/* ============================================================
   Odd Studio — shared design system
   Black & white minimal · per-product accent · Fraunces (home) + Source Serif 4 (product pages) + Inter
   ============================================================ */
:root{
  --ink:#0f0f0f;
  --paper:#FFFFFF;      /* pure white */
  --line:#EAEAEA;
  --line-2:#d8d8d8;
  --muted:#6d6d6d;
  --soft:#f5f5f5;
  /* per-product accents — the only color on the site */
  --oddpen:#C2410C;   /* text      */
  --vox:#7C6BF2;      /* voice     */
  --vh:#0D9488;       /* character */
  --image:#2563EB;    /* image     */
  --video:#DC2626;    /* video     */
  --allin:#141413;    /* all-in-one */
  --serif:'Fraunces',Georgia,'Times New Roman',serif;   /* home = Fraunces; product pages override to Source Serif 4 */
  --sans:'Inter',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;background:var(--paper);}
body{font-family:var(--sans);background:transparent;color:var(--ink);
  -webkit-font-smoothing:antialiased;line-height:1.55;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
/* ---------- a11y: skip-link + keyboard focus ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.skip-link{position:absolute;left:8px;top:-48px;z-index:9999;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;font-size:14px;font-family:var(--sans);transition:top .2s;}
.skip-link:focus{top:8px;}
:focus-visible{outline:2px solid var(--oddpen);outline-offset:3px;border-radius:3px;}
.wrap{max-width:1160px;margin:0 auto;padding:0 32px;}
.serif{font-family:var(--serif);}

/* ---------- scroll-reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);
  transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation:none!important;}
}

/* ---------- NAV (black header bar) ---------- */
nav{position:fixed;top:0;left:0;width:100%;z-index:50;background:var(--ink);}
nav::after{content:"";position:absolute;left:0;right:0;top:100%;height:44px;pointer-events:none;
  background:linear-gradient(180deg,var(--ink),rgba(15,15,15,0));}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px;}
.logo{font-family:var(--serif);font-weight:600;font-size:19px;letter-spacing:.04em;
  text-transform:uppercase;display:flex;align-items:center;gap:9px;color:var(--paper);}
.logo .dot{width:9px;height:9px;border-radius:50%;background:var(--oddpen);
  animation:hue 14s linear infinite;}
@keyframes hue{0%{background:var(--oddpen);}25%{background:var(--vox);}
  50%{background:var(--vh);}75%{background:var(--image);}100%{background:var(--oddpen);}}
.nav-links{display:flex;gap:30px;font-size:14px;font-weight:500;color:rgba(255,255,255,.7);}
.nav-links a{position:relative;}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:1px;
  background:var(--paper);transition:width .25s;}
.nav-links a:hover{color:var(--paper);}
.nav-links a:hover::after{width:100%;}
@media(max-width:720px){.nav-links{display:none;}}

/* ---------- buttons ---------- */
.btn{display:inline-block;font-size:15px;font-weight:500;padding:13px 26px;border-radius:99px;
  transition:transform .2s,background .2s,color .2s,border-color .2s;cursor:pointer;}
.btn-pri{background:var(--ink);color:var(--paper);}
.btn-pri:hover{transform:translateY(-2px);}
.btn-sec{border:1px solid var(--line-2);}
.btn-sec:hover{border-color:var(--ink);}
.btn-light{background:var(--paper);color:var(--ink);}
.btn-light:hover{transform:translateY(-2px);}

