:root{--bg:#fff;--fg:#0a0a0a;--muted:#f5f5f5;--muted-fg:#6b7280;--border:#e5e7eb;--primary:#111827;--green:#16a34a;--blue:#2563eb;--amber:#f59e0b;--radius:8px;--max:1240px;--shadow:0 12px 34px rgba(0,0,0,.06)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--fg);background:var(--bg);line-height:1.72}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}button,input,select,textarea{font:inherit}.container{width:min(calc(100% - 32px),var(--max));margin:auto}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.nav{height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:21px}.logo{width:32px;height:32px;border-radius:6px;background:#111;color:#fff;display:grid;place-items:center}.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;color:#374151}.nav-actions{display:flex;gap:10px}.mobile-toggle{display:none}
.btn{height:42px;padding:0 17px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:6px;background:#fff;font-size:14px;font-weight:800;cursor:pointer}.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}.btn-primary{background:#111;color:#fff;border-color:#111}.btn-green{background:var(--green);color:#fff;border-color:var(--green)}.btn-lg{height:50px;padding:0 24px}
.badge{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:999px;padding:6px 10px;background:#fff;color:#4b5563;font-size:12px}.dot{width:8px;height:8px;border-radius:50%;background:var(--green)}
.hero{padding:96px 0 74px;border-bottom:1px solid var(--border);background:radial-gradient(circle at 15% 0,rgba(37,99,235,.08),transparent 30%),linear-gradient(#fff,#fafafa)}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:58px;align-items:center}h1,h2,h3,h4{margin:0;line-height:1.14;letter-spacing:-.035em}h1{font-size:clamp(46px,6vw,76px);margin-top:20px}h2{font-size:clamp(31px,4vw,48px)}h3{font-size:21px}.lead{font-size:18px;color:var(--muted-fg);max-width:760px;margin:22px 0 0}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.trust{display:flex;gap:20px;flex-wrap:wrap;margin-top:26px;color:#4b5563;font-size:13px}
.panel{border:1px solid var(--border);border-radius:10px;background:#fff;box-shadow:var(--shadow);overflow:hidden}.panel-top{height:44px;background:#fafafa;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 14px}.window-dots{display:flex;gap:7px}.window-dots i{width:9px;height:9px;border-radius:50%;background:#d1d5db}.panel-body{padding:18px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.metric{border:1px solid var(--border);border-radius:7px;padding:14px}.metric span{font-size:12px;color:var(--muted-fg)}.metric strong{display:block;font-size:22px}.lead-list{display:grid;gap:10px;margin-top:14px}.lead-row{border:1px solid var(--border);border-radius:7px;padding:12px;display:grid;grid-template-columns:1fr auto;gap:12px}.lead-row small{color:var(--muted-fg)}
.strip{padding:24px 0;border-bottom:1px solid var(--border)}.strip-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.strip-item{text-align:center;color:#6b7280;font-weight:800;font-size:13px}
.section{padding:88px 0}.section-muted{background:#fafafa;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.section-dark{background:#111827;color:#fff}.section-dark p{color:#cbd5e1}.section-head{max-width:820px;margin-bottom:40px}.section-head p{font-size:17px;color:var(--muted-fg);margin:15px 0 0}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.card{border:1px solid var(--border);border-radius:8px;background:#fff;padding:24px;box-shadow:0 1px 1px rgba(0,0,0,.02)}.card:hover{box-shadow:var(--shadow)}.card p{color:var(--muted-fg);margin:10px 0 0}.icon{width:42px;height:42px;border:1px solid var(--border);border-radius:7px;background:#fafafa;display:grid;place-items:center;font-weight:900;margin-bottom:18px}.card-link{display:inline-block;margin-top:18px;font-weight:800;font-size:14px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:58px;align-items:center}.feature-list{display:grid;gap:14px;margin-top:24px}.feature-item{display:flex;gap:12px;align-items:flex-start}.check{width:23px;height:23px;border-radius:50%;background:#111;color:#fff;display:grid;place-items:center;font-size:12px;flex:0 0 auto;margin-top:2px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--border);border-radius:8px;overflow:hidden}.stat{padding:28px;text-align:center;border-right:1px solid var(--border)}.stat:last-child{border-right:0}.stat strong{display:block;font-size:35px}.stat span{font-size:13px;color:var(--muted-fg)}
.process{display:grid;gap:0}.process-item{display:grid;grid-template-columns:80px 1fr;gap:18px}.process-left{position:relative;text-align:center}.process-left:after{content:"";position:absolute;top:36px;bottom:-10px;left:50%;width:1px;background:var(--border)}.process-item:last-child .process-left:after{display:none}.process-num{width:36px;height:36px;border-radius:50%;background:#111;color:#fff;display:grid;place-items:center;margin:auto;font-size:13px}.process-content{padding-bottom:30px}
