:root{
  --ink:#181512;
  --ink-2:#211c18;
  --paper:#f4efe7;
  --paper-2:#e9e1d7;
  --sand:#ded1c2;
  --sand-deep:#c8b6a3;
  --muted:#989ca2;
  --line:rgba(242,240,234,.16);
  --signal:#ff6a14;
  --signal-soft:rgba(255,106,20,.14);
  --signal-glow:rgba(255,106,20,.28);
  --radius-sm:10px;
  --radius-md:20px;
  --radius-lg:28px;
  --page:1280px;
  --pad:clamp(22px,5vw,76px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--ink)}
body{margin:0;background:var(--ink);color:var(--paper);font-family:Inter,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
body.menu-open{position:fixed;width:100%;overflow:hidden;overscroll-behavior:none}
a{color:inherit;text-decoration:none}
button{font:inherit}
::selection{background:var(--signal);color:var(--ink)}
.noise{position:fixed;inset:0;z-index:30;pointer-events:none;opacity:.025;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E")}
.scroll-line{position:fixed;inset:0 auto auto 0;z-index:90;width:100%;height:2px;background:var(--signal);transform:scaleX(0);transform-origin:left}
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;display:flex;align-items:center;justify-content:space-between;padding:22px var(--pad);border-bottom:1px solid transparent;background:rgba(24,21,18,.02);transition:.35s ease}
.site-header.scrolled{padding-top:14px;padding-bottom:14px;background:rgba(24,21,18,.88);backdrop-filter:blur(18px);border-color:var(--line)}
.brand{position:relative;z-index:3;display:flex;align-items:center;gap:11px;font-size:12px;font-weight:700;letter-spacing:.19em;white-space:nowrap}
.brand-mark{width:28px;height:28px;border:1px solid rgba(242,240,234,.48);border-radius:8px;display:grid;place-items:center;color:var(--paper);font-size:8px;letter-spacing:.04em}
.brand-mark span{display:block}
.nav{display:flex;align-items:center;gap:clamp(20px,2.5vw,38px);font-size:11px;letter-spacing:.12em;color:#c7c8c5}
.nav a{position:relative}
.nav a:not(.lang):after{content:"";position:absolute;left:0;bottom:-8px;width:100%;height:1px;background:var(--signal);box-shadow:0 0 12px var(--signal-glow);transform:scaleX(0);transform-origin:left;transition:.25s ease}
.nav a:hover:after{transform:scaleX(1)}
.nav a.current:after{transform:scaleX(1)}
.lang{border:1px solid var(--line);border-radius:8px;padding:8px 11px;color:var(--paper);transition:.25s ease}.lang:hover{border-color:rgba(255,106,20,.72);color:var(--signal);box-shadow:0 0 20px rgba(255,106,20,.08)}
.menu-btn{display:none;border:0;background:none;color:var(--paper);padding:8px;font-size:11px;letter-spacing:.15em}
.hero{min-height:100svh;position:relative;display:grid;align-items:center;overflow:hidden;padding:130px var(--pad) 50px;border-bottom:1px solid var(--line)}
#field{position:absolute;inset:0 0 0 auto;width:62%;height:100%;opacity:.66}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(24,21,18,1) 0%,rgba(24,21,18,.96) 46%,rgba(24,21,18,.12) 82%);pointer-events:none;z-index:1}
.hero-grid{position:absolute;inset:0;opacity:.25;background-image:linear-gradient(rgba(242,240,234,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(242,240,234,.045) 1px,transparent 1px);background-size:96px 96px;mask-image:linear-gradient(to bottom,transparent 0,#000 32%,#000 78%,transparent 100%)}
.hero-inner{position:relative;z-index:2;width:min(var(--page),100%);margin:0 auto}
.eyebrow{display:flex;align-items:center;gap:13px;color:#c5c7c8;font-size:10px;font-weight:650;letter-spacing:.22em;text-transform:uppercase}
.eyebrow:before{content:"";width:32px;height:1px;background:var(--signal)}
.hero h1{max-width:1050px;margin:25px 0 27px;font-size:clamp(58px,7.6vw,118px);line-height:.92;letter-spacing:-.058em;font-weight:610}
.hero h1 .outline{display:block;color:#777b81;-webkit-text-stroke:0;font-size:.82em;font-weight:430;letter-spacing:-.045em}