/* ---------- footer ---------- */
footer{margin-top:90px;border-top:1px solid var(--line);padding:52px 0 64px;}
.foot-in{display:flex;justify-content:space-between;flex-wrap:wrap;gap:32px;}
.foot-col h5{font-size:13px;font-weight:600;margin-bottom:14px;}
.foot-col a{display:block;font-size:14px;color:var(--muted);margin-bottom:9px;}
.foot-col a:hover{color:var(--ink);}
.foot-brand{max-width:250px;}
.foot-brand .logo{margin-bottom:12px;color:var(--ink);}
.foot-brand p{font-size:13px;color:var(--muted);}
.foot-social{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;align-items:center;}
.foot-social a{display:inline-flex;margin:0;color:var(--ink);transition:opacity .2s;}
.foot-social a svg{width:18px;height:18px;fill:currentColor;display:block;}
.foot-social a:hover{opacity:.55;}
/* newsletter subscribe (top of footer) */
.foot-sub{display:flex;justify-content:space-between;align-items:flex-start;gap:36px;flex-wrap:wrap;padding-bottom:38px;margin-bottom:36px;border-bottom:1px solid var(--line);}
.foot-sub-copy{max-width:360px;}
.foot-sub-copy h5{font-size:15px;font-weight:600;margin-bottom:6px;color:var(--ink);}
.foot-sub-copy p{font-size:13px;line-height:1.55;color:var(--muted);}
.sub-form{flex:0 0 auto;width:330px;max-width:100%;}
.sub-row{display:flex;gap:8px;}
.sub-email{flex:1;min-width:0;padding:11px 14px;font:inherit;font-size:14px;border:1px solid var(--line);border-radius:9px;background:var(--paper);color:var(--ink);}
.sub-email:focus{outline:none;border-color:var(--ink);}
.sub-btn{padding:11px 18px;font:inherit;font-size:14px;font-weight:500;border:none;border-radius:9px;background:var(--ink);color:var(--paper);cursor:pointer;white-space:nowrap;transition:opacity .2s;}
.sub-btn:hover{opacity:.85;}
.sub-btn[disabled]{opacity:.5;cursor:default;}
.sub-hp{position:absolute !important;left:-9999px;width:1px;height:1px;opacity:0;}
.sub-form .cf-turnstile{margin-top:10px;}
.sub-msg{margin:10px 0 0;font-size:13px;min-height:17px;line-height:1.4;}
.sub-msg.ok{color:var(--vh);}
.sub-msg.err{color:#d33;}
.copyright{margin-top:42px;font-size:12px;color:var(--muted);text-align:center;}

/* ---------- legal / content pages ---------- */
.legal-page{max-width:760px;margin:0 auto;padding:128px 32px 96px;}
.legal-page .eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;}
.legal-page h1{font-family:var(--serif);font-weight:600;font-size:clamp(34px,5vw,52px);line-height:1.05;margin-bottom:14px;}
.legal-page .updated{font-size:13px;color:var(--muted);margin-bottom:22px;}
.legal-note{background:var(--soft);border:1px solid var(--line);border-radius:10px;
  padding:14px 18px;font-size:13px;line-height:1.6;color:var(--muted);margin-bottom:44px;}
.legal-page h2{font-family:var(--serif);font-weight:600;font-size:23px;margin:40px 0 12px;}
.legal-page h3{font-size:16px;font-weight:600;margin:26px 0 8px;}
.legal-page p,.legal-page li{font-size:15px;line-height:1.7;color:#333;margin-bottom:12px;}
.legal-page ul{list-style:none;padding-left:0;margin-bottom:12px;}
.legal-page li{position:relative;padding-left:0;}
.legal-page li::before{content:"";position:absolute;left:-1.1em;top:.62em;width:5px;height:5px;
  border-radius:50%;background:#666;}
.legal-page a{color:var(--ink);text-decoration:underline;text-underline-offset:2px;}
.legal-page a:hover{color:var(--muted);}
.legal-back{display:inline-block;margin-top:40px;font-size:14px;color:var(--muted);}
.legal-back:hover{color:var(--ink);}

/* ---------- blog: index ---------- */
.blog-page{max-width:1080px;margin:0 auto;padding:128px 32px 100px;}
.blog-head{max-width:680px;margin-bottom:54px;}
.blog-head .eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;}
.blog-head h1{font-family:var(--serif);font-weight:600;font-size:clamp(36px,5vw,56px);line-height:1.04;margin-bottom:16px;}
.blog-head p{font-size:17px;line-height:1.6;color:var(--muted);}
.blog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
@media(max-width:760px){.blog-grid{grid-template-columns:1fr;}}
.post-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:14px;
  padding:28px;background:var(--paper);transition:border-color .2s,transform .2s;}
.post-card:hover{border-color:var(--ink);transform:translateY(-3px);}
.post-card .cat{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);}
.post-card h3{font-family:var(--serif);font-weight:600;font-size:24px;line-height:1.15;margin:12px 0 10px;}
.post-card p{font-size:14.5px;line-height:1.6;color:var(--muted);margin-bottom:18px;flex:1;}
.post-card .read{font-size:14px;font-weight:500;color:var(--ink);}

