/* ==========================================================
   贤才苑德育考评系统 · 全局样式
   ========================================================== */

:root{
    --brand:#4F46E5;
    --brand-2:#7C3AED;
    --brand-3:#22D3EE;
    --brand-soft:#EEF0FF;

    --ink-1:#0B1220;
    --ink-2:#131B34;

    --text-1:#0F172A;
    --text-2:#4A5468;
    --text-3:#8B94A8;

    --line:#E8EBF3;
    --bg:#F5F6FB;
    --white:#FFFFFF;

    --danger:#EF4444;
    --success:#10B981;

    --r-xl:28px;
    --r-lg:22px;
    --r-md:16px;
    --r-sm:12px;

    --sidebar-w:248px;

    --shadow-xl:0 50px 90px -40px rgba(15,23,42,.40);
    --shadow-lg:0 28px 60px -30px rgba(15,23,42,.28);
    --shadow-md:0 16px 36px -22px rgba(15,23,42,.24);
    --shadow-sm:0 6px 18px -12px rgba(15,23,42,.30);
}

*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    color:var(--text-1);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
input{font:inherit}

/* ==========================================================
   一、登录页
   ========================================================== */
.login-body{
    min-height:100vh;
    display:grid;
    place-items:center;
    padding:36px 20px;
    position:relative;
    overflow:hidden;
    background:
        radial-gradient(1100px 560px at 6% -12%, #E6E9FF 0%, transparent 62%),
        radial-gradient(900px 520px at 102% 112%, #EAE3FF 0%, transparent 60%),
        #F5F6FB;
}
.login-body::before{
    content:"";
    position:absolute;inset:0;
    background-image:
        linear-gradient(rgba(79,70,229,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79,70,229,.045) 1px, transparent 1px);
    background-size:56px 56px;
    mask-image:radial-gradient(circle at 50% 45%, #000 0%, transparent 78%);
    -webkit-mask-image:radial-gradient(circle at 50% 45%, #000 0%, transparent 78%);
    pointer-events:none;
}

.login-stage{width:100%;max-width:1080px;position:relative;z-index:1}

.login-card{
    display:grid;
    grid-template-columns:1.05fr .95fr;
    min-height:620px;
    background:#fff;
    border-radius:var(--r-xl);
    overflow:hidden;
    box-shadow:var(--shadow-xl), 0 0 0 1px rgba(255,255,255,.7) inset;
}

/* ---------- 左侧品牌区 ---------- */
.login-hero{
    position:relative;
    overflow:hidden;
    padding:46px 48px;
    color:#fff;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    background:
        radial-gradient(620px 420px at 88% -4%, rgba(124,58,237,.62), transparent 64%),
        radial-gradient(520px 380px at -4% 104%, rgba(34,211,238,.28), transparent 62%),
        linear-gradient(155deg,#171D42 0%,#0F1433 46%,#0A0F26 100%);
}
.orb{position:absolute;border-radius:50%;filter:blur(64px);pointer-events:none}
.orb-1{width:330px;height:330px;background:#5B6CFF;top:-100px;right:-80px;opacity:.55;
    animation:float1 13s ease-in-out infinite}
.orb-2{width:270px;height:270px;background:#22D3EE;bottom:-110px;left:-90px;opacity:.32;
    animation:float2 16s ease-in-out infinite}
.orb-3{width:190px;height:190px;background:#A855F7;top:46%;left:58%;opacity:.28;
    animation:float1 20s ease-in-out infinite reverse}
@keyframes float1{0%,100%{transform:translate3d(0,0,0)}50%{transform:translate3d(-20px,24px,0)}}
@keyframes float2{0%,100%{transform:translate3d(0,0,0)}50%{transform:translate3d(22px,-18px,0)}}

.brand{display:flex;align-items:center;gap:14px;position:relative;z-index:2}
.brand-logo{
    width:54px;height:54px;border-radius:17px;
    display:grid;place-items:center;font-size:23px;
    background:linear-gradient(135deg,#6366F1,#A855F7);
    box-shadow:0 14px 30px -12px rgba(124,58,237,.95), inset 0 1px 0 rgba(255,255,255,.4);
}
.brand-meta{display:flex;flex-direction:column;line-height:1.25}
.brand-meta strong{font-size:19px;letter-spacing:.08em;font-weight:700}
.brand-meta span{font-size:10px;letter-spacing:.30em;color:rgba(255,255,255,.48);margin-top:2px}