.hero-bottom{display:flex;align-items:flex-end;justify-content:space-between;gap:40px}
.hero-copy{max-width:650px;margin:0;color:#b6b8b8;font-size:clamp(16px,1.35vw,20px);line-height:1.7}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:50px;padding:0 21px;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:11px;font-weight:750;letter-spacing:.1em;text-transform:uppercase;transition:transform .28s ease,border-color .28s ease,background-color .28s ease,color .28s ease,box-shadow .28s ease}
.button span{display:inline-flex;align-items:center;justify-content:center;transition:transform .28s cubic-bezier(.2,.8,.2,1)}
.button-arrow svg{display:block;width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}
.button.primary{background:var(--paper);border-color:var(--paper);color:var(--ink)}
.button:hover{transform:translateY(-2px);border-color:rgba(255,106,20,.78);background:var(--signal-soft);color:var(--signal);box-shadow:0 10px 34px rgba(0,0,0,.22),0 0 24px rgba(255,106,20,.08)}
.button:hover span{transform:translateX(4px)}
.button.primary:hover{background-color:var(--signal);background-image:linear-gradient(110deg,transparent 28%,rgba(255,255,255,.28) 48%,transparent 68%);background-size:260% 100%;border-color:var(--signal);color:var(--ink);box-shadow:0 12px 36px rgba(0,0,0,.24),0 0 28px rgba(255,106,20,.18);animation:signal-sweep .8s ease both}
.button:focus-visible,.lang:focus-visible,.menu-btn:focus-visible{outline:2px solid var(--signal);outline-offset:4px}
@keyframes signal-sweep{from{background-position:110% 0}to{background-position:-35% 0}}
.hero-index{display:flex;align-items:center;gap:13px;color:#6f7378;font-size:9px;letter-spacing:.2em;writing-mode:vertical-rl}
.hero-index:before{content:"";width:1px;height:54px;background:#73777c}
.ticker{position:relative;z-index:4;overflow:hidden;border-bottom:1px solid rgba(10,11,13,.14);background:var(--paper);color:var(--ink);padding:18px var(--pad);white-space:nowrap}
.ticker-track{width:min(var(--page),100%);margin:auto;display:flex;justify-content:space-between;gap:30px;font-size:10px;font-weight:700;letter-spacing:.17em;text-transform:uppercase}
.ticker-track span:after{content:""}.ticker-track span:nth-child(n+5){display:none}
.section{position:relative;padding:clamp(100px,11vw,170px) var(--pad)}
.section-inner{width:min(var(--page),100%);margin:0 auto}
.section-head{display:grid;grid-template-columns:150px 1fr;gap:clamp(35px,7vw,110px);margin-bottom:clamp(62px,8vw,110px)}
.section-no{font-size:10px;letter-spacing:.2em;color:#6d7277;padding-top:12px}
.section-title{max-width:1020px;margin:0;font-size:clamp(44px,5.2vw,78px);line-height:1.04;letter-spacing:-.048em;font-weight:580}
.section-lead{max-width:720px;margin:30px 0 0;color:#9ea3a5;font-size:clamp(16px,1.35vw,20px);line-height:1.75}
.truth{background:var(--paper);color:var(--ink)}
.truth .section-no{color:#62666b}.truth .section-lead{color:#555b5f}
.truth-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.truth-item{min-height:300px;padding:30px;border:1px solid rgba(10,11,13,.16);border-radius:var(--radius-md);background:rgba(255,255,255,.12);display:flex;flex-direction:column;justify-content:space-between;transition:transform .32s cubic-bezier(.2,.8,.2,1),border-color .32s ease,box-shadow .32s ease}
.truth-item+ .truth-item{padding-left:30px}.truth-item:last-child{border-right:1px solid rgba(10,11,13,.16)}
.truth-item:hover{transform:translateY(-4px);border-color:rgba(255,106,20,.45);box-shadow:0 22px 55px rgba(10,11,13,.07)}
.truth-item:hover .num{color:#c84d08}
.truth-item .num{font-size:10px;letter-spacing:.18em;color:#777c80}
.truth-item h3{margin:60px 0 14px;font-size:clamp(29px,3vw,42px);line-height:1.05;letter-spacing:-.035em;font-weight:580}
.truth-item p{max-width:350px;margin:0;color:#555b5e;line-height:1.7;font-size:14px}
