/* =========================================================
   国家一级美术师 - 全站响应式样式
   断点：1400 / 1200 / 992 / 768 / 576 / 400
   ========================================================= */

/* 性能统计信息 - 页脚 */
.perf-stats {
    font-size: 12px;
    color: #999;
    opacity: 0.6;
    margin-top: 6px;
    letter-spacing: 0.5px;
}

/* ---------- 1200px 以上：大屏幕 ---------- */
@media (min-width: 1200px) {
    .container { max-width: 1400px !important; }
    .detail-layout { display: grid !important; grid-template-columns: 1fr 280px !important; gap: 28px !important; align-items: start !important; }
}

/* ---------- 1200px 以下：中等桌面 / 小屏笔记本 ---------- */
@media (max-width: 1200px) {
    .container { max-width: 960px; padding: 0 20px; }
    .artist-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px; }
}

/* ---------- 992px 以下：平板横屏 ---------- */
@media (max-width: 992px) {
    .container { max-width: 100%; margin: 32px auto; padding: 0 16px; }
    .main-content { padding: 32px; }
    .main-content::before { top: 6px; left: 6px; right: 6px; bottom: 6px; }
    .page-title { font-size: 28px; letter-spacing: 6px; margin-bottom: 36px; padding-bottom: 18px; }

    /* header */
    .header { padding: 36px 0 28px; }
    .header h1 { font-size: 38px; letter-spacing: 8px; }
    .header .subtitle { font-size: 13px; letter-spacing: 5px; }
    .header-deco-line { width: 80px; }

    /* nav */
    .nav a { font-size: 15px; letter-spacing: 3px; padding: 14px 16px; }

    /* footer */
    .footer { padding: 36px 0 28px; margin-top: 56px; }
    .footer p { font-size: 14px; letter-spacing: 2px; }

    /* detail */
    .detail-layout { gap: 16px; }
    .artist-banner { padding: 28px 24px; gap: 20px; }
    .artist-name-main { font-size: 30px; letter-spacing: 5px; }
    .content-body { padding: 24px; }
    .works-gallery { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }

    /* about */
    .stats-grid { gap: 14px; }
    .stat-num { font-size: 34px; }

    /* contact */
    .contact-grid { gap: 28px; }
}

/* ---------- 768px 以下：平板竖屏 / 大手机 ---------- */
@media (max-width: 768px) {
    .container { margin: 24px auto; padding: 0 12px; }
    .main-content { padding: 24px 18px; box-shadow: 0 4px 24px rgba(122,10,20,0.08); }
    .main-content::before { top: 4px; left: 4px; right: 4px; bottom: 4px; }
    .page-title { font-size: 24px; letter-spacing: 4px; margin-bottom: 28px; padding-bottom: 14px; }

    /* header */
    .header { padding: 28px 0 22px; }
    .header h1 { font-size: 30px; letter-spacing: 6px; margin-bottom: 8px; }
    .header .subtitle { font-size: 11px; letter-spacing: 3px; }
    .header-deco { gap: 12px; margin-bottom: 8px; }
    .header-deco-line { width: 50px; }

    /* nav - 横向滚动 */
    .nav {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
        text-align: left;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    .nav::-webkit-scrollbar { display: none; }
    .nav a {
        font-size: 14px;
        letter-spacing: 2px;
        padding: 12px 14px;
        margin: 0 2px;
        display: inline-block;
    }

    /* search */
    .search-box { flex-direction: column; align-items: stretch; gap: 8px; }
    .search-box form { flex-direction: column; width: 100%; }
    .search-box input { width: 100%; padding: 10px 16px; font-size: 14px; }
    .search-box button { width: 100%; padding: 10px 0; }

    /* category nav */
    .category-nav { gap: 8px; }
    .category-nav a { padding: 6px 14px; font-size: 13px; letter-spacing: 1px; }

    /* artist grid */
    .artist-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .artist-card .card-body { padding: 16px; }
    .card-cover { height: 70px; }
    .artist-name { font-size: 17px; letter-spacing: 2px; }
    .card-avatar { width: 50px; height: 50px; }
    .card-desc { -webkit-line-clamp: 2; font-size: 13px; }
    .card-footer { flex-direction: column; gap: 10px; align-items: flex-start; }
    .btn-detail { text-align: center; width: 100%; }

    /* pagination */
    .pagination { margin-top: 36px; gap: 4px; }
    .pagination a, .pagination span { padding: 7px 12px; font-size: 13px; }
    .pagination-info { font-size: 12px; }

    /* detail page */
    .detail-layout { flex-direction: column; }
    .sidebar { width: 100%; }
    .artist-banner { flex-direction: column; align-items: center; text-align: center; padding: 24px 20px; }
    .artist-photo { width: 120px; height: 150px; }
    .banner-badges { justify-content: center; }
    .banner-meta { justify-content: center; }
    .artist-name-main { font-size: 26px; letter-spacing: 4px; }
    .artist-name-sub { font-size: 13px; }
    .content-body { padding: 20px; }
    .works-gallery { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .work-card img { height: 140px; }

    /* news */
    .news-item { flex-direction: column; gap: 14px; }
    .news-thumb { width: 100%; height: 160px; }
    .news-title { font-size: 17px; }

