:root {
  --ink:       #0f172a;
  --navy:      #1e293b;
  --blue:      #2563eb;
  --blue-d:    #1d4ed8;
  --gold:      #d4a853;
  --gold-l:    #f0e6ce;
  --cream:     #faf9f7;
  --gray:      #64748b;
  --gray-l:    #94a3b8;
  --border:    #e2e8f0;
  --white:     #ffffff;
  --shadow-s:  0 2px 8px rgba(15,23,42,0.06);
  --shadow-m:  0 8px 32px rgba(15,23,42,0.10);
  --shadow-l:  0 20px 60px rgba(15,23,42,0.14);
  --r:         16px;
  --t:         0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--cream);color:var(--ink);line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{text-decoration:none;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
img{max-width:100%;display:block}

/* ===== 导航 ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(250,249,247,0.8);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid var(--border);transition:var(--t)}
.navbar.scrolled{box-shadow:var(--shadow-s)}
.nav-container{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:72px}
.nav-logo{display:flex;align-items:center;gap:10px}
.logo-img{height:44px;width:auto;max-width:200px;object-fit:contain}
.nav-menu{display:flex;list-style:none;gap:32px}
.nav-link{font-size:14px;font-weight:500;color:var(--navy);position:relative;padding:4px 0;transition:var(--t)}
.nav-link::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;background:var(--blue);border-radius:1px;transition:var(--t)}
.nav-link:hover::after{width:100%}
.nav-cta{padding:10px 24px;background:var(--blue);color:#fff;border-radius:8px;font-size:14px;font-weight:600;transition:var(--t)}
.nav-cta:hover{background:var(--blue-d);transform:translateY(-1px)}
.nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--ink)}

/* ===== Hero ===== */
.hero{min-height:100vh;display:flex;align-items:center;padding:120px 24px 80px;position:relative;overflow:hidden;background:linear-gradient(160deg,var(--ink) 0%,var(--navy) 60%,#1a2744 100%)}
.hero-deco{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.hero-circle{position:absolute;border-radius:50%;border:1px solid rgba(212,168,83,0.12)}
.hero-circle-1{width:800px;height:800px;top:-300px;right:-200px}
.hero-circle-2{width:500px;height:500px;bottom:-150px;left:-100px}
.hero-line{position:absolute;background:linear-gradient(90deg,transparent,rgba(212,168,83,0.08),transparent);height:1px}
.hero-line-1{width:60%;top:25%;left:20%}
.hero-line-2{width:40%;top:75%;left:40%}
.hero-inner{max-width:1200px;margin:0 auto;width:100%;display:grid;grid-template-columns:1.2fr 0.8fr;gap:64px;align-items:center;position:relative;z-index:1}
.hero-badge{display:inline-block;padding:8px 20px;border:1px solid rgba(212,168,83,0.35);border-radius:100px;font-size:13px;color:var(--gold);letter-spacing:2px;margin-bottom:28px}
.hero-title{font-family:'Noto Serif SC',serif;font-size:clamp(36px,5.5vw,60px);font-weight:900;color:#fff;line-height:1.25;margin-bottom:20px}
.hero-title em{font-style:normal;color:var(--gold)}
.hero-desc{font-size:16px;color:rgba(255,255,255,0.65);max-width:520px;line-height:1.9;margin-bottom:36px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;padding:14px 36px;border-radius:10px;font-size:15px;font-weight:600;transition:var(--t);cursor:pointer}
.btn-primary{background:var(--gold);color:var(--ink);border:none}
.btn-primary:hover{background:#e8c36a;transform:translateY(-2px);box-shadow:0 8px 24px rgba(212,168,83,0.3)}
.btn-ghost{background:transparent;color:var(--gold);border:1.5px solid rgba(212,168,83,0.5)}
.btn-ghost:hover{border-color:var(--gold);background:rgba(212,168,83,0.08)}
.hero-kpi{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.kpi-item{padding:28px 24px;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);border-radius:var(--r);display:flex;flex-direction:column;gap:4px;transition:var(--t)}
.kpi-item:hover{border-color:rgba(212,168,83,0.3);background:rgba(255,255,255,0.06)}
.kpi-num{font-family:'Noto Serif SC',serif;font-size:36px;font-weight:900;color:var(--gold);line-height:1}
.kpi-unit{font-size:13px;color:rgba(255,255,255,0.5);letter-spacing:1px}

