/* ============ Model 情报局 - Cloudflare 版本样式 ============ */

:root {
    --theme: #e31937;
    --theme-hover: #b91430;
    --theme-rgb: 227 25 55;
    --radius: 16px;
    --radius-lg: 24px;
}

/* 浅色主题 */
[data-color-mode="light"], :root {
    --bg: #f5f5f7;
    --bg-card: #ffffff;
    --border: rgba(0,0,0,0.1);
    --text: #1a1a2e;
    --text-sec: #666666;
    --header-bg: rgba(255,255,255,0.85);
    --card-shadow: 0 4px 20px rgba(0,0,0,0.08);
    --input-bg: rgba(0,0,0,0.03);
    --hover-bg: rgba(0,0,0,0.04);
}

/* 深色主题 */
[data-color-mode="dark"] {
    --bg: #0a0a0f;
    --bg-card: rgba(255,255,255,0.05);
    --border: rgba(255,255,255,0.1);
    --text: #ffffff;
    --text-sec: rgba(255,255,255,0.6);
    --header-bg: rgba(10,10,15,0.85);
    --card-shadow: 0 4px 20px rgba(0,0,0,0.3);
    --input-bg: rgba(255,255,255,0.08);
    --hover-bg: rgba(255,255,255,0.05);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    transition: background 0.3s, color 0.3s;
}

a { color: var(--theme); text-decoration: none; transition: all 0.2s; }
a:hover { opacity: 0.8; }

/* 粒子背景 */
.particles {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

[data-color-mode="light"] .particles { display: none; }

.particle {
    position: absolute;
    width: 2px; height: 2px;
    background: rgba(227,25,55,0.4);
    border-radius: 50%;
    animation: particleFloat 6s ease-in-out infinite;
}

@keyframes particleFloat {
    0%, 100% { transform: translateY(0) translateX(0); opacity: 0; }
    25% { opacity: 0.8; }
    50% { transform: translateY(-80px) translateX(30px); opacity: 0.4; }
    75% { opacity: 0.8; }
}

/* 头部导航 */
.site-header {
    position: sticky; top: 0; z-index: 100;
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    background: var(--header-bg);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s;
}

.header-inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 20px;
}

.logo {
    font-size: 1.2rem; font-weight: 800; color: var(--theme);
    letter-spacing: -0.5px; display: flex; align-items: center; gap: 8px;
    white-space: nowrap; flex-shrink: 0;
}

.logo-icon { font-size: 1.4rem; }

.nav-links {
    display: flex; align-items: center; gap: 4px;
    flex-wrap: nowrap; overflow-x: auto;
    -webkit-overflow-scrolling: touch; scrollbar-width: none;
}

.nav-links::-webkit-scrollbar { display: none; }

.nav-link {
    padding: 8px 14px; border-radius: 12px;
    font-size: 0.9rem; font-weight: 500;
    color: var(--text-sec); transition: all 0.2s;
    white-space: nowrap; flex-shrink: 0;
}

.nav-link:hover { background: var(--hover-bg); color: var(--text); }
.nav-link.active { color: var(--theme); font-weight: 600; }

.nav-search { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }

.nav-search input {
    width: 120px; padding: 7px 12px;
    border-radius: 10px; border: 1px solid var(--border);
    background: var(--input-bg); color: var(--text);
    font-size: 0.85rem; outline: none;
    transition: width 0.3s, border-color 0.2s;
}

.nav-search input:focus { width: 160px; border-color: var(--theme); }

.nav-search button { background: none; border: none; color: var(--text-sec); cursor: pointer; font-size: 1rem; padding: 4px; }

.nav-toggle {
    display: none; background: none; border: none;
    color: var(--text); font-size: 1.4rem; cursor: pointer; padding: 4px;
}

/* 语言选择器 */
.lang-selector { position: relative; display: inline-block; }

.lang-menu {
    display: none;
    position: absolute; top: 100%; right: 0;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 12px; padding: 8px; min-width: 140px;
    z-index: 100; box-shadow: var(--card-shadow);
}

.lang-menu a {
    display: block; padding: 8px 12px; border-radius: 8px;
    font-size: 0.85rem; color: var(--text);
}

.lang-menu a:hover { background: var(--hover-bg); }

/* 移动端导航 */
.nav-mobile {
    display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5); z-index: 200;
    backdrop-filter: blur(4px);
}

