/* ═══ MyNoema — Swiss / International Typographic Style ═══
   Monochrome + single coral accent · strict grid · hairline rules · bold grotesk.
   Fonts: Inter (Latin) + Noto Sans SC (bold CJK), loaded via Google Fonts. */
:root{
  --paper:#ffffff; --paper-2:#f4f3f0; --ink:#111110; --ink-2:#57554f; --ink-3:#918e87;
  --line:#e5e3dd; --rule:#111110; --accent:#e8836b; --accent-ink:#c85a3d;
  --font:'Inter','Noto Sans SC',system-ui,-apple-system,'Helvetica Neue','PingFang SC','Microsoft YaHei','Source Han Sans SC',Arial,sans-serif;
  --mono:'SFMono-Regular',ui-monospace,'JetBrains Mono','Cascadia Code',Menlo,Consolas,monospace;
  --maxw:1360px; --pad:clamp(20px,5vw,56px);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.62;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.mono{font-family:var(--mono)}

/* ── Nav ── */
.nav{position:fixed;inset:0 0 auto 0;z-index:100;background:rgba(255,255,255,.82);
  backdrop-filter:saturate(1.2) blur(12px);-webkit-backdrop-filter:saturate(1.2) blur(12px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
.nav.scrolled{border-bottom-color:var(--rule);background:rgba(255,255,255,.94)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);height:64px;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:19px;font-weight:800;letter-spacing:-.03em;display:flex;align-items:center;gap:8px}
.logo-heart{flex-shrink:0}
.nav-right{display:flex;align-items:center;gap:clamp(12px,2vw,26px)}
.nav-links{display:flex;align-items:center;gap:clamp(14px,2.2vw,28px)}
.nav-links a:not(.btn-nav){position:relative;font-size:13px;font-weight:500;color:var(--ink-2);transition:color .2s;padding:2px 0}
.nav-links a:not(.btn-nav)::after{content:"";position:absolute;left:0;right:100%;bottom:-3px;height:2px;background:var(--accent);transition:right .25s var(--ease)}
.nav-links a:not(.btn-nav):hover{color:var(--ink)}
.nav-links a:not(.btn-nav):hover::after,.nav-links a:not(.btn-nav).active::after{right:0}
.nav-links a:not(.btn-nav).active{color:var(--ink)}
.lang-toggle{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;min-width:60px;padding:0 13px;
  background:none;border:1px solid var(--rule);border-radius:0;color:var(--ink);font:600 12.5px/1 var(--mono);letter-spacing:.02em;cursor:pointer;
  transition:background .2s,color .2s,transform .1s}
.lang-toggle svg{opacity:.7}
.lang-toggle:hover{background:var(--ink);color:#fff}
.lang-toggle:hover svg{opacity:1}
.lang-toggle:active{transform:scale(.96)}
.btn-nav{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;white-space:nowrap;
  padding:11px 26px;background:var(--ink);color:#fff!important;border-radius:7px;font-weight:600;font-size:13.5px;line-height:1;
  transition:background .2s,transform .15s var(--ease)}
.btn-nav:hover{background:var(--accent);transform:translateY(-1px)}
.menu-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;background:none;border:none;color:var(--ink);cursor:pointer}

/* ── Buttons ── */
.btn-primary{display:inline-flex;align-items:center;gap:9px;padding:15px 30px;background:var(--ink);color:#fff;border:none;cursor:pointer;
  border-radius:0;font-size:15px;font-weight:600;transition:background .2s,transform .16s var(--ease)}
.btn-primary::after{content:"→";transition:transform .2s var(--ease)}
.btn-primary:hover{background:var(--accent)}
.btn-primary:hover::after{transform:translateX(4px)}
.btn-line{display:inline-flex;align-items:center;gap:8px;padding:15px 4px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:2px solid var(--ink);transition:color .2s,border-color .2s}
.btn-line::after{content:"→";transition:transform .2s var(--ease)}
.btn-line:hover{color:var(--accent-ink);border-color:var(--accent)}
.btn-line:hover::after{transform:translateX(4px)}

