/* ============================================
   美容仪器 - 主题样式
   ============================================ */

:root {
    --color-primary: #5b7fa5;
    --color-primary-dark: #4a6d91;
    --color-primary-light: #edf2f7;
    --color-text-dark: #1a1a1a;
    --color-text: #444;
    --color-text-muted: #888;
    --color-text-light: #aaa;
    --color-bg-body: #f4f6f9;
    --color-bg-card: #fff;
    --color-bg-gray: #f7f8fa;
    --color-border: #e4e8ec;
    --color-border-light: #f0f2f5;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 4px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --font-family: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
}
body { font-family: var(--font-family); background: var(--color-bg-body); color: var(--color-text); line-height: 1.7; }
a { color: var(--color-text-dark); transition: color 0.2s; }
a:hover { color: var(--color-primary); text-decoration: none; }

/* A11y */
.skip-link { position: absolute; top: -50px; left: 8px; z-index: 9999; padding: 10px 18px; background: var(--color-primary); color: #fff !important; border-radius: 0 0 6px 6px; font-size: 14px; font-weight: 600; transition: top 0.2s ease-out; }
.skip-link:focus { top: 0; outline: 3px solid #fff; outline-offset: 1px; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: 3px; }

/* Navbar */
.navbar-light { background: #fff; border: none; border-bottom: 1px solid var(--color-border); box-shadow: 0 1px 4px rgba(0,0,0,0.03); }
.navbar-light .navbar-nav > li > a { color: #555; font-size: 14px; }
.navbar-light .navbar-nav > li > a:hover { color: var(--color-primary); }
.navbar-light .navbar-nav > .active > a { color: var(--color-primary); background: transparent; }
.navbar-light .navbar-brand { color: var(--color-text-dark); font-weight: 600; font-size: 18px; }
.navbar-light .navbar-toggle { border-color: #ddd; }
.navbar-light .navbar-toggle .icon-bar { background: #888; }
.navbar-light .dropdown-menu { border: 1px solid var(--color-border); box-shadow: var(--shadow-md); border-radius: var(--radius-sm); }
.navbar-light .dropdown-menu > li > a { color: #555; font-size: 13px; }
.navbar-light .dropdown-menu > li > a:hover { background: var(--color-primary-light); color: var(--color-primary); }
.form-search input { background: #f5f6f8; border: 1px solid var(--color-border); color: #555; border-radius: var(--radius-sm); }
.form-search input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(91,127,165,0.1); background: #fff; }

/* Hero */
.hero-section { padding: 90px 0 70px; position: relative; overflow: hidden; }
.hero-inner { display: flex; align-items: center; gap: 40px; position: relative; z-index: 1; }
.hero-text { flex: 1; min-width: 0; }
.hero-title { font-size: 38px; font-weight: 700; color: #fff; margin: 0 0 14px; letter-spacing: 1px; }
.hero-subtitle { font-size: 15px; color: rgba(255,255,255,0.8); line-height: 1.8; margin-bottom: 24px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-hero-primary { background: #fff; color: var(--color-primary); padding: 12px 28px; border-radius: var(--radius-sm); font-weight: 600; font-size: 14px; border: none; transition: all 0.3s; }
.btn-hero-primary:hover { background: #f0f2f5; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.btn-hero-secondary { background: transparent; color: #fff; padding: 12px 28px; border-radius: var(--radius-sm); font-weight: 600; font-size: 14px; border: 2px solid rgba(255,255,255,0.4); transition: all 0.3s; }
.btn-hero-secondary:hover { border-color: #fff; background: rgba(255,255,255,0.08); }
.hero-visual { flex-shrink: 0; }
.hero-icon-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.hero-icon-item { display: flex; flex-direction: column; align-items: center; gap: 5px; padding: 12px 16px; background: rgba(255,255,255,0.1); border-radius: var(--radius-sm); color: rgba(255,255,255,0.8); transition: all 0.3s; }
.hero-icon-item:hover { background: rgba(255,255,255,0.18); transform: translateY(-2px); }
.hero-icon-item i { font-size: 20px; }
.hero-icon-item span { font-size: 11px; white-space: nowrap; }

/* Section */
.section-header { text-align: center; padding: 36px 0 24px; }
.section-title { font-size: 26px; font-weight: 600; color: var(--color-text-dark); margin: 0 0 6px; }
.section-desc { color: var(--color-text-muted); font-size: 13px; }

