/* Tech Template — Electric Indigo 黑科技 */
:root{--ind:#6366F1;--ind-dim:#4F46E5;--ind-glow:rgba(99,102,241,0.2);--ind-light:#818CF8;--bg:#08080C;--bg2:#0E0E14;--bg-card:rgba(99,102,241,0.03);--bg-card-h:rgba(99,102,241,0.07);--text:#F8F8FC;--text-sec:#9CA3AF;--text-muted:#6B7280;--border:rgba(99,102,241,0.1);--border-h:rgba(99,102,241,0.28);--radius:10px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
.dot-bg{position:fixed;inset:0;z-index:0;pointer-events:none;background-image:radial-gradient(rgba(99,102,241,0.08) 1px,transparent 1px);background-size:24px 24px}

/* Navbar */
.navbar{position:fixed;top:14px;left:14px;right:14px;z-index:1000;display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:rgba(8,8,12,0.9);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--radius);transition:all .3s}
.navbar.scrolled{background:rgba(8,8,12,0.97);box-shadow:0 4px 20px rgba(99,102,241,0.06)}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.1rem}
.logo-glow{width:10px;height:10px;background:var(--ind);border-radius:50%;box-shadow:0 0 10px var(--ind-glow),0 0 20px rgba(99,102,241,0.1);flex-shrink:0}
.nav-links{display:flex;list-style:none;gap:28px}
.nav-links a{font-size:.88rem;color:var(--text-sec);transition:color .2s}
.nav-links a:hover{color:var(--ind-light)}
.nav-cta{display:inline-flex;align-items:center;gap:6px;padding:9px 20px;background:var(--ind);color:#fff;border-radius:6px;font-size:.84rem;font-weight:600;transition:all .2s;cursor:pointer}
.nav-cta:hover{background:var(--ind-dim);box-shadow:0 4px 16px var(--ind-glow)}
.mobile-btn{display:none;background:none;border:none;color:var(--ind-light);cursor:pointer;padding:4px}

/* Hero */
.hero{min-height:100vh;display:flex;align-items:center;padding:120px 0 60px;position:relative;z-index:1}
.hero-split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-tag{display:inline-block;font-size:.78rem;color:var(--ind-light);font-weight:600;margin-bottom:18px;letter-spacing:1px}
.hero h1{font-size:2.6rem;font-weight:800;line-height:1.15;margin-bottom:16px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}
.hero-p{font-size:.95rem;color:var(--text-sec);margin-bottom:28px;line-height:1.8;overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}
.hero-btns{display:flex;gap:12px;margin-bottom:24px}
.btn-main{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;background:var(--ind);color:#fff;border-radius:6px;font-weight:700;font-size:.88rem;transition:all .2s;cursor:pointer}
.btn-main:hover{background:var(--ind-dim);box-shadow:0 8px 24px var(--ind-glow);transform:translateY(-2px)}
.btn-ghost{display:inline-flex;align-items:center;padding:13px 26px;background:transparent;color:var(--text-sec);border:1px solid var(--border);border-radius:6px;font-size:.88rem;transition:all .2s;cursor:pointer}
.btn-ghost:hover{border-color:var(--ind);color:var(--ind-light)}
.hero-mini{display:flex;gap:20px}
.hm{display:flex;flex-direction:column}
.hm strong{font-size:1.2rem;font-weight:800;color:var(--ind-light)}
.hm span{font-size:.72rem;color:var(--text-muted)}
.hero-visual{position:relative}
.hero-img{border-radius:var(--radius);border:1px solid var(--border);object-fit:cover;width:100%;max-height:400px}

/* Section */
.s-hd{text-align:center;margin-bottom:52px}
.chip{display:inline-block;padding:5px 14px;background:rgba(99,102,241,0.08);color:var(--ind-light);border:1px solid var(--border);border-radius:20px;font-size:.75rem;font-weight:600;letter-spacing:1px;margin-bottom:12px}
.s-hd h2{font-size:2rem;font-weight:700;margin-bottom:10px}
.s-hd p{font-size:.9rem;color:var(--text-sec);max-width:540px;margin:0 auto}

