@charset "utf-8";
/*
 * GUANZHU —— 深蓝体育数据门户模板
 * 版面：深蓝渐变 Hero + 蓝色主色调 + 白色内容区 + 圆角卡片
 *       + 特性展示条 + 赛事服务网格 + 安全模型 + 用户反馈 + 渐变页脚
 * 依赖：Bootstrap 5.3 / Font Awesome 6.5
 */

/* ==================== 1. 设计变量 ==================== */
:root {
    --gz-bg:          #f5f7fa;
    --gz-bg-alt:      #edf0f5;
    --gz-white:       #ffffff;
    --gz-surface:     #ffffff;

    --gz-primary:     #1a73e8;
    --gz-primary-d:   #1557b0;
    --gz-primary-l:   #5b9cf6;
    --gz-accent:      #f0a030;
    --gz-accent-d:    #d48a1a;

    --gz-dark:        #0d1b2a;
    --gz-dark-2:      #1b2d45;
    --gz-dark-3:      #243b55;

    --gz-hero-from:   #0a1628;
    --gz-hero-to:     #0d4a6b;

    --gz-text:        #1e2a3a;
    --gz-text-2:      #3a4a5c;
    --gz-muted:       #6b7c93;
    --gz-line:        #d8dfe8;
    --gz-line-2:      #c4cdd8;

    --gz-radius:      14px;
    --gz-radius-sm:   10px;
    --gz-radius-xs:   6px;
    --gz-shadow:      0 2px 8px rgba(0, 0, 0, .06);
    --gz-shadow-lg:   0 8px 24px rgba(0, 0, 0, .1);
    --gz-footer-grad: linear-gradient(135deg, #0d1b2a, #1b2d45);
}

/* ==================== 2. 基础 ==================== */
body {
    background: var(--gz-bg);
    color: var(--gz-text);
    font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--gz-text); text-decoration: none; transition: color .2s; }
a:hover { color: var(--gz-primary); }

h1, h2, h3, h4, h5, h6 { font-weight: 700; letter-spacing: .3px; color: var(--gz-text); }
img { max-width: 100%; }
ul, ol { list-style: none; padding: 0; margin: 0; }

.gz-container { max-width: 1200px; }
.gz-muted { color: var(--gz-muted) !important; }
.gz-accent { color: var(--gz-accent) !important; }
.gz-primary { color: var(--gz-primary) !important; }

.gz-clamp-1 { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: block; }
.gz-clamp-2, .gz-clamp-3 { display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden; }
.gz-clamp-2 { -webkit-line-clamp: 2; }
.gz-clamp-3 { -webkit-line-clamp: 3; }
.min-w-0 { min-width: 0; }

/* 通用区块 */
.gz-section { padding: 60px 0; }
.gz-section-alt { background: var(--gz-bg-alt); }

.gz-section-title { text-align: center; margin-bottom: 44px; }
.gz-section-title .sub {
    display: inline-block; font-size: 12px; letter-spacing: 3px; text-transform: uppercase;
    color: var(--gz-primary); margin-bottom: 8px; font-weight: 700;
}
.gz-section-title h2 { font-size: 1.85rem; margin: 0 0 12px; }
.gz-section-title p { color: var(--gz-muted); font-size: 15px; max-width: 760px; margin: 0 auto; }
.gz-section-title .line {
    width: 50px; height: 3px; margin: 14px auto 0; border-radius: 3px;
    background: linear-gradient(to right, var(--gz-primary), var(--gz-accent));
}

/* 按钮 */
.gz-btn, .gz-btn-outline {
    display: inline-flex; align-items: center; gap: 8px;
    padding: .7rem 2rem; border-radius: 60px;
    font-weight: 600; font-size: 14px; transition: .25s; white-space: nowrap;
}
.gz-btn {
    background: var(--gz-primary); color: #fff; border: 0;
}
.gz-btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(26, 115, 232, .35); background: var(--gz-primary-d); }
.gz-btn-accent {
    background: var(--gz-accent); color: #fff; border: 0;
    display: inline-flex; align-items: center; gap: 8px;
    padding: .7rem 2rem; border-radius: 60px;
    font-weight: 700; font-size: 14px; transition: .25s; white-space: nowrap;
}
.gz-btn-accent:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(240, 160, 48, .35); background: var(--gz-accent-d); }
.gz-btn-outline { border: 2px solid rgba(255,255,255,.35); color: #fff; background: transparent; }
.gz-btn-outline:hover { border-color: #fff; color: #fff; transform: translateY(-2px); background: rgba(255,255,255,.1); }

