/* ========== 深色 Hero ========== */
.about-hero-dark{position:relative;overflow:hidden;padding:100px 0 80px;background:linear-gradient(135deg,#0f172a 0%,#1e3a5f 50%,#0f172a 100%);color:#fff}
.about-hero-dark::before{content:'';position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(90deg,rgba(255,255,255,.015) 0px,rgba(255,255,255,.015) 1px,transparent 1px,transparent 60px),repeating-linear-gradient(0deg,rgba(255,255,255,.01) 0px,rgba(255,255,255,.01) 1px,transparent 1px,transparent 60px)}
.about-hero-bg-decor{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.ahd-ring{position:absolute;border-radius:50%;border:1.5px solid rgba(108,196,255,.12)}
.ahd-ring-1{width:500px;height:500px;top:-100px;right:-100px;animation:ahdSpin 25s linear infinite}
.ahd-ring-2{width:350px;height:350px;bottom:-80px;left:-60px;animation:ahdSpin 18s linear infinite reverse;border-color:rgba(47,125,246,.15)}
.ahd-ring-3{width:200px;height:200px;top:50%;left:50%;transform:translate(-50%,-50%);animation:ahdSpin 12s linear infinite;border-color:rgba(108,196,255,.18)}
@keyframes ahdSpin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
.ahd-ring-3{animation-name:ahdSpin3}
@keyframes ahdSpin3{from{transform:translate(-50%,-50%) rotate(0deg)}to{transform:translate(-50%,-50%) rotate(360deg)}}
.about-hero-dark-inner{position:relative;z-index:1;text-align:center}
.about-hero-dark-en{display:inline-block;font-size:.78rem;letter-spacing:.35em;color:#6cc4ff;font-weight:700;margin-bottom:16px;padding:5px 16px;border:1px solid rgba(108,196,255,.3);border-radius:999px}
.about-hero-dark h1{font-size:clamp(2rem,4vw,3rem);margin:0 0 16px;color:#fff;font-weight:800}
.about-hero-dark-sub{color:rgba(255,255,255,.75);font-size:1.05rem;margin:0 0 20px;max-width:600px;margin-left:auto;margin-right:auto}
.about-hero-dark-line{width:48px;height:3px;margin:0 auto 40px;border-radius:2px;background:linear-gradient(90deg,#2f7df6,#6cc4ff)}

/* ========== 客户合作 - 深色 Hero 统计 ========== */
.partners-hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.partners-hero-stat{text-align:center;padding:20px 10px;border-radius:14px;background:rgba(255,255,255,.08);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.12);transition:transform .3s}
.partners-hero-stat:hover{transform:translateY(-3px);background:rgba(255,255,255,.14)}
.partners-hero-stat strong{display:block;font-size:32px;font-weight:800;color:#fff;line-height:1.2}
.partners-hero-stat span{font-size:13px;color:rgba(255,255,255,.6);margin-top:6px;display:block}

/* 客户 Logo 跑马灯 */
.clients-marquee{overflow:hidden;padding:30px 0;background:#fff;border-bottom:1px solid #eee}
.clients-marquee-track{display:flex;gap:48px;width:max-content;animation:clientScroll 22s linear infinite}
.clients-marquee:hover .clients-marquee-track{animation-play-state:paused}
@keyframes clientScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.client-logo-item{display:flex;align-items:center;gap:12px;padding:14px 28px;background:#f8fafc;border-radius:12px;border:1px solid rgba(15,23,42,.12);white-space:nowrap;transition:all .3s ease;cursor:default}
.client-logo-img{width:40px;height:40px;flex-shrink:0;border-radius:8px;overflow:hidden;transition:transform .3s ease}
.client-logo-img svg,.client-logo-img img{width:100%;height:100%;object-fit:contain}
.client-logo-item span{font-size:1rem;font-weight:700;color:#6b7280;letter-spacing:.05em;transition:color .3s ease}
.client-logo-item:hover{background:#fff;border-color:#2f7df6;box-shadow:0 6px 20px rgba(47,125,246,.12);transform:translateY(-3px)}
.client-logo-item:hover span{color:#2f7df6}
.client-logo-item:hover .client-logo-img{transform:scale(1.15) rotate(-3deg)}