/* Features */
.feat-sec{padding:90px 0;background:var(--bg2);position:relative;z-index:1}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.fc{padding:28px 24px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);transition:all .25s;cursor:pointer;position:relative;overflow:hidden}
.fc::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--ind);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.fc:hover{border-color:var(--border-h);transform:translateY(-4px)}
.fc:hover::before{transform:scaleX(1)}
.fc-ico{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:rgba(99,102,241,0.08);border-radius:8px;margin-bottom:16px}
.fc-ico svg{width:22px;height:22px;stroke:var(--ind-light)}
.fc h3{font-size:1.02rem;font-weight:600;margin-bottom:8px}
.fc p{font-size:.84rem;color:var(--text-sec);line-height:1.7}

/* Services */
.svc-sec{padding:90px 0;position:relative;z-index:1}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.svc-card{display:flex;flex-direction:column;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .25s;cursor:pointer}
.svc-card:hover{border-color:var(--border-h);transform:translateY(-3px)}
.svc-img{height:170px;overflow:hidden}
.svc-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.svc-card:hover .svc-img img{transform:scale(1.03)}
.svc-body{padding:20px 22px}
.svc-body h3{font-size:1rem;font-weight:600;margin-bottom:8px}
.svc-body p{font-size:.82rem;color:var(--text-sec);line-height:1.7;margin-bottom:12px}
.svc-lk{color:var(--ind-light);font-size:.82rem;font-weight:600;transition:opacity .2s}
.svc-lk:hover{opacity:.7}

/* About */
.about-sec{padding:90px 0;background:var(--bg2);position:relative;z-index:1}
.about-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-media img{border-radius:var(--radius);border:1px solid var(--border);object-fit:cover;width:100%;max-height:360px}
.about-body .chip{margin-bottom:10px}
.about-body h2{font-size:1.7rem;font-weight:700;margin-bottom:14px}
.about-body p{font-size:.88rem;color:var(--text-sec);margin-bottom:12px;line-height:1.8}
.link-main{display:inline-flex;align-items:center;gap:4px;color:var(--ind-light);font-weight:600;font-size:.88rem;transition:opacity .2s;cursor:pointer}
.link-main:hover{opacity:.7}

/* Cases */
.case-sec{padding:90px 0;position:relative;z-index:1}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{padding:28px 24px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);transition:all .25s}
.case-card:hover{border-color:var(--border-h);transform:translateY(-3px)}
.case-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.case-type{font-size:.72rem;font-weight:600;color:var(--ind-light);background:rgba(99,102,241,0.1);padding:3px 10px;border-radius:4px}
.case-ok{font-size:.72rem;color:var(--text-muted)}
.case-card h3{font-size:1rem;font-weight:600;margin-bottom:8px}
.case-card>p{font-size:.84rem;color:var(--text-sec);line-height:1.7;margin-bottom:14px}
.case-meta{display:flex;gap:16px;font-size:.75rem;color:var(--text-muted)}

/* Testimonials */
.testi-sec{padding:90px 0;background:var(--bg2);position:relative;z-index:1}
.t-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tc{padding:26px 22px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);transition:all .25s}
.tc:hover{transform:translateY(-3px);border-color:var(--border-h)}
.tc-stars{color:var(--ind-light);font-size:.85rem;margin-bottom:14px;letter-spacing:2px}
.tc>p{font-size:.85rem;color:var(--text-sec);line-height:1.8;margin-bottom:16px;font-style:italic}
.tc-bot{display:flex;align-items:center;gap:8px;font-size:.82rem}
.tc-bot strong{color:var(--text)}
.tc-bot span{color:var(--text-muted)}

/* FAQ */
.faq-sec{padding:90px 0;position:relative;z-index:1}
.faq-layout{display:grid;grid-template-columns:1fr 2fr;gap:60px}
.faq-side{position:sticky;top:100px;align-self:start}
.faq-side .chip{margin-bottom:10px}
.faq-side h2{font-size:1.7rem;font-weight:700;margin-bottom:12px}
.faq-side p{font-size:.85rem;color:var(--text-sec);line-height:1.8}
.faq-main{display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:border-color .2s}
.faq-item:hover{border-color:var(--border-h)}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;cursor:pointer;font-weight:500;font-size:.9rem}
.faq-q svg{flex-shrink:0;stroke:var(--ind);transition:transform .3s}
.faq-item.active .faq-q svg{transform:rotate(180deg)}
.faq-a{padding:0 20px 16px;color:var(--text-sec);font-size:.84rem;line-height:1.8;display:none}
.faq-item.active .faq-a{display:block}