/* Feature Grid */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 36px; }
.feature-card { display: block; padding: 22px 14px; background: #fff; border-radius: var(--radius-sm); text-align: center; border: 1px solid var(--color-border); transition: all 0.3s; }
.feature-card:hover { border-color: var(--color-primary); box-shadow: 0 4px 12px rgba(91,127,165,0.08); transform: translateY(-2px); }
.feature-card .card-icon { width: 46px; height: 46px; border-radius: var(--radius-sm); display: inline-flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 8px; }
.feature-card h4 { font-size: 14px; color: var(--color-text-dark); margin: 0 0 4px; }
.feature-card p { font-size: 11px; color: var(--color-text-muted); margin: 0; }

/* Panel */
.panel { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-sm); box-shadow: var(--shadow-sm); }
.panel-default > .panel-heading { background: #fff; border-bottom: 1px solid var(--color-border-light); }
.panel-title { font-size: 15px; font-weight: 600; display: flex; align-items: center; justify-content: space-between; color: var(--color-text-dark); }
.panel-more { font-size: 12px; font-weight: 400; color: var(--color-text-muted); }
.panel-more:hover { color: var(--color-primary); }
.breadcrumb { background: transparent; padding: 10px 0; margin: 0; font-size: 12px; }
.breadcrumb > li + li:before { color: #ccc; }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb > .active { color: var(--color-text-dark); }

/* Article List */
.article-item { padding: 18px; border-bottom: 1px solid var(--color-border-light); }
.article-item:last-child { border-bottom: none; }
.article-item .media-left { padding-right: 18px; }
.article-item .embed-responsive { width: 170px; border-radius: var(--radius-sm); overflow: hidden; }
.img-zoom img { transition: transform 0.4s; }
.img-zoom:hover img { transform: scale(1.05); }
.article-title { font-size: 16px; margin: 0 0 6px; }
.article-title a { color: var(--color-text-dark); }
.article-title a:hover { color: var(--color-primary); }
.article-intro { font-size: 13px; color: var(--color-text-muted); line-height: 1.7; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.article-tag { font-size: 11px; color: var(--color-text-light); display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.tag { display: inline-block; padding: 2px 6px; border-radius: 2px; font-size: 10px; }
.tag-primary { background: #edf2f7; color: var(--color-primary); }

/* Article Detail */
.article-detail-title { font-size: 24px; font-weight: 600; color: var(--color-text-dark); margin: 0 0 14px; line-height: 1.4; }
.article-detail-meta { font-size: 12px; color: var(--color-text-muted); margin-bottom: 20px; display: flex; gap: 16px; flex-wrap: wrap; padding-bottom: 14px; border-bottom: 1px solid var(--color-border-light); }
.article-detail-meta a { color: var(--color-text-muted); }
.article-detail-content { font-size: 15px; line-height: 1.9; color: var(--color-text); }
.article-detail-content img { max-width: 100%; border-radius: var(--radius-sm); }
.article-detail-content h2 { font-size: 20px; color: var(--color-text-dark); margin: 24px 0 12px; }
.article-detail-content h3 { font-size: 17px; color: #333; margin: 20px 0 10px; }

/* Article Summary */
.article-summary { margin: 28px 0; padding: 18px 20px; background: #f8fafc; border-left: 4px solid var(--color-primary); border-radius: var(--radius-sm); }
.article-summary-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.summary-deco { color: var(--color-primary); flex-shrink: 0; }
.article-summary-title { font-size: 15px; margin: 0; color: var(--color-text-dark); font-weight: 600; }
.article-summary-text { color: var(--color-text); font-size: 13px; line-height: 1.7; margin: 0 0 10px; }
.article-summary-cite { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; padding-top: 8px; border-top: 1px dashed #e0e4e8; font-size: 11px; color: var(--color-text-muted); }
.cite-label { font-weight: 600; flex-shrink: 0; }
.cite-text { flex: 1; min-width: 0; font-family: Menlo, Monaco, monospace; background: #fff; padding: 4px 8px; border-radius: 3px; color: var(--color-text-dark); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Related */
.related-articles { margin: 18px 0; }
.related-title { font-size: 15px; font-weight: 600; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--color-border-light); }
.related-item { margin-bottom: 12px; }
.related-item .embed-responsive { border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 4px; }
.related-item h5 { font-size: 12px; margin: 0; }
.related-item h5 a { color: #555; }