/* ==================== 3. 头部导航 ==================== */
.gz-header {
    background: var(--gz-dark);
    z-index: 1030;
}

.gz-topbar {
    background: var(--gz-dark-2);
    color: rgba(255,255,255,.55);
    font-size: 12px;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255,255,255,.06);
}
.gz-topbar a { color: rgba(255,255,255,.55); }
.gz-topbar a:hover { color: #fff; }
.gz-topbar .gz-container { display: flex; justify-content: space-between; align-items: center; }
.gz-topbar-links { display: flex; gap: 16px; }

.gz-navbar { padding: 0; }
.gz-navbar .navbar-brand {
    font-size: 1.35rem; font-weight: 800; color: #fff;
    padding: 14px 0; letter-spacing: -.5px;
}
.gz-brand-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; border-radius: 8px;
    background: var(--gz-primary); color: #fff; font-size: 15px; margin-right: 8px;
}

.gz-navbar .nav-link {
    font-size: 14px; font-weight: 600; color: rgba(255,255,255,.7);
    padding: 18px 16px !important; transition: .2s; position: relative;
}
.gz-navbar .nav-link:hover,
.gz-navbar .nav-link.active { color: #fff; }
.gz-navbar .nav-link.active::after {
    content: ''; position: absolute; bottom: 0; left: 16px; right: 16px;
    height: 3px; background: var(--gz-accent); border-radius: 3px 3px 0 0;
}

.gz-navbar .dropdown-menu {
    border: 0; box-shadow: var(--gz-shadow-lg); border-radius: var(--gz-radius-sm);
    padding: 8px 0; min-width: 160px; background: var(--gz-dark-2);
}
.gz-navbar .dropdown-item {
    font-size: 13px; padding: 8px 20px; color: rgba(255,255,255,.7);
}
.gz-navbar .dropdown-item:hover { background: var(--gz-dark-3); color: #fff; }

.gz-navbar .navbar-toggler { border-color: rgba(255,255,255,.2); }
.gz-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.7%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.gz-cta-btn {
    background: var(--gz-accent); color: #fff !important;
    font-weight: 700; font-size: 13px; padding: 6px 16px;
    border-radius: 4px; transition: .2s; border: 0;
}
.gz-cta-btn:hover { background: var(--gz-accent-d); color: #fff; transform: translateY(-1px); }

.gz-search-toggle {
    background: none; border: 1px solid rgba(255,255,255,.2); border-radius: 50%;
    width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,.6); cursor: pointer; transition: .2s;
}
.gz-search-toggle:hover { border-color: var(--gz-primary); color: var(--gz-primary); }

.gz-search-bar {
    background: var(--gz-dark-2);
    padding: 12px 0;
    border-top: 1px solid rgba(255,255,255,.06);
}
.gz-search-form .input-group,
.gz-search-form-lg .input-group { max-width: 600px; }
.gz-search-form .form-control,
.gz-search-form-lg .form-control {
    border: 1px solid rgba(255,255,255,.15); border-radius: var(--gz-radius-xs) 0 0 var(--gz-radius-xs);
    background: var(--gz-dark-3); color: #fff;
}
.gz-search-form .form-control::placeholder,
.gz-search-form-lg .form-control::placeholder { color: rgba(255,255,255,.4); }
.gz-search-form .btn,
.gz-search-form-lg .btn {
    background: var(--gz-primary); color: #fff; border: 0;
    border-radius: 0 var(--gz-radius-xs) var(--gz-radius-xs) 0;
    padding: 0 20px;
}
.gz-search-form .btn:hover,
.gz-search-form-lg .btn:hover { background: var(--gz-primary-d); }

