/* ============ 基础与变量 ============ */
/* Remix Icon 字体已在 remixicon.css 中定义 */

:root{
  --bg:#ffffff;
  --bg-2:#f8f9fa;
  --bg-3:#f0f2f5;
  --card:#ffffff;
  --border:#e1e4e8;
  --text:#1f2328;
  --text-dim:#59636e;
  --text-mute:#8b949e;
  --accent:#0066ff;
  --accent-2:#00d4ff;
  --danger:#cf222e;
  --warn:#bf8700;
  --success:#1a7f37;
  --radius:8px;
  --shadow:0 1px 3px rgba(0,0,0,.08), 0 8px 24px rgba(0,0,0,.06);
  --container:1280px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--text);font-family:-apple-system,'Segoe UI','PingFang SC','Microsoft YaHei',Helvetica,Arial,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}
img{max-width:100%;display:block}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}

/* ============ 顶部条 ============ */
.topbar{background:linear-gradient(90deg,#0066ff,#00d4ff);color:#fff;font-size:13px}
.topbar-inner{display:flex;justify-content:flex-start;align-items:center;padding:10px 20px;gap:16px;text-align:left}
.topbar a{color:#fff;font-weight:600;text-decoration:underline}

/* ============ 导航 ============ */
.navbar{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);box-shadow:0 1px 2px rgba(0,0,0,.04)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.logo{display:flex;align-items:center;gap:10px}
.logo-img{height:40px;width:auto;display:block}
.logo-icon{font-size:28px;color:var(--accent)}
.logo-icon .ri-shield-check-fill{font-size:32px}
.logo-text strong{display:block;font-size:16px;color:var(--text);letter-spacing:.3px}
.logo-text small{color:var(--text-mute);font-size:11px;letter-spacing:1.5px;text-transform:uppercase}
.nav-links{display:flex;gap:28px}
.nav-links a{font-size:14.5px;color:var(--text-dim);font-weight:500;position:relative;padding:6px 0;transition:all .2s}
.nav-links a:hover,.nav-links a.active{color:var(--accent)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent);border-radius:2px}
.nav-actions{display:flex;gap:10px;align-items:center}
.btn-auth{padding:6px 16px;border-radius:999px;font-size:13px;font-weight:600;transition:all .2s;text-decoration:none;background:#fff;color:var(--text);border:1px solid #ccc;display:inline-flex;align-items:center;gap:6px}
.btn-auth:hover{border-color:var(--accent);color:var(--accent);box-shadow:0 2px 8px rgba(0,0,0,.1)}
.menu-toggle{background:var(--bg-2);border:1px solid var(--border);color:var(--text-dim);width:40px;height:40px;border-radius:var(--radius);cursor:pointer;font-size:18px;transition:all .2s;display:none;align-items:center;justify-content:center}
.menu-toggle i{font-size:20px}
.menu-toggle:hover{border-color:var(--accent);color:var(--accent);background:#fff}
.search-bar{display:none;background:#fff;border-top:1px solid var(--border)}
.search-bar.open{display:block}
.search-bar input{width:100%;background:transparent;border:none;color:var(--text);padding:14px 0;font-size:15px;outline:none}
.search-bar input::placeholder{color:var(--text-mute)}