.hero-copy{position:relative;z-index:2;flex:1;display:flex;flex-direction:column;justify-content:center;padding:34px 0}
.hero-copy h1{font-size:34px;line-height:1.28;margin:0 0 16px;font-weight:700;letter-spacing:.015em}
.hero-sub{
    display:inline-block;align-self:flex-start;
    margin:0 0 18px;padding:6px 15px;border-radius:999px;
    font-size:13px;letter-spacing:.16em;
    color:#C7D2FE;background:rgba(129,140,248,.16);
    border:1px solid rgba(129,140,248,.32);
}
.hero-desc{font-size:14px;line-height:1.95;color:rgba(255,255,255,.62);margin:0}
.hero-points{list-style:none;padding:0;margin:30px 0 0;display:flex;flex-direction:column;gap:13px}
.hero-points li{display:flex;align-items:center;gap:11px;font-size:13.5px;color:rgba(255,255,255,.74)}
.hero-points i{color:#7DD3FC;font-size:13px}

.hero-foot{position:relative;z-index:2;font-size:12px;color:rgba(255,255,255,.32);letter-spacing:.06em}

/* ---------- 右侧登录区 ---------- */
.login-form-area{display:grid;place-items:center;padding:56px 52px;background:#fff}
.form-inner{width:100%;max-width:340px}

.form-head{margin-bottom:30px}
.form-head h2{font-size:26px;margin:0 0 10px;font-weight:700;letter-spacing:.01em}
.form-head p{font-size:13.5px;color:var(--text-3);margin:0}

.field{display:block;margin-bottom:18px}
.field-label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:9px}
.field-box{
    position:relative;display:flex;align-items:center;gap:11px;
    height:50px;padding:0 16px;
    background:#F6F7FC;border:1.5px solid transparent;border-radius:13px;
    transition:background .22s, border-color .22s, box-shadow .22s;
}
.field-box > i{color:var(--text-3);font-size:14px;transition:color .22s}
.field-box input{flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;
    font-size:14.5px;color:var(--text-1)}
.field-box input::placeholder{color:#AFB7C7}
.field-box:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(79,70,229,.11)}
.field-box:focus-within > i{color:var(--brand)}

.eye{padding:4px;color:var(--text-3);font-size:14px;transition:color .2s;border-radius:6px}
.eye:hover{color:var(--brand)}

.btn-login{
    width:100%;height:52px;margin-top:10px;
    display:flex;align-items:center;justify-content:center;gap:11px;
    border-radius:14px;color:#fff;font-size:15.5px;font-weight:600;letter-spacing:.14em;
    background:linear-gradient(135deg,#4F46E5 0%,#7C3AED 100%);
    box-shadow:0 18px 36px -14px rgba(79,70,229,.78);
    transition:transform .25s, box-shadow .25s;
}
.btn-login:hover{transform:translateY(-2px);box-shadow:0 26px 46px -16px rgba(79,70,229,.88)}
.btn-login:active{transform:translateY(0)}

.alert-error{
    display:flex;align-items:center;gap:10px;
    padding:12px 15px;margin-bottom:20px;border-radius:12px;
    background:#FEF2F2;border:1px solid #FEE2E2;color:#B91C1C;font-size:13.5px;
    animation:shake .42s ease;
}
@keyframes shake{
    0%,100%{transform:translateX(0)}
    20%{transform:translateX(-6px)}
    40%{transform:translateX(6px)}
    60%{transform:translateX(-4px)}
    80%{transform:translateX(4px)}
}

.form-tip{margin:26px 0 0;text-align:center;font-size:12px;color:var(--text-3);letter-spacing:.02em}

/* ==========================================================
   二、后台主框架
   ========================================================== */
.app-body{display:flex;min-height:100vh;background:var(--bg)}

/* ---------- 侧边栏 ---------- */
.sidebar{
    position:fixed;inset:0 auto 0 0;z-index:50;
    width:var(--sidebar-w);
    display:flex;flex-direction:column;
    padding:22px 16px 18px;
    color:#fff;
    background:linear-gradient(180deg,#131B34 0%,#0B1220 100%);
    border-right:1px solid rgba(255,255,255,.05);
    transition:width .28s cubic-bezier(.2,.8,.3,1), padding .28s;
    overflow:hidden;
}
.sidebar::before{
    content:"";position:absolute;top:-130px;left:-70px;
    width:280px;height:280px;border-radius:50%;pointer-events:none;
    background:radial-gradient(circle, rgba(99,102,241,.55), transparent 70%);
    filter:blur(42px);
}

