/* ========== g.abc16.com · 简洁科技感设计系统 ========== */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --c-bg:#f8f9fb;--c-surface:#fff;--c-surface-2:#f1f5f9;
  --c-text:#0f172a;--c-text-2:#475569;--c-text-3:#94a3b8;
  --c-border:#e2e8f0;--c-border-d:#cbd5e1;
  --c-accent:#3b82f6;--c-accent-d:#2563eb;--c-accent-l:#eff6ff;
  --c-success:#10b981;--c-warn:#f59e0b;--c-danger:#ef4444;
  --r:10px;--r-s:6px;--r-l:16px;
  --maxw:1140px;--side:280px;
  --shadow:0 1px 3px rgba(0,0,0,.06);
  --shadow-h:0 8px 24px rgba(0,0,0,.08);
  --font:"Noto Sans CJK SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:"SF Mono","Fira Code","Cascadia Code",monospace;
  /* 向后兼容别名 */
  --c-primary:var(--c-accent);--c-primary-d:var(--c-accent-d);--c-primary-l:var(--c-accent-l);
  --c-card:var(--c-surface);--c-border-l:var(--c-border-d);
  --grad:linear-gradient(135deg,var(--c-accent),#6366f1);
  --radius:var(--r);--radius-s:var(--r-s);
  --shadow-s:var(--shadow);--shadow-m:var(--shadow-h);--shadow-l:var(--shadow-h);
}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--c-text);background:var(--c-bg);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased}
a{color:var(--c-accent);text-decoration:none;transition:color .15s}
a:hover{color:var(--c-accent-d)}
img{max-width:100%;display:block}
::selection{background:var(--c-accent);color:#fff}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:#0f172a;color:#fff;border-bottom:1px solid #1e293b}
.header-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:18px;font-weight:700;color:#fff;letter-spacing:-.3px;display:flex;align-items:center;gap:8px}
.logo span{color:var(--c-accent)}
.logo .dot{width:6px;height:6px;border-radius:50%;background:var(--c-success);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.nav-links{display:flex;gap:2px;list-style:none}
.nav-links a{font-size:13px;color:#94a3b8;font-weight:500;padding:6px 14px;border-radius:6px;transition:all .15s}
.nav-links a:hover,.nav-links a.active{background:#1e293b;color:#fff}

/* ===== Layout ===== */
.container{max-width:var(--maxw);margin:0 auto;padding:28px 24px}
.layout{display:grid;grid-template-columns:1fr var(--side);gap:24px;align-items:start}
.main-col{min-width:0}
.sidebar{position:sticky;top:72px;display:flex;flex-direction:column;gap:16px}

/* ===== Hero ===== */
.hero{background:#0f172a;color:#fff;border-radius:var(--r-l);padding:36px 32px;margin-bottom:20px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at top right,rgba(59,130,246,.15),transparent 60%);pointer-events:none}
.hero h1{font-size:24px;font-weight:700;margin-bottom:8px;position:relative}
.hero p{color:#94a3b8;font-size:13px;max-width:500px;position:relative;margin-bottom:20px}
.hero-stats{display:flex;gap:24px;position:relative}
.hero-stat .num{font-size:22px;font-weight:700;color:var(--c-accent)}
.hero-stat .label{font-size:11px;color:#64748b;text-transform:uppercase;letter-spacing:.5px;margin-top:2px}

/* ===== Category Bar ===== */
.category-bar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:20px}
.category-bar a{background:var(--c-surface);border:1px solid var(--c-border);color:var(--c-text-2);padding:4px 14px;border-radius:6px;font-size:12px;font-weight:500;transition:all .15s}
.category-bar a:hover,.category-bar a.active{background:var(--c-accent);color:#fff;border-color:var(--c-accent)}

/* ===== Section Title ===== */
.section-title{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;color:var(--c-text)}
.section-title::before{content:"";width:3px;height:16px;background:var(--c-accent);border-radius:2px}
.section-title .more{margin-left:auto;font-size:12px;font-weight:500;color:var(--c-accent)}

/* ===== Article Grid ===== */
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:24px}
.card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r);transition:all .2s;cursor:pointer;display:flex;flex-direction:column;overflow:hidden}
.card:hover{border-color:var(--c-accent);box-shadow:var(--shadow-h);transform:translateY(-1px)}
.card-body{padding:16px;flex:1;display:flex;flex-direction:column}
.card-cat{display:inline-block;font-size:10px;font-weight:600;color:var(--c-accent);background:var(--c-accent-l);padding:2px 8px;border-radius:4px;margin-bottom:8px;align-self:flex-start;font-family:var(--mono);text-transform:uppercase;letter-spacing:.3px}
.card h3{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:6px;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{font-size:12px;color:var(--c-text-2);line-height:1.6;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.card-meta{font-size:11px;color:var(--c-text-3);display:flex;align-items:center;gap:6px}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-text-3)}

