/* +----------------------------------------------------------------------
   | 官网样式（与后台同色板，随 data-theme 切换）
   +---------------------------------------------------------------------- */

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.93); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
html[data-theme='dark'] .nav { background: rgba(26,33,36,.93); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; color: var(--brand); }
.brand .logo {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 18px; overflow: hidden;
}
.nav-links { display: flex; gap: 26px; font-size: 15px; color: var(--muted); }
.nav-links a:hover { color: var(--brand); }
.nav-cta { display: flex; gap: 10px; align-items: center; }
.menu-btn { display: none; font-size: 22px; background: none; border: 0; color: var(--brand); cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(1100px 500px at 82% -8%, rgba(232,179,57,.18), transparent),
              linear-gradient(180deg, #fff, var(--bg));
}
html[data-theme='dark'] .hero { background: linear-gradient(180deg, #171d20, var(--bg)); }
.hero .wrap {
  display: grid; grid-template-columns: 1.08fr .92fr; gap: 44px;
  align-items: center; padding: 66px 20px 78px;
}
.badge {
  display: inline-flex; align-items: center; gap: 6px; background: var(--tint); color: var(--brand-2);
  font-size: 13px; font-weight: 600; padding: 5px 13px; border-radius: 999px; margin-bottom: 18px;
}
.hero h1 { font-size: 42px; line-height: 1.25; margin: 0 0 16px; font-weight: 800; letter-spacing: -.5px; }
.hero h1 em { font-style: normal; color: var(--brand); }
.hero .lead { font-size: 17px; color: var(--muted); line-height: 1.85; margin: 0 0 26px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }
.hero-meta { display: flex; gap: 26px; flex-wrap: wrap; font-size: 13px; color: var(--ink-3); }
.hero-meta b { color: var(--brand); font-size: 20px; font-weight: 800; display: block; }

/* 产品截图模拟 */
.mock {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); overflow: hidden;
}
.mock-bar { height: 38px; background: var(--bg); border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 6px; padding: 0 14px; }
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: #dfe5e2; display: block; }
.mock-bar i:first-child { background: #f0a3a3; } .mock-bar i:nth-child(2) { background: #f2d19b; }
.mock-bar i:nth-child(3) { background: #a8dfc6; }
.mock-bd { padding: 14px; }
.mock-row { display: flex; gap: 10px; margin-bottom: 12px; }
.mock-cat { width: 78px; display: flex; flex-direction: column; gap: 7px; }
.mock-cat span { height: 26px; border-radius: 7px; background: var(--tint); }
.mock-cat span.on { background: var(--brand); }
.mock-goods { flex: 1; display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; }
.mock-goods span { height: 44px; border-radius: 9px; background: var(--bg); border: 1px solid var(--line); }
.mock-cart { background: var(--bg); border-radius: 10px; padding: 10px; }
.mock-cart div { height: 11px; border-radius: 5px; background: var(--line); margin-bottom: 8px; }
.mock-cart div.t { width: 45%; height: 15px; background: var(--brand); opacity: .55; }

/* ---------- 通用区块 ---------- */
.sec { padding: 72px 0; }
.sec-alt { background: var(--card); }
.sec-hd { text-align: center; max-width: 660px; margin: 0 auto 42px; }
.sec-hd h2 { font-size: 32px; margin: 0 0 12px; font-weight: 800; letter-spacing: -.3px; }
.sec-hd p { color: var(--muted); font-size: 16px; margin: 0; line-height: 1.8; }
.sec-tag { display: inline-block; background: var(--tint); color: var(--brand-2); font-size: 13px;
  font-weight: 700; padding: 5px 14px; border-radius: 999px; margin-bottom: 14px; }

/* 功能卡 */
.feat-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; transition: .2s; height: 100%;
}
.feat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--brand); }
.feat-card .ico {
  width: 48px; height: 48px; border-radius: 14px; background: var(--tint); color: var(--brand);
  display: flex; align-items: center; justify-content: center; font-size: 23px; margin-bottom: 14px;
}
.feat-card h4 { margin: 0 0 8px; font-size: 17px; font-weight: 700; }
.feat-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }

/* 数字条 */
.numbers { background: linear-gradient(135deg, var(--brand-deep), var(--brand)); color: #fff; }
.numbers .wrap { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; padding: 46px 20px; text-align: center; }
.numbers .n { font-size: 38px; font-weight: 800; line-height: 1.2; }
.numbers .l { font-size: 14px; opacity: .85; }

/* 行业卡 */
.ind-card {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: var(--card);
  display: flex; gap: 14px; align-items: flex-start; transition: .2s;
}
.ind-card:hover { border-color: var(--brand); box-shadow: var(--shadow-sm); }
.ind-card .ico { width: 42px; height: 42px; border-radius: 12px; background: var(--tint); color: var(--brand);
  display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.ind-card h4 { margin: 0 0 5px; font-size: 16px; }
.ind-card p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.75; }

