:root{--navy:#071f2c;--navy2:#0d3041;--panel:#10384b;--panel2:#16475c;--line:rgba(228,241,238,.14);--text:#edf6f2;--muted:#9bb4bd;--lime:#d8f05a;--orange:#ff714f;--green:#65d49a;--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:radial-gradient(900px 500px at 0 -10%,rgba(216,240,90,.09),transparent 65%),radial-gradient(850px 600px at 110% 20%,rgba(255,113,79,.07),transparent 60%),var(--navy);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.hidden{display:none!important}
.topbar{height:72px;padding:0 max(24px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:rgba(7,31,44,.88);backdrop-filter:blur(16px);position:sticky;top:0;z-index:20}.brand{display:flex;gap:11px;align-items:center}.brand-mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;color:var(--navy);background:var(--lime);font-weight:900;transform:skew(-5deg)}.brand b,.brand small{display:block}.brand small{color:var(--muted);font-size:10px;letter-spacing:.12em}nav{display:flex;gap:8px}nav a{color:var(--muted);padding:9px 14px;border-radius:99px;font-size:14px}nav a.active{background:rgba(216,240,90,.12);color:var(--lime)}
.account-button,.link-button{border:0;background:transparent;color:var(--muted);cursor:pointer;padding:9px 10px}.account-button{color:var(--text);border:1px solid var(--line);border-radius:99px}.link-button:hover,.account-button:hover{color:var(--lime)}
.login-screen{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(700px 500px at 50% 0,rgba(216,240,90,.1),transparent 65%)}.login-card{width:min(390px,100%);padding:34px;background:linear-gradient(145deg,rgba(22,71,92,.96),rgba(13,48,65,.98));border:1px solid var(--line);border-radius:20px;box-shadow:0 30px 90px rgba(0,0,0,.3)}.login-card .brand-mark{margin-bottom:28px}.login-card h1{margin:10px 0 8px}.login-card p{color:var(--muted);line-height:1.6;margin:0 0 24px}.login-card label{display:block;margin:14px 0}.login-card .primary{margin-top:18px}
main{max-width:1180px;margin:auto;padding:0 24px 72px}.hero{min-height:460px;display:grid;grid-template-columns:1.45fr .75fr;gap:64px;align-items:center}.eyebrow{color:var(--lime);font-size:12px;letter-spacing:.18em;font-weight:800}.hero h1{font-size:clamp(40px,6vw,72px);line-height:1.06;margin:14px 0 24px;letter-spacing:-.04em}.hero h1 em{color:var(--lime);font-style:normal}.hero>div>p{color:var(--muted);max-width:680px;line-height:1.8}
.milestone-card,.panel{background:linear-gradient(145deg,rgba(22,71,92,.88),rgba(13,48,65,.92));border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 24px 70px rgba(0,0,0,.2)}.milestone-card{padding:28px;transform:rotate(1deg)}.milestone-card>span{color:var(--muted);font-size:12px;letter-spacing:.14em}.milestone-card strong{display:block;font-size:24px;margin:7px 0 20px}.milestone-card ul{margin:0;padding:0;list-style:none}.milestone-card li{padding:10px 0;border-top:1px solid var(--line);color:var(--muted)}.milestone-card li:before{content:"○";margin-right:10px}.milestone-card li.done{color:var(--text)}.milestone-card li.done:before{content:"✓";color:var(--green)}
.workspace{display:grid;grid-template-columns:1.55fr .75fr;gap:20px;align-items:start}.panel{padding:28px}.section-head,.section-title{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.section-head h2,.section-title h2{margin:7px 0 0;font-size:24px}.step{color:var(--lime);font-size:11px;letter-spacing:.13em;font-weight:800}.privacy{color:var(--muted);font-size:11px;padding:6px 10px;border:1px solid var(--line);border-radius:99px}fieldset{border:0;padding:0;margin:30px 0}legend{font-weight:700;margin-bottom:16px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.compact{margin-top:16px}label{color:var(--muted);font-size:13px;line-height:1.5}input,select,textarea{width:100%;margin-top:7px;padding:12px 13px;color:var(--text);background:rgba(7,31,44,.65);border:1px solid var(--line);border-radius:10px;outline:0}textarea{min-height:92px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:var(--lime)}