/* Article Nav */
.article-nav { margin-top: 18px; }
.pager { display: flex; justify-content: space-between; }
.pager li > a { background: #fff; border: 1px solid var(--color-border); color: #666; border-radius: var(--radius-sm); padding: 8px 14px; font-size: 12px; max-width: 48%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pager li > a:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* Widget */
.widget { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-sm); margin-bottom: 14px; overflow: hidden; }
.widget-header { padding: 12px 14px; border-bottom: 1px solid var(--color-border-light); }
.widget-title { font-size: 14px; margin: 0; color: var(--color-text-dark); font-weight: 600; }
.widget-title i { color: var(--color-primary); margin-right: 3px; }
.widget-body { padding: 8px 0; }
.widget-ad { background: transparent; border: none; }
.widget-ad img { width: 100%; border-radius: var(--radius-sm); }
.nav-side { list-style: none; padding: 0; margin: 0; }
.nav-side li a { display: block; padding: 8px 14px; color: #666; font-size: 12px; border-left: 3px solid transparent; transition: all 0.2s; }
.nav-side li a:hover { color: var(--color-primary); background: #f8fafc; border-left-color: var(--color-primary); }
.nav-side li a i { width: 16px; margin-right: 5px; text-align: center; }
.hot-list { list-style: none; padding: 0; margin: 0; }
.hot-item { display: flex; align-items: center; gap: 7px; padding: 8px 14px; font-size: 12px; }
.hot-item .rank { width: 18px; height: 18px; border-radius: 3px; background: #eee; color: #999; font-size: 10px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; font-weight: 600; }
.hot-item .rank-1 { background: var(--color-primary); color: #fff; }
.hot-item .rank-2 { background: #8babca; color: #fff; }
.hot-item .rank-3 { background: #b0c7db; color: #fff; }
.hot-title { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: block; color: #555; }
.hot-title:hover { color: var(--color-primary); }
.hot-view { font-size: 10px; color: var(--color-text-light); flex-shrink: 0; white-space: nowrap; }
.tips-list { list-style: none; padding: 0; margin: 0; }
.tip-item { display: flex; gap: 7px; padding: 7px 14px; font-size: 11px; color: var(--color-text-muted); line-height: 1.5; }
.tip-item i { color: var(--color-primary); flex-shrink: 0; margin-top: 2px; font-size: 11px; }

/* Category Grid */
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 20px; }
.category-card { display: block; padding: 14px; background: var(--color-bg-gray); border-radius: var(--radius-sm); text-align: center; border: 1px solid transparent; transition: all 0.2s; }
.category-card:hover { border-color: var(--color-primary); }
.category-card .card-icon { font-size: 22px; margin-bottom: 6px; color: var(--color-primary); }
.category-card h4 { font-size: 13px; color: var(--color-text-dark); margin: 0 0 2px; }
.category-card p { font-size: 10px; color: var(--color-text-muted); margin: 0; }

/* Image Grid */
.image-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.image-grid-item { background: #fff; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--color-border-light); }
.image-title { font-size: 12px; padding: 8px 10px 2px; margin: 0; color: var(--color-text-dark); }
.image-meta { font-size: 10px; color: var(--color-text-muted); padding: 0 10px 8px; display: flex; gap: 10px; }

/* Product Grid */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.product-card { background: #fff; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--color-border); transition: all 0.3s; }
.product-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); }
.product-img img { width: 100%; height: 180px; object-fit: cover; transition: transform 0.4s; }
.product-card:hover .product-img img { transform: scale(1.04); }
.product-info { padding: 12px; }
.product-name { font-size: 13px; margin: 0 0 6px; }
.product-name a { color: var(--color-text-dark); }
.product-desc { font-size: 11px; color: var(--color-text-muted); margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.price-current { color: #c0392b; font-size: 16px; font-weight: 600; }

/* Product Detail */
.product-detail-img { margin-bottom: 12px; border-radius: var(--radius-sm); overflow: hidden; }
.product-detail-img img { width: 100%; }
.product-thumbs { display: flex; gap: 6px; flex-wrap: wrap; }
.thumb-item { width: 54px; height: 54px; border-radius: var(--radius-sm); overflow: hidden; cursor: pointer; border: 2px solid transparent; }
.thumb-item:hover { border-color: var(--color-primary); }
.thumb-item img { width: 100%; height: 100%; object-fit: cover; }
.product-detail-title { font-size: 20px; color: var(--color-text-dark); margin: 0 0 14px; }
.product-price-box { margin-bottom: 14px; }
.price-label { color: var(--color-text-muted); font-size: 13px; }
.price-value { color: #c0392b; font-size: 24px; font-weight: 700; }
.product-params { margin-bottom: 18px; }
.param-item { padding: 7px 0; border-bottom: 1px solid var(--color-border-light); font-size: 12px; color: #666; }
.param-item span { color: var(--color-text-muted); }
.product-detail-content { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--color-border-light); }

