/* ============================================
   科猎工作室 - 全站共享样式 v1.0
   所有页面必须引入此文件
   ============================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@400;500;700&display=swap');

/* === 设计变量 === */
:root {
    /* 背景层次 */
    --lbg: #0b1120;
    --lpanel: #111827;
    --lsurf: #1e293b;
    --lelev: #334155;

    /* 文字层次 */
    --ltxt: #f1f5f9;
    --ltxt2: #cbd5e1;
    --ltxt3: #94a3b8;
    --ltxt4: #64748b;

    /* 品牌色 */
    --laccent: #6366f1;
    --lhover: #818cf8;
    --llight: #a5b4fc;

    /* 辅助色 */
    --lwarm: #f59e0b;
    --lsuccess: #22c55e;

    /* 边框 */
    --lbd: rgba(148,163,184,0.12);
    --lbds: rgba(148,163,184,0.06);
    --lglow: rgba(99,102,241,0.08);

    /* 圆角 */
    --lr6: 6px;
    --lr8: 8px;
    --lr12: 12px;
    --lr16: 16px;
}

/* === Reset === */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
    font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
    font-feature-settings: 'cv01', 'ss03';
    background: var(--lbg);
    color: var(--ltxt);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { color: var(--lhover); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--llight); }

/* === 容器 === */
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* === 导航栏 === */
.lnav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(11,17,32,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--lbds);
    padding: 0 24px;
}
.lnav-inner {
    max-width: 1120px; margin: 0 auto;
    display: flex; justify-content: space-between; align-items: center;
    height: 64px;
}
.lnav .logo {
    display: flex; align-items: center; gap: 10px;
    text-decoration: none; color: var(--ltxt);
    font-weight: 500; font-size: 1rem; letter-spacing: -0.01em;
}
.lnav .nav { display: flex; align-items: center; gap: 2px; }
.lnav .nav a {
    padding: 6px 14px; color: var(--ltxt2); text-decoration: none;
    font-size: 0.875rem; font-weight: 500; border-radius: var(--lr6);
    transition: all 0.15s; letter-spacing: -0.01em;
}
.lnav .nav a:hover { color: var(--ltxt); background: rgba(255,255,255,0.04); }
.lnav .nav a.active { color: var(--lhover); background: rgba(99,102,241,0.1); }
.lnav .nav-cta {
    background: var(--laccent); color: #fff !important;
    padding: 6px 16px !important; font-weight: 500 !important;
    border-radius: var(--lr6) !important;
}
.lnav .nav-cta:hover { background: var(--lhover) !important; }

/* === 汉堡菜单 === */
.ham {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 8px;
}
.ham span {
    display: block; width: 22px; height: 2px;
    background: var(--ltxt2); border-radius: 2px; transition: all 0.2s;
}

/* === 移动端菜单 === */
.mobile-menu {
    position: fixed; top: 0; right: -300px; width: 300px; height: 100vh;
    background: var(--lpanel); z-index: 1001;
    transition: right 0.3s ease; padding: 80px 24px 24px;
    border-left: 1px solid var(--lbd);
}
.mobile-menu.open { right: 0 !important; display: block !important; }
.mobile-menu-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.5); z-index: 1000;
    opacity: 0; transition: opacity 0.3s;
}
.mobile-menu-overlay.open { display: block !important; opacity: 1 !important; }
.mobile-menu a {
    display: block; padding: 14px 0;
    color: var(--ltxt2) !important; font-size: 1rem; font-weight: 500;
    border-bottom: 1px solid var(--lbds); text-decoration: none;
}
.mobile-menu a:hover { color: var(--ltxt) !important; }
.mobile-menu-close {
    position: absolute; top: 20px; right: 20px;
    background: none; border: none; color: var(--ltxt3);
    font-size: 1.5rem; cursor: pointer;
}

