/* ========== 全局变量与重置 ========== */
:root {
  --brand: #4f46e5;
  --brand-2: #7c3aed;
  --brand-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  --dark: #0f172a;
  --dark-2: #1e293b;
  --text: #1e293b;
  --sub: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --ok: #059669;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { opacity: 0.85; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ========== 顶部导航 ========== */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-brand { font-weight: 800; font-size: 18px; display: flex; align-items: center; gap: 8px; color: var(--text); }
.nav-brand .logo { width: 30px; height: 30px; border-radius: 8px; background: var(--brand-gradient); display: inline-flex; align-items: center; justify-content: center; font-size: 16px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--text); font-size: 14.5px; font-weight: 500; }
.nav-links a:hover { color: var(--brand); opacity: 1; }
.nav-cta {
  background: var(--brand-gradient); color: #fff !important;
  padding: 8px 18px; border-radius: 999px; font-weight: 600; font-size: 14px;
}
.nav-cta:hover { opacity: 0.9; }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: flex-start;
    padding: 16px 24px 24px; gap: 16px; border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(15,23,42,0.1);
  }
  .nav-links.open { display: flex; }
}

/* ========== 首屏 Hero ========== */
.hero {
  background: radial-gradient(1000px 500px at 80% -10%, rgba(124,58,237,0.15), transparent 60%),
              radial-gradient(800px 400px at 10% 110%, rgba(79,70,229,0.12), transparent 60%),
              var(--dark);
  color: #e2e8f0;
  padding: 96px 0 88px;
}
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  color: #c7d2fe; font-size: 13px; padding: 6px 14px; border-radius: 999px; margin-bottom: 24px;
}
.hero h1 {
  font-size: 42px; line-height: 1.25; font-weight: 800; color: #fff;
  margin-bottom: 20px; letter-spacing: -0.5px;
}
.hero h1 .hl {
  background: linear-gradient(135deg, #818cf8, #c084fc);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.sub { font-size: 17px; color: #94a3b8; margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 30px; border-radius: 999px; font-weight: 700; font-size: 15.5px;
  cursor: pointer; border: none; transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--brand-gradient); color: #fff; box-shadow: 0 8px 24px rgba(79,70,229,0.35); }
.btn-ghost { background: transparent; color: #e2e8f0; border: 1.5px solid rgba(255,255,255,0.25); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.5); }
.hero-proof { display: flex; gap: 40px; margin-top: 44px; flex-wrap: wrap; }
.hero-proof .item .num { font-size: 26px; font-weight: 800; color: #fff; }
.hero-proof .item .label { font-size: 13px; color: #94a3b8; }
.hero-card {
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px; padding: 32px; backdrop-filter: blur(8px);
}
.hero-card h3 { color: #fff; font-size: 18px; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.hero-card ul { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.hero-card li { color: #cbd5e1; font-size: 14.5px; display: flex; gap: 10px; align-items: flex-start; }
.hero-card li .g { font-size: 17px; }
.hero-card .risk { margin-top: 20px; padding-top: 16px; border-top: 1px dashed rgba(255,255,255,0.2); color: #6ee7b7; font-size: 13.5px; }

/* ========== 通用区块 ========== */
.section { padding: 84px 0; }
.section.alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-head .tag {
  display: inline-block; font-size: 13px; font-weight: 700; color: var(--brand);
  background: rgba(79,70,229,0.08); padding: 5px 14px; border-radius: 999px; margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.section-head h2 { font-size: 32px; font-weight: 800; letter-spacing: -0.3px; margin-bottom: 12px; }
.section-head p { color: var(--sub); font-size: 16px; }

/* ========== 痛点区 ========== */
.pains { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pain {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; transition: transform 0.15s, box-shadow 0.15s;
}
.pain:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.pain .emoji { font-size: 28px; margin-bottom: 14px; }
.pain h4 { font-size: 16.5px; margin-bottom: 8px; }
.pain p { font-size: 14px; color: var(--sub); }

/* ========== 三步路径 ========== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; position: relative;
}
.step .no {
  font-size: 13px; font-weight: 800; color: #fff; background: var(--brand-gradient);
  width: 34px; height: 34px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.step h4 { font-size: 17px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--sub); }

/* ========== 数据条 ========== */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 20px; text-align: center;
}
.stat .num { font-size: 34px; font-weight: 800; background: var(--brand-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat .label { font-size: 14px; color: var(--sub); margin-top: 6px; }

