:root{--ink:#17243c;--muted:#657086;--blue:#3563e9;--cyan:#38c8d9;--paper:#f5f8fc;--line:#dfe6f0}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei",system-ui,sans-serif}a{color:inherit}header{height:72px;display:flex;align-items:center;justify-content:space-between;max-width:1160px;margin:auto;padding:0 24px}.brand{text-decoration:none;font-size:22px;font-weight:900;letter-spacing:-1px}.brand span{color:var(--blue)}nav{display:flex;gap:28px}nav a{text-decoration:none;color:var(--muted);font-size:14px}main{max-width:1160px;margin:auto;padding:0 24px 80px}.hero{min-height:540px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:64px}.pill{display:inline-block;padding:8px 13px;border-radius:30px;color:var(--blue);background:#e8efff;font-size:13px;font-weight:700}.hero h1{font-size:58px;line-height:1.16;letter-spacing:-3px;margin:24px 0 18px}.hero em{font-style:normal;color:var(--blue)}.hero p{color:var(--muted);font-size:18px;line-height:1.8;max-width:560px}.actions{display:flex;gap:12px;margin-top:28px}.button{border:0;border-radius:10px;background:var(--blue);color:white!important;padding:13px 24px;text-decoration:none;font-weight:700;cursor:pointer;font-size:15px}.button.secondary{background:white;color:var(--ink)!important;border:1px solid var(--line)}.art{background:linear-gradient(135deg,#dfe8ff,#d8f8f7);border-radius:40% 56% 45% 52%;padding:55px 28px;transform:rotate(2deg)}.slide{background:#fff;min-height:285px;padding:36px;border-radius:8px;box-shadow:0 24px 60px #44618e30;transform:rotate(-4deg)}.slide b{font-size:11px;color:var(--blue);letter-spacing:2px}.slide h2{font-size:35px;margin:32px 0}.slide i{display:inline-block;width:25%;height:8px;background:#e9eef8;margin-right:5%;border-radius:10px}.slide i:nth-of-type(2){background:var(--blue)}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:80px}.features article,.stats article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px}.features b{color:var(--blue)}.features h3{margin:30px 0 8px}.features p{color:var(--muted);line-height:1.7}.panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:46px;margin:40px auto}.section-title span,.admin-head span{font-size:12px;letter-spacing:2px;color:var(--blue);font-weight:800}.section-title h2{font-size:34px;margin:8px 0}.section-title p{color:var(--muted)}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:35px}.wide{grid-column:1/-1}label{display:grid;gap:8px;font-weight:700;font-size:14px}input,select,textarea{width:100%;border:1px solid var(--line);background:#fbfcfe;border-radius:9px;padding:13px 14px;font:inherit;color:var(--ink)}textarea{resize:vertical}.upload{border:1px dashed #b7c4d8;padding:20px;border-radius:12px}.upload small{color:var(--muted);font-weight:400}.agree{display:flex;grid-template-columns:auto 1fr;align-items:center;color:var(--muted);font-weight:400}.agree input{width:auto}.process{padding:60px 0}.process ol{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.process li{display:flex;gap:14px;align-items:center}.process li b{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:#e8efff;color:var(--blue)}.process small{color:var(--muted)}.result{max-width:680px;margin:80px auto;text-align:center;background:white;border-radius:22px;padding:55px;border:1px solid var(--line)}.result code{display:block;font-size:22px;margin:18px;padding:15px;background:#f0f4fa}.result textarea{margin:20px 0}.success,.error{display:grid;place-items:center;margin:auto;width:64px;height:64px;border-radius:50%;background:#dff8ef;color:#159668;font-size:30px}.error{background:#ffeded;color:#d34b4b}.query{max-width:760px}.query form{display:flex;gap:10px}.order-card,.notice{margin-top:30px;padding:24px;background:#f5f8fc;border-radius:12px}.order-card dl,.detail dl{display:grid;grid-template-columns:130px 1fr;gap:12px}.order-card dt,.detail dt{color:var(--muted)}.order-card dd,.detail dd{margin:0}.login{max-width:480px}.login form{display:grid;gap:18px}.admin{padding-top:45px}.admin-head{display:flex;justify-content:space-between;align-items:end}.admin-head h1{font-size:38px;margin:6px 0}.admin-head form{display:flex;gap:8px}.admin-head input{width:80px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:28px 0}.stats b{display:block;font-size:34px}.stats span{color:var(--muted)}.table-wrap{overflow:auto;background:white;border:1px solid var(--line);border-radius:16px}table{border-collapse:collapse;width:100%}th,td{text-align:left;padding:16px;border-bottom:1px solid var(--line);white-space:nowrap}.detail{max-width:900px}.detail .prompt{white-space:pre-wrap;line-height:1.75}.detail form{display:flex;gap:10px;margin:20px 0}.detail hr{border:0;border-top:1px solid var(--line);margin:35px 0}footer{text-align:center;color:var(--muted);font-size:13px;padding:30px}@media(max-width:760px){header nav{display:none}.hero{grid-template-columns:1fr;min-height:auto;padding:60px 0}.hero h1{font-size:42px}.art{display:none}.features,.stats,.process ol{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.wide{grid-column:auto}.panel{padding:24px}.query form,.admin-head,.detail form{display:grid}.order-card dl,.detail dl{grid-template-columns:1fr}.order-card dd,.detail dd{margin-bottom:12px}}