/* ============ 搜索区域 ============ */
.search-section{padding:60px 0;background:linear-gradient(180deg,#0a1628 0%,#1a2a4a 30%,#2a3a6a 60%,#3a4a8a 100%);position:relative;overflow:hidden;min-height:180px}
.search-section .container{position:relative;z-index:2}
.light-effect-horizontal{position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent 0%,rgba(255,255,200,.1) 20%,rgba(255,255,150,.2) 50%,rgba(255,255,200,.1) 80%,transparent 100%);pointer-events:none;z-index:1;animation:lightSweep 5s ease-in-out infinite}
@keyframes lightSweep{0%{left:-100%}100%{left:100%}}
.search-section::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:repeating-linear-gradient(180deg,transparent 0px,transparent 2px,rgba(0,255,136,.15) 2px,rgba(0,255,136,.15) 4px);pointer-events:none;z-index:1;animation:scanline 2s linear infinite}
@keyframes scanline{0%{transform:translateY(0)}100%{transform:translateY(4px)}}
.search-section::after{content:'';position:absolute;top:-100px;left:50%;transform:translateX(-50%);width:600px;height:400px;background:radial-gradient(ellipse at center,rgba(255,255,200,.4) 0%,rgba(255,255,150,.2) 20%,rgba(200,230,255,.1) 40%,transparent 70%);pointer-events:none;z-index:1;animation:lightFlicker 4s ease-in-out infinite}
@keyframes lightFlicker{0%,100%{opacity:.8}50%{opacity:1}}
@keyframes pulse{0%,100%{transform:scale(1);opacity:.5}50%{transform:scale(1.1);opacity:.8}}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(-30px,-30px)}}
.search-box{max-width:800px;margin:0 auto;display:flex;align-items:center;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border:2px solid rgba(255,255,255,.3);border-radius:var(--radius);padding:6px;transition:all .3s;box-shadow:0 4px 16px rgba(0,0,0,.1);position:relative;z-index:3}
.search-box:focus-within{border-color:rgba(255,255,255,.6);box-shadow:0 4px 16px rgba(0,0,0,.15)}
.search-category{border:none;outline:none;background:transparent;padding:10px 16px;font-size:14px;font-weight:600;color:var(--text);cursor:pointer;min-width:120px}
.search-category option{padding:10px;font-weight:normal}
.search-divider{width:1px;height:24px;background:var(--border);margin:0 8px}
.search-box i{font-size:20px;color:var(--text-mute);margin:0 12px}
.search-box input{flex:1;border:none;outline:none;font-size:15px;color:#1a1a2e;background:transparent}
.search-box input::placeholder{color:#666}
.search-btn-modern{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;border:none;padding:12px 28px;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 4px 12px rgba(102,126,234,.3)}
.search-btn-modern:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(102,126,234,.4)}

/* ============ 主视觉 ============ */
.hero{position:relative;padding:80px 0 60px;overflow:hidden;background:linear-gradient(135deg,#f0f7ff 0%,#e6f2ff 100%)}
.hero-bg{position:absolute;inset:0;background:
  radial-gradient(800px 400px at 80% 20%,rgba(0,102,255,.08),transparent 60%),
  radial-gradient(600px 400px at 10% 80%,rgba(0,212,255,.06),transparent 60%);
  z-index:0}
.hero-inner{position:relative;display:grid;grid-template-columns:1.2fr 1fr;gap:50px;align-items:center;z-index:1}
.tag{display:inline-block;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.5px}
.tag-breaking{background:rgba(207,34,46,.1);color:var(--danger);border:1px solid rgba(207,34,46,.2)}
.tag-new{background:rgba(0,102,255,.1);color:var(--accent);border:1px solid rgba(0,102,255,.2)}
.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.2;margin:18px 0 18px;font-weight:800;color:var(--text);letter-spacing:-.5px}
.hero-content>p{color:var(--text-dim);font-size:17px;max-width:560px;margin-bottom:28px;line-height:1.7}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.btn{display:inline-block;padding:12px 24px;border-radius:var(--radius);font-weight:600;font-size:14.5px;cursor:pointer;border:1px solid transparent;transition:all .2s}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 2px 8px rgba(0,102,255,.2)}
.btn-primary:hover{background:#0052cc;color:#fff;box-shadow:0 4px 12px rgba(0,102,255,.3);transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);box-shadow:var(--shadow)}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;margin-bottom:24px}
.hero-stats div strong{display:block;font-size:26px;color:var(--accent);font-weight:700}
.hero-stats div span{color:var(--text-mute);font-size:13px}

/* Hero Card (右侧) */
.hero-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}

