/* ===== 朕天智能 · FURLEADER ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap');

:root {
  /* FURLEADER dark */
  --fbg: #0A0A0F;
  --fbg2: #111118;
  --fp: #7C3AED;
  --fr: #FF2D55;
  --fl: #8B5CF6;
  --ft: #E2E8F0;
  --ftm: #94A3B8;
  --fcard: rgba(17, 17, 24, 0.85);
  --fbor: rgba(124,58,237,0.12);

  /* 朕天 light */
  --zbg: #F8F5F0;
  --zbg2: #EDE8DF;
  --zb: #2563EB;
  --zbh: #1D4ED8;
  --zt: #1A1A2E;
  --ztm: #64748B;
  --zcard: #FFFFFF;
  --zbor: rgba(37,99,235,0.06);

  --mw: 1200px;
  --nav: 68px;
  --r: 12px;
  --e: .3s cubic-bezier(.4,0,.2,1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans SC', -apple-system, sans-serif; overflow-x: hidden; }

/* ===== NAV ===== */
.navbar {
  position: fixed; top: 0; width: 100%; z-index: 1000; height: var(--nav);
  background: rgba(10,10,15,.92); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--fbor);
  transition: var(--e);
}
.navbar.light { background: rgba(248,245,240,.95); border-color: var(--zbor); }
.navbar.light .nav-link { color: var(--ztm); }
.navbar.light .nav-link:hover, .navbar.light .nav-link.active { color: var(--zb); }
.nav-inner {
  max-width: var(--mw); margin: auto; height: 100%; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; gap: 12px; }
/* Logo switching: dark mode (default) shows white logos, light mode shows black */
.nav-logo { height: 26px; transition: opacity 0.3s ease; }
.nav-logo-zt-dark { height: 22px; }
.nav-logo-zt-light { height: 22px; }
.navbar.light .nav-logo-dark { opacity: 0; position: absolute; pointer-events: none; }
.navbar:not(.light) .nav-logo-light { opacity: 0; position: absolute; pointer-events: none; }
.navbar.light .nav-logo-zt-dark { opacity: 0; position: absolute; pointer-events: none; }
.navbar:not(.light) .nav-logo-zt-light { opacity: 0; position: absolute; pointer-events: none; }
.nav-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--fp); }
.nav-links { display: flex; gap: 28px; }
.nav-link {
  color: var(--ftm); text-decoration: none; font-size: 14px; font-weight: 500;
  transition: var(--e); position: relative;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -4px; left: 50%; width: 0; height: 2px;
  background: var(--fp); transition: var(--e); transform: translateX(-50%);
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.navbar.light .nav-link::after { background: var(--zb); }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px; background: none;
  border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ft); border-radius: 2px; transition: var(--e); }

/* ===== BASE ===== */
.sec { padding: 100px 24px; position: relative; }
.inner { max-width: var(--mw); margin: auto; }
.sec-title {
  font-size: 34px; font-weight: 800; text-align: center; margin-bottom: 10px;
  background: linear-gradient(135deg, var(--fp), var(--fr));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.sec-title.dark { color: var(--zt); -webkit-text-fill-color: var(--zt); background: none; }
.sec-desc { text-align: center; color: var(--ftm); font-size: 15px; margin-bottom: 44px; }
.sec-desc.dark { color: var(--ztm); }

/* ===== FUR (DARK) ===== */
.fur { background: var(--fbg); color: var(--ft); }

/* HERO */
.hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; overflow: hidden; }
.geo-bg {
  position: absolute; inset: 0; overflow: hidden; z-index: 0; opacity: .35;
  --c1: rgba(124,58,237,.12); --c2: rgba(255,45,85,.08);
}
.geo-bg::before {
  content: ''; position: absolute; width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(circle, var(--c1) 0%, transparent 70%);
  top: -250px; right: -200px; animation: drf 10s ease-in-out infinite;
}
.geo-bg::after {
  content: ''; position: absolute; width: 500px; height: 500px; border-radius: 50%;
  background: radial-gradient(circle, var(--c2) 0%, transparent 70%);
  bottom: -150px; left: -150px; animation: drf 12s ease-in-out infinite alternate;
}
@keyframes drf { 0%,100%{transform:translate(0,0)} 50%{transform:translate(40px,-40px)} }