.dropzone{min-height:180px;border:1px dashed rgba(216,240,90,.4);border-radius:14px;background:rgba(7,31,44,.38);display:flex;flex-direction:column;gap:5px;align-items:center;justify-content:center;cursor:pointer;text-align:center;padding:20px}.dropzone.dragging{border-color:var(--lime);background:rgba(216,240,90,.06)}.dropzone input{display:none}.dropzone strong{color:var(--text);font-size:16px}.upload-icon{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;color:var(--navy);background:var(--lime);font-size:25px}.video-preview{margin-top:12px;border-radius:12px;overflow:hidden;background:#000}.video-preview video{width:100%;max-height:320px;display:block}.check-list{display:grid;gap:10px;margin-top:18px}.check-list label{display:flex;align-items:flex-start;gap:9px;color:var(--text)}.check-list input{width:auto;margin:2px 0 0;accent-color:var(--lime)}
.demo-guide{margin-top:24px;padding:18px;border:1px solid rgba(216,240,90,.28);border-radius:14px;background:rgba(7,31,44,.42)}.demo-guide-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:13px}.demo-guide-head h3{margin:5px 0 0;font-size:18px}.demo-guide-head>span{color:var(--muted);font-size:11px;padding:5px 9px;border:1px solid var(--line);border-radius:99px}.demo-guide video{display:block;width:100%;aspect-ratio:16/9;background:#02090d;border-radius:11px}.demo-guide p{color:var(--muted);font-size:12px;line-height:1.65;margin:12px 0 0}
.action-filming{margin:0 0 15px;padding:12px 14px;color:var(--lime);font-size:12px;line-height:1.65;border-left:3px solid var(--lime);background:rgba(216,240,90,.06);border-radius:0 9px 9px 0}
.primary,.secondary,.danger{border:0;cursor:pointer;border-radius:11px;font-weight:800}.primary{width:100%;padding:15px 18px;display:flex;justify-content:space-between;color:var(--navy);background:var(--lime)}.primary:disabled{opacity:.55}.secondary{color:var(--text);background:var(--panel2);border:1px solid var(--line);padding:10px 15px}.danger{color:#ffc5b6;background:transparent;border:1px solid rgba(255,113,79,.35);padding:8px 11px}.upload-progress{display:grid;gap:9px;margin:14px 0;padding:13px;border:1px solid rgba(216,240,90,.28);border-radius:11px;background:rgba(216,240,90,.06)}.upload-progress div{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px}.upload-progress b{color:var(--lime)}.upload-progress meter{width:100%;height:10px}.upload-progress meter::-webkit-meter-bar{background:rgba(7,31,44,.8);border:1px solid var(--line);border-radius:99px}.upload-progress meter::-webkit-meter-optimum-value{background:var(--lime);border-radius:99px}.error-box{color:#ffd2c8;background:rgba(255,113,79,.1);border:1px solid rgba(255,113,79,.32);padding:12px;margin:12px 0;border-radius:10px}
.camera-visual{height:210px;margin:24px 0;position:relative;border-radius:13px;background:rgba(7,31,44,.5);overflow:hidden}.court-line{position:absolute;left:10%;right:10%;bottom:36px;height:1px;background:rgba(255,255,255,.26)}.person{position:absolute;font-size:55px;left:20%;bottom:36px;transform:rotate(-12deg)}.camera{position:absolute;right:16%;bottom:52px;font-size:27px;color:var(--lime);text-align:center}.camera span{display:block;color:var(--muted);font-size:10px;margin-top:5px}.distance{position:absolute;bottom:13px;left:39%;color:var(--muted);font-size:11px;border-top:1px dashed var(--muted);width:35%;text-align:center}.guide-list{list-style:none;padding:0;margin:0;counter-reset:g}.guide-list li{display:grid;grid-template-columns:28px 1fr;padding:13px 0;border-bottom:1px solid var(--line);counter-increment:g}.guide-list li:before{content:"0" counter(g);color:var(--lime);font-size:11px;padding-top:3px}.guide-list b,.guide-list span{grid-column:2}.guide-list span{color:var(--muted);margin-top:4px;font-size:12px}.truth-note{margin-top:22px;padding:16px;border-left:3px solid var(--orange);background:rgba(255,113,79,.07)}.truth-note p{color:var(--muted);margin:7px 0 0;font-size:12px;line-height:1.7}
