*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Noto Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:#0f172a;background:#ffffff}a{color:inherit;text-decoration:none}h1,h2{margin:0 0 12px 0}h2{font-size:22px}.muted{color:#64748b}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace}
.container{max-width:1080px;margin:0 auto;padding:0 20px}
.header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid #e2e8f0}
.header__inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand__title{font-weight:700;font-size:16px}.brand__sub{font-size:12px;color:#64748b;margin-top:2px}
.nav{display:flex;gap:14px}.nav a{font-size:14px;color:#334155;padding:8px 10px;border-radius:10px}.nav a:hover{background:#f1f5f9}
.hero{padding:44px 0;background:linear-gradient(180deg,#f8fafc 0,#ffffff 100%);border-bottom:1px solid #e2e8f0}
.hero__inner{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
.hero__actions{display:flex;gap:12px;margin-top:18px}
.section{padding:40px 0}.section--alt{background:#f8fafc;border-top:1px solid #e2e8f0;border-bottom:1px solid #e2e8f0}
.grid{display:grid;gap:14px;margin-top:16px}.grid--3{grid-template-columns:repeat(3,1fr)}.grid--4{grid-template-columns:repeat(4,1fr)}
.card{border:1px solid #e2e8f0;border-radius:16px;padding:16px;background:#fff;box-shadow:0 1px 0 rgba(15,23,42,.02)}.card__title{font-weight:650;margin-bottom:6px}
.card--accent{background:linear-gradient(180deg,#ffffff 0,#f8fafc 100%);border-color:#cbd5e1}
.kv{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed #e2e8f0}.kv:last-child{border-bottom:none}.kv__k{color:#64748b;font-size:13px}.kv__v{font-size:13px;color:#0f172a}
.btn{appearance:none;border:1px solid #cbd5e1;background:#fff;color:#0f172a;border-radius:12px;padding:10px 14px;font-size:14px;cursor:pointer}.btn:hover{background:#f8fafc}.btn:disabled{opacity:.55;cursor:not-allowed}
.btn--primary{border-color:#2563eb;background:#2563eb;color:#fff}.btn--primary:hover{background:#1d4ed8}
.btn--pay{width:100%}
.pricing-card{display:flex;flex-direction:column;gap:10px}
.price{font-size:22px;font-weight:750}.price small{font-size:12px;color:#64748b;font-weight:600}
.badge{display:inline-flex;align-items:center;gap:6px;border:1px solid #e2e8f0;background:#f8fafc;color:#334155;border-radius:999px;padding:4px 10px;font-size:12px;width:max-content}
.steps{margin:10px 0 0 18px;color:#334155}.steps li{margin:6px 0}
.callout{margin-top:14px;border:1px solid #e2e8f0;background:#f8fafc;border-radius:14px;padding:14px}.callout__title{font-weight:700;margin-bottom:6px}
.footer{padding:18px 0}.footer__inner{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #e2e8f0;padding-top:16px}
.modal{position:fixed;inset:0;display:none}.modal[aria-hidden="false"]{display:block}
.modal__backdrop{position:absolute;inset:0;background:rgba(15,23,42,.42)}
.modal__panel{position:relative;max-width:720px;margin:6vh auto;background:#fff;border-radius:18px;border:1px solid #e2e8f0;box-shadow:0 20px 60px rgba(15,23,42,.18);overflow:hidden}
.modal__header{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid #e2e8f0}
.modal__title{font-weight:750}
.modal__body{padding:16px}
.iconbtn{border:none;background:transparent;font-size:20px;cursor:pointer;color:#334155;padding:6px 10px;border-radius:10px}.iconbtn:hover{background:#f1f5f9}
.row{display:flex;align-items:center;gap:12px;padding:8px 0}.row__label{width:74px;color:#64748b;font-size:13px}.row__value{color:#0f172a;font-size:13px;flex:1}
.divider{height:1px;background:#e2e8f0;margin:12px 0}
.pay{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.keybox{margin-top:10px}
.textarea{width:100%;border:1px solid #cbd5e1;border-radius:12px;padding:10px 12px;font-size:13px;resize:vertical}
.keybox__actions{display:flex;gap:10px;margin-top:10px}
.pre{border:1px solid #e2e8f0;background:#0b1220;color:#e5e7eb;border-radius:12px;padding:12px;overflow:auto;min-height:66px;margin:12px 0 0 0}
.shots{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px}
.shot{display:block;border:1px solid #e2e8f0;border-radius:16px;overflow:hidden;background:#fff;box-shadow:0 10px 30px rgba(15,23,42,.06)}
.shot img{display:block;width:100%;height:auto}
.split{display:grid;grid-template-columns:320px 1fr;gap:14px;margin-top:14px}
.panel{border:1px solid #e2e8f0;border-radius:16px;background:#fff;overflow:hidden}
.panel__head{padding:12px 14px;border-bottom:1px solid #e2e8f0;display:flex;align-items:center;justify-content:space-between}
.panel__title{font-weight:750}
.list{max-height:70vh;overflow:auto}
.item{padding:10px 14px;border-bottom:1px solid #f1f5f9;cursor:pointer}
.item:hover{background:#f8fafc}
.item--active{background:#eff6ff}
.item__title{font-weight:650;color:#0f172a}
.item__meta{font-size:12px;color:#64748b;margin-top:4px}
.frame{width:100%;height:70vh;border:0;display:block}
.toolbar{display:flex;gap:10px;align-items:center}
.input{width:100%;border:1px solid #cbd5e1;border-radius:12px;padding:10px 12px;font-size:13px}
@media (max-width: 900px){.hero__inner{grid-template-columns:1fr}.grid--4{grid-template-columns:repeat(2,1fr)}.grid--3{grid-template-columns:1fr}}