/* ===========================================
   猫盾3.0 - 赛博科技风格 v2.0
   =========================================== */
:root {
    --neon-cyan: #00f0ff;
    --neon-blue: #4d6bff;
    --neon-purple: #8b5cf6;
    --neon-green: #00ff88;
    --neon-pink: #ff2d7b;
    --bg-deep: #070b1a;
    --bg-card: rgba(13, 18, 40, 0.7);
    --border-glow: rgba(0, 240, 255, 0.15);
}

* { margin:0; padding:0; box-sizing:border-box; }
body {
    font-family: 'Courier New', 'JetBrains Mono', 'Fira Code', monospace;
    background: var(--bg-deep);
    color: #c8d6e5;
    line-height: 1.6;
    overflow-x: hidden;
}
::selection { background: var(--neon-cyan); color: #000; }

/* ── 动态粒子背景 ── */
#particle-canvas {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 0; pointer-events: none;
}

/* ── 扫描线效果 ── */
body::after {
    content: ''; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px,
        rgba(0,240,255,0.015) 2px, rgba(0,240,255,0.015) 4px);
    pointer-events: none; z-index: 9999;
}

.container { max-width: 1200px; margin:0 auto; padding:0 24px; position:relative; z-index:1; }

/* ── 导航栏 ── */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(7,11,26,0.85); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glow); padding: 12px 0;
}
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-img {
    height: 42px; width: auto; border-radius: 8px;
    padding: 3px 6px;
    background: linear-gradient(135deg, rgba(0,240,255,0.12), rgba(77,107,255,0.08));
    box-shadow: 0 0 25px rgba(0,240,255,0.2), 0 0 80px rgba(0,240,255,0.06);
    border: 1px solid rgba(0,240,255,0.3);
    transition: all .3s;
}
.logo-img:hover {
    box-shadow: 0 0 40px rgba(0,240,255,0.4);
    border-color: rgba(0,240,255,0.6);
}
.logo-icon { font-size: 28px; animation: pulse-glow 2s ease-in-out infinite; }
@keyframes pulse-glow {
    0%,100% { filter: drop-shadow(0 0 8px rgba(0,240,255,0.3)); }
    50% { filter: drop-shadow(0 0 20px rgba(0,240,255,0.8)); }
}
.logo-text {
    font-size: 22px; font-weight: 700;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue), var(--neon-purple));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.logo-text small { font-size: 12px; -webkit-text-fill-color: var(--neon-cyan); opacity:0.7; }
.nav-links { display: flex; gap: 32px; }
.nav-links a {
    color: #64748b; text-decoration: none; font-size: 13px; text-transform: uppercase;
    letter-spacing: 2px; transition: all .3s; position: relative;
}
.nav-links a::after {
    content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1px;
    background: var(--neon-cyan); transition: width .3s; box-shadow: 0 0 8px var(--neon-cyan);
}
.nav-links a:hover { color: var(--neon-cyan); }
.nav-links a:hover::after { width: 100%; }
.dl-badge {
    background: var(--neon-cyan); color: #000; border-radius: 8px;
    padding: 1px 7px; font-size: 10px; font-weight: 700; margin-left: 2px;
}