    /* about */
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .stat-card { padding: 20px 14px; }
    .stat-num { font-size: 32px; }
    .cat-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .about-section h3 { font-size: 18px; }
    .about-section p { font-size: 15px; }

    /* contact */
    .contact-grid { grid-template-columns: 1fr; gap: 28px; }
    .map-placeholder { height: 200px; }

    /* footer */
    .footer { padding: 28px 0 22px; margin-top: 40px; }
    .footer-deco-line { width: 50px; }
    .footer p { font-size: 13px; letter-spacing: 1px; line-height: 2; }
}

/* ---------- 576px 以下：手机竖屏 ---------- */
@media (max-width: 576px) {
    .container { margin: 16px auto; padding: 0 10px; }
    .main-content { padding: 18px 14px; border-radius: 2px; }
    .main-content::before { display: none; }
    .page-title { font-size: 20px; letter-spacing: 3px; margin-bottom: 22px; padding-bottom: 12px; }

    /* header */
    .header { padding: 22px 0 18px; }
    .header h1 { font-size: 24px; letter-spacing: 4px; margin-bottom: 6px; }
    .header .subtitle { font-size: 10px; letter-spacing: 2px; }
    .header-deco { gap: 8px; margin-bottom: 6px; }
    .header-deco-line { width: 36px; }

    /* nav */
    .nav a { font-size: 13px; letter-spacing: 1px; padding: 10px 10px; }

    /* top border */
    .top-border { height: 3px; }

    /* artist grid - single column on very small screens */
    .artist-grid { grid-template-columns: 1fr; gap: 12px; }
    .card-cover { height: 60px; }
    .card-top { gap: 10px; }
    .card-avatar { width: 44px; height: 44px; }
    .artist-name { font-size: 16px; letter-spacing: 1px; }
    .badge { font-size: 11px; padding: 1px 7px; }
    .card-body { padding: 14px; }
    .card-desc { -webkit-line-clamp: 2; font-size: 12px; }
    .card-meta { font-size: 11px; }
    .btn-detail { font-size: 12px; padding: 7px 16px; }
    .achievement-tag { font-size: 11px; }

    /* detail */
    .artist-photo { width: 100px; height: 130px; }
    .artist-name-main { font-size: 22px; letter-spacing: 3px; }
    .artist-name-sub { font-size: 12px; }
    .bbadge { font-size: 11px; padding: 3px 10px; }
    .banner-meta { font-size: 12px; gap: 4px 12px; }
    .section-title { font-size: 16px; letter-spacing: 2px; margin: 20px 0 12px; }
    .artist-intro { font-size: 14px; line-height: 1.9; }
    .artist-intro p { margin-bottom: 10px; text-indent: 1.5em; }
    .works-gallery { grid-template-columns: 1fr; gap: 8px; }
    .work-card img { height: 180px; object-fit: contain; background: #f9f5ef; }
    .work-card .work-label { font-size: 11px; padding: 6px 8px; }
    .content-body { padding: 16px; }
    .back-link { font-size: 12px; margin-bottom: 16px; }
    .sidebar { margin-top: 16px; }
    .sidebar-box { padding: 16px; margin-bottom: 12px; }
    .sb-title { font-size: 14px; }
    .info-row { font-size: 12px; }
    .contact-btn { font-size: 13px; padding: 9px; }
    .related-list a { font-size: 12px; padding: 7px 0; }

    /* news */
    .news-thumb { height: 140px; }
    .news-title { font-size: 15px; letter-spacing: 1px; }
    .news-meta { font-size: 12px; }
    .news-summary { font-size: 13px; }

    /* about */
    .stat-num { font-size: 26px; }
    .stat-label { font-size: 12px; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .cat-card { padding: 14px 8px; }
    .cat-icon { font-size: 28px; }
    .cat-name { font-size: 13px; }
    .about-section h3 { font-size: 16px; letter-spacing: 3px; }
    .about-section p { font-size: 14px; line-height: 2; text-indent: 1.5em; }

    /* contact */
    .contact-icon { width: 36px; height: 36px; }
    .contact-value { font-size: 14px; }
    .contact-label { font-size: 12px; }
    .contact-form input, .contact-form textarea { padding: 10px 12px; font-size: 14px; }
    .contact-form button { width: 100%; padding: 12px 0; font-size: 15px; }
    .map-placeholder { height: 160px; }

    /* footer */
    .footer { padding: 22px 0 18px; margin-top: 32px; border-top-width: 2px; }
    .footer-deco-line { width: 36px; }
    .footer p { font-size: 12px; letter-spacing: 1px; }
    .footer .copyright { font-size: 11px; }
    .perf-stats { font-size: 11px; opacity: 0.55; letter-spacing: 0.5px; margin-top: 4px; }

    /* pagination */
    .pagination a, .pagination span { padding: 6px 10px; font-size: 12px; }
}

/* ---------- 400px 以下：极小屏幕 ---------- */
@media (max-width: 400px) {
    .header h1 { font-size: 20px; letter-spacing: 2px; }
    .header .subtitle { font-size: 9px; letter-spacing: 1px; }
    .nav a { font-size: 12px; padding: 9px 8px; letter-spacing: 1px; }
    .page-title { font-size: 18px; letter-spacing: 2px; }
    .artist-name { font-size: 15px; }
    .artist-name-main { font-size: 20px; letter-spacing: 2px; }
    .stat-num { font-size: 22px; }
}