/* === 0040 石板蓝+靛蓝 专业企业风 === */
:root{--p:#4F46E5;--pd:#3730A3;--s:#64748B;--d:#1E293B;--l:#F1F5F9;--w:#FFFFFF;--r:14px;--sh:0 1px 3px rgba(0,0,0,.06);--shm:0 4px 12px rgba(0,0,0,.07);--shl:0 12px 30px rgba(0,0,0,.1)}
*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC",sans-serif;color:var(--d);line-height:1.6;background:var(--w)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.text-primary{color:var(--p)}

/* Navbar */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid #E2E8F0;transition:all .3s}
.navbar.scrolled{box-shadow:var(--shl)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--d);font-weight:800;font-size:1.2rem}
.logo-mark{width:38px;height:38px;background:linear-gradient(135deg,var(--s),var(--p));border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none}
.nav-links a{text-decoration:none;color:var(--s);font-weight:500;font-size:.9rem;padding:8px 14px;border-radius:8px;transition:all .2s}
.nav-links a:hover{color:var(--p);background:#EEF2FF}
.btn-nav{background:var(--p)!important;color:#fff!important;padding:10px 20px!important;font-weight:600!important}
.btn-nav:hover{background:var(--pd)!important;color:#fff!important}
.menu-btn{display:none;background:none;border:none;font-size:1.4rem;cursor:pointer;color:var(--d)}

/* Hero */
.hero{padding:130px 24px 70px;background:linear-gradient(180deg,#F1F5F9 0%,#F8FAFC 40%,#FFF 100%)}
.hero-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.hero-chip{display:inline-flex;align-items:center;gap:6px;background:#EEF2FF;color:var(--p);font-size:.85rem;font-weight:600;padding:8px 16px;border-radius:50px;margin-bottom:20px}
.hero-title{font-size:2.8rem;font-weight:900;line-height:1.2;letter-spacing:-1px;margin-bottom:18px;color:var(--d)}
.hero-title span{color:var(--p)}
.hero-desc{font-size:1.05rem;color:var(--s);line-height:1.7;margin-bottom:30px;max-width:500px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:var(--r);font-size:1rem;font-weight:600;text-decoration:none;transition:all .3s;cursor:pointer;border:none}
.btn-fill{background:var(--p);color:#fff;box-shadow:0 4px 16px rgba(79,70,229,.3)}
.btn-fill:hover{background:var(--pd);transform:translateY(-2px);box-shadow:0 8px 24px rgba(79,70,229,.4)}
.btn-ghost{background:#fff;color:var(--p);border:2px solid #E2E8F0}
.btn-ghost:hover{background:#EEF2FF;border-color:var(--p);transform:translateY(-2px)}
.hero-trust{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
.trust-item{display:flex;align-items:center;gap:5px;font-size:.82rem;color:var(--s);font-weight:500}
.trust-item i{color:#10B981;font-size:.75rem}
.hero-visual{position:relative}
.grid-card{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.12)}
.grid-card img{width:100%;display:block;border-radius:20px}
.grid-float{position:absolute;background:#fff;border-radius:12px;padding:10px 16px;display:flex;align-items:center;gap:8px;font-size:.85rem;font-weight:600;box-shadow:var(--shl);color:var(--d)}
.grid-float i{color:var(--p)}
.grid-float.a{top:15px;left:-20px}
.grid-float.b{bottom:25px;left:-15px}
.grid-float.c{bottom:60px;right:-15px}

/* Section */
.section{padding:75px 24px}
.bg-light{background:var(--l)}
.section-head{text-align:center;margin-bottom:50px}
.tag{display:inline-block;background:#EEF2FF;color:var(--p);font-size:.8rem;font-weight:700;padding:5px 14px;border-radius:50px;margin-bottom:14px;letter-spacing:.5px;text-transform:uppercase}
.section-head h2{font-size:2.2rem;font-weight:800;letter-spacing:-.5px;margin-bottom:10px;color:var(--d)}
.section-head p{font-size:1.05rem;color:var(--s);max-width:560px;margin:0 auto}

/* Features */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat-card{background:#fff;border:1px solid #E2E8F0;border-radius:var(--r);padding:28px 24px;transition:all .3s;position:relative}
.feat-card:hover{transform:translateY(-5px);box-shadow:var(--shl);border-color:transparent}
.feat-icon{width:50px;height:50px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:16px}
.feat-icon.s1{background:#EEF2FF;color:var(--p)}.feat-icon.s2{background:#F0FDF4;color:#16A34A}
.feat-icon.s3{background:#FFF7ED;color:#EA580C}.feat-icon.s4{background:#FEF2F2;color:#DC2626}
.feat-icon.s5{background:#F5F3FF;color:#7C3AED}.feat-icon.s6{background:#FFFBEB;color:#CA8A04}
.feat-card h3{font-size:1.1rem;font-weight:700;margin-bottom:8px;color:var(--d)}
.feat-card p{font-size:.88rem;color:var(--s);line-height:1.6}