.services{overflow:hidden;background:var(--ink);color:var(--paper)}
.service-list{display:grid;gap:10px}
.service-row{position:relative;z-index:0;overflow:hidden;display:grid;grid-template-columns:90px 1.15fr 1fr 34px;gap:30px;align-items:center;padding:38px 28px;border:1px solid var(--line);border-radius:var(--radius-md);transition:transform .35s cubic-bezier(.2,.8,.2,1),border-color .35s ease,background-color .35s ease,box-shadow .35s ease}
.service-row:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,106,20,.15),rgba(255,106,20,.035) 42%,transparent 78%);transform:scaleX(0);transform-origin:left;transition:.42s cubic-bezier(.2,.8,.2,1);z-index:-1}
.service-row:hover{transform:translateY(-2px);border-color:rgba(255,106,20,.55);box-shadow:0 20px 60px rgba(0,0,0,.2),inset 0 1px 0 rgba(255,255,255,.025)}
.service-row:hover:before{transform:scaleX(1)}
.service-row .code{font-size:10px;color:#71767a;letter-spacing:.18em}
.service-row:hover .code{color:var(--signal)}.service-row:hover .desc{color:#b8bbbd}
.service-row h3{margin:0;font-size:clamp(31px,4vw,58px);letter-spacing:-.045em;line-height:1;font-weight:560}
.service-row .desc{max-width:490px;color:#989da0;line-height:1.7;font-size:14px}
.service-row .arrow{display:grid;width:32px;height:32px;place-items:center;border:1px solid rgba(242,240,234,.14);border-radius:50%;color:#73777b;transition:color .25s ease,transform .25s ease,border-color .25s ease,box-shadow .25s ease}.service-row .arrow svg{display:block;width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.55;stroke-linecap:round;stroke-linejoin:round}.service-row:hover .arrow{color:var(--signal);transform:translate(4px,-4px);border-color:rgba(255,106,20,.45);box-shadow:0 0 18px rgba(255,106,20,.12)}
.case-study{position:relative;overflow:hidden;padding:clamp(110px,12vw,180px) var(--pad);background:linear-gradient(135deg,#eee6dc 0%,var(--sand) 56%,#d7c8b8 100%);color:var(--ink)}
.case-study:before{content:"03";position:absolute;right:-.03em;bottom:-.29em;color:rgba(17,16,15,.035);font-size:min(44vw,650px);font-weight:750;letter-spacing:-.09em;line-height:1;pointer-events:none}
.case-inner{position:relative;z-index:1;width:min(var(--page),100%);margin:0 auto;display:grid;grid-template-columns:1.03fr .97fr;gap:clamp(55px,7vw,105px);align-items:end}
.case-kicker{display:flex;justify-content:space-between;gap:20px;padding-bottom:18px;border-bottom:1px solid rgba(17,16,15,.18);color:#655f59;font-size:9px;font-weight:700;letter-spacing:.18em}
.case-client{margin-top:46px;color:#3d3935;font-size:11px;font-weight:750;letter-spacing:.16em}.case-client i{margin:0 9px;color:var(--signal);font-style:normal;text-shadow:0 0 16px rgba(255,106,20,.16)}
.case-copy h2{max-width:720px;margin:24px 0 28px;font-size:clamp(45px,5vw,76px);line-height:1.01;letter-spacing:-.052em;font-weight:580}
.case-copy>p{max-width:680px;margin:0;color:#56504a;font-size:clamp(16px,1.35vw,19px);line-height:1.75}
.case-facts{display:grid;grid-template-columns:1fr 1fr;column-gap:30px;margin:44px 0 0;border-top:1px solid rgba(17,16,15,.18)}
.case-facts div{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:16px 0;border-bottom:1px solid rgba(17,16,15,.15)}
.case-facts dt{color:#777068;font-size:9px;letter-spacing:.13em;text-transform:uppercase}.case-facts dd{margin:0;text-align:right;color:#272421;font-size:12px;font-weight:650}
.case-scope{margin-top:22px;color:#6c655e;font-size:9px;font-weight:700;letter-spacing:.13em;line-height:1.7}
.case-visual{position:relative;overflow:hidden;margin:0;border-radius:var(--radius-lg);background:#e3b9a7;box-shadow:0 34px 90px rgba(62,44,31,.18),inset 0 1px 0 rgba(255,255,255,.35)}
.case-visual:after{content:"";position:absolute;inset:auto 0 0;height:34%;background:linear-gradient(transparent,rgba(17,16,15,.38));pointer-events:none}