/* ========== 产品矩阵 ========== */
.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.product {
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  padding: 30px 26px; display: flex; flex-direction: column; transition: transform 0.15s, box-shadow 0.15s;
}
.product:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.product .icon { font-size: 30px; margin-bottom: 14px; }
.product .hot {
  align-self: flex-start; font-size: 12px; font-weight: 700; color: #fff; background: #f59e0b;
  padding: 3px 10px; border-radius: 999px; margin-bottom: 12px;
}
.product h4 { font-size: 18px; margin-bottom: 6px; }
.product .who { font-size: 13px; color: var(--brand); font-weight: 600; margin-bottom: 12px; }
.product ul { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; flex: 1; }
.product li { font-size: 14px; color: var(--sub); display: flex; gap: 8px; }
.product li::before { content: "✓"; color: var(--ok); font-weight: 700; }
.product .btn { justify-content: center; }

/* ========== 干货区 ========== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  padding: 28px 24px; transition: transform 0.15s, box-shadow 0.15s; display: block; color: var(--text);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); color: var(--text); opacity: 1; }
.card .icon { font-size: 30px; margin-bottom: 14px; }
.card h4 { font-size: 17px; margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--sub); }

/* ========== 学员反馈 ========== */
.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.testi {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px;
}
.testi .stars { color: #f59e0b; font-size: 15px; margin-bottom: 12px; letter-spacing: 2px; }
.testi p { font-size: 14.5px; color: var(--text); margin-bottom: 16px; }
.testi .who { font-size: 13.5px; color: var(--sub); font-weight: 600; }
.testi .note { font-size: 12px; color: #94a3b8; margin-top: 4px; }

/* ========== 表单区 ========== */
.capture { background: var(--dark); position: relative; overflow: hidden; }
.capture::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 300px at 90% 20%, rgba(124,58,237,0.25), transparent 60%),
              radial-gradient(500px 300px at 10% 90%, rgba(79,70,229,0.2), transparent 60%);
}
.capture .wrap { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; position: relative; }
.capture-left h2 { color: #fff; font-size: 32px; font-weight: 800; margin-bottom: 14px; }
.capture-left h2 .hl { color: #a5b4fc; }
.capture-left > p { color: #94a3b8; margin-bottom: 24px; }
.gift-list { list-style: none; display: flex; flex-direction: column; gap: 14px; margin-bottom: 24px; }
.gift-list li { color: #cbd5e1; font-size: 15px; display: flex; gap: 10px; align-items: center; }
.gift-list .g { font-size: 18px; }
.risk { color: #6ee7b7; font-size: 14px; }

.capture-form {
  background: #fff; border-radius: 20px; padding: 34px 30px; box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}
.capture-form .field { margin-bottom: 18px; }
.capture-form label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.capture-form label .req { color: var(--brand); }
.capture-form input, .capture-form select {
  width: 100%; padding: 12px 16px; border: 1.5px solid var(--line); border-radius: 10px;
  font-size: 15px; font-family: inherit; color: var(--text); background: var(--bg-soft);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.capture-form input:focus, .capture-form select:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(79,70,229,0.12); background: #fff;
}
.capture-form .btn { width: 100%; justify-content: center; margin-top: 6px; }
.form-note { text-align: center; font-size: 13px; color: var(--sub); margin-top: 14px; }
.form-ok { display: none; text-align: center; padding: 20px 0; }
.form-ok .big { font-size: 48px; margin-bottom: 10px; }
.form-ok h3 { font-size: 22px; margin-bottom: 10px; }
.form-ok p { color: var(--sub); font-size: 14.5px; }

/* ========== FAQ ========== */
.faqs { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 26px; cursor: pointer; transition: box-shadow 0.15s;
}
.faq:hover { box-shadow: var(--shadow); }
.faq .q { font-weight: 700; font-size: 16px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq .q .arrow { color: var(--sub); transition: transform 0.2s; flex-shrink: 0; }
.faq.open .q .arrow { transform: rotate(180deg); }
.faq .a { display: none; color: var(--sub); font-size: 14.5px; padding-top: 12px; }
.faq.open .a { display: block; }

/* ========== 底部 CTA ========== */
.final-cta { text-align: center; background: var(--bg-soft); }
.final-cta h2 { font-size: 30px; font-weight: 800; margin-bottom: 12px; }
.final-cta p { color: var(--sub); margin-bottom: 28px; }

