:root {
    --primary: #e66000;
    --primary-dark: #c04e00;
    --primary-light: #fff4eb;
    --accent: #1a73e8;
    --accent-light: #e8f0fe;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-light: #80868b;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-lighter: #f1f3f4;
    --border: #dadce0;
    --border-light: #e8eaed;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --transition: 0.25s ease;
    --transition-slow: 0.35s cubic-bezier(0.4,0,0.2,1);
    --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
    --max-width: 1280px;
    --header-height: 64px;
    --sidebar-width: 320px;
    --gap: 28px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-height);-webkit-text-size-adjust:100%;}
body{font-family:var(--font-sans);background:var(--bg-light);color:var(--text-primary);line-height:1.6;min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;overflow-x:hidden;}
img{max-width:100%;height:auto;display:block;}
a{text-decoration:none;color:inherit;}
ul,ol{list-style:none;}
button{cursor:pointer;font-family:inherit;border:none;background:none;}
input{font-family:inherit;border:none;outline:none;}

/* ========== 公共头部（与首页统一）========== */
.top-bar{background:#202124;color:#fff;text-align:center;padding:7px 16px;font-size:0.82rem;position:relative;z-index:1001;overflow:hidden;}
.top-bar__marquee{display:inline-block;white-space:nowrap;animation:marquee 35s linear infinite;}
.top-bar__marquee span{margin-right:50px;}
.top-bar__dot{display:inline-block;width:6px;height:6px;background:#34a853;border-radius:50%;margin-right:8px;animation:pulse-dot 2s infinite;}
@keyframes marquee{0%{transform:translateX(60vw);}100%{transform:translateX(-100%);}}
@keyframes pulse-dot{0%,100%{opacity:1;transform:scale(1);}50%{opacity:0.4;transform:scale(1.5);}}

.site-header{background:var(--bg-white);position:sticky;top:0;z-index:1000;border-bottom:1px solid var(--border-light);box-shadow:var(--shadow-sm);height:var(--header-height);}
.header-inner{max-width:var(--max-width);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo__icon{width:40px;height:40px;background:var(--primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.2rem;}
.logo__text{font-size:1.25rem;font-weight:700;color:var(--text-primary);white-space:nowrap;}
.logo__text span{color:var(--primary);}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav__link{padding:8px 16px;border-radius:20px;font-size:0.93rem;font-weight:500;color:var(--text-secondary);transition:all var(--transition);white-space:nowrap;}
.main-nav__link:hover,.main-nav__link.active{color:var(--primary);background:var(--primary-light);}
.main-nav__link.active{font-weight:600;}
.header-search{display:flex;align-items:center;background:var(--bg-lighter);border-radius:24px;padding:6px 8px 6px 16px;gap:6px;border:2px solid transparent;flex-shrink:1;max-width:260px;width:100%;}
.header-search:focus-within{border-color:var(--primary);background:var(--bg-white);box-shadow:0 0 0 4px rgba(230,96,0,0.1);}
.header-search input{flex:1;background:transparent;font-size:0.88rem;color:var(--text-primary);min-width:0;}
.header-search button{width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;}
.hamburger{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer;}
.hamburger span{display:block;width:24px;height:2.5px;background:var(--text-primary);border-radius:3px;transition:all var(--transition);}
.hamburger.active span:nth-child(1){transform:translateY(7.5px) rotate(45deg);}
.hamburger.active span:nth-child(2){opacity:0;}
.hamburger.active span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg);}
.mobile-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:999;opacity:0;transition:opacity var(--transition-slow);}
.mobile-overlay.active{display:block;opacity:1;}

/* ========== 主布局 ========== */
.main-container{max-width:var(--max-width);margin:0 auto;padding:24px 24px 48px;display:flex;gap:var(--gap);align-items:flex-start;}
.content-area{flex:1;min-width:0;}
.sidebar{width:var(--sidebar-width);flex-shrink:0;display:flex;flex-direction:column;gap:24px;}

