*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.8;
    min-height: 100vh;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    font-size: var(--text-base);
    font-feature-settings: "kern" 1, "liga" 1;
    -webkit-font-kerning: normal;
    font-kerning: normal;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-title);
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    position: relative;
}

h1 { 
    font-size: var(--text-4xl); 
    font-weight: 700; 
    letter-spacing: 0.05em;
}

h2 { 
    font-size: var(--text-3xl); 
    font-weight: 600; 
    letter-spacing: 0.04em;
    position: relative;
    padding-left: 16px;
}

h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background: var(--primary-gradient);
    border-radius: 2px;
}

h3 { 
    font-size: var(--text-2xl); 
    font-weight: 600; 
    letter-spacing: 0.03em;
}

h4 { 
    font-size: var(--text-xl); 
    font-weight: 600; 
    letter-spacing: 0.02em;
}

h5 { 
    font-size: var(--text-lg); 
    font-weight: 600; 
}

h6 { 
    font-size: var(--text-base); 
    font-weight: 600; 
}

/* 标题装饰 — 左右花纹 */
.title-ornament {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-align: center;
}

.title-ornament::before,
.title-ornament::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-300), transparent);
}

.title-ornament.left::before {
    flex: none;
    width: 60px;
    background: linear-gradient(90deg, var(--primary-500), var(--primary-300), transparent);
}

.title-ornament.right::after {
    flex: none;
    width: 60px;
    background: linear-gradient(90deg, transparent, var(--primary-300), var(--primary-500));
}

/* 首字下沉 */
.drop-cap::first-letter {
    font-family: var(--font-title);
    font-size: 3em;
    font-weight: 700;
    float: left;
    line-height: 1;
    margin-right: 8px;
    margin-top: 4px;
    color: var(--primary);
    background: var(--primary-gradient-soft);
    padding: 8px 12px;
    border-radius: 8px;
}

/* 竖排文字 */
.vertical-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: 0.2em;
}

/* 引用样式 */
blockquote {
    position: relative;
    padding: var(--space-lg) var(--space-xl);
    margin: var(--space-lg) 0;
    background: var(--surface-warm);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-family: var(--font-title);
    font-size: 1.05rem;
    line-height: 2;
    color: var(--text-secondary);
}

blockquote::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 12px;
    font-family: var(--font-title);
    font-size: 3rem;
    color: var(--primary-300);
    line-height: 1;
}

/* 文字强调 */
.text-underline-deco {
    text-decoration: none;
    background-image: linear-gradient(120deg, var(--primary-300) 0%, var(--primary-500) 100%);
    background-repeat: no-repeat;
    background-size: 100% 2px;
    background-position: 0 90%;
    padding-bottom: 2px;
}

.text-gradient-gold {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 印章文字 */
.text-seal {
    font-family: var(--font-title);
    color: var(--accent-cinnabar);
    font-weight: 700;
    letter-spacing: 0.1em;
}

::selection {
    background-color: var(--primary-light);
    color: var(--primary-darker);
}

a {
    color: var(--primary-dark);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

a:hover {
    color: var(--primary);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
    font-size: inherit;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

input::placeholder,
textarea::placeholder {
    color: var(--text-hint);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

hr {
    border: none;
    border-top: 1px solid var(--divider);
    margin: var(--space-6) 0;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-dark);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* 文字工具类 */
.text-muted { color: var(--text-muted) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-primary { color: var(--text-primary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-info { color: var(--info) !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.font-mono { font-family: var(--font-mono); }
.font-title { font-family: var(--font-title); }
.font-display { font-family: var(--font-display); }
.fw-bold { font-weight: 700; }
.fw-semibold { font-weight: 600; }
.fw-medium { font-weight: 500; }
.fw-normal { font-weight: 400; }
.fw-light { font-weight: 300; }

.leading-tight { line-height: 1.25; }
.leading-snug { line-height: 1.4; }
.leading-normal { line-height: 1.7; }
.leading-relaxed { line-height: 1.8; }

.tracking-tight { letter-spacing: -0.02em; }
.tracking-normal { letter-spacing: 0; }
.tracking-wide { letter-spacing: 0.05em; }
.tracking-wider { letter-spacing: 0.1em; }

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 间距工具类 */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

.ml-1 { margin-left: var(--space-1); }
.ml-2 { margin-left: var(--space-2); }
.ml-4 { margin-left: var(--space-4); }
.ml-sm { margin-left: var(--space-sm); }
.ml-md { margin-left: var(--space-md); }

.mr-1 { margin-right: var(--space-1); }
.mr-2 { margin-right: var(--space-2); }
.mr-4 { margin-right: var(--space-4); }
.mr-sm { margin-right: var(--space-sm); }
.mr-md { margin-right: var(--space-md); }

.mx-auto { margin-left: auto; margin-right: auto; }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }

.px-2 { padding-left: var(--space-2); padding-right: var(--space-2); }
.px-3 { padding-left: var(--space-3); padding-right: var(--space-3); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }

.py-1 { padding-top: var(--space-1); padding-bottom: var(--space-1); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }

.gap-0 { gap: 0; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }

/* 显示工具类 */
.hidden { display: none !important; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.inline-grid { display: inline-grid; }
.block { display: block; }
.inline-block { display: inline-block; }

.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-col-reverse { flex-direction: column-reverse; }
.flex-row-reverse { flex-direction: row-reverse; }

.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }
.items-baseline { align-items: baseline; }

.justify-center { justify-content: center; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }

.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.flex-wrap-reverse { flex-wrap: wrap-reverse; }

.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-none { flex: none; }
.grow { flex-grow: 1; }
.grow-0 { flex-grow: 0; }
.shrink { flex-shrink: 1; }
.shrink-0 { flex-shrink: 0; }

.self-center { align-self: center; }
.self-start { align-self: flex-start; }
.self-end { align-self: flex-end; }

.order-first { order: -1; }
.order-last { order: 999; }
.order-1 { order: 1; }
.order-2 { order: 2; }
.order-3 { order: 3; }

/* 宽度 */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-fit { width: fit-content; }
.w-max { width: max-content; }
.w-min { width: min-content; }

.min-w-0 { min-width: 0; }
.max-w-full { max-width: 100%; }
.max-w-screen { max-width: var(--content-max-width); }

/* 高度 */
.h-full { height: 100%; }
.h-auto { height: auto; }
.h-screen { height: 100vh; }
.h-dvh { height: 100dvh; }
.min-h-screen { min-height: 100vh; }
.min-h-0 { min-height: 0; }

/* 定位 */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

.inset-0 { inset: 0; }
.top-0 { top: 0; }
.left-0 { left: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }

.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-50 { z-index: 50; }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-scroll { overflow: scroll; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* 其他 */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }
.cursor-text { cursor: text; }
.cursor-move { cursor: move; }

.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

.select-none { user-select: none; }
.select-text { user-select: text; }
.select-all { user-select: all; }

.visibility-hidden { visibility: hidden; }
.visibility-visible { visibility: visible; }

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* 圆角 */
.rounded-none { border-radius: 0; }
.rounded-xs { border-radius: var(--radius-xs); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* 边框 */
.border-0 { border-width: 0; }
.border { border-width: 1px; }
.border-2 { border-width: 2px; }

.border-solid { border-style: solid; }
.border-dashed { border-style: dashed; }
.border-dotted { border-style: dotted; }

.border { border-color: var(--border); }
.border-light { border-color: var(--border-light); }
.border-dark { border-color: var(--border-dark); }
.border-primary { border-color: var(--primary); }
.border-success { border-color: var(--success); }
.border-warning { border-color: var(--warning); }
.border-danger { border-color: var(--danger); }

.border-t { border-top: 1px solid var(--border); }
.border-b { border-bottom: 1px solid var(--border); }
.border-l { border-left: 1px solid var(--border); }
.border-r { border-right: 1px solid var(--border); }

/* 背景 */
.bg-transparent { background-color: transparent; }
.bg-surface { background-color: var(--surface); }
.bg-surface-alt { background-color: var(--surface-alt); }
.bg-surface-warm { background-color: var(--surface-warm); }
.bg-bg { background-color: var(--bg); }
.bg-bg-warm { background-color: var(--bg-warm); }
.bg-primary { background-color: var(--primary); }
.bg-primary-light { background-color: var(--primary-light); }
.bg-primary-lighter { background-color: var(--primary-lighter); }
.bg-success { background-color: var(--success); }
.bg-success-light { background-color: var(--success-light); }
.bg-warning { background-color: var(--warning); }
.bg-warning-light { background-color: var(--warning-light); }
.bg-danger { background-color: var(--danger); }
.bg-danger-light { background-color: var(--danger-light); }
.bg-info { background-color: var(--info); }
.bg-info-light { background-color: var(--info-light); }

/* 过渡动画 */
.transition-all { transition: all var(--transition-normal); }
.transition-colors { transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast); }
.transition-opacity { transition: opacity var(--transition-fast); }
.transition-transform { transition: transform var(--transition-normal); }
.transition-shadow { transition: box-shadow var(--transition-fast); }

.duration-fast { transition-duration: 150ms; }
.duration-normal { transition-duration: 250ms; }
.duration-slow { transition-duration: 400ms; }

.ease-linear { transition-timing-function: linear; }
.ease-in { transition-timing-function: cubic-bezier(0.4, 0, 1, 1); }
.ease-out { transition-timing-function: cubic-bezier(0, 0, 0.2, 1); }
.ease-in-out { transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }
.ease-bounce { transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1); }

/* 变换 */
.scale-95 { transform: scale(0.95); }
.scale-100 { transform: scale(1); }
.scale-105 { transform: scale(1.05); }
.scale-110 { transform: scale(1.1); }

.rotate-0 { transform: rotate(0deg); }
.rotate-90 { transform: rotate(90deg); }
.rotate-180 { transform: rotate(180deg); }
.rotate-270 { transform: rotate(270deg); }