.nav-mobile.open { display: block; }

.nav-mobile-content {
    position: absolute; top: 0; right: 0;
    width: 280px; height: 100%;
    background: var(--bg-card); padding: 20px;
    overflow-y: auto;
    animation: slideIn 0.3s ease;
    border-left: 1px solid var(--border);
}

@keyframes slideIn {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

.nav-mobile-close { display: flex; justify-content: flex-end; margin-bottom: 20px; }

.nav-mobile-close button { background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

.nav-mobile-link {
    display: block; padding: 14px 16px;
    border-radius: 12px; font-size: 1rem; font-weight: 500;
    color: var(--text); transition: all 0.2s;
}

.nav-mobile-link:hover { background: var(--hover-bg); }
.nav-mobile-link.active { color: var(--theme); font-weight: 600; }

.nav-mobile-search { margin-top: 16px; padding: 16px; border-top: 1px solid var(--border); }
.nav-mobile-search form { display: flex; gap: 8px; }

.nav-mobile-search input {
    flex: 1; padding: 10px 14px;
    border-radius: 12px; border: 1px solid var(--border);
    background: var(--input-bg); color: var(--text);
    font-size: 0.95rem; outline: none;
}

.nav-mobile-search button {
    padding: 10px 16px; border-radius: 12px;
    background: var(--theme); color: white;
    border: none; font-weight: 600; cursor: pointer;
}

/* 布局 */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; position: relative; z-index: 1; }
.main-layout { display: flex; gap: 24px; padding: 24px 0; }
.content-area { flex: 1; min-width: 0; }
.sidebar-right { width: 300px; flex-shrink: 0; position: sticky; top: 80px; align-self: flex-start; }

/* 文章卡片 */
.feed-grid { display: flex; flex-direction: column; gap: 20px; }

.feed-card {
    display: flex; gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden; transition: all 0.3s; cursor: pointer;
    box-shadow: var(--card-shadow);
}

.feed-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(227,25,55,0.12);
}

.feed-card-image { width: 320px; height: 220px; flex-shrink: 0; overflow: hidden; }
.feed-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.feed-card:hover .feed-card-image img { transform: scale(1.05); }

.feed-card-body {
    flex: 1; padding: 24px 24px 24px 0;
    display: flex; flex-direction: column; justify-content: center; min-width: 0;
}

.feed-card-meta { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.15em; color: var(--text-sec); margin-bottom: 8px; }

.feed-card-title {
    font-size: 1.25rem; font-weight: 700; line-height: 1.4; margin-bottom: 8px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    color: var(--text);
}

.feed-card-summary { font-size: 0.9rem; color: var(--text-sec); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

.feed-card-tag {
    display: inline-block; padding: 3px 10px; border-radius: 8px; font-size: 0.75rem; font-weight: 600;
    background: rgba(var(--theme-rgb),0.1); color: var(--theme); margin-top: 12px;
}

/* 侧边栏 */
.sidebar-widget {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 20px; margin-bottom: 16px;
    box-shadow: var(--card-shadow);
}

.sidebar-widget-title { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.15em; color: var(--text-sec); margin-bottom: 12px; }

.sidebar-link {
    display: block; padding: 8px 12px; border-radius: 10px; font-size: 0.85rem;
    color: var(--text); transition: all 0.2s;
}

.sidebar-link:hover { background: var(--hover-bg); }

/* 分类导航 */
.category-nav { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 20px; }

.cat-btn {
    padding: 6px 14px; border-radius: 10px; font-size: 0.85rem; font-weight: 500;
    background: var(--bg-card); border: 1px solid var(--border);
    color: var(--text-sec); transition: all 0.2s; cursor: pointer;
}

.cat-btn:hover, .cat-btn.active { background: var(--theme); color: white; border-color: var(--theme); }

/* 英雄区 */
.hero { padding: 40px 0 24px; }
.hero h1 { font-size: 1.8rem; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 8px; color: var(--theme); }

/* 分页 */
.pagination { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 32px 0; }

.page-btn {
    padding: 10px 20px; border-radius: 12px; font-size: 0.9rem; font-weight: 600;
    background: var(--bg-card); border: 1px solid var(--border);
    color: var(--text); transition: all 0.2s; cursor: pointer;
}