/* ---------- blog: article ---------- */
.post{max-width:720px;margin:0 auto;padding:128px 32px 90px;}
.post .eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;}
.post h1{font-family:var(--serif);font-weight:600;font-size:clamp(34px,5vw,52px);line-height:1.06;margin-bottom:14px;}
.post .post-meta{font-size:13px;color:var(--muted);margin-bottom:30px;}
.post-cover{aspect-ratio:16/9;border-radius:14px;overflow:hidden;position:relative;
  margin-bottom:40px;display:grid;place-items:center;background:#0f0f0f;color:#fff;
  font-family:var(--serif);font-size:23px;letter-spacing:.02em;--cv-accent:rgba(255,255,255,.3);}
.post-cover::before{content:"";position:absolute;inset:0;z-index:1;
  background:repeating-radial-gradient(circle at 86% 50%,var(--cv-accent) 0 1.5px,transparent 1.5px 40px);
  -webkit-mask-image:radial-gradient(circle at 86% 50%,#000,transparent 78%);
  mask-image:radial-gradient(circle at 86% 50%,#000,transparent 78%);}
.post-cover span{position:relative;z-index:2;}
.post-cover img{width:100%;height:100%;object-fit:cover;position:relative;z-index:2;}
.pc-oddpen{--cv-accent:rgba(194,65,12,.5);}
.pc-vox{--cv-accent:rgba(124,107,242,.5);}
.pc-vh{--cv-accent:rgba(13,148,136,.55);}
.pc-image{--cv-accent:rgba(37,99,235,.5);}
.pc-video{--cv-accent:rgba(220,38,38,.5);}
.pc-suite{--cv-accent:rgba(255,255,255,.28);}
.post-note{background:var(--soft);border:1px solid var(--line);border-radius:10px;
  padding:14px 18px;font-size:13px;line-height:1.6;color:var(--muted);margin-bottom:38px;}
.post h2{font-family:var(--serif);font-weight:600;font-size:26px;margin:42px 0 14px;}
.post p,.post li{font-size:17px;line-height:1.75;color:#2e2e2b;margin-bottom:16px;}
.post ul,.post ol{list-style:none;padding-left:0;margin-bottom:16px;}
.post ol{counter-reset:post-item;}
.post ol>li{counter-increment:post-item;}
.post ol>li::before{content:counter(post-item) ".";position:absolute;left:-1.8em;top:0;
  font-weight:500;color:var(--ink);}
.post ul>li::before{content:"";position:absolute;left:-1.4em;top:.72em;width:6px;height:6px;
  border-radius:50%;background:var(--ink);}
.post li{position:relative;padding-left:0;margin-bottom:8px;}
.post blockquote{margin:26px 0;padding:18px 22px;border-left:3px solid var(--ink);
  background:var(--soft);border-radius:0 10px 10px 0;}
.post blockquote p{font-size:16px;margin:0;color:#2e2e2b;}
.post blockquote b{color:var(--ink);}
.post-cta{margin-top:50px;padding-top:30px;border-top:1px solid var(--line);
  display:flex;gap:14px;align-items:center;flex-wrap:wrap;}

/* ============================================================
   HOMEPAGE
   ============================================================ */
/* ① full-screen dynamic poster */
.hero{position:relative;height:100vh;min-height:560px;display:grid;place-items:center;
  text-align:center;overflow:hidden;background:var(--paper);}
.hero .aura{position:absolute;width:60vw;height:60vw;border-radius:50%;filter:blur(110px);
  opacity:.16;background:var(--vh);top:50%;left:50%;transform:translate(-50%,-50%);
  animation:aura 22s ease-in-out infinite alternate;}
@keyframes aura{
  0%{background:var(--vh);transform:translate(-60%,-55%) scale(1);}
  50%{background:var(--image);}
  100%{background:var(--oddpen);transform:translate(-40%,-45%) scale(1.25);}}
.hero .inner{position:relative;z-index:3;}
.hero .kicker{font-size:13px;font-weight:500;letter-spacing:.05em;color:var(--muted);margin-bottom:26px;}
.hero h1{font-family:var(--serif);font-weight:500;font-size:clamp(54px,11vw,150px);
  line-height:.92;letter-spacing:-.03em;}
.hero .scroll{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:3;
  font-size:12px;color:var(--muted);letter-spacing:.1em;}
.hero .scroll::after{content:"";display:block;width:1px;height:34px;background:var(--muted);
  margin:12px auto 0;opacity:.5;animation:down 1.8s ease-in-out infinite;transform-origin:top;}
@keyframes down{0%,100%{transform:scaleY(.4);opacity:.2;}50%{transform:scaleY(1);opacity:.6;}}