/* Stats */
.stats-bar{background:var(--d);padding:50px 24px}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-num{font-size:2.8rem;font-weight:900;color:#fff;margin-bottom:4px;letter-spacing:-1px}
.stat-num span{font-size:1.2rem;font-weight:500;color:rgba(255,255,255,.5)}
.stat-label{font-size:.9rem;color:rgba(255,255,255,.5);font-weight:500}

/* Testimonials */
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.testi-card{background:#fff;border:1px solid #E2E8F0;border-radius:var(--r);padding:26px;transition:all .3s}
.testi-card:hover{box-shadow:var(--shl);transform:translateY(-3px)}
.testi-stars{color:#F59E0B;font-size:1rem;margin-bottom:12px;letter-spacing:2px}
.testi-text{font-size:.9rem;color:var(--d);line-height:1.7;margin-bottom:18px;font-style:italic}
.testi-author{display:flex;align-items:center;gap:10px}
.testi-author img{width:40px;height:40px;border-radius:50%;background:var(--l)}
.testi-author strong{font-size:.88rem;display:block}
.testi-author span{font-size:.78rem;color:var(--s)}

/* FAQ */
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.faq-item{border:1px solid #E2E8F0;border-radius:12px;overflow:hidden;transition:all .2s}
.faq-item:hover{border-color:#CBD5E1}
.faq-btn{width:100%;text-align:left;background:#fff;border:none;padding:18px 22px;font-size:1rem;font-weight:600;color:var(--d);cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;transition:all .2s}
.faq-btn i{transition:transform .3s;color:var(--s);font-size:.8rem}
.faq-item.open .faq-btn i{transform:rotate(45deg);color:var(--p)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease}
.faq-item.open .faq-panel{max-height:250px;padding:0 22px 18px}
.faq-panel p{font-size:.9rem;color:var(--s);line-height:1.7}

/* CTA */
.cta-wrap{background:linear-gradient(135deg,var(--s),var(--p));padding:70px 24px;position:relative;overflow:hidden}
.cta-wrap::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 50%,rgba(255,255,255,.1) 0%,transparent 60%)}
.cta-inner{position:relative;z-index:1;text-align:center;color:#fff}
.cta-inner h2{font-size:2.2rem;font-weight:900;margin-bottom:12px;letter-spacing:-.5px}
.cta-inner p{font-size:1.05rem;opacity:.85;margin-bottom:30px;max-width:500px;margin-left:auto;margin-right:auto}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-cta-white{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--p);padding:15px 34px;border-radius:var(--r);font-size:1.05rem;font-weight:700;text-decoration:none;transition:all .3s}
.btn-cta-white:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.2)}
.btn-cta-outline{display:inline-flex;align-items:center;gap:8px;background:transparent;color:#fff;padding:15px 34px;border-radius:var(--r);font-size:1.05rem;font-weight:700;text-decoration:none;border:2px solid rgba(255,255,255,.4);transition:all .3s}
.btn-cta-outline:hover{background:rgba(255,255,255,.1);border-color:#fff}

/* Footer */
.footer{background:#0F172A;color:rgba(255,255,255,.5);padding:50px 24px 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:30px}
.footer-brand h3{color:#fff;font-size:1.15rem;font-weight:800;margin-bottom:10px}
.footer-brand p{font-size:.85rem;line-height:1.6;margin-bottom:14px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);text-decoration:none;transition:all .2s;font-size:.85rem}
.footer-social a:hover{background:var(--p);color:#fff}
.footer-col h4{color:#fff;font-size:.9rem;font-weight:700;margin-bottom:14px}
.footer-col a{display:block;color:rgba(255,255,255,.4);text-decoration:none;font-size:.82rem;margin-bottom:9px;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bot{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,.06);font-size:.8rem}

/* Responsive */
@media(max-width:1024px){.feat-grid{grid-template-columns:repeat(2,1fr)}.testi-grid{grid-template-columns:repeat(2,1fr)}.stats-row{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){
  .nav-links{display:none}.nav-links.open{display:flex;flex-direction:column;position:absolute;top:68px;left:0;right:0;background:#fff;padding:16px;border-bottom:1px solid #E2E8F0;box-shadow:var(--shl)}
  .menu-btn{display:block}
  .hero-grid{grid-template-columns:1fr;text-align:center;gap:30px}
  .hero-title{font-size:2rem}.hero-desc{max-width:100%}.hero-btns,.hero-trust{justify-content:center}
  .hero-visual{order:-1}.grid-card img{max-width:280px;margin:0 auto}.grid-float{display:none}
  .feat-grid{grid-template-columns:1fr}.testi-grid{grid-template-columns:1fr}
  .section-head h2{font-size:1.6rem}.cta-inner h2{font-size:1.6rem}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .hero{padding:110px 16px 40px}.hero-title{font-size:1.6rem}
  .btn{padding:12px 22px}.hero-btns{flex-direction:column;width:100%}
  .btn{justify-content:center;width:100%}
  .stats-row{grid-template-columns:1fr 1fr;gap:16px}.stat-num{font-size:2rem}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:48px 16px}
}