@font-face {
    font-family: 'iconfont';
    src: url('../fonts/iconfont.woff2?t=1631608872177') format('woff2'),
    url('../fonts/iconfont.woff?t=1631608872177') format('woff'),
    url('../fonts/iconfont.ttf?t=1631608872177') format('truetype');
}
.ali-icon {
    font-family: "iconfont" !important;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== 全局变量与基础视觉 ========== */
:root {
    --uc-primary: #6366f1;
    --uc-primary-dark: #4f46e5;
    --uc-secondary: #8b5cf6;
    --uc-accent: #ec4899;
    --uc-success: #10b981;
    --uc-warning: #f59e0b;
    --uc-danger: #ef4444;
    --uc-bg: #f6f7fb;
    --uc-card-bg: #ffffff;
    --uc-text: #1f2937;
    --uc-muted: #6b7280;
    --uc-border: #e5e7eb;
    --uc-shadow-sm: 0 2px 6px rgba(31, 41, 55, .06);
    --uc-shadow: 0 8px 24px rgba(31, 41, 55, .08);
    --uc-shadow-lg: 0 20px 48px rgba(99, 102, 241, .18);
    --uc-radius: 14px;
    --uc-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    --uc-gradient-soft: linear-gradient(135deg, rgba(99,102,241,.08) 0%, rgba(236,72,153,.08) 100%);
}

html, body {
    background: var(--uc-bg) !important;
    color: var(--uc-text);
    scroll-behavior: smooth;
}

body {
    background-image:
        radial-gradient(circle at 10% 0%, rgba(99,102,241,.10), transparent 40%),
        radial-gradient(circle at 90% 10%, rgba(236,72,153,.10), transparent 45%),
        radial-gradient(circle at 50% 100%, rgba(139,92,246,.08), transparent 50%) !important;
    background-attachment: fixed;
    min-height: 100vh;
}

::selection {
    background: var(--uc-primary);
    color: #fff;
}

/* 滚动条美化 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--uc-primary), var(--uc-secondary));
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover { background: var(--uc-primary-dark); }

.fl { float: left; }
.fr { float: right; }

/* ========== 页面装载 ========== */
.page-wrapper {
    background-color: transparent;
}

/* ========== 顶部小条 ========== */
.header-top {
    background: rgba(255,255,255,.7);
    backdrop-filter: saturate(180%) blur(10px);
    -webkit-backdrop-filter: saturate(180%) blur(10px);
    border-bottom: 1px solid var(--uc-border);
    box-shadow: 0 -1px 3px rgba(0,0,0,.03) inset;
    font-size: 14px;
}

.header-top-right-btns {
    float: right;
    text-align: center;
    font-size: 0;
}

.header-top-right-btns .btn-group > button {
    padding: 8px 14px;
    margin: 0;
    text-align: center;
    color: var(--uc-muted);
    font-size: 14px;
    border-right: 1px solid var(--uc-border);
    border-left: 1px solid transparent;
    background: transparent;
    transition: all .25s ease;
}

.btn-group > button:hover {
    color: var(--uc-primary);
    background-color: rgba(99,102,241,.06);
    border-right-color: var(--uc-border);
}

.header-top-right-btns .btn-group:last-child > button {
    border-right-color: transparent;
}

/* ========== 主导航 (毛玻璃) ========== */
.header {
    padding: 14px 0;
    border-bottom: 1px solid rgba(229,231,235,.6);
    background: rgba(255,255,255,.85) !important;
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    box-shadow: 0 4px 16px rgba(31,41,55,.05);
    transition: box-shadow .3s ease, padding .3s ease;
}

.header.sticky-top { z-index: 1030; }

.logo img {
    height: 52px;
    transition: transform .35s ease;
    filter: drop-shadow(0 4px 10px rgba(99,102,241,.18));
}
.logo img:hover { transform: scale(1.05) rotate(-2deg); }

.navbar-brand {
    font-weight: 700;
    font-size: 1.35rem;
    background: var(--uc-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: .5px;
}

.navbar-light .navbar-nav .nav-link {
    color: var(--uc-text) !important;
    font-weight: 500;
    padding: 8px 16px !important;
    border-radius: 10px;
    margin: 0 4px;
    position: relative;
    transition: all .25s ease;
}

.navbar-light .navbar-nav .nav-link:hover {
    color: var(--uc-primary) !important;
    background: rgba(99,102,241,.08);
}

.navbar-light .navbar-nav .nav-link.active {
    color: #fff !important;
    background: var(--uc-gradient);
    box-shadow: 0 6px 16px rgba(99,102,241,.35);
}

/* 导航搜索框 */
.header form input.form-control {
    border-radius: 999px;
    padding: 8px 16px;
    border: 1px solid var(--uc-border);
    background: rgba(255,255,255,.85);
    transition: all .25s ease;
    min-width: 180px;
}
.header form input.form-control:focus {
    border-color: var(--uc-primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,.18);
    background: #fff;
}

