/* ============================================================
   FestivalHub - Global Festival Encyclopedia
   主样式表(baseof.html 引用: css/style.css)
   ------------------------------------------------------------
   涵盖:基础重置 / 容器 / 跳过链接 / 按钮 / Hero /
        首页分区块(分类导航、精选节日、日历、指南、CTA)/
        卡片网格(首页 + list.html 共用)/ 响应式布局
   ============================================================ */

/* ===== 0. 设计令牌(Design Tokens) ===== */
:root {
    --color-primary: #c2410c;          /* 节日橙 */
    --color-primary-dark: #9a3412;
    --color-primary-light: #fff7ed;
    --color-primary-border: #fed7aa;
    --color-text: #1a1a1a;
    --color-text-muted: #555;
    --color-text-soft: #666;
    --color-text-faint: #888;
    --color-border: #e5e7eb;
    --color-bg: #fafafa;
    --color-surface: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.12);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --container-max: 1200px;
    --transition: 0.2s ease;
}

/* ===== 1. 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", Arial, "Noto Sans", sans-serif,
                 "Apple Color Emoji", "Segoe UI Emoji";
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { text-decoration: underline; }

h1, h2, h3, h4, h5, h6 {
    line-height: 1.25;
    margin: 0 0 0.5em;
    font-weight: 700;
}

p { margin: 0 0 1em; }
time { font-variant-numeric: tabular-nums; }

/* ===== 2. 跳过链接(无障碍) ===== */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 1000;
    padding: 0.5rem 1rem;
    background: var(--color-primary);
    color: #fff;
    border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ===== 3. 容器 ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 1.5rem 1.25rem;
}

/* ===== 4. 按钮 ===== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.2;
    text-decoration: none;
    text-align: center;
    border: 2px solid transparent;
    cursor: pointer;
    transition: background var(--transition),
                color var(--transition),
                border-color var(--transition),
                transform var(--transition),
                box-shadow var(--transition);
}
.btn:hover { text-decoration: none; }

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-secondary:hover {
    background: var(--color-primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* ===== 5. 通用区块(Home Section) ===== */
.home-page { display: block; }
.home-section { margin-bottom: 3rem; }
.section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 0.5rem;
    color: var(--color-text);
}
.section-desc {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    font-size: 1rem;
    max-width: 60ch;
}
.home-section-footer {
    margin-top: 1.75rem;
    text-align: center;
}

/* ===== 6. Hero 区域(A) ===== */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
    padding: 4rem 1.25rem;
    text-align: center;
    margin: -1.5rem -1.25rem 2.5rem;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}
.hero-inner {
    max-width: 800px;
    margin: 0 auto;
}
.hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 0.5rem;
    color: #fff;
}
.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    opacity: 0.95;
    margin-bottom: 2rem;
}
.hero-search { margin-bottom: 1.5rem; }
.hero-quick-links {
    margin-top: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    justify-content: center;
    align-items: center;
    font-size: 0.95rem;
}
.hero-quick-links .quick-links-label { opacity: 0.85; }
.hero-quick-links a {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.hero-quick-links a:hover { opacity: 0.85; }
.hero-langs { margin-top: 1.5rem; }

/* ===== 7. 分类导航卡片(B) ===== */
.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}
.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.75rem 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    text-decoration: none;
    transition: transform var(--transition),
                box-shadow var(--transition),
                border-color var(--transition),
                background var(--transition);
}
.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    text-decoration: none;
}
.category-icon {
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: 0.5rem;
}
.category-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--color-text);
}
.category-desc {
    font-size: 0.9rem;
    color: var(--color-text-soft);
    margin: 0;
}

/* ===== 8. 卡片网格(C - 精选节日 + list.html 共用) ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: transform var(--transition),
                box-shadow var(--transition),
                border-color var(--transition);
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}
.card-link {
    display: block;
    padding: 1.25rem;
    color: inherit;
    text-decoration: none;
    height: 100%;
}
.card-link:hover { text-decoration: none; }
.card-title {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}
.card-description {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}
.card-meta {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-faint);
}
.meta-separator { margin: 0 0.25rem; }

/* ===== 9. 节日日历入口 ===== */
.calculator-cta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== 10. 节日百科指南 ===== */
.guide-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}
.guide-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: transform var(--transition),
                box-shadow var(--transition),
                border-color var(--transition);
}
.guide-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}
.guide-link {
    display: block;
    padding: 1.25rem;
    color: inherit;
    text-decoration: none;
    height: 100%;
}
.guide-link:hover { text-decoration: none; }
.guide-title {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}
.guide-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}
.guide-date {
    font-size: 0.85rem;
    color: var(--color-text-faint);
}

