/* ========== 全局重置 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: #05070d; color: #e6f1ff; overflow-x: hidden; line-height: 1.7;
}
a { color: inherit; text-decoration: none; }

/* ========== 背景动效 ========== */
.bg-glow {
  position: fixed; inset: 0; z-index: -1; overflow: hidden;
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(0, 212, 255, .25), transparent 60%),
    radial-gradient(900px 500px at 90% 20%, rgba(123, 92, 255, .18), transparent 60%),
    radial-gradient(700px 400px at 50% 110%, rgba(0, 212, 255, .12), transparent 60%),
    linear-gradient(180deg, #05070d 0%, #07091a 100%);
}
.grid {
  position: fixed; inset: 0; z-index: -1;
  background-image:
    linear-gradient(rgba(0, 212, 255, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, .06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
}

/* ========== 导航栏 ========== */
header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(8, 11, 23, .6);
  border-bottom: 1px solid rgba(0, 212, 255, .08);
}
.nav {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; }
.logo-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background-image: url('../OIP.webp');
  background-size: cover; background-position: center; background-repeat: no-repeat;
  box-shadow: 0 0 24px rgba(0, 212, 255, .35);
}
.logo-mark { object-fit: cover; }
.nav-links { display: flex; gap: 28px; font-size: 14px; color: #aab7d4; }
.nav-links a { transition: color .2s; }
.nav-links a:hover { color: #00d4ff; }
.nav-cta {
  padding: 9px 18px; border-radius: 999px;
  background: linear-gradient(135deg, #00d4ff, #7b5cff);
  color: #fff; font-size: 14px; font-weight: 600;
  transition: transform .2s, box-shadow .2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(0, 212, 255, .35); }

/* ========== Hero ========== */
.hero { max-width: 1200px; margin: 0 auto; padding: 90px 24px 60px; text-align: center; position: relative; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  background: rgba(0, 212, 255, .08);
  border: 1px solid rgba(0, 212, 255, .25);
  color: #7ee7ff; font-size: 13px; margin-bottom: 24px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: #00d4ff; box-shadow: 0 0 12px #00d4ff; animation: pulse 1.6s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .5; transform: scale(.85); } }

.hero h1 {
  font-size: clamp(40px, 6vw, 72px); font-weight: 800; line-height: 1.05; letter-spacing: -.02em;
  background: linear-gradient(180deg, #ffffff 0%, #9fc6ff 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero h1 span { background: linear-gradient(135deg, #00d4ff, #7b5cff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { margin-top: 22px; font-size: 18px; color: #aab7d4; max-width: 680px; margin-left: auto; margin-right: auto; }
.hero-cta { margin-top: 36px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn { padding: 14px 28px; border-radius: 12px; font-size: 15px; font-weight: 600; transition: transform .2s, box-shadow .2s; cursor: pointer; border: none; }
.btn-primary { background: linear-gradient(135deg, #00d4ff, #7b5cff); color: #fff; box-shadow: 0 10px 30px rgba(0, 212, 255, .35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(0, 212, 255, .5); }
.btn-ghost { background: rgba(255, 255, 255, .04); color: #e6f1ff; border: 1px solid rgba(255, 255, 255, .12); }
.btn-ghost:hover { background: rgba(255, 255, 255, .08); }

/* ========== 状态卡 ========== */
.status-card {
  margin: 56px auto 0; max-width: 460px; padding: 20px 24px; border-radius: 16px;
  background: linear-gradient(180deg, rgba(0, 212, 255, .06), rgba(123, 92, 255, .04));
  border: 1px solid rgba(0, 212, 255, .18);
  display: flex; align-items: center; gap: 16px; backdrop-filter: blur(8px);
}
.status-icon { width: 48px; height: 48px; border-radius: 12px; background: radial-gradient(circle at 30% 30%, rgba(0, 212, 255, .4), rgba(0, 212, 255, .05)); display: grid; place-items: center; font-size: 22px; }
.status-text { flex: 1; }
.status-text .t1 { font-size: 13px; color: #7ee7ff; }
.status-text .t2 { font-size: 15px; font-weight: 600; margin-top: 2px; }