/* ── Hero ── */
.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    position: relative; padding: 120px 0 80px;
}
.hero::before {
    content: ''; position: absolute; top: 0; left: 50%; width: 600px; height: 600px;
    transform: translate(-50%, -30%); background: radial-gradient(circle, rgba(0,240,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}
.hero-content { text-align: center; max-width: 800px; }
.hero-badge {
    display: inline-block; padding: 6px 16px; border: 1px solid var(--neon-cyan);
    border-radius: 20px; font-size: 11px; color: var(--neon-cyan); letter-spacing: 3px;
    text-transform: uppercase; margin-bottom: 24px; background: rgba(0,240,255,0.05);
}
.hero h1 {
    font-size: 64px; font-weight: 800; line-height: 1.1; margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 0%, var(--neon-cyan) 40%, var(--neon-blue) 70%, var(--neon-purple) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    animation: gradient-shift 8s ease infinite;
    background-size: 200% 200%;
}
@keyframes gradient-shift {
    0%,100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}
.hero-subtitle { font-size: 18px; color: var(--neon-cyan); margin-bottom: 12px; letter-spacing: 4px; }
.hero-desc { font-size: 15px; color: #475569; margin-bottom: 40px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
    padding: 16px 40px; border: none; border-radius: 8px;
    font-family: inherit; font-size: 15px; font-weight: 600; cursor: pointer;
    text-decoration: none; text-transform: uppercase; letter-spacing: 2px;
    position: relative; overflow: hidden; transition: all .3s;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
    color: #000; box-shadow: 0 0 30px rgba(0,240,255,0.3);
}
.btn-primary:hover {
    transform: translateY(-2px); box-shadow: 0 0 50px rgba(0,240,255,0.5);
}
.btn-secondary {
    padding: 16px 40px; border: 1px solid var(--border-glow); border-radius: 8px;
    font-family: inherit; font-size: 15px; font-weight: 600; cursor: pointer;
    text-decoration: none; text-transform: uppercase; letter-spacing: 2px;
    background: transparent; color: var(--neon-cyan); transition: all .3s;
}
.btn-secondary:hover { background: rgba(0,240,255,0.05); box-shadow: inset 0 0 30px rgba(0,240,255,0.1); }
.version-badge {
    display: block; margin-top: 20px; font-size: 12px; color: #334155;
    letter-spacing: 1px;
}
.version-badge strong { color: var(--neon-cyan); }

/* ── 滚动提示 ── */
.scroll-hint {
    position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    color: #334155; font-size: 10px; letter-spacing: 3px; text-transform: uppercase;
}
.scroll-hint span { animation: scroll-pulse 2s ease-in-out infinite; }
@keyframes scroll-pulse { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }

/* ── 区块通用 ── */
.section { padding: 100px 0; position: relative; }
.section-tag {
    display: inline-block; padding: 4px 12px; border: 1px solid rgba(0,240,255,0.2);
    border-radius: 4px; font-size: 10px; color: var(--neon-cyan); letter-spacing: 3px;
    background: rgba(0,240,255,0.03); margin-bottom: 16px;
}
.section h2 {
    font-size: 36px; font-weight: 700; margin-bottom: 48px;
    background: linear-gradient(135deg, #fff, var(--neon-cyan));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.section h2 .highlight { color: var(--neon-cyan); }

/* ── 功能特性 ── */
.features-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.feature-card {
    background: var(--bg-card); border: 1px solid var(--border-glow);
    border-radius: 12px; padding: 32px 24px; position: relative; overflow: hidden;
    backdrop-filter: blur(10px); transition: all .3s;
}
.feature-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
    opacity: 0; transition: opacity .3s;
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover { transform: translateY(-4px); border-color: rgba(0,240,255,0.3); box-shadow: 0 8px 40px rgba(0,0,0,.4); }
.feature-icon { font-size: 32px; margin-bottom: 16px; }
.feature-card h3 { font-size: 16px; color: #e0e0e0; margin-bottom: 12px; }
.feature-card p { font-size: 13px; color: #64748b; }

/* ── 架构图 ── */
.arch-diagram {
    background: var(--bg-card); border: 1px solid var(--border-glow);
    border-radius: 16px; padding: 48px; backdrop-filter: blur(10px);
}
.arch-flow { display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; }
.arch-node {
    background: rgba(0,240,255,0.03); border: 1px solid var(--border-glow);
    border-radius: 12px; padding: 24px 20px; text-align: center; flex: 1; min-width: 140px;
    position: relative; transition: all .3s;
}
.arch-node:hover { border-color: var(--neon-cyan); box-shadow: 0 0 30px rgba(0,240,255,0.1); }
.arch-node .num {
    width: 32px; height: 32px; border-radius: 50%;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
    color: #000; font-size: 14px; font-weight: 700; display: flex; align-items: center;
    justify-content: center; margin: 0 auto 12px;
}
.arch-node h3 { font-size: 14px; color: #e0e0e0; margin-bottom: 6px; }
.arch-node p { font-size: 11px; color: #475569; }
.arch-arrow { color: var(--neon-cyan); font-size: 20px; opacity: 0.5; flex-shrink: 0; }

