/* ════════════════════════════════════════════
   智林创想官网 - 共享样式表
   主题：深邃蓝 #1e3a8a + 翠林绿 #059669 + 天空蓝 #0ea5e9
   定位：全域数智增长全链路服务商
   ════════════════════════════════════════════ */

/* ── Reset & Base ── */
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 24px)}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;-webkit-font-smoothing:antialiased;background:#f6f8fc;color:#111827;line-height:1.8;overflow-x:hidden}

/* ── CSS Variables ── */
:root{
  --b1:#1e3a8a;--b2:#1d4ed8;--b3:#2563eb;--b4:#3b82f6;--b5:#60a5fa;--b6:#93c5fd;
  --green:#059669;--green2:#10b981;--green3:#34d399;
  --cyan:#0ea5e9;--cyan2:#06b6d4;
  --purple:#7c3aed;
  --dark:#0a0f1a;--dark2:#111827;--dark3:#1f2937;--grey:#6b7280;--lgrey:#9ca3af;
  --ice:#f0f4ff;--ice2:#e8eeff;--ice3:#dbe4ff;
  --ice-g:#ecfdf5;--ice-g2:#d1fae5;--ice-g3:#a7f3d0;
  --border:#e5e7eb;--border-b:rgba(37,99,235,.2);--border-g:rgba(5,150,105,.2);
  --white:#ffffff;
  --nav-h:64px;
  --shadow-sm:0 2px 10px rgba(0,0,0,.04);
  --shadow-md:0 6px 24px rgba(30,58,138,.06);
  --shadow-lg:0 12px 48px rgba(30,58,138,.1);
  --glow:0 0 30px rgba(59,130,246,.15);
}

/* ── Nav ── */
.site-nav{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-h);background:rgba(246,248,252,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 24px}
.nav-inner{max-width:1200px;width:100%;margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.nav-logo-img{width:38px;height:38px;border-radius:8px;background:linear-gradient(135deg,var(--b1),var(--green));display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:900;color:#fff;flex-shrink:0;overflow:hidden}
.nav-logo-img img{width:100%;height:100%;object-fit:cover}
.nav-logo-text{font-size:17px;font-weight:800;color:var(--b1);letter-spacing:1px}
.nav-logo-text span{color:var(--green)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{font-size:13px;color:var(--grey);text-decoration:none;padding:6px 14px;border-radius:6px;transition:.2s;letter-spacing:.5px;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--b2);background:rgba(37,99,235,.06)}

/* Hamburger */
.nav-hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px;border:none;background:none}
.nav-hamburger span{display:block;width:22px;height:2px;background:var(--b2);border-radius:2px;transition:.3s}
.nav-hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-hamburger.open span:nth-child(2){opacity:0}
.nav-hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Mobile menu */
.nav-mobile{display:none;position:fixed;top:var(--nav-h);left:0;right:0;background:rgba(246,248,252,.98);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:16px 24px 24px;z-index:999;flex-direction:column;gap:4px;box-shadow:0 8px 32px rgba(0,0,0,.1)}
.nav-mobile.open{display:flex}
.nav-mobile a{font-size:15px;color:var(--dark2);text-decoration:none;padding:12px 0;border-bottom:1px solid var(--ice3);font-weight:500}
.nav-mobile a:last-child{border:none;margin-top:8px}

/* ── Layout helpers ── */
.con{max-width:1100px;margin:0 auto;position:relative;z-index:2;padding:0 20px}
.con-wide{max-width:1200px;margin:0 auto;position:relative;z-index:2;padding:0 20px}
section{padding:80px 0;position:relative}
.pt-nav{padding-top:calc(var(--nav-h) + 80px)}

/* Section labels */
.sl{font-size:10px;letter-spacing:5px;color:var(--green);text-transform:uppercase;margin-bottom:6px;font-weight:600}
.st{font-size:clamp(22px,3.8vw,32px);font-weight:800;margin-bottom:10px;line-height:1.3;color:var(--dark)}
.st .h{color:var(--b2)}
.st .g{color:var(--green)}
.sd{font-size:13px;color:var(--grey);max-width:640px;line-height:2}
.sc{text-align:center}.sc .sd{margin:0 auto}

