/* ============================================================================
   ZILING PACKAGING, v3.1 "Logo Violet" 浅色品牌紫
   Page #FAF9FC · Soft #F6F3FB · Card #FFFFFF · Ink #191423
   Brand violet #6E027E (logo) · Deep violet frame #241539 (topbar/footer)
   Gold #C9A227 accent · Heat #F06414, induction-heating semantics only
   ----------------------------------------------------------------------------
   Remaining hard-coded colours (intentional, semantically required):
   · #000  in mask-image / -webkit-mask → mask alpha (fully opaque), NOT a colour
   · rgba(36,21,57,*)  → violet-900 shadows & hairlines (see --shadow-card/pop)
   · rgba(110,2,126,*) → accent glow / focus ring / hover border (alpha of --accent)
   · rgba(25,20,35,*)  → ink alpha dividers & scrollcue (--ink-3/--ink-4 tokenised)
   · rgba(74,65,88,*)  → ink-2 alpha (ghost borders, leader lines)
   · rgba(236,229,248,*) → on-deep text alpha (topbar / footer on violet-900)
   · rgba(255,255,255,*) → glass-white alpha (nav / cards / chips backdrop)
   · rgba(240,100,20,*)  → heat alpha (induction glow; RGB of --heat #F06414)
   ============================================================================ */

@font-face{
  font-family:"Inter";
  src:url("../fonts/inter-latin-wght-normal.woff2") format("woff2-variations");
  font-weight:100 900;font-style:normal;font-display:swap;
}
@font-face{
  font-family:"Inter";
  src:url("../fonts/inter-latin-400-normal.woff2") format("woff2");
  font-weight:400;font-style:normal;font-display:swap;
}

/* ------------------------------------------------------------------ tokens */
:root{
  --bg:#FAF9FC;          /* page */
  --bg-soft:#F6F3FB;     /* soft violet wash */
  --bg-deep:#241539;     /* topbar / footer, deep brand violet (violet-900) */
  --stage:#F6F3FB;       /* 3D stage, very light violet */
  --mid:#F6F3FB;         /* rhythm level 2 (violet-050) */
  --raise:#FFFFFF;       /* cards / bands */
  --card:#FFFFFF;

  --ink:#191423;         /* primary text */
  --ink-2:#4A4158;       /* secondary text */
  --ink-3:rgba(25,20,35,.52);
  --ink-4:rgba(25,20,35,.36);

  --line:#E6E1EF;
  --line-2:#D9D1E8;

  --silver:#7A7089;      /* metallic accent → muted violet-grey on light */
  --silver-2:#8A8098;

  --accent:#6E027E;      /* logo purple */
  --accent-hi:#8A1BA0;
  --accent-ink:#4A0056;
  --accent-soft:#ECE5F8;
  --violet-050:#F6F3FB;
  --violet-100:#ECE5F8;
  --violet-500:#8A1BA0;
  --violet-600:#680078;
  --violet-700:#4A0056;
  --violet-800:#2F1D4D;
  --violet-900:#241539;

  --gold:#C9A227;
  --gold-soft:#F4ECD2;
  --heat:#F06414;         /* induction-heating semantics only */
  --heat-hi:#FF8A3A;      /* heated layer, bright orange */
  --heat-soft:#FFD7B0;    /* heated layer, pale orange wash */
  --heat-fade:#FFF0E2;    /* heated layer, near-white falloff */
  --success:#1FAA53;      /* WhatsApp / success state */
  --kraft:#C9B489;        /* backing board kraft paper, material tone (NOT brand gold) */
  --kraft-2:#BFA87B;      /* kraft paper shade */
  --wax:#D9942E;          /* release wax amber, material tone */
  --foil:#E8ECF0;         /* aluminium foil silver, material tone */
  --foil-2:#AEB6BF;       /* foil silver shade */
  --lac:#9FB4CD;          /* heat-seal lacquer steel blue, material tone */
  --on-accent:#FFFFFF;    /* white text/icon on violet & deep fills */
  --violet-200:#E2D5F3;   /* mid light-violet, hover deepen */

  --glass:rgba(255,255,255,.72);
  --r-card:8px;           /* card corner radius */
  --r-panel:10px;         /* large panel / stage corner radius */
  --shadow-card:0 1px 2px rgba(36,21,57,.05),0 14px 34px -16px rgba(36,21,57,.14);
  --shadow-pop:0 28px 64px -26px rgba(36,21,57,.24);

  --max:1180px;
  --nav-h:66px;
  --topbar-h:39px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono-num:"Inter","Segoe UI",system-ui,sans-serif; /* + tabular-nums */
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font);font-size:16.5px;line-height:1.65;
  font-feature-settings:"cv05" 1,"ss01" 1;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
h1,h2,h3,h4,p,ul,ol,figure,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--accent-hi);text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
em{font-style:normal}
::selection{background:var(--accent);color:var(--on-accent)}

.skip{position:absolute;left:-9999px;top:0;background:var(--card);color:var(--ink);padding:10px 16px;z-index:99}
.skip:focus{left:8px;top:8px}

.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 28px}
.wrap--wide{max-width:1320px}

section[id]{scroll-margin-top:76px}

/* ------------------------------------------------------------------ type */
.display{
  font-size:clamp(2.6rem,6.2vw,5.2rem);
  line-height:.96;letter-spacing:-.04em;font-weight:650;color:var(--ink);
}
.display__thin{font-weight:200;color:rgba(25,20,35,.4)}
.h2{
  font-size:clamp(1.85rem,3.5vw,3rem);
  line-height:1.06;letter-spacing:-.033em;font-weight:640;color:var(--ink);
}
.eyebrow{
  display:flex;align-items:center;gap:12px;
  font-size:.7rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;
  color:var(--silver-2);margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);flex:none}
.eyebrow--center{justify-content:center}
.lede{color:var(--ink-2);max-width:62ch}
.shead{max-width:820px;margin-bottom:clamp(40px,5vw,64px)}
.shead--center{margin-left:auto;margin-right:auto;text-align:center}
.shead--center .lede{margin-left:auto;margin-right:auto}
.shead .lede{margin-top:20px;font-size:1.05rem}
.tnum,.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ------------------------------------------------------------------ buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--accent);color:var(--on-accent);border-radius:3px;
  padding:14px 24px;font-size:.88rem;font-weight:600;letter-spacing:.01em;
  border:1px solid var(--accent);white-space:nowrap;
  transition:background .25s var(--ease),transform .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease);
  box-shadow:0 8px 24px -10px rgba(110,2,126,.45);
}
.btn:hover{background:var(--accent-ink);border-color:var(--accent-ink);transform:translateY(-1px)}
.btn--sm{padding:10px 18px;font-size:.8rem}
.btn--lg{padding:17px 30px;font-size:.92rem}
.btn--ghost{background:transparent;color:var(--ink);border-color:rgba(74,65,88,.35);box-shadow:none}
.btn--ghost:hover{background:rgba(110,2,126,.06);border-color:rgba(110,2,126,.5);color:var(--accent-ink)}
.text-link{font-weight:650;font-size:.95rem;color:var(--accent-hi)}
.text-link:hover{text-decoration:underline}

.chip{
  display:inline-block;padding:5px 12px;border:1px solid var(--line-2);border-radius:999px;
  font-size:.74rem;font-weight:600;color:var(--ink-2);background:var(--card);
  font-variant-numeric:tabular-nums;
}
/* keep "µm" readable inside uppercase HUD labels (µ → Μ under transform) */
.uc-off{text-transform:none;letter-spacing:inherit}

/* reveal-on-scroll (transform/opacity only, INP safe) */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.is-in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}.rv-d4{transition-delay:.32s}.rv-d5{transition-delay:.4s}

/* ============================================================================
   S0 · TOPBAR
   ============================================================================ */
.topbar{
  position:fixed;inset:0 0 auto 0;z-index:61;
  background:var(--bg-deep);color:rgba(236,229,248,.6);font-size:.78rem;border-bottom:1px solid rgba(255,255,255,.08);
  transition:transform .35s var(--ease);
}
body.is-scrolled .topbar{transform:translateY(-100%)}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar a{color:rgba(236,229,248,.78);display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.topbar a:hover{color:var(--on-accent)}
.topbar .sep{opacity:.3;margin:0 10px}
.topbar svg{width:13px;height:13px;fill:currentColor}
.tb-right{display:inline-flex;align-items:center;gap:4px}
.tb-right .lang{color:rgba(236,229,248,.78);font-weight:600;letter-spacing:.04em;text-transform:uppercase;padding:0 2px}
.tb-right .lang:hover{color:var(--on-accent)}
.tb-right .lang[aria-current="true"]{color:var(--on-accent)}
.tb-right .lang[dir="rtl"]{text-transform:none}

