/* ============ Tokens ============ */
:root{
  --bg:#0a0d14;
  --bg-2:#0f131c;
  --bg-soft:#f6f8fc;
  --ink:#0b1220;
  --ink-2:#1a2233;
  --muted:#5b6577;
  --line:rgba(255,255,255,.08);
  --line-dark:rgba(15,20,30,.08);
  --brand:#3b82f6;
  --brand-2:#7c5cff;
  --accent:#22d3ee;
  --grad:linear-gradient(135deg,#7c5cff 0%,#3b82f6 50%,#22d3ee 100%);
  --shadow:0 20px 60px rgba(8,15,40,.12);
  --radius:16px;
  --radius-lg:22px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter','Noto Sans SC',system-ui,-apple-system,Segoe UI,Roboto,'Helvetica Neue',Arial,sans-serif;
  color:var(--ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  line-height:1.6;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 24px}

/* ============ Nav ============ */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(10,13,20,.7);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
  color:#fff;
}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.nav__links{display:flex;gap:28px;font-size:14px;color:#cfd6e4}
.nav__links a{transition:color .2s}
.nav__links a:hover{color:#fff}

.brand{display:flex;align-items:center;gap:10px;font-weight:800}
.brand__mark{
  width:32px;height:32px;border-radius:8px;
  object-fit:contain;
  display:block;
  background:transparent;
  box-shadow:none;
}
/* 如果是 img 元素以外的占位块（fallback） */
span.brand__mark{
  display:grid;place-items:center;font-size:16px;
  background:var(--grad);
  box-shadow:0 6px 20px rgba(124,92,255,.5);
}
.brand__name{font-size:18px;letter-spacing:.5px}
.brand__name span{color:var(--accent);margin-left:2px}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;border-radius:999px;
  font-weight:600;font-size:14px;
  transition:transform .15s ease, box-shadow .2s ease, background .2s;
  cursor:pointer;border:0;
}
.btn--primary{
  background:var(--grad);color:#fff;
  box-shadow:0 10px 30px rgba(59,130,246,.35);
}
.btn--primary:hover{transform:translateY(-1px);box-shadow:0 14px 36px rgba(59,130,246,.5)}
.btn--ghost{
  background:rgba(255,255,255,.06);color:#fff;
  border:1px solid rgba(255,255,255,.18);
}
.btn--ghost:hover{background:rgba(255,255,255,.12)}

/* ============ Hero ============ */
.hero{
  position:relative;
  background:radial-gradient(1200px 600px at 80% -10%, rgba(124,92,255,.35), transparent 60%),
             radial-gradient(900px 500px at 0% 10%, rgba(34,211,238,.18), transparent 60%),
             var(--bg);
  color:#fff;
  overflow:hidden;
}
.hero__bg{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at 50% 30%, #000 40%, transparent 75%);
}
.hero__inner{position:relative;padding:96px 24px 120px;text-align:center}
.eyebrow{
  display:inline-block;
  font-size:12px;letter-spacing:.25em;text-transform:uppercase;
  color:#a8b2c5;
  padding:6px 14px;border:1px solid var(--line);border-radius:999px;
  background:rgba(255,255,255,.03);
}
.hero h1{
  font-size:clamp(38px, 6vw, 68px);
  line-height:1.1;font-weight:800;letter-spacing:-.02em;
  margin:24px auto 18px;max-width:18ch;
}
.grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{
  color:#b8c0cf;max-width:62ch;margin:0 auto;
  font-size:18px;
}
.hero__cta{display:flex;gap:14px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.hero__stats{
  display:flex;gap:48px;justify-content:center;margin-top:64px;flex-wrap:wrap;
  color:#cfd6e4;
}
.hero__stats b{display:block;font-size:30px;color:#fff;font-weight:800}
.hero__stats span{font-size:13px;color:#8893a8;letter-spacing:.05em}