.sidebar-brand{
    position:relative;z-index:2;
    display:flex;align-items:center;gap:12px;
    padding:4px 10px 20px;margin-bottom:16px;
    border-bottom:1px solid rgba(255,255,255,.07);
    white-space:nowrap;
}
.sb-logo{
    flex:0 0 auto;width:42px;height:42px;border-radius:13px;
    display:grid;place-items:center;font-size:18px;
    background:linear-gradient(135deg,#6366F1,#A855F7);
    box-shadow:0 12px 26px -12px rgba(124,58,237,.95);
}
.sb-title{display:flex;flex-direction:column;line-height:1.32}
.sb-title strong{font-size:16px;letter-spacing:.09em}
.sb-title span{font-size:10.5px;letter-spacing:.13em;color:rgba(255,255,255,.42);margin-top:2px}

.sidebar-nav{
    position:relative;z-index:2;flex:1;
    display:flex;flex-direction:column;gap:4px;
    overflow-y:auto;padding-right:2px;
}
.sidebar-nav::-webkit-scrollbar{width:0}

.nav-item{
    position:relative;
    display:flex;align-items:center;gap:12px;
    padding:11px 14px;border-radius:12px;
    font-size:14px;color:rgba(255,255,255,.60);
    white-space:nowrap;
    transition:color .2s, background .2s;
}
.nav-item i{flex:0 0 18px;width:18px;text-align:center;font-size:15px;transition:color .2s}
.nav-item:hover{color:#fff;background:rgba(255,255,255,.065)}
.nav-item.active{
    color:#fff;font-weight:600;
    background:linear-gradient(90deg, rgba(99,102,241,.36), rgba(99,102,241,.05));
    box-shadow:inset 0 0 0 1px rgba(129,140,248,.22);
}
.nav-item.active i{color:#A5B4FC}
.nav-item.active::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:3px;height:18px;border-radius:0 3px 3px 0;
    background:linear-gradient(180deg,#818CF8,#C084FC);
    box-shadow:0 0 12px rgba(129,140,248,.95);
}

.sidebar-foot{
    position:relative;z-index:2;
    display:flex;flex-direction:column;gap:4px;
    padding-top:14px;margin-top:14px;
    border-top:1px solid rgba(255,255,255,.07);
}
.nav-btn{width:100%;text-align:left}
.nav-item-danger:hover{background:rgba(239,68,68,.16);color:#FCA5A5}
.nav-item-danger i{color:#F87171}

/* 侧边栏收起态（桌面端） */
body.sidebar-collapsed .sidebar{width:84px;padding-left:12px;padding-right:12px}
body.sidebar-collapsed .sb-title,
body.sidebar-collapsed .nav-item span{display:none}
body.sidebar-collapsed .sidebar-brand{justify-content:center;padding-left:0;padding-right:0}
body.sidebar-collapsed .nav-item{justify-content:center;padding:12px}
body.sidebar-collapsed .main{margin-left:84px}

/* ---------- 主区域 ---------- */
.main{
    flex:1;min-width:0;
    margin-left:var(--sidebar-w);
    display:flex;flex-direction:column;
    transition:margin-left .28s cubic-bezier(.2,.8,.3,1);
}

.topbar{
    position:sticky;top:0;z-index:30;
    height:72px;
    display:flex;align-items:center;justify-content:space-between;
    padding:0 32px;
    background:rgba(255,255,255,.80);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
}
.topbar-left{display:flex;align-items:center;gap:16px}
.icon-btn{
    width:38px;height:38px;border-radius:11px;
    display:grid;place-items:center;color:var(--text-2);font-size:15px;
    background:#fff;border:1px solid var(--line);
    transition:.2s;
}
.icon-btn:hover{color:var(--brand);border-color:#C7CBFF;background:var(--brand-soft)}

.crumb{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--text-3)}
.crumb i{color:var(--brand);font-size:12px}
.crumb em{font-style:normal;opacity:.45}
.crumb strong{color:var(--text-1);font-weight:600}

.admin-chip{
    display:flex;align-items:center;gap:11px;
    padding:6px 16px 6px 6px;border-radius:999px;
    background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.avatar{
    width:36px;height:36px;border-radius:50%;
    display:grid;place-items:center;font-size:14px;font-weight:700;color:#fff;
    background:linear-gradient(135deg,#6366F1,#A855F7);
    box-shadow:0 6px 14px -6px rgba(124,58,237,.9);
}
.admin-meta{display:flex;flex-direction:column;line-height:1.28}
.admin-meta strong{font-size:13px}
.admin-meta span{font-size:11px;color:var(--text-3)}