/* ============================================================================
   NAV
   ============================================================================ */
.nav{
  position:fixed;inset:var(--topbar-h) 0 auto 0;z-index:60;height:var(--nav-h);
  color:var(--ink);
  transition:background .35s var(--ease),border-color .35s var(--ease),backdrop-filter .35s,top .35s var(--ease);
  border-bottom:1px solid transparent;
}
body.is-scrolled .nav{top:0}
.nav.is-scrolled,.nav.is-open{
  background:rgba(250,249,252,.86);
  backdrop-filter:blur(16px) saturate(160%);-webkit-backdrop-filter:blur(16px) saturate(160%);
  border-bottom-color:var(--line);
}
.nav__inner{max-width:1320px;margin:0 auto;padding:0 28px;height:100%;display:flex;align-items:center;gap:30px}
.brand{display:flex;align-items:center;gap:11px;margin-right:auto;color:var(--ink)}
.brand__logo{height:30px;width:auto;flex:none;display:block}
.brand__name{display:flex;flex-direction:column;font-size:.9rem;font-weight:700;letter-spacing:.14em;line-height:1.15;color:var(--ink)}
.brand__name em{font-size:.56rem;font-weight:500;letter-spacing:.12em;color:var(--accent);text-transform:uppercase;margin-top:2px}
.nav__links{display:flex;gap:26px;font-size:.84rem;font-weight:550;height:100%;align-items:center}
.nav__links a{opacity:.75;position:relative;padding:6px 0;color:var(--ink);display:inline-flex;align-items:center;gap:6px;transition:opacity .2s}
.nav__links a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent-hi);transition:width .3s var(--ease)}
.nav__links a:hover,.nav__links a[aria-current="page"]{opacity:1}
.nav__links a:hover::after,.nav__links a[aria-current="page"]::after{width:100%}
.nav__links .caret{width:9px;height:9px;stroke:currentColor;stroke-width:2.4;fill:none;transition:transform .2s}

/* products dropdown */
.has-drop{position:relative}
.has-drop:hover .caret,.has-drop:focus-within .caret{transform:rotate(180deg)}
.drop{
  position:absolute;top:calc(100% + 14px);left:50%;transform:translate(-50%,8px);
  width:620px;padding:14px;display:grid;grid-template-columns:1fr 1fr;gap:8px;
  background:rgba(255,255,255,.97);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-pop);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
/* 填补浮窗与导航链接间的 14px 间隙，扩大 hover 热区，防止鼠标下移时浮窗消失 */
.drop::before{
  content:"";position:absolute;left:0;right:0;top:-14px;height:14px;
}
.has-drop:hover .drop,.has-drop:focus-within .drop{opacity:1;visibility:visible;transform:translate(-50%,0);pointer-events:auto}
.drop__item{display:block;padding:13px 14px;border:1px solid transparent;border-radius:5px;transition:border-color .18s,background .18s}
.drop__item:hover{border-color:rgba(110,2,126,.35);background:var(--accent-soft)}
.drop__item b{display:block;font-size:.86rem;color:var(--ink);letter-spacing:-.01em}
.drop__item span{display:block;font-size:.72rem;color:var(--ink-3);line-height:1.45;margin-top:3px}
.drop__all{grid-column:1/-1;padding:10px 14px;font-size:.8rem;font-weight:600;color:var(--accent-hi);border-top:1px solid var(--line)}

.nav__burger{display:none;width:36px;height:36px;position:relative;flex:none}
.nav__burger span{position:absolute;left:8px;right:8px;height:1.5px;background:currentColor;transition:.3s var(--ease)}
.nav__burger span:first-child{top:14px}
.nav__burger span:last-child{top:21px}
.nav__burger[aria-expanded="true"] span:first-child{top:17px;transform:rotate(45deg)}
.nav__burger[aria-expanded="true"] span:last-child{top:17px;transform:rotate(-45deg)}

/* mobile drawer */
.nav__drawer{
  display:none;position:fixed;left:0;right:0;top:calc(var(--nav-h) + var(--topbar-h));bottom:0;z-index:55;
  background:rgba(250,249,252,.98);backdrop-filter:blur(18px);
  padding:18px 24px 110px;overflow-y:auto;
  transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav.is-open .nav__drawer{transform:none;opacity:1;pointer-events:auto}
.nav__drawer a.dlink{display:block;padding:15px 4px;font-size:1.05rem;font-weight:650;color:var(--ink);border-bottom:1px solid var(--line)}
.nav__drawer details{border-bottom:1px solid var(--line)}
.nav__drawer summary{list-style:none;display:flex;justify-content:space-between;align-items:center;padding:15px 4px;font-size:1.05rem;font-weight:650;color:var(--ink);cursor:pointer}
.nav__drawer summary::-webkit-details-marker{display:none}
.nav__drawer summary .caret{width:12px;height:12px;stroke:var(--ink-3);stroke-width:2.4;fill:none;transition:transform .2s}
.nav__drawer details[open] summary .caret{transform:rotate(180deg)}
.nav__drawer .sub a{display:block;padding:11px 4px 11px 18px;font-size:.92rem;font-weight:600;color:var(--ink-2)}
.nav__drawer .sub a small{display:block;font-size:.74rem;color:var(--ink-3);font-weight:400;margin-top:2px}
.nav__drawer .dcta{margin-top:22px}
.nav__drawer .dcta .btn{width:100%}

/* ============================================================================
   S1 · HERO, left copy 55% / right 3D stage 45%
   ============================================================================ */
.hero{
  position:relative;overflow:hidden;color:var(--ink);
  background:
    radial-gradient(1100px 620px at 82% -12%,rgba(110,2,126,.08),transparent 60%),
    radial-gradient(900px 520px at -12% 112%,rgba(138,27,160,.07),transparent 55%),
    linear-gradient(180deg,var(--bg-soft),var(--bg) 82%);
  border-bottom:1px solid var(--line);
}
.hero::before{ /* faint engineering grid */
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background:
    linear-gradient(rgba(110,2,126,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(110,2,126,.05) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(80% 70% at 50% 30%,#000 30%,transparent 100%);
}
.hero .wrap{
  position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;
  padding-top:calc(var(--nav-h) + var(--topbar-h) + 66px);padding-bottom:88px;
}
.hero .eyebrow{margin-bottom:20px}
.hero h1{
  color:var(--ink);font-size:clamp(2.3rem,4.3vw,3.9rem);font-weight:680;letter-spacing:-.03em;line-height:1.04;
  margin:0 0 22px;
}
.hero h1 em{
  color:transparent;
  background:linear-gradient(100deg,var(--accent) 0%,var(--accent-hi) 45%,var(--accent-ink) 100%);
  -webkit-background-clip:text;background-clip:text;
}
.hero .sub{font-size:1.06rem;line-height:1.72;color:var(--ink-2);max-width:560px}
.hero-cta{display:flex;gap:14px;margin:34px 0 14px;flex-wrap:wrap}
.hero-note{font-size:.82rem;color:var(--ink-3)}
.hero-anchors{
  display:grid;grid-template-columns:repeat(4,1fr);gap:8px 28px;margin-top:44px;
  padding-top:26px;border-top:1px solid var(--line);
}
.hero-anchors .a b{display:block;font-size:.98rem;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;font-variant-numeric:tabular-nums}
.hero-anchors .a b .u{color:var(--accent)}
.hero-anchors .a>span{font-size:.74rem;color:var(--ink-3);line-height:1.45;display:block;max-width:150px;margin-top:3px}

/* hero 3D stage card */
.hero__stagecol{min-width:0}
.hero__stage{
  position:relative;height:min(72vh,560px);min-height:420px;
  border:1px solid var(--line-2);border-radius:var(--r-panel);overflow:hidden;
  background:
    radial-gradient(120% 90% at 70% 26%,var(--card) 0%,var(--violet-050) 52%,var(--violet-100) 100%);
  box-shadow:0 34px 80px -38px rgba(36,21,57,.3);
}
.hero__stage canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:pan-y;opacity:0;transition:opacity .9s var(--ease)}
.hero__stage canvas.is-live{opacity:1}
.stage__poster{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:opacity .6s var(--ease);
}
.hero__stage canvas.is-live~.stage__poster,
.stagewrap canvas.is-live~.stage__poster,
.scrolly canvas.is-live~.scrolly__poster{opacity:0;pointer-events:none}