.translate-y-0 { transform: translateY(0); }
.translate-y-1 { transform: translateY(var(--space-1)); }
.translate-y--1 { transform: translateY(calc(var(--space-1) * -1)); }
.translate-y-2 { transform: translateY(var(--space-2)); }
.translate-y--2 { transform: translateY(calc(var(--space-2) * -1)); }

/* 网格 */
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.grid-flow-row { grid-auto-flow: row; }
.grid-flow-col { grid-auto-flow: column; }
.grid-flow-dense { grid-auto-flow: dense; }

.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-full { grid-column: 1 / -1; }

.row-span-1 { grid-row: span 1 / span 1; }
.row-span-2 { grid-row: span 2 / span 2; }

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(24px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-24px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.animate-fade-in { animation: fadeIn var(--transition-normal) ease-out; }
.animate-fade-in-up { animation: fadeInUp var(--transition-normal) ease-out; }
.animate-fade-in-down { animation: fadeInDown var(--transition-normal) ease-out; }
.animate-scale-in { animation: scaleIn var(--transition-normal) ease-out; }
.animate-slide-in-right { animation: slideInRight var(--transition-normal) ease-out; }
.animate-slide-in-left { animation: slideInLeft var(--transition-normal) ease-out; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-float { animation: float 4s ease-in-out infinite; }

/* 精致动效 */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes bounce-in {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes bounce-in-up {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.9);
    }
    60% {
        transform: translateY(-5px) scale(1.02);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes glow-pulse {
    0%, 100% {
        box-shadow: 0 0 5px rgba(166, 124, 82, 0.3),
                    0 0 10px rgba(166, 124, 82, 0.2);
    }
    50% {
        box-shadow: 0 0 15px rgba(166, 124, 82, 0.5),
                    0 0 30px rgba(166, 124, 82, 0.3);
    }
}

@keyframes wiggle {
    0%, 100% { transform: rotate(-3deg); }
    50% { transform: rotate(3deg); }
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    14% { transform: scale(1.1); }
    28% { transform: scale(1); }
    42% { transform: scale(1.1); }
    70% { transform: scale(1); }
}

@keyframes slide-up-fade {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-shimmer {
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.4) 50%, 
        transparent 100%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.animate-spin { animation: spin 1s linear infinite; }
.animate-bounce-in { animation: bounce-in 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55); }
.animate-bounce-in-up { animation: bounce-in-up 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55); }
.animate-glow-pulse { animation: glow-pulse 2s ease-in-out infinite; }
.animate-wiggle { animation: wiggle 0.5s ease-in-out; }
.animate-heartbeat { animation: heartbeat 1.5s ease-in-out infinite; }

/* 延迟动画类 - 用于错落入场 */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }
.delay-600 { animation-delay: 600ms; }
.delay-700 { animation-delay: 700ms; }
.delay-800 { animation-delay: 800ms; }

/* 动画填充模式 */
.animate-fill-both { animation-fill-mode: both; }
.animate-fill-forwards { animation-fill-mode: forwards; }
.animate-fill-backwards { animation-fill-mode: backwards; }

/* 鼠标悬停微动效 */
.hover-lift {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-scale {
    transition: transform var(--transition-fast);
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-rotate {
    transition: transform var(--transition-normal);
}

.hover-rotate:hover {
    transform: rotate(3deg);
}

/* 卡片式入场动画 - 依次淡入上移 */
.stagger-enter > * {
    opacity: 0;
    transform: translateY(16px);
    animation: slide-up-fade 0.5s ease-out forwards;
}

.stagger-enter > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-enter > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-enter > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-enter > *:nth-child(4) { animation-delay: 0.2s; }
.stagger-enter > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-enter > *:nth-child(6) { animation-delay: 0.3s; }
.stagger-enter > *:nth-child(7) { animation-delay: 0.35s; }
.stagger-enter > *:nth-child(8) { animation-delay: 0.4s; }
.stagger-enter > *:nth-child(9) { animation-delay: 0.45s; }
.stagger-enter > *:nth-child(10) { animation-delay: 0.5s; }

/* 响应式断点辅助类 */
@media (max-width: 1024px) {
    .lg\:hidden { display: none !important; }
    .lg\:flex { display: flex !important; }
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr) !important; }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr) !important; }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr) !important; }
}

@media (max-width: 768px) {
    html { font-size: 15px; }

    .md\:hidden { display: none !important; }
    .md\:flex { display: flex !important; }
    .md\:block { display: block !important; }
    .md\:flex-col { flex-direction: column !important; }
    .md\:grid-cols-1 { grid-template-columns: 1fr !important; }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr) !important; }
    .md\:w-full { width: 100% !important; }
    .md\:p-4 { padding: var(--space-4) !important; }
    .md\:p-6 { padding: var(--space-6) !important; }
}

@media (max-width: 480px) {
    html { font-size: 14px; }

    .sm\:hidden { display: none !important; }
    .sm\:flex-col { flex-direction: column !important; }
    .sm\:grid-cols-1 { grid-template-columns: 1fr !important; }
    .sm\:w-full { width: 100% !important; }
}