/* 终端卡片 */
.terminal{background:#1e293b;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;font-family:'Courier New',Consolas,monospace}
.terminal-head{display:flex;align-items:center;gap:6px;padding:12px 16px;background:#0f172a;border-bottom:1px solid #334155}
.dot{width:12px;height:12px;border-radius:50%;display:inline-block}
.dot.red{background:#ff5f56}.dot.yellow{background:#ffbd2e}.dot.green{background:#27c93f}
.terminal-title{margin-left:10px;color:#94a3b8;font-size:12px}
.terminal-body{padding:20px;font-size:13.5px;color:#00ff41;min-height:220px;line-height:1.8;white-space:pre-wrap}

/* ============ 分类 ============ */
.categories{padding:50px 0;background:var(--bg-2)}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:all .25s;text-align:left;cursor:pointer}
.cat-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--shadow)}
.cat-icon{font-size:32px;display:block;margin-bottom:12px;color:var(--accent)}
.cat-icon .ri-bug-fill,
.cat-icon .ri-alarm-warning-fill,
.cat-icon .ri-virus-fill,
.cat-icon .ri-lock-shield-fill,
.cat-icon .ri-shield-check-fill{font-size:36px}
.cat-card h3{font-size:17px;color:var(--text);margin-bottom:8px;font-weight:700}
.cat-card p{color:var(--text-dim);font-size:14px;line-height:1.6}

/* ============ 通用段落 ============ */
.section{padding:60px 0}
.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}
.section-head h2{font-size:28px;font-weight:700;color:var(--text)}
.more{color:var(--accent);font-size:14px;font-weight:600}
.more:hover{text-decoration:underline}

/* ============ 精选网格 ============ */
.featured-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feat-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .25s;display:flex;flex-direction:column;cursor:pointer}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--accent)}
.feat-img{aspect-ratio:16/9;background:linear-gradient(135deg,#4facfe 0%,#00f2fe 100%);position:relative;display:flex;align-items:center;justify-content:center}
.feat-img i{font-size:64px;color:rgba(255,255,255,.7)}
.feat-body{padding:24px;flex:1;display:flex;flex-direction:column}
.feat-meta{display:flex;gap:10px;align-items:center;margin-bottom:12px;font-size:13px;color:var(--text-mute)}
.feat-card h3{font-size:16px;color:var(--text);margin-bottom:10px;line-height:1.4;font-weight:700}
.feat-card p{color:var(--text-dim);font-size:13px;margin-bottom:14px;flex:1;line-height:1.6}
.feat-card .read-more{color:var(--accent);font-weight:600;font-size:14px}

/* ============ 文章列表 ============ */
.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.art-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .25s;display:flex;flex-direction:column;cursor:pointer}
.art-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--accent)}
.art-thumb{aspect-ratio:16/5;background:linear-gradient(135deg,#a8edea 0%,#fed6e3 100%);display:flex;align-items:center;justify-content:center}
.art-thumb i{font-size:52px;color:rgba(0,0,0,.25)}
.art-body{padding:20px;flex:1;display:flex;flex-direction:column}
.art-body .cat{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.5px;text-transform:uppercase;margin-bottom:10px}
.art-body h3{font-size:17px;color:var(--text);margin-bottom:10px;line-height:1.5;font-weight:700}
.art-body p{color:var(--text-dim);font-size:14px;margin-bottom:16px;flex:1;line-height:1.6}
.art-meta{display:flex;justify-content:space-between;font-size:12.5px;color:var(--text-mute)}

/* 现代化指标栏 */
.vuln-badges-row{
  display: flex;
  gap: 8px;
  margin-bottom: 0;
  flex-wrap: wrap;
}

.badge{
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.25s;
}

.badge i{
  font-size: 14px;
}

/* CVSS 评分徽章 */
.badge-cvss{
  background: #f0f0f0;
  color: #666;
}

.badge-cvss.critical{
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

.badge-cvss.high{
  background: linear-gradient(135deg, #fd7e14 0%, #e06a0b 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(253, 126, 20, 0.3);
}