/* HUD corner brackets on stage cards */
.hudframe::before,.hudframe::after,
.hudframe>em::before,.hudframe>em::after{
  content:"";position:absolute;width:14px;height:14px;pointer-events:none;z-index:3;
  border:0 solid rgba(110,2,126,.35);
}
.hudframe::before{left:10px;top:10px;border-left-width:1px;border-top-width:1px}
.hudframe::after{right:10px;top:10px;border-right-width:1px;border-top-width:1px}
.hudframe>em::before{left:10px;bottom:10px;border-left-width:1px;border-bottom-width:1px}
.hudframe>em::after{right:10px;bottom:10px;border-right-width:1px;border-bottom-width:1px}

.stage__hud{
  position:absolute;left:20px;bottom:16px;z-index:4;display:flex;align-items:center;gap:10px;
  font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-3);font-variant-numeric:tabular-nums;pointer-events:none;
}
.hud__dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(110,2,126,.16);flex:none}
.hud__label{color:var(--ink);font-weight:600}
.hud__sep{opacity:.3}

.stage__meta{
  position:absolute;right:20px;top:16px;z-index:4;text-align:right;pointer-events:none;
  font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-4);
  font-variant-numeric:tabular-nums;line-height:1.9;
}
.hero__linkrow{display:flex;justify-content:flex-end;margin-top:16px}
.hero__inside{
  font-size:.84rem;font-weight:650;color:var(--accent-hi);display:inline-flex;align-items:center;gap:8px;
}
.hero__inside:hover{text-decoration:underline}

/* tap-to-load (mobile degraded + fallback activation) */
.load3d{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:5;
  display:inline-flex;align-items:center;gap:10px;white-space:nowrap;
  background:rgba(110,2,126,.94);color:var(--on-accent);border-radius:3px;padding:13px 22px;
  font-size:.84rem;font-weight:650;box-shadow:0 16px 42px -14px rgba(110,2,126,.55);
}
.load3d:hover{background:var(--accent-ink)}
.load3d svg{width:15px;height:15px;fill:currentColor}
.load3d[hidden]{display:none}/* beat display:inline-flex over the UA [hidden] rule */

/* ============================================================================
   S2 · TRUST BAND
   ============================================================================ */
.trust{border-bottom:1px solid var(--line);background:var(--bg)}
.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding-top:52px;padding-bottom:52px}
.trust .item{padding:0 26px;border-left:1px solid var(--line)}
.trust .item:first-child{border-left:none;padding-left:0}
.trust .n{
  font-size:clamp(2.6rem,4.6vw,3.9rem);font-weight:680;letter-spacing:-.03em;line-height:1;
  color:transparent;background:linear-gradient(100deg,var(--accent),var(--accent-hi) 50%,var(--accent-ink));
  -webkit-background-clip:text;background-clip:text;
  font-variant-numeric:tabular-nums;
}
.trust .n small{font-size:.42em;font-weight:700}
.trust .l{margin-top:12px;font-size:.84rem;color:var(--ink-3);line-height:1.5;max-width:220px}

/* ============================================================================
   generic dark section
   ============================================================================ */
.section{padding:clamp(84px,9vw,138px) 0;position:relative}
.section--mid{background:var(--mid);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--stage{background:var(--stage);position:relative;overflow:hidden}
.section--stage::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(90% 55% at 50% 0%,rgba(110,2,126,.06),transparent 70%);
}
.section--stage>.wrap{position:relative;z-index:1}

/* glass card */
.gcard{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}

/* HUD corner brackets (small) for cards */
.brackets{position:relative}
.brackets::before,.brackets::after{content:"";position:absolute;width:11px;height:11px;pointer-events:none;border:0 solid rgba(110,2,126,.3)}
.brackets::before{left:-1px;top:-1px;border-left-width:1px;border-top-width:1px}
.brackets::after{right:-1px;bottom:-1px;border-right-width:1px;border-bottom-width:1px}

/* ============================================================================
   S3 · PROBLEMS
   ============================================================================ */
.prob-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.prob{
  position:relative;padding:30px 30px 28px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.prob:hover{transform:translateY(-3px);border-color:var(--line-2);background:var(--card)}
.prob .ic{
  width:44px;height:44px;border-radius:9px;background:var(--accent-soft);border:1px solid rgba(110,2,126,.25);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.prob .ic svg{width:22px;height:22px;stroke:var(--accent);stroke-width:1.9;fill:none;stroke-linecap:round;stroke-linejoin:round}
.prob h3{color:var(--ink);font-size:1.08rem;font-weight:640;letter-spacing:-.015em;margin-bottom:9px}
.prob p{font-size:.9rem;color:var(--ink-2)}
.prob .fix{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line-2);font-size:.85rem;color:var(--ink-2)}
.prob .fix b{color:var(--ink)}
.sec-foot{margin-top:38px;text-align:center}
.sec-foot--left{text-align:left}

/* ============================================================================
   S4 · PRODUCT FAMILIES
   ============================================================================ */
.fam-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.fam{
  grid-column:span 3;display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.fam:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow-pop)}
.fam--feature{grid-column:span 12;flex-direction:row;border-color:rgba(110,2,126,.28);position:relative}
.fam--feature::before{ /* brand-violet gradient hairline on the core family */
  content:"";position:absolute;inset:0;border-radius:var(--r-card);padding:1px;pointer-events:none;
  background:linear-gradient(120deg,rgba(110,2,126,.55),rgba(110,2,126,.08) 40%,rgba(138,27,160,.4));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
}
.fam__media{
  position:relative;overflow:hidden;
  background:
    radial-gradient(90% 70% at 50% 88%,rgba(110,2,126,.1),transparent 62%),
    radial-gradient(120% 100% at 50% 0%,var(--card) 0%,var(--violet-100) 70%);
  border-bottom:1px solid var(--line);
}
.fam__media img{
  width:100%;height:190px;object-fit:cover;opacity:.96;
  filter:saturate(.94) contrast(1.02);
  transition:transform .5s var(--ease);
}
.fam:hover .fam__media img{transform:scale(1.03)}
.fam--feature .fam__media{flex:0 0 44%;min-height:300px;border-bottom:0;border-right:1px solid var(--line)}
.fam--feature .fam__media img{position:absolute;inset:0;width:100%;height:100%;min-height:0} /* absolute: lazy-load must not stretch the card (CLS) */
.fam__media::after{ /* HUD diameter corner marks */
  content:"Ø";position:absolute;right:12px;bottom:10px;
  font-size:.68rem;letter-spacing:.14em;color:rgba(74,65,88,.55);font-variant-numeric:tabular-nums;
}
.badge{
  position:absolute;top:14px;left:14px;z-index:2;
  font-size:.62rem;font-weight:700;letter-spacing:.16em;
  padding:5px 10px;border-radius:3px;color:var(--ink-2);
  background:rgba(255,255,255,.92);border:1px solid var(--line-2);
  box-shadow:0 2px 10px rgba(36,21,57,.14);backdrop-filter:blur(6px);
}
.badge--core{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}
.fam__body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.fam__body h3{color:var(--ink);font-size:1.14rem;font-weight:640;letter-spacing:-.018em;margin-bottom:9px}
.fam--feature .fam__body h3{font-size:1.5rem}
.fam__body>p{font-size:.88rem;color:var(--ink-2);flex:1}
.fam .chips{display:flex;flex-wrap:wrap;gap:7px;margin:16px 0 18px}
.fam .more{font-size:.88rem;font-weight:650;color:var(--accent-hi)}
.fam .more:hover{text-decoration:underline}