.results-section{padding-top:72px}.empty-records{margin-top:22px;color:var(--muted);padding:30px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius)}.records{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}.record{padding:18px;background:var(--panel);border:1px solid var(--line);border-radius:13px;cursor:pointer}.record:hover{border-color:rgba(216,240,90,.5);transform:translateY(-2px)}.record time,.record small{color:var(--muted);font-size:11px}.record h3{margin:9px 0;font-size:16px}.status{display:inline-flex;padding:5px 9px;border-radius:99px;font-size:11px}.status.passed{color:#9de7bf;background:rgba(101,212,154,.11)}.status.needs_reshoot{color:#ffc5b6;background:rgba(255,113,79,.11)}
.owner-tag{display:block!important;color:var(--lime)!important;margin-top:9px}.account-panel{margin:0 0 20px}.account-layout{display:grid;grid-template-columns:.65fr 1.35fr;gap:34px;margin-top:24px}.student-form{display:grid;gap:10px;padding-right:30px;border-right:1px solid var(--line)}.student-form h3,.account-layout h3{margin:0 0 8px}.student-list{display:grid;gap:9px}.student-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:13px;border:1px solid var(--line);border-radius:11px}.student-row b,.student-row small{display:block}.student-row small{color:var(--muted);margin-top:5px}.student-row.inactive{opacity:.52}.empty-mini{color:var(--muted);padding:20px;border:1px dashed var(--line);border-radius:11px}.assign-control{display:block;max-width:420px;margin:18px 0}.assign-control select{margin-top:6px}
.profile-panel{margin:0 0 20px}.profile-body{margin-top:22px}.profile-summary{display:grid;grid-template-columns:1.2fr 1.2fr .6fr;gap:10px}.profile-summary>div,.score-card,.weekly-grid section{padding:15px;border:1px solid var(--line);border-radius:12px;background:rgba(7,31,44,.32)}.profile-summary span,.score-card span{display:block;color:var(--muted);font-size:12px}.profile-summary strong,.score-card strong{display:block;margin-top:7px;color:var(--text);font-size:18px}.score-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:12px}.score-card strong{font-size:25px;color:var(--lime)}.score-card small{color:var(--muted)}.score-card.pending strong{color:var(--muted);font-size:18px}.weekly-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}.weekly-grid h3{margin:0 0 12px;font-size:16px}.weekly-item{padding:12px 0;border-top:1px solid var(--line)}.weekly-item:first-of-type{border-top:0}.weekly-item b,.weekly-item span,.weekly-item small{display:block}.weekly-item span,.weekly-item small{color:var(--muted);font-size:12px;margin-top:5px;line-height:1.55}.score-editor{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:14px 0}.coach-review form{display:grid;gap:12px}
dialog{color:var(--text);background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px;width:min(390px,calc(100% - 40px));box-shadow:0 30px 100px #000}dialog::backdrop{background:rgba(2,14,21,.75);backdrop-filter:blur(4px)}dialog h3{margin-top:0}dialog label{display:block;margin:14px 0}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}
.report{margin-top:20px;padding:26px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line)}.report-head{display:flex;justify-content:space-between;gap:16px}.report h3{margin:0 0 6px}.report p{color:var(--muted)}.quality-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin:20px 0}.quality-item{padding:13px;border-radius:10px;border:1px solid var(--line)}.quality-item b,.quality-item span,.quality-item small{display:block}.quality-item span{margin:5px 0;font-size:13px}.quality-item small{color:var(--muted)}.quality-item.pass b:before{content:"✓ ";color:var(--green)}.quality-item.fail b:before{content:"! ";color:var(--orange)}.phases{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin-top:18px}.phase{text-align:center;padding:11px 5px;color:var(--muted);background:rgba(7,31,44,.45);border-radius:8px;font-size:11px}.phase b{color:var(--text);display:block;margin-bottom:5px}footer{text-align:center;color:var(--muted);border-top:1px solid var(--line);padding:28px;font-size:11px}