/* ===== List ===== */
.article-list{display:flex;flex-direction:column;margin-bottom:24px}
.list-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--c-border)}
.list-item:last-child{border-bottom:none}
.list-item .num{font-size:18px;font-weight:700;color:var(--c-accent);min-width:24px;font-family:var(--mono)}
.list-item .info{flex:1;min-width:0}
.list-item .info h3{font-size:14px;font-weight:600;line-height:1.5;margin-bottom:3px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.list-item .info p{font-size:12px;color:var(--c-text-2);margin:0 0 3px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.list-item .info .meta{font-size:11px;color:var(--c-text-3)}

/* ===== Sidebar Widgets ===== */
.widget{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r);padding:18px}
.widget h3{font-size:14px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.widget h3::before{content:"";width:3px;height:14px;background:var(--c-accent);border-radius:2px}
.widget ul{list-style:none}
.widget-list li{padding:7px 0;border-bottom:1px solid var(--c-surface-2)}
.widget-list li:last-child{border-bottom:none}
.widget-list a{font-size:13px;color:var(--c-text);line-height:1.5;display:block;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.widget-list a:hover{color:var(--c-accent)}
.widget-list .rank{display:inline-block;width:18px;height:18px;border-radius:4px;background:var(--c-text-3);color:#fff;font-size:10px;font-weight:700;text-align:center;line-height:18px;margin-right:6px;font-family:var(--mono)}
.widget-list li:nth-child(1) .rank{background:var(--c-danger)}
.widget-list li:nth-child(2) .rank{background:var(--c-warn)}
.widget-list li:nth-child(3) .rank{background:var(--c-accent)}

.tool-card{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid var(--c-surface-2)}
.tool-card:last-child{border-bottom:none}
.tool-icon{width:32px;height:32px;border-radius:8px;background:#0f172a;display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:700;flex-shrink:0}
.tool-info h4{font-size:13px;margin-bottom:1px}
.tool-info p{font-size:11px;color:var(--c-text-3);margin:0}

.widget-cta{background:var(--c-accent);color:#fff;text-align:center;padding:20px;border-radius:var(--r)}
.widget-cta h3{color:#fff;font-size:15px;margin-bottom:4px}
.widget-cta h3::before{display:none}
.widget-cta p{font-size:12px;color:rgba(255,255,255,.8);margin-bottom:12px}
.widget-cta .btn{display:inline-block;background:#fff;color:var(--c-accent-d);padding:7px 20px;border-radius:6px;font-size:13px;font-weight:600}

/* ===== Ad / CTA ===== */
.ad-zone{margin:16px 0;text-align:center;min-height:60px;background:var(--c-surface-2);border:1px dashed var(--c-border-d);border-radius:var(--r-s);display:flex;align-items:center;justify-content:center;color:var(--c-text-3);font-size:12px}
.cta-box{background:#0f172a;color:#fff;border-radius:var(--r-l);padding:28px;text-align:center;margin:20px 0;position:relative;overflow:hidden}
.cta-box::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at top right,rgba(59,130,246,.2),transparent 50%)}
.cta-box h3{color:#fff;font-size:18px;margin-bottom:6px;position:relative}
.cta-box p{color:#94a3b8;margin-bottom:14px;font-size:13px;position:relative}
.cta-btn{display:inline-block;background:var(--c-accent);color:#fff;padding:10px 32px;border-radius:6px;font-weight:600;font-size:14px;transition:all .15s;position:relative}
.cta-btn:hover{background:var(--c-accent-d);transform:scale(1.02)}

/* ===== Affiliate ===== */
.affiliate-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin:16px 0}
.affiliate-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-s);padding:16px;transition:all .2s}
.affiliate-card:hover{border-color:var(--c-accent);box-shadow:var(--shadow)}
.affiliate-card h4{font-size:14px;margin-bottom:4px}
.affiliate-card p{font-size:12px;color:var(--c-text-2);margin-bottom:10px}
.affiliate-card .btn{display:inline-block;background:var(--c-success);color:#fff;padding:5px 16px;border-radius:5px;font-size:12px;font-weight:600}

/* ===== Article Detail ===== */
.breadcrumb{font-size:12px;color:var(--c-text-3);margin-bottom:12px;font-family:var(--mono)}
.breadcrumb a{color:var(--c-text-3)}
.breadcrumb span{margin:0 4px}
.article-head{margin-bottom:20px}
.article-head h1{font-size:24px;line-height:1.4;font-weight:700;margin-bottom:8px;letter-spacing:-.3px}
.article-meta{font-size:12px;color:var(--c-text-3)}
.article-meta .tag{display:inline-block;background:var(--c-accent-l);color:var(--c-accent-d);padding:2px 8px;border-radius:4px;font-size:11px;margin-left:6px}
.article-body{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-l);padding:32px;box-shadow:var(--shadow)}
.article-body h2{font-size:19px;font-weight:700;margin:28px 0 12px;padding-bottom:6px;border-bottom:1px solid var(--c-border)}
.article-body h3{font-size:16px;font-weight:600;margin:20px 0 8px}
.article-body p{margin-bottom:14px;color:#334155}
.article-body ul,.article-body ol{margin:0 0 14px 22px}
.article-body li{margin-bottom:4px}
.article-body blockquote{border-left:3px solid var(--c-accent);background:var(--c-accent-l);padding:12px 18px;margin:0 0 14px;border-radius:0 var(--r-s) var(--r-s) 0;color:var(--c-accent-d);font-weight:500}
.article-body code{background:var(--c-surface-2);padding:2px 6px;border-radius:4px;font-size:13px;font-family:var(--mono)}
.article-body img{border-radius:var(--r-s);margin:14px 0}
.article-body strong{color:var(--c-text)}
.article-body table{width:100%;border-collapse:collapse;margin:14px 0;font-size:13px}
.article-body th{background:#0f172a;color:#fff;padding:8px 12px;text-align:left;font-weight:600;font-size:12px}
.article-body td{padding:8px 12px;border:1px solid var(--c-border)}