/* ==================== 4. Hero 首屏 ==================== */
.gz-hero {
    position: relative;
    background: linear-gradient(135deg, var(--gz-hero-from) 0%, var(--gz-hero-to) 100%);
    padding: 80px 0 70px;
    overflow: hidden;
}
.gz-hero-grid-bg {
    position: absolute; inset: 0;
    background:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size: 40px 40px;
}
.gz-hero h1 { font-size: 2.4rem; line-height: 1.35; color: #fff; font-weight: 800; }
.gz-hero h1 em { font-style: normal; color: var(--gz-accent); }
.gz-hero .lead { color: rgba(255,255,255,.65); font-size: 16px; }
.gz-hero-badge {
    display: inline-block; font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
    color: var(--gz-dark); background: var(--gz-accent); padding: 4px 14px;
    border-radius: 4px; margin-bottom: 16px; font-weight: 700;
}
.gz-hero-buttons { display: flex; gap: 12px; flex-wrap: wrap; }
.gz-hero-visual img { max-width: 420px; width: 100%; border-radius: var(--gz-radius); }

/* ==================== 4.1 特色亮点条 ==================== */
.gz-features-bar { padding: 0; margin-top: -30px; position: relative; z-index: 5; }
.gz-feature-item {
    background: var(--gz-white);
    border-radius: var(--gz-radius);
    padding: 24px 20px;
    display: flex; align-items: center; gap: 16px;
    box-shadow: var(--gz-shadow-lg);
    transition: .3s; height: 100%;
}
.gz-feature-item:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,.12); }
.gz-feature-item .icon {
    flex-shrink: 0; width: 48px; height: 48px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--gz-primary), var(--gz-primary-l));
    color: #fff; font-size: 20px;
}
.gz-feature-item h3 { font-size: 15px; margin-bottom: 4px; }
.gz-feature-item p { color: var(--gz-muted); font-size: 13px; margin-bottom: 0; }

/* ==================== 5. 通用盒子 ==================== */
.gz-box {
    background: var(--gz-white);
    border-radius: var(--gz-radius);
    box-shadow: var(--gz-shadow);
    overflow: hidden;
}
.gz-box-head {
    padding: 16px 24px;
    border-bottom: 1px solid var(--gz-line);
    display: flex; align-items: center; justify-content: space-between;
}
.gz-box-head h1 { font-size: 20px; margin: 0; }
.gz-box-head h3 { font-size: 16px; margin: 0; }
.gz-box-head .more { font-size: 13px; color: var(--gz-muted); white-space: nowrap; }
.gz-box-head .more:hover { color: var(--gz-primary); }
.gz-box-body { padding: 24px; }

/* ==================== 6. 文章卡片 ==================== */
.gz-card {
    background: var(--gz-white);
    border-radius: var(--gz-radius);
    box-shadow: var(--gz-shadow);
    overflow: hidden;
    transition: .3s;
    height: 100%;
}
.gz-card:hover { transform: translateY(-3px); box-shadow: var(--gz-shadow-lg); }
.gz-card-thumb {
    display: block; position: relative; overflow: hidden;
    aspect-ratio: 16 / 10;
}
.gz-card-thumb img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .4s;
}
.gz-card:hover .gz-card-thumb img { transform: scale(1.05); }
.gz-card-overlay {
    position: absolute; inset: 0;
    background: rgba(0,0,0,.4);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: .3s;
    color: #fff; font-size: 20px;
}
.gz-card:hover .gz-card-overlay { opacity: 1; }
.gz-card-body { padding: 16px; }
.gz-card-body h3 { font-size: 15px; margin-bottom: 8px; line-height: 1.5; }
.gz-card-body h3 a:hover { color: var(--gz-primary); }
.gz-card-body .desc { font-size: 13px; color: var(--gz-muted); margin-bottom: 8px; }

/* ==================== 7. 文章列表项（新闻卡片） ==================== */
.gz-news-item {
    display: flex; gap: 16px; padding: 20px;
    background: var(--gz-white);
    border-radius: var(--gz-radius);
    box-shadow: 0 2px 4px rgba(0,0,0,.075);
    border: 1px solid var(--gz-line);
    transition: .3s;
    margin-bottom: 16px;
}
.gz-news-item:hover { transform: translateY(-2px); box-shadow: var(--gz-shadow-lg); border-color: var(--gz-primary-l); }
.gz-news-thumb {
    flex-shrink: 0; width: 180px; height: 130px; border-radius: var(--gz-radius-sm);
    overflow: hidden;
}
.gz-news-thumb img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .4s;
}
.gz-news-item:hover .gz-news-thumb img { transform: scale(1.05); }
.gz-news-content { flex: 1; min-width: 0; display: flex; flex-direction: column; justify-content: center; }
.gz-news-content h3 { font-size: 16px; margin-bottom: 8px; line-height: 1.5; }
.gz-news-content h3 a:hover { color: var(--gz-primary); }
.gz-news-content .desc { font-size: 13px; color: var(--gz-muted); margin-bottom: 10px; }
.gz-news-content .gz-read-more {
    font-size: 13px; font-weight: 600; color: var(--gz-primary);
}
.gz-news-content .gz-read-more:hover { color: var(--gz-primary-d); }