/* ② animated slogan + intro */
.slogan{padding:140px 0;text-align:center;}
.slogan .lead{font-family:var(--serif);font-weight:400;font-size:clamp(28px,5vw,62px);
  letter-spacing:-.02em;line-height:1.12;max-width:18ch;margin:0 auto;}
.slogan .cycler{display:inline-block;height:1.12em;overflow:hidden;vertical-align:bottom;}
.slogan .cycler ul{list-style:none;animation:cycle 9s infinite;}
.slogan .cycler li{font-style:italic;color:var(--oddpen);}
.slogan .cycler li:nth-child(2){color:var(--vox);}
.slogan .cycler li:nth-child(3){color:var(--vh);}
.slogan .cycler li:nth-child(4){color:var(--image);}
@keyframes cycle{0%,20%{transform:translateY(0);}25%,45%{transform:translateY(-1.12em);}
  50%,70%{transform:translateY(-2.24em);}75%,95%{transform:translateY(-3.36em);}100%{transform:translateY(0);}}
.slogan p{margin:36px auto 0;max-width:50ch;font-size:18px;color:var(--muted);}

/* ③ product boxes */
.section-head{display:flex;align-items:baseline;justify-content:space-between;
  padding-top:48px;border-top:1px solid var(--line);margin-bottom:32px;}
.section-head h2{font-family:var(--serif);font-weight:500;font-size:28px;letter-spacing:-.02em;}
.section-head span{font-size:13px;color:var(--muted);}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.grid{grid-template-columns:1fr;}}
/* black product boxes — keep the accent-color hover motion */
.card{position:relative;border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:24px 22px;
  background:linear-gradient(180deg,#1a1a1e 0%,#151518 46%,rgba(20,20,24,0.40) 100%);
  color:var(--paper);overflow:hidden;
  transition:transform .25s,box-shadow .25s,border-color .25s;
  min-height:196px;display:flex;flex-direction:column;}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 44px -22px rgba(0,0,0,.55);
  border-color:color-mix(in srgb,var(--ac) 70%,transparent);}
.card::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:var(--ac);
  transform:scaleX(0);transform-origin:left;transition:transform .25s;}
.card:hover::before{transform:scaleX(1);}
/* faint accent glow on hover */
.card::after{content:"";position:absolute;width:60%;height:60%;border-radius:50%;
  background:var(--ac);filter:blur(60px);opacity:0;top:-20%;right:-15%;transition:opacity .3s;z-index:0;}
.card:hover::after{opacity:.16;}
.card>*{position:relative;z-index:1;}
.card .cat{display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;color:rgba(255,255,255,.55);}
.card .cat .sq{display:none;}
.card h3{font-family:var(--serif);font-weight:500;font-size:23px;margin-top:14px;}
.card .desc{font-size:13.5px;color:rgba(255,255,255,.58);margin-top:8px;flex:1;}
.card .ft{display:flex;align-items:center;justify-content:space-between;margin-top:16px;}
.card .price{font-size:13px;font-weight:600;}
.card .arrow{width:29px;height:29px;border-radius:50%;border:1px solid rgba(255,255,255,.22);
  display:grid;place-items:center;color:var(--ac);transition:.25s;font-size:14px;}
.card:hover .arrow{background:var(--ac);color:#fff;border-color:var(--ac);}
.soon{font-size:11px;font-weight:600;color:rgba(255,255,255,.5);
  border:1px solid rgba(255,255,255,.18);padding:3px 9px;border-radius:99px;}

/* secondary strips */
.strip{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media(max-width:720px){.strip{grid-template-columns:1fr;}}
.tile{border:1px solid var(--line);border-radius:16px;padding:30px 28px;background:#fff;transition:border-color .2s;}
.tile:hover{border-color:var(--line-2);}
.tile .k{font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);}
.tile h4{font-family:var(--serif);font-weight:500;font-size:23px;margin-top:12px;}
.tile p{font-size:14px;color:var(--muted);margin-top:8px;}