.page{flex:1;padding:28px 32px 44px}

/* ==========================================================
   三、首页欢迎横幅 & 快捷卡片
   ========================================================== */
.welcome-banner{
    position:relative;overflow:hidden;
    border-radius:24px;padding:42px 46px;
    color:#fff;
    background:
        radial-gradient(720px 420px at 92% 6%, rgba(168,85,247,.55), transparent 62%),
        radial-gradient(520px 320px at 0% 106%, rgba(34,211,238,.28), transparent 66%),
        linear-gradient(135deg,#1B2150 0%,#121738 55%,#0C1129 100%);
    box-shadow:0 38px 72px -36px rgba(23,25,74,.75);
}
.wb-orb{position:absolute;border-radius:50%;filter:blur(56px);pointer-events:none}
.wb-orb-1{width:300px;height:300px;background:#6366F1;top:-120px;right:-60px;opacity:.5;
    animation:float1 15s ease-in-out infinite}
.wb-orb-2{width:220px;height:220px;background:#22D3EE;bottom:-120px;left:24%;opacity:.24;
    animation:float2 18s ease-in-out infinite}
.wb-content{position:relative;z-index:2;max-width:640px}
.wb-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    margin:0 0 16px;padding:6px 14px;border-radius:999px;
    font-size:12.5px;letter-spacing:.05em;color:#C7D2FE;
    background:rgba(129,140,248,.16);border:1px solid rgba(129,140,248,.30);
}
.welcome-banner h1{font-size:29px;line-height:1.34;margin:0 0 14px;font-weight:700;letter-spacing:.012em}
.wb-desc{margin:0;font-size:14px;line-height:1.9;color:rgba(255,255,255,.66)}
.wb-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.wb-btn{
    display:inline-flex;align-items:center;gap:9px;
    padding:11px 22px;border-radius:12px;
    font-size:13.5px;font-weight:600;color:#1B2150;
    background:#fff;
    box-shadow:0 12px 26px -14px rgba(0,0,0,.6);
    transition:.24s;
}
.wb-btn:hover{transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(0,0,0,.7)}
.wb-btn.ghost{
    color:#fff;background:rgba(255,255,255,.10);
    border:1px solid rgba(255,255,255,.22);
    box-shadow:none;backdrop-filter:blur(6px);
}
.wb-btn.ghost:hover{background:rgba(255,255,255,.18)}

.quick-grid{
    display:grid;gap:16px;margin-top:22px;
    grid-template-columns:repeat(auto-fill, minmax(230px, 1fr));
}
.quick-card{
    position:relative;overflow:hidden;
    display:flex;align-items:center;gap:14px;
    padding:20px 22px;border-radius:18px;
    background:#fff;border:1px solid var(--line);
    box-shadow:var(--shadow-sm);
    transition:transform .24s, box-shadow .24s, border-color .24s;
}
.quick-card::after{
    content:"";position:absolute;right:-40px;top:-40px;
    width:110px;height:110px;border-radius:50%;
    background:radial-gradient(circle, rgba(99,102,241,.14), transparent 70%);
    transition:.3s;
}
.quick-card:hover{
    transform:translateY(-4px);
    border-color:#D6D9FF;
    box-shadow:0 24px 44px -26px rgba(79,70,229,.55);
}
.quick-card:hover::after{transform:scale(1.4)}
.qc-icon{
    flex:0 0 44px;width:44px;height:44px;border-radius:13px;
    display:grid;place-items:center;font-size:17px;color:#4F46E5;
    background:linear-gradient(135deg,#EEF0FF,#E7E4FF);
}
.qc-label{flex:1;font-size:14.5px;font-weight:600;color:var(--text-1)}
.qc-arrow{color:#C7CCDA;font-size:12px;transition:.24s}
.quick-card:hover .qc-arrow{color:var(--brand);transform:translateX(4px)}

/* ==========================================================
   四、通用面板 & 占位页
   ========================================================== */
.panel{
    background:#fff;border:1px solid var(--line);
    border-radius:20px;box-shadow:var(--shadow-sm);
    padding:28px;
}
.placeholder-panel{
    min-height:480px;
    display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:16px;text-align:center;
}
.ph-icon{
    width:88px;height:88px;border-radius:26px;
    display:grid;place-items:center;font-size:31px;color:#fff;
    background:linear-gradient(135deg,#6366F1,#A855F7);
    box-shadow:0 26px 50px -22px rgba(124,58,237,.85);
    animation:float1 6s ease-in-out infinite;
}
.placeholder-panel h2{margin:6px 0 0;font-size:21px;font-weight:700}
.placeholder-panel p{margin:0;font-size:14px;color:var(--text-3);max-width:420px;line-height:1.9}
.ph-badge{
    display:inline-block;margin-top:6px;padding:6px 16px;border-radius:999px;
    font-size:12.5px;letter-spacing:.05em;color:#4F46E5;
    background:var(--brand-soft);border:1px solid #DDE1FF;
}