/* 元信息 */
.gz-meta { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; color: var(--gz-muted); }
.gz-meta i { margin-right: 4px; }
.gz-meta a { color: var(--gz-muted); }
.gz-meta a:hover { color: var(--gz-primary); }

/* ==================== 8. 栏目卡片 ==================== */
.gz-cate-card {
    background: var(--gz-white);
    border-radius: var(--gz-radius);
    box-shadow: var(--gz-shadow);
    overflow: hidden;
    transition: .3s; height: 100%;
}
.gz-cate-card:hover { transform: translateY(-3px); box-shadow: var(--gz-shadow-lg); }
.gz-cate-card .thumb {
    display: block; position: relative; overflow: hidden;
    aspect-ratio: 16 / 9;
}
.gz-cate-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.gz-cate-card .badge-cate {
    position: absolute; top: 12px; left: 12px; z-index: 2;
    background: var(--gz-primary); color: #fff; font-size: 12px;
    padding: 3px 12px; border-radius: var(--gz-radius-xs); font-weight: 700;
}
.gz-cate-card .body { padding: 16px; }
.gz-cate-card .body h3 { font-size: 16px; margin-bottom: 6px; }
.gz-cate-card .body h3 a:hover { color: var(--gz-primary); }
.gz-cate-card .body .desc { font-size: 13px; color: var(--gz-muted); margin-bottom: 8px; }
.gz-cate-card .sub-list { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.gz-cate-card .sub-list a {
    font-size: 12px; padding: 2px 10px; border-radius: var(--gz-radius-xs);
    background: var(--gz-bg); color: var(--gz-text-2); transition: .2s;
}
.gz-cate-card .sub-list a:hover { background: var(--gz-primary); color: #fff; }
.gz-cate-card .mini { border-top: 1px solid var(--gz-line); padding-top: 10px; }
.gz-cate-card .mini li { font-size: 13px; line-height: 1.8; }
.gz-cate-card .mini li::before { content: '›'; color: var(--gz-primary); margin-right: 6px; font-weight: 700; }
.gz-cate-card .mini li a:hover { color: var(--gz-primary); }

/* ==================== 9. 标签 ==================== */
.gz-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.gz-tags li a {
    display: inline-block; font-size: 13px; padding: 4px 14px;
    border-radius: var(--gz-radius-xs); background: var(--gz-bg); color: var(--gz-text-2);
    border: 1px solid var(--gz-line); transition: .2s;
}
.gz-tags li a:hover { background: var(--gz-primary); color: #fff; border-color: var(--gz-primary); }

/* ==================== 10. 排行列表 ==================== */
.gz-rank li {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 0; border-bottom: 1px solid var(--gz-line);
    font-size: 14px;
}
.gz-rank li:last-child { border-bottom: 0; }
.gz-rank .rank-num {
    flex-shrink: 0; width: 22px; height: 22px; border-radius: 4px;
    background: var(--gz-bg-alt); color: var(--gz-muted);
    font-size: 12px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
}
.gz-rank .rank-num.top { background: var(--gz-primary); color: #fff; }
.gz-rank li a { color: var(--gz-text-2); }
.gz-rank li a:hover { color: var(--gz-primary); }

/* ==================== 11. 面包屑 ==================== */
.gz-crumb { padding: 16px 0 0; }
.gz-crumb .breadcrumb { background: none; margin: 0; font-size: 13px; }
.gz-crumb .breadcrumb-item a { color: var(--gz-muted); }
.gz-crumb .breadcrumb-item a:hover { color: var(--gz-primary); }
.gz-crumb .breadcrumb-item.active { color: var(--gz-text-2); }
.gz-crumb .breadcrumb-item + .breadcrumb-item::before { content: '>'; color: var(--gz-line-2); }