.case-visual img{display:block;width:100%;aspect-ratio:850/667;object-fit:cover;transition:transform .7s cubic-bezier(.2,.8,.2,1),filter .45s ease}
.case-visual figcaption{position:absolute;z-index:2;left:26px;right:26px;bottom:22px;display:flex;justify-content:space-between;gap:20px;color:#fff;font-size:9px;font-weight:750;letter-spacing:.16em}
.case-visual:hover img{transform:scale(1.025);filter:saturate(1.04)}
.case-visual:hover{box-shadow:0 34px 90px rgba(62,44,31,.2),0 0 32px rgba(255,106,20,.07)}
.case-page{background:var(--ink);color:var(--paper)}
.case-page .site-header{background:rgba(24,21,18,.94);border-color:var(--line);backdrop-filter:blur(18px)}
.case-product-story{position:relative;height:300vh;background:var(--sand);--story-dark:0;--intro-opacity:1;--shift-opacity:0}
.case-stage{position:sticky;top:0;height:100vh;min-height:660px;overflow:hidden;isolation:isolate}
.story-bg{position:absolute;inset:0;z-index:-3;pointer-events:none}.story-bg-light{background:radial-gradient(circle at 76% 54%,rgba(255,255,255,.75),transparent 29%),linear-gradient(135deg,#f0e8de 0%,#dccdbd 62%,#c9b6a4 100%)}
.story-bg-light:before{content:"";position:absolute;width:min(48vw,720px);aspect-ratio:1;border:1px solid rgba(17,16,15,.08);border-radius:50%;right:7vw;top:17vh;box-shadow:0 0 0 5vw rgba(255,255,255,.09),0 0 0 10vw rgba(255,255,255,.055)}
.story-bg-dark{opacity:var(--story-dark);background:radial-gradient(circle at 68% 48%,rgba(255,106,20,.16),transparent 18%),linear-gradient(120deg,#181512,#28211c 60%,#100e0c);transition:opacity .08s linear}
.story-bg-dark:before,.story-bg-dark:after{content:"";position:absolute;height:1px;background:linear-gradient(90deg,transparent,var(--signal),transparent);filter:drop-shadow(0 0 8px var(--signal-glow));transform-origin:left}.story-bg-dark:before{width:70vw;right:-16vw;top:30%;transform:rotate(-24deg)}.story-bg-dark:after{width:58vw;right:-8vw;top:62%;transform:rotate(18deg)}
.story-scene{position:absolute;z-index:3;left:var(--pad);max-width:690px}.story-scene-intro{top:clamp(132px,17vh,185px);width:min(54vw,690px);color:var(--ink);opacity:var(--intro-opacity);transform:translateY(calc((1 - var(--intro-opacity))*-32px));pointer-events:none}
.story-scene-intro .case-kicker{margin-bottom:46px}.story-scene-intro h1{margin:24px 0 26px;font-size:clamp(50px,5.4vw,88px);line-height:.94;letter-spacing:-.064em;font-weight:590}.story-scene-intro>p{max-width:590px;margin:0;color:#5a534d;font-size:clamp(15px,1.25vw,18px);line-height:1.75}
.story-scene-shift{top:50%;transform:translateY(calc(-50% + (1 - var(--shift-opacity))*35px));width:min(44vw,620px);color:var(--paper);opacity:var(--shift-opacity);pointer-events:none}.story-scene-shift>span{color:var(--signal);font-size:10px;font-weight:700;letter-spacing:.21em}.story-scene-shift h2{margin:22px 0 26px;font-size:clamp(50px,5.7vw,88px);line-height:.96;letter-spacing:-.06em;font-weight:560}.story-scene-shift p{max-width:560px;margin:0;color:#ded8d1;font-size:clamp(15px,1.25vw,18px);line-height:1.78;text-shadow:0 2px 20px rgba(0,0,0,.95)}
.product-motion{position:absolute;inset:0;z-index:1;pointer-events:none}.product-motion img{position:absolute;display:block;width:min(67vw,920px);height:auto;filter:drop-shadow(0 36px 36px rgba(17,16,15,.26));will-change:transform,opacity}.product-main{right:-5vw;bottom:-9vh;transform:translate3d(12vw,12vh,0) rotate(10deg) scale(.8);transform-origin:center}.product-echo{left:-25vw;top:-12vh;opacity:0;transform:translate3d(-22vw,-16vh,0) rotate(-26deg) scale(.55);filter:grayscale(.2) brightness(.62) drop-shadow(0 30px 45px rgba(0,0,0,.3))!important}
.product-halo{position:absolute;z-index:-1;width:min(46vw,650px);aspect-ratio:1;right:3vw;top:18vh;border-radius:50%;border:1px solid rgba(255,106,20,.48);box-shadow:0 0 70px rgba(255,106,20,.13),inset 0 0 90px rgba(255,106,20,.05);opacity:var(--story-dark);transform:scale(calc(.7 + var(--story-dark)*.3))}
