/* ===== style30 皮肤 · 暗黑科技风（Neon Cyan + Violet）· city_landing ===== */
:root{--ink:#e9edf6;--muted:#98a2b8;--line:rgba(255,255,255,.09);--bg:#0a0e17;--card:#121a2c;--card2:#0e1421;--brand:#22d3ee;--brand2:#8b5cf6;--accent:#34d399;--grad:linear-gradient(135deg,#22d3ee,#8b5cf6);--radius:16px;--radius-sm:10px;--shadow:0 22px 50px -22px rgba(0,0,0,.75);--glow:0 0 0 1px rgba(34,211,238,.25),0 16px 44px -14px rgba(34,211,238,.30)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);line-height:1.85;background:var(--bg);font-size:15px}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 22px}
.navbar{background:rgba(10,14,23,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:999}
.nav-inner{display:flex;align-items:center;height:66px}
.nav-brand{color:#fff;font-size:1.15rem;font-weight:800;display:flex;align-items:center;gap:10px}
.nav-brand .city-tag{font-size:.72rem;background:rgba(34,211,238,.14);color:var(--brand);padding:3px 11px;border-radius:20px;font-weight:600;border:1px solid rgba(34,211,238,.25)}
.nav-links{list-style:none;display:flex;gap:2px;margin-left:auto}
.nav-links a{color:var(--muted);padding:9px 15px;display:block;font-size:.92rem;font-weight:500;border-radius:8px;transition:all .2s}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.06)}
.nav-phone{margin-left:20px;background:var(--grad);color:#04121a;font-weight:800;font-size:.92rem;padding:9px 18px;border-radius:30px;white-space:nowrap;box-shadow:0 8px 22px -8px rgba(34,211,238,.6)}
.hero{position:relative;overflow:hidden;background:var(--bg);padding:92px 0 0}
.hero::before{content:'';position:absolute;top:-160px;left:50%;transform:translateX(-50%);width:900px;height:560px;background:radial-gradient(closest-side,rgba(34,211,238,.20),transparent 70%),radial-gradient(closest-side,rgba(139,92,246,.18),transparent 70%);background-position:30% 30%,70% 60%;background-repeat:no-repeat;filter:blur(8px)}
.hero::after{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:radial-gradient(circle at 50% 0,#000,transparent 72%);mask-image:radial-gradient(circle at 50% 0,#000,transparent 72%)}
.hero .container{position:relative;z-index:1}
.hero-badge{display:inline-block;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--brand);padding:7px 18px;border-radius:30px;font-size:.78rem;font-weight:700;letter-spacing:1px;margin-bottom:22px;backdrop-filter:blur(4px)}
.hero h1{font-size:clamp(2.1rem,5.2vw,3.5rem);font-weight:850;color:#fff;line-height:1.18;letter-spacing:-.5px;max-width:900px;margin:0 auto 18px;text-align:center}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .subtitle{font-size:1.08rem;color:var(--muted);max-width:640px;margin:0 auto 32px;text-align:center;line-height:1.9}
.hero-highlights{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hl-item{font-size:.86rem;color:var(--ink);background:rgba(255,255,255,.04);border:1px solid var(--line);padding:9px 16px;border-radius:30px;display:flex;align-items:center;gap:8px}
.hl-item::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px var(--brand)}
.hero-cta{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;padding-bottom:60px}
.btn-primary{background:var(--grad);color:#04121a;padding:15px 34px;border-radius:30px;font-weight:800;font-size:1rem;display:inline-block;transition:all .25s;box-shadow:0 14px 34px -12px rgba(34,211,238,.6)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(139,92,246,.6)}
.btn-outline{border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;padding:14px 28px;border-radius:30px;font-size:.95rem;font-weight:600;display:inline-block;transition:all .25s;backdrop-filter:blur(4px)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand)}
.hero-stats{position:relative;z-index:1;padding:0 0 64px}
.hero-stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.hero-stat{background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:var(--radius);padding:24px 18px;text-align:center;transition:all .25s}
.hero-stat:hover{transform:translateY(-4px);box-shadow:var(--glow)}
.hero-stat .hs-value{font-size:1.95rem;font-weight:850;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1;margin-bottom:6px}
.hero-stat .hs-label{font-size:.8rem;color:var(--muted)}
.stats-bar{background:var(--card2);border-bottom:1px solid var(--line);padding:34px 0}
.stats-grid{display:flex;justify-content:center;gap:0;flex-wrap:wrap}
.stat-item{text-align:center;padding:0 44px}
.stat-value{font-size:2.1rem;font-weight:850;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.stat-label{font-size:.82rem;color:var(--muted);margin-top:6px}
.section-header{text-align:center;margin-bottom:44px}
.section-header h2{font-size:1.8rem;font-weight:800;color:#fff;display:inline-block;position:relative;padding-bottom:14px}
.section-header h2::after{content:'';position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:50px;height:3px;border-radius:3px;background:var(--grad)}
.section-header p{color:var(--muted);font-size:.93rem;margin-top:14px}
.about{padding:84px 0;background:var(--bg)}
.about-body{max-width:960px;margin:0 auto}
.local-intro-box{background:rgba(34,211,238,.07);padding:22px 24px;border-radius:var(--radius-sm);border-left:3px solid var(--brand);margin-bottom:24px;font-size:.93rem;line-height:2;color:var(--ink)}
.about-text{font-size:.97rem;line-height:2.15;color:#c3ccdd}
.about-cols{display:flex;gap:36px;align-items:center}
.about-cols .about-text-col{flex:1;min-width:0}
.about-cols .about-img-col{flex:0 0 42%;max-width:42%}