/* ===== 11. CTA 行动号召(D) ===== */
.home-cta {
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 1.5rem;
    text-align: center;
}
.home-cta .section-title { margin-bottom: 0.5rem; }
.home-cta .section-desc {
    margin-bottom: 1.75rem;
    margin-left: auto;
    margin-right: auto;
}
.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== 11b. 订阅区块(E) ===== */
.home-subscribe {
    background: linear-gradient(135deg, var(--color-primary-light), #fff);
    border: 1px solid var(--color-primary-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 1.5rem;
    text-align: center;
}
.home-subscribe .section-title { margin-bottom: 0.5rem; }
.home-subscribe .section-desc {
    margin-bottom: 1.75rem;
    margin-left: auto;
    margin-right: auto;
}
.subscribe-options {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}
.subscribe-form-inline {
    display: flex;
    gap: 0.5rem;
    flex: 1;
    max-width: 420px;
}
.subscribe-form-inline input[type="email"] {
    flex: 1;
    padding: 0.65rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
}
.subscribe-form-inline input[type="email"]:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: -1px;
}
.rss-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.65rem 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-weight: 500;
    text-decoration: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.rss-link:hover {
    border-color: var(--color-primary-border);
    box-shadow: var(--shadow-sm);
}
.rss-link::before {
    content: "📡";
    font-size: 1.1rem;
}

/* ===== Footer 订阅样式 ===== */
.footer-subscribe .subscribe-feeds {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
}
.footer-subscribe .subscribe-feeds li {
    margin-bottom: 0.35rem;
}
.footer-subscribe .subscribe-feeds a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
}
.footer-subscribe .subscribe-feeds a:hover {
    color: var(--color-primary);
}
.footer-subscribe .subscribe-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}
.footer-subscribe .subscribe-form input[type="email"] {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
}
.footer-subscribe .subscribe-form button {
    padding: 0.5rem 1rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition);
}
.footer-subscribe .subscribe-form button:hover {
    background: var(--color-primary-dark);
}

/* ===== 11c. 广告位样式(AdSense 占位) ===== */
.ad-slot {
    margin: 1.5rem 0;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(0, 0, 0, 0.02) 10px,
        rgba(0, 0, 0, 0.02) 20px
    );
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-faint);
    font-size: 0.75rem;
}
.ad-slot::before {
    content: "Ad";
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
    opacity: 0.4;
}
.ad-slot--home-middle,
.ad-slot--content-top,
.ad-slot--content-bottom {
    min-height: 100px;
}
.ad-slot--list-top,
.ad-slot--list-bottom {
    min-height: 90px;
}
@media (max-width: 768px) {
    .ad-slot {
        min-height: 70px;
        margin: 1rem 0;
    }
}

/* ===== 12. 首页正文内容(_index.md 渲染区) ===== */
.home-content {
    margin-top: 2rem;
    padding: 1.75rem;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}
.home-content h2 {
    color: var(--color-primary);
    margin-top: 1.5rem;
}
.home-content h2:first-child,
.home-content h1:first-child { margin-top: 0; }
.home-content ul,
.home-content ol { padding-left: 1.5rem; }
.home-content li { margin-bottom: 0.5rem; }
.home-content a { color: var(--color-primary); }

/* ===== 13. 响应式:平板 2 列 ===== */
@media (max-width: 1024px) {
    .category-grid,
    .card-grid,
    .guide-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== 14. 响应式:手机 1 列 ===== */
@media (max-width: 640px) {
    .container { padding: 1rem; }

    .hero {
        padding: 2.75rem 1.25rem;
        margin: -1rem -1rem 2rem;
    }

    .home-section { margin-bottom: 2.25rem; }

    .category-grid,
    .card-grid,
    .guide-grid {
        grid-template-columns: 1fr;
    }

    .cta-buttons { flex-direction: column; }
    .cta-buttons .btn { width: 100%; }

    .home-cta { padding: 1.75rem 1.25rem; }
}

/* ===== 15. 响应式:大屏微调 ===== */
@media (min-width: 1280px) {
    .section-desc { max-width: 70ch; }
}

/* ===== 16. 动效偏好(尊重 prefers-reduced-motion) ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .category-card:hover,
    .card:hover,
    .guide-card:hover,
    .btn:hover { transform: none; }
}