/* === 按钮 === */
.lbtn-p {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 24px; background: var(--laccent); color: #fff;
    font-size: 0.9375rem; font-weight: 500; border-radius: var(--lr6);
    transition: all 0.15s; letter-spacing: -0.01em;
    border: none; cursor: pointer;
}
.lbtn-p:hover { background: var(--lhover); color: #fff !important; }
.lbtn-g {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 24px; background: rgba(255,255,255,0.02);
    color: var(--ltxt2); font-size: 0.9375rem; font-weight: 500;
    border-radius: var(--lr6); border: 1px solid var(--lbd);
    transition: all 0.15s; letter-spacing: -0.01em;
    cursor: pointer; text-decoration: none;
}
.lbtn-g:hover { background: rgba(255,255,255,0.04); color: var(--ltxt) !important; }

/* === Section === */
.lsection { padding: 100px 0; border-top: 1px solid var(--lbds); position: relative; }
.lsection::before {
    content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 80px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--laccent), transparent);
}
.lsection-hdr { text-align: center; margin-bottom: 56px; }
.lsection-lbl {
    font-size: 0.75rem; font-weight: 510; color: var(--lhover);
    letter-spacing: 0.05em; text-transform: uppercase;
    margin-bottom: 12px; display: inline-block;
}
.lsection-title {
    font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 510;
    letter-spacing: -0.02em; color: var(--ltxt); margin-bottom: 12px;
}
.lsection-desc {
    font-size: 1rem; color: var(--ltxt3); max-width: 500px; margin: 0 auto;
}

/* === 卡片 === */
.lcard {
    background: rgba(255,255,255,0.02); border: 1px solid var(--lbd);
    border-radius: var(--lr12); padding: 28px; transition: all 0.3s ease;
}
.lcard:hover {
    background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.12);
    transform: translateY(-4px); box-shadow: 0 12px 40px rgba(99,102,241,0.08);
}
.lcard-icon { width: 40px; height: 40px; margin-bottom: 16px; color: var(--lhover); }
.lcard h3 {
    font-size: 1.125rem; font-weight: 590; color: var(--ltxt);
    letter-spacing: -0.01em; margin-bottom: 8px;
}
.lcard p { font-size: 0.875rem; color: var(--ltxt3); line-height: 1.6; margin-bottom: 16px; }
.lcard-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.lcard-tag {
    padding: 3px 10px; background: rgba(255,255,255,0.04);
    border: 1px solid var(--lbd); border-radius: 9999px;
    font-size: 0.75rem; font-weight: 500; color: var(--ltxt2);
}
.lcard-ft {
    padding-top: 16px; border-top: 1px solid var(--lbds);
    font-size: 0.8125rem; color: var(--ltxt4); line-height: 1.6;
}
.lcard-price { font-size: 0.875rem; font-weight: 590; color: var(--llight); margin-bottom: 12px; }
.lcard-steps { font-size: 0.75rem; color: var(--ltxt3); line-height: 1.6; }
.lcard-steps strong { color: var(--ltxt2); font-weight: 510; }

/* === Grid === */
.lgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }

/* === Why Us === */
.lwhy-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; max-width: 900px; margin: 0 auto; }
.lwhy {
    background: rgba(255,255,255,0.02); border: 1px solid var(--lbd);
    border-radius: var(--lr12); padding: 28px 24px; text-align: center;
    transition: all 0.3s ease;
}
.lwhy:hover {
    background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.12);
    transform: translateY(-3px);
}
.lwhy-icon { font-size: 1.75rem; margin-bottom: 12px; color: var(--lhover); }
.lwhy-icon i { font-size: 1.75rem; }
.lwhy h3 { font-size: 0.9375rem; font-weight: 590; color: var(--ltxt); margin-bottom: 8px; letter-spacing: -0.01em; }
.lwhy p { font-size: 0.8125rem; color: var(--ltxt3); line-height: 1.7; }