.badge-cvss.medium{
  background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
  color: #212529;
  box-shadow: 0 2px 8px rgba(255, 193, 7, 0.3);
}

.badge-cvss.low{
  background: linear-gradient(135deg, #28a745 0%, #20913c 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
}

/* 威胁等级徽章 */
.badge-threat{
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

/* 日期徽章 */
.badge-date{
  background: #f8f9fa;
  color: #495057;
  border: 1px solid #dee2e6;
}

/* 补丁状态徽章 */
.patch-badge{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  margin-top: 8px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.25s;
  background: #f8f9fa;
  border: 1px solid #dee2e6;
  color: #495057;
}

.patch-text {
  font-size: 12px;
  color: #6c757d;
  font-weight: 500;
}

.patch-badge i{
  font-size: 14px;
}

.patch-badge:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* 补丁可用 - 绿色 */
.patch-badge.available {
  background: linear-gradient(135deg, #28a745 0%, #20913c 100%);
  border-color: #28a745;
  color: #fff;
  box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
}

.patch-badge.available .patch-text {
  color: rgba(255,255,255,0.9);
}

/* 无补丁 - 红色 */
.patch-badge.none {
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
  border-color: #dc3545;
  color: #fff;
  box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

.patch-badge.none .patch-text {
  color: rgba(255,255,255,0.9);
}


/* ============ 漏洞列表（专业风格） ============ */
.vuln-list{display:flex;flex-direction:column;gap:16px}
.vuln-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;transition:all .25s;cursor:pointer;border-left:4px solid var(--border)}
.vuln-item:hover{border-left-color:var(--accent);box-shadow:0 4px 12px rgba(0,0,0,.08);transform:translateX(4px)}
.vuln-item.critical{border-left-color:#dc3545}
.vuln-item.high{border-left-color:#fd7e14}
.vuln-item.medium{border-left-color:#ffc107}
.vuln-item.low{border-left-color:#28a745}
.vuln-header{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.vuln-cve{font-family:'Courier New',monospace;font-size:14px;font-weight:700;color:var(--accent);background:rgba(0,102,255,.08);padding:4px 10px;border-radius:4px}
.vuln-title{font-size:16px;font-weight:700;color:var(--text);flex:1}
.vuln-badges{display:flex;gap:8px;flex-wrap:wrap}
.vuln-badge{font-size:11px;font-weight:600;padding:3px 8px;border-radius:4px;letter-spacing:.3px}
.vuln-badge.cvss{background:#dc3545;color:#fff}
.vuln-badge.cvss-high{background:#fd7e14;color:#fff}
.vuln-badge.cvss-medium{background:#ffc107;color:#000}
.vuln-badge.cvss-low{background:#28a745;color:#fff}
.vuln-badge.threat{background:rgba(220,53,69,.1);color:#dc3545;border:1px solid rgba(220,53,69,.2)}
.vuln-badge.type{background:rgba(0,102,255,.08);color:var(--accent);border:1px solid rgba(0,102,255,.15)}
.vuln-badge.status{background:rgba(40,167,69,.1);color:#28a745;border:1px solid rgba(40,167,69,.2)}
.vuln-desc{font-size:14px;color:var(--text-dim);line-height:1.6;margin-bottom:12px}
.vuln-meta{display:flex;gap:20px;font-size:12.5px;color:var(--text-mute);flex-wrap:wrap}
.vuln-meta span{display:flex;align-items:center;gap:5px}
.vuln-meta i{font-size:14px}

