/* /ads/ — internet & advertising page */
:root{--o:#F4511E;--o2:#FF7A3D;--bg:#060606;--pn:#131313;--ln:rgba(255,255,255,.1);--t:#fff;--m:#9b9b9b;
  --ff:"Manrope","Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;--pad:64px;--col:35%}
:root:lang(zh-Hans){--ff:"Manrope","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif}
:lang(zh-Hans) [lang="ja"]{font-family:"Manrope","Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans SC",sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--t);font:400 1rem/1.75 var(--ff);-webkit-font-smoothing:antialiased;overflow-x:clip}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,dl,dd,figure{margin:0}ul{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--o2);outline-offset:3px}
.skip{position:fixed;left:12px;top:-60px;z-index:99;background:#fff;color:#000;padding:8px 14px;border-radius:6px}.skip:focus{top:12px}
.wrap{padding-inline:var(--pad);max-width:1680px;margin-inline:auto}
.g{display:grid;grid-template-columns:var(--col) minmax(0,1fr)}
h1,h2{text-wrap:balance;font-weight:300;letter-spacing:-.02em;line-height:1.16;font-feature-settings:"palt"}
h1{font-size:clamp(2.5rem,5.3vw,4.9rem)}
h2{font-size:clamp(2rem,4.3vw,4rem)}
.sub,.lead{color:var(--m);max-width:34em}
.sub{margin-top:32px}

/* pill label */
.pill{display:inline-flex;align-items:center;gap:7px;padding:1px 11px 1px 5px;border-radius:99px;background:rgba(244,81,30,.2);color:#ffd9c7;font-size:.72rem;letter-spacing:.06em;font-weight:500;line-height:1.7;white-space:nowrap}
.pill i{width:11px;height:11px;border-radius:50%;background:var(--o);box-shadow:inset 0 0 0 2px rgba(0,0,0,.35),0 0 8px var(--o)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 28px;border-radius:99px;background:#fff;color:#000;font-size:.875rem;font-weight:600;white-space:nowrap;transition:background .25s,color .25s,transform .25s}
.btn:hover{background:var(--o);color:#fff}
.btn--d{background:rgba(32,32,32,.86);color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.btn--d:hover{background:#fff;color:#000}

/* nav */
.nav{position:fixed;inset:0 0 auto;z-index:50;height:72px;padding-inline:var(--pad);display:grid;grid-template-columns:var(--col) 1fr auto;align-items:center;border-bottom:1px solid var(--ln)}
.nav::before{content:"";position:absolute;inset:0 0 -28px;z-index:-1;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);-webkit-mask:linear-gradient(#000 55%,transparent);mask:linear-gradient(#000 55%,transparent);background:linear-gradient(rgba(6,6,6,.55),rgba(6,6,6,0))}
.nav__logo{justify-self:start;line-height:0;margin-left:-4px}.nav__logo img{height:30px;width:auto}
.nav__l{display:flex;gap:40px;padding-left:34px;font-size:.875rem;font-weight:500;color:#cfcfcf}
.nav__l a{transition:color .2s}.nav__l a:hover{color:#fff}
.nav__r{display:flex;align-items:center;gap:22px}
.lang{display:flex;align-items:center;gap:7px;font-size:.78rem;font-weight:500;letter-spacing:.04em}
.lang i{opacity:.4;font-style:normal}.lang a{opacity:.55;transition:opacity .2s}.lang a:hover{opacity:1}
.lang a[aria-current]{opacity:1;text-decoration:underline;text-underline-offset:4px}
.nav__btn{display:none;width:40px;height:40px;padding:0;border:0;background:none;color:#fff;cursor:pointer;position:relative}
.nav__btn i{position:absolute;left:9px;width:22px;height:1.5px;background:currentColor;transition:transform .3s}
.nav__btn i:first-child{top:16px}.nav__btn i:last-child{top:23px}
.nav__btn[aria-expanded="true"] i:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav__btn[aria-expanded="true"] i:last-child{transform:translateY(-3.5px) rotate(-45deg)}
.menu{position:fixed;inset:72px 0 0;z-index:49;background:rgba(6,6,6,.96);padding:24px var(--pad);display:flex;flex-direction:column}
.menu[hidden]{display:none}
.menu a{padding:18px 0;border-bottom:1px solid var(--ln);font-size:1.25rem;font-weight:300}

