:root{color-scheme:light;font-family:system-ui,-apple-system,PingFang SC,Microsoft YaHei,sans-serif;--primary:#4f6ef2;--primary-dark:#3b55d9;--text:#182235;--muted:#5b6b85;--bg:#f6f8fc;--card:#ffffff;--border:#e6ebf3}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}main{max-width:none;padding:0}.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.nav-inner{max-width:72rem;margin:0 auto;padding:.9rem 1.5rem;justify-content:space-between;gap:1rem}.brand,.nav-inner{display:flex;align-items:center}.brand{gap:.5rem;font-weight:700;font-size:1.15rem;color:var(--text);text-decoration:none}.brand-mark{color:var(--primary)}.nav-links{display:flex;gap:1.6rem}.nav-links a{color:var(--muted);text-decoration:none;font-size:.95rem}.nav-links a:hover{color:var(--primary)}.nav-cta{white-space:nowrap}.btn{display:inline-block;padding:.65rem 1.3rem;border-radius:999px;font-weight:600;font-size:.95rem;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:all .15s ease}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-ghost{background:#fff;color:var(--text);border-color:var(--border)}.btn-ghost:hover,.btn-outline{border-color:var(--primary);color:var(--primary)}.btn-outline{background:#fff}.btn-outline:hover{background:var(--primary);color:#fff}.btn-lg{padding:.85rem 2rem;font-size:1.05rem}.hero{background:linear-gradient(180deg,#eef2ff,#ffffff)}.hero-inner{max-width:72rem;margin:0 auto;padding:5rem 1.5rem 4rem;display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center}.eyebrow{display:inline-block;background:#e8edff;color:var(--primary);font-size:.85rem;font-weight:600;padding:.3rem .9rem;border-radius:999px;margin-bottom:1.2rem}.hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.2;margin:0 0 1.2rem;letter-spacing:-.02em}.lead{font-size:1.1rem;color:var(--muted);max-width:34rem;margin:0 0 1.8rem}.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:2.5rem}.hero-stats{list-style:none;display:flex;gap:2.5rem;padding:0;margin:0}.hero-stats li{display:flex;flex-direction:column}.hero-stats strong{font-size:1.6rem;color:var(--text)}.hero-stats span{color:var(--muted);font-size:.9rem}.hero-visual{position:relative;display:flex;justify-content:center}.phone{width:230px;height:460px;background:#182235;border-radius:36px;padding:12px;box-shadow:0 24px 60px rgba(24,34,53,.22)}.phone-notch{width:96px;height:20px;background:#182235;border-radius:0 0 14px 14px;margin:0 auto 8px}.phone-screen{background:#fff;border-radius:24px;height:100%;padding:1rem;display:flex;flex-direction:column;gap:.7rem}.screen-bar{height:12px;background:var(--primary);border-radius:6px;width:55%}.screen-title{height:10px;background:var(--border);border-radius:5px;width:80%}.screen-card{height:90px;background:linear-gradient(135deg,#eef2ff,#dfe7ff);border-radius:12px}.screen-row{display:flex;gap:.7rem}.screen-grid{flex:1 1;height:56px;background:var(--bg);border-radius:10px}.screen-btn{height:34px;background:var(--primary);border-radius:999px;margin-top:auto}.float-chip{position:absolute;background:#fff;box-shadow:0 10px 30px rgba(24,34,53,.12);border-radius:12px;padding:.55rem 1rem;font-size:.85rem;font-weight:600}.chip-a{top:90px;left:0}.chip-b{bottom:70px;right:0}.section{max-width:72rem;margin:0 auto;padding:4.5rem 1.5rem}.section-muted{background:var(--bg);max-width:none}.section-muted>.cases-grid,.section-muted>.features-grid,.section-muted>.pricing-grid,.section-muted>.process-list,.section-muted>.section-head{max-width:72rem;margin-left:auto;margin-right:auto}.section-head{text-align:center;max-width:40rem;margin:0 auto 3rem}.section-head h2{font-size:clamp(1.6rem,4vw,2.2rem);margin:0 0 .6rem;letter-spacing:-.01em}.section-head p{color:var(--muted);margin:0}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}.feature-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:1.6rem;transition:transform .15s ease,box-shadow .15s ease}.feature-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(24,34,53,.08)}.feature-icon{font-size:1.8rem;display:block;margin-bottom:.8rem}.feature-card h3{margin:0 0 .4rem;font-size:1.1rem}.feature-card p{margin:0;color:var(--muted);font-size:.95rem}.cases-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}.case-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:1.8rem}.case-tag{display:inline-block;background:#eef2ff;color:var(--primary);font-size:.8rem;font-weight:600;padding:.25rem .75rem;border-radius:999px;margin-bottom:.8rem}.case-card h3{margin:0 0 .5rem;font-size:1.2rem}.case-card p{margin:0;color:var(--muted);font-size:.95rem}.process-list{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;padding:0;margin:0}.process-item{position:relative;border-top:3px solid var(--border);padding-top:1.4rem}.process-num{font-size:2rem;font-weight:800;color:#dfe7ff;position:absolute;top:-.2rem;right:0}.process-item h3{margin:0 0 .4rem;font-size:1.1rem}.process-item p{margin:0;color:var(--muted);font-size:.95rem}.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;align-items:stretch}.price-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:1.8rem;display:flex;flex-direction:column}.price-card.featured{border-color:var(--primary);box-shadow:0 16px 40px rgba(79,110,242,.15);position:relative}.price-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--primary);color:#fff;font-size:.78rem;font-weight:600;padding:.25rem .9rem;border-radius:999px}.price-card h3{margin:0 0 .8rem;font-size:1.15rem}.price{font-size:1.8rem;font-weight:800;margin-bottom:.4rem}.price-num{font-size:1rem;font-weight:600;color:var(--muted);margin-right:.1rem}.price-note{font-size:.9rem;font-weight:400;color:var(--muted)}.price-card>p{color:var(--muted);font-size:.95rem;margin:0 0 1rem}.price-card ul{list-style:none;padding:0;margin:0 0 1.5rem;flex:1 1}.price-card li{padding:.4rem 0;border-bottom:1px dashed var(--border);color:var(--text);font-size:.95rem}.price-card li:before{content:"✓";color:var(--primary);margin-right:.5rem;font-weight:700}.contact-panel,.price-card .btn{text-align:center}.contact-panel{background:linear-gradient(135deg,#4f6ef2,#3b55d9);border-radius:20px;padding:3rem 2rem;color:#fff}.contact-text{max-width:32rem;margin:0 auto 1.6rem;font-size:1.05rem;color:#e8edff}.contact-panel .btn-primary{background:#fff;color:var(--primary)}.contact-panel .btn-primary:hover{background:#eef2ff}.footer{background:#182235;color:#9aa7bd}.footer-inner{max-width:72rem;margin:0 auto;padding:3rem 1.5rem;text-align:center}.brand-foot{color:#fff;justify-content:center;margin-bottom:.6rem}.footer-inner p{margin:.3rem 0;font-size:.95rem}.footer-copy{color:#6b7a92;font-size:.85rem;margin-top:1rem}@media (max-width:768px){.nav-links{display:none}.hero-inner{grid-template-columns:1fr;padding:3rem 1.5rem 2rem}.hero-visual{order:-1}.phone{width:180px;height:360px}.chip-a{left:10%}.chip-b{right:10%}.hero-stats{gap:1.5rem}.cases-grid,.features-grid,.pricing-grid,.process-list{grid-template-columns:1fr}.section{padding:3rem 1.25rem}}