/* ============================================================
   🏠 首页专属样式 — 云阅 Homepage
   依赖：global.css（UI 变量）、poetry.css（侧边栏/按钮组件）
   布局：site-content > content-area (与详情页统一)
   ============================================================ */

/* ============================================================
   1. 页面整体布局（已迁移至 poetry.css 的 .site-content / .content-area）
   ============================================================ */

/* 首页主内容区微调 */
.content-area.home-main {
    padding: 0;
    height: 100%;
}

/* ============================================================
   2. Hero 区域
   ============================================================ */

.home-hero {
    position: relative;
    min-height: 380px;
    padding: 80px 60px 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        linear-gradient(135deg,
            color-mix(in srgb, var(--ui-accent, #9b6bff) 8%, var(--ui-solid-bg, #fdfbf7)) 0%,
            color-mix(in srgb, var(--ui-accent, #9b6bff) 4%, #fdfbf7) 50%,
            #fdfbf7 100%);
}

/* Hero 背景装饰圆 */
.hero-bg-decoration {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.deco-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.35;
}

.deco-circle-1 {
    width: 320px;
    height: 320px;
    top: -80px;
    right: -60px;
    background: radial-gradient(circle, color-mix(in srgb, var(--ui-accent, #9b6bff) 30%, transparent), transparent 70%);
    animation: floatCircle 12s ease-in-out infinite;
}

.deco-circle-2 {
    width: 200px;
    height: 200px;
    bottom: -40px;
    left: 10%;
    background: radial-gradient(circle, color-mix(in srgb, #4f46e5 25%, transparent), transparent 70%);
    animation: floatCircle 15s ease-in-out infinite reverse;
}

.deco-circle-3 {
    width: 140px;
    height: 140px;
    top: 40%;
    right: 20%;
    background: radial-gradient(circle, color-mix(in srgb, #f59e0b 20%, transparent), transparent 70%);
    animation: floatCircle 18s ease-in-out infinite;
}

@keyframes floatCircle {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

/* Hero 内容 */
.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
}

.hero-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin: 0 0 20px;
}

.hero-title-main {
    font-size: 4.5rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    background: linear-gradient(135deg,
        var(--ui-accent, #9b6bff) 0%,
        var(--ui-accent-ci, #4f46e5) 50%,
        #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleFadeIn 1s ease-out;
}

.hero-title-sub {
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.3em;
    color: var(--ui-text-dim, #6b7280);
    animation: titleFadeIn 1s ease-out 0.2s both;
}

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

.hero-desc {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--ui-text-dim, #6b7280);
    margin: 0 0 36px;
    animation: titleFadeIn 1s ease-out 0.4s both;
}

/* Hero 统计数据 */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    animation: titleFadeIn 1s ease-out 0.6s both;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-num {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--ui-accent, #9b6bff);
    letter-spacing: 0.05em;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--ui-text-dim, #6b7280);
    letter-spacing: 0.1em;
}

.stat-divider {
    width: 1px;
    height: 32px;
    background: color-mix(in srgb, var(--ui-text) 15%, transparent);
}

/* ============================================================
   3. 内容模块区
   ============================================================ */

.home-modules {
    padding: 60px;
}

.section-title {
    font-size: 1.6rem;
    font-weight: 600;
    margin: 0 0 36px;
    padding-left: 16px;
    border-left: 4px solid var(--ui-accent, #9b6bff);
    color: var(--ui-text, #2a2a2a);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

/* ============================================================
   4. 模块卡片
   ============================================================ */

.module-card {
    display: block;
    position: relative;
    border-radius: var(--ui-radius-xl, 10px);
    background: var(--ui-glass-bg, rgba(255, 255, 255, 0.22));
    border: 1px solid var(--ui-glass-border, rgba(255, 255, 255, 0.30));
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.module-card-inner {
    padding: 32px 28px;
}

/* 图标 */
.module-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: var(--ui-radius-lg, 8px);
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--ui-accent, #9b6bff) 15%, var(--ui-glass-bg, rgba(255, 255, 255, 0.22))),
        color-mix(in srgb, var(--ui-accent, #9b6bff) 8%, var(--ui-glass-bg, rgba(255, 255, 255, 0.22))));
    border: 1px solid color-mix(in srgb, var(--ui-accent, #9b6bff) 20%, var(--ui-glass-border, rgba(255, 255, 255, 0.30)));
}

/* 标题 */
.module-title {
    font-size: 1.35rem;
    font-weight: 600;
    margin: 0 0 10px;
    color: var(--ui-text, #2a2a2a);
}

/* 描述 */
.module-desc {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--ui-text-dim, #6b7280);
    margin: 0 0 16px;
}

/* 特性标签 */
.module-features {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.feature-tag {
    font-size: 0.78rem;
    padding: 3px 10px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--ui-accent, #9b6bff) 12%, transparent);
    color: var(--ui-accent, #9b6bff);
    border: 1px solid color-mix(in srgb, var(--ui-accent, #9b6bff) 20%, transparent);
}