/* ============ Section base ============ */
.section{padding:96px 0}
.section__head{text-align:center;max-width:720px;margin:0 auto 56px}
.section__head h2{
  font-size:clamp(28px,3.4vw,40px);
  font-weight:800;letter-spacing:-.01em;margin:14px 0 12px;
}
.section__sub{color:var(--muted);font-size:16px}
.section--dark{background:var(--bg);color:#fff}
.section--dark .section__sub{color:#9aa3b6}
.section--soft{background:var(--bg-soft)}
.section--cta{
  background:
    radial-gradient(800px 400px at 80% 0%, rgba(124,92,255,.25), transparent 60%),
    radial-gradient(800px 400px at 0% 100%, rgba(34,211,238,.18), transparent 60%),
    var(--bg);
  color:#fff;
}

/* ============ Cards (3-up) ============ */
.cards-3{
  display:grid;gap:24px;
  grid-template-columns:1fr 1.15fr 1fr;
  align-items:stretch;
}
.card{
  position:relative;
  background:#fff;border:1px solid var(--line-dark);
  border-radius:var(--radius-lg);
  padding:36px 32px;
  box-shadow:var(--shadow);
  transition:transform .2s, box-shadow .2s, border-color .2s;
  overflow:hidden;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:0 30px 70px rgba(8,15,40,.16)}
.card__icon{
  width:52px;height:52px;border-radius:14px;
  display:grid;place-items:center;font-size:24px;
  margin-bottom:18px;
  color:#fff;
}
.card h3{margin:0 0 10px;font-size:20px;font-weight:700}
.card p{color:var(--muted);margin:0 0 18px}

/* 左卡：冷调青蓝 */
.card--cool{
  background:linear-gradient(180deg, #fbfdff 0%, #eef4ff 100%);
  border-color:rgba(59,130,246,.18);
}
.card--cool .card__icon{background:linear-gradient(135deg,#3b82f6,#22d3ee);box-shadow:0 8px 22px rgba(59,130,246,.28)}

/* 右卡：暖调粉紫 */
.card--warm{
  background:linear-gradient(180deg, #fdfbff 0%, #f4eeff 100%);
  border-color:rgba(124,92,255,.2);
}
.card--warm .card__icon{background:linear-gradient(135deg,#a855f7,#7c5cff);box-shadow:0 8px 22px rgba(124,92,255,.28)}

/* 中间 C 位：同为浅色，靠 “更高 + 渐变光晕 + 渐变边框 + 标签” 拉开层次 */
.card--featured{
  background:linear-gradient(180deg, #ffffff 0%, #f6f3ff 100%);
  border:1px solid transparent;
  box-shadow:0 30px 70px rgba(124,92,255,.22);
  transform:translateY(-12px);
  padding:44px 32px 36px;
  z-index:2;
}
/* 顶部渐变彩条 */
.card--featured::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;
  background:var(--grad);
  z-index:3;
}
/* 渐变边框（外层发光） */
.card--featured::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  padding:1px;
  background:linear-gradient(180deg, rgba(124,92,255,.55), rgba(34,211,238,.25) 50%, rgba(124,92,255,.15));
  -webkit-mask:linear-gradient(#000,#000) content-box, linear-gradient(#000,#000);
  -webkit-mask-composite:xor; mask-composite:exclude;
}
.card--featured .card__icon{
  width:60px;height:60px;font-size:28px;
  background:var(--grad);color:#fff;
  box-shadow:0 14px 32px rgba(124,92,255,.45);
}
.card--featured h3{font-size:22px}

/* 中卡周围柔和光晕（不起事件拦截） */
.card--featured-glow{position:relative}
.card--featured-glow::before{
  content:"";position:absolute;inset:-30px;border-radius:30px;pointer-events:none;
  background:radial-gradient(60% 60% at 50% 0%, rgba(124,92,255,.18), transparent 70%);
  z-index:0;
}

.card__badge{
  position:absolute;top:18px;right:18px;
  font-size:11px;letter-spacing:.15em;
  padding:5px 10px;border-radius:999px;
  background:linear-gradient(135deg, rgba(124,92,255,.14), rgba(34,211,238,.14));
  color:#5b4bd6;font-weight:700;
  border:1px solid rgba(124,92,255,.3);
  z-index:3;
}