/* Divider */
.dv{height:1px;background:linear-gradient(to right,transparent,var(--border),transparent);max-width:900px;margin:0 auto}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 32px;border-radius:8px;font-size:13px;font-weight:600;text-decoration:none;cursor:pointer;transition:.3s;letter-spacing:.5px;border:none}
.btn-primary{background:linear-gradient(135deg,var(--b2),var(--b3));color:#fff;box-shadow:0 4px 16px rgba(37,99,235,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(37,99,235,.4)}
.btn-green{background:linear-gradient(135deg,var(--green),var(--green2));color:#fff;box-shadow:0 4px 16px rgba(5,150,105,.3)}
.btn-green:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(5,150,105,.4)}
.btn-cyan{background:linear-gradient(135deg,var(--cyan),var(--cyan2));color:#fff}
.btn-cyan:hover{transform:translateY(-2px);opacity:.92}
.btn-outline{background:none;border:1.5px solid var(--b2);color:var(--b2)}
.btn-outline:hover{background:var(--b2);color:#fff}
.btn-outline-w{background:none;border:1.5px solid rgba(255,255,255,.4);color:rgba(255,255,255,.85)}
.btn-outline-w:hover{background:rgba(255,255,255,.1)}
.btn-lg{padding:16px 40px;font-size:14px;border-radius:10px}
.btn-sm{padding:8px 20px;font-size:12px;border-radius:6px}

/* ── Cards ── */
.card{background:var(--white);border:1px solid var(--border);border-radius:14px;padding:24px;transition:all .3s;box-shadow:var(--shadow-sm)}
.card:hover{border-color:var(--b4);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.cards{display:grid;gap:16px;margin-top:32px}
.cards-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.cards-3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.cards-4{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}

.tag{font-size:10px;padding:3px 10px;border:1px solid rgba(59,130,246,.25);border-radius:10px;color:var(--b3);display:inline-flex;align-items:center}
.tag-green{border-color:rgba(5,150,105,.25);color:var(--green)}

/* ── Service items ── */
.svc-item{background:var(--white);border:1px solid var(--border);border-radius:14px;padding:28px;display:flex;gap:20px;transition:.3s;box-shadow:var(--shadow-sm)}
.svc-item:hover{border-color:var(--b4);box-shadow:var(--shadow-md)}
.svc-num{font-size:42px;font-weight:900;color:rgba(37,99,235,.08);line-height:1;flex-shrink:0;min-width:50px}
.svc-content .sc-title{font-size:15px;font-weight:700;color:var(--b1);margin-bottom:6px}
.svc-content .sc-desc{font-size:12px;color:var(--grey);line-height:1.9}
.svc-content .sc-features{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}

/* ── Trust badges ── */
.trust-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.trust-badge{display:flex;align-items:center;gap:10px;background:var(--white);border:1px solid var(--border);border-radius:10px;padding:12px 18px;box-shadow:var(--shadow-sm)}
.tb-icon{font-size:22px}
.tb-text .tbt{font-size:12px;font-weight:700;color:var(--b1)}
.tb-text .tbd{font-size:10px;color:var(--lgrey)}

/* ── Big numbers ── */
.big-nums{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin-top:32px}
.bn{text-align:center;padding:22px 28px;background:var(--white);border:1px solid var(--border);border-radius:12px;min-width:140px;box-shadow:var(--shadow-sm)}
.bn .num{font-size:36px;font-weight:900;color:var(--b2);line-height:1}
.bn .num.g{color:var(--green)}
.bn .lbl{font-size:11px;color:var(--lgrey);margin-top:4px;letter-spacing:1px}

/* ── Process steps ── */
.process{display:flex;flex-wrap:wrap;gap:0;margin-top:40px;position:relative}
.process::before{content:'';position:absolute;top:26px;left:0;right:0;height:1px;background:rgba(59,130,246,.15)}
.step{flex:1;min-width:120px;text-align:center;position:relative;padding:0 8px}
.step-num{width:52px;height:52px;border-radius:50%;border:1.5px solid rgba(37,99,235,.3);background:var(--white);display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-size:17px;font-weight:900;color:var(--b2);position:relative;z-index:1;box-shadow:var(--shadow-sm)}
.step-title{font-size:12px;font-weight:700;color:var(--dark3);margin-bottom:4px}
.step-desc{font-size:11px;color:var(--grey);line-height:1.6}