/* ============ 文章详情页 ============ */
.article-page{padding:50px 0 80px}
.article-wrap{max-width:820px;margin:0 auto}
.article-wrap .back{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: 999px;
  text-decoration: none;
  transition: all 0.25s;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.article-wrap .back:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.article-wrap .back i {
  font-size: 16px;
}
.article-header{margin-bottom:30px}
.article-header .cat{color:var(--accent);font-size:13px;font-weight:700;letter-spacing:1px;text-transform:uppercase;margin-bottom:14px;display:block}
.article-header h1{font-size:clamp(28px,4vw,40px);color:var(--text);line-height:1.3;margin-bottom:16px;font-weight:800}
.article-meta{display:flex;gap:20px;color:var(--text-mute);font-size:14px;flex-wrap:wrap}
.article-cover{
  aspect-ratio: 16/3.2; /* 高度减小60%，从16/8变为16/3.2 */
  border-radius: var(--radius);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
}

/* 背景动画效果 - 浮动光斑 */
.article-cover::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: float-glow 8s ease-in-out infinite;
}

/* 第二个光斑 - 反向运动 */
.article-cover::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -30%;
  width: 150%;
  height: 150%;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 60%);
  animation: float-glow-reverse 10s ease-in-out infinite;
}

@keyframes float-glow {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(30px, -20px) rotate(180deg); }
}

@keyframes float-glow-reverse {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-25px, 15px) rotate(-180deg); }
}

/* 图标样式增强 */
.article-cover i {
  font-size: 60px;
  color: rgba(255,255,255,0.9);
  text-shadow: 0 0 30px rgba(255,255,255,0.5), 0 0 60px rgba(255,255,255,0.3);
  z-index: 1;
  animation: pulse-icon 3s ease-in-out infinite;
}

@keyframes pulse-icon {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.1); opacity: 1; }
}
.article-content{font-size:16.5px;line-height:1.9;color:var(--text)}
.article-content h2{color:var(--text);margin:36px 0 16px;font-size:24px;font-weight:700}
.article-content h3{color:var(--text);margin:28px 0 12px;font-size:19px;font-weight:700}
.article-content p{margin-bottom:16px}
.article-content ul,.article-content ol{margin:0 0 16px 22px}
.article-content li{margin-bottom:8px}
.article-content code{background:var(--bg-3);padding:2px 7px;border-radius:4px;font-size:.9em;color:var(--accent);font-family:'Courier New',monospace}
.article-content pre{background:var(--bg-3);border:1px solid var(--border);padding:18px;border-radius:var(--radius);overflow-x:auto;margin-bottom:20px}
.article-content pre code{background:transparent;color:var(--text);padding:0}
.article-content blockquote{border-left:4px solid var(--accent);padding:12px 20px;margin:24px 0;color:var(--text-dim);background:var(--bg-2);border-radius:0 var(--radius) var(--radius) 0}
.compliance-box{background:rgba(26,127,55,.06);border:1px solid rgba(26,127,55,.2);border-radius:var(--radius);padding:20px 24px;margin:30px 0;font-size:14.5px;color:#1a5d29}
.compliance-box strong{color:var(--success)}

/* ============ 关于页 ============ */
.about-hero{padding:80px 0 50px;text-align:center;background:linear-gradient(135deg,#f0f7ff 0%,#e6f2ff 100%)}
.about-hero h1{font-size:clamp(32px,5vw,48px);color:var(--text);margin-bottom:16px;font-weight:800}
.about-hero p{color:var(--text-dim);max-width:640px;margin:0 auto;font-size:17px;line-height:1.7}
.about-section{padding:40px 0;max-width:860px;margin:0 auto}
.about-section h2{color:var(--text);font-size:24px;margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid var(--accent);font-weight:700}
.about-section p,.about-section li{color:var(--text-dim);font-size:15.5px;line-height:1.8;margin-bottom:14px}
.about-section ul{padding-left:22px}