.hero-c { position: relative; z-index: 1; max-width: 800px; }
.hero-logo { height: 60px; margin-bottom: 36px; opacity: 0; transform: translateY(16px); animation: fup .8s ease forwards .2s; }
.hero-t { font-size: clamp(40px,6.5vw,72px); font-weight: 800; margin-bottom: 24px; opacity: 0; animation: fup .8s ease forwards .4s; }
.grad { background: linear-gradient(135deg,#fff 20%,var(--fp) 60%,var(--fr) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-s { font-size: clamp(17px,2.2vw,24px); color: var(--ftm); margin-bottom: 48px; opacity: 0; animation: fup .8s ease forwards .6s; }
.hero-a { display: flex; gap: 16px; justify-content: center; opacity: 0; animation: fup .8s ease forwards .8s; }
@keyframes fup { to{opacity:1;transform:translateY(0)} }

.scroll-hint { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 6px; color: var(--ftm); font-size: 12px; opacity: .5; animation: bd 2s ease infinite; }
.arrow { width: 16px; height: 16px; border-right: 2px solid var(--ftm); border-bottom: 2px solid var(--ftm); transform: rotate(45deg); }
@keyframes bd { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(8px)} }
.scroll-a { width: 16px; height: 16px; border-right: 2px solid var(--ftm); border-bottom: 2px solid var(--ftm); transform: rotate(45deg); }
.btn.small { padding: 10px 20px; font-size: 13px; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 30px; border-radius: 100px; font-size: 15px; font-weight: 600; text-decoration: none; transition: var(--e); border: none; cursor: pointer; }
.btn.primary { background: linear-gradient(135deg,var(--fp),#6D28D9); color: #fff; box-shadow: 0 4px 20px rgba(124,58,237,.3); }
.btn.primary:hover { transform: translateY(-2px); box-shadow: 0 6px 30px rgba(124,58,237,.4); }
.btn.ghost, .btn.outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.2); }
.btn.ghost:hover, .btn.outline:hover { border-color: var(--fp); background: rgba(124,58,237,.1); }
.btn.zt-btn { background: var(--zb); color: #fff; box-shadow: 0 4px 20px rgba(37,99,235,.3); }
.btn.zt-btn:hover { background: var(--zbh); transform: translateY(-2px); }

/* CARDS 3-COL */
.cards-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.card {
  background: var(--fcard); border: 1px solid var(--fbor); border-radius: var(--r);
  padding: 36px 28px; transition: var(--e); position: relative; overflow: hidden;
}
.card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg,var(--fp),var(--fr)); opacity: 0; transition: var(--e); }
.card:hover { transform: translateY(-4px); border-color: rgba(124,58,237,.25); }
.card:hover::before { opacity: 1; }
.card-badge { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--fp); margin-bottom: 16px; }
.card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--ftm); line-height: 1.7; margin-bottom: 16px; }
.card ul { list-style: none; }
.card li { font-size: 13px; color: var(--ftm); padding: 5px 0 5px 18px; position: relative; }
.card li::before { content: '▸'; position: absolute; left: 0; color: var(--fp); }
.card-icon { margin-bottom: 16px; }
.card-icon svg { width: 36px; height: 36px; display: block; }

/* STATS */
.stats { padding: 70px 24px; }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; text-align: center; }
.stat .num { display: block; font-size: 44px; font-weight: 800; background: linear-gradient(135deg,var(--fp),var(--fr)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.2; }
.stat .lbl { font-size: 14px; color: var(--ftm); }

/* ===== KNOWLEDGE BASE ===== */
.tab-nav { display: flex; gap: 0; margin-bottom: 40px; border-radius: var(--r); overflow: hidden; border: 1px solid var(--fbor); width: fit-content; margin-left: auto; margin-right: auto; }
.tab-btn { padding: 12px 28px; background: transparent; border: none; color: var(--ftm); font-size: 14px; font-weight: 500; cursor: pointer; transition: var(--e); }
.tab-btn:hover { color: #fff; }
.tab-btn.active { background: rgba(124,58,237,.2); color: var(--fp); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Roadmap */
.rm-level { margin-bottom: 40px; }
.rm-level h3 { font-size: 18px; font-weight: 700; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 1px solid var(--fbor); }
.rm-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.rm-card {
  background: var(--fcard); border: 1px solid var(--fbor); border-radius: var(--r);
  padding: 24px; transition: var(--e);
}
.rm-card:hover { transform: translateY(-2px); border-color: rgba(124,58,237,.2); }
.rm-card h4 { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
.rm-card p { font-size: 13px; color: var(--ftm); line-height: 1.7; margin-bottom: 12px; }
.rm-tag { font-size: 11px; padding: 2px 10px; border-radius: 10px; background: rgba(124,58,237,.15); color: var(--fl); }