/* ── Highlight box ── */
.hl-box{background:linear-gradient(135deg,rgba(37,99,235,.03),rgba(5,150,105,.02));border:1px solid rgba(59,130,246,.15);border-radius:14px;padding:28px;margin-top:24px}
.hl-box .hb-title{font-size:14px;font-weight:700;color:var(--b1);margin-bottom:14px}
.hl-box ul{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px}
.hl-box li{font-size:12px;color:var(--grey);padding-left:16px;position:relative;line-height:1.9}
.hl-box li::before{content:'\25B8';position:absolute;left:0;color:var(--green2)}

/* ── Pain points ── */
.pain-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-top:28px}
.pain-item{background:var(--ice);border:1px solid var(--ice3);border-radius:12px;padding:20px;transition:.3s}
.pain-item:hover{border-color:var(--b4);background:var(--white)}
.pain-icon{font-size:26px;margin-bottom:8px}
.pain-title{font-size:13px;font-weight:700;color:var(--dark3);margin-bottom:4px}
.pain-desc{font-size:11px;color:var(--grey);line-height:1.8}

/* ── Timeline ── */
.timeline{position:relative;padding-left:28px;margin-top:32px}
.timeline::before{content:'';position:absolute;left:6px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--b2),var(--green),transparent)}
.tl-item{position:relative;margin-bottom:28px;padding-left:20px}
.tl-dot{position:absolute;left:-28px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--b2);border:2px solid #f6f8fc;box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.tl-dot.g{background:var(--green);box-shadow:0 0 0 3px rgba(5,150,105,.15)}
.tl-year{font-size:11px;font-weight:700;color:var(--b2);letter-spacing:2px;margin-bottom:2px}
.tl-title{font-size:14px;font-weight:700;color:var(--dark3);margin-bottom:3px}
.tl-desc{font-size:12px;color:var(--grey);line-height:1.8}

/* ── Cases ── */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:32px}
.case-card{background:var(--white);border:1px solid var(--border);border-radius:14px;padding:24px;transition:.3s;box-shadow:var(--shadow-sm);overflow:hidden}
.case-card:hover{border-color:var(--b4);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.case-img{width:100%;height:160px;border-radius:10px;margin-bottom:14px;background:linear-gradient(135deg,var(--ice),var(--ice-g));display:flex;align-items:center;justify-content:center;overflow:hidden}
.case-img img{width:100%;height:100%;object-fit:cover}
.case-img-placeholder{font-size:12px;color:var(--lgrey);text-align:center}
.case-tag{font-size:10px;padding:3px 10px;background:rgba(37,99,235,.06);border:1px solid rgba(37,99,235,.15);border-radius:10px;color:var(--b3);display:inline-block;margin-bottom:10px}
.case-tag.g{background:rgba(5,150,105,.06);border-color:rgba(5,150,105,.15);color:var(--green)}
.case-name{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:6px}
.case-result{font-size:24px;font-weight:900;color:var(--b2);margin:8px 0 4px}
.case-result.g{color:var(--green)}
.case-desc{font-size:12px;color:var(--grey);line-height:1.8}

/* ── Team ── */
.tm-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:28px}
.tm{background:var(--white);border:1px solid var(--border);border-radius:14px;padding:24px;text-align:center;transition:.3s;box-shadow:var(--shadow-sm)}
.tm:hover{border-color:var(--b4);box-shadow:var(--shadow-md)}
.tm-av{width:68px;height:68px;border-radius:50%;border:2px solid rgba(37,99,235,.25);margin:0 auto 12px;display:flex;align-items:center;justify-content:center;font-size:24px;background:rgba(37,99,235,.04);overflow:hidden}
.tm-av img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.tm-name{font-size:15px;font-weight:700;color:var(--dark)}
.tm-role{font-size:11px;color:var(--green);letter-spacing:1px;margin:4px 0 10px}
.tm-desc{font-size:11px;color:var(--grey);line-height:1.8;text-align:left}