/* ④ second dynamic poster */
.poster2{position:relative;height:62vh;min-height:400px;margin-top:120px;overflow:hidden;
  display:grid;place-items:center;background:var(--ink);border-radius:28px;text-align:center;}
.poster2 .aura{position:absolute;width:46vw;height:46vw;border-radius:50%;filter:blur(110px);
  opacity:.32;background:var(--vh);top:50%;left:50%;transform:translate(-50%,-50%);
  animation:aura2 20s ease-in-out infinite alternate;}
@keyframes aura2{0%{background:var(--vh);transform:translate(-65%,-50%);}
  50%{background:var(--oddpen);}100%{background:var(--vox);transform:translate(-35%,-50%) scale(1.2);}}
.poster2 .ph{position:relative;z-index:3;color:var(--paper);}
.poster2 .ph h2{font-family:var(--serif);font-weight:500;font-size:clamp(34px,5.5vw,64px);
  line-height:1.02;letter-spacing:-.02em;}
.poster2 .ph .btn{margin-top:30px;}

/* ============================================================
   PRODUCT DETAIL PAGE
   ============================================================ */
.pd{padding-top:64px;}              /* clear fixed nav */
/* hero: split — signature color block + title/cta */
.pd-hero{display:grid;grid-template-columns:1.05fr 1fr;gap:0;min-height:78vh;
  border-bottom:1px solid var(--line);}
@media(max-width:860px){.pd-hero{grid-template-columns:1fr;}}
.pd-block{position:relative;overflow:hidden;background:var(--ac);
  display:grid;place-items:center;min-height:340px;}
/* 双拼色块: real diagonal two-tone — product accent + ink */
.pd-block::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(120deg,transparent 0 47%,var(--ink) 47% 100%);}
.pd-block .glyph{position:relative;z-index:3;font-family:var(--serif);font-weight:500;
  font-size:clamp(80px,16vw,200px);color:var(--paper);line-height:1;mix-blend-mode:difference;}
.pd-block .float{position:absolute;z-index:2;width:55%;height:55%;border-radius:50%;filter:blur(70px);
  background:rgba(255,255,255,.30);top:-10%;right:-10%;animation:aura 18s ease-in-out infinite alternate;}
.pd-info{display:flex;flex-direction:column;justify-content:center;padding:64px 60px;}
@media(max-width:860px){.pd-info{padding:48px 32px;}}
.pd-cat{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:18px;}
.pd-cat .sq{width:10px;height:10px;border-radius:3px;background:var(--ac);}
.pd-info h1{font-family:var(--serif);font-weight:500;font-size:clamp(40px,6vw,68px);
  line-height:1;letter-spacing:-.02em;}
.pd-info .tag{font-size:18px;color:var(--muted);margin-top:18px;max-width:34ch;}
.pd-price{display:flex;align-items:baseline;gap:10px;margin:30px 0 26px;}
.pd-price .amt{font-family:var(--serif);font-size:38px;font-weight:500;}
.pd-price .note{font-size:13px;color:var(--muted);}
.pd-cta{display:flex;gap:12px;flex-wrap:wrap;}

/* at-a-glance strip under hero */
.glance{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line);}
@media(max-width:760px){.glance{grid-template-columns:repeat(2,1fr);}}
.glance div{padding:26px 28px;border-right:1px solid var(--line);}
.glance div:last-child{border-right:none;}
.glance .k{font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);}
.glance .v{font-family:var(--serif);font-size:21px;font-weight:500;margin-top:6px;}

/* anchor sub-menu (sketch: 菜单) */
.pd-menu{position:sticky;top:64px;z-index:40;background:rgba(252,252,250,.85);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.pd-menu-in{display:flex;gap:28px;height:54px;align-items:center;font-size:14px;font-weight:500;color:var(--muted);}
.pd-menu-in a:hover{color:var(--ink);}