/* Page */
.class-content { font-size: 14px; line-height: 1.8; }
.page-content .article-detail-title { margin-bottom: 18px; }

/* Form */
.form-row { display: flex; gap: 14px; margin-bottom: 12px; }
.form-row label { flex: 1; display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: #666; }
.inp { width: 100%; padding: 7px 10px; background: #fafafa; border: 1px solid var(--color-border); color: #333; border-radius: var(--radius-sm); font-size: 12px; }
.inp:focus { border-color: var(--color-primary); outline: none; background: #fff; }
.mes { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: #666; margin-bottom: 12px; }
.mes textarea { width: 100%; height: 110px; padding: 7px 10px; background: #fafafa; border: 1px solid var(--color-border); color: #333; border-radius: var(--radius-sm); resize: vertical; font-size: 12px; }
.mes textarea:focus { border-color: var(--color-primary); outline: none; background: #fff; }
.msgbtn-box { display: flex; gap: 10px; }
.btn-contact { background: var(--color-primary); color: #fff; border: none; padding: 9px 24px; border-radius: var(--radius-sm); font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.3s; }
.btn-contact:hover { background: var(--color-primary-dark); }
.btn-contact-reset { background: #fff; color: #888; border: 1px solid var(--color-border); padding: 9px 24px; border-radius: var(--radius-sm); font-size: 13px; cursor: pointer; }

/* Pagination */
.pagination-box { text-align: center; margin-top: 24px; }
.pagination { display: inline-flex; list-style: none; padding: 0; margin: 0; gap: 5px; }
.pagination li a, .pagination li span { display: inline-block; min-width: 34px; height: 34px; line-height: 32px; padding: 0 12px; border: 1px solid var(--color-border); background: #fff; color: #666; text-align: center; border-radius: var(--radius-sm); font-size: 12px; }
.pagination li a:hover { border-color: var(--color-primary); color: var(--color-primary); }
.pagination .active a, .pagination .active span { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* Footer */
#footer { background: #2c343a; color: #999; padding: 36px 0 24px; font-size: 12px; }
#footer h4 { color: #ccc; font-size: 14px; margin-bottom: 10px; }
#footer p { font-size: 11px; margin-bottom: 4px; }
#footer a { color: #bbb; }
#footer a:hover { color: #fff; }
.footer-links ul li { margin-bottom: 5px; }
.footer-links a { font-size: 12px; }

/* Float */
#floatbtn { position: fixed; bottom: 26px; right: 26px; z-index: 999; }
#back-to-top { display: block; width: 40px; height: 40px; background: var(--color-primary); color: #fff; text-align: center; border-radius: var(--radius-sm); line-height: 40px; font-size: 15px; opacity: 0.85; transition: all 0.3s; }
#back-to-top:hover { opacity: 1; transform: translateY(-2px); }
#back-to-top em { display: none; }

/* Responsive */
@media (max-width: 1199px) { .feature-grid { grid-template-columns: repeat(3, 1fr); } .product-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 991px) {
    .hero-inner { flex-direction: column; text-align: center; }
    .hero-btns { justify-content: center; }
    .hero-icon-grid { grid-template-columns: repeat(6, 1fr); gap: 8px; }
    .hero-title { font-size: 28px; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .category-grid { grid-template-columns: repeat(2, 1fr); }
    .image-grid { grid-template-columns: repeat(2, 1fr); }
    .article-item .media-left { display: block; padding-right: 0; }
    .article-item .embed-responsive { width: 100%; margin-bottom: 10px; }
}
@media (max-width: 767px) {
    body { font-size: 13px; }
    .hero-title { font-size: 22px; }
    .hero-icon-grid { grid-template-columns: repeat(3, 1fr); }
    .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .section-title { font-size: 20px; }
    .article-detail-title { font-size: 18px; }
    .form-row { flex-direction: column; }
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
}