/* Recommend */
.rec-sec{padding:90px 0;background:var(--bg2);position:relative;z-index:1}
.rec-list{display:flex;flex-wrap:wrap;gap:12px 16px;justify-content:center}
.rec-list a{display:inline-flex;align-items:center;padding:9px 18px;background:var(--bg);border:1px solid var(--border);border-radius:6px;font-size:.84rem;color:var(--text-sec);transition:all .2s;cursor:pointer}
.rec-list a:hover{border-color:var(--ind);color:var(--ind-light);background:var(--bg-card-h)}

/* CTA */
.cta-sec{padding:80px 0;position:relative;z-index:1}
.cta-box{text-align:center;padding:64px 40px;border:1px solid var(--border);border-radius:14px;position:relative;overflow:hidden;background:linear-gradient(135deg,rgba(99,102,241,0.06),rgba(129,140,248,0.03))}
.cta-box::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,transparent,var(--ind),transparent)}
.cta-box h2{font-size:1.8rem;font-weight:700;margin-bottom:10px}
.cta-box p{font-size:.88rem;color:var(--text-sec);margin-bottom:28px}

/* Footer */
.footer{padding:48px 0 0;border-top:1px solid var(--border);position:relative;z-index:1}
.ft-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px}
.ft-brand .logo{margin-bottom:14px}
.ft-desc{font-size:.8rem;color:var(--text-muted);line-height:1.8;max-width:380px}
.ft-col h4{font-size:.88rem;font-weight:600;margin-bottom:14px}
.ft-col ul{list-style:none}
.ft-col li{margin-bottom:8px}
.ft-col a{font-size:.8rem;color:var(--text-muted);transition:color .2s}
.ft-col a:hover{color:var(--ind-light)}
.ft-bottom{padding:20px 0;border-top:1px solid var(--border);text-align:center}
.ft-bottom p{font-size:.72rem;color:var(--text-muted)}

/* Page */
.page-hero{padding:140px 0 60px;text-align:center;position:relative;z-index:1}
.page-hero h1{font-size:2.5rem;font-weight:800;margin-bottom:10px}
.page-hero p{font-size:.92rem;color:var(--text-sec)}

/* Responsive */
@media(max-width:1024px){.hero-split{grid-template-columns:1fr;text-align:center}.hero-text{order:1}.hero-visual{order:2;max-width:440px;margin:0 auto}.hero-p{margin:0 auto 28px}.hero-btns{justify-content:center}.hero-mini{justify-content:center}.feat-grid,.case-grid{grid-template-columns:repeat(2,1fr)}.svc-grid{grid-template-columns:1fr}.about-row{grid-template-columns:1fr}.about-body{text-align:center}.t-grid{grid-template-columns:1fr}.faq-layout{grid-template-columns:1fr}.faq-side{position:static;text-align:center}.ft-grid{grid-template-columns:1fr;text-align:center}.ft-desc{margin:0 auto}}
@media(max-width:768px){.navbar{top:8px;left:8px;right:8px;padding:10px 16px;flex-wrap:wrap}.nav-links{display:none;position:absolute;top:calc(100% + 8px);left:0;right:0;flex-direction:column;background:rgba(8,8,12,0.97);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;gap:0;backdrop-filter:blur(16px)}.nav-links.active{display:flex}.nav-links li{border-bottom:1px solid var(--border)}.nav-links li:last-child{border-bottom:none}.nav-links a{display:block;padding:12px 0}.nav-cta{display:none}.mobile-btn{display:block}.hero{padding:100px 0 50px;min-height:auto}.hero h1{font-size:2rem}.hero-btns{flex-direction:column}.btn-main,.btn-ghost{width:100%;justify-content:center;padding:14px 24px}.hero-mini{flex-wrap:wrap;gap:14px}.feat-grid,.case-grid{grid-template-columns:1fr}.s-hd h2{font-size:1.5rem}.cta-box{padding:40px 20px}.cta-box h2{font-size:1.4rem}.ft-grid{gap:24px}}