px)}
.join p{color:var(--sub);margin-top:16px;font-size:15px}
.join ul{list-style:none;display:grid;gap:12px;margin:20px 0 0}
.join ul li{display:flex;gap:10px;font-size:14.5px;color:var(--sub)}
.join ul li::before{content:"✓";color:var(--neon4);font-weight:800}
/* 页脚 */
footer{background:#050810;border-top:1px solid var(--line);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.foot-brand p{color:var(--sub);font-size:13.8px;margin-top:16px;max-width:300px}
.foot h4{font-size:15px;margin-bottom:18px;color:var(--txt)}
.foot ul{list-style:none;display:grid;gap:10px}
.foot ul li a,.foot ul li{color:var(--sub);font-size:13.8px;transition:color .25s}
.foot ul li a:hover{color:var(--neon2)}
.foot-links{display:flex;flex-wrap:wrap;gap:10px 18px}
.foot-bottom{border-top:1px solid var(--line);margin-top:48px;padding:24px 0;text-align:center;color:var(--sub);font-size:13px}
/* 浮动 */
.float-bar{position:fixed;right:22px;bottom:26px;z-index:950;display:flex;flex-direction:column;gap:12px}
.float-btn{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--neon1),var(--neon3));display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;box-shadow:0 8px 24px rgba(79,124,255,.45);cursor:pointer;border:none;transition:transform .3s,box-shadow .3s;position:relative}
.float-btn:hover{transform:scale(1.1);box-shadow:0 0 28px rgba(0,229,255,.5)}
.float-btn.top{background:rgba(20,28,52,.9);border:1px solid var(--line);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s}
.float-btn.top.show{opacity:1;pointer-events:auto}
.kefu-pop{position:fixed;right:88px;bottom:26px;z-index:960;background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:16px;width:200px;text-align:center;display:none;box-shadow:0 18px 44px rgba(0,0,0,.6)}
.kefu-pop.show{display:block}
.kefu-pop img{width:160px;margin:0 auto 10px;border-radius:10px}
.kefu-pop small{color:var(--sub);font-size:12.5px;display:block}
/* 动画 */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
/* 响应 */
@media(max-width:1024px){
.hero-inner{grid-template-columns:1fr}
.hero-visual{display:none}
.about-wrap{grid-template-columns:1fr}
.cards,.scene-grid,.case-grid,.reviews,.articles,.price-grid{grid-template-columns:repeat(2,1fr)}
.metrics{grid-template-columns:repeat(2,1fr)}
.timeline{grid-template-columns:repeat(3,1fr)}
.timeline::before{display:none}
.form-wrap,.join{grid-template-columns:1fr}
.rate-box{grid-template-columns:1fr}
.foot-grid{grid-template-columns:repeat(2,1fr)}
.nav-links{position:fixed;top:68px;left:0;right:0;background:rgba(7,11,24,.98);flex-direction:column;align-items:stretch;padding:12px 20px 24px;border-bottom:1px solid var(--line);transform:translateY(-120%);transition:transform .35s;max-height:calc(100vh - 68px);overflow-y:auto}
.nav-links.open{transform:translateY(0)}
.nav-links li a{padding:12px 8px;font-size:15px}
.menu-toggle{display:block}
}
@media(max-width:640px){
.container{padding:0 18px}
section{padding:60px 0}
.hero{padding:120px 0 60px}
.cards,.scene-grid,.case-grid,.reviews,.articles,.price-grid,.metrics,.mini-grid,.about-list{grid-template-columns:1fr}
.hero-stats{grid-template-columns:1fr 1fr}
.timeline{grid-template-columns:1fr 1fr}
.foot-grid{grid-template-columns:1fr}
.form-card{padding:26px}
.join{padding:32px 24px}
.hero-btns .btn{flex:1;padding:14px 20px}
}