/* important info: intro + how-to */
.pd-sec{padding:90px 0;border-bottom:1px solid var(--line);}
.pd-sec h2{font-family:var(--serif);font-weight:500;font-size:34px;letter-spacing:-.02em;margin-bottom:14px;}
.pd-sec .sub{color:var(--muted);max-width:60ch;font-size:17px;margin-bottom:46px;}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media(max-width:760px){.steps{grid-template-columns:1fr;}}
.step{border:1px solid var(--line);border-radius:16px;padding:28px 24px;background:#fff;}
.step .n{font-family:var(--serif);font-size:30px;color:var(--ac);}
.step h4{font-size:17px;font-weight:600;margin:12px 0 8px;}
.step p{font-size:14px;color:var(--muted);}
.features{display:grid;grid-template-columns:1fr 1fr;gap:14px 40px;margin-top:10px;}
@media(max-width:760px){.features{grid-template-columns:1fr;}}
.features li{list-style:none;display:flex;gap:12px;font-size:15px;padding:14px 0;border-bottom:1px solid var(--line);}
.features li b{color:var(--ac);}
/* gallery */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
@media(max-width:760px){.shots{grid-template-columns:1fr;}}
.shot{aspect-ratio:4/3;border-radius:14px;border:1px solid var(--line);
  background:var(--soft);display:grid;place-items:center;color:var(--muted);font-size:13px;}
/* requirements + faq */
.req{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
@media(max-width:760px){.req{grid-template-columns:1fr;}}
.req .k{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;}
.req p{font-size:15px;color:#3a3a36;margin-bottom:10px;}
.faq details{border-bottom:1px solid var(--line);padding:18px 0;}
.faq summary{font-size:16px;font-weight:500;cursor:pointer;list-style:none;display:flex;justify-content:space-between;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";color:var(--muted);}
.faq details[open] summary::after{content:"–";}
.faq p{font-size:14.5px;color:var(--muted);margin-top:12px;max-width:64ch;}

/* ============================================================
   HOMEPAGE v3 — word-sphere hero / intro / about / wireframe dome
   ============================================================ */
/* ① word-sphere hero (dark techy orb on light page) */
/* soft dark atmosphere behind the words (fades out, NOT a solid disc) */
.hero::before{content:"";position:absolute;width:740px;height:740px;border-radius:50%;z-index:0;
  background:radial-gradient(circle at 50% 47%,
    rgba(20,19,17,0.80) 0%, rgba(20,19,17,0.64) 36%,
    rgba(22,21,19,0.36) 56%, rgba(22,21,19,0.12) 74%, rgba(22,21,19,0) 90%);}
@media(max-width:680px){.hero::before{width:440px;height:440px;}}
#heroGlobe{position:absolute;z-index:1;width:660px;height:660px;pointer-events:none;}
@media(max-width:680px){#heroGlobe{transform:scale(.55);}}
.sphere{position:absolute;width:660px;height:660px;z-index:2;pointer-events:none;}
@media(max-width:680px){.sphere{transform:scale(.55);}}
.sphere span{position:absolute;left:50%;top:50%;font-family:var(--sans);font-weight:600;
  font-size:13px;letter-spacing:.04em;color:#dcd9d2;white-space:nowrap;
  will-change:transform,opacity;}
.sphere span.lead{font-weight:700;letter-spacing:.04em;}
.sphere span.accent{font-weight:700;letter-spacing:.05em;}
.sphere span.soft{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:0;}
.hero-logo{position:relative;z-index:4;text-align:center;color:var(--paper);pointer-events:none;
  transition:opacity .45s ease,transform .45s ease,filter .45s ease;min-height:1.2em;}
.hero-logo.swap{opacity:0;transform:translateY(-12px);filter:blur(7px);}
/* the black block behind the logo */
.hero-logo::before{content:"";position:absolute;left:50%;top:50%;width:384px;height:236px;
  transform:translate(-50%,-50%);border-radius:30px;z-index:-1;
  background:#100f0d;box-shadow:0 26px 80px -12px rgba(0,0,0,.55),inset 0 0 0 1px rgba(255,255,255,.05);}
@media(max-width:560px){.hero-logo::before{width:260px;height:170px;}}
.hero-logo .mark{font-family:var(--serif);font-weight:500;font-size:clamp(60px,10.5vw,150px);
  letter-spacing:.04em;line-height:1;}
.hero-logo .mark.slo{font-style:italic;font-size:clamp(40px,7vw,92px);letter-spacing:-.01em;}
.hero-logo .sub{font-family:var(--serif);font-style:italic;font-size:clamp(15px,1.8vw,20px);
  letter-spacing:.34em;opacity:.62;margin-top:10px;text-transform:lowercase;}
.hero .scroll{color:rgba(20,20,19,.55);}