.page-btn:hover { border-color: var(--theme); color: var(--theme); }

.page-info { color: var(--text-sec); font-size: 0.85rem; }

/* 页脚 */
.site-footer {
    padding: 32px 20px; text-align: center;
    color: var(--text-sec); font-size: 0.85rem;
    border-top: 1px solid var(--border); margin-top: 40px;
}

.theme-toggle {
    display: inline-flex; border-radius: 9999px;
    border: 1px solid var(--border); padding: 3px; margin-top: 12px;
}

.theme-btn {
    width: 32px; height: 32px; border: none; border-radius: 9999px;
    background: transparent; color: var(--text-sec); cursor: pointer;
    display: flex; align-items: center; justify-content: center; transition: all 0.2s;
}

.theme-btn.active { background: var(--theme); color: white; box-shadow: 0 2px 8px rgba(227,25,55,0.3); }

/* 响应式 */
@media (max-width: 1024px) {
    .sidebar-right { display: none; }
    .main-layout { padding: 16px 0; }
}

@media (max-width: 768px) {
    .header-inner { padding: 10px 16px; }
    .logo { font-size: 1.1rem; }
    .nav-links { display: none !important; }
    .nav-search { display: none !important; }
    .nav-toggle { display: block; }
    .feed-card { flex-direction: column; }
    .feed-card-image { width: 100%; height: 200px; }
    .feed-card-body { padding: 16px; }
    .hero { padding: 24px 0 16px; }
    .hero h1 { font-size: 1.5rem; }
    .container { padding: 0 16px; }
    .category-nav { gap: 4px; }
    .cat-btn { padding: 5px 10px; font-size: 0.8rem; }
}

@media (max-width: 480px) {
    .feed-card-image { height: 180px; }
}

/* ============ 文章详情 ============ */
.article-detail { max-width: 800px; margin: 0 auto; padding: 40px 20px; }
.article-header { margin-bottom: 32px; }
.article-header h1 { font-size: 2rem; font-weight: 800; line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 12px; color: var(--text); }
.article-meta { display: flex; flex-wrap: wrap; gap: 16px; font-size: 0.85rem; color: var(--text-sec); }
.article-cover { width: 100%; border-radius: var(--radius); margin-bottom: 32px; overflow: hidden; }
.article-cover img { width: 100%; display: block; }
.article-content { font-size: 1.05rem; line-height: 1.9; color: var(--text); }
.article-content h3 { font-size: 1.3rem; font-weight: 700; margin: 32px 0 16px; color: var(--text); }
.article-content p { margin-bottom: 20px; }
.article-content figure { margin: 24px 0; }
.article-content figure img { width: 100%; border-radius: var(--radius); }
.article-content blockquote { border-left: 3px solid var(--theme); padding: 16px 20px; margin: 24px 0; background: rgba(var(--theme-rgb),0.05); border-radius: 0 12px 12px 0; font-style: italic; color: var(--text); }
.article-content strong { font-weight: 700; }
.article-disclaimer { margin-top: 40px; padding: 16px 20px; background: var(--input-bg); border-radius: 12px; font-size: 0.85rem; color: var(--text-sec); border: 1px solid var(--border); }
.back-link { display: inline-flex; align-items: center; gap: 6px; padding: 12px 0; color: var(--text-sec); font-size: 0.9rem; font-weight: 500; }
.back-link:hover { color: var(--text); }

/* 分享按钮 */
.share-buttons { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.share-label { font-size: 0.85rem; color: var(--text-sec); }
.share-btn { display: inline-flex; align-items: center; gap: 4px; padding: 6px 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg-card); color: var(--text); font-size: 0.8rem; cursor: pointer; transition: all 0.2s; }
.share-btn:hover { background: var(--theme); color: white; border-color: var(--theme); }

/* 粒子 */
.particles { position: fixed; top: 0; left: 0; width: 100%; height: 100%; overflow: hidden; pointer-events: none; z-index: 0; }
[data-color-mode="light"] .particles { display: none; }
.particle { position: absolute; width: 2px; height: 2px; background: rgba(227,25,55,0.4); border-radius: 50%; animation: pf 6s ease-in-out infinite; }
@keyframes pf { 0%,100%{transform:translateY(0);opacity:0} 25%{opacity:.8} 50%{transform:translateY(-80px);opacity:.4} 75%{opacity:.8} }