/* ===== 官网首页样式 ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Microsoft YaHei", system-ui, -apple-system, sans-serif; background: #f4f7fb; color: #2b3340; line-height: 1.7; }
a { text-decoration: none; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ===== 顶部 Hero ===== */
.hero { background: linear-gradient(135deg,#1677ff 0%,#2f8cff 55%,#69b1ff 100%); color: #fff; padding: 64px 0 72px; }
.hero .wrap { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; }
.hero-left { flex: 1; min-width: 300px; }
.logo-badge { display: inline-flex; align-items: center; gap: 10px; background: rgba(255,255,255,.16); padding: 6px 16px; border-radius: 20px; font-size: 13px; margin-bottom: 20px; }
.logo-badge b { font-size: 15px; }
.hero h1 { font-size: 38px; font-weight: 700; margin-bottom: 14px; letter-spacing: 1px; }
.hero .slogan { font-size: 17px; opacity: .92; margin-bottom: 30px; max-width: 560px; }
.btn { display: inline-flex; flex-direction: column; gap: 2px; border-radius: 12px; padding: 14px 34px; transition: transform .15s, box-shadow .15s; }
.btn.primary { background: #fff; color: #1677ff; box-shadow: 0 8px 22px rgba(0,40,100,.22); }
.btn.primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0,40,100,.28); }
.btn.disabled { background: rgba(255,255,255,.25); color: #fff; cursor: not-allowed; }
.btn-main { font-size: 18px; font-weight: 700; }
.btn-sub { font-size: 12px; opacity: .75; }
.hero-right { width: 280px; flex-shrink: 0; }
.hero-card { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25); border-radius: 16px; padding: 24px; text-align: center; backdrop-filter: blur(6px); }
.hero-card .ver { font-size: 30px; font-weight: 700; }
.hero-card .ver span { font-size: 15px; font-weight: 400; opacity: .85; }
.hero-card ul { list-style: none; margin-top: 14px; font-size: 13px; opacity: .9; text-align: left; display: inline-block; }
.hero-card li { padding: 3px 0; }
.hero-card li::before { content: "✓ "; font-weight: 700; }

/* ===== 通用区块 ===== */
section { padding: 56px 0; }
.sec-title { text-align: center; font-size: 26px; font-weight: 700; margin-bottom: 8px; }
.sec-sub { text-align: center; color: #8892a3; font-size: 14px; margin-bottom: 38px; }

/* ===== 功能分类卡片 ===== */
.feature-cats { display: grid; grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); gap: 20px; }
.feature-cat { background: #fff; border-radius: 14px; padding: 24px 22px; box-shadow: 0 3px 14px rgba(30,60,110,.07); transition: transform .15s, box-shadow .15s; }
.feature-cat:hover { transform: translateY(-4px); box-shadow: 0 10px 26px rgba(30,60,110,.12); }
.cat-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid #eef2f8; }
.cat-ico { width: 38px; height: 38px; border-radius: 10px; background: #e8f2ff; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.cat-head h3 { font-size: 17px; color: #1c3d66; }
.cat-list { list-style: none; }
.cat-list li { position: relative; padding: 6px 0 6px 16px; font-size: 13.5px; color: #4a5568; line-height: 1.6; }
.cat-list li::before { content: ""; position: absolute; left: 0; top: 13px; width: 6px; height: 6px; border-radius: 50%; background: #1677ff; }

/* ===== 底部 ===== */
footer { background: #1f2d3d; color: #93a3b8; text-align: center; padding: 26px 20px; font-size: 12.5px; line-height: 2; }
footer .footer-line { color: #93a3b8; }
footer .footer-icp a { color: #7fb0e8; }
footer .footer-icp a:hover { color: #a7cbff; text-decoration: underline; }

/* ===== 软件界面轮播（融入蓝色 hero 区域，横贯两栏之上） ===== */
.shot-track { position: relative; flex-basis: 100%; width: 100%; aspect-ratio: 981 / 150; }
.shot { position: absolute; inset: 0; margin: 0; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity .6s ease, visibility .6s; }
.shot.active { opacity: 1; visibility: visible; }
.shot img { max-width: 100%; max-height: 100%; object-fit: contain; border: 1px solid rgba(255,255,255,.35); border-radius: 10px; box-shadow: 0 10px 30px rgba(0,40,100,.35); }
.shot-dots { flex-basis: 100%; display: flex; justify-content: center; gap: 10px; }
.dot { width: 10px; height: 10px; padding: 0; border: none; border-radius: 50%; background: rgba(255,255,255,.35); cursor: pointer; transition: background .15s, transform .15s; }
.dot:hover { background: rgba(255,255,255,.6); }
.dot.active { background: #fff; transform: scale(1.15); }

/* ===== 右侧悬浮联系栏 ===== */
.float-bar { position: fixed; right: 16px; top: 50%; transform: translateY(-50%); z-index: 99; display: flex; flex-direction: column; gap: 12px; }
.float-item { position: relative; width: 52px; height: 52px; border-radius: 12px; background: #fff; box-shadow: 0 4px 16px rgba(30,60,110,.16); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: background .15s, box-shadow .15s; }
.float-item:hover, .float-item.show { background: #1677ff; box-shadow: 0 8px 22px rgba(22,119,255,.35); }
.float-ico { font-size: 13px; font-weight: 700; color: #1677ff; transition: color .15s; }
.float-ico.wx { font-size: 12px; }
.float-item:hover .float-ico, .float-item.show .float-ico { color: #fff; }
.float-pop { position: absolute; right: 64px; top: 50%; transform: translateY(-50%) translateX(10px); background: #fff; border-radius: 12px; box-shadow: 0 10px 30px rgba(20,50,100,.2); padding: 16px 20px; text-align: center; white-space: nowrap; opacity: 0; visibility: hidden; transition: opacity .18s ease, transform .18s ease, visibility .18s; }
.float-item:hover .float-pop, .float-item.show .float-pop { opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0); }
.pop-title { font-size: 12px; color: #8892a3; }
.pop-qq { font-size: 22px; font-weight: 700; color: #1677ff; letter-spacing: 1px; margin: 2px 0; }
.pop-hint { font-size: 11px; color: #b6c0cf; }
.float-pop-qr { padding: 12px; }
.float-pop-qr img { width: 140px; height: 140px; display: block; border-radius: 8px; background: #f4f7fb; }
.float-pop-qr .pop-title { margin-top: 8px; }

@media (max-width: 640px) {
  .float-bar { right: 10px; gap: 10px; }
  .float-item { width: 44px; height: 44px; border-radius: 10px; }
  .float-pop { right: 54px; }
  .float-pop-qr img { width: 120px; height: 120px; }
  .hero { padding: 44px 0 52px; }
  .hero h1 { font-size: 28px; }
  .hero-right { width: 100%; }
  .sec-title { font-size: 22px; }
  section { padding: 40px 0; }
}