*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --orange:#F97316;--orange2:#FBBF24;--dark:#B45309;--soft:#FFF7ED;--mid:#FED7AA;
  --bg:#F5F6FA;--card:#fff;--border:#E5E7EB;--border2:#CBD5E1;
  --text:#111827;--sub:#4B5563;--muted:#9CA3AF;--green:#16A34A;--red:#DC2626;--blue:#2563EB;
  --radius:14px;--big:22px;
}
body{font-family:'Segoe UI',system-ui,Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;font-size:15px;line-height:1.65}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font-family:inherit}
.nav{height:66px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:99;box-shadow:0 1px 8px rgba(0,0,0,.06)}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{width:43px;height:43px;border-radius:50%;background:linear-gradient(135deg,var(--orange),var(--orange2));padding:3px;display:grid;place-items:center}
.brand-logo img{width:100%;height:100%;object-fit:contain}
.brand b{display:block;font-size:15px;line-height:1.2}.brand span{display:block;font-size:11px;color:var(--sub)}
.nav-links{display:flex;gap:8px;align-items:center}
.nav-links a{padding:7px 14px;border:1.5px solid var(--border2);border-radius:12px;font-size:13px;font-weight:700;color:var(--sub);background:#fff}
.nav-links a.active,.nav-links a:hover{border-color:transparent;background:linear-gradient(135deg,var(--orange),var(--orange2));color:white;box-shadow:0 2px 10px rgba(249,115,22,.25)}
.hero{background:linear-gradient(135deg,var(--orange) 0%,#FB923C 40%,#FCD34D 100%);text-align:center;padding:56px 18px 50px}
.hero-inner{max-width:640px;margin:auto}
.hero-logo{width:98px;height:98px;border-radius:50%;margin:0 auto 18px;background:rgba(255,255,255,.24);border:3px solid rgba(255,255,255,.72);padding:7px;display:grid;place-items:center}
.hero-logo img{width:100%;height:100%;object-fit:contain}
.school{font-size:12px;font-weight:800;letter-spacing:.12em;color:rgba(255,255,255,.92);text-transform:uppercase;margin-bottom:8px}
h1{font-size:clamp(28px,6vw,42px);line-height:1.1;color:#fff;margin-bottom:12px;letter-spacing:-.6px}
.hero-desc{font-size:15px;color:rgba(255,255,255,.94);margin:0 auto 26px;max-width:590px}
.btn{border:0;border-radius:999px;padding:12px 26px;font-size:15px;font-weight:800;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none}
.btn-white{background:#fff;color:var(--dark);box-shadow:0 4px 16px rgba(0,0,0,.15)}
.btn-main{background:linear-gradient(135deg,var(--orange),var(--orange2));color:#fff;box-shadow:0 3px 12px rgba(249,115,22,.25)}
.btn-sec{background:#fff;color:var(--sub);border:1.5px solid var(--border2)}
.btn-danger{background:#FEF2F2;color:var(--red);border:1.5px solid #FECACA}
.full{width:100%}
.wrap{max-width:780px;margin:0 auto;padding:36px 16px 60px}
.box{background:var(--card);border:1.5px solid var(--border);border-radius:var(--big);padding:25px;margin-bottom:18px;box-shadow:0 2px 12px rgba(0,0,0,.045)}
.box h2{font-size:20px;margin-bottom:10px}.box p{color:var(--sub);font-size:14px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(165px,1fr));gap:12px;margin-bottom:18px}
.info{background:#fff;border:1.5px solid var(--border);border-radius:var(--big);padding:20px 14px;text-align:center;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.info .ic{font-size:31px;margin-bottom:8px}.info b{display:block;margin-bottom:5px}.info span{font-size:12.5px;color:var(--sub)}
.rules{background:linear-gradient(135deg,#FFF7ED,#FFFBEB);border:1.5px solid var(--mid)}
.rule{display:flex;gap:12px;margin:12px 0;color:var(--sub);font-size:13.5px}
.num{min-width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--orange),var(--orange2));color:#fff;font-size:12px;font-weight:900;display:grid;place-items:center}
.cta{text-align:center;background:linear-gradient(135deg,var(--orange),#FB923C 42%,#FCD34D);color:white}.cta h2{color:white}.cta p{color:rgba(255,255,255,.9);margin-bottom:18px}
.label{font-size:11px;font-weight:800;color:var(--muted);letter-spacing:.09em;text-transform:uppercase;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.label::after{content:'';flex:1;border-top:1.5px solid var(--border)}
.page-title{font-size:24px;font-weight:850;margin-bottom:4px}.page-sub{font-size:14px;color:var(--sub);margin-bottom:20px}
.org-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(105px,1fr));gap:10px;margin-bottom:20px}
.org-card{background:#fff;border:1.5px solid var(--border);border-radius:18px;padding:15px 8px 12px;text-align:center;cursor:pointer;transition:.14s}
.org-card:hover,.org-card.sel{border-color:var(--orange);background:var(--soft);transform:translateY(-2px);box-shadow:0 4px 12px rgba(249,115,22,.13)}
.org-card .oic{font-size:24px;margin-bottom:6px}.org-card .onm{font-size:12px;font-weight:750;color:var(--sub);line-height:1.3}.org-card.sel .onm{color:var(--dark)}
.form-box{display:none}.form-box.show{display:block}
.form-title{font-size:17px;font-weight:850;margin-bottom:16px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.badge{background:var(--soft);color:var(--dark);border:1px solid var(--mid);padding:3px 11px;border-radius:999px;font-size:12px}
.fg{margin-bottom:15px}.fg label{display:block;font-size:13px;font-weight:750;color:var(--sub);margin-bottom:6px}
input,select,textarea{width:100%;border:1.5px solid var(--border2);border-radius:13px;background:#FAFBFC;color:var(--text);font-size:14px;padding:11px 14px;outline:none}