.status.queued,.status.processing{color:#ffdfa0;background:rgba(255,202,91,.12)}.status.completed{color:#9de7bf;background:rgba(101,212,154,.11)}.status.failed{color:#ffc5b6;background:rgba(255,113,79,.11)}
.report-section{margin-top:28px}.report-section h4{font-size:17px;margin:0 0 13px}.vision-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}.metric-card{padding:14px;border:1px solid var(--line);border-radius:11px;background:rgba(7,31,44,.32)}.metric-card b,.metric-card small{display:block}.metric-card strong{display:block;color:var(--lime);font-size:22px;margin:7px 0}.metric-card small{color:var(--muted);line-height:1.5}.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.evidence-card{margin:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:rgba(7,31,44,.4)}.evidence-card img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover}.evidence-card figcaption{padding:11px}.evidence-card b,.evidence-card span{display:block}.evidence-card span{color:var(--muted);font-size:11px;margin-top:4px}.advice-list{display:grid;gap:10px}.advice-card{padding:16px;border-left:3px solid var(--lime);background:rgba(216,240,90,.05);border-radius:0 11px 11px 0}.advice-card b,.advice-card span,.advice-card small{display:block}.advice-card span{color:var(--muted);font-size:12px;margin:7px 0}.advice-card small{line-height:1.6}.analysis-progress{padding:22px;text-align:center;border:1px dashed var(--line);border-radius:12px;margin-top:20px}.analysis-progress i{display:inline-block;width:12px;height:12px;border-radius:50%;background:var(--lime);animation:pulse 1s infinite alternate;margin-right:8px}@keyframes pulse{to{opacity:.25;transform:scale(.75)}}
.reference-compare{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-top:12px}.reference-compare figure{margin:0;background:rgba(7,31,44,.32);border:1px solid var(--line);border-radius:10px;padding:8px}.reference-compare img{display:block;width:100%;height:190px;object-fit:contain;background:#071f2c;border-radius:7px}.reference-compare figcaption{display:flex;flex-direction:column;gap:2px;padding:7px 2px 2px;font-size:12px;color:var(--muted)}.reference-compare b{color:var(--text)}
.feedback-fab{position:fixed;right:22px;bottom:22px;z-index:10;border:1px solid rgba(216,240,90,.45);background:var(--lime);color:#10202a;border-radius:999px;padding:12px 18px;font-weight:800;box-shadow:0 12px 34px rgba(0,0,0,.35);cursor:pointer}.feedback-admin-panel{margin-bottom:20px}.feedback-list{display:grid;gap:10px;margin-top:18px}.feedback-item{display:grid;grid-template-columns:1fr 180px;gap:16px;padding:15px;border:1px solid var(--line);border-radius:12px;background:rgba(7,31,44,.28)}.feedback-item time,.feedback-item small{display:block;color:var(--muted);font-size:11px;margin-top:5px}.feedback-item h3{margin:5px 0 8px;font-size:15px}.feedback-item p{margin:0;color:var(--text);line-height:1.65}.feedback-item label{align-self:start}#feedbackDialog textarea{min-height:130px;resize:vertical}
.inline-manager{display:block;margin-top:8px;max-width:310px}.inline-manager select{margin-top:4px}
@media(max-width:900px){.hero,.workspace,.account-layout,.profile-summary,.weekly-grid,.feedback-item{grid-template-columns:1fr}.hero{padding:70px 0;min-height:auto;gap:30px}.milestone-card{transform:none}.records{grid-template-columns:1fr 1fr}.vision-metrics,.score-grid{grid-template-columns:repeat(2,1fr)}.evidence-grid{grid-template-columns:repeat(2,1fr)}.student-form{border-right:0;border-bottom:1px solid var(--line);padding:0 0 24px}}@media(max-width:620px){main{padding-inline:15px}.topbar{height:auto;min-height:72px;padding:10px 15px}.brand small,nav>a{display:none}.account-button{max-width:130px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.form-grid,.quality-grid,.vision-metrics,.evidence-grid,.score-grid,.score-editor{grid-template-columns:1fr}.records{grid-template-columns:1fr}.panel{padding:20px}.privacy{display:none}.phases{grid-template-columns:repeat(4,1fr)}.student-row{align-items:flex-start;flex-direction:column}.feedback-fab{right:14px;bottom:14px}}