.story-progress{position:absolute;z-index:4;right:var(--pad);bottom:34px;display:flex;align-items:center;gap:12px;color:#6f665f;font-size:9px;letter-spacing:.18em}.story-progress i{width:68px;height:1px;background:linear-gradient(90deg,var(--signal) calc(var(--story-dark)*100%),rgba(17,16,15,.2) 0)}.story-progress b{font-weight:650}.story-progress span{margin-right:8px}
.case-fact-band{position:relative;z-index:4;padding:0 var(--pad);background:var(--ink);color:var(--paper)}
.case-fact-inner{width:min(var(--page),100%);margin:auto;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.case-fact-inner>div{min-height:170px;padding:30px 26px;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between}.case-fact-inner>div:first-child{border-left:1px solid var(--line)}.case-fact-inner span{color:#77736e;font-size:9px;letter-spacing:.15em;text-transform:uppercase}.case-fact-inner strong{font-size:clamp(18px,1.7vw,26px);font-weight:520;line-height:1.25}
.case-page-hero{min-height:100vh;padding-top:clamp(140px,14vw,210px)}
.case-page-hero .case-copy h1{max-width:780px;margin:22px 0 28px;font-size:clamp(54px,6.5vw,104px);line-height:.94;letter-spacing:-.065em;font-weight:580}
.case-page-hero .case-kicker a{color:#6f655c;transition:color .25s ease}.case-page-hero .case-kicker a:hover{color:var(--signal)}
.case-detail{padding:clamp(105px,12vw,180px) var(--pad);background:var(--ink);color:var(--paper)}
.case-detail-inner,.case-next-inner{width:min(var(--page),100%);margin:auto}
.case-detail-head{display:grid;grid-template-columns:.65fr 1.4fr .9fr;gap:clamp(28px,5vw,80px);align-items:start}
.case-detail-head>span{padding-top:10px;color:var(--signal);font-size:10px;font-weight:700;letter-spacing:.2em}
.case-detail-head h2{margin:0;font-size:clamp(45px,5.6vw,86px);line-height:.98;letter-spacing:-.055em;font-weight:560}
.case-detail-head p{margin:0;padding-top:8px;color:#a9a39c;font-size:clamp(15px,1.3vw,18px);line-height:1.85}
.case-detail-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:clamp(70px,9vw,130px);border-top:1px solid var(--line)}
.case-detail-grid article{min-height:310px;padding:30px 26px;border-right:1px solid var(--line)}.case-detail-grid article:first-child{border-left:1px solid var(--line)}
.case-detail-grid b{display:block;margin-bottom:74px;color:var(--signal);font-size:11px;letter-spacing:.14em}.case-detail-grid h3{margin:0;font-size:clamp(25px,2.2vw,34px);font-weight:550}.case-detail-grid p{margin:20px 0 0;color:#97938d;font-size:14px;line-height:1.75}
.case-next{padding:clamp(100px,12vw,180px) var(--pad);background:linear-gradient(135deg,#eee6dc,var(--sand));color:var(--ink)}
.case-next-inner>span{font-size:10px;font-weight:700;letter-spacing:.2em;color:#6f655c}.case-next h2{max-width:980px;margin:24px 0 44px;font-size:clamp(60px,8vw,126px);line-height:.91;letter-spacing:-.07em;font-weight:580}
.system{min-height:420vh;padding:0;background:var(--ink-2)}
.system-sticky{height:100vh;position:sticky;top:0;overflow:hidden;display:flex;flex-direction:column;padding:110px var(--pad) 42px}
.system-top{width:min(var(--page),100%);margin:0 auto 36px;display:flex;justify-content:space-between;align-items:flex-end}
.system-top h2{margin:15px 0 0;font-size:clamp(38px,5vw,74px);line-height:1;letter-spacing:-.05em;font-weight:560}
.system-progress{font-size:10px;color:var(--signal);letter-spacing:.18em}
.system-window{width:min(var(--page),100%);margin:0 auto;overflow:visible;flex:1;display:flex;align-items:center}
.system-track{display:flex;gap:18px;width:max-content;will-change:transform}