/* FAQ */
.faq-section{background:var(--c-accent-l);border-radius:var(--r);padding:22px 24px;margin:24px 0;border:1px solid #dbeafe}
.faq-section h2{border-bottom:none;margin-top:0}
.faq-item{margin-bottom:14px}
.faq-item:last-child{margin-bottom:0}
.faq-item h3{color:var(--c-accent-d);margin-bottom:4px;font-size:14px}
.faq-item p{color:#334155;margin:0;font-size:13px}

/* Related */
.related{margin-top:28px}
.related h2{font-size:17px;margin-bottom:12px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.related-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-s);padding:14px;transition:all .2s}
.related-card:hover{border-color:var(--c-accent);box-shadow:0 2px 8px rgba(59,130,246,.08)}
.related-card h4{font-size:13px;line-height:1.5;margin-bottom:4px}
.related-card .date{font-size:11px;color:var(--c-text-3)}

/* ===== Reward Banner ===== */
.reward-banner{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-l);padding:28px;text-align:center;margin:24px 0}
.reward-banner h3{font-size:17px;font-weight:700;color:var(--c-text);margin-bottom:4px}
.reward-banner p{font-size:13px;color:var(--c-text-2);margin-bottom:16px}
.reward-qr{display:flex;gap:16px;justify-content:center;margin:14px 0}
.reward-qr-item{text-align:center}
.reward-qr-item .qr-box{width:90px;height:90px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-s);padding:5px;display:flex;align-items:center;justify-content:center}
.reward-qr-item .qr-label{font-size:11px;color:var(--c-text-3);margin-top:4px}
.reward-qr-item .qr-box svg{width:100%;height:100%}
.reward-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.reward-actions a{display:inline-flex;align-items:center;gap:5px;padding:8px 22px;border-radius:6px;font-size:13px;font-weight:600;transition:all .15s}
.reward-actions a:hover{transform:scale(1.03)}
.reward-actions .btn-tip{background:var(--c-warn);color:#fff}
.reward-actions .btn-vip{background:var(--c-accent);color:#fff}
.reward-actions .btn-share{background:var(--c-success);color:#fff}

/* ===== Footer ===== */
.site-footer{background:#0f172a;color:var(--c-text-3);padding:32px 24px;margin-top:40px}
.footer-inner{max-width:var(--maxw);margin:0 auto;display:flex;flex-wrap:wrap;gap:32px;justify-content:space-between}
.footer-col h4{color:#fff;font-size:13px;margin-bottom:8px;font-weight:600}
.footer-col a{display:block;font-size:12px;color:#64748b;margin-bottom:5px}
.footer-col a:hover{color:#fff}
.footer-bottom{text-align:center;padding-top:16px;margin-top:16px;border-top:1px solid #1e293b;font-size:11px}
.footer-bottom a{color:#64748b}

/* ===== Entry Cards (首页功能入口) ===== */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0}
.entry-card{display:block;border-radius:var(--r);padding:20px;text-align:center;font-weight:600;font-size:14px;transition:all .2s;color:#fff}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h)}
.entry-card .icon{font-size:24px;margin-bottom:4px}
.entry-card.tip{background:var(--c-warn)}
.entry-card.vip{background:var(--c-accent)}
.entry-card.share{background:var(--c-success)}

/* ===== VIP / Reward / Share page local styles ===== */
/* (these pages have inline styles, keep compatible) */

/* ===== Responsive ===== */
@media(max-width:960px){
  .layout{grid-template-columns:1fr}
  .sidebar{position:static;display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
}
@media(max-width:640px){
  .nav-links{display:none}
  .hero{padding:24px 18px}
  .hero h1{font-size:20px}
  .hero-stats{gap:16px}
  .hero-stat .num{font-size:18px}
  .article-grid{grid-template-columns:1fr}
  .article-head h1{font-size:20px}
  .article-body{padding:18px}
  .article-body h2{font-size:17px}
  .sidebar{grid-template-columns:1fr}
  .affiliate-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:1fr}
  .reward-actions{flex-direction:column}
  .reward-actions a{width:100%;justify-content:center}
}