/* Papers */
.papers-list { display: flex; flex-direction: column; gap: 16px; }
.paper {
  background: var(--fcard); border: 1px solid var(--fbor); border-radius: var(--r);
  padding: 28px; transition: var(--e);
}
.paper:hover { border-color: rgba(124,58,237,.2); }
.paper-meta { display: flex; gap: 10px; align-items: center; margin-bottom: 8px; }
.paper-year { font-weight: 700; color: var(--fp); font-size: 13px; }
.paper-tag { font-size: 11px; padding: 2px 10px; border-radius: 10px; background: rgba(255,45,85,.12); color: var(--fr); }
.paper h3 { font-size: 17px; font-weight: 600; }
.paper-authors { font-size: 13px; color: var(--ftm); margin: 4px 0 10px; }
.paper-desc { font-size: 14px; color: var(--ft); line-height: 1.7; margin-bottom: 10px; }
.paper-key { font-size: 13px; color: var(--fl); line-height: 1.6; padding: 10px 14px; background: rgba(139,92,246,.08); border-radius: var(--r); }
.papers-note { text-align: center; color: var(--ftm); font-size: 13px; margin-top: 24px; }

/* ===== TRANSITION ===== */
.tz { height: 100px; background: linear-gradient(180deg,var(--fbg) 0%,var(--zbg) 100%); }

/* ── Footer ── */
.footer { background: var(--fbg); color: var(--ftm); padding: 48px 24px 24px; font-size: 13px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; padding-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,.06); }
.footer-brand p { font-size: 12px; }
.footer-disclaimers { text-align: right; line-height: 1.8; }
.footer-bottom { text-align: center; padding-top: 24px; }

/* ── Timeline ── */
.tl-dot { position: absolute; left: 12px; top: 4px; width: 18px; height: 18px; border-radius: 50%; background: var(--zb); border: 3px solid var(--zbg); box-shadow: 0 0 0 3px var(--zb); }

/* ── Contact ── */
.price-box h3, .cta-box h3 { font-size: 24px; font-weight: 700; margin-bottom: 16px; color: var(--zt); }

/* FIX: old .arrow -> just keep both */
.arrow, .scroll-a { width: 16px; height: 16px; border-right: 2px solid var(--ftm); border-bottom: 2px solid var(--ftm); transform: rotate(45deg); }

/* ===== 朕天 (LIGHT) ===== */
.zt { background: var(--zbg); color: var(--zt); }

/* ABOUT */
.ab-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.ab-logo { height: 30px; margin-bottom: 20px; }
.ab-title { font-size: 34px; font-weight: 800; line-height: 1.3; margin-bottom: 12px; }
.ab-sub { font-size: 15px; color: var(--ztm); margin-bottom: 16px; }
.ab-body { font-size: 15px; color: var(--ztm); line-height: 1.8; margin-bottom: 28px; }
.ab-img { text-align: center; }
.ab-photo { width: 100%; max-width: 380px; border-radius: var(--r); box-shadow: 0 8px 40px rgba(0,0,0,.06); }

/* TIMELINE */
.tl { max-width: 600px; margin: 0 auto; position: relative; padding: 16px 0; }
.tl::before { content: ''; position: absolute; left: 20px; top: 0; bottom: 0; width: 2px; background: var(--zb); opacity: .2; }
.tl-item { position: relative; padding-left: 56px; margin-bottom: 44px; opacity: 0; transform: translateX(-16px); transition: .6s ease; }
.tl-item.in { opacity: 1; transform: translateX(0); }
.tl-mark { position: absolute; left: 12px; top: 4px; width: 18px; height: 18px; border-radius: 50%; background: var(--zb); border: 3px solid var(--zbg); box-shadow: 0 0 0 3px var(--zb); }
.tl-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.tl-body p { font-size: 14px; color: var(--ztm); line-height: 1.7; }

/* SERVICES */
.svc-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.svc-card { background: var(--zcard); border-radius: var(--r); padding: 28px; border: 1px solid var(--zbor); transition: var(--e); }
.svc-card:hover { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(0,0,0,.04); }
.svc-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.svc-card p { font-size: 14px; color: var(--ztm); line-height: 1.7; }