/* 兼容旧 .card--accent */
.card--accent{
  background:#fff;color:inherit;border:1px solid var(--line-dark);
}
.card--accent p{color:var(--muted)}
.card--accent .card__icon{background:linear-gradient(135deg,#eef2ff,#e0f2fe);color:inherit}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:8px;font-size:14px}
.ticks li{position:relative;padding-left:22px;color:inherit}
.ticks li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:50%;
  background:var(--grad);
  box-shadow:inset 0 0 0 3px #fff;
}

/* ============ Capabilities (2x2) ============ */
.grid-2{
  display:grid;gap:20px;
  grid-template-columns:repeat(2,1fr);
}
.feature{
  background:linear-gradient(180deg, rgba(255,255,255,.04) 0%, rgba(255,255,255,.02) 100%);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px;
  position:relative;overflow:hidden;
}
.feature::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;
  background:linear-gradient(135deg, rgba(124,92,255,.4), transparent 40%);
  -webkit-mask:linear-gradient(#000,#000) content-box, linear-gradient(#000,#000);
  -webkit-mask-composite:xor; mask-composite:exclude;
  padding:1px;opacity:.6;
}
.feature__num{
  font-family:'Inter',monospace;color:var(--accent);
  font-size:13px;letter-spacing:.2em;margin-bottom:12px;
}
.feature h3{margin:0 0 10px;font-size:22px;font-weight:700}
.feature p{color:#aab3c5;margin:0 0 18px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips span{
  font-size:12px;color:#cfd6e4;
  padding:6px 12px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
}

/* ============ Workflow steps ============ */
.steps{
  list-style:none;padding:0;margin:0;
  display:grid;gap:20px;grid-template-columns:repeat(3,1fr);counter-reset:s;
}
.steps li{
  background:#fff;border:1px solid var(--line-dark);
  border-radius:var(--radius-lg);padding:32px;
  position:relative;box-shadow:var(--shadow);
}
.steps__num{
  display:inline-grid;place-items:center;
  width:40px;height:40px;border-radius:12px;
  background:var(--grad);color:#fff;font-weight:800;
  margin-bottom:16px;
  box-shadow:0 8px 24px rgba(124,92,255,.35);
}
.steps h3{margin:0 0 8px;font-size:18px;font-weight:700}
.steps p{color:var(--muted);margin:0;font-size:15px}

/* ============ Scenarios ============ */
.cards-4{
  display:grid;gap:18px;grid-template-columns:repeat(4,1fr);
}
.mini{
  background:#fff;border:1px solid var(--line-dark);
  border-radius:var(--radius);
  padding:24px;
  transition:transform .2s, box-shadow .2s;
}
.mini:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.mini h4{margin:0 0 8px;font-size:16px;font-weight:700}
.mini p{margin:0;color:var(--muted);font-size:14px}

/* ============ Trust strip ============ */
.trust{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:48px;
  border-radius:var(--radius-lg);
  background:linear-gradient(135deg,#0f131c, #141a26);
  color:#fff;text-align:center;
  box-shadow:var(--shadow);
}
.trust__num b{display:block;font-size:36px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.trust__num span{color:#9aa3b6;font-size:13px;letter-spacing:.05em}

/* ============ CTA ============ */
.cta{text-align:center}
.cta h2{font-size:clamp(28px,3.4vw,40px);font-weight:800;margin:0 0 12px}
.cta p{color:#b8c0cf;max-width:60ch;margin:0 auto 28px}
.cta__form{
  display:flex;gap:10px;flex-wrap:wrap;justify-content:center;
  max-width:680px;margin:0 auto;
}
.cta__form input{
  flex:1 1 220px;min-width:200px;
  background:rgba(255,255,255,.08);border:1px solid var(--line);
  color:#fff;padding:14px 18px;border-radius:999px;
  font:inherit;outline:none;transition:border .2s, background .2s;
}
.cta__form input::placeholder{color:#8893a8}
.cta__form input:focus{border-color:var(--accent);background:rgba(255,255,255,.12)}
.cta__done{
  display:none;
  width:100%;color:#22d3ee;margin-top:18px;font-size:14px;
  text-align:center;
}
.cta__done.show{display:block;animation:fadein .35s ease both}
@keyframes fadein{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* Contact block in CTA */
.contact{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:center;
  margin:8px auto 28px;max-width:680px;
}
.contact__item{
  display:flex;align-items:center;gap:14px;
  padding:14px 22px;border-radius:16px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  color:#fff;
  transition:transform .15s ease, background .2s, border-color .2s;
  min-width:240px;
}
.contact__item:hover{transform:translateY(-2px);background:rgba(255,255,255,.1);border-color:rgba(124,92,255,.45)}
.contact__icon{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;font-size:20px;
  background:var(--grad);
  box-shadow:0 8px 22px rgba(124,92,255,.35);
}
.contact__item em{display:block;font-style:normal;font-size:11px;letter-spacing:.18em;color:#8893a8;text-transform:uppercase}
.contact__item strong{display:block;font-size:18px;font-weight:700;letter-spacing:.02em;color:#fff;margin-top:2px}

/* 微信二维码卡 */
.contact__item--qr{cursor:pointer}
.contact__qr{
  width:140px;height:140px;margin-left:8px;
  border-radius:12px;overflow:hidden;
  background:#fff;
  padding:8px;
  box-shadow:0 8px 22px rgba(0,0,0,.25);
  flex-shrink:0;
}
.contact__qr img{width:100%;height:100%;object-fit:contain;display:block}
.contact__qr--placeholder{
  position:relative;
  background:
    repeating-linear-gradient(45deg, #f3f4f6 0 6px, #e5e7eb 6px 12px);
}
.contact__qr--placeholder::after{
  content:"二维码占位";
  position:absolute;inset:0;display:grid;place-items:center;
  font-size:12px;color:#9ca3af;font-weight:600;
  background:rgba(255,255,255,.85);
  border-radius:8px;
}

.cta__divider{
  display:flex;align-items:center;gap:14px;
  max-width:680px;margin:0 auto 18px;
  color:#8893a8;font-size:12px;letter-spacing:.1em;
}
.cta__divider::before,.cta__divider::after{
  content:"";flex:1;height:1px;background:linear-gradient(90deg, transparent, rgba(255,255,255,.18), transparent);
}

/* ============ Footer ============ */
.footer{background:#06080d;color:#aab3c5}
.footer__inner{display:grid;grid-template-columns:1.2fr 2fr;gap:48px;padding:64px 24px}
.footer__brand p{margin-top:14px;color:#7d8699;max-width:36ch}
.footer__cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.footer__cols h5{color:#fff;font-size:14px;margin:0 0 14px;letter-spacing:.08em;text-transform:uppercase}
.footer__cols a{display:block;padding:6px 0;font-size:14px;color:#aab3c5;transition:color .2s}
.footer__cols a:hover{color:#fff}
.footer__bar{border-top:1px solid var(--line);padding:18px 0;font-size:13px;color:#5b6577}

/* ============ Platform deep dive ============ */
.platform-grid{
  display:grid;gap:16px;
  grid-template-columns:repeat(4,1fr);
}
.pcard{
  position:relative;
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.015));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 22px 20px;
  overflow:hidden;
  transition:transform .2s, border-color .2s;
}
.pcard:hover{transform:translateY(-3px);border-color:rgba(124,92,255,.45)}
.pcard__no{
  font-family:'Inter',monospace;color:var(--accent);
  font-size:12px;letter-spacing:.2em;
}
.pcard h4{margin:8px 0 6px;font-size:16px;font-weight:700;color:#fff}
.pcard p{margin:0;color:#9aa3b6;font-size:13.5px;line-height:1.55}

.engineer-bar{
  display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;
  margin-top:36px;padding:18px 24px;
  border:1px dashed rgba(124,92,255,.4);
  border-radius:999px;
  color:#cfd6e4;font-size:14px;
  background:rgba(124,92,255,.06);
}
.engineer-bar span{color:#8893a8;letter-spacing:.1em;font-size:12px;text-transform:uppercase}
.engineer-bar em{
  font-style:normal;font-weight:600;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:.02em;
}

/* ============ Hero viz ============ */
.hero__viz{
  margin:56px auto 0;max-width:900px;
  filter:drop-shadow(0 10px 60px rgba(124,92,255,.25));
}
.hero__viz svg{width:100%;height:auto}

/* ============ Belief band ============ */
.belief{
  background:#fff;
  border-bottom:1px solid var(--line-dark);
}
.belief__inner{padding:48px 24px;text-align:center}
.belief p{
  margin:14px 0 0;
  font-size:clamp(16px,2vw,20px);
  color:var(--ink-2);
  display:flex;flex-wrap:wrap;justify-content:center;gap:6px 24px;
}
.belief p span{display:inline-flex;align-items:center;gap:6px}
.belief em{
  font-style:normal;font-weight:700;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ============ Architecture diagram ============ */
.arch{
  margin:48px auto 0;max-width:980px;
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;
  background:linear-gradient(180deg, rgba(124,92,255,.06), rgba(34,211,238,.04));
  display:grid;gap:14px;
}
.arch__row{display:grid;gap:10px}
.arch__row--top{grid-template-columns:repeat(4,1fr)}
.arch__row--bot{grid-template-columns:repeat(5,1fr)}
.arch__pill{
  text-align:center;font-size:13px;color:#cfd6e4;
  padding:12px 10px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
}
.arch__bus{
  text-align:center;font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:#9aa3b6;
  padding:8px;border-radius:10px;
  background:rgba(255,255,255,.03);border:1px dashed var(--line);
}
.arch__bus--alt{color:#22d3ee;border-color:rgba(34,211,238,.35)}
.arch__core{
  border-radius:14px;padding:18px;
  background:linear-gradient(135deg, rgba(124,92,255,.18), rgba(59,130,246,.12) 60%, rgba(34,211,238,.14));
  border:1px solid rgba(124,92,255,.35);
  text-align:center;
}
.arch__core-title{color:#fff;font-weight:700;font-size:15px;margin-bottom:12px}
.arch__agents{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}
.arch__agents span{
  font-size:12.5px;color:#fff;
  padding:6px 12px;border-radius:999px;
  background:rgba(0,0,0,.25);border:1px solid rgba(255,255,255,.12);
}

/* ============ Reveal animation ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease, transform .7s ease;will-change:opacity,transform}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
}

/* ============ Gallery / Activities ============ */
.gallery{
  display:grid;gap:16px;
  grid-template-columns:repeat(6,1fr);
  grid-auto-rows:200px;
}
.gallery__item{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  background:#0f131c;
  display:block;color:#fff;
  box-shadow:var(--shadow);
  transition:transform .25s ease, box-shadow .25s ease;
  grid-column:span 2;
}
.gallery__item--lg{grid-column:span 4;grid-row:span 2}
.gallery__item:hover{transform:translateY(-4px);box-shadow:0 30px 70px rgba(8,15,40,.18)}
.gallery__img{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  transition:transform .6s ease;
}
.gallery__item:hover .gallery__img{transform:scale(1.06)}
.gallery__item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, transparent 30%, rgba(0,0,0,.7) 100%);
  pointer-events:none;
}
.gallery__cap{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
}
.gallery__cap h4{margin:6px 0 4px;font-size:18px;font-weight:700;color:#fff}
.gallery__cap p{margin:0;font-size:13px;color:#cfd6e4}
.gallery__tag{
  display:inline-block;
  font-size:10.5px;letter-spacing:.18em;font-weight:700;
  padding:4px 10px;border-radius:999px;
  background:rgba(255,255,255,.14);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.22);
}
.gallery__hint{
  text-align:center;color:var(--muted);font-size:13px;margin-top:24px;
}
.gallery__hint code{
  background:rgba(15,20,30,.06);padding:2px 8px;border-radius:6px;font-size:12px;
}

/* 占位图：不同调调的渐变 + 几何装饰 */
.gimg-1{background:url('gallery/keynote.jpg') center/cover;

 /* radial-gradient(800px 400px at 30% 20%, rgba(124,92,255,.45), transparent 60%),
  radial-gradient(600px 400px at 80% 80%, rgba(34,211,238,.35), transparent 60%),
  linear-gradient(135deg,#1a1240 0%, #0a1733 60%, #06223a 100%);*/}
.gimg-2{background:url('gallery/workshop.jpg') center/cover;
  /*radial-gradient(500px 300px at 80% 30%, rgba(255,180,120,.35), transparent 60%),
  linear-gradient(135deg,#2a1a40 0%, #3a1f5e 100%);*/}
.gimg-3{background:url('gallery/global.jpg') center/cover;
 /* radial-gradient(500px 300px at 30% 30%, rgba(80,200,255,.45), transparent 60%),
  linear-gradient(135deg,#0a2540 0%, #103a5c 100%);*/}
.gimg-4{background:url('gallery/demo.png') center/cover;
  /*radial-gradient(500px 300px at 60% 60%, rgba(168,85,247,.4), transparent 60%),
  linear-gradient(135deg,#1a0f2e 0%, #311a52 100%);*/}
.gimg-5{background:url('gallery/community.jpg') center/cover;
  /*radial-gradient(500px 300px at 50% 30%, rgba(34,211,238,.4), transparent 60%),
  linear-gradient(135deg,#0a1f1a 0%, #0e3a36 100%);*/}

/* 如果你放了真图，可以用 inline style：
   <div class="gallery__img" style="background-image:url('assets/gallery/keynote.jpg')"></div> */

/* ============ Partners / strategic ============ */
.partners{
  display:grid;gap:14px;
  grid-template-columns:repeat(6,1fr);
}
.partner{
  height:88px;border-radius:14px;
  background:#fff;
  border:1px solid var(--line-dark);
  display:grid;place-items:center;
  color:var(--ink-2);
  font-weight:700;font-size:14px;
  letter-spacing:.02em;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s, filter .25s;
  position:relative;overflow:hidden;
  padding:18px 22px;
  text-decoration:none;
}
.partner img{
  max-height:42px;max-width:140px;width:auto;height:auto;
  object-fit:contain;
  filter:grayscale(100%) opacity(.75);
  transition:filter .25s ease, transform .25s ease;
}
.partner span{
  background:linear-gradient(135deg, #1a2233 0%, #4b5670 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  text-align:center;line-height:1.2;
}
.partner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg, rgba(124,92,255,.06), rgba(34,211,238,.04));
  opacity:0;transition:opacity .25s;
}
.partner:hover{
  transform:translateY(-3px);
  box-shadow:0 18px 40px rgba(8,15,40,.1);
  border-color:rgba(124,92,255,.35);
}
.partner:hover::before{opacity:1}
.partner:hover img{filter:grayscale(0%) opacity(1)}
.partners__hint{
  text-align:center;color:var(--muted);font-size:13px;margin-top:24px;
}
.partners__hint code{
  background:rgba(15,20,30,.06);padding:2px 8px;border-radius:6px;font-size:12px;
}

/* ============ Responsive ============ */
@media (max-width: 960px){
  .nav__links{display:none}
  .cards-3{grid-template-columns:1fr 1fr}
  .grid-2,.steps,.cards-4,.trust,.platform-grid{grid-template-columns:1fr 1fr}
  .card--featured{transform:none}
  .footer__inner{grid-template-columns:1fr;gap:28px}
  .arch__row--top,.arch__row--bot{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:180px}
  .gallery__item,.gallery__item--lg{grid-column:span 1;grid-row:auto}
  .gallery__item--lg{grid-column:span 2}
  .partners{grid-template-columns:repeat(3,1fr)}
}
@media (max-width: 600px){
  .section{padding:72px 0}
  .hero__inner{padding:72px 20px 88px}
  .hero__stats{gap:24px}
  .cards-3,.grid-2,.steps,.cards-4,.trust,.platform-grid{grid-template-columns:1fr}
  .footer__cols{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:1fr}
  .gallery__item,.gallery__item--lg{grid-column:span 1}
  .partners{grid-template-columns:repeat(2,1fr)}
}