/* ── Hero ── */
.hero{padding:132px var(--pad) clamp(52px,6vw,80px)}
.hero-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.5fr .82fr;gap:clamp(30px,4.5vw,64px);align-items:end}
.hero-copy{min-width:0}
.hero-meta{display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-3);margin-bottom:30px}
.hero-meta .mk{color:var(--accent-ink);font-weight:600}
.hero-meta .bar{flex:1;height:1px;background:var(--line);max-width:120px}
.hero-title{font-size:clamp(40px,6.2vw,84px);font-weight:800;line-height:1.02;letter-spacing:-.035em;
  margin-bottom:28px;text-wrap:balance}
.hero-title .hero-accent{color:var(--accent)}
.hero-sub{font-size:clamp(16px,1.4vw,18px);color:var(--ink-2);line-height:1.62;max-width:52ch;margin-bottom:34px}
.hero-sub strong{color:var(--ink);font-weight:700}
.hero-actions{display:flex;gap:22px;flex-wrap:wrap;align-items:center}
.hero-panel{border:1px solid var(--rule)}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:13px 18px;border-bottom:1px solid var(--rule);
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2)}
.panel-head .live{display:inline-flex;align-items:center;gap:7px;color:var(--accent-ink);font-weight:600}
.panel-head .live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
.panel-row{padding:17px 18px;border-top:1px solid var(--line)}
.panel-row:first-of-type{border-top:none}
.panel-n{font-size:clamp(28px,2.9vw,38px);font-weight:800;line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.panel-l{margin-top:8px;font-family:var(--mono);font-size:11px;color:var(--ink-2);line-height:1.5}
.hero-load>*{opacity:0;animation:up .8s var(--ease) forwards}
.hero-load>*:nth-child(1){animation-delay:.05s}
.hero-load>*:nth-child(2){animation-delay:.14s}
.hero-load>*:nth-child(3){animation-delay:.23s}
.hero-load>*:nth-child(4){animation-delay:.32s}
@keyframes up{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
/* dark thesis band */
.band-dark{background:var(--ink);color:#fff;padding:clamp(60px,8vw,104px) var(--pad)}
.eyebrow-d{display:block;font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:24px}
.thesis{font-size:clamp(26px,3.6vw,48px);font-weight:800;line-height:1.16;letter-spacing:-.02em;max-width:1000px;text-wrap:balance}
.thesis .hl{color:var(--accent)}

/* ── Section scaffold ── */
.section{padding:clamp(60px,7.5vw,104px) var(--pad);border-top:1px solid var(--rule)}
.section-inner{max-width:var(--maxw);margin:0 auto}
.sec-head{display:flex;align-items:baseline;gap:16px;margin-bottom:clamp(26px,3vw,40px)}
.sec-no{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--accent-ink);letter-spacing:.05em}
.eyebrow{font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-2)}
.section-title{font-size:clamp(27px,4.1vw,52px);font-weight:800;line-height:1.06;letter-spacing:-.025em;margin-bottom:18px;max-width:22ch;text-wrap:balance}
.section-sub{font-size:clamp(15px,1.25vw,17px);color:var(--ink-2);max-width:62ch;line-height:1.62}

/* ── Problem ── */
.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:clamp(40px,4.5vw,64px);border-top:2px solid var(--rule)}
.problem-card{padding:34px 30px 0 0}
.problem-card + .problem-card{padding-left:30px;border-left:1px solid var(--line)}
.problem-number{font-size:clamp(44px,5.8vw,74px);font-weight:800;line-height:1;letter-spacing:-.03em;color:var(--accent);
  font-variant-numeric:tabular-nums;margin-bottom:14px}
.problem-unit{font-size:.34em;font-weight:700;margin-left:6px;color:var(--ink-3)}
.problem-label{font-size:15px;font-weight:700;margin-bottom:12px;color:var(--ink);line-height:1.35}
.problem-detail{font-size:13.5px;color:var(--ink-2);line-height:1.62}
.problem-note{margin-top:38px;padding-top:16px;border-top:1px solid var(--line);font-family:var(--mono);font-size:12px;
  color:var(--ink-2);line-height:1.75;max-width:940px}
.problem-note::before{content:"SOURCES";display:inline-block;font-size:10.5px;font-weight:600;letter-spacing:.14em;color:var(--accent-ink);margin-right:12px}
html[lang="zh-CN"] .problem-note::before{content:"来源"}

/* ── Stat strip ── */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--rule)}
.stat{padding:30px 22px 0 0}
.stat + .stat{padding-left:22px;border-left:1px solid var(--line)}
.stat-num{font-size:clamp(34px,4.6vw,58px);font-weight:800;line-height:1;letter-spacing:-.03em;color:var(--ink);
  font-variant-numeric:tabular-nums}
.stat-label{margin-top:12px;font-family:var(--mono);font-size:12px;color:var(--ink-2);line-height:1.5}