/* ② intro — composite motion: 3D rings + staged text */
.intro{position:relative;max-width:840px;margin:0 auto;padding:168px 32px 130px;
  text-align:center;overflow:hidden;}
/* geometric helper — three rings, each on its own 3D axis */
.intro .geo{position:absolute;top:46%;left:50%;width:520px;height:520px;transform:translate(-50%,-50%);
  perspective:1100px;opacity:0;transition:opacity 1.2s ease;pointer-events:none;z-index:0;}
.intro.in .geo{opacity:.32;}
.intro .geo .ring{position:absolute;inset:0;margin:auto;border:1px solid var(--ink);border-radius:50%;}
.intro .geo .ring.a{width:520px;height:520px;animation:rA 24s linear infinite;}
.intro .geo .ring.b{width:430px;height:430px;animation:rB 33s linear infinite;}
.intro .geo .ring.c{width:336px;height:336px;animation:rC 28s linear infinite;}
@keyframes rA{from{transform:rotateY(0deg) rotateX(16deg)}to{transform:rotateY(360deg) rotateX(16deg)}}
@keyframes rB{from{transform:rotateX(0deg) rotateZ(62deg)}to{transform:rotateX(360deg) rotateZ(62deg)}}
@keyframes rC{from{transform:rotateY(0deg) rotateX(72deg) rotateZ(26deg)}to{transform:rotateY(360deg) rotateX(72deg) rotateZ(26deg)}}
.intro .intro-content{position:relative;z-index:2;}
/* headline — word-by-word lift */
.intro .hl{font-family:var(--serif);font-weight:500;font-size:clamp(40px,6vw,72px);
  letter-spacing:-.03em;line-height:1.04;}
.intro .hl .w{display:inline-block;overflow:hidden;vertical-align:bottom;padding:0 .04em;}
.intro .hl .w i{display:inline-block;font-style:normal;transform:translateY(112%);
  transition:transform .8s cubic-bezier(.2,.8,.2,1);}
.intro.in .hl .w i{transform:translateY(0);}
/* generic line fade-up */
.intro .ln{opacity:0;transform:translateY(16px);
  transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1);}
.intro.in .ln{opacity:1;transform:none;}
.intro .q{font-family:var(--serif);font-style:italic;font-size:clamp(17px,2.1vw,22px);
  color:var(--muted);margin-top:20px;}
.intro .b{font-family:var(--serif);font-size:clamp(16px,1.7vw,19px);color:#3a3a36;line-height:1.55;
  margin:30px auto 0;max-width:54ch;}
/* the four No-lines slide in one by one */
.intro .nos{margin-top:26px;display:flex;flex-direction:column;gap:6px;align-items:center;}
.intro .nos span{font-family:var(--serif);font-size:clamp(16px,1.7vw,19px);color:#3a3a36;
  opacity:0;transform:translateX(-14px);transition:opacity .6s,transform .6s;}
.intro.in .nos span.on{opacity:1;transform:none;}
/* closing line with rolling last word */
.intro .close{margin-top:34px;font-family:var(--serif);font-weight:500;font-size:clamp(22px,3vw,34px);
  letter-spacing:-.02em;text-align:center;line-height:1.5;}
.intro .roll{position:relative;display:inline-block;height:1.5em;line-height:1.5em;overflow:hidden;
  vertical-align:bottom;text-align:left;min-width:4.5em;}
.intro .roll i{display:block;line-height:1.5em;font-style:normal;
  transition:transform .7s cubic-bezier(.2,.8,.2,1);}

/* ③ products section sits on light bg, head dark text (reuse .section-head) */

/* tools constellation (between products & about) */
.orbs-sec{padding:130px 0 30px;}
.orbs-h{font-family:var(--serif);font-weight:500;font-size:clamp(26px,3.6vw,42px);
  letter-spacing:-.02em;text-align:center;margin-bottom:24px;}
.orbs-stage{position:relative;height:340px;max-width:1160px;margin:0 auto;padding:0 32px;}
.orbs-stage canvas{display:block;width:100%;height:100%;}

/* ④ about — founder note */
.about{padding:90px 0 130px;}
/* full grid width so the block aligns left & right with the rest of the page */
.about-in{display:grid;grid-template-columns:240px 1fr;gap:72px;align-items:start;}
@media(max-width:760px){.about-in{grid-template-columns:1fr;gap:32px;justify-items:start;}}
.about-portrait{position:sticky;top:100px;display:flex;flex-direction:column;align-items:center;gap:14px;}
@media(max-width:760px){.about-portrait{position:static;align-items:flex-start;}}
.about-photo{width:200px;height:200px;border-radius:50%;overflow:hidden;background:var(--soft);
  border:1px solid var(--line);display:grid;place-items:center;
  font-family:var(--serif);font-size:46px;color:var(--muted);}
.about-photo img{width:100%;height:100%;object-fit:cover;}
.about-label{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);}
.about-note{max-width:none;}
.about-note h2{font-family:var(--serif);font-weight:500;font-size:clamp(26px,3.4vw,38px);
  letter-spacing:-.02em;margin-bottom:26px;}
.about-note p{font-family:var(--serif);font-size:clamp(16px,1.5vw,18px);color:#3a3a36;
  line-height:1.62;margin-bottom:18px;text-align:justify;hyphens:auto;}
.about-note p b{color:var(--ink);font-weight:600;}