.platform{border:1px solid var(--border);border-radius:7px;background:#fff;padding:18px;text-align:center;font-weight:800}.platform small{display:block;color:var(--muted-fg);font-weight:500;margin-top:4px}
.price-card{position:relative}.price{font-size:38px;font-weight:900;letter-spacing:-.045em;margin-top:16px}.price small{font-size:13px;color:var(--muted-fg);font-weight:600}.price-list{display:grid;gap:10px;margin:20px 0}.price-list div{font-size:14px}.featured{border:2px solid #111}.ribbon{position:absolute;right:14px;top:14px;background:#111;color:#fff;border-radius:999px;padding:4px 8px;font-size:11px}
.case-cover{height:190px;border-radius:6px;background:linear-gradient(135deg,#111827,#64748b);display:flex;align-items:end;padding:18px;color:#fff}.tags{display:flex;gap:8px;flex-wrap:wrap}.tag{display:inline-flex;border:1px solid var(--border);border-radius:999px;padding:5px 9px;background:#fafafa;color:#4b5563;font-size:12px}
.quote{font-size:17px}.person{display:flex;align-items:center;gap:12px;margin-top:22px}.avatar{width:42px;height:42px;border-radius:50%;background:#e5e7eb}.person small{display:block;color:var(--muted-fg)}
.faq{border-top:1px solid var(--border)}.faq-item{border-bottom:1px solid var(--border)}.faq-q{width:100%;border:0;background:none;padding:20px 0;display:flex;justify-content:space-between;text-align:left;font-weight:900;cursor:pointer}.faq-a{display:none;padding:0 0 20px;color:var(--muted-fg);max-width:900px}.faq-item.open .faq-a{display:block}
.cta{background:#111;color:#fff;border-radius:10px;padding:56px}.cta p{color:#d1d5db;max-width:760px}.cta .btn{background:#fff;color:#111}
.page-hero{padding:74px 0;border-bottom:1px solid var(--border);background:#fafafa}.breadcrumb{font-size:13px;color:var(--muted-fg);margin-bottom:14px}.page-hero p{font-size:18px;color:var(--muted-fg);max-width:800px}.content{max-width:900px}.content h2{font-size:32px;margin:38px 0 14px}.content h3{margin:28px 0 10px}.content p,.content li{color:#4b5563}.meta{font-size:13px;color:var(--muted-fg)}.notice{border:1px solid var(--border);border-radius:7px;background:#fafafa;padding:15px 16px;color:#4b5563;font-size:14px}
.form{display:grid;gap:14px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field label{display:block;font-size:14px;font-weight:800;margin-bottom:7px}.field input,.field select,.field textarea{width:100%;padding:12px 13px;border:1px solid var(--border);border-radius:6px;background:#fff}.field textarea{min-height:150px}
.footer{padding:58px 0 26px;border-top:1px solid var(--border);background:#fafafa}.footer-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:32px}.footer h4{margin-bottom:14px}.footer a{display:block;color:#6b7280;font-size:14px;margin:9px 0}.footer-bottom{border-top:1px solid var(--border);margin-top:36px;padding-top:20px;display:flex;justify-content:space-between;color:#6b7280;font-size:13px}
.admin-body{background:#f3f4f6;min-height:100vh}.admin-wrap{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.admin-side{background:#111827;color:#fff;padding:22px}.admin-side a{display:block;padding:10px 12px;border-radius:6px;color:#cbd5e1;margin:4px 0}.admin-side a:hover{background:#1f2937;color:#fff}.admin-main{padding:28px}.admin-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.table-wrap{overflow:auto;background:#fff;border:1px solid var(--border);border-radius:8px}.table{width:100%;border-collapse:collapse;min-width:760px}.table th,.table td{padding:13px 14px;border-bottom:1px solid var(--border);text-align:left;font-size:14px}.table th{background:#fafafa}.login-box{max-width:430px;margin:10vh auto;background:#fff;border:1px solid var(--border);border-radius:10px;padding:30px}
@media(max-width:940px){.nav-links{display:none;position:absolute;top:70px;left:16px;right:16px;background:#fff;border:1px solid var(--border);border-radius:8px;padding:18px;flex-direction:column;align-items:flex-start}.nav-links.open{display:flex}.mobile-toggle{display:inline-flex}.nav-actions .btn:first-child{display:none}.hero-grid,.split,.grid-2{grid-template-columns:1fr}.grid-3{grid-template-columns:repeat(2,1fr)}.grid-4,.grid-5{grid-template-columns:repeat(2,1fr)}.strip-grid{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--border)}.admin-wrap{grid-template-columns:1fr}.admin-side{position:static}}
@media(max-width:620px){.hero{padding:64px 0 48px}h1{font-size:42px}.section{padding:64px 0}.grid-3,.grid-4,.grid-5,.metrics,.form-row{grid-template-columns:1fr}.strip-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:8px}.stats{grid-template-columns:1fr}.stat{border-right:0;border-bottom:1px solid var(--border)}.stat:last-child{border-bottom:0}.cta{padding:36px 24px}}