.about-img{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.about-img img{display:block;width:100%;height:auto}
.about-contact{margin-top:26px;padding:20px 22px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);display:flex;gap:28px;align-items:center;flex-wrap:wrap}
.about-contact strong{color:#fff}
.about-contact a{color:var(--brand);font-weight:800}
.about-qr{display:inline-flex;align-items:center}
.about-qr img{width:84px;height:84px;padding:4px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);object-fit:contain}
.advantages{padding:84px 0;background:var(--card2)}
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;list-style:none}
.adv-card{background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015));padding:28px 24px;border-radius:var(--radius);border:1px solid var(--line);transition:all .25s}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--glow);border-color:rgba(34,211,238,.35)}
.adv-icon{background:#eef2f7;width:50px;height:50px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:14px;background:rgba(34,211,238,.12);color:var(--brand);border:1px solid rgba(34,211,238,.2)}
.adv-icon.precision,.adv-icon.customize{background:rgba(139,92,246,.14);color:#a78bfa;border-color:rgba(139,92,246,.25)}
.adv-icon.certificate,.adv-icon.certification,.adv-icon.shield,.adv-icon.service{background:rgba(52,211,153,.14);color:#34d399;border-color:rgba(52,211,153,.25)}
.adv-card h3{font-size:1.05rem;font-weight:800;color:#fff;margin-bottom:8px}
.adv-card p{font-size:.86rem;color:var(--muted);line-height:1.8}
.products{padding:84px 0;background:var(--bg)}
.prod-group{margin-bottom:46px}
.prod-group-title{font-size:1.2rem;font-weight:800;color:#fff;margin-bottom:22px;display:flex;align-items:center;gap:12px}
.prod-group-title::before{content:'';width:10px;height:22px;border-radius:4px;background:var(--grad)}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;list-style:none}
.prod-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .25s}
.prod-card:hover{box-shadow:var(--glow);transform:translateY(-4px);border-color:rgba(34,211,238,.35)}
.prod-thumb{width:100%;height:188px;background:linear-gradient(135deg,#0f1626,#16203a);display:flex;align-items:center;justify-content:center;color:#3a4561;font-size:2.4rem;position:relative;overflow:hidden}
.prod-thumb img{width:100%;height:100%;object-fit:contain;padding:8px;transition:transform .45s}
.prod-card:hover .prod-thumb img{transform:scale(1.07)}
.prod-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(34,211,238,.4),rgba(139,92,246,.25) 60%,transparent);display:flex;align-items:flex-end;justify-content:center;opacity:0;transition:opacity .3s}
.prod-card:hover .prod-overlay{opacity:1}
.prod-overlay span{margin-bottom:14px;width:42px;height:42px;border-radius:50%;background:#04121a;color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:1.1rem;border:1px solid var(--brand)}
.prod-name{padding:14px;font-size:.9rem;font-weight:700;color:var(--ink);text-align:center}
.prod-tag{font-size:.75rem;color:var(--muted);display:block;font-weight:400;margin-top:3px}
.faq{padding:84px 0;background:var(--card2)}
.faq-list{max-width:880px;margin:0 auto;list-style:none}
.faq-item{margin-bottom:12px;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:all .2s}
.faq-item[open]{border-color:rgba(34,211,238,.4);box-shadow:var(--glow)}
.faq-item summary{padding:18px 22px;font-weight:700;font-size:.95rem;color:#fff;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-size:1.5rem;color:var(--brand);font-weight:300;flex-shrink:0}
.faq-item[open] summary::after{content:'\2212'}
.faq-answer{padding:0 22px 18px;font-size:.9rem;color:var(--muted);line-height:1.95}
.cta-bottom{padding:78px 0;background:var(--grad);color:#04121a;text-align:center;position:relative;overflow:hidden}
.cta-bottom::before{content:'';position:absolute;inset:0;background:radial-gradient(600px 300px at 80% 120%,rgba(255,255,255,.25),transparent 60%)}
.cta-bottom .container{position:relative;z-index:1}
.cta-bottom h2{font-size:1.8rem;margin-bottom:10px;font-weight:850}
.cta-bottom p{opacity:.85;margin-bottom:26px;font-size:.98rem}
.cta-bottom .btn-primary{background:#04121a;color:#fff;box-shadow:0 14px 32px -12px rgba(0,0,0,.5)}
.cta-bottom .btn-primary:hover{transform:translateY(-2px)}
.friend-links{padding:54px 0;background:#070a12}
.friend-links h2{color:#fff;font-size:1.15rem;margin-bottom:20px;font-weight:700}
.fl-grid{display:flex;flex-wrap:wrap;gap:10px}
.fl-tag{display:inline-block;padding:8px 16px;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:30px;color:var(--muted);font-size:.82rem;transition:all .2s}
.fl-tag:hover{border-color:var(--brand);color:var(--brand)}
.footer{background:#05070d;padding:32px 0;color:#6b7488;text-align:center;font-size:.82rem}
.footer p{margin:4px 0}
@media(max-width:920px){.hero-stats .container{grid-template-columns:repeat(2,1fr)}.adv-grid{grid-template-columns:1fr 1fr}.prod-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.nav-links{display:none}.nav-phone{margin-left:auto}.hero{padding:60px 0 0}.hero h1{font-size:2rem}.prod-grid{grid-template-columns:repeat(2,1fr)}.about-cols{flex-direction:column;gap:20px;align-items:stretch}.about-cols .about-img-col{flex:none;max-width:100%}.about-contact{flex-direction:column;gap:10px;align-items:flex-start}.stat-item{padding:10px 20px}}
@media(max-width:480px){.hero-stats .container{grid-template-columns:1fr 1fr}.adv-grid{grid-template-columns:1fr}.prod-grid{grid-template-columns:1fr 1fr}}