/* ============================================================================
   S4.5 · ANATOMY, full-bleed pinned scrolly
   ============================================================================ */
.scrolly{position:relative;background:var(--stage);color:var(--ink);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.scrolly__pin{
  position:sticky;top:0;height:100vh;height:100svh;z-index:1;overflow:hidden;
  background:radial-gradient(120% 90% at 72% 30%,var(--card) 0%,var(--violet-050) 48%,var(--violet-100) 100%);
}
.scrolly__pin canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:pan-y;opacity:0;transition:opacity .9s var(--ease)}
.scrolly__pin canvas.is-live{opacity:1}
.scrolly__poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.96}
.stage__vignette{
  position:absolute;inset:0;pointer-events:none;z-index:2;
  background:
    radial-gradient(120% 80% at 70% 30%,rgba(110,2,126,.04),transparent 60%),
    linear-gradient(to bottom,rgba(246,243,251,.85),transparent 22%,transparent 74%,rgba(236,229,248,.9));
}
.stage__scale{
  position:absolute;right:34px;bottom:26px;width:210px;z-index:4;
  display:grid;grid-template-columns:1fr auto;gap:6px 8px;align-items:center;
  font-size:.63rem;letter-spacing:.14em;color:var(--ink-4);font-variant-numeric:tabular-nums;
}
.scale__bar{grid-column:1/-1;height:2px;background:rgba(25,20,35,.12);position:relative;overflow:hidden}
.scale__bar i{position:absolute;inset:0 auto 0 0;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-hi));transition:width .3s linear}
.scale__cap--r{text-align:right}
.scale__toggle{
  grid-column:1/-1;justify-self:start;margin-top:12px;
  font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-3);border-bottom:1px solid rgba(25,20,35,.25);
  padding:0 0 4px;transition:color .25s var(--ease),border-color .25s var(--ease);
}
.scale__toggle:hover{color:var(--ink);border-color:rgba(25,20,35,.6)}
.scale__toggle[aria-pressed="true"]{color:var(--accent);border-color:var(--accent)}

/* HUD leader-line annotations */
.stage__leaders{position:absolute;inset:0;z-index:3;pointer-events:none;opacity:0}
.leaders__svg{position:absolute;inset:0}
.leaders__svg line{stroke:rgba(74,65,88,.4);stroke-width:1}
.leaders__svg circle{fill:var(--accent)}
.leader{opacity:.28;transition:opacity .4s var(--ease)}
.leader.is-lit{opacity:1}
.leader.is-lit line{stroke:rgba(74,65,88,.75)}
.leader__chip{
  position:absolute;right:26px;transform:translateY(-50%);
  font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap;
  color:var(--ink-3);background:rgba(255,255,255,.85);border:1px solid var(--line-2);
  padding:7px 11px;border-radius:2px;font-variant-numeric:tabular-nums;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  opacity:.34;transition:opacity .4s var(--ease),color .3s,border-color .3s;
}
.leader__chip::before{
  content:"";display:inline-block;width:5px;height:5px;border-radius:50%;
  background:var(--silver-2);margin-right:8px;vertical-align:1px;transition:background .3s;
}
.leader__chip.is-lit{opacity:1;color:var(--accent-ink);border-color:rgba(110,2,126,.5)}
.leader__chip.is-lit::before{background:var(--accent);box-shadow:0 0 8px rgba(110,2,126,.7)}

/* scrolly track + steps */
.scrolly__track{position:relative;z-index:2;margin-top:-100vh;pointer-events:none}
.step{min-height:100vh;min-height:100svh;display:flex;align-items:center}
.step__inner{width:100%;max-width:1320px;margin:0 auto;padding:0 28px;pointer-events:none}
.step__inner .card,.step__inner .btn,.step__inner a{pointer-events:auto}
.scrolly:not(.is-static) .card{cursor:pointer}/* cards scroll the track to their step */

.step--hero{text-align:center;justify-content:center}
.step--hero .step__inner{max-width:920px}
.step--hero .display{margin:0 0 26px}
.step--hero .lede{margin:0 auto;color:var(--ink-2);font-size:1.06rem;max-width:56ch}
.step__meta{
  display:flex;justify-content:center;flex-wrap:wrap;gap:8px 26px;margin-top:34px;
  font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.step__meta span{position:relative}
.step__meta span+span::before{content:"";position:absolute;left:-14px;top:50%;width:3px;height:3px;border-radius:50%;background:var(--ink-4)}
.scrollcue{
  margin-top:52px;display:inline-flex;align-items:center;gap:12px;
  font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);
  transition:opacity .5s var(--ease);
}
.scrollcue span{width:1px;height:38px;background:linear-gradient(rgba(25,20,35,.5),transparent);animation:cue 2.4s var(--ease) infinite}
@keyframes cue{0%,100%{transform:scaleY(.35);opacity:.4}50%{transform:scaleY(1);opacity:1}}
.step--hero:not(.is-on) .scrollcue{opacity:0}

/* anatomy scripted-tour autoplay control (always visible in live mode) */
.stage__play{
  position:absolute;left:20px;top:16px;z-index:5;
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(110,2,126,.94);color:var(--on-accent);border-radius:999px;padding:9px 18px 9px 10px;
  font-size:.7rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;white-space:nowrap;
  box-shadow:0 14px 34px -12px rgba(110,2,126,.5);
  transition:background .25s var(--ease),transform .25s var(--ease),opacity .4s var(--ease);
}
.stage__play:hover{background:var(--accent-ink);transform:translateY(-1px)}
.stage__play .ic{
  width:22px;height:22px;border-radius:50%;flex:none;
  background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;
}
.stage__play svg{width:9px;height:9px;fill:currentColor;display:block}
.stage__play[hidden]{display:none}
.stage__play.is-playing .ic{background:var(--card);color:var(--accent)}
.stage__play.is-playing{box-shadow:0 0 0 3px rgba(110,2,126,.22),0 14px 34px -12px rgba(110,2,126,.5)}
.scrolly.is-static .stage__play{display:none}

.step__inner--side{display:flex}
.card{
  width:min(430px,100%);padding:32px 34px;border-radius:var(--r-card);
  background:rgba(255,255,255,.86);border:1px solid var(--line-2);
  backdrop-filter:blur(18px) saturate(150%);-webkit-backdrop-filter:blur(18px) saturate(150%);
  box-shadow:var(--shadow-pop);
  opacity:0;transform:translateY(22px);transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.step.is-on .card{opacity:1;transform:none}
.card__num{font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:16px;font-variant-numeric:tabular-nums}
.card__num span{color:var(--ink-4)}
.card__title{font-size:1.7rem;letter-spacing:-.028em;font-weight:640;line-height:1.1;margin-bottom:12px;color:var(--ink)}
.card__spec{
  font-size:.72rem;letter-spacing:.06em;color:var(--accent-ink);
  padding-bottom:16px;margin-bottom:16px;border-bottom:1px solid var(--line);
  font-variant-numeric:tabular-nums;
}
.card__body{font-size:.92rem;line-height:1.68;color:var(--ink-2)}
.card--summary .facts{margin:22px 0 26px;display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}
.card--summary .facts li{display:flex;justify-content:space-between;gap:16px;padding:11px 14px;background:var(--card);font-size:.82rem}
.card--summary .facts span{color:var(--ink-3)}
.card--summary .facts b{font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}
.card .btn{margin-top:4px}

/* static fallback (no JS / reduced motion / no WebGL) */
.scrolly.is-static .scrolly__pin{position:relative;height:auto;min-height:0}
.scrolly.is-static .scrolly__pin canvas{display:none}
.scrolly.is-static .scrolly__poster{position:relative;height:auto;aspect-ratio:16/9;object-fit:cover;opacity:1}
.scrolly.is-static .stage__hud,.scrolly.is-static .stage__scale,.scrolly.is-static .stage__leaders,.scrolly.is-static .scrollcue{display:none}
.scrolly.is-static .scrolly__track{margin-top:0}
.scrolly.is-static .step{min-height:0;padding:8vh 0}
.scrolly.is-static .card{opacity:1;transform:none;margin:0 auto}
.scrolly.is-static .step--hero .step__inner{text-align:center}
.no-webgl .stage,.no-webgl canvas{display:none}

/* ============================================================================
   HOW IT SEALS, CSS stackviz (light)
   ============================================================================ */
.seal{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);gap:clamp(40px,5vw,84px);align-items:start}
.seal__viz{position:relative;padding:26px 0 10px}
.coil{position:relative;height:96px;display:grid;place-items:center;margin-bottom:6px}
.coil__ring{
  position:absolute;width:132px;height:38px;border-radius:50%;
  border:2px solid var(--line-2);border-bottom-color:var(--silver-2);
  box-shadow:0 6px 14px -8px rgba(36,21,57,.28),inset 0 1px 0 rgba(255,255,255,.7);
  animation:coilpulse 4.2s var(--ease) infinite;
}
.coil__ring:nth-child(1){transform:translateY(-14px)}
.coil__ring:nth-child(2){transform:translateY(2px);animation-delay:.15s;opacity:.85}
.coil__ring:nth-child(3){transform:translateY(18px);animation-delay:.3s;opacity:.65}
@keyframes coilpulse{0%,100%{filter:none}50%{filter:drop-shadow(0 0 10px rgba(110,2,126,.4))}}
.coil__field{
  position:absolute;bottom:-112px;width:9px;height:112px;
  background:repeating-linear-gradient(180deg,rgba(110,2,126,.4) 0 6px,transparent 6px 16px);
  animation:fieldflow 1.1s linear infinite;opacity:.6;
}
@keyframes fieldflow{to{transform:translateY(14px)}}