/* ==========================================================
   五、修改密码弹窗
   ========================================================== */
.modal-mask{
    position:fixed;inset:0;z-index:999;
    display:grid;place-items:center;padding:20px;
    background:rgba(11,18,32,.55);
    backdrop-filter:blur(6px);
    -webkit-backdrop-filter:blur(6px);
    opacity:0;visibility:hidden;
    transition:opacity .26s, visibility .26s;
}
.modal-mask.open{opacity:1;visibility:visible}

.modal-card{
    width:100%;max-width:440px;
    background:#fff;border-radius:22px;overflow:hidden;
    box-shadow:var(--shadow-xl);
    transform:translateY(18px) scale(.97);
    transition:transform .3s cubic-bezier(.2,.8,.3,1);
}
.modal-mask.open .modal-card{transform:none}

.modal-head{
    display:flex;align-items:center;justify-content:space-between;
    padding:22px 26px;border-bottom:1px solid var(--line);
}
.modal-head h3{margin:0;font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px}
.modal-head h3 i{color:var(--brand);font-size:15px}
.modal-close{
    width:34px;height:34px;border-radius:10px;
    display:grid;place-items:center;color:var(--text-3);font-size:15px;
    transition:.2s;
}
.modal-close:hover{background:#F3F4F9;color:var(--text-1)}

.modal-body{padding:24px 26px 6px}
.modal-foot{
    display:flex;justify-content:flex-end;gap:12px;
    padding:18px 26px 24px;
}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 24px;border-radius:12px;
    font-size:14px;font-weight:600;transition:.22s;
}
.btn-ghost{color:var(--text-2);background:#F4F5FA;border:1px solid var(--line)}
.btn-ghost:hover{background:#ECEEF6;color:var(--text-1)}
.btn-primary{
    color:#fff;background:linear-gradient(135deg,#4F46E5,#7C3AED);
    box-shadow:0 14px 28px -14px rgba(79,70,229,.8);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 18px 34px -16px rgba(79,70,229,.9)}

.form-msg{min-height:20px;font-size:13px;margin:2px 0 8px}
.form-msg.error{color:var(--danger)}

/* ==========================================================
   六、Toast 提示
   ========================================================== */
.toast{
    position:fixed;left:50%;bottom:42px;z-index:1200;
    display:flex;align-items:center;gap:10px;
    padding:13px 24px;border-radius:14px;
    background:#0F172A;color:#fff;font-size:14px;
    box-shadow:0 22px 44px -18px rgba(15,23,42,.85);
    opacity:0;visibility:hidden;
    transform:translate(-50%, 18px);
    transition:opacity .28s, transform .28s, visibility .28s;
}
.toast.show{opacity:1;visibility:visible;transform:translate(-50%, 0)}
.toast.success i{color:#34D399}
.toast.error i{color:#F87171}

/* ==========================================================
   七、响应式
   ========================================================== */
.sidebar-backdrop{
    position:fixed;inset:0;z-index:45;
    background:rgba(11,18,32,.52);
    backdrop-filter:blur(2px);
    opacity:0;visibility:hidden;transition:.28s;
}

@media (max-width: 1080px){
    .login-card{grid-template-columns:1fr;min-height:auto}
    .login-hero{display:none}
    .login-form-area{padding:52px 40px}
}

@media (max-width: 900px){
    .sidebar{transform:translateX(-100%);width:var(--sidebar-w);padding-left:16px;padding-right:16px}
    body.nav-open .sidebar{transform:none}
    body.nav-open .sidebar-backdrop{opacity:1;visibility:visible}
    body.sidebar-collapsed .sidebar{width:var(--sidebar-w);padding-left:16px;padding-right:16px}
    body.sidebar-collapsed .sb-title,
    body.sidebar-collapsed .nav-item span{display:block}
    body.sidebar-collapsed .nav-item{justify-content:flex-start;padding:11px 14px}
    .main,
    body.sidebar-collapsed .main{margin-left:0}
    .topbar{padding:0 18px}
    .page{padding:20px 18px 36px}
    .welcome-banner{padding:32px 26px}
    .welcome-banner h1{font-size:22px}
    .crumb span,.crumb em{display:none}
    .admin-meta{display:none}
    .admin-chip{padding:5px}
}

@media (max-width: 520px){
    .login-body{padding:16px}
    .login-form-area{padding:40px 24px}
    .quick-grid{grid-template-columns:1fr}
    .wb-actions{flex-direction:column;align-items:stretch}
    .wb-btn{justify-content:center}
}