/* ============ 订阅 ============ */
.subscribe{padding:80px 0;background:linear-gradient(135deg,#0066ff 0%,#00d4ff 100%);text-align:center;color:#fff}
.sub-inner h2{color:#fff;font-size:32px;margin-bottom:14px;font-weight:800}
.sub-inner>p{color:rgba(255,255,255,.9);margin-bottom:28px;font-size:16px}
.sub-form{display:flex;gap:12px;max-width:480px;margin:0 auto 16px;flex-wrap:wrap}
.sub-form input{flex:1;min-width:200px;padding:13px 18px;border-radius:var(--radius);border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.15);color:#fff;font-size:15px;outline:none;transition:all .2s}
.sub-form input::placeholder{color:rgba(255,255,255,.7)}
.sub-form input:focus{background:rgba(255,255,255,.25);border-color:#fff}
.sub-form .btn-primary{background:#fff;color:var(--accent);border-color:#fff}
.sub-form .btn-primary:hover{background:var(--bg-2)}
.sub-note{color:rgba(255,255,255,.8);font-size:13px}

/* ============ 页脚 ============ */
.footer{background:#1e293b;color:#cbd5e1;padding:60px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700}
.footer-col p{color:#94a3b8;font-size:14px;line-height:1.7;max-width:320px}
.footer-col a{display:block;color:#94a3b8;font-size:14px;margin-bottom:10px;transition:color .2s}
.footer-col a:hover{color:var(--accent-2)}
.footer-bottom{border-top:1px solid #334155;padding-top:20px;text-align:center;color:#64748b;font-size:13px}
.footer-bottom a{color:var(--accent-2)}

/* ============ 筛选栏 ============ */
.filter-bar{padding:30px 0 10px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.filter-bar .chip{padding:8px 16px;border-radius:999px;background:#fff;border:1px solid var(--border);color:var(--text-dim);font-size:13.5px;cursor:pointer;transition:all .2s;font-weight:500;display:inline-flex;align-items:center;gap:6px}
.filter-bar .chip i{font-size:15px}
.filter-bar .chip:hover{border-color:var(--accent);color:var(--accent)}
.filter-bar .chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.page-title{padding:60px 0 20px;text-align:center;background:var(--bg-2)}
.page-title h1{font-size:clamp(30px,4vw,42px);color:var(--text);margin-bottom:12px;font-weight:800}
.page-title p{color:var(--text-dim);font-size:16px}

/* ============ 响应式 ============ */
@media (max-width: 960px){
  .hero-inner{grid-template-columns:1fr;gap:30px}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .featured-grid{grid-template-columns:repeat(2,1fr)}
  .article-list{grid-template-columns:repeat(2,1fr)}
  .vuln-header{flex-direction:column;align-items:flex-start}
  .vuln-badges{margin-top:8px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 20px;gap:14px;border-bottom:1px solid var(--border);box-shadow:var(--shadow);z-index:99}
  .nav-links.open{display:flex}
  .menu-toggle{display:flex}
  .btn-auth{padding:5px 12px;font-size:12px}
  .search-box{flex-wrap:nowrap}
  .search-category{min-width:80px;font-size:13px;padding:8px 10px}
  .logo-img{height:32px}
}
@media (max-width: 640px){
  .menu-toggle{display:flex}
  .hero{padding:50px 0 30px}
  .hero-stats{gap:20px}
  .hero-stats div strong{font-size:22px}
  .cat-grid{grid-template-columns:1fr 1fr;gap:14px}
  .cat-card{padding:18px}
  .article-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(3,1fr);gap:24px}
  .footer-col:first-child{grid-column:1/-1}
  .footer-col h4{font-size:13px;margin-bottom:12px}
  .footer-col a{font-size:12px;margin-bottom:8px}
  .section{padding:40px 0}
  .topbar-inner{font-size:12px}
  .topbar a{display:none}
  .search-box{padding:4px;gap:4px}
  .search-category{min-width:60px;font-size:12px;padding:6px 8px}
  .search-box input{font-size:13px;padding:8px 6px}
  .search-btn-modern{padding:8px 14px;font-size:12px}
  .search-divider{margin:0 4px}
  .search-box i{font-size:16px;margin:0 6px}
  .logo-img{height:28px}
}