/* 多端支持 */
.dev-grid { display: grid; grid-template-columns: repeat(6,1fr); gap: 14px; }
.dev {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 14px; text-align: center; transition: .2s;
}
.dev:hover { transform: translateY(-3px); border-color: var(--brand); box-shadow: var(--shadow-sm); }
.dev i { font-size: 32px; color: var(--brand); display: block; margin-bottom: 10px; }
.dev b { font-size: 15px; display: block; }
.dev span { font-size: 12px; color: var(--ink-3); }

/* 价格 */
.price-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; align-items: stretch; }
.price-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 30px; display: flex; flex-direction: column; position: relative;
}
.price-card.hot { border: 2px solid var(--brand); box-shadow: var(--shadow); }
.price-card .hot-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--brand); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 14px; border-radius: 999px;
}
.price-card h3 { margin: 0 0 6px; font-size: 20px; }
.price-card .desc { font-size: 13px; color: var(--ink-3); margin-bottom: 18px; }
.price-card .amt { font-size: 38px; font-weight: 800; color: var(--brand); line-height: 1.1; }
.price-card .amt small { font-size: 15px; font-weight: 600; color: var(--muted); }
.price-card ul { list-style: none; padding: 0; margin: 20px 0 26px; flex: 1; }
.price-card ul li { padding: 7px 0; font-size: 14px; color: var(--muted); display: flex; gap: 8px; align-items: flex-start; }
.price-card ul li i { color: var(--brand); font-size: 16px; flex-shrink: 0; margin-top: 2px; }

/* 优势 */
.adv { display: flex; gap: 18px; align-items: flex-start; }
.adv .no {
  width: 40px; height: 40px; border-radius: 12px; background: var(--tint); color: var(--brand);
  display: flex; align-items: center; justify-content: center; font-weight: 800; flex-shrink: 0;
}
.adv h4 { margin: 0 0 6px; font-size: 16px; }
.adv p { margin: 0; font-size: 14px; color: var(--muted); line-height: 1.8; }

/* FAQ */
.faq { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); overflow: hidden; }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:last-child { border-bottom: 0; }
.faq summary {
  padding: 16px 20px; cursor: pointer; font-weight: 600; font-size: 15px; list-style: none;
  display: flex; align-items: center; justify-content: space-between;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '\F282'; font-family: 'bootstrap-icons'; color: var(--ink-3); transition: .2s; }
.faq details[open] summary::after { transform: rotate(180deg); }
.faq details p { padding: 0 20px 18px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.85; }

/* 案例 */
.case-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.case-card .q { font-size: 15px; color: var(--muted); line-height: 1.9; margin: 0 0 18px; }
.case-card .who { display: flex; align-items: center; gap: 12px; }
.case-card .who .av { width: 42px; height: 42px; border-radius: 50%; background: var(--tint); color: var(--brand);
  display: flex; align-items: center; justify-content: center; font-weight: 800; }
.case-card .who b { font-size: 15px; display: block; }
.case-card .who span { font-size: 13px; color: var(--ink-3); }

/* CTA */
.cta { background: linear-gradient(135deg, var(--brand-deep), var(--brand)); color: #fff; text-align: center; }
.cta .wrap { padding: 62px 20px; }
.cta h2 { font-size: 32px; margin: 0 0 12px; font-weight: 800; }
.cta p { opacity: .9; font-size: 16px; margin: 0 0 26px; }
.cta .btn-ghost { border-color: rgba(255,255,255,.5); color: #fff; background: rgba(255,255,255,.1); }
.cta .btn-ghost:hover { background: rgba(255,255,255,.2); }
.cta .btn-primary { background: #fff; color: var(--brand); }
.cta .btn-primary:hover { background: #f0f7f4; }

/* 页脚 */
.footer { background: var(--card); border-top: 1px solid var(--line); padding: 52px 0 0; }
.f-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 34px; padding-bottom: 34px; }
.f-col h5 { font-size: 15px; margin: 0 0 14px; font-weight: 700; }
.f-col a { display: block; font-size: 14px; color: var(--muted); padding: 5px 0; }
.f-col a:hover { color: var(--brand); }
.f-bottom {
  border-top: 1px solid var(--line); padding: 18px 0 24px; display: flex;
  justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  font-size: 13px; color: var(--ink-3);
}
html[data-theme='dark'] .footer,
html[data-theme='dark'] .f-bottom { background: var(--card); }

/* 响应式 */
@media (max-width: 980px) {
  .hero .wrap { grid-template-columns: 1fr; padding: 42px 20px 52px; }
  .hero h1 { font-size: 32px; }
  .dev-grid { grid-template-columns: repeat(3,1fr); }
  .price-grid { grid-template-columns: 1fr; }
  .f-grid { grid-template-columns: 1fr 1fr; }
  .numbers .wrap { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 720px) {
  .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; background: var(--card);
    flex-direction: column; gap: 0; padding: 10px 20px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .menu-btn { display: block; }
  .nav-cta .btn-ghost { display: none; }
  .sec { padding: 48px 0; }
  .sec-hd h2 { font-size: 25px; }
  .dev-grid { grid-template-columns: repeat(2,1fr); }
  .f-grid { grid-template-columns: 1fr; }
}