/* value strip — fixed slogan + cycling benefits (clean mono, between about & footer) */
.strip-sec{padding:160px 0 110px;}                 /* distance from About, sits mid-gap */
.strip-band{text-align:center;}
.strip-band::before{content:"";display:block;width:48px;height:2px;border-radius:2px;margin:0 auto 36px;
  background:linear-gradient(90deg,var(--line) 0 36%,#6b685f 50%,var(--line) 64% 100%);
  background-size:260% 100%;animation:lineSweep 2.8s linear infinite;}
@keyframes lineSweep{0%{background-position:130% 0}100%{background-position:-130% 0}}
.strip-slo{font-family:var(--serif);font-weight:500;font-size:clamp(38px,5vw,58px);
  letter-spacing:-.025em;line-height:1;}
.strip-cyc{position:relative;height:1.5em;margin-top:22px;}
.strip-item{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) translateY(13px);
  white-space:nowrap;opacity:0;filter:blur(7px);
  font-family:var(--serif);font-style:italic;font-weight:400;font-size:clamp(22px,2.6vw,30px);color:#33322e;
  transition:opacity .95s cubic-bezier(.2,.7,.2,1),filter .95s,transform .95s;}
.strip-item.on{opacity:1;filter:blur(0);transform:translate(-50%,-50%) translateY(0);}

/* ⑤ wireframe dome */
.dome-wrap{position:relative;height:900px;margin-top:70px;overflow:hidden;
  background:linear-gradient(to bottom,#ffffff 0%,#d0d0d0 32%,#5e5e5e 60%,#141414 85%,var(--ink) 100%);}
#dome{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:1;}

/* black footer to bookend the black header */
footer.dark{position:absolute;left:0;bottom:0;width:100%;z-index:3;
  background:transparent;color:var(--paper);border-top:none;margin-top:0;padding:0 0 46px;}
footer.dark .foot-col a{color:rgba(255,255,255,.55);}
footer.dark .foot-col a:hover{color:var(--paper);}
footer.dark .foot-brand p{color:rgba(255,255,255,.5);}
footer.dark .logo{color:var(--paper);}
footer.dark .copyright{color:rgba(255,255,255,.4);}
footer.dark .foot-social a{color:var(--paper);}
footer.dark .foot-social a:hover{opacity:.6;}
footer.dark .foot-sub{border-bottom-color:rgba(255,255,255,.13);}
footer.dark .foot-sub-copy p{color:rgba(255,255,255,.5);}
footer.dark .sub-email{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.22);color:var(--paper);}
footer.dark .sub-email::placeholder{color:rgba(255,255,255,.4);}
footer.dark .sub-email:focus{border-color:var(--paper);}
footer.dark .sub-btn{background:var(--paper);color:var(--ink);}

/* ===== print / PDF export — force scroll-reveal + staged animations into their final visible state so all copy renders ===== */
@media print{
  *{ -webkit-print-color-adjust:exact !important; print-color-adjust:exact !important; }
  .reveal{ opacity:1 !important; transform:none !important; }
  .intro .hl .w i{ transform:translateY(0) !important; }
  .intro .ln{ opacity:1 !important; transform:none !important; }
  .intro .nos span{ opacity:1 !important; transform:none !important; }
  .intro .geo{ opacity:0 !important; }
  .mk-script .doc .txt{ clip-path:none !important; animation:none !important; }
  /* stop fixed/sticky layers from repeating & covering copy on every printed page */
  nav, #nav, .pmenu, .pd-menu, .about-portrait{ position:static !important; top:auto !important; }
  #pageOrbs{ display:none !important; }
  .hero-stage{ min-height:0 !important; padding-top:110px !important; }
  /* keep paragraphs / headings / cards from being split or clipped across page breaks */
  p, li, h1, h2, h3, h4, .card, .stp, .ucard, .tile, .crow, .plan, .seg{ break-inside:avoid !important; }
}