/* ========== Footer ========== */
.footer { background: var(--dark); color: #94a3b8; padding: 56px 0 40px; }
.footer .wrap { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer .brand { font-size: 18px; font-weight: 800; color: #fff; display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.footer .brand .logo { width: 28px; height: 28px; border-radius: 7px; background: var(--brand-gradient); display: inline-flex; align-items: center; justify-content: center; font-size: 15px; }
.footer p.desc { font-size: 13.5px; max-width: 280px; }
.footer .cols { display: flex; gap: 56px; flex-wrap: wrap; }
.footer .col h5 { color: #e2e8f0; font-size: 14px; margin-bottom: 14px; }
.footer .col a { display: block; color: #94a3b8; font-size: 13.5px; margin-bottom: 8px; }
.footer .col a:hover { color: #fff; opacity: 1; }
.footer .copy { text-align: center; font-size: 12.5px; margin-top: 40px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08); }

/* ========== 内页通用 ========== */
.page-hero { background: var(--dark); color: #e2e8f0; padding: 72px 0 64px; position: relative; overflow: hidden; }
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(700px 350px at 85% 10%, rgba(124,58,237,0.2), transparent 60%);
}
.page-hero .wrap { position: relative; }
.page-hero .crumb { font-size: 13px; color: #94a3b8; margin-bottom: 14px; }
.page-hero .crumb a { color: #a5b4fc; }
.page-hero h1 { font-size: 36px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.page-hero p { font-size: 16.5px; color: #94a3b8; max-width: 640px; }

.prose { max-width: 760px; margin: 0 auto; font-size: 16px; }
.prose h2 { font-size: 24px; margin: 44px 0 16px; font-weight: 800; }
.prose h3 { font-size: 19px; margin: 32px 0 12px; font-weight: 700; }
.prose p { margin-bottom: 18px; color: #334155; }
.prose ul, .prose ol { margin: 0 0 18px 22px; color: #334155; }
.prose li { margin-bottom: 8px; }
.prose blockquote {
  border-left: 4px solid var(--brand); background: rgba(79,70,229,0.05);
  padding: 14px 20px; border-radius: 0 10px 10px 0; margin: 24px 0; color: #475569;
}
.prose .tip {
  background: rgba(5,150,105,0.08); border: 1px solid rgba(5,150,105,0.2);
  border-radius: 10px; padding: 14px 18px; font-size: 14.5px; color: #065f46; margin: 20px 0;
}

/* ========== 列表页 ========== */
.article-list { display: flex; flex-direction: column; gap: 16px; max-width: 760px; margin: 0 auto; }
.article-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 26px; display: block; color: var(--text); transition: transform 0.15s, box-shadow 0.15s;
}
.article-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); color: var(--text); opacity: 1; }
.article-item .tag-row { display: flex; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.article-item .tag2 {
  font-size: 12px; font-weight: 700; color: var(--brand); background: rgba(79,70,229,0.08);
  padding: 3px 10px; border-radius: 999px;
}
.article-item h3 { font-size: 18px; margin-bottom: 6px; }
.article-item p { font-size: 14px; color: var(--sub); }

/* ========== 案例页 ========== */
.case-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card {
  background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 26px;
  transition: transform 0.15s, box-shadow 0.15s;
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.case-card .who2 { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.case-card .role { font-size: 12.5px; color: var(--brand); margin-bottom: 12px; }
.case-card p { font-size: 14px; color: var(--sub); }

/* ========== 企业内训 ========== */
.ent-benefits { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.ent-benefit {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; display: flex; gap: 16px;
}
.ent-benefit .icon { font-size: 26px; flex-shrink: 0; }
.ent-benefit h4 { font-size: 16.5px; margin-bottom: 6px; }
.ent-benefit p { font-size: 14px; color: var(--sub); }

/* ========== 响应式 ========== */
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 64px 0; }
  .hero h1 { font-size: 32px; }
  .pains, .steps, .stats, .products, .cards, .testimonials, .case-cards { grid-template-columns: 1fr; }
  .ent-benefits { grid-template-columns: 1fr; }
  .capture .wrap { grid-template-columns: 1fr; gap: 36px; }
  .section { padding: 56px 0; }
  .section-head h2 { font-size: 26px; }
}