/* ===== 通用 Section ===== */
.section{padding:100px 0}
.section-header{text-align:center;margin-bottom:56px}
.section-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:4px;color:var(--gold);text-transform:uppercase;margin-bottom:12px}
.section-title{font-family:'Noto Serif SC',serif;font-size:clamp(28px,4vw,42px);font-weight:800;color:var(--ink);line-height:1.3;margin-bottom:12px}
.section-desc{font-size:16px;color:var(--gray);max-width:520px;margin:0 auto}

/* ===== 核心服务 ===== */
.services{background:var(--white)}
.svc-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-bottom:40px}
.svc-card{padding:40px 32px;background:var(--cream);border:1px solid var(--border);border-radius:var(--r);transition:var(--t);position:relative}
.svc-card:hover{border-color:var(--blue);box-shadow:var(--shadow-m);transform:translateY(-4px)}
.svc-badge{position:absolute;top:16px;right:16px;padding:4px 14px;background:var(--blue);color:#fff;border-radius:100px;font-size:11px;font-weight:600}
.svc-icon{font-size:42px;margin-bottom:16px}
.svc-card h3{font-family:'Noto Serif SC',serif;font-size:22px;font-weight:700;margin-bottom:12px}
.svc-card>p{font-size:14px;color:var(--gray);line-height:1.8;margin-bottom:20px}
.svc-list{list-style:none;margin-bottom:24px}
.svc-list li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--navy);padding:6px 0;border-bottom:1px solid var(--border)}
.svc-list li:last-child{border-bottom:none}
.svc-check{color:var(--blue);font-weight:700;margin-top:2px;flex-shrink:0}
.svc-highlight{display:flex;align-items:center;gap:12px;padding:14px 18px;background:rgba(37,99,235,0.06);border-radius:10px;font-size:13px;color:var(--navy)}
.svc-tag{padding:4px 12px;background:var(--blue);color:#fff;border-radius:6px;font-size:11px;font-weight:700;flex-shrink:0}
.adv-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.adv-strip-item{display:flex;align-items:center;gap:14px;padding:24px 20px;background:var(--cream);border:1px solid var(--border);border-radius:var(--r);transition:var(--t)}
.adv-strip-item:hover{border-color:var(--gold);box-shadow:var(--shadow-s)}
.adv-strip-icon{font-size:32px;flex-shrink:0}
.adv-strip-item strong{display:block;font-size:14px;color:var(--ink);margin-bottom:2px}
.adv-strip-item span{font-size:12px;color:var(--gray)}

/* ===== 荣誉资质 ===== */
.honors{background:var(--cream)}
.honor-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.honor-card{padding:28px 24px;background:var(--white);border:1px solid var(--border);border-radius:var(--r);text-align:center;transition:var(--t)}
.honor-card:hover{border-color:var(--gold);box-shadow:var(--shadow-s);transform:translateY(-3px)}
.honor-star{font-size:24px;color:var(--gold);margin-bottom:12px}
.honor-card p{font-size:14px;color:var(--navy);line-height:1.7}
.honor-card strong{color:var(--blue)}

/* ===== 服务数据 ===== */
.data-section{background:linear-gradient(160deg,var(--ink) 0%,var(--navy) 100%)}
.data-section .section-tag{color:var(--gold)}
.data-section .section-title{color:#fff}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.data-card{padding:48px 24px;border:1px solid rgba(255,255,255,0.08);border-radius:var(--r);text-align:center;transition:var(--t);background:rgba(255,255,255,0.02)}
.data-card:hover{border-color:rgba(212,168,83,0.3);background:rgba(255,255,255,0.04)}
.data-num{font-family:'Noto Serif SC',serif;font-size:52px;font-weight:900;color:var(--gold);line-height:1}
.data-unit{font-family:'Noto Serif SC',serif;font-size:24px;color:var(--gold);opacity:0.5}
.data-label{font-size:14px;color:rgba(255,255,255,0.5);margin-top:8px;letter-spacing:1px}