/* ==================== 12. 文章详情 ==================== */
.gz-page { padding-bottom: 50px; }

.gz-article-title { font-size: 26px; line-height: 1.4; margin-bottom: 16px; }
.gz-article-meta {
    display: flex; flex-wrap: wrap; gap: 16px; font-size: 13px; color: var(--gz-muted);
    padding-bottom: 16px; border-bottom: 1px solid var(--gz-line); margin-bottom: 20px;
}
.gz-article-meta a { color: var(--gz-muted); }
.gz-article-meta a:hover { color: var(--gz-primary); }

.gz-abstract {
    background: var(--gz-bg);
    border-left: 3px solid var(--gz-primary);
    padding: 14px 18px;
    border-radius: 0 var(--gz-radius-sm) var(--gz-radius-sm) 0;
    font-size: 14px; color: var(--gz-text-2);
    margin-bottom: 20px;
}
.gz-abstract .label {
    font-weight: 700; color: var(--gz-primary); margin-right: 8px;
}

.gz-content { font-size: 16px; line-height: 1.9; color: var(--gz-text); }
.gz-content h2 { font-size: 20px; margin: 28px 0 14px; padding-left: 12px; border-left: 4px solid var(--gz-primary); }
.gz-content h3 { font-size: 18px; margin: 22px 0 12px; }
.gz-content p { margin-bottom: 16px; }
.gz-content img { border-radius: var(--gz-radius-sm); margin: 10px 0; }
.gz-content blockquote {
    background: var(--gz-bg); border-left: 3px solid var(--gz-primary);
    padding: 14px 18px; border-radius: 0 var(--gz-radius-sm) var(--gz-radius-sm) 0;
    color: var(--gz-text-2); margin: 16px 0;
}
.gz-content ul, .gz-content ol { padding-left: 24px; margin-bottom: 16px; }
.gz-content ul { list-style: disc; }
.gz-content ol { list-style: decimal; }
.gz-content li { margin-bottom: 6px; }
.gz-content a { color: var(--gz-primary); }
.gz-content a:hover { text-decoration: underline; }
.gz-content table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.gz-content table th, .gz-content table td {
    border: 1px solid var(--gz-line); padding: 10px 14px; text-align: left;
}
.gz-content table th { background: var(--gz-bg); font-weight: 600; }

.gz-statement {
    font-size: 13px; color: var(--gz-muted); background: var(--gz-bg);
    padding: 12px 16px; border-radius: var(--gz-radius-sm); margin-top: 20px;
}

.gz-nextprev { display: flex; gap: 16px; margin-top: 24px; }
.gz-nextprev > div {
    flex: 1; background: var(--gz-bg); border-radius: var(--gz-radius-sm);
    padding: 14px 18px; transition: .2s;
}
.gz-nextprev > div:hover { background: var(--gz-bg-alt); }
.gz-nextprev p { font-size: 13px; color: var(--gz-muted); margin-bottom: 4px; }
.gz-nextprev a { font-size: 15px; font-weight: 500; }
.gz-nextprev a:hover { color: var(--gz-primary); }

/* ==================== 13. 图集 ==================== */
.gz-gallery {
    text-align: center; margin: 20px 0;
    background: #000; border-radius: var(--gz-radius-sm); overflow: hidden;
}
.gz-gallery img { max-height: 70vh; margin: 0 auto; }
.gz-gallery a { display: block; }

/* ==================== 14. 分页 ==================== */
.page-control { text-align: center; padding: 16px 0; }
.page-control a, .page-control span {
    display: inline-block; padding: 6px 14px; margin: 2px;
    border-radius: var(--gz-radius-xs); font-size: 14px;
    background: var(--gz-white); color: var(--gz-text-2);
    border: 1px solid var(--gz-line); transition: .2s;
}
.page-control a:hover, .page-control .current {
    background: var(--gz-primary); color: #fff; border-color: var(--gz-primary);
}

.gz-page .pagination { margin-top: 24px; justify-content: center; }
.gz-page .page-link {
    color: var(--gz-text-2); border-color: var(--gz-line);
    border-radius: var(--gz-radius-xs); margin: 0 2px; font-size: 14px;
}
.gz-page .page-item.active .page-link {
    background: var(--gz-primary); border-color: var(--gz-primary); color: #fff;
}
.gz-page .page-link:hover { color: var(--gz-primary); background: var(--gz-bg); }