/* ── Products ── */
.product-row{display:grid;grid-template-columns:1.3fr 1fr;margin-top:clamp(40px,4.5vw,60px);border-top:2px solid var(--rule)}
.product-card{padding:38px 40px 40px 0}
.product-card + .product-card{padding-left:40px;border-left:1px solid var(--line)}
.badge{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--accent-ink);margin-bottom:20px}
.badge::before{content:"";width:7px;height:7px;background:var(--accent);border-radius:50%}
.badge-research{color:var(--ink-2)}
.badge-research::before{background:var(--ink)}
.product-name{font-size:clamp(26px,2.8vw,36px);font-weight:800;letter-spacing:-.02em;margin-bottom:6px}
.product-desc{font-size:14.5px;color:var(--ink-2);font-weight:600;margin-bottom:18px}
.product-detail{font-size:14.5px;color:var(--ink-2);line-height:1.7;margin-bottom:24px}
.product-detail strong{color:var(--ink);font-weight:700}
.product-features{list-style:none;margin-bottom:30px;display:flex;flex-direction:column}
.product-features li{font-size:13.5px;color:var(--ink);padding:11px 0 11px 26px;position:relative;line-height:1.55;border-top:1px solid var(--line)}
.product-features li:first-child{border-top:none}
.product-features li::before{content:"";position:absolute;left:0;top:17px;width:9px;height:2px;background:var(--accent)}
.product-research .product-features li::before{background:var(--ink)}

/* boundaries */
.boundaries{margin-top:clamp(40px,4.5vw,60px);border-top:2px solid var(--rule);padding-top:26px}
.boundaries-label{font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-bottom:22px}
.boundaries-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
.boundary{display:flex;gap:14px;align-items:flex-start;background:var(--paper);padding:20px 26px 20px 0}
.boundaries-grid .boundary:nth-child(even){padding-left:26px}
.boundary-mark{flex-shrink:0;font-family:var(--mono);font-size:14px;color:var(--accent-ink);font-weight:700;margin-top:1px}
.boundary-t{font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:4px}
.boundary-d{font-size:13px;color:var(--ink-2);line-height:1.55}

/* ── Research ── */
.research-grid{display:grid;grid-template-columns:repeat(2,1fr);margin-top:clamp(40px,4.5vw,60px);border-top:2px solid var(--rule)}
.research-card{padding:32px 34px 34px 0}
.research-card:nth-child(even){padding-left:34px;border-left:1px solid var(--line)}
.research-card:nth-child(n+3){border-top:1px solid var(--line)}
.research-idx{font-family:var(--mono);font-size:12px;color:var(--accent-ink);font-weight:600;margin-bottom:16px;display:block}
.research-card h4{font-size:17px;font-weight:700;margin-bottom:10px;letter-spacing:-.01em}
.research-card p{font-size:13.5px;color:var(--ink-2);line-height:1.66}
.research-paper{margin-top:clamp(32px,3.5vw,44px);padding-top:22px;border-top:2px solid var(--rule);display:flex;flex-direction:column;gap:5px}
.paper-label{font-family:var(--mono);font-size:11px;font-weight:600;color:var(--accent-ink);text-transform:uppercase;letter-spacing:.12em;margin-bottom:4px}
.paper-title{font-size:clamp(16px,1.6vw,21px);font-weight:700;line-height:1.4;letter-spacing:-.01em;max-width:70ch}
.paper-venue{font-family:var(--mono);font-size:12.5px;color:var(--ink-3)}

/* ── Team ── */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:clamp(40px,4.5vw,56px);border-top:2px solid var(--rule)}
.team-card{padding:32px 30px 0 0}
.team-card + .team-card{padding-left:30px;border-left:1px solid var(--line)}
.team-k{font-size:22px;font-weight:800;letter-spacing:-.02em;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.team-k::before{content:"";width:10px;height:10px;background:var(--accent)}
.team-card p{font-size:13.5px;color:var(--ink-2);line-height:1.66;margin-bottom:16px}
.team-link{font-family:var(--mono);font-size:12.5px;color:var(--accent-ink);font-weight:600}
.team-link:hover{text-decoration:underline}
.team-meta{font-family:var(--mono);font-size:12px;color:var(--ink-3)}