/* ========== 面包屑 ========== */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:0.82rem;color:var(--text-light);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--primary);transition:color var(--transition);}
.breadcrumb a:hover{color:var(--primary-dark);text-decoration:underline;}
.breadcrumb span{color:var(--text-secondary);}

/* ========== 列表页头部 ========== */
.list-header{margin-bottom:24px;}
.list-header__title{font-size:1.6rem;font-weight:800;color:var(--text-primary);margin-bottom:6px;display:flex;align-items:center;gap:10px;}
.list-header__title::before{content:'';width:5px;height:26px;background:var(--primary);border-radius:3px;flex-shrink:0;}
.list-header__desc{font-size:0.9rem;color:var(--text-secondary);}

/* ========== 列表项 ========== */
.article-list{display:flex;flex-direction:column;gap:16px;margin-bottom:28px;}
.article-list-item{display:flex;gap:20px;background:var(--bg-white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);cursor:pointer;transition:all var(--transition-slow);padding:0;}
.article-list-item:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);}
.article-list-item__thumb{width:280px;flex-shrink:0;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#fff4eb,#fde0cc);position:relative;}
.article-list-item__thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow);}
.article-list-item:hover .article-list-item__thumb img{transform:scale(1.06);}
.article-list-item__badge{position:absolute;top:10px;left:10px;background:var(--primary);color:#fff;padding:3px 10px;border-radius:12px;font-size:0.7rem;font-weight:600;z-index:2;}
.article-list-item__body{padding:18px 20px 18px 0;flex:1;display:flex;flex-direction:column;min-width:0;}
.article-list-item__category{font-size:0.72rem;font-weight:600;color:var(--primary);text-transform:uppercase;letter-spacing:0.04em;margin-bottom:6px;}
.article-list-item__title{font-size:1.15rem;font-weight:700;line-height:1.45;margin-bottom:8px;color:var(--text-primary);transition:color var(--transition);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.article-list-item:hover .article-list-item__title{color:var(--primary);}
.article-list-item__desc{font-size:0.88rem;color:var(--text-secondary);line-height:1.6;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1;}
.article-list-item__meta{display:flex;align-items:center;gap:16px;font-size:0.78rem;color:var(--text-light);}
.article-list-item__meta span{display:flex;align-items:center;gap:4px;}

/* ========== 分页 ========== */
.pagination{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:8px;}
.pagination a,.pagination span{padding:10px 16px;border-radius:var(--radius-sm);font-size:0.9rem;font-weight:500;transition:all var(--transition);color:var(--text-secondary);background:var(--bg-white);border:1px solid var(--border);}
.pagination a:hover{background:var(--primary-light);color:var(--primary);border-color:var(--primary);}
.pagination .active{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:700;}
.pagination .disabled{opacity:0.4;pointer-events:none;}