.stackviz{position:relative;padding-top:8px}
.stackviz__cap{font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3);text-align:center;margin-bottom:26px}
.stackviz__lid{
  position:relative;width:230px;margin:0 auto;border-radius:6px 6px 0 0;
  background:linear-gradient(var(--card),var(--violet-100));
  border:1px solid var(--line-2);border-bottom:0;padding:14px 14px 0;
  box-shadow:0 18px 40px -26px rgba(36,21,57,.3);
}
.lid__label{position:absolute;right:12px;top:8px;font-size:.58rem;letter-spacing:.16em;text-transform:uppercase;color:var(--silver-2)}
.lid__liner{position:relative;height:26px;border-radius:2px;overflow:hidden;background:var(--violet-100)}
.lid__liner .l{position:absolute;left:0;right:0;display:block;transition:transform .5s var(--ease),filter .5s}
.l--back{top:0;height:12px;background:repeating-linear-gradient(90deg,var(--kraft),var(--kraft) 3px,var(--kraft-2) 3px,var(--kraft-2) 6px)}
.l--wax{top:12px;height:4px;background:var(--wax)}
.l--foil{top:16px;height:6px;background:linear-gradient(90deg,var(--foil),var(--foil-2) 30%,var(--foil) 52%,var(--foil-2) 78%,var(--foil))}
.l--lac{top:22px;height:4px;background:var(--lac)}
.stackviz__bottle{width:250px;margin:0 auto;position:relative}
.bottle__lip{
  display:block;height:16px;border-radius:0 0 4px 4px;
  background:linear-gradient(var(--card),var(--violet-100));border:1px solid var(--line-2);border-top:0;
}
.bottle__label{display:block;text-align:center;margin-top:10px;font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.stackviz__glow{
  position:absolute;left:50%;top:206px;width:320px;height:150px;transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(240,100,20,.42),transparent 72%);
  opacity:0;transition:opacity .6s var(--ease);pointer-events:none;
}
.legend{display:flex;flex-wrap:wrap;gap:6px 20px;justify-content:center;margin-top:38px;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
.legend li{display:flex;align-items:center;gap:8px}
.sw{width:12px;height:12px;border-radius:1px;display:block;transition:box-shadow .4s var(--ease)}
.sw--back{background:var(--kraft)}.sw--wax{background:var(--wax)}.sw--foil{background:linear-gradient(135deg,var(--foil),var(--foil-2))}.sw--lac{background:var(--lac)}

.seal[data-phase="0"] .sw--foil,
.seal[data-phase="1"] .sw--foil,
.seal[data-phase="2"] .sw--foil{box-shadow:0 0 0 3px rgba(110,2,126,.2)}
.seal[data-phase="2"] .l--foil{filter:drop-shadow(0 0 6px rgba(240,100,20,.95));background:linear-gradient(90deg,var(--heat-soft),var(--heat),var(--heat-fade),var(--heat-hi))}
.seal[data-phase="2"] .stackviz__glow{opacity:1}
.seal[data-phase="2"] .l--wax{transform:translateY(-3px);opacity:.35}
.seal[data-phase="3"] .stackviz__glow{opacity:.72}
.seal[data-phase="3"] .l--lac{background:linear-gradient(90deg,var(--heat-hi),var(--heat))}
.seal[data-phase="3"] .l--foil,
.seal[data-phase="4"] .l--foil{background:linear-gradient(90deg,var(--heat-soft),var(--heat),var(--heat-fade),var(--heat-hi));filter:drop-shadow(0 0 5px rgba(240,100,20,.7))}
.seal[data-phase="4"] .stackviz__glow{opacity:.35}
.seal[data-phase="4"] .l--lac{background:linear-gradient(90deg,var(--heat),var(--heat-soft))}

.seal__steps{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:5px;overflow:hidden;counter-reset:sstep}
.sstep{padding:20px 24px;background:var(--card);position:relative;transition:background .35s var(--ease);cursor:pointer}
.sstep::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--accent);
  transform:scaleY(0);transform-origin:top;transition:transform .45s var(--ease);
}
.sstep.is-on{background:var(--accent-soft)}
.sstep.is-on::before{transform:scaleY(1)}
.sstep h3{font-size:.98rem;font-weight:640;letter-spacing:-.01em;margin-bottom:6px;color:var(--ink)}
.sstep h3::before{counter-increment:sstep;content:counter(sstep,decimal-leading-zero);margin-right:12px;font-size:.72rem;color:var(--accent-hi);font-variant-numeric:tabular-nums}
.sstep p{font-size:.86rem;color:var(--ink-2);line-height:1.6}
.sstep.is-done h3{color:var(--ink-2)}

/* ============================================================================
   S5 · FACTORY, evidence cards (浅色实拍六条: 白卡 + 细线边框 + 柔和阴影)
   ============================================================================ */
.factory .cols{display:grid;grid-template-columns:1.02fr .98fr;gap:60px;align-items:center}
.factory .lead{margin:16px 0 30px;color:var(--ink-2);font-size:1rem;max-width:520px}
.fact-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:30px;max-width:520px}
.fstat{
  position:relative;overflow:hidden;padding:20px 22px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.fstat::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--accent),var(--accent-hi))}
.fstat .n{font-size:1.9rem;font-weight:680;letter-spacing:-.025em;line-height:1.1;color:var(--ink);font-variant-numeric:tabular-nums}
.fstat .n .u{color:var(--accent-hi)}
.fstat .l{font-size:.76rem;color:var(--ink-3);margin-top:6px;line-height:1.45}
.iso-note{font-size:.84rem;color:var(--ink-2);margin-bottom:26px;display:flex;align-items:center;gap:8px}
.iso-note svg{width:15px;height:15px;stroke:var(--accent-hi);stroke-width:2.4;fill:none;stroke-linecap:round;stroke-linejoin:round;flex:none}
.factory-ctas{display:flex;gap:14px;flex-wrap:wrap;align-items:center}

/* evidence card: photo as instrument plate (浅色等效) */
.evcard{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line-2);background:var(--raise);
  box-shadow:var(--shadow-card);
}
.evcard__media{position:relative;aspect-ratio:3/2;overflow:hidden}
.evcard__media img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.92) contrast(1.02); /* 浅色下保真 */
}
.evcard__media::before{ /* vignette + bottom fade into the card */
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(120% 90% at 50% 32%,transparent 52%,rgba(36,21,57,.14) 100%),
    linear-gradient(to bottom,transparent 56%,rgba(250,249,252,.95) 100%);
}
.evcard__media::after{ /* corner brackets */
  content:"";position:absolute;inset:10px;z-index:2;pointer-events:none;
  border:1px solid rgba(110,2,126,.28);
  clip-path:polygon(0 0,16px 0,16px 1px,1px 1px,1px 16px,0 16px,
    0 100%,16px 100%,16px calc(100% - 1px),1px calc(100% - 1px),1px calc(100% - 16px),0 calc(100% - 16px),
    100% 100%,calc(100% - 16px) 100%,calc(100% - 16px) calc(100% - 1px),calc(100% - 1px) calc(100% - 1px),calc(100% - 1px) calc(100% - 16px),100% calc(100% - 16px),
    100% 0,calc(100% - 16px) 0,calc(100% - 16px) 1px,calc(100% - 1px) 1px,calc(100% - 1px) 16px,100% 16px);
}
.evcard__tag{
  position:absolute;left:14px;top:12px;z-index:3;
  font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-ink);
  background:rgba(255,255,255,.82);border:1px solid var(--line-2);padding:5px 9px;border-radius:2px;
  font-variant-numeric:tabular-nums;backdrop-filter:blur(6px);
}
.evcard__num{
  position:absolute;right:16px;bottom:8px;z-index:3;
  font-size:clamp(2.4rem,4vw,3.6rem);font-weight:680;letter-spacing:-.03em;line-height:1;
  color:var(--ink);font-variant-numeric:tabular-nums;
  text-shadow:0 1px 0 rgba(255,255,255,.6);
}
.evcard__num small{font-size:.36em;font-weight:600;color:var(--accent)}
.evcard figcaption.cap{
  padding:11px 15px;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);
  border-top:1px solid var(--line);font-variant-numeric:tabular-nums;
}
.factory-imgs{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.factory-imgs .tall{grid-row:span 2}
.factory-imgs .tall .evcard__media{aspect-ratio:auto;height:100%}
/* 结构剖面图板块（产品页） */
.structure-card{
  margin-top:clamp(40px,5vw,64px);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-panel);
  box-shadow:var(--shadow);overflow:hidden;
}
.structure-card__media{padding:clamp(20px,3vw,36px);background:var(--bg)}
.structure-card__media img{width:100%;height:auto;display:block;border-radius:var(--r-card)}
.structure-card__foot{padding:20px 24px 24px;border-top:1px solid var(--line)}
.structure-card__foot p{color:var(--ink-2);font-size:.95rem;line-height:1.6;max-width:72ch}
/* 3D stage variant（easy-open 拉耳渲染图） */
.structure-card__stage{
  position:relative;aspect-ratio:16/9;overflow:hidden;padding:0;
  background:
    radial-gradient(120% 90% at 70% 26%,var(--card) 0%,var(--violet-050) 52%,var(--violet-100) 100%);
}
.structure-card__stage canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:pan-y;opacity:0;transition:opacity .9s var(--ease)}
.structure-card__stage canvas.is-live{opacity:1}
.structure-card__stage .stage__poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:opacity .6s var(--ease)}
.structure-card__stage canvas.is-live~.stage__poster{opacity:0;pointer-events:none}
.structure-card__stage .load3d{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:4}
.guide-chip{
  display:inline-flex;align-items:center;gap:10px;margin-top:26px;
  padding:12px 18px;border:1px solid rgba(110,2,126,.4);border-radius:4px;
  background:var(--accent-soft);color:var(--accent-ink);font-size:.88rem;font-weight:640;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.guide-chip:hover{background:var(--violet-200);border-color:rgba(110,2,126,.65)}
.guide-chip .arr{color:var(--accent-hi)}

