:root {
    /* 核心配色：深邃蓝与商务灰 */
    --bg-top: #fcfdfe;
    --bg-bottom: #f0f4f9;
    --bg-glow-a: rgba(100, 180, 255, 0.12);
    --bg-glow-b: rgba(120, 140, 240, 0.08);

    /* 玻璃质感：优化性能，降低模糊开销 */
    --glass-shell: rgba(255, 255, 255, 0.45);
    --glass-card: rgba(255, 255, 255, 0.82);
    --glass-strong: rgba(255, 255, 255, 0.96);

    /* 简化阴影：使用更高效的单层/双层阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-premium: 0 12px 32px -4px rgba(0, 0, 0, 0.08);
    --shadow-button: 0 4px 6px rgba(0, 0, 0, 0.08);

    /* 描边系统 */
    --border-soft: rgba(255, 255, 255, 0.65);
    --border-subtle: rgba(200, 215, 235, 0.5);
    --line-soft: rgba(174, 192, 216, 0.35);

    /* 品牌色优化 */
    --primary-900: #1a5a96;
    --primary-700: #2b7bc0;
    --primary-500: #7fb8e8;
    --accent-700: #0ea5b9;
    --accent-500: #6ee7f7;

    /* 文字颜色 */
    --text-main: #0f172a;
    --text-sub: #475569;
    --text-soft: #64748b;

    /* 状态色 */
    --danger: #dc2626;
    --success: #16a34a;
    --warning: #ca8a04;

    /* 圆角与布局 */
    --radius-2xl: 32px;
    --radius-xl: 24px;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --content-width: min(1200px, 94vw);
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.28;
    background-image: var(--noise-image);
    background-size: 172px 172px, 214px 214px, 194px 194px, 236px 236px;
    mix-blend-mode: soft-light;
    z-index: 0;
}

.site-shell,
.dashboard-app {
    position: relative;
    z-index: 1;
}

.glass-card,
.stat-card,
.chart-card,
.dash-table-wrap,
.focus-card,
.entry-panel,
.entry-card,
.hero-card,
.ai-card,
.news-card {
    position: relative;
    border: 1px solid var(--border-soft);
    background:
        linear-gradient(var(--glass-card), var(--glass-card)) padding-box,
        linear-gradient(180deg, rgba(255,255,255,0.5), rgba(255,255,255,0.1)) border-box;
    box-shadow: var(--shadow-premium);
    backdrop-filter: blur(18px) saturate(140%);
    will-change: transform, backdrop-filter;
}

.glass-card::after,
.stat-card::after,
.chart-card::after,
.dash-table-wrap::after,
.focus-card::after,
.entry-panel::after,
.entry-card::after,
.hero-card::after,
.ai-card::after,
.news-card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent 40%);
    opacity: 0.8;
}

.section-eyebrow,
.nav-section-label,
.kicker {
    letter-spacing: 0.08em;
}

.btn-primary,
.btn-dash,
.btn-outline-primary,
.btn-dash-outline,
.btn-light,
.logout-btn,
.dashboard-link a,
.nav-item-link,
.danger-news-item,
.soft-table tbody tr,
.dash-table tbody tr,
.module-card,
.summary-item,
.mini-stat,
.identity-option {
    transition: all 0.25s var(--ease-out-expo);
}

.btn-primary:hover,
.btn-dash:hover,
.dashboard-link a:hover,
.logout-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    filter: brightness(1.1);
}

.btn-primary:active,
.btn-dash:active,
.logout-btn:active {
    transform: scale(0.95);
    filter: brightness(0.9);
}

/* 按钮内部质感：增加一条极细的高光线 */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    pointer-events: none;
}

.nav-item-link:hover,
.dash-table tbody tr:hover,
.soft-table tbody tr:hover,
.danger-news-item:hover {
    transform: translateX(2px);
}

.nav-item-link::after,
.dash-table tbody tr::before,
.soft-table tbody tr::before,
.danger-news-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 14%;
    bottom: 14%;
    width: 3px;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--accent-700), var(--primary-700));
    transform: scaleY(0.32);
    transform-origin: center;
    opacity: 0;
    transition: transform 0.18s var(--ease-standard), opacity 0.18s var(--ease-standard);
}

.nav-item-link:hover::after,
.dash-table tbody tr:hover::before,
.soft-table tbody tr:hover::before,
.danger-news-item:hover::before {
    transform: scaleY(1);
    opacity: 1;
}

.nav-item-link,
.dash-table tbody tr,
.soft-table tbody tr,
.danger-news-item {
    position: relative;
}

.stat-value {
    font-weight: 700 !important;
    letter-spacing: -0.02em;
}

.topbar-title,
.entry-title,
.questionnaire-title,
.hero-title,
.form-title {
    font-weight: 700 !important;
    letter-spacing: -0.015em;
}

