:root{--brand:#26515e;--brand-dark:#1b3a44;--brand-soft:#e8f0f2;--accent:#f3995c;--ink:#1f2d33;--muted:#6b7c83;--line:#dde5e8;--bg:#f6f8f9;--card:#fff}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",system-ui,-apple-system,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.5}
a{color:var(--brand)}
.container{max-width:1080px;margin:0 auto;padding:0 18px}

/* header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--brand)}
.brand img{height:44px;width:auto}
.brand span{font-weight:600;font-size:1.02rem;line-height:1.15}
.brand small{display:block;font-weight:400;font-size:.72rem;color:var(--muted);letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{color:var(--ink);text-decoration:none;padding:8px 13px;border-radius:8px;font-size:.93rem}
.main-nav a:hover,.main-nav a.active{background:var(--brand-soft);color:var(--brand)}
.main-nav a.login-btn{background:var(--brand);color:#fff;margin-left:8px}
.main-nav a.login-btn:hover{background:var(--brand-dark)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:1.1rem;color:var(--brand)}

/* logged-in user menu (top right) */
.user-menu{position:relative;margin-left:8px}
.user-menu>button{display:flex;align-items:center;gap:8px;background:var(--brand-soft);border:0;border-radius:999px;padding:5px 12px 5px 5px;cursor:pointer;color:var(--brand);font:inherit}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.85rem;text-transform:uppercase}
.user-menu .dropdown{display:none;position:absolute;right:0;top:calc(100% + 8px);min-width:200px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px rgba(31,45,51,.12);padding:6px}
.user-menu.open .dropdown{display:block}
.dropdown .who{padding:8px 12px;font-size:.8rem;color:var(--muted);border-bottom:1px solid var(--line);margin-bottom:4px}
.dropdown a{display:block;padding:8px 12px;border-radius:7px;color:var(--ink);text-decoration:none;font-size:.92rem}
.dropdown a:hover{background:var(--brand-soft)}

/* hero */
.hero{background:var(--brand);color:#fff;padding:64px 0 72px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.05)}
.hero h1{margin:0 0 10px;font-size:2.1rem;font-weight:600;letter-spacing:-.01em}
.hero p{margin:0 0 24px;max-width:560px;color:#cfe0e5}
.btn{display:inline-block;padding:10px 22px;border-radius:8px;text-decoration:none;font-weight:600;font-size:.93rem;border:0;cursor:pointer;font-family:inherit}
.btn-light{background:#fff;color:var(--brand)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4);margin-left:8px}

/* sections */
.section{padding:36px 0}
.section h2{margin:0 0 16px;font-size:1.2rem;font-weight:600;color:var(--brand)}
.quick{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:-34px;position:relative;z-index:2}
.tile{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;text-decoration:none;color:var(--ink);transition:.15s}
.tile:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:0 8px 20px rgba(38,81,94,.1)}
.tile .ico{width:40px;height:40px;border-radius:10px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:1.2rem;margin-bottom:12px}
.tile h3{margin:0 0 4px;font-size:1rem}
.tile p{margin:0;font-size:.86rem;color:var(--muted)}
.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:6px 20px}
.notice{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.notice:last-child{border-bottom:0}
.notice time{flex:0 0 74px;font-size:.78rem;color:var(--muted);padding-top:2px}
.notice b{display:block;font-weight:600}
.tag{display:inline-block;background:#fdeee2;color:#b5600f;font-size:.68rem;padding:1px 8px;border-radius:999px;margin-left:6px;vertical-align:middle}

/* login */
.login-wrap{min-height:calc(100vh - 68px - 70px);display:flex;align-items:center;justify-content:center;padding:30px 16px}
.login-card{width:100%;max-width:400px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:32px;box-shadow:0 10px 30px rgba(38,81,94,.08)}
.login-card .logo{text-align:center;margin-bottom:18px}
.login-card .logo img{height:64px}
.login-card h1{text-align:center;font-size:1.2rem;margin:0 0 4px;color:var(--brand)}
.login-card .sub{text-align:center;color:var(--muted);font-size:.85rem;margin:0 0 22px}
label{display:block;font-size:.82rem;font-weight:600;margin:14px 0 6px}
input[type=text],input[type=password]{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fbfcfc}
input:focus{outline:2px solid rgba(38,81,94,.25);border-color:var(--brand)}
.login-card .btn{width:100%;margin-top:22px;padding:11px}
.alert{background:#fdecea;color:#9b2c20;border-radius:8px;padding:9px 12px;font-size:.85rem;margin-bottom:6px}

.site-footer{background:var(--brand-dark);color:#a9c0c7;text-align:center;padding:20px 0;font-size:.85rem}

@media(max-width:760px){
 .nav-toggle{display:block}
 .main-nav{display:none;position:absolute;left:0;right:0;top:68px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 18px}
 .main-nav.open{display:flex}
 .main-nav a.login-btn{margin:6px 0 0;text-align:center}
 .hero h1{font-size:1.6rem}
}