/* ============================================================================
   S6 · QUALITY PILLARS
   ============================================================================ */
.quality .cols{display:grid;grid-template-columns:.95fr 1.05fr;gap:60px;align-items:center}
.pillars{display:flex;flex-direction:column;gap:6px;margin-top:28px}
.pillar{display:flex;gap:18px;padding:22px 4px;border-bottom:1px solid var(--line)}
.pillar:last-child{border-bottom:none}
.pillar .num{
  flex:none;width:40px;height:40px;border-radius:9px;background:var(--accent-soft);
  border:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.86rem;color:var(--accent);font-variant-numeric:tabular-nums;
}
.pillar h3{color:var(--ink);font-size:1.05rem;font-weight:640;margin-bottom:6px}
.pillar p{font-size:.89rem;color:var(--ink-2)}

/* ============================================================================
   S7 · DIAMETER RULER, HUD instrument
   ============================================================================ */
.ruler-card{
  border:1px solid var(--line-2);border-radius:var(--r-panel);
  background:
    radial-gradient(80% 120% at 50% -20%,rgba(110,2,126,.06),transparent 60%),
    var(--raise);
  box-shadow:var(--shadow-pop);
  padding:clamp(26px,4vw,46px);overflow:hidden;
}
.ruler-card svg{width:100%;height:auto;display:block}
.fit-chips{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin-top:30px}
.fit-points{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px;text-align:center}
.fit-points .fp b{display:block;font-size:1rem;letter-spacing:-.01em;color:var(--ink)}
.fit-points .fp span{font-size:.82rem;color:var(--ink-3)}

/* ============================================================================
   S8 · INDUSTRIES
   ============================================================================ */
.ind-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.ind{
  display:block;border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);
  padding:26px 20px;text-align:center;box-shadow:var(--shadow-card);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.ind:hover{transform:translateY(-4px);border-color:rgba(110,2,126,.4);background:var(--accent-soft)}
.ind .ic{
  width:52px;height:52px;margin:0 auto 16px;border-radius:12px;
  background:var(--accent-soft);border:1px solid rgba(110,2,126,.24);
  display:flex;align-items:center;justify-content:center;
}
.ind .ic svg{width:25px;height:25px;stroke:var(--accent);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.ind h3{font-size:.92rem;color:var(--ink);font-weight:640;margin-bottom:7px}
.ind p{font-size:.76rem;color:var(--ink-3);line-height:1.5}

/* ============================================================================
   S9 · PROCESS, 5 steps timeline
   ============================================================================ */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;margin-top:8px}
.steps::before{
  content:"";position:absolute;top:23px;left:8%;right:8%;height:1px;
  background:repeating-linear-gradient(90deg,var(--line-2) 0 8px,transparent 8px 16px);
}
.steps .step2{padding:0 14px;text-align:center;position:relative}
.steps .dot{
  width:46px;height:46px;border-radius:50%;background:var(--raise);border:1px solid var(--line-2);
  margin:0 auto 18px;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.9rem;color:var(--accent-hi);position:relative;z-index:1;
  font-variant-numeric:tabular-nums;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),color .25s var(--ease),background .25s var(--ease);
}
.steps .step2:hover .dot{background:var(--accent);border-color:var(--accent);color:var(--on-accent);box-shadow:0 0 26px rgba(110,2,126,.35)}
.steps h3{font-size:.95rem;color:var(--ink);font-weight:640;margin-bottom:8px}
.steps p{font-size:.8rem;color:var(--ink-3);line-height:1.55}
.steps p b{color:var(--ink)}

/* ============================================================================
   S10 · PROMISES
   ============================================================================ */
.promise-band{
  display:block;border-radius:var(--r-panel);overflow:hidden;
  background:var(--raise);border:1px solid var(--line-2);
  border-left:2px solid var(--accent);
  transition:box-shadow .25s var(--ease),transform .25s var(--ease),border-color .25s var(--ease);
}
.promise-band:hover{box-shadow:var(--shadow-pop);transform:translateY(-3px);border-color:rgba(110,2,126,.35)}
.promise-inner{display:grid;grid-template-columns:repeat(3,1fr)}
.pr-item{display:flex;gap:16px;padding:30px;align-items:flex-start}
.pr-item+.pr-item{border-left:1px solid var(--line)}
.pr-ico{
  flex:none;width:44px;height:44px;border-radius:10px;background:var(--accent-soft);border:1px solid rgba(110,2,126,.26);
  display:flex;align-items:center;justify-content:center;
}
.pr-ico svg{width:21px;height:21px;stroke:var(--accent);stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.pr-item b{display:block;font-size:.98rem;letter-spacing:-.01em;color:var(--ink)}
.pr-item small{display:block;font-size:.8rem;color:var(--ink-2);line-height:1.55;margin-top:5px}
.pr-item .arr{margin-left:auto;align-self:center;color:var(--accent-hi);font-size:1.1rem;flex:none}

/* ============================================================================
   S11 · FAQ
   ============================================================================ */
.faq-list{max-width:820px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-card)}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-weight:640;font-size:.98rem;letter-spacing:-.01em;
  display:flex;justify-content:space-between;align-items:center;gap:16px;color:var(--ink);
  transition:background .25s var(--ease);
}
.faq summary:hover{background:var(--violet-050)}
.faq summary::-webkit-details-marker{display:none}
.faq .pm{
  flex:none;width:26px;height:26px;border-radius:7px;border:1px solid var(--line-2);background:var(--accent-soft);
  display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.9rem;color:var(--accent);
  transition:transform .2s;
}
.faq details[open] .pm{transform:rotate(45deg)}
.faq .ans{padding:0 24px 22px;font-size:.9rem;color:var(--ink-2);max-width:700px}
.faq .ans b{color:var(--ink)}

/* ============================================================================
   S12 · FINAL CTA BAND
   ============================================================================ */
.cta-band{
  position:relative;overflow:hidden;color:var(--ink);padding:clamp(76px,9vw,118px) 0;
  background:
    radial-gradient(900px 400px at 85% 0%,rgba(110,2,126,.07),transparent 55%),
    radial-gradient(700px 380px at 0% 110%,rgba(138,27,160,.08),transparent 55%),
    var(--bg-soft);
  border-top:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background:
    linear-gradient(rgba(110,2,126,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(110,2,126,.04) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 80% at 50% 50%,#000 20%,transparent 100%);
}
.cta-band .wrap{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:50px;align-items:center}
.cta-band h2{color:var(--ink);font-size:clamp(1.7rem,3.2vw,2.6rem);letter-spacing:-.028em;font-weight:680;line-height:1.12}
.cta-band p{margin-top:16px;font-size:1rem;color:var(--ink-2);max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.cta-actions .btn{width:100%}
.cta-actions .mailto{text-align:center;font-size:.9rem;font-weight:650;color:var(--accent-ink);padding:6px;font-variant-numeric:tabular-nums}
.cta-actions .mailto:hover{color:var(--accent);text-decoration:underline}
.cta-actions .wa-line{display:flex;align-items:center;justify-content:center;gap:8px;font-size:.82rem;color:var(--ink-3)}
.cta-actions .wa-line a{color:var(--accent-hi);font-weight:650;display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.cta-actions .wa-line svg{width:15px;height:15px;fill:currentColor}