/* ── 下载 ── */
.download-card {
    background: var(--bg-card); border: 1px solid var(--border-glow);
    border-radius: 16px; padding: 48px; backdrop-filter: blur(10px);
    display: flex; align-items: center; gap: 48px; max-width: 800px; margin: 0 auto;
}
.download-info { flex: 1; }
.download-info h3 { font-size: 20px; color: #e0e0e0; margin-bottom: 20px; }
.download-specs { list-style: none; }
.download-specs li {
    font-size: 13px; color: #64748b; padding: 8px 0;
    border-bottom: 1px solid rgba(0,240,255,0.05);
}
.download-specs li strong { color: var(--neon-cyan); font-weight: 400; }
.download-action { text-align: center; }
.btn-download-glow {
    display: inline-block; padding: 18px 36px; border: none; border-radius: 8px;
    font-family: inherit; font-size: 16px; font-weight: 700; cursor: pointer;
    text-decoration: none; text-transform: uppercase; letter-spacing: 2px;
    background: linear-gradient(135deg, var(--neon-green), var(--neon-cyan));
    color: #000; box-shadow: 0 0 40px rgba(0,255,136,0.3);
    transition: all .3s; white-space: nowrap;
}
.btn-download-glow:hover {
    transform: translateY(-2px); box-shadow: 0 0 60px rgba(0,255,136,0.5);
}
.download-note { margin-top: 12px; font-size: 11px; color: #334155; }

/* ── Stats ── */
.stats-row {
    display: flex; justify-content: center; gap: 24px; margin-bottom: 40px; flex-wrap: wrap;
}
.stat-box {
    background: var(--bg-card); border: 1px solid var(--border-glow);
    border-radius: 12px; padding: 24px 32px; text-align: center; min-width: 140px;
    backdrop-filter: blur(10px); position: relative; overflow: hidden;
}
.stat-box::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
}
.stat-num { display: block; font-size: 32px; font-weight: 700; color: var(--neon-cyan); font-variant-numeric: tabular-nums; }
.stat-label { font-size: 11px; color: #475569; margin-top: 6px; letter-spacing: 2px; text-transform: uppercase; }

/* ── 反馈 ── */
.feedback-form-cnt { max-width: 600px; margin: 0 auto; }
.feedback-form-cnt input, .feedback-form-cnt textarea {
    width: 100%; background: rgba(13,18,40,0.7); border: 1px solid var(--border-glow);
    border-radius: 8px; padding: 14px 18px; color: #c8d6e5; font-size: 13px;
    margin-bottom: 12px; outline: none; font-family: inherit; transition: border-color .3s;
}
.feedback-form-cnt input:focus, .feedback-form-cnt textarea:focus { border-color: var(--neon-cyan); }
.feedback-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.btn-submit {
    padding: 12px 28px; border: none; border-radius: 8px;
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    color: #fff; font-family: inherit; font-size: 13px; font-weight: 600; cursor: pointer;
    transition: all .3s; text-transform: uppercase; letter-spacing: 1px;
}
.btn-submit:hover { box-shadow: 0 0 30px rgba(77,107,255,0.4); }
.fb-item {
    background: var(--bg-card); border: 1px solid var(--border-glow);
    border-radius: 8px; padding: 16px; margin-bottom: 8px; backdrop-filter: blur(10px);
}
.fb-header { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; font-size: 12px; }
.fb-header strong { color: #e0e0e0; }
.fb-stars { color: var(--neon-cyan); }
.fb-time { color: #334155; font-size: 10px; margin-left: auto; }
.fb-item p { font-size: 13px; color: #64748b; }

