:root{--bg:#070b14;--bg2:#0b1120;--card:#0e1626;--line:rgba(120,160,255,.12);--tx:#e8eefc;--tx2:#9aa9c7;--tx3:#5d6b8a;--ac:#4f7cff;--ac2:#8b5cf6;--neon:#34e0a1;--grad:linear-gradient(120deg,#4f7cff,#8b5cf6 55%,#34e0a1)}*{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg);color:var(--tx);font-family:PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;overflow-x:hidden;line-height:1.7}a{color:inherit;text-decoration:none}.wrap{max-width:1200px;margin:0 auto;padding:0 24px}.tag{display:inline-block;padding:5px 14px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--tx2);background:#4f7cff0f;letter-spacing:1px}h2.sec{font-size:clamp(26px,3.6vw,40px);font-weight:800;line-height:1.3;margin:18px 0 14px}h2.sec em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}p.sub{color:var(--tx2);max-width:640px;font-size:16px}section{padding:96px 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18px;border-radius:50%;display:grid;place-items:center;font-size:22px;font-weight:900;border:1px solid var(--line);background:var(--card);color:var(--ac);position:relative;z-index:2}.step h4{font-size:17px;margin-bottom:8px}.step p{color:var(--tx3);font-size:13.5px}.step:after{content:"";position:absolute;top:31px;left:calc(50% + 44px);width:calc(100% - 88px);height:1px;background:linear-gradient(90deg,var(--ac),transparent)}.step:last-child:after{display:none}@media(max-width:860px){.step:after{display:none}}.form-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:32px 30px}.form-card h3{margin-bottom:6px;font-size:20px}.form-card .tip{color:var(--tx3);font-size:13px;margin-bottom:22px}.f-row{margin-bottom:16px}.f-row input,.f-row textarea,.f-row select{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:13px 15px;color:var(--tx);font-size:15px;font-family:inherit;transition:border-color .2s}.f-row input:focus,.f-row 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h3{font-size:clamp(22px,3vw,32px);font-weight:800;margin-bottom:12px}.cta-band p{color:var(--tx2);margin-bottom:28px}footer{border-top:1px solid var(--line);padding:40px 0 30px;background:var(--bg2)}.foot-in{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}.foot-in .col{font-size:13.5px;color:var(--tx3)}.foot-in .col b{color:var(--tx2);display:block;margin-bottom:10px;font-size:14px}.foot-in .col a:hover{color:var(--tx)}.beian{margin-top:30px;padding-top:20px;border-top:1px solid var(--line);text-align:center;color:var(--tx3);font-size:12.5px}.beian a{color:var(--tx3)}.beian a:hover{color:var(--tx)}