:root{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:#182a3a;background:#f5f8fc;font-synthesis:none;--blue:#143b65;--line:#d9e3ef}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}a{color:#225c9e;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #74a8de;outline-offset:3px}[hidden]{display:none!important}
.masthead{display:flex;gap:12px;align-items:center;padding:20px clamp(20px,5vw,64px);border-bottom:1px solid var(--line);font-size:17px;font-weight:600;background:white}.brand-mark{display:grid;place-items:center;width:35px;height:35px;border-radius:9px;background:var(--blue);color:white;font-size:20px}.masthead button{margin-left:auto;border:0;background:none;color:var(--blue);min-height:44px;padding:8px}
main{max-width:1060px;padding:0 32px;margin:auto}.intro{padding:54px 0 34px}h1{font-size:clamp(30px,4.5vw,46px);line-height:1.28;font-weight:650;letter-spacing:-.5px;margin:0 0 18px;color:var(--blue)}h2{font-size:23px;line-height:1.4;margin:0 0 10px}p{line-height:1.8;color:#506578;margin:0}.intro p{font-size:18px}.mobile-break{display:none}
.login-panel{display:grid;grid-template-columns:1fr 1fr;gap:52px;background:white;padding:36px;border:1px solid var(--line);border-radius:14px}.login-panel>div{padding-top:10px;max-width:330px}.login-panel form{display:grid;gap:9px}.login-panel label{font-weight:600;margin-top:5px}.login-panel input{width:100%;font-size:16px;min-height:48px;border:1px solid #b6c8dc;border-radius:7px;padding:11px 12px}.primary{min-height:50px;border:0;border-radius:7px;color:white;background:var(--blue);font-weight:600;padding:12px 18px}#error,#load-error{color:#9c3538;font-size:15px;line-height:1.6}#error:empty{display:none}
.section-title{display:flex;gap:25px;align-items:flex-start;justify-content:space-between;margin:8px 0 25px}.section-title p{font-size:15px;max-width:550px}fieldset{border:0;padding:0;margin:0;min-width:230px}legend{font-size:14px;color:#506578;padding:0;margin-bottom:8px}.devices{display:flex;gap:4px;border:1px solid var(--line);padding:3px;border-radius:8px;background:white}.devices button{flex:1;border:0;border-radius:5px;background:white;color:#506578;min-height:42px;padding:8px 10px;font-size:15px;white-space:nowrap}.devices button[aria-pressed=true]{background:#e6effa;color:var(--blue);font-weight:600}
.projects{display:grid;grid-template-columns:1fr 1fr;gap:20px}.project{background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden}.project-content{padding:25px}.project h3{font-size:23px;line-height:1.4;margin:0 0 11px}.project p{min-height:56px;font-size:16px}.project .try{display:block;color:white;border-radius:6px;min-height:48px;text-align:center;padding:13px;font-weight:600;margin-top:20px}.project .detail{margin-top:15px;font-size:14px;color:#506578;border-top:1px solid #e4ebf4;padding-top:13px}.project.weiguang h3{color:#286044}.project.weiguang .try{background:#286044}.project.chiying h3{color:#176283}.project.chiying .try{background:#176283}.project.qingzhi h3{color:#875119}.project.qingzhi .try{background:#875119}.project.naoan h3{color:#665284}.project.naoan .try{background:#665284}
footer{padding:35px 0;font-size:13px;line-height:1.8;color:#61778d}
@media(max-width:767px){main{padding:0 20px}.masthead{padding:12px 20px}.intro{padding:32px 0 27px}.mobile-break{display:initial}.intro p{font-size:16px}.login-panel{display:block;padding:23px;gap:0}.login-panel>div{padding:0 0 18px}.login-panel h2{font-size:21px}.section-title{display:block}.section-title fieldset{margin-top:20px;max-width:300px}.projects{grid-template-columns:1fr;gap:16px}.project-content{padding:22px}.project p{min-height:0}.project .detail{line-height:1.7}h1{font-size:32px;line-height:1.35}footer{padding:26px 0}}
@media(max-width:359px){main{padding:0 15px}.masthead{padding:10px 15px}.login-panel{padding:19px}h1{font-size:28px}.project-content{padding:20px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}