/* ========== 通用区块 ========== */
.section { max-width: 1200px; margin: 0 auto; padding: 80px 24px; }
.section-title { text-align: center; margin-bottom: 56px; }
.section-title h2 { font-size: clamp(28px, 4vw, 44px); font-weight: 800; background: linear-gradient(180deg, #fff, #9fc6ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.section-title p { color: #aab7d4; margin-top: 12px; font-size: 16px; }
.section-en { color: rgba(0, 212, 255, .6); font-size: 12px; letter-spacing: 2px; text-transform: uppercase; display: block; margin-bottom: 10px; }

/* ========== 性能数据 ========== */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; }
.stat {
  padding: 28px 20px; border-radius: 14px;
  background: linear-gradient(180deg, rgba(0,212,255,.06), rgba(123,92,255,.03));
  border: 1px solid rgba(0,212,255,.15); text-align: center;
}
.stat .num { font-size: 40px; font-weight: 900; background: linear-gradient(135deg, #00d4ff, #7b5cff); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1; }
.stat .label { color: #aab7d4; font-size: 13.5px; margin-top: 8px; }
.stat .sub { color: #6e7a96; font-size: 11.5px; margin-top: 4px; }

/* ========== 特性 ========== */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.feature {
  position: relative; padding: 32px; border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
  border: 1px solid rgba(255,255,255,.06);
  transition: transform .25s, border-color .25s, box-shadow .25s; overflow: hidden;
}
.feature::before { content: ""; position: absolute; inset: 0; background: radial-gradient(400px circle at var(--x, 50%) var(--y, 0%), rgba(0,212,255,.12), transparent 40%); opacity: 0; transition: opacity .3s; }
.feature:hover { transform: translateY(-4px); border-color: rgba(0, 212, 255, .35); box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.feature:hover::before { opacity: 1; }
.feature .icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-size: 24px; background: linear-gradient(135deg, rgba(0,212,255,.2), rgba(123,92,255,.15)); border: 1px solid rgba(0,212,255,.25); margin-bottom: 18px; }
.feature h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.feature p { color: #aab7d4; font-size: 14.5px; line-height: 1.7; }
.feature .detail { margin-top: 12px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.06); font-size: 13px; color: #7a8aaa; }
.feature .detail li { list-style: none; padding: 3px 0; display: flex; gap: 6px; align-items: center; }
.feature .detail li::before { content: "→"; color: #00d4ff; font-size: 11px; }

/* ========== 场景 ========== */
.scenes { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.scene { padding: 24px; border-radius: 14px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06); transition: all .2s; }
.scene:hover { background: rgba(0,212,255,.06); border-color: rgba(0,212,255,.3); transform: translateY(-2px); }
.scene .ico { font-size: 28px; margin-bottom: 12px; }
.scene h4 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.scene p { color: #aab7d4; font-size: 13.5px; }

/* ========== 对比表 ========== */
.compare { width: 100%; border-collapse: collapse; margin-top: 10px; }
.compare th { text-align: left; padding: 14px 18px; border-bottom: 1px solid rgba(0,212,255,.2); color: #7ee7ff; font-size: 13px; }
.compare td { padding: 13px 18px; border-bottom: 1px solid rgba(255,255,255,.04); color: #aab7d4; font-size: 14px; }
.compare tr:hover td { background: rgba(0,212,255,.04); }
.compare .check { color: #00d4ff; font-size: 16px; }
.compare .cross { color: #ff5f57; font-size: 16px; }
.compare .highlight { background: rgba(0,212,255,.08); }
.compare .highlight td { color: #e6f1ff; font-weight: 600; }

