*{margin:0;padding:0;box-sizing:border-box}
:root{--cyan:#06b6d4;--bg:#ffffff;--bg2:#f8fafc;--card:#ffffff;--text:#0f172a;--text2:#475569;--muted:#94a3b8;--border:#e2e8f0;--accent:#0891b2}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei',Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}
nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 5%}
nav .inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-size:22px;font-weight:800;color:var(--text);text-decoration:none}
.logo span{color:var(--cyan)}
.nav-links{display:flex;gap:32px;list-style:none}
.nav-links a{color:var(--text2);text-decoration:none;font-size:14px;font-weight:500;transition:color .3s}
.nav-links a:hover{color:var(--cyan)}
.nav-btns{display:flex;gap:10px}
.btn-nav{padding:9px 20px;border-radius:10px;font-size:13px;font-weight:600;text-decoration:none;transition:all .3s}
.btn-nav-outline{border:1.5px solid var(--cyan);color:var(--cyan)}
.btn-nav-outline:hover{background:var(--cyan);color:#fff}
.btn-nav-primary{background:var(--cyan);color:#fff}
.btn-nav-primary:hover{background:var(--accent)}
@media(max-width:768px){.nav-links{display:none}}
.hero{min-height:100vh;display:flex;align-items:center;position:relative;padding:0 5%;padding-top:68px}
.hero-bg{position:absolute;inset:0;background:url("../img/minimal-bg.jpg") center/cover no-repeat}
.hero-content{position:relative;z-index:2;max-width:1200px;margin:0 auto;width:100%;padding:80px 0;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.hero-label{display:inline-flex;align-items:center;gap:8px;background:rgba(6,182,212,.08);border:1px solid rgba(6,182,212,.2);padding:6px 16px;border-radius:50px;font-size:12px;color:var(--cyan);font-weight:600;margin-bottom:28px}
.hero-title{font-size:56px;font-weight:800;line-height:1.1;color:var(--text);margin-bottom:20px;letter-spacing:-1px}
.hero-title span{color:var(--cyan)}
.hero-desc{font-size:17px;color:var(--text2);margin-bottom:36px;line-height:1.9;max-width:500px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:15px 30px;border-radius:12px;font-size:15px;font-weight:700;text-decoration:none;transition:all .3s;border:none;cursor:pointer}
.btn-primary{background:var(--cyan);color:#fff;box-shadow:0 4px 20px rgba(6,182,212,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(6,182,212,.4)}
.btn-outline{background:transparent;color:var(--text);border:1.5px solid var(--border)}
.btn-outline:hover{border-color:var(--cyan);color:var(--cyan)}
.hero-img{text-align:center}
.hero-img img{max-width:380px;width:100%;border-radius:20px;box-shadow:0 30px 80px rgba(6,182,212,.12)}
.tabs-bar{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:18px 5%}
.tabs-inner{max-width:1200px;margin:0 auto;display:flex;gap:40px;overflow-x:auto;scrollbar-width:none}
.tabs-inner::-webkit-scrollbar{display:none}
.tab-item{font-size:13px;color:var(--text2);white-shrink:0;font-weight:500;display:flex;align-items:center;gap:6px}
.tab-item strong{color:var(--cyan);font-weight:700}
section{padding:100px 5%}
.section-header{text-align:center;max-width:640px;margin:0 auto 60px}
.section-label{font-size:12px;font-weight:700;color:var(--cyan);text-transform:uppercase;letter-spacing:3px;margin-bottom:12px}
.section-title{font-size:38px;font-weight:800;color:var(--text);margin-bottom:16px;letter-spacing:-.5px}
.section-desc{font-size:16px;color:var(--text2);line-height:1.8}
.section-divider{width:48px;height:4px;background:var(--cyan);border-radius:2px;margin:0 auto 20px}
.features-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feat-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:32px 24px;text-align:center;transition:all .4s}
.feat-card:hover{border-color:var(--cyan);transform:translateY(-6px);box-shadow:0 20px 50px rgba(6,182,212,.1)}
.feat-icon{font-size:44px;margin-bottom:20px;display:block}
.feat-title{font-size:17px;font-weight:700;color:var(--text);margin-bottom:10px}
.feat-desc{font-size:14px;color:var(--text2);line-height:1.7}
.dark-band{background:var(--text);padding:80px 5%}
.dark-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.dark-eyebrow{font-size:12px;font-weight:700;color:var(--cyan);text-transform:uppercase;letter-spacing:3px;margin-bottom:16px}
.dark-title{font-size:38px;font-weight:800;color:#fff;margin-bottom:20px;line-height:1.2}
.dark-title span{color:var(--cyan)}
.dark-desc{font-size:15px;color:#94a3b8;line-height:1.8;margin-bottom:28px}
.dark-list{display:flex;flex-direction:column;gap:16px}
.dark-item{display:flex;gap:16px;align-items:flex-start}
.dark-icon{width:44px;height:44px;border-radius:12px;background:rgba(6,182,212,.15);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:20px}
.dark-text h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:4px}
.dark-text p{font-size:14px;color:#94a3b8}