.header form button {
    border-radius: 999px !important;
    background: var(--uc-gradient) !important;
    border: 0 !important;
    color: #fff !important;
    padding: 8px 16px;
    margin-left: 8px !important;
    transition: transform .25s ease, box-shadow .25s ease;
}
.header form button:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(99,102,241,.35);
}

/* ========== 通用卡片 ========== */
.card {
    border: 0 !important;
    border-radius: var(--uc-radius) !important;
    background: var(--uc-card-bg);
    box-shadow: var(--uc-shadow-sm);
    overflow: hidden;
    transition: transform .35s ease, box-shadow .35s ease;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--uc-shadow);
}

/* ========== 通用按钮 ========== */
.btn {
    border-radius: 10px;
    font-weight: 500;
    transition: all .25s ease;
}

.btn-primary {
    background: var(--uc-gradient) !important;
    border: 0 !important;
    box-shadow: 0 6px 14px rgba(99,102,241,.28);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 22px rgba(99,102,241,.4);
    filter: brightness(1.05);
}

.btn-success { background: linear-gradient(135deg,#10b981,#059669) !important; border:0 !important; }
.btn-warning { background: linear-gradient(135deg,#f59e0b,#d97706) !important; border:0 !important; color:#fff !important; }
.btn-danger  { background: linear-gradient(135deg,#ef4444,#dc2626) !important; border:0 !important; }

.btn-outline-secondary {
    border: 1px solid var(--uc-border);
    color: var(--uc-text);
    background: #fff;
}
.btn-outline-secondary:hover,
.btn-outline-secondary.active {
    background: var(--uc-gradient) !important;
    color: #fff !important;
    border-color: transparent !important;
    box-shadow: 0 6px 16px rgba(99,102,241,.3);
}

.btn-outline-success {
    color: #059669;
    border-color: rgba(16,185,129,.4);
    background: rgba(16,185,129,.08);
}
.btn-outline-success:hover {
    background: linear-gradient(135deg,#10b981,#059669);
    color: #fff;
}
.btn-outline-warning {
    color: #d97706;
    border-color: rgba(245,158,11,.4);
    background: rgba(245,158,11,.08);
}
.btn-outline-warning:hover {
    background: linear-gradient(135deg,#f59e0b,#d97706);
    color: #fff;
}

/* 表单控件统一圆角 */
.form-control, .form-select {
    border-radius: 10px;
    border: 1px solid var(--uc-border);
    transition: border-color .2s ease, box-shadow .2s ease;
}
.form-control:focus, .form-select:focus {
    border-color: var(--uc-primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,.15);
}

/* 徽章 */
.badge {
    border-radius: 999px;
    padding: .4em .8em;
    font-weight: 500;
    letter-spacing: .3px;
    box-shadow: 0 4px 10px rgba(0,0,0,.08);
}
.bg-success { background: linear-gradient(135deg,#10b981,#059669) !important; }
.bg-warning { background: linear-gradient(135deg,#f59e0b,#d97706) !important; color:#fff !important; }
.bg-danger  { background: linear-gradient(135deg,#ef4444,#dc2626) !important; }
.bg-info    { background: linear-gradient(135deg,#06b6d4,#0891b2) !important; }

/* ========== 公告 / Jumbotron ========== */
.notice .card {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    border: 0 !important;
    color: #fff;
    box-shadow: 0 18px 38px rgba(99,102,241,.28);
    overflow: hidden;
    position: relative;
}
.notice .card::before {
    content:"";
    position:absolute;
    inset:0;
    background:
      radial-gradient(circle at 80% 20%, rgba(255,255,255,.18), transparent 40%),
      radial-gradient(circle at 10% 100%, rgba(255,255,255,.10), transparent 50%);
    pointer-events:none;
}
.notice .card .card-body { position:relative; z-index:1; }
.notice .jumbotron h4 {
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.notice .jumbotron h4::before {
    content: "📢";
    font-size: 1.4rem;
}
.notice .jumbotron .lead {
    color: rgba(255,255,255,.92);
    font-size: 1rem;
    margin-bottom: 0;
}
.notice .jumbotron .lead a { color:#fff; text-decoration: underline; }

/* ========== 页脚 ========== */
.footer {
    background: transparent;
    margin-top: 40px;
    padding: 30px 16px !important;
    border-top: 1px solid rgba(229,231,235,.7);
    color: var(--uc-muted);
    font-size: 14px;
}
.footer .author a {
    color: var(--uc-primary);
    font-weight: 600;
    text-decoration: none;
}
.footer .author a:hover { color: var(--uc-accent); }

/* ========== 通用动画 ========== */
@keyframes uc-fade-up {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
.main-container, .notice {
    animation: uc-fade-up .55s ease both;
}

/* ========== 移动端适配 ========== */
@media (max-width: 767.98px) {
    .header { padding: 10px 0; }
    .navbar-brand { font-size: 1.1rem; }
    .header form input.form-control { min-width: 0; flex: 1; }
}