:root {
    --bg-dark: #07090E;
    --bg-card: rgba(18, 22, 33, 0.7);
    --neon-cyan: #00E5FF;
    --neon-purple: #B400FF;
    --text-main: #E2E8F0;
    --text-muted: #94A3B8;
    --border-glass: rgba(255, 255, 255, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', system-ui, -apple-system, sans-serif; }
body { background-color: var(--bg-dark); color: var(--text-main); line-height: 1.6; font-size: 16px; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: 0.3s; }

/* 背景光效 */
.ambient-light { position: fixed; top: -20vh; left: -10vw; width: 50vw; height: 50vw; background: radial-gradient(circle, rgba(0, 229, 255, 0.15) 0%, rgba(0,0,0,0) 70%); z-index: -1; }
.ambient-light-2 { position: fixed; bottom: -20vh; right: -10vw; width: 60vw; height: 60vw; background: radial-gradient(circle, rgba(180, 0, 255, 0.12) 0%, rgba(0,0,0,0) 70%); z-index: -1; }

.container { width: 100%; padding: 0 20px; margin: 0 auto; max-width: 1400px; }

/* 头部导航 */
header { padding: 20px 0; border-bottom: 1px solid var(--border-glass); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; }
.nav-flex { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 800; color: #fff; text-transform: uppercase; letter-spacing: 2px; }
.logo span { color: var(--neon-cyan); }
.nav-links { display: none; gap: 30px; }

/* 核心工具区 */
.hero-section { padding: 60px 0; text-align: center; }
.hero-title { font-size: clamp(2rem, 5vw, 4rem); font-weight: 900; background: linear-gradient(90deg, #fff, var(--neon-cyan)); -webkit-background-clip: text; color: transparent; margin-bottom: 15px; }
.hero-desc { color: var(--text-muted); max-width: 600px; margin: 0 auto 40px; font-size: 1.1rem; }

.tool-glass-cabin { background: var(--bg-card); border: 1px solid var(--border-glass); border-radius: 24px; padding: 30px; backdrop-filter: blur(20px); box-shadow: 0 20px 40px rgba(0,0,0,0.4); text-align: left; }
.tool-controls { display: grid; grid-template-columns: 1fr; gap: 20px; margin-bottom: 30px; }
.input-group label { display: block; font-size: 0.85rem; color: var(--neon-cyan); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 1px;}
.input-group select, .input-group input { width: 100%; padding: 15px; background: rgba(0,0,0,0.3); border: 1px solid var(--border-glass); border-radius: 12px; color: #fff; font-size: 1rem; outline: none; transition: 0.3s; }
.input-group select:focus, .input-group input:focus { border-color: var(--neon-cyan); box-shadow: 0 0 15px rgba(0, 229, 255, 0.2); }

.tool-results { display: grid; grid-template-columns: 1fr; gap: 20px; }
.tz-card { background: rgba(255,255,255,0.03); border: 1px solid var(--border-glass); padding: 20px; border-radius: 16px; position: relative; overflow: hidden; }
.tz-card::before { content: ''; position: absolute; left: 0; top: 0; width: 4px; height: 100%; background: var(--neon-cyan); }
.tz-name { font-size: 1.2rem; font-weight: 600; margin-bottom: 5px; }
.tz-time { font-size: 2.5rem; font-weight: 800; font-family: monospace; }
.tz-status { display: inline-block; padding: 4px 10px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; margin-top: 10px; }
.status-work { background: rgba(0, 229, 255, 0.1); color: var(--neon-cyan); }
.status-sleep { background: rgba(180, 0, 255, 0.1); color: var(--neon-purple); }

/* 模块标题 */
.section-title { font-size: 2rem; border-left: 5px solid var(--neon-cyan); padding-left: 15px; margin: 60px 0 30px; font-weight: 800; }

/* 列表网格 (强制图文结构) */
.article-grid { display: grid; grid-template-columns: 1fr; gap: 25px; }
.article-card { background: var(--bg-card); border: 1px solid var(--border-glass); border-radius: 16px; overflow: hidden; transition: transform 0.3s, box-shadow 0.3s; display: flex; flex-direction: column; }
.article-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0, 229, 255, 0.15); border-color: rgba(0, 229, 255, 0.3); }
.article-img { width: 100%; height: 200px; object-fit: cover; border-bottom: 1px solid var(--border-glass); }
.article-content { padding: 20px; }
.article-tag { font-size: 0.75rem; color: var(--neon-cyan); border: 1px solid var(--neon-cyan); padding: 3px 8px; border-radius: 12px; margin-bottom: 10px; display: inline-block; }
.article-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.article-desc { font-size: 0.9rem; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* 内容详情页 */
.article-detail { max-width: 800px; margin: 60px auto; background: var(--bg-card); padding: 40px; border-radius: 24px; border: 1px solid var(--border-glass); }
.detail-title { font-size: 2.2rem; margin-bottom: 20px; line-height: 1.3; }
.detail-meta { color: var(--text-muted); margin-bottom: 40px; font-size: 0.9rem; display: flex; gap: 20px; }
.detail-body h2 { color: var(--neon-cyan); margin: 40px 0 20px; font-size: 1.5rem; }
.detail-body h3 { color: #fff; margin: 30px 0 15px; font-size: 1.2rem; }
.detail-body p { margin-bottom: 20px; color: #cbd5e1; }
.detail-body blockquote { border-left: 4px solid var(--neon-purple); background: rgba(180, 0, 255, 0.05); padding: 20px; margin: 30px 0; border-radius: 0 12px 12px 0; color: #fff; font-style: italic; }

footer { text-align: center; padding: 40px 0; border-top: 1px solid var(--border-glass); margin-top: 80px; color: var(--text-muted); }

/* 媒体查询 / 顶级响应式 */
@media (min-width: 640px) {
    .tool-controls { grid-template-columns: repeat(2, 1fr); }
    .article-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
    .nav-links { display: flex; }
    .tool-controls { grid-template-columns: repeat(4, 1fr); }
    .tool-results { grid-template-columns: repeat(3, 1fr); }
    .article-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1280px) {
    .article-grid { grid-template-columns: repeat(4, 1fr); }
}