.phase{width:min(76vw,600px);height:min(52vh,450px);border:1px solid rgba(242,240,234,.17);border-radius:var(--radius-lg);background:#201b17;padding:clamp(26px,3vw,42px);display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;box-shadow:inset 0 1px 0 rgba(255,255,255,.025),0 24px 80px rgba(0,0,0,.18);transition:transform .35s cubic-bezier(.2,.8,.2,1),border-color .35s ease,box-shadow .35s ease}
.phase:before{content:"";position:absolute;left:clamp(26px,3vw,42px);right:clamp(26px,3vw,42px);top:0;height:1px;background:linear-gradient(90deg,var(--signal),rgba(255,106,20,.12),transparent 72%);transform:scaleX(.18);transform-origin:left;opacity:.55;transition:transform .5s cubic-bezier(.2,.8,.2,1),opacity .35s ease;box-shadow:0 0 18px rgba(255,106,20,.22)}
.phase:hover{transform:translateY(-5px);border-color:rgba(255,106,20,.48);box-shadow:inset 0 1px 0 rgba(255,255,255,.035),0 28px 90px rgba(0,0,0,.25),0 0 30px rgba(255,106,20,.05)}
.phase:hover:before{transform:scaleX(1);opacity:1}
.phase:after{content:attr(data-day);position:absolute;right:-8px;bottom:-30px;font-size:clamp(90px,15vw,200px);font-weight:600;letter-spacing:-.08em;color:rgba(242,240,234,.035)}
.phase-no{font-size:9px;color:#9b9fa4;letter-spacing:.18em}
.phase h3{max-width:500px;margin:0;font-size:clamp(38px,5vw,66px);line-height:.98;letter-spacing:-.045em;font-weight:540}
.phase p{max-width:440px;margin:18px 0 0;color:#9ea2a4;line-height:1.7;font-size:14px}
.phase-tags{display:flex;gap:8px;flex-wrap:wrap}.phase-tags span{padding:7px 10px;border:1px solid rgba(242,240,234,.13);border-radius:999px;color:#858a8e;font-size:9px;letter-spacing:.12em;text-transform:uppercase;transition:.25s ease}.phase:hover .phase-tags span{border-color:rgba(255,106,20,.25);color:#aeb1b3}
.model{background:var(--paper-2);color:var(--ink)}
.model .section-no{color:#686d71}.model .section-lead{color:#585e62}
.loop{display:grid;grid-template-columns:1fr 1fr;gap:clamp(55px,8vw,115px);align-items:center}
.loop-visual{aspect-ratio:1;position:relative;display:grid;place-items:center;max-width:580px}
.orbit{position:absolute;border:1px solid rgba(10,11,13,.2);border-radius:50%;animation:spin 18s linear infinite}
.orbit.one{inset:8%}.orbit.two{inset:20%;animation-direction:reverse;animation-duration:13s}.orbit.three{inset:33%;animation-duration:9s}
.orbit:before{content:"";position:absolute;top:-5px;left:50%;width:10px;height:10px;background:var(--ink);border-radius:50%}
@keyframes spin{to{transform:rotate(360deg)}}
.loop-center{width:27%;aspect-ratio:1;border-radius:50%;background:var(--ink);color:var(--paper);display:grid;place-items:center;text-align:center;font-size:10px;font-weight:700;letter-spacing:.13em;z-index:2}
.loop-copy{display:grid;border-top:1px solid rgba(10,11,13,.24)}
.loop-step{display:grid;grid-template-columns:55px 1fr;gap:22px;padding:28px 0;border-bottom:1px solid rgba(10,11,13,.2)}
.loop-step b{color:#7b8084;font-size:10px;letter-spacing:.14em}.loop-step strong{font-size:26px;letter-spacing:-.03em;font-weight:580}.loop-step span{grid-column:2;color:#5b6164;line-height:1.65;font-size:14px}
.proof{background:var(--paper);color:var(--ink)}
.proof .section-no{color:#686d71}.proof .section-lead{color:#555b5f}
.proof-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
.proof-panel{min-height:440px;padding:clamp(30px,4vw,52px);border:1px solid rgba(10,11,13,.18);border-radius:var(--radius-lg);transition:transform .32s cubic-bezier(.2,.8,.2,1),border-color .32s ease,box-shadow .32s ease}
.proof-panel.dark{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.proof-panel:hover{transform:translateY(-3px);border-color:rgba(255,106,20,.4);box-shadow:0 24px 64px rgba(10,11,13,.08)}.proof-panel.dark:hover{border-color:rgba(255,106,20,.5);box-shadow:0 24px 70px rgba(10,11,13,.18),0 0 30px rgba(255,106,20,.05)}
.proof-kicker{color:#73787c;font-size:9px;letter-spacing:.18em}.proof-panel.dark .proof-kicker{color:#858a8f}