/* 合作优势 */
.partners-adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.partners-adv-card{position:relative;padding:36px 28px;border-radius:16px;background:#fff;border:1px solid #eee;overflow:hidden;transition:all .35s}
.partners-adv-card::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,#0f172a,#3b82f6);opacity:0;transition:opacity .35s;z-index:0}
.partners-adv-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(11,62,136,.12);border-color:transparent}
.partners-adv-card:hover::before{opacity:1}
.partners-adv-card:hover *{color:#fff!important;position:relative;z-index:1}
.partners-adv-card:hover .partners-adv-icon{background:rgba(255,255,255,.2)}
.partners-adv-card:hover .partners-adv-num{color:rgba(255,255,255,.15)!important}
.partners-adv-icon{width:56px;height:56px;border-radius:14px;background:rgba(47,125,246,.08);display:flex;align-items:center;justify-content:center;margin-bottom:18px;transition:background .35s}
.partners-adv-icon svg{width:28px;height:28px;stroke:#0f172a;fill:none;stroke-width:1.8;transition:stroke .35s}
.partners-adv-card:hover .partners-adv-icon svg{stroke:#fff}
.partners-adv-card h4{font-size:18px;font-weight:700;color:#1f2937;margin:0 0 10px;position:relative;z-index:1;transition:color .35s}
.partners-adv-card p{font-size:14px;color:#6b7280;line-height:1.7;margin:0;position:relative;z-index:1;transition:color .35s}
.partners-adv-num{position:absolute;right:20px;bottom:14px;font-size:56px;font-weight:800;color:rgba(11,62,136,.04);line-height:1;transition:color .35s}

/* 合作模式 */
.partners-models-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.partners-model-card{border-radius:16px;overflow:hidden;background:#fff;border:1px solid #eee;transition:all .35s;position:relative}
.partners-model-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(0,0,0,.1)}
.partners-model-header{display:flex;align-items:center;gap:14px;padding:24px 24px 0}
.partners-model-icon{width:52px;height:52px;border-radius:14px;background:rgba(47,125,246,.08);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#2f7df6;transition:all .35s}
.partners-model-card:hover .partners-model-icon{background:linear-gradient(135deg,#2f7df6,#6cc4ff);color:#fff;transform:scale(1.08)}
.partners-model-header h4{font-size:18px;font-weight:700;color:#1f2937;margin:0;transition:color .35s}
.partners-model-card:hover .partners-model-header h4{color:#2f7df6}
.partners-model-card>p{padding:12px 24px 0;font-size:14px;color:#6b7280;line-height:1.7;margin:0}
.partners-model-features{list-style:none;padding:16px 24px 24px;margin:0;display:flex;flex-direction:column;gap:10px}
.partners-model-features li{display:flex;align-items:center;gap:8px;font-size:13px;color:#1f2937}
.partners-model-features li::before{content:"";width:6px;height:6px;border-radius:50%;background:#2f7df6;flex-shrink:0}
.partners-model-badge{position:absolute;top:16px;right:16px;background:linear-gradient(135deg,#2f7df6,#6cc4ff);color:#fff;font-size:12px;font-weight:700;padding:4px 14px;border-radius:20px;z-index:2}
.partners-model-card-featured{border:2px solid #2f7df6}
.partners-model-card-featured .partners-model-header,.partners-model-card-featured>p,.partners-model-card-featured .partners-model-features{background:linear-gradient(180deg,#f0f5ff,#fff)}

/* 全球市场布局 */
.partners-global-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.partners-global-card{padding:32px;border-radius:16px;background:#fff;border:1px solid #eee;transition:all .35s}
.partners-global-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.06)}
.partners-global-region{font-size:18px;font-weight:700;color:#1f2937;margin-bottom:6px}
.partners-global-countries{font-size:13px;color:#6b7280;margin-bottom:16px}
.partners-global-bar{height:8px;border-radius:4px;background:#eee;margin-bottom:10px;overflow:hidden}
.partners-global-bar-fill{height:100%;border-radius:4px;background:linear-gradient(90deg,#0f172a,#3b82f6);transition:width 1.2s ease}
.partners-global-label{font-size:12px;font-weight:600;color:#2f7df6;background:rgba(47,125,246,.08);padding:3px 12px;border-radius:20px;display:inline-block}

/* 客户案例 */
.partners-cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.partners-case-card{border-radius:16px;overflow:hidden;background:#fff;border:1px solid #eee;transition:all .35s;padding:28px}
.partners-case-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(0,0,0,.1)}
.partners-case-top{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.partners-case-top svg{color:#2f7df6;flex-shrink:0}
.partners-case-top span{font-size:16px;font-weight:700;color:#1f2937}
.partners-case-card>p{font-size:14px;color:#6b7280;line-height:1.7;margin:0 0 16px}
.partners-case-tags{display:flex;gap:8px;flex-wrap:wrap}
.partners-case-tags span{font-size:11px;font-weight:600;color:#2f7df6;background:rgba(47,125,246,.08);padding:3px 10px;border-radius:4px}

/* 滚动入场动画 */
.scroll-reveal{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.scroll-reveal.visible{opacity:1;transform:translateY(0)}

@media(max-width:1024px){
    .partners-adv-grid,.partners-models-grid,.partners-cases-grid{grid-template-columns:repeat(2,1fr)}
    .partners-hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
    .partners-adv-grid,.partners-models-grid,.partners-cases-grid,.partners-global-grid{grid-template-columns:1fr}
    .partners-hero-stats{grid-template-columns:repeat(2,1fr)}
    .partners-hero-stat strong{font-size:24px}
    .about-hero-dark{padding:70px 0 50px}
    .about-hero-dark h1{font-size:1.8rem}
}