/* ============================================================================
   S13 · FOOTER
   ============================================================================ */
footer{background:var(--violet-900);color:rgba(236,229,248,.62);font-size:.86rem;border-top:1px solid var(--line)}
.foot-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:44px;padding:66px 0 50px}
.foot-brand .brand{margin-bottom:18px;color:var(--on-accent)}
footer .brand__name{color:var(--on-accent)}
footer .brand__name em{color:rgba(236,229,248,.55)}
.foot-brand p{max-width:300px;line-height:1.7;font-size:.82rem}
footer h4{color:var(--on-accent);font-size:.74rem;font-weight:650;letter-spacing:.14em;text-transform:uppercase;margin-bottom:18px}
footer ul li{margin-bottom:11px}
footer ul a{color:rgba(236,229,248,.62)}
footer ul a:hover{color:var(--on-accent)}
.foot-contact li{display:flex;gap:10px;align-items:flex-start}
.foot-contact svg{width:15px;height:15px;flex:none;margin-top:3px;stroke:rgba(236,229,248,.4);stroke-width:1.8;fill:none}
.foot-contact svg.wa{fill:rgba(236,229,248,.4);stroke:none}
.foot-contact span,.foot-contact a{color:rgba(236,229,248,.62);font-variant-numeric:tabular-nums}
.foot-contact a:hover{color:var(--on-accent)}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.09);padding:22px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.76rem;color:rgba(236,229,248,.42);
}

/* ============================================================================
   MOBILE FLOATBAR
   ============================================================================ */
.floatbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;height:54px;
  background:rgba(255,255,255,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line-2);
}
.floatbar a{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:.92rem;color:var(--accent-ink)}
.floatbar .fq{background:var(--accent);color:var(--on-accent)}
.floatbar .fw{background:var(--success);flex:0 0 38%;color:var(--on-accent)}
.floatbar .fw svg{width:19px;height:19px;fill:var(--on-accent)}

/* ============================================================================
   MANUFACTURING PAGE
   ============================================================================ */
.mhero{
  position:relative;overflow:hidden;color:var(--ink);padding:calc(var(--nav-h) + var(--topbar-h) + 72px) 0 0;
  background:
    radial-gradient(1000px 500px at 80% -10%,rgba(110,2,126,.06),transparent 60%),
    var(--bg-soft);
}
.mhero .wrap{position:relative;z-index:1}
.mhero h1{color:var(--ink);font-size:clamp(2.1rem,3.9vw,3.4rem);font-weight:680;letter-spacing:-.03em;line-height:1.06;max-width:20ch;margin:0 0 22px}
.mhero .sub{font-size:1.02rem;line-height:1.72;color:var(--ink-2);max-width:640px}
.mhero__recap{
  margin-top:30px;padding:16px 20px;border:1px solid var(--line-2);border-radius:var(--r-card);
  background:var(--card);box-shadow:var(--shadow-card);display:flex;gap:14px;align-items:center;flex-wrap:wrap;
  font-size:.88rem;color:var(--ink-2);max-width:760px;
}
.mhero__recap b{color:var(--ink);font-weight:640}
.mhero__recap .text-link{white-space:nowrap}

/* M1 stage */
.stagewrap{
  position:relative;height:clamp(360px,44vw,560px);margin-top:clamp(40px,5vw,64px);
  background:linear-gradient(180deg,var(--card),var(--violet-050) 55%,var(--violet-100));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  overflow:hidden;
}
.stagewrap canvas{position:absolute;inset:0;width:100%;height:100%}
.cutstats{
  position:absolute;right:28px;top:50%;transform:translateY(-50%);z-index:4;
  display:grid;gap:1px;background:var(--line);border:1px solid var(--line);width:200px;
  box-shadow:var(--shadow-card);
}
.cutstat{background:rgba(255,255,255,.85);backdrop-filter:blur(10px);padding:14px 16px}
.cutstat b{display:block;font-size:1.3rem;font-weight:650;letter-spacing:-.02em;color:var(--ink);font-variant-numeric:tabular-nums}
.cutstat b .u{color:var(--accent-hi);font-size:.72em}
.cutstat span{display:block;font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-top:4px}
.stagewrap__hint{
  position:absolute;left:30px;bottom:18px;z-index:4;font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-4);pointer-events:none;
}
.stagewrap__typical{
  position:absolute;right:30px;bottom:18px;z-index:4;font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-4);pointer-events:none;font-variant-numeric:tabular-nums;
}

/* M2 process <ol> */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);border:1px solid var(--line);counter-reset:flow}
.flow__item{background:var(--bg);padding:30px 24px 34px;position:relative;transition:background .4s var(--ease)}
.flow__item:hover{background:var(--mid)}
.flow__num{font-size:.68rem;letter-spacing:.16em;color:var(--accent);font-variant-numeric:tabular-nums}
.flow__item h3{font-size:1rem;font-weight:640;letter-spacing:-.015em;margin:14px 0 10px;color:var(--ink)}
.flow__item p{font-size:.84rem;line-height:1.62;color:var(--ink-2)}
.flow__item p b{color:var(--ink);font-weight:600}

/* spec table (real <table>) */
.spectable-wrap{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--card);box-shadow:var(--shadow-card)}
.spectable{width:100%;border-collapse:collapse;font-size:.88rem;font-variant-numeric:tabular-nums}
.spectable caption{
  text-align:left;padding:14px 18px;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-3);border-bottom:1px solid var(--line);background:var(--violet-050);
}
.spectable th{
  text-align:left;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);
  font-weight:600;padding:14px 18px 12px;border-bottom:1px solid var(--line-2);
}
.spectable td{padding:15px 18px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--ink-2)}
.spectable tr:last-child td{border-bottom:0}
.spectable td:first-child{font-weight:640;color:var(--ink);white-space:nowrap;width:190px}
.spectable .dim{display:block;margin-top:5px;color:var(--ink-3);font-size:.76rem;letter-spacing:.02em}

/* M3 fact matrix */
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-bottom:26px}
.matrix .cell{background:var(--bg);padding:28px 24px}
.matrix .n{font-size:clamp(2rem,3.4vw,3rem);font-weight:680;letter-spacing:-.03em;color:var(--ink);line-height:1;font-variant-numeric:tabular-nums}
.matrix .n small{font-size:.4em;font-weight:650;color:var(--accent)}
.matrix .t{margin-top:10px;font-size:.8rem;color:var(--ink-3);line-height:1.5}
.evgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}

/* M2 footnote + structure card */
.typnote{margin-top:18px;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-4);font-variant-numeric:tabular-nums}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.structcard{
  margin-top:26px;padding:26px 30px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--card);box-shadow:var(--shadow-card);display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;
}
.structcard h3{color:var(--ink);font-size:1.05rem;font-weight:640;margin-bottom:8px}
.structcard p{font-size:.9rem;color:var(--ink-2);max-width:560px}

/* M5 delivery */
.delivery{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.dl{
  position:relative;padding:30px;border-radius:var(--r-card);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.dl h3{color:var(--ink);font-size:1.1rem;font-weight:640;margin-bottom:10px}
.dl p{font-size:.9rem;color:var(--ink-2)}
.dl .chips{margin-top:18px}
.dl__tag{position:absolute;right:18px;top:18px;font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-4)}
#delivery .spectable-wrap{margin-top:26px}

/* ============================================================================
   CONTACT PAGE
   ============================================================================ */
.contact-hero{padding:calc(var(--nav-h) + var(--topbar-h) + 72px) 0 0;background:var(--bg-soft);border-bottom:1px solid var(--line);position:relative;overflow:hidden;color:var(--ink)}
.contact-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(900px 460px at 80% -10%,rgba(110,2,126,.06),transparent 60%);
}
.contact-hero .wrap{position:relative;padding-bottom:64px}
.contact-hero h1{color:var(--ink);font-size:clamp(2rem,3.6vw,3.1rem);font-weight:680;letter-spacing:-.03em;line-height:1.06;margin:0 0 18px}
.contact-hero .sub{color:var(--ink-2);max-width:620px;font-size:1rem}
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}