.proof-panel h3{margin:58px 0 36px;font-size:clamp(36px,4.2vw,62px);line-height:1;letter-spacing:-.05em;font-weight:560}
.deliverables{list-style:none;padding:0;margin:0;border-top:1px solid currentColor}
.deliverables li{display:flex;justify-content:space-between;gap:22px;padding:15px 0;border-bottom:1px solid rgba(110,115,115,.34);font-size:13px}.deliverables em{font-style:normal;color:#747a7e}.dark .deliverables em{color:#80868a}
.legal{margin-top:28px;color:#6d7376;font-size:12px;line-height:1.8}
.cta{position:relative;overflow:hidden;padding:clamp(110px,13vw,200px) var(--pad);background:var(--ink)}
.cta:before{content:"A";position:absolute;right:-.05em;bottom:-.34em;color:rgba(242,240,234,.025);font-size:min(72vw,900px);font-weight:800;line-height:1}
.cta-inner{width:min(var(--page),100%);margin:0 auto;position:relative;z-index:2}
.cta h2{max-width:1100px;margin:24px 0 42px;font-size:clamp(54px,9vw,132px);line-height:.9;letter-spacing:-.068em;font-weight:580}
.cta h2 span{color:#777b80;font-weight:430}
.contact-line{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-top:62px;padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:#777c80;font-size:10px;letter-spacing:.14em}
.contact-line a{color:var(--paper);font-size:clamp(17px,2vw,28px);font-weight:560;letter-spacing:-.02em;word-break:break-all}.contact-line a:hover{color:var(--signal)}
.footer{padding:34px var(--pad) 48px;border-top:1px solid var(--line);background:var(--ink);color:#73787c;font-size:10px;letter-spacing:.1em}
.footer-inner{width:min(var(--page),100%);margin:0 auto;display:flex;justify-content:space-between;gap:40px;line-height:1.8}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}
.reveal.visible{opacity:1;transform:none}
@media (max-width:900px){
  .nav{position:fixed;z-index:2;inset:0;width:100vw;height:100dvh;min-height:100svh;overflow-y:auto;overscroll-behavior:contain;background:var(--ink);display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:calc(92px + env(safe-area-inset-top,0px)) var(--pad) calc(34px + env(safe-area-inset-bottom,0px));gap:28px;font-size:21px;transform:translate3d(100%,0,0);visibility:hidden;transition:transform .35s cubic-bezier(.2,.8,.2,1),visibility 0s linear .35s}.menu-open .nav{transform:none;visibility:visible;transition-delay:0s}.menu-open .site-header{background:transparent!important;border-color:transparent!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}.menu-btn{display:block;position:relative;z-index:3}.nav .lang{font-size:12px}
  .hero{padding-top:125px}.hero:before{background:linear-gradient(90deg,rgba(17,16,15,.98),rgba(17,16,15,.64))}#field{width:100%;opacity:.44}.hero h1{font-size:clamp(57px,15vw,98px)}.hero h1 .outline{font-size:.88em}.hero-bottom{align-items:flex-start}.hero-index{display:none}
  .section-head{grid-template-columns:1fr;gap:18px}.section-title{font-size:clamp(43px,10.5vw,70px)}
  .truth-grid{grid-template-columns:1fr;gap:12px}.truth-item{min-height:220px;padding:28px;border:1px solid rgba(10,11,13,.16)}.truth-item+ .truth-item{padding-left:28px}.truth-item:last-child{border:1px solid rgba(10,11,13,.16)}.truth-item h3{margin-top:35px}
  .service-row{grid-template-columns:54px 1fr 28px;gap:16px}.service-row .desc{grid-column:2}.service-row .arrow{grid-row:1;grid-column:3}
  .case-inner{grid-template-columns:1fr;align-items:start}.case-visual{max-width:760px}.case-copy h2{max-width:860px}
  .case-detail-head{grid-template-columns:1fr}.case-detail-head p{max-width:680px}.case-detail-grid{grid-template-columns:repeat(2,1fr)}.case-detail-grid article:nth-child(3){border-left:1px solid var(--line)}
  .story-scene-intro{width:min(58vw,650px)}.story-scene-intro h1{font-size:clamp(48px,6.4vw,72px)}.product-motion img{width:min(74vw,850px)}
  .system{min-height:400vh}.system-top{align-items:flex-start;flex-direction:column}.system-sticky{padding-top:95px}.phase{width:82vw}