/* CONTACT */
.ct-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 40px; }
.ct-pricing h3, .ct-info h3 { font-size: 22px; font-weight: 700; margin-bottom: 20px; }
.price-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.price-card { background: var(--zcard); border-radius: var(--r); padding: 24px 18px; border: 1px solid var(--zbor); text-align: center; transition: var(--e); }
.price-card.feat { border-color: var(--zb); box-shadow: 0 4px 16px rgba(37,99,235,.08); }
.price-card:hover { transform: translateY(-2px); }
.price-card h4 { font-size: 13px; color: var(--ztm); margin-bottom: 8px; }
.price-amt { font-size: 26px; font-weight: 800; color: var(--zb); margin-bottom: 14px; }
.price-amt .unit { font-size: 13px; font-weight: 400; color: var(--ztm); }
.price-card ul { list-style: none; font-size: 13px; }
.price-card li { padding: 5px 0; color: var(--ztm); }
.price-card li::before { content: '✓ '; color: var(--zb); }

.ct-info ul { list-style: none; margin-bottom: 20px; }
.ct-info li { font-size: 14px; padding: 7px 0; color: var(--ztm); }
.ct-info li strong { color: var(--zt); }
.qr-box { margin-top: 4px; }
.qr-label { font-size: 13px; color: var(--ztm); margin-bottom: 8px; }
.qr-placeholder { width: 130px; height: 130px; background: var(--zbg2); border-radius: var(--r); display: flex; align-items: center; justify-content: center; font-size: 12px; color: var(--ztm); }

/* FOOTER */
.ft { background: var(--fbg); color: var(--ftm); padding: 40px 24px 20px; font-size: 13px; }
.ft-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 20px; border-bottom: 1px solid rgba(255,255,255,.06); }
.ft-logo { height: 18px; margin-bottom: 6px; }
.ft-brand p { font-size: 12px; }
.ft-legal { text-align: right; line-height: 1.8; }
.ft-bot { text-align: center; padding-top: 16px; }
.ft-bot a { color: var(--ftm); text-decoration: none; }
.ft-bot a:hover { color: #fff; }

/* ── Stats ── */
.stats { padding: 60px 24px; }
.stats-g { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat { padding: 24px; }
.stat-n { display: block; font-size: 48px; font-weight: 800; background: linear-gradient(135deg, var(--fp), var(--fr)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1.2; }
.stat-l { font-size: 14px; color: var(--ft); margin-top: 4px; }

/* ── Case Cards ── */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card { background: var(--fc); border: 1px solid rgba(124,58,237,0.08); border-radius: 16px; padding: 32px; transition: .3s; }
.case-card:hover { transform: translateY(-3px); border-color: rgba(124,58,237,0.2); box-shadow: 0 8px 32px rgba(0,0,0,0.15); }
.case-icon { font-size: 32px; margin-bottom: 12px; }
.case-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.case-card p { font-size: 13px; color: var(--ft); line-height: 1.7; margin-bottom: 16px; }
.case-tag { display: inline-block; padding: 3px 12px; border-radius: 10px; font-size: 11px; font-weight: 600; background: rgba(124,58,237,0.12); color: var(--fp); }

/* ── Knowledge Teaser ── */
.know-teaser { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.know-item { background: var(--fc); border: 1px solid rgba(124,58,237,0.08); border-radius: 16px; padding: 28px; display: flex; gap: 16px; align-items: flex-start; transition: .3s; }
.know-item:hover { border-color: rgba(124,58,237,0.25); }
.know-icon { font-size: 28px; flex-shrink: 0; margin-top: 2px; }
.know-item h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.know-item p { font-size: 13px; color: var(--ft); line-height: 1.5; }

/* ── Blog Teaser ── */
.blog-teaser { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.blog-item { background: var(--fc); border: 1px solid rgba(124,58,237,0.08); border-radius: 16px; padding: 28px; transition: .3s; display: flex; flex-direction: column; }
.blog-item:hover { transform: translateY(-3px); border-color: rgba(124,58,237,0.2); }
.blog-date { font-size: 11px; color: var(--fp); font-weight: 600; margin-bottom: 8px; }
.blog-item h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.blog-item p { font-size: 13px; color: var(--ft); line-height: 1.6; margin-bottom: 16px; flex:1; }
.blog-item a { font-size: 13px; color: var(--fp); font-weight: 600; text-decoration: none; }
.blog-item a:hover { text-decoration: underline; }