/* ========== 预览 ========== */
.preview { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.preview-card {
  aspect-ratio: 16 / 10; border-radius: 16px;
  background: linear-gradient(135deg, rgba(0, 212, 255, .15), rgba(123, 92, 255, .1)), radial-gradient(circle at 30% 20%, rgba(0, 212, 255, .25), transparent 50%), linear-gradient(180deg, #0a1024, #07091a);
  border: 1px solid rgba(0,212,255,.2); position: relative; overflow: hidden;
}
.preview-card::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(0,212,255,.1) 1px, transparent 1px), linear-gradient(90deg, rgba(0,212,255,.1) 1px, transparent 1px); background-size: 30px 30px; opacity: .5; }
.preview-bar { position: absolute; top: 14px; left: 14px; right: 14px; display: flex; gap: 6px; z-index: 1; }
.preview-bar span { width: 10px; height: 10px; border-radius: 50%; }
.preview-bar span:nth-child(1) { background: #ff5f57; }
.preview-bar span:nth-child(2) { background: #febc2e; }
.preview-bar span:nth-child(3) { background: #28c840; }
.preview-label { position: absolute; bottom: 14px; left: 14px; right: 14px; color: rgba(255,255,255,.4); font-size: 12px; text-align: center; z-index: 1; }

/* ========== 步骤 ========== */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.step { padding: 28px; border-radius: 16px; background: linear-gradient(180deg, rgba(0, 212, 255, .05), rgba(123, 92, 255, .03)); border: 1px solid rgba(0, 212, 255, .15); position: relative; }
.step-num { position: absolute; top: -14px; left: 24px; width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, #00d4ff, #7b5cff); display: grid; place-items: center; font-weight: 800; color: #05070d; box-shadow: 0 8px 20px rgba(0, 212, 255, .35); }
.step h3 { margin-top: 14px; font-size: 19px; }
.step p { margin-top: 8px; color: #aab7d4; font-size: 14.5px; }
.step .note { margin-top: 12px; padding: 10px 12px; border-radius: 8px; background: rgba(0,212,255,.06); font-size: 13px; color: #7ee7ff; }

/* ========== 平台 ========== */
.platforms { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
.plat { padding: 22px; border-radius: 14px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06); display: flex; align-items: center; gap: 12px; transition: all .2s; cursor: pointer; }
.plat:hover { background: rgba(0,212,255,.08); border-color: rgba(0,212,255,.4); transform: translateY(-2px); }
.plat-ico { width: 38px; height: 38px; border-radius: 9px; background: linear-gradient(135deg, #00d4ff, #7b5cff); display: grid; place-items: center; color: #fff; font-weight: 700; }
.plat-name { font-weight: 600; }
.plat-sub { font-size: 12px; color: #7ee7ff; margin-top: 2px; }

/* ========== 证书 ========== */
.certs { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin-top: 40px; }
.cert { padding: 12px 20px; border-radius: 10px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06); font-size: 13px; color: #aab7d4; display: flex; align-items: center; gap: 8px; }
.cert .ico { color: #00d4ff; font-size: 16px; }

/* ========== CTA ========== */
.cta-section { padding: 80px 24px; text-align: center; background: linear-gradient(180deg, rgba(0,212,255,.04), rgba(123,92,255,.03)); border-top: 1px solid rgba(0,212,255,.1); border-bottom: 1px solid rgba(0,212,255,.1); }
.cta-section h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; margin-bottom: 14px; background: linear-gradient(180deg, #fff, #9fc6ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.cta-section p { color: #aab7d4; font-size: 16px; max-width: 560px; margin: 0 auto 30px; }

/* ========== 页脚 ========== */
footer { border-top: 1px solid rgba(255,255,255,.06); padding: 48px 24px; }
.footer-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand p { color: #6e7a96; font-size: 13.5px; margin-top: 12px; max-width: 280px; line-height: 1.7; }
.footer-col h4 { font-size: 13px; color: #e6f1ff; margin-bottom: 14px; }
.footer-col a { display: block; color: #6e7a96; font-size: 13.5px; padding: 5px 0; transition: color .2s; }
.footer-col a:hover { color: #00d4ff; }
.footer-bottom { max-width: 1200px; margin: 30px auto 0; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.04); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom span { color: #6e7a96; font-size: 13px; }

/* ========== 响应式 ========== */
@media (max-width: 960px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 720px) {
  .nav-links { display: none; }
  .hero { padding: 60px 20px 40px; }
  .section { padding: 60px 20px; }
  .footer-grid { grid-template-columns: 1fr; }
}