/* ── Partner tags ── */
.partner-grid{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;justify-content:center}
.partner-tag{padding:8px 18px;background:var(--ice);border:1px solid var(--ice3);border-radius:8px;font-size:12px;color:var(--dark3);font-weight:500;transition:.2s;cursor:default}
.partner-tag:hover{border-color:var(--b4);color:var(--b2);background:var(--white)}

/* ── CTA Section ── */
.cta-sec{background:linear-gradient(160deg,#0a1628 0%,#1e3a5f 55%,#1e3a8a 100%);padding:80px 0;position:relative;overflow:hidden}
.cta-sec::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 70% 30%,rgba(59,130,246,.15),transparent 60%);pointer-events:none}
.cta-inner{max-width:720px;margin:0 auto;text-align:center;padding:0 24px;position:relative;z-index:1}
.cta-title{font-size:clamp(24px,4vw,38px);font-weight:900;line-height:1.3;margin-bottom:12px;color:#fff}
.cta-title .g{background:linear-gradient(135deg,var(--b5),var(--green3));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.cta-sub{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:36px;line-height:2}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:36px}
.contact-items{display:flex;flex-wrap:wrap;gap:20px;justify-content:center}
.ci{font-size:12px;color:rgba(255,255,255,.5);display:flex;align-items:center;gap:8px}
.ci .ci-icon{font-size:16px}

/* ── Footer ── */
footer{background:var(--dark);padding:40px 20px;text-align:center}
.footer-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;text-align:left;margin-bottom:32px}
.footer-col h4{font-size:14px;font-weight:700;color:rgba(255,255,255,.9);margin-bottom:14px;letter-spacing:1px}
.footer-col a,.footer-col p{font-size:12px;color:rgba(255,255,255,.45);text-decoration:none;display:block;margin-bottom:8px;transition:.2s;line-height:1.8}
.footer-col a:hover{color:rgba(255,255,255,.8)}
.footer-bottom{max-width:1100px;margin:0 auto;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);font-size:11px;color:rgba(255,255,255,.3);text-align:center;line-height:1.8}

/* ── Image placeholder ── */
.img-ph{background:linear-gradient(135deg,var(--ice),var(--ice-g));border:2px dashed var(--border-b);border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--lgrey);font-size:12px;text-align:center;gap:6px}
.img-ph-icon{font-size:32px;opacity:.4}
.img-ph-text{font-size:11px;letter-spacing:1px}

/* ── FAQ ── */
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:.3s}
.faq-item:hover{border-color:var(--b4)}
.faq-q{padding:18px 24px;font-size:14px;font-weight:600;color:var(--dark2);cursor:pointer;display:flex;align-items:center;justify-content:space-between;transition:.2s}
.faq-q:hover{color:var(--b2)}
.faq-q .faq-icon{font-size:18px;transition:.3s;color:var(--b3)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0 24px}
.faq-item.open .faq-q .faq-icon{transform:rotate(45deg)}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 18px}
.faq-a p{font-size:12px;color:var(--grey);line-height:2}

/* ── Breadcrumb ── */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--lgrey);margin-bottom:24px}
.breadcrumb a{color:var(--b3);text-decoration:none;transition:.2s}
.breadcrumb a:hover{color:var(--b2)}
.breadcrumb span{color:var(--lgrey)}

/* ── Lab badge ── */
.lab-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;background:linear-gradient(135deg,rgba(37,99,235,.08),rgba(5,150,105,.08));border:1px solid rgba(37,99,235,.2);border-radius:20px;font-size:11px;color:var(--b2);font-weight:600;letter-spacing:1px;margin-bottom:20px}
.lab-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--green2);animation:blink 2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}

/* ── Responsive ── */
@media(max-width:768px){
  .nav-links{display:none}
  .nav-hamburger{display:flex}
  .nav-mobile{display:none}
  .nav-mobile.open{display:flex}
  section{padding:56px 0}
  .big-nums{gap:10px}
  .bn{min-width:110px;padding:16px 20px}
  .bn .num{font-size:28px}
  .footer-inner{text-align:center}
  .process{flex-direction:column;gap:24px}
  .process::before{display:none}
  .svc-item{flex-direction:column;gap:12px}
  .svc-num{font-size:32px}
}