textarea{min-height:122px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(249,115,22,.12)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.chips{display:flex;gap:7px;flex-wrap:wrap}.chip{border:1.5px solid var(--border2);background:#fff;color:var(--sub);border-radius:999px;padding:6px 14px;font-size:12px;font-weight:650;cursor:pointer}.chip.on{border-color:var(--orange);background:var(--soft);color:var(--dark)}
.hint{display:flex;gap:7px;font-size:12px;color:var(--muted);margin-bottom:14px}.hint::before{content:'ℹ️'}
.upload-area{position:relative;border:2px dashed var(--border2);border-radius:18px;padding:22px;text-align:center;background:#FAFBFC;cursor:pointer;transition:.15s}
.upload-area:hover{border-color:var(--orange);background:var(--soft)}
.upload-area input{position:absolute;inset:0;opacity:0;cursor:pointer;height:100%}
.upload-icon{font-size:34px;margin-bottom:8px}.upload-text{font-size:13.5px;font-weight:800;color:var(--sub)}.upload-sub{font-size:12px;color:var(--muted)}
.file-info{font-size:12px;color:var(--sub);margin-top:8px;line-height:1.55}
.preview{display:grid;grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:8px;margin-top:10px}
.prev-item{border:1.5px solid var(--border);border-radius:13px;background:#fff;padding:7px;position:relative;overflow:hidden;min-height:88px}
.prev-item img,.prev-item video{width:100%;height:72px;object-fit:cover;border-radius:9px;background:#111}
.prev-name{font-size:10px;color:var(--sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:4px}
.del-file{position:absolute;top:4px;right:4px;border:0;background:rgba(220,38,38,.92);color:#fff;border-radius:50%;width:22px;height:22px;cursor:pointer;font-size:12px}
.success{display:none;background:#F0FDF4;border:1.5px solid #BBF7D0;border-radius:18px;padding:18px;text-align:center;margin-top:14px}.success.show{display:block}.success h3{color:var(--green);font-size:16px}.success p{color:#166534;font-size:13px;margin:5px 0 14px}
.adm-hero{background:linear-gradient(135deg,var(--orange),#FB923C 42%,#FCD34D);border-radius:22px;padding:28px;text-align:center;margin-bottom:20px;color:white}
.adm-hero img{width:76px;height:76px;object-fit:contain;margin-bottom:10px}.adm-hero h1{font-size:23px;margin:0 0 5px}.adm-hero p{color:rgba(255,255,255,.9);font-size:13.5px}
.adm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:10px}.adm-btn{background:#fff;border:1.5px solid var(--border);border-radius:18px;padding:17px 10px 15px;text-align:center;cursor:pointer;box-shadow:0 1px 5px rgba(0,0,0,.04)}.adm-btn:hover{border-color:var(--orange);background:var(--soft);transform:translateY(-2px)}.adm-btn .ic{font-size:24px;margin-bottom:6px}.adm-btn .nm{font-size:12.5px;font-weight:750;color:var(--sub)}
.modal-bg{display:none;position:fixed;inset:0;background:rgba(10,20,40,.46);z-index:200;align-items:center;justify-content:center;padding:18px;backdrop-filter:blur(4px)}.modal-bg.show{display:flex}.modal{width:370px;max-width:100%;background:white;border-radius:22px;padding:24px;box-shadow:0 14px 40px rgba(0,0,0,.18);text-align:center}.modal img{width:62px;height:62px;object-fit:contain;margin-bottom:8px}.modal h2{font-size:18px;margin-bottom:3px}.modal p{font-size:13px;color:var(--sub);margin-bottom:14px}.modal-row{display:flex;gap:8px;margin-top:12px}.err{display:none;color:var(--red);font-size:12px;margin-top:8px}.err.show{display:block}
.inbox-head{display:flex;gap:10px;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap}.org-badge{background:var(--soft);border:1.5px solid var(--mid);color:var(--dark);border-radius:999px;padding:8px 15px;font-weight:850}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}.stat{background:white;border:1.5px solid var(--border);border-radius:14px;padding:13px;text-align:center}.stat b{font-size:24px;display:block;color:var(--orange)}.stat span{font-size:11px;color:var(--muted)}
.toolbar{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}.toolbar input{flex:1;min-width:180px;border-radius:999px}.toolbar select{max-width:210px;border-radius:999px}
.msg-list{display:flex;flex-direction:column;gap:12px}.mcard{background:white;border:1.5px solid var(--border);border-radius:18px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.045)}.mtop{padding:15px 18px 10px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.sender{font-weight:850}.pill{display:inline-block;background:var(--soft);color:var(--dark);border:1px solid var(--mid);border-radius:999px;padding:2px 9px;font-size:11px;font-weight:750;margin:3px 3px 0 0}.time{font-size:12px;color:var(--muted)}.mbody{padding:14px 18px;white-space:pre-wrap;font-size:14px;color:var(--text)}
.attach-view{padding:0 18px 14px;display:flex;gap:8px;flex-wrap:wrap}.attach-view img,.attach-view video{width:86px;height:72px;object-fit:cover;border-radius:10px;border:1px solid var(--border);background:#111}.mfoot{padding:10px 18px;background:#FAFBFC;border-top:1px solid var(--border);display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.empty{text-align:center;padding:35px 16px;border:1.5px dashed var(--border2);border-radius:18px;color:var(--muted);background:white}.hidden{display:none!important}
@media(max-width:620px){.nav{padding:0 12px}.brand span{display:none}.nav-links a{padding:7px 9px}.grid-3,.stats{grid-template-columns:1fr 1fr}.row{grid-template-columns:1fr}.hero{padding-top:40px}.modal-row{flex-direction:column}}