.feature-tag.disabled {
    background: color-mix(in srgb, var(--ui-text) 8%, transparent);
    color: var(--ui-text-dim, #6b7280);
    border-color: color-mix(in srgb, var(--ui-text) 10%, transparent);
}

/* 操作按钮 */
.module-action {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--ui-accent, #9b6bff);
}

.action-arrow {
    transition: transform 0.25s ease;
}

.module-card:hover .action-arrow {
    transform: translateX(4px);
}

.module-action--disabled {
    color: var(--ui-text-dim, #6b7280);
    cursor: not-allowed;
}

/* 可用卡片悬停效果 */
.module-card--active:hover {
    border-color: color-mix(in srgb, var(--ui-accent, #9b6bff) 40%, var(--ui-glass-border, rgba(255, 255, 255, 0.30)));
    box-shadow: 0 16px 48px rgba(155, 107, 255, 0.18);
}

/* 卡片悬停时图标微旋转 */
.module-card--active:hover .module-icon {
    transform: scale(1.05);
    transition: transform 0.3s ease;
}

/* 禁用卡片样式 */
.module-card--disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.module-card--disabled:hover {
    transform: none !important;
    box-shadow: none !important;
}

/* ============================================================
   5. 模块卡片 — 各主题专属配色
   ============================================================ */

/* 诗词卡片 */
.module-card--poetry .module-icon {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border-color: #fcd34d;
}

.module-card--poetry {
    border-color: color-mix(in srgb, #f59e0b 25%, var(--ui-glass-border, rgba(255, 255, 255, 0.30)));
}

.module-card--poetry:hover {
    border-color: color-mix(in srgb, #f59e0b 50%, var(--ui-glass-border, rgba(255, 255, 255, 0.30)));
}

/* 数学卡片 */
.module-card--math .module-icon {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-color: #93c5fd;
}

/* 英语卡片 */
.module-card--english .module-icon {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    border-color: #6ee7b7;
}

/* 名句卡片 */
.module-card--mingju .module-icon {
    background: linear-gradient(135deg, #fce7f3, #fbcfe8);
    border-color: #f9a8d4;
}

.module-card--mingju {
    border-color: color-mix(in srgb, #ec4899 25%, var(--ui-glass-border, rgba(255, 255, 255, 0.30)));
}

.module-card--mingju:hover {
    border-color: color-mix(in srgb, #ec4899 50%, var(--ui-glass-border, rgba(255, 255, 255, 0.30)));
}

/* 古籍卡片 */
.module-card--classics .module-icon {
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    border-color: #a5b4fc;
}

/* 历史卡片 */
.module-card--history .module-icon {
    background: linear-gradient(135deg, #ffedd5, #fed7aa);
    border-color: #fdba74;
}

/* ============================================================
   6. 底部信息
   ============================================================ */

.home-footer {
    padding: 40px 60px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--ui-text-dim, #6b7280);
    border-top: 1px solid color-mix(in srgb, var(--ui-text) 8%, transparent);
}

/* ============================================================
   7. 响应式设计
   ============================================================ */

@media (max-width: 1024px) {
    .home-hero {
        padding: 60px 40px 50px;
    }

    .home-modules {
        padding: 50px 40px;
    }

    .hero-title-main {
        font-size: 3.5rem;
    }

    .stat-num {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .home-hero {
        padding: 48px 20px 40px;
        min-height: 320px;
    }

    .home-modules {
        padding: 36px 20px;
    }

    .hero-title-main {
        font-size: 3rem;
    }

    .hero-title-sub {
        font-size: 0.95rem;
        letter-spacing: 0.2em;
    }

    .hero-desc {
        font-size: 0.95rem;
        padding: 0 10px;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-num {
        font-size: 1.3rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    .section-title {
        font-size: 1.3rem;
        margin-bottom: 24px;
    }

    .modules-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .module-card-inner {
        padding: 24px 20px;
    }

    .home-footer {
        padding: 30px 20px;
    }
}

/* ============================================================
   8. 暗色主题适配
   ============================================================ */

.theme-dark .home-hero {
    background:
        linear-gradient(135deg,
            color-mix(in srgb, #4f46e5 20%, #0f172a) 0%,
            color-mix(in srgb, #1e1b4b 30%, #0f172a) 50%,
            #0f172a 100%);
}

.theme-dark .stat-num {
    color: #c4b5fd;
}

.theme-dark .module-card {
    background: rgba(30, 41, 59, 0.5);
    border-color: rgba(148, 163, 184, 0.15);
}

.theme-dark .module-card--active:hover {
    box-shadow: 0 16px 48px rgba(99, 102, 241, 0.3);
}

.theme-dark .home-footer {
    border-color: rgba(148, 163, 184, 0.1);
}