/* ===== 关于我们 ===== */
.about{background:var(--white)}
.about-flex{display:grid;grid-template-columns:1.1fr 0.9fr;gap:64px;align-items:start}
.about-p{font-size:15px;color:var(--gray);line-height:1.9;margin-bottom:32px}
.about-values{display:flex;flex-direction:column;gap:20px}
.value-item{display:flex;gap:16px;align-items:flex-start}
.value-icon{color:var(--gold);font-size:18px;margin-top:4px;flex-shrink:0}
.value-item strong{display:block;font-size:15px;color:var(--ink);margin-bottom:2px}
.value-item span{font-size:13px;color:var(--gray);line-height:1.6}
.timeline{position:relative;padding-left:32px}
.timeline::before{content:'';position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--border)}
.timeline-item{position:relative;padding-bottom:32px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{position:absolute;left:-29px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--gold);border:3px solid var(--white);box-shadow:0 0 0 3px var(--gold-l)}
.timeline-content{padding:16px 20px;background:var(--cream);border-radius:10px;border:1px solid var(--border)}
.timeline-content strong{display:block;font-size:15px;color:var(--ink);margin-bottom:4px}
.timeline-content span{font-size:13px;color:var(--gray)}

/* ===== 合作伙伴 ===== */
.partners{background:var(--cream)}
.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.partner-item{padding:24px 16px;background:var(--white);border:1px solid var(--border);border-radius:var(--r);text-align:center;font-size:15px;font-weight:600;color:var(--navy);transition:var(--t)}
.partner-logos{display:grid;grid-template-columns:repeat(4,1fr)!important;gap:16px}
.partner-logos .partner-item{padding:0;display:block;aspect-ratio:3/2;background:var(--white);border:1px solid var(--border);border-radius:var(--r);transition:var(--t);background-image:url('skin/images/pattern.png');background-repeat:no-repeat;background-size:400% 1200%;overflow:hidden}
.partner-logos .partner-item:hover{border-color:var(--blue);box-shadow:var(--shadow-s);transform:translateY(-2px)}
/* Row 1 */
.partner-logos .partner-item{background-position:0% 0%}
/* Row 1 */
.partner-logos .partner-item:nth-child(4n+1){background-position:0% 0%}
.partner-logos .partner-item:nth-child(4n+2){background-position:33.33% 0%}
.partner-logos .partner-item:nth-child(4n+3){background-position:66.66% 0%}
.partner-logos .partner-item:nth-child(4n+4){background-position:100% 0%}
/* Row 2 */
.partner-logos .partner-item:nth-child(n+5):nth-child(-n+8){background-position-y:9.09%}
/* Row 3 */
.partner-logos .partner-item:nth-child(n+9):nth-child(-n+12){background-position-y:18.18%}
/* Row 4 */
.partner-logos .partner-item:nth-child(n+13):nth-child(-n+16){background-position-y:27.27%}
/* Row 5 */
.partner-logos .partner-item:nth-child(n+17):nth-child(-n+20){background-position-y:36.36%}
/* Row 6 */
.partner-logos .partner-item:nth-child(n+21):nth-child(-n+24){background-position-y:45.45%}
/* Row 7 */
.partner-logos .partner-item:nth-child(n+25):nth-child(-n+28){background-position-y:54.54%}
/* Row 8 */
.partner-logos .partner-item:nth-child(n+29):nth-child(-n+32){background-position-y:63.63%}
/* Row 9 */
.partner-logos .partner-item:nth-child(n+33):nth-child(-n+36){background-position-y:72.72%}
/* Row 10 */
.partner-logos .partner-item:nth-child(n+37):nth-child(-n+40){background-position-y:81.81%}
/* Row 11 */
.partner-logos .partner-item:nth-child(n+41):nth-child(-n+44){background-position-y:90.9%}
/* Row 12 */
.partner-item:hover{border-color:var(--blue);color:var(--blue);box-shadow:var(--shadow-s);transform:translateY(-2px)}

/* ===== 联系我们 ===== */
.contact{background:var(--white)}
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.contact-card{padding:40px 28px;background:var(--cream);border:1px solid var(--border);border-radius:var(--r);text-align:center;transition:var(--t)}
.contact-card:hover{border-color:var(--blue);box-shadow:var(--shadow-m)}
.contact-icon{font-size:40px;margin-bottom:14px}
.contact-card h4{font-size:15px;color:var(--gray);font-weight:500;margin-bottom:12px}
.contact-phone{font-size:22px;font-weight:700;color:var(--ink);font-family:'Courier New',monospace;letter-spacing:1px}
.contact-phone-2{font-size:18px;margin-top:4px}
.contact-addr{font-size:14px;color:var(--navy);line-height:1.8}
.contact-btn{display:inline-block;margin-top:16px;padding:8px 24px;background:var(--blue);color:#fff;border-radius:20px;font-size:13px;font-weight:500;transition:var(--t)}
.contact-qr{width:120px;height:120px;margin:12px auto 0;border-radius:var(--r);object-fit:contain;display:block}
.contact-btn:hover{background:var(--blue-d);box-shadow:0 4px 12px rgba(37,99,235,0.3)}
.contact-online{display:flex;flex-direction:column;gap:8px;align-items:center}
.online-link{font-size:14px;color:var(--blue);transition:var(--t)}
.online-link:hover{color:var(--blue-d)}
.contact-fax{text-align:center;margin-top:32px;font-size:14px;color:var(--gray)}

/* ===== Footer ===== */
.footer{background:var(--ink);color:rgba(255,255,255,0.7);padding:64px 0 0}
.footer-inner{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,0.1)}
.footer-logo{margin-bottom:12px}
.footer-logo-img{height:48px;width:auto;max-width:220px;object-fit:contain;filter:brightness(0) invert(1)}
.footer-brand p{font-size:13px;line-height:1.8;max-width:280px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col a{display:block;font-size:13px;color:rgba(255,255,255,0.55);padding:4px 0;transition:var(--t)}
.footer-col a:hover{color:var(--gold)}
.footer-col p{font-size:13px;padding:3px 0}
.footer-bottom{padding:20px 0;font-size:12px;color:rgba(255,255,255,0.35);text-align:center;line-height:2}
.footer-bottom a{color:rgba(255,255,255,0.5);text-decoration:none;transition:var(--t)}
.footer-bottom a:hover{color:rgba(255,255,255,0.8)}