/* ── Contact ── */
.contact-form-wrapper{max-width:660px;margin-top:clamp(36px,4vw,52px)}
.contact-form{display:flex;flex-direction:column;gap:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-group{display:flex;flex-direction:column;gap:8px}
.form-group label{font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-2)}
.form-group input,.form-group select,.form-group textarea{padding:12px 14px;border:1px solid var(--rule);border-radius:0;
  font-size:14.5px;font-family:var(--font);color:var(--ink);background:var(--paper);transition:border-color .2s,box-shadow .2s;outline:none}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent)}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--ink-3)}
.form-group select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23918e87' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.form-group textarea{resize:vertical;min-height:110px}
.form-note{font-family:var(--mono);font-size:12.5px;color:var(--ink-3)}
.form-note a{color:var(--accent-ink);text-decoration:underline}
.form-success{display:none;align-items:center;gap:10px;padding:16px;border:1px solid var(--accent);font-size:14px;color:var(--accent-ink);font-weight:600}
.form-success.show{display:flex}

/* ── Footer ── */
.footer{background:var(--ink);color:#fff;padding:clamp(52px,7vw,84px) var(--pad) 32px}
.footer-inner{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap}
.footer-word{font-size:clamp(44px,8vw,104px);font-weight:800;letter-spacing:-.04em;line-height:.86;color:#fff}
.footer-word .dot{color:var(--accent)}
.footer-tag{font-family:var(--mono);font-size:12.5px;color:rgba(255,255,255,.55);margin-top:14px}
.footer-right{display:flex;flex-direction:column;gap:9px;text-align:right;font-family:var(--mono);font-size:13px}
.footer-right a{color:rgba(255,255,255,.6)}
.footer-right a:hover{color:var(--accent)}
.footer-legal{max-width:var(--maxw);margin:42px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  font-family:var(--mono);font-size:11px;color:rgba(255,255,255,.4);line-height:1.7}

/* ── Watch / demo ── */
.section-watch .sec-no{color:var(--accent)}
.video-stage{margin-top:clamp(30px,3.5vw,46px);max-width:1000px}
.video-frame{position:relative;aspect-ratio:16/9;border:1px solid var(--rule);background:var(--ink);overflow:hidden}
.video-embed{position:absolute;inset:0}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-play{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  background:var(--ink);color:#fff;border:none;cursor:pointer;transition:background .25s}
.video-play:hover{background:#1c1b18}
.video-frame.playing .video-play{display:none}
.video-src-label{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.5)}
.video-tri{color:var(--accent);transition:transform .2s var(--ease);filter:drop-shadow(0 3px 14px rgba(232,131,107,.4))}
.video-play:hover .video-tri{transform:scale(1.12)}
.video-cta{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.82)}
.video-note{margin-top:15px;font-size:12px;color:var(--ink-3)}
.video-note a{color:var(--accent-ink);text-decoration:underline}

/* ── Motion ── */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ── Responsive ── */
@media(max-width:960px){ .hero-inner{grid-template-columns:1fr;gap:38px;align-items:start} .hero-title{font-size:clamp(40px,9vw,72px)} }
@media(max-width:1024px){ .product-row{grid-template-columns:1fr} .product-card+.product-card{padding-left:0;border-left:none;border-top:1px solid var(--line);padding-top:34px;margin-top:34px} }
@media(max-width:820px){
  .hero-title{font-size:clamp(40px,10vw,68px)}
  .research-grid{grid-template-columns:1fr}
  .research-card:nth-child(even){padding-left:0;border-left:none}
  .research-card:nth-child(n+2){border-top:1px solid var(--line)}
  .boundaries-grid{grid-template-columns:1fr}
  .boundaries-grid .boundary:nth-child(even){padding-left:0}
  .team-grid{grid-template-columns:1fr}
  .team-card+.team-card{padding-left:0;border-left:none;border-top:1px solid var(--line);padding-top:30px;margin-top:30px}
}
@media(max-width:680px){
  .nav-links{display:none;flex-direction:column;align-items:flex-start;position:absolute;top:64px;left:0;right:0;
    background:var(--paper);border-bottom:1px solid var(--rule);padding:20px var(--pad);gap:18px}
  .nav-links.open{display:flex}
  .nav-links a:not(.btn-nav)::after{display:none}
  .menu-toggle{display:flex}
  .problem-grid,.stat-strip,.hero-chips{grid-template-columns:1fr}
  .problem-card+.problem-card,.stat+.stat,.chip+.chip{padding-left:0;border-left:none;border-top:1px solid var(--line);padding-top:26px;margin-top:26px}
  .form-row{grid-template-columns:1fr}
  .hero-actions{gap:14px}
  .btn-primary{width:100%;justify-content:center}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
  .hero-load>*{opacity:1!important}
}