/* ── 规格 ── */
.specs-table { max-width: 640px; margin: 0 auto; }
.spec-row {
    display: flex; justify-content: space-between; align-items: center;
    background: var(--bg-card); border: 1px solid var(--border-glow);
    border-radius: 8px; padding: 16px 20px; margin-bottom: 8px; backdrop-filter: blur(10px);
}
.spec-label { font-size: 13px; color: #64748b; }
.spec-value { font-size: 14px; color: var(--neon-cyan); font-weight: 600; font-variant-numeric: tabular-nums; }

/* ── 终身免费横幅 ── */
.free-banner { padding: 40px 0; }
.free-card {
    background: linear-gradient(135deg, rgba(0,255,136,0.05), rgba(0,240,255,0.05));
    border: 1px solid rgba(0,255,136,0.2); border-radius: 16px;
    padding: 32px 40px; display: flex; align-items: center; gap: 24px;
    backdrop-filter: blur(10px); position: relative; overflow: hidden;
}
.free-card::before {
    content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,255,136,0.05), transparent);
    animation: shimmer 3s ease-in-out infinite;
}
@keyframes shimmer { 0%,100% { left: -100%; } 50% { left: 100%; } }
.free-icon { font-size: 48px; flex-shrink: 0; }
.free-text { flex: 1; }
.free-text h3 { font-size: 20px; color: #00ff88; margin-bottom: 8px; }
.free-text p { font-size: 14px; color: #64748b; }
.free-badge {
    padding: 8px 20px; border: 1px solid #00ff88; border-radius: 8px;
    color: #00ff88; font-size: 12px; letter-spacing: 2px; font-weight: 600;
    white-space: nowrap; background: rgba(0,255,136,0.05);
}

/* ── Hero tags ── */
.hero-tags { display: flex; gap: 12px; justify-content: center; margin-bottom: 32px; flex-wrap: wrap; }
.hero-tag {
    padding: 6px 16px; border: 1px solid rgba(0,255,136,0.2); border-radius: 20px;
    font-size: 12px; color: #00ff88; background: rgba(0,255,136,0.03);
}

/* ── Section desc ── */
.section-desc { text-align: center; font-size: 15px; color: #475569; margin-top: -32px; margin-bottom: 48px; }

/* ── 四级处置体系 ── */
.levels-section { background: rgba(0,0,0,0.2); }
.levels-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.level-card {
    border-radius: 12px; overflow: hidden; position: relative;
    backdrop-filter: blur(10px); transition: all .3s;
}
.level-card:hover { transform: translateY(-4px); }
.level-header {
    padding: 24px 20px; text-align: center; position: relative;
}
.level-icon { font-size: 32px; margin-bottom: 8px; }
.level-num {
    font-size: 32px; font-weight: 800; line-height: 1;
    font-family: 'Courier New', monospace;
}
.level-label { font-size: 16px; font-weight: 600; margin-top: 8px; }
.level-body { padding: 16px 20px; }
.level-body p { font-size: 12px; color: #94a3b8; line-height: 1.7; }
.level-footer {
    padding: 10px 20px; font-size: 10px; letter-spacing: 2px; text-align: center;
    text-transform: uppercase;
}
/* L1 */
.l1 { border: 1px solid rgba(250,204,21,0.3); background: rgba(250,204,21,0.03); }
.l1 .level-header { background: linear-gradient(180deg, rgba(250,204,21,0.1), transparent); }
.l1 .level-num { color: #facc15; } .l1 .level-label { color: #facc15; }
.l1 .level-footer { background: rgba(250,204,21,0.05); color: #facc15; }
/* L2 */
.l2 { border: 1px solid rgba(251,146,60,0.3); background: rgba(251,146,60,0.03); }
.l2 .level-header { background: linear-gradient(180deg, rgba(251,146,60,0.1), transparent); }
.l2 .level-num { color: #fb923c; } .l2 .level-label { color: #fb923c; }
.l2 .level-footer { background: rgba(251,146,60,0.05); color: #fb923c; }
/* L3 */
.l3 { border: 1px solid rgba(239,68,68,0.3); background: rgba(239,68,68,0.03); }
.l3 .level-header { background: linear-gradient(180deg, rgba(239,68,68,0.1), transparent); }
.l3 .level-num { color: #ef4444; } .l3 .level-label { color: #ef4444; }
.l3 .level-footer { background: rgba(239,68,68,0.05); color: #ef4444; }
/* L4 */
.l4 { border: 1px solid rgba(220,38,38,0.3); background: rgba(220,38,38,0.03); }
.l4 .level-header { background: linear-gradient(180deg, rgba(220,38,38,0.1), transparent); }
.l4 .level-num { color: #dc2626; } .l4 .level-label { color: #dc2626; }
.l4 .level-footer { background: rgba(220,38,38,0.05); color: #dc2626; }
.l4:hover { box-shadow: 0 0 40px rgba(220,38,38,0.2); }