.form{
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--r-panel);box-shadow:var(--shadow-pop);
  padding:clamp(24px,3vw,38px);
}
.form h2{color:var(--ink);font-size:1.3rem;font-weight:650;letter-spacing:-.02em;margin-bottom:6px}
.form .fnote{font-size:.84rem;color:var(--ink-3);margin-bottom:26px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ffield{margin-bottom:16px}
.ffield label{display:block;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);margin-bottom:8px}
.ffield input,.ffield select,.ffield textarea{
  width:100%;background:var(--card);border:1px solid var(--line-2);border-radius:4px;
  padding:12px 14px;color:var(--ink);font:inherit;font-size:.92rem;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.ffield textarea{min-height:120px;resize:vertical}
.ffield input:focus,.ffield select:focus,.ffield textarea:focus{
  outline:none;border-color:rgba(110,2,126,.6);box-shadow:0 0 0 3px rgba(110,2,126,.12);
}
.ffield input::placeholder,.ffield textarea::placeholder{color:var(--ink-4)}
.ffield select{appearance:none;background-image:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="10" height="6" viewBox="0 0 10 6"><path d="M1 1l4 4 4-4" stroke="%237A7089" stroke-width="1.6" fill="none"/></svg>');background-repeat:no-repeat;background-position:right 14px center}
.form .btn{width:100%;margin-top:8px}
.form .ffine{margin-top:14px;font-size:.74rem;color:var(--ink-4);text-align:center}

/* intent radio chips (samples / proposal / general) */
.fchips{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:22px}
.fchips label{
  position:relative;padding:12px 10px;border:1px solid var(--line-2);border-radius:6px;
  text-align:center;font-size:.8rem;font-weight:600;color:var(--ink-2);cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.fchips label:hover{border-color:rgba(110,2,126,.45);color:var(--ink)}
.fchips input{position:absolute;opacity:0;pointer-events:none}
.fchips label:has(input:checked){
  border-color:rgba(110,2,126,.6);background:var(--accent-soft);color:var(--accent-ink);
  box-shadow:0 0 0 3px rgba(110,2,126,.12);
}

.contact-side h2{color:var(--ink);font-size:1.05rem;font-weight:650;margin-bottom:18px}
.promise-list{display:grid;gap:12px;margin-bottom:34px}
.promise-list .pli{
  display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.promise-list .pli svg{flex:none;width:19px;height:19px;stroke:var(--accent);stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;margin-top:2px}
.promise-list .pli b{display:block;font-size:.94rem;color:var(--ink)}
.promise-list .pli small{display:block;font-size:.8rem;color:var(--ink-2);margin-top:3px;line-height:1.5}
.direct{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--card);box-shadow:var(--shadow-card)}
.direct a{
  display:flex;align-items:center;gap:14px;padding:17px 20px;color:var(--ink);
  border-bottom:1px solid var(--line);font-size:.92rem;font-weight:600;font-variant-numeric:tabular-nums;
  transition:background .25s var(--ease);
}
.direct a:last-child{border-bottom:0}
.direct a:hover{background:var(--accent-soft);color:var(--accent-ink)}
.direct svg{width:17px;height:17px;stroke:var(--accent);stroke-width:1.8;fill:none;flex:none}
.direct svg.wa{fill:var(--accent);stroke:none}
.direct small{display:block;font-size:.72rem;color:var(--ink-3);font-weight:400}
.addr{padding:17px 20px;font-size:.84rem;color:var(--ink-3);display:flex;gap:14px;border-top:1px solid var(--line)}
.addr svg{width:17px;height:17px;stroke:var(--ink-4);stroke-width:1.8;fill:none;flex:none;margin-top:2px}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */
@media (max-width:1060px){
  .hero .wrap{grid-template-columns:1fr .95fr;gap:36px}
  .fam{grid-column:span 6}
  .fam--feature{grid-column:span 12}
  .ind-grid{grid-template-columns:repeat(3,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .evgrid{grid-template-columns:1fr 1fr}
  .nav__links{gap:18px}
}

@media (max-width:900px){
  :root{--topbar-h:0px}/* topbar gone on mobile, nav/paddings collapse automatically */
  body{padding-bottom:54px}
  .wrap{padding:0 20px}

  .topbar{display:none}

  .nav__inner{padding:0 20px;gap:14px}
  .nav__links,.nav .btn--sm{display:none}
  .nav__burger{display:block}
  .nav__drawer{display:block}

  /* hero: 3D stage on top (320 px), copy below */
  .hero .wrap{grid-template-columns:1fr;padding-top:calc(var(--nav-h) + var(--topbar-h) + 30px);padding-bottom:60px;gap:34px}
  .hero__stagecol{order:-1}
  .hero__stage{height:320px;min-height:0}
  .stage__leaders{display:none}/* chips collide with the step card on small screens */
  .hero-anchors{grid-template-columns:1fr 1fr;gap:20px 24px}
  .hero-anchors .a>span{max-width:none}
  .stage__meta{display:none}

  .trust .wrap{grid-template-columns:1fr 1fr;gap:30px 12px;padding-top:38px;padding-bottom:38px}
  .trust .item{border-left:none;padding:0;min-width:0;overflow-wrap:break-word}
  .trust .n{font-size:2.4rem}

  /* long sentence-style buttons (sec-foot) must wrap on narrow screens instead of overflowing */
  .sec-foot .btn{white-space:normal;text-align:center;max-width:100%;height:auto;line-height:1.4}

  .prob-grid{grid-template-columns:1fr}
  .fam-grid{grid-template-columns:1fr}
  .fam,.fam--feature{grid-column:span 12;flex-direction:column}
  .fam--feature .fam__media{border-right:0;border-bottom:1px solid var(--line)}
  .fam--feature .fam__media img{height:200px;min-height:0}

  /* scrolly: card at bottom, model above */
  .step__inner--side{align-items:flex-end;padding-bottom:9vh}
  .card{width:100%;padding:24px 22px}
  .card__title{font-size:1.35rem}
  .step--hero .display{font-size:clamp(2.2rem,10vw,3.2rem)}
  .stage__scale{display:none}
  .stage__hud{left:18px;bottom:16px;font-size:.6rem}
  .leader__chip{right:12px;font-size:.56rem;padding:5px 8px}

  .seal{grid-template-columns:1fr}
  .factory .cols,.quality .cols,.cta-band .wrap,.contact-grid{grid-template-columns:1fr;gap:36px}
  .factory-imgs .tall{grid-row:auto}
  .fit-points{grid-template-columns:1fr;gap:14px;text-align:left}
  .ind-grid{grid-template-columns:1fr 1fr}
  .ind:last-child{grid-column:1/-1}
  .steps{grid-template-columns:1fr;gap:26px}
  .steps::before{display:none}
  .steps .step2{display:flex;text-align:left;gap:16px;padding:0}
  .steps .dot{margin:0;flex:none}
  .promise-inner{grid-template-columns:1fr}
  .pr-item+.pr-item{border-left:none;border-top:1px solid var(--line)}

  .flow{grid-template-columns:1fr}
  .matrix{grid-template-columns:1fr 1fr}
  .evgrid{grid-template-columns:1fr}
  .delivery{grid-template-columns:1fr}
  .cutstats{right:14px;width:158px}
  .cutstat b{font-size:1rem}
  .cutstat{padding:10px 12px}
  .stagewrap__hint{display:none}
  .spectable thead{display:none}
  .spectable tr{display:block;border-bottom:1px solid var(--line);padding:12px 0}
  .spectable td{display:block;border:0;padding:4px 18px}
  .spectable td:first-child{width:auto;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);white-space:normal}

  .frow{grid-template-columns:1fr}
  .foot-main{grid-template-columns:1fr;gap:34px;padding:52px 0 40px}
  .foot-bottom{flex-direction:column;gap:6px}
  .floatbar{display:flex}
}

@media (max-width:400px){
  .ind-grid{grid-template-columns:1fr}
  .matrix{grid-template-columns:1fr}
}

/* ============================================================================
   REDUCED MOTION
   ============================================================================ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none}
}

/* ---- enquiry form status line ---- */
.form .ffine.fstat{margin-top:10px;font-weight:600}
.form .ffine.fstat:empty{margin-top:0}
.form .ffine.fstat.ok{color:#0F7A45}
.form .ffine.fstat.err{color:#B3261E}