/* ===== 悬浮按钮 ===== */
.float-btn{position:fixed;bottom:32px;right:32px;z-index:999;width:56px;height:56px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;cursor:pointer;box-shadow:var(--shadow-l);transition:var(--t)}
.float-btn:hover{transform:scale(1.1);box-shadow:0 24px 48px rgba(37,99,235,0.35)}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-kpi{grid-template-columns:repeat(4,1fr)}
  .svc-grid{grid-template-columns:1fr}
  .adv-strip{grid-template-columns:repeat(2,1fr)}
  .about-flex{grid-template-columns:1fr;gap:40px}
  .partner-grid{grid-template-columns:repeat(4,1fr)}
  .partner-logos{grid-template-columns:repeat(4,1fr)!important}
  .partner-logos .partner-item:nth-child(4n+1){background-position:0% 0%}
  .partner-logos .partner-item:nth-child(4n+2){background-position:33.33% 0%}
  .partner-logos .partner-item:nth-child(4n+3){background-position:66.66% 0%}
  .partner-logos .partner-item:nth-child(4n+4){background-position:100% 0%}
  .partner-logos .partner-item:nth-child(n+5):nth-child(-n+8){background-position-y:9.09%}
  .partner-logos .partner-item:nth-child(n+9):nth-child(-n+12){background-position-y:18.18%}
  .partner-logos .partner-item:nth-child(n+13):nth-child(-n+16){background-position-y:27.27%}
  .partner-logos .partner-item:nth-child(n+17):nth-child(-n+20){background-position-y:36.36%}
  .partner-logos .partner-item:nth-child(n+21):nth-child(-n+24){background-position-y:45.45%}
  .partner-logos .partner-item:nth-child(n+25):nth-child(-n+28){background-position-y:54.54%}
  .partner-logos .partner-item:nth-child(n+29):nth-child(-n+32){background-position-y:63.63%}
  .partner-logos .partner-item:nth-child(n+33):nth-child(-n+36){background-position-y:72.72%}
  .partner-logos .partner-item:nth-child(n+37):nth-child(-n+40){background-position-y:81.81%}
  .partner-logos .partner-item:nth-child(n+41):nth-child(-n+44){background-position-y:90.9%}
  .partner-logos .partner-item:nth-child(n+45):nth-child(-n+48){background-position-y:100%}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-menu{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--white);padding:20px;gap:0;box-shadow:0 4px 20px rgba(0,0,0,.1)}
  .nav-menu.active{display:flex}
  .nav-menu a{display:block;padding:12px 0;font-size:16px;border-bottom:1px solid var(--border)}
  .nav-toggle{display:block}
  .hero{padding:100px 24px 60px}
  .hero-kpi{grid-template-columns:1fr 1fr}
  .data-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:repeat(3,1fr)}
  .partner-logos{grid-template-columns:repeat(3,1fr)!important}
  .partner-logos .partner-item:nth-child(3n+1){background-position:0% 0%}
  .partner-logos .partner-item:nth-child(3n+2){background-position:50% 0%}
  .partner-logos .partner-item:nth-child(3n+3){background-position:100% 0%}
  .partner-logos .partner-item:nth-child(n+4):nth-child(-n+6){background-position-y:9.09%}
  .partner-logos .partner-item:nth-child(n+7):nth-child(-n+9){background-position-y:18.18%}
  .partner-logos .partner-item:nth-child(n+10):nth-child(-n+12){background-position-y:27.27%}
  .partner-logos .partner-item:nth-child(n+13):nth-child(-n+15){background-position-y:36.36%}
  .partner-logos .partner-item:nth-child(n+16):nth-child(-n+18){background-position-y:45.45%}
  .partner-logos .partner-item:nth-child(n+19):nth-child(-n+21){background-position-y:54.54%}
  .partner-logos .partner-item:nth-child(n+22):nth-child(-n+24){background-position-y:63.63%}
  .partner-logos .partner-item:nth-child(n+25):nth-child(-n+27){background-position-y:72.72%}
  .partner-logos .partner-item:nth-child(n+28):nth-child(-n+30){background-position-y:81.81%}
  .partner-logos .partner-item:nth-child(n+31):nth-child(-n+33){background-position-y:90.9%}
  .partner-logos .partner-item:nth-child(n+34):nth-child(-n+36){background-position-y:100%}
  .footer-inner{grid-template-columns:1fr}
}
@media(max-width:480px){
  .hero-kpi{grid-template-columns:1fr}
  .data-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .partner-logos{grid-template-columns:repeat(2,1fr)!important}
  .partner-logos .partner-item:nth-child(2n+1){background-position:0% 0%}
  .partner-logos .partner-item:nth-child(2n+2){background-position:100% 0%}
  .partner-logos .partner-item:nth-child(n+3):nth-child(-n+4){background-position-y:9.09%}
  .partner-logos .partner-item:nth-child(n+5):nth-child(-n+6){background-position-y:18.18%}
  .partner-logos .partner-item:nth-child(n+7):nth-child(-n+8){background-position-y:27.27%}
  .partner-logos .partner-item:nth-child(n+9):nth-child(-n+10){background-position-y:36.36%}
  .partner-logos .partner-item:nth-child(n+11):nth-child(-n+12){background-position-y:45.45%}
  .partner-logos .partner-item:nth-child(n+13):nth-child(-n+14){background-position-y:54.54%}
  .partner-logos .partner-item:nth-child(n+15):nth-child(-n+16){background-position-y:63.63%}
  .partner-logos .partner-item:nth-child(n+17):nth-child(-n+18){background-position-y:72.72%}
  .partner-logos .partner-item:nth-child(n+19):nth-child(-n+20){background-position-y:81.81%}
  .partner-logos .partner-item:nth-child(n+21):nth-child(-n+22){background-position-y:90.9%}
  .partner-logos .partner-item:nth-child(n+23):nth-child(-n+24){background-position-y:100%}
  .adv-strip{grid-template-columns:1fr}
}