/* ── 探针原理 ── */
.probe-section { background: rgba(0,0,0,0.15); }
.probe-diagram {
    background: var(--bg-card); border: 1px solid var(--border-glow);
    border-radius: 16px; padding: 48px; backdrop-filter: blur(10px);
}
.probe-flow { display: flex; align-items: flex-start; justify-content: center; gap: 12px; flex-wrap: wrap; }
.probe-step {
    text-align: center; flex: 1; min-width: 160px; padding: 20px 16px;
    background: rgba(0,240,255,0.02); border: 1px solid var(--border-glow);
    border-radius: 12px; transition: all .3s;
}
.probe-step:hover { border-color: var(--neon-cyan); }
.probe-icon { font-size: 28px; margin-bottom: 12px; }
.probe-step h3 { font-size: 14px; color: #e0e0e0; margin-bottom: 8px; }
.probe-step p { font-size: 11px; color: #475569; line-height: 1.7; }
.probe-arrow { color: var(--neon-cyan); font-size: 24px; margin-top: 24px; opacity: 0.5; flex-shrink: 0; }

/* ── 创始人故事 ── */
.founder-section { padding: 80px 0; background: rgba(0,0,0,0.2); }
.founder-card {
    background: linear-gradient(135deg, rgba(0,240,255,0.03), rgba(77,107,255,0.03));
    border: 1px solid rgba(0,240,255,0.15); border-radius: 16px;
    padding: 48px; max-width: 700px; margin: 0 auto;
    position: relative; overflow: hidden;
}
.founder-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%;
    background: linear-gradient(180deg, var(--neon-cyan), var(--neon-blue));
}
.founder-content { padding-left: 20px; }
.founder-quote {
    font-size: 20px; color: var(--neon-cyan); font-weight: 700;
    line-height: 1.5; margin-bottom: 24px;
    font-style: italic;
}
.founder-content p { font-size: 15px; color: #94a3b8; line-height: 1.8; margin-bottom: 16px; }
.founder-content strong { color: #e0e0e0; }
.founder-motto {
    font-size: 16px !important; color: var(--neon-cyan) !important;
    border-left: 2px solid rgba(0,240,255,0.3); padding-left: 16px;
    margin-top: 24px !important;
}
.founder-tag {
    font-size: 12px; color: #475569; margin-top: 16px; letter-spacing: 1px;
}

/* ── Footer ── */
footer {
    border-top: 1px solid var(--border-glow); padding: 40px 0;
    text-align: center; color: #1e293b; font-size: 12px;
}

/* ── 响应式 ── */
@media(max-width:768px) {
    .hero h1 { font-size: 36px; }
    .features-grid { grid-template-columns: 1fr; }
    .arch-flow { flex-direction: column; }
    .arch-arrow { transform: rotate(90deg); }
    .download-card { flex-direction: column; }
    .nav-links { display: none; }
    .stats-row { gap: 12px; }
    .stat-box { min-width: 100px; padding: 16px 20px; }
    .stat-num { font-size: 24px; }
}