/* ========== 侧边栏卡片（与首页统一）========== */
.sidebar-card{background:var(--bg-white);border-radius:var(--radius-lg);padding:18px 20px;box-shadow:var(--shadow-sm);}
.sidebar-card__title{font-size:1rem;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;color:var(--text-primary);}
.sidebar-card__title::after{content:'';flex:1;height:1px;background:var(--border-light);}
.hot-list{display:flex;flex-direction:column;gap:12px;}
.hot-list__item{display:flex;gap:10px;padding:4px;border-radius:var(--radius-sm);transition:background var(--transition);cursor:pointer;}
.hot-list__item:hover{background:var(--bg-lighter);}
.hot-list__rank{font-size:1.3rem;font-weight:800;color:#d0d5dd;width:26px;text-align:center;flex-shrink:0;}
.hot-list__item:nth-child(1) .hot-list__rank,
.hot-list__item:nth-child(2) .hot-list__rank,
.hot-list__item:nth-child(3) .hot-list__rank{color:var(--accent);}
.hot-list__info{flex:1;min-width:0;}
.hot-list__title{font-size:0.85rem;font-weight:500;line-height:1.4;color:var(--text-primary);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.hot-list__views{font-size:0.7rem;color:var(--text-light);margin-top:2px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{padding:5px 12px;border-radius:16px;font-size:0.78rem;font-weight:500;background:var(--bg-lighter);color:var(--text-secondary);transition:all var(--transition);}
.tag-cloud a:hover{background:var(--primary);color:#fff;}
.ad-card{background:var(--bg-white);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm);text-align:center;border:2px dashed var(--border);color:var(--text-light);transition:all var(--transition);cursor:pointer;}
.ad-card:hover{border-color:var(--primary);background:#fffaf7;}
.ad-card__icon{font-size:2rem;margin-bottom:6px;}
.ad-card h4{font-size:0.95rem;font-weight:600;color:var(--text-primary);margin-bottom:4px;}
.ad-card p{font-size:0.75rem;}
.subscribe-card{background:linear-gradient(135deg,#e66000,#b34d00);color:#fff;text-align:center;padding:20px;border-radius:var(--radius-lg);}
.subscribe-card h3{font-size:1rem;margin-bottom:6px;}
.subscribe-card p{font-size:0.78rem;opacity:0.9;margin-bottom:12px;}
.subscribe-card__form{display:flex;gap:6px;}
.subscribe-card__form input{flex:1;padding:10px 12px;border-radius:20px;font-size:0.8rem;background:rgba(255,255,255,0.2);border:1px solid rgba(255,255,255,0.4);color:#fff;}
.subscribe-card__form input::placeholder{color:rgba(255,255,255,0.7);}
.subscribe-card__form button{padding:10px 16px;border-radius:20px;background:#fff;color:var(--primary);font-weight:700;font-size:0.8rem;}

/* ========== 公共底部（与首页统一）========== */
.site-footer{background:#202124;color:#9aa0a6;padding:40px 24px 20px;margin-top:auto;}
.footer-inner{max-width:var(--max-width);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col h4{color:#fff;font-size:1rem;font-weight:600;margin-bottom:14px;}
.footer-col p,.footer-col li{font-size:0.85rem;line-height:1.7;}
.footer-col ul{display:flex;flex-direction:column;gap:6px;}
.footer-col ul li a{color:#9aa0a6;transition:color var(--transition);}
.footer-col ul li a:hover{color:#fff;}
.footer-bottom{max-width:var(--max-width);margin:24px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,0.1);text-align:center;font-size:0.75rem;}

/* ========== 响应式 ========== */
@media (max-width:1024px){
    .main-container{gap:20px;padding:20px;}
    .sidebar{width:280px;}
    .article-list-item__thumb{width:220px;}
    .article-list-item__title{font-size:1.05rem;}
    .footer-inner{grid-template-columns:1fr 1fr;gap:24px;}
}
@media (max-width:767px){
    .header-inner{padding:0 14px;}
    .logo__icon{width:34px;height:34px;font-size:1rem;}
    .logo__text{font-size:1.05rem;}
    .main-nav{position:fixed;top:0;right:-100%;width:280px;height:100vh;background:var(--bg-white);flex-direction:column;padding:80px 24px 32px;gap:2px;z-index:1000;box-shadow:var(--shadow-lg);transition:right var(--transition-slow);}
    .main-nav.active{right:0;}
    .main-nav__link{padding:12px 16px;border-radius:var(--radius-sm);font-size:1rem;}
    .hamburger{display:flex;}
    .mobile-overlay.active{display:block;opacity:1;}
    .header-search{max-width:160px;}
    .main-container{flex-direction:column;gap:20px;padding:16px 14px 32px;}
    .sidebar{width:100%;}
    .article-list-item{flex-direction:column;}
    .article-list-item__thumb{width:100%;aspect-ratio:16/9;}
    .article-list-item__body{padding:14px 16px 16px;}
    .pagination{gap:4px;flex-wrap:wrap;}
    .pagination a,.pagination span{padding:8px 12px;font-size:0.82rem;}
    .footer-inner{grid-template-columns:1fr;gap:20px;}
}
@media (max-width:399px){
    .list-header__title{font-size:1.3rem;}
    .article-list-item__title{font-size:0.95rem;}
}