.pill,
.section-eyebrow {
    backdrop-filter: blur(16px);
}

.chart-shell {
    position: relative;
}

.chart-skeleton {
    position: absolute;
    inset: 0;
    border-radius: 18px;
    border: 1px solid rgba(255,255,255,0.62);
    background:
        linear-gradient(110deg, rgba(255,255,255,0.08) 28%, rgba(255,255,255,0.64) 42%, rgba(255,255,255,0.08) 58%),
        linear-gradient(180deg, rgba(255,255,255,0.46), rgba(245,249,255,0.74));
    background-size: 220% 100%, 100% 100%;
    animation: chart-skeleton 1.5s linear infinite;
    pointer-events: none;
}

.chart-skeleton::before {
    content: "";
    position: absolute;
    left: 7%;
    right: 7%;
    bottom: 18%;
    height: 32%;
    border-radius: 22px 22px 14px 14px;
    background: linear-gradient(180deg, rgba(50,151,235,0.12), rgba(50,151,235,0.03));
    clip-path: polygon(0 90%, 13% 72%, 28% 78%, 43% 50%, 57% 58%, 71% 22%, 84% 34%, 100% 0, 100% 100%, 0 100%);
}

.chart-skeleton::after {
    content: attr(data-label);
    position: absolute;
    left: 20px;
    right: 20px;
    top: 18px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-soft);
    letter-spacing: 0.04em;
}

.chart-shell.is-ready .chart-skeleton {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.24s var(--ease-standard), visibility 0.24s var(--ease-standard);
}

.table-panel-strong {
    background:
        linear-gradient(rgba(255,255,255,0.82), rgba(255,255,255,0.76)) padding-box,
        linear-gradient(180deg, rgba(255,255,255,0.88), rgba(184,206,232,0.42)) border-box;
}

.table-viewport {
    overflow: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(116, 140, 169, 0.46) transparent;
}

.table-viewport::-webkit-scrollbar {
    height: 10px;
    width: 10px;
}

.table-viewport::-webkit-scrollbar-thumb {
    background: rgba(116, 140, 169, 0.4);
    border-radius: 999px;
}

.dash-table,
.soft-table {
    table-layout: fixed;
}

.dash-table thead th,
.soft-table thead th {
    color: #657892 !important;
    font-size: 11px !important;
    font-weight: 800 !important;
    letter-spacing: 0.06em !important;
    background: rgba(237, 244, 252, 0.96) !important;
}

.dash-table td,
.soft-table td {
    color: #24364f !important;
    line-height: 1.65;
}

.dash-table tbody tr:hover,
.soft-table tbody tr:hover {
    background: rgba(246, 250, 255, 0.96) !important;
}

.table-cell-tight {
    width: 88px;
}

.table-cell-sm {
    width: 120px;
}

.table-cell-md {
    width: 160px;
}

.table-cell-lg {
    width: 220px;
}

.table-cell-xl {
    width: 320px;
}

.cell-title {
    font-weight: 700;
    color: #22324a;
    line-height: 1.55;
    word-break: break-word;
}

.cell-subtitle {
    margin-top: 4px;
    font-size: 12px;
    color: #74859c;
    line-height: 1.55;
    word-break: break-word;
}

.cell-wrap {
    white-space: normal;
    word-break: break-word;
}

.cell-clamp-2,
.cell-clamp-3 {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
}

.cell-clamp-2 {
    -webkit-line-clamp: 2;
}

.cell-clamp-3 {
    -webkit-line-clamp: 3;
}

.accent-ring {
    box-shadow: 0 0 0 1px rgba(8,179,201,0.14), 0 18px 40px rgba(8,179,201,0.1);
}

.focus-mode .site-topbar,
.focus-mode .site-footer {
    opacity: 0.72;
}

.focus-progress {
    margin-bottom: 16px;
    padding: 16px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm);
}

.focus-progress-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-sub);
}

.focus-progress-bar {
    height: 10px;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(15, 23, 42, 0.05);
    position: relative;
}

.focus-progress-value {
    height: 100%;
    border-radius: inherit;
    width: 0;
    background: linear-gradient(90deg, var(--accent-700), var(--primary-700));
    box-shadow: 0 0 12px rgba(14, 165, 185, 0.2);
    transition: width 0.6s var(--ease-out-expo);
    position: relative;
}

.focus-progress-value::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    from { transform: translateX(-100%); }
    to { transform: translateX(100%); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s var(--ease-out-expo) both;
}

@media (max-width: 768px) {
    :root {
        --content-width: min(100%, calc(100vw - 20px));
    }
}