  .loop,.proof-grid{grid-template-columns:1fr}.loop-visual{margin:auto}.proof-panel{min-height:auto}.footer-inner{flex-direction:column}
}
@media (max-width:560px){
  .site-header{padding-top:15px;padding-bottom:15px}.brand{font-size:10px}.brand-mark{width:25px;height:25px}
  .hero{min-height:850px;padding-bottom:38px}.hero h1{margin-top:20px}.hero-copy{font-size:15px}.button{width:100%}
  html[lang="zh-CN"] .hero h1 .outline{font-size:.68em;line-height:1.06;white-space:nowrap}
  .ticker{padding:15px 20px}.ticker-track{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;white-space:normal}
  .section{padding-top:95px;padding-bottom:95px}.truth-item p{font-size:14px}
  .service-row{grid-template-columns:1fr auto;grid-template-areas:"code arrow" "title arrow" "desc desc";gap:12px 18px;padding:28px 22px}.service-row .code{grid-area:code;align-self:end}.service-row h3{grid-area:title;min-width:0;font-size:clamp(30px,9.1vw,38px);line-height:1.05;overflow-wrap:normal;word-break:keep-all}.service-row .desc{grid-area:desc;margin:16px 0 0}.service-row .arrow{grid-area:arrow;align-self:start;margin-top:2px}.service-row:hover{padding-left:22px;padding-right:22px}html[lang="zh-CN"] .service-row h3{white-space:nowrap;font-size:clamp(29px,8.8vw,36px)}
  .case-study{padding-top:95px;padding-bottom:95px}.case-kicker{align-items:flex-start;flex-direction:column}.case-client{margin-top:34px}.case-copy h2{font-size:clamp(42px,12vw,62px)}.case-facts{grid-template-columns:1fr;margin-top:34px}.case-visual{border-radius:22px}.case-visual figcaption{left:18px;right:18px;bottom:16px;flex-direction:column;gap:5px}
  .case-page-hero{padding-top:118px}.case-page-hero .case-copy h1{font-size:clamp(44px,12vw,62px)}.case-detail-grid{grid-template-columns:1fr}.case-detail-grid article,.case-detail-grid article:first-child,.case-detail-grid article:nth-child(3){min-height:0;padding:28px 0 36px;border-left:0;border-right:0;border-bottom:1px solid var(--line)}.case-detail-grid b{margin-bottom:36px}.case-next h2{font-size:clamp(50px,14vw,78px)}
  .case-product-story{height:265vh}.case-stage{min-height:620px}.story-scene{left:22px;right:22px;max-width:none}.story-scene-intro{top:110px;width:auto}.story-scene-intro .case-kicker{margin-bottom:34px}.story-scene-intro h1{font-size:clamp(43px,12vw,62px)}.story-scene-intro>p{max-width:90%;font-size:14px}.story-scene-shift{top:120px;width:auto;transform:translateY(calc((1 - var(--shift-opacity))*30px))}.story-scene-shift h2{font-size:clamp(42px,11vw,60px)}.story-scene-shift p{font-size:14px}.product-motion img{width:118vw;max-width:none}.product-main{right:-30vw;bottom:-2vh}.product-echo{left:-62vw;top:36vh}.product-halo{width:94vw;right:-36vw;top:38vh}.story-progress{right:22px;bottom:24px}.story-progress span{display:none}.case-fact-inner{grid-template-columns:1fr 1fr}.case-fact-inner>div{min-height:135px;padding:24px 18px;border-bottom:1px solid var(--line)}.case-fact-inner>div:nth-child(3){border-left:1px solid var(--line)}.case-fact-inner strong{font-size:17px}
  .system-sticky{padding-left:18px;padding-right:18px}.phase{height:57vh;padding:25px}.phase h3{font-size:42px}
  html[lang="zh-CN"] .system-top h2{font-size:clamp(30px,8.5vw,34px);white-space:nowrap}
  .loop-step{grid-template-columns:38px 1fr;gap:12px}.loop-step strong{font-size:21px}
  .cta h2{font-size:clamp(54px,16vw,82px)}.contact-line{align-items:flex-start;flex-direction:column}.footer{padding-bottom:34px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.orbit{animation:none}.reveal{opacity:1;transform:none;transition:none}.case-product-story{height:auto;--intro-opacity:1;--story-dark:0}.case-stage{position:relative}.story-scene-shift,.product-echo{display:none}.product-main{transform:none;right:-10vw}.story-progress{display:none}}