/* ==================== 15. 搜索页 ==================== */
.gz-search-form-lg { margin-bottom: 24px; }
.gz-search-title { font-size: 20px; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--gz-line); }

/* ==================== 16. 标签页 ==================== */
.gz-tag-hero {
    display: flex; gap: 16px; align-items: flex-start; margin-bottom: 20px;
    padding-bottom: 20px; border-bottom: 1px solid var(--gz-line);
}
.gz-tag-hero .ico {
    flex-shrink: 0; width: 48px; height: 48px; border-radius: 12px;
    background: linear-gradient(135deg, var(--gz-primary), var(--gz-primary-l));
    color: #fff; display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.gz-tag-hero h1 { font-size: 22px; margin-bottom: 4px; }
.gz-tag-hero p { font-size: 14px; color: var(--gz-muted); margin-bottom: 0; }

/* ==================== 17. 空状态 ==================== */
.gz-empty {
    text-align: center; padding: 40px 20px; color: var(--gz-muted);
}
.gz-empty i { font-size: 48px; margin-bottom: 12px; display: block; opacity: .3; }
.gz-empty p { font-size: 15px; }

/* ==================== 18. 页脚 ==================== */
.gz-footer {
    background: var(--gz-footer-grad);
    color: rgba(255,255,255,.7);
    margin-top: 0;
}
.gz-footer-top { padding-top: 50px; }
.gz-footer h5 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.gz-footer-brand { display: flex; align-items: center; }
.gz-footer-brand .gz-brand-icon { background: var(--gz-primary); }
.gz-footer-desc { font-size: 14px; line-height: 1.7; }
.gz-footer-links { display: flex; gap: 16px; flex-wrap: wrap; }
.gz-footer-links a { color: rgba(255,255,255,.6); font-size: 13px; }
.gz-footer-links a:hover { color: #fff; }
.gz-footer-cates li { margin-bottom: 6px; }
.gz-footer-cates a { color: rgba(255,255,255,.6); font-size: 14px; }
.gz-footer-cates a:hover { color: var(--gz-accent); }
.gz-footer-news li { margin-bottom: 8px; }
.gz-footer-news a { color: rgba(255,255,255,.6); font-size: 14px; }
.gz-footer-news a:hover { color: var(--gz-accent); }

.gz-footer-bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,.35);
}
.gz-footer-bottom a { color: rgba(255,255,255,.45); }
.gz-footer-bottom a:hover { color: var(--gz-accent); }

/* ==================== 19. 返回顶部 ==================== */
.gz-totop {
    position: fixed; bottom: 30px; right: 30px; z-index: 999;
    width: 42px; height: 42px; border-radius: 50%;
    background: var(--gz-primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 14px rgba(26, 115, 232, .35);
    opacity: 0; visibility: hidden; transition: .3s;
    text-decoration: none;
}
.gz-totop.show { opacity: 1; visibility: visible; }
.gz-totop:hover { transform: translateY(-3px); color: #fff; box-shadow: 0 6px 20px rgba(26, 115, 232, .45); }

/* ==================== 20. 响应式 ==================== */
@media (max-width: 991.98px) {
    .gz-hero { padding: 40px 0; }
    .gz-hero h1 { font-size: 1.8rem; }
    .gz-hero-visual { display: none; }
    .gz-section { padding: 40px 0; }
    .gz-section-title { margin-bottom: 28px; }
    .gz-section-title h2 { font-size: 1.5rem; }
    .gz-topbar { display: none; }
    .gz-navbar .nav-link.active::after { display: none; }
    .gz-features-bar { margin-top: 0; padding: 0 16px; }
}

@media (max-width: 767.98px) {
    .gz-news-item { flex-direction: column; }
    .gz-news-thumb { width: 100%; height: 180px; }
    .gz-nextprev { flex-direction: column; }
    .gz-article-title { font-size: 20px; }
    .gz-box-body { padding: 16px; }
    .gz-hero-buttons { flex-direction: column; }
    .gz-hero-buttons a { text-align: center; justify-content: center; }
    .gz-totop { bottom: 20px; right: 16px; width: 38px; height: 38px; }
    .gz-feature-item { padding: 16px; }
}