/* === About === */
.labout-text { color: var(--ltxt3); font-size: 0.9375rem; line-height: 1.8; margin-bottom: 32px; max-width: 700px; margin-left: auto; margin-right: auto; text-align: center; }
.labout-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 700px; margin: 0 auto 28px; }
.labout-stat { background: rgba(255,255,255,0.02); border: 1px solid var(--lbd); border-radius: var(--lr8); padding: 24px; text-align: center; }
.labout-stat-num { font-size: 1.75rem; font-weight: 590; color: var(--laccent); margin-bottom: 4px; }
.labout-stat-lbl { font-size: 0.8125rem; color: var(--ltxt4); }
.labout-cta { background: rgba(255,255,255,0.02); border: 1px solid var(--lbd); border-radius: var(--lr8); padding: 24px; text-align: center; max-width: 700px; margin: 0 auto; }
.labout-cta p { color: var(--ltxt3); font-size: 0.875rem; line-height: 1.8; margin-bottom: 16px; }
.labout-cta strong { color: var(--ltxt2); }

/* === Tech Stack === */
.ltech-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 12px; }
.ltech { background: rgba(255,255,255,0.02); border: 1px solid var(--lbd); border-radius: var(--lr8); padding: 20px 12px; text-align: center; transition: all 0.2s; }
.ltech:hover { background: rgba(255,255,255,0.04); }
.ltech-icon { font-size: 1.5rem; margin-bottom: 8px; }
.ltech-lbl { font-size: 0.8125rem; font-weight: 500; color: var(--ltxt2); }
.ltech-desc { font-size: 0.6875rem; color: var(--ltxt4); margin-top: 2px; }

/* === FAQ === */
.lfaq { max-width: 700px; margin: 0 auto; }
.lfaq-item { border-bottom: 1px solid var(--lbds); }
.lfaq-q { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 20px 0; background: none; border: none; color: var(--ltxt2); font-size: 0.9375rem; font-weight: 500; cursor: pointer; text-align: left; letter-spacing: -0.01em; }
.lfaq-q:hover { color: var(--ltxt); }
.lfaq-q svg { width: 16px; height: 16px; transition: transform 0.2s; flex-shrink: 0; }
.lfaq-q.open svg { transform: rotate(180deg); }
.lfaq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s; }
.lfaq-a-inner { padding: 0 0 20px; font-size: 0.875rem; color: var(--ltxt3); line-height: 1.7; }

/* === Contact === */
.lcontact-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; max-width: 700px; margin: 0 auto; }
.lcontact { background: rgba(255,255,255,0.02); border: 1px solid var(--lbd); border-radius: var(--lr8); padding: 24px; text-align: center; transition: all 0.2s; cursor: pointer; text-decoration: none; }
.lcontact:hover { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.12); }
.lcontact-icon { font-size: 1.5rem; margin-bottom: 8px; color: var(--lhover); }
.lcontact-lbl { font-size: 0.75rem; color: var(--ltxt4); }
.lcontact-val { font-size: 0.9375rem; font-weight: 500; color: var(--ltxt2); margin-top: 4px; }

/* === Footer === */
.lfooter { text-align: center; padding: 48px 24px; border-top: 1px solid var(--lbds); }
.lfooter-brand { font-weight: 500; color: var(--ltxt2); margin-bottom: 16px; }
.lfooter-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 16px; margin-bottom: 16px; }
.lfooter-links a { font-size: 0.8125rem; color: var(--ltxt3); }
.lfooter-links a:hover { color: var(--ltxt); }
.lfooter-copy { font-size: 0.75rem; color: var(--ltxt4); }
.lfooter-copy a { color: var(--ltxt4); }
.lfooter-copy a:hover { color: var(--ltxt3); }

/* === 动画 === */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.show { opacity: 1; transform: translateY(0); }

@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

/* === 响应式 === */
@media (max-width: 768px) {
    .lnav .nav a:not(.nav-cta) { display: none; }
    .ham { display: flex; }
    .lsection { padding: 60px 0; }
    .labout-grid { grid-template-columns: 1fr; }
    .lcontact-grid { grid-template-columns: 1fr; }
}
@media (min-width: 769px) {
    .ham { display: none !important; }
    .mobile-menu, .mobile-menu-overlay { display: none !important; }
    .mobile-menu.open { display: none !important; }
    .mobile-menu-overlay.open { display: none !important; }
}

/* === Utility === */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }