/* ==========================================
   Kopf Gym (kopfgym.com) - 首页特有样式表 (index.css)
   美式传统报刊期刊风格 (American Editorial & Senior Heritage)
   ========================================== */

/* 主视觉横幅区 (Hero: The Morning Front-Page Feature) */
.hero {
    background-color: var(--bg-secondary);
    padding: 56px 0 68px 0;
    border-bottom: 2px solid var(--color-border);
    position: relative;
}

.hero-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 56px;
}

.hero-content {
    flex: 1.25;
    max-width: 680px;
}

/* 经典报章导读微标 (Kicker - 符合 Zero-Pill 规范，纯文字无胶囊塑料盒) */
.hero-kicker {
    display: inline-block;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 18px;
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: 4px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 46px;
    font-weight: 900;
    line-height: 1.22;
    color: var(--text-main);
    margin-bottom: 22px;
    letter-spacing: -0.5px;
}

.hero-title span {
    color: var(--color-primary);
    font-style: italic;
}

.hero-desc {
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 32px;
    line-height: 1.7;
}

/* 按钮组 */
.hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

/* 晨间指标栏 (Zero-Pill: 纯净文字与点号分隔，符合美式传统报刊) */
.hero-specs {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-muted);
    border-top: 1px solid var(--color-border-subtle);
    padding-top: 20px;
}

.hero-spec-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.hero-spec-dot {
    color: var(--color-accent);
}

/* 右侧图片展示区 (美式经典杂志相框排版) */
.hero-image-box {
    flex: 0.95;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
}

.hero-frame {
    background-color: #ffffff;
    padding: 12px;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 480px;
}

.hero-img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    border-radius: 10px;
    display: block;
}

.hero-caption {
    font-size: 14px;
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
    margin-top: 12px;
    line-height: 1.5;
}

/* 区块通用标题区 */
.section-header {
    text-align: center;
    margin: 64px 0 40px 0;
}

.section-kicker {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    color: var(--color-accent);
    display: block;
    margin-bottom: 8px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 38px;
    font-weight: 900;
    color: var(--text-main);
    margin-bottom: 10px;
    line-height: 1.25;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 三大专栏区块 (The Three Daily Departments) */
.departments-section {
    margin-top: 50px;
}

.department-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 26px;
}

.department-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--color-border);
    border-top: 4px solid var(--color-primary);
    border-radius: 14px;
    padding: 30px 22px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.department-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.dept-icon-plate {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.department-card h3 {
    font-family: var(--font-serif);
    font-size: 23px;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 10px;
    line-height: 1.3;
}

.department-card p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.dept-action {
    font-size: 15px;
    font-weight: 800;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-top: 1px dashed var(--color-border);
    padding-top: 14px;
    transition: gap 0.2s ease;
}

.department-card:hover .dept-action {
    gap: 10px;
}

/* 三大部门专属色彩微调 */
.dept-blue { border-top-color: #123359; }
.dept-blue .dept-icon-plate { background-color: #eaf0f8; color: #123359; }

.dept-green { border-top-color: #166534; }
.dept-green .dept-icon-plate { background-color: #eef8f1; color: #166534; }

.dept-amber { border-top-color: #b45309; }
.dept-amber .dept-icon-plate { background-color: #fdf6e7; color: #b45309; }

.dept-burgundy { border-top-color: #881337; }
.dept-burgundy .dept-icon-plate { background-color: #fff1f2; color: #881337; }

body.dark-theme .department-card {
    background-color: var(--bg-secondary);
    border-color: var(--color-border);
}

body.dark-theme .dept-blue .dept-icon-plate { background-color: #132742; color: #93c5fd; }
body.dark-theme .dept-green .dept-icon-plate { background-color: #112d1b; color: #86efac; }
body.dark-theme .dept-amber .dept-icon-plate { background-color: #38240f; color: #fde68a; }
body.dark-theme .dept-burgundy .dept-icon-plate { background-color: #3b111d; color: #fda4af; }



/* 推荐与最新测验网格 (Featured Quizzes - 美式杂志卡片风格) */
.quiz-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 40px;
}

.quiz-card {
    background-color: var(--bg-secondary);
    border-radius: 16px;
    overflow: hidden;
    text-decoration: none;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.quiz-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.quiz-img-box {
    position: relative;
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
    background-color: var(--bg-subtle);
}

.quiz-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.quiz-card:hover .quiz-img {
    transform: scale(1.04);
}

.quiz-info {
    padding: 24px 22px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

/* 清爽未装箱的元数据 (Zero-Pill 规范) */
.quiz-meta-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.quiz-meta-sep {
    color: var(--color-border);
}

.quiz-meta-time {
    color: var(--text-muted);
}

.quiz-card-title {
    font-family: var(--font-serif);
    font-size: 21px;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.4;
    margin-bottom: 20px;
    flex-grow: 1;
}

.quiz-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 16px;
    font-weight: 800;
    color: var(--color-primary);
    border-top: 1px solid var(--color-border-subtle);
    padding-top: 14px;
    transition: color 0.2s ease;
}

.quiz-card:hover .quiz-action {
    color: var(--color-accent);
}

/* 深度健脑知识库 (The Cognitive Health Journal - 典雅特稿双栏排版) */
.seo-section {
    margin-top: 70px;
    margin-bottom: 70px;
    background-color: var(--bg-secondary);
    border-radius: 18px;
    padding: 50px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.seo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.seo-item {
    display: flex;
    flex-direction: column;
}

.seo-item h4 {
    font-family: var(--font-serif);
    font-size: 21px;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.seo-item h4 .icon-ph {
    color: var(--color-primary);
    display: inline-flex;
}

.seo-item p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-muted);
}

.seo-divider {
    border: 0;
    border-top: 1px solid var(--color-border);
    margin: 36px 0;
}

.seo-long-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.seo-long-text p:last-child {
    margin-bottom: 0;
}

/* 每日美式名言箴言 (Daily Golden Wisdom) */
.quote-section {
    background-color: var(--bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: 18px;
    padding: 44px 36px;
    text-align: center;
    margin: 0 auto 70px auto;
}

.quote-kicker {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--color-accent);
    display: block;
    margin-bottom: 14px;
}

.quote-text {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 16px;
    line-height: 1.45;
}

.quote-author {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-muted);
}

/* 响应式样式适配 */
@media (max-width: 1024px) {
    .hero-wrapper {
        flex-direction: column;
        gap: 40px;
    }
    .department-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .quiz-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .department-grid {
        grid-template-columns: 1fr;
    }
    .quiz-grid {
        grid-template-columns: 1fr;
    }
    .seo-grid {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 34px;
    }
    .hero-specs {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .hero-spec-dot {
        display: none;
    }
}