/* ── Card Badge (pricing on products) ── */
.card { position: relative; }
.card-badge {
  position: absolute; top: 12px; right: 12px;
  padding: 2px 8px; border-radius: 12px;
  font-size: 10px; font-weight: 700; letter-spacing: 0.5px;
  background: rgba(124,58,237,0.12); color: var(--fp);
  border: 1px solid rgba(124,58,237,0.15);
}
.card.card-feat .card-badge { background: rgba(255,45,85,0.12); color: var(--fr); border-color: rgba(255,45,85,0.2); }

/* ── SVG Icon Animations ── */
/* 线框绘制：从无到有，线条画出 */
.s-draw, .s-slide, .s-draw-h {
  stroke-dasharray: var(--len, 40);
  stroke-dashoffset: var(--len, 40);
  animation: s-stroke 0.6s cubic-bezier(0.4,0,0.2,1) forwards;
  animation-delay: calc(0.2s + 0.08s * var(--dir, 0));
}
.s-slide { animation-name: s-slide-key; }
.s-draw-h { animation-name: s-draw-h-key; }

@keyframes s-stroke { to { stroke-dashoffset: 0; } }
@keyframes s-slide-key { to { stroke-dashoffset: 0; } }
@keyframes s-draw-h-key { to { stroke-dashoffset: 0; } }

/* 节点弹出 */
.s-pop {
  opacity: 0;
  transform: scale(0);
  animation: s-pop-in 0.3s cubic-bezier(0.34,1.56,0.64,1) forwards;
  animation-delay: var(--delay, 0.3s);
}
@keyframes s-pop-in { 0% { opacity:0; transform:scale(0); } 100% { opacity:1; transform:scale(1); } }

/* 轨道运动 */
.s-orbit {
  animation: s-orbit 2s linear infinite;
  transform-origin: 18px 18px;
}
@keyframes s-orbit { from { transform: rotate(0deg) translateX(12px); } to { transform: rotate(360deg) translateX(12px); } }

/* 淡入 */
.s-fade { opacity: 0; animation: s-fade-in 0.4s ease forwards; animation-delay: var(--delay, 0.8s); }
@keyframes s-fade-in { to { opacity: 1; } }

/* ── Card Entrance Animation ── */
.card-anim {
  opacity: 0; transform: translateY(24px);
  animation: card-enter 0.5s ease forwards;
  animation-delay: calc(0.1s + var(--order, 0) * 0.12s);
}
@keyframes card-enter { to { opacity: 1; transform: translateY(0); } }

/* ── Contact CTA ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 40px; }
.clist { list-style: none; }
.clist li { font-size: 14px; padding: 8px 0; color: var(--ztm); }
.clist li strong { color: var(--zt); }
.cta-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.cta-card { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 24px 16px; background: var(--ztc); border-radius: 16px; text-decoration: none; border: 1px solid rgba(37,99,235,0.06); transition: .3s; }
.cta-card:hover { transform: translateY(-3px); box-shadow: 0 4px 20px rgba(0,0,0,0.06); border-color: var(--ztb); }
.cta-icon { font-size: 32px; margin-bottom: 8px; }
.cta-title { font-size: 14px; font-weight: 700; color: var(--zt); margin-bottom: 4px; }
.cta-desc { font-size: 12px; color: var(--ztm); }

@media (max-width: 768px) {
  .stats-g { grid-template-columns: repeat(2, 1fr); }
  .case-grid, .know-teaser, .blog-teaser, .cta-cards { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .stat-n { font-size: 36px; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 968px) {
  .cards-3 { grid-template-columns: 1fr; }
  .ab-grid { grid-template-columns: 1fr; text-align: center; }
  .ab-img { order: -1; }
  .ab-photo { max-width: 260px; }
  .ct-grid { grid-template-columns: 1fr; }
  .rm-grid { grid-template-columns: 1fr; }
  .ft-top { flex-direction: column; gap: 14px; text-align: center; }
  .ft-legal { text-align: center; }
}

@media (max-width: 768px) {
  .svc-grid { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .tab-nav { flex-direction: column; width: 100%; }
  .tab-btn { text-align: center; }
}

@media (max-width: 640px) {
  .nav-links { display: none; position: absolute; top: var(--nav); left: 0; right: 0; background: rgba(10,10,15,.98); padding: 16px 24px; flex-direction: column; gap: 14px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .sec { padding: 60px 16px; }
  .sec-title { font-size: 26px; }
  .hero-acts { flex-direction: column; align-items: center; }
  .stat .num { font-size: 34px; }
}