.products-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-card{background:var(--card);border:1px solid var(--border);border-radius:20px;overflow:hidden;transition:all .4s}
.prod-card:hover{border-color:var(--cyan);transform:translateY(-4px);box-shadow:0 16px 40px rgba(6,182,212,.1)}
.prod-banner{height:140px;display:flex;align-items:center;justify-content:center;font-size:60px;background:linear-gradient(135deg,#f0f9ff,#ecfeff)}
.prod-body{padding:28px}
.prod-tag{display:inline-block;padding:3px 10px;border-radius:6px;font-size:11px;font-weight:700;margin-bottom:12px}
.tag-c{background:rgba(6,182,212,.08);color:var(--cyan)}
.tag-purple{background:rgba(139,92,246,.08);color:#7c3aed}
.tag-orange{background:rgba(249,115,22,.08);color:#ea580c}
.prod-title{font-size:19px;font-weight:700;color:var(--text);margin-bottom:10px}
.prod-desc{font-size:14px;color:var(--text2);line-height:1.7;margin-bottom:16px}
.prod-features{list-style:none;display:flex;flex-direction:column;gap:8px}
.prod-features li{font-size:13px;color:var(--text2);display:flex;align-items:center;gap:8px}
.prod-features li::before{content:'✓';color:var(--cyan);font-weight:700}
.numbers-section{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.numbers-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border)}
.num-item{background:var(--bg2);padding:48px 32px;text-align:center}
.num-n{font-size:44px;font-weight:900;color:var(--cyan);margin-bottom:8px}
.num-l{font-size:14px;color:var(--text2);font-weight:500}
.num-d{font-size:13px;color:var(--muted);margin-top:6px}
.app-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.app-title{font-size:38px;font-weight:800;color:var(--text);margin-bottom:16px;text-align:left}
.app-title span{color:var(--cyan)}
.app-desc{font-size:15px;color:var(--text2);line-height:1.8;margin-bottom:28px;text-align:left}
.app-steps{display:flex;flex-direction:column;gap:20px;margin-bottom:32px}
.step{display:flex;gap:16px;align-items:flex-start}
.step-num{width:36px;height:36px;border-radius:10px;background:var(--cyan);color:#fff;font-size:14px;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.step-text h4{font-size:16px;font-weight:700;color:var(--text);margin-bottom:4px}
.step-text p{font-size:13px;color:var(--text2)}
.app-btns{display:flex;gap:12px}
.btn-sm{padding:12px 24px;border-radius:10px;font-size:14px;font-weight:700;text-decoration:none;transition:all .3s}
.btn-c{background:var(--cyan);color:#fff}
.btn-c:hover{background:var(--accent)}
.btn-o{background:transparent;color:var(--text);border:1.5px solid var(--border)}
.btn-o:hover{border-color:var(--cyan);color:var(--cyan)}
.cta-section{background:var(--text);padding:100px 5%;text-align:center}
.cta-eyebrow{font-size:12px;font-weight:700;color:var(--cyan);text-transform:uppercase;letter-spacing:3px;margin-bottom:16px}
.cta-title{font-size:44px;font-weight:900;color:#fff;margin-bottom:16px}
.cta-desc{font-size:17px;color:#94a3b8;margin-bottom:40px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-lg{padding:18px 40px;border-radius:14px;font-size:16px;font-weight:700;text-decoration:none;transition:all .3s}
.btn-lg-c{background:var(--cyan);color:#fff;box-shadow:0 4px 20px rgba(6,182,212,.3)}
.btn-lg-c:hover{transform:translateY(-2px)}
.btn-lg-o{background:rgba(255,255,255,.08);color:#fff;border:1.5px solid rgba(255,255,255,.2)}
.btn-lg-o:hover{border-color:rgba(255,255,255,.4)}
footer{background:var(--bg2);border-top:1px solid var(--border);padding:60px 5% 30px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--border)}
.footer-logo{font-size:22px;font-weight:800;color:var(--text);margin-bottom:16px}
.footer-logo span{color:var(--cyan)}
.footer-desc{font-size:14px;color:var(--text2);line-height:1.7}
.footer-col h4{font-size:13px;font-weight:700;color:var(--text);margin-bottom:16px;text-transform:uppercase;letter-spacing:1px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{color:var(--text2);text-decoration:none;font-size:13px;transition:color .3s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-copy{font-size:13px;color:var(--muted)}
.footer-socials{display:flex;gap:8px}
.footer-social{width:36px;height:36px;border-radius:10px;background:var(--card);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text2);text-decoration:none;transition:all .3s;font-size:14px}
.footer-social:hover{border-color:var(--cyan);color:var(--cyan)}
@media(max-width:1024px){
.hero-content,.app-grid,.dark-inner{grid-template-columns:1fr}
.features-grid{grid-template-columns:repeat(2,1fr)}
.products-grid{grid-template-columns:repeat(2,1fr)}
.footer-top{grid-template-columns:1fr 1fr}
.hero-img{order:-1}}
@media(max-width:640px){
.hero-title{font-size:32px}
.section-title{font-size:26px}
.features-grid,.products-grid{grid-template-columns:1fr}
.numbers-grid{grid-template-columns:repeat(2,1fr)}
.footer-top{grid-template-columns:1fr}
.cta-title{font-size:28px}
.hero-btns{flex-direction:column;align-items:center}}