/* curtain backdrop (hero + contact) */
.curtain{position:relative;isolation:isolate;overflow:hidden;background:#150400}
.curtain::before{content:"";position:absolute;inset:-4% -2%;z-index:-2;filter:blur(7px);
  background:
   repeating-linear-gradient(90deg,rgba(0,0,0,.55) 0,rgba(0,0,0,0) 9vw,rgba(255,170,110,.22) 16.4vw,rgba(0,0,0,.6) 16.6vw,rgba(0,0,0,.55) 17vw),
   repeating-linear-gradient(90deg,#3a0d00 0,#b93b04 5.5vw,#f4511e 9.6vw,#ff8a4a 10.4vw,#3a0d00 10.6vw)}
.curtain__c{position:absolute;inset:0 -1%;width:102%;height:100%;z-index:-1;filter:blur(3px)}
.curtain.is-live{background:#050100}.curtain.is-live::before{display:none}
.curtain::after{content:"";position:absolute;inset:0;z-index:-1}

/* hero */
.hero{min-height:max(100svh,680px);display:flex;align-items:flex-end;padding:140px 0 64px}
.hero::after{background:radial-gradient(110% 85% at 0% 100%,rgba(0,0,0,.9) 0,rgba(0,0,0,.6) 34%,rgba(0,0,0,0) 66%),linear-gradient(rgba(0,0,0,.3),rgba(0,0,0,0) 26%)}
.hero__t{width:100%;position:relative;pointer-events:none}.hero__t a{pointer-events:auto}
.hero h1{margin:14px 0 26px}
.hero .lead{color:#c9c2be}
.btns{display:flex;gap:12px;margin-top:36px;flex-wrap:wrap}
.hero__cards{position:absolute;inset:0;z-index:0;cursor:grab;touch-action:pan-y;will-change:transform}
.hero__cards.is-drag{cursor:grabbing}
.hero__cards figure{position:absolute;left:var(--x);top:var(--y);width:var(--w);aspect-ratio:9/15;border-radius:22px;overflow:hidden;border:3px solid rgba(255,140,90,.35);background:#200;translate:var(--px,0) var(--py,0);animation:bob 9s ease-in-out infinite;animation-delay:calc(var(--d)*-4s);transition:translate .5s cubic-bezier(.2,.7,.2,1)}
.hero__cards figure::after{content:"";position:absolute;inset:0;background:linear-gradient(rgba(244,81,30,.34),rgba(244,81,30,.12));mix-blend-mode:multiply}
.hero__cards img{width:100%;height:100%;object-fit:cover;pointer-events:none;-webkit-user-drag:none;user-select:none}
.hero__hint{position:absolute;left:50%;top:50%;width:64px;margin:-32px;color:rgba(255,255,255,.55);pointer-events:none}
@keyframes bob{50%{transform:translateY(-14px)}}

/* dark body + drifting glow */
.dk{position:relative;isolation:isolate}
.glow{position:sticky;top:0;height:100vh;margin-bottom:-100vh;z-index:-1;pointer-events:none;overflow:hidden}
.glow i{position:absolute;left:18%;top:22%;width:46vw;height:30vw;border-radius:50%;background:radial-gradient(closest-side,rgba(255,150,100,.95),rgba(244,81,30,.55) 45%,rgba(244,81,30,0));filter:blur(60px);rotate:-34deg;animation:drift 16s ease-in-out infinite alternate}
@keyframes drift{to{transform:translate(9vw,7vh) scale(.82)}}
.sec{padding-block:150px}
.sec+.sec{padding-top:40px}
.g__l>.pill{margin-top:.9em}

/* six-cell grid */
.cells{display:grid;grid-template-columns:repeat(3,1fr);margin-top:96px;border-left:1px solid var(--ln);border-top:1px solid var(--ln)}
.cells li{height:236px;display:flex;align-items:center;justify-content:center;gap:10px;border-right:1px solid var(--ln);border-bottom:1px solid var(--ln);font-size:1.12rem;font-weight:500;text-align:center;padding:0 12px}
.ic{width:26px;height:26px;flex:none;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* comparison */
.vs{display:grid;grid-template-columns:1fr 1fr;margin-top:96px;align-items:end}
.vs>div{position:relative;border:1px solid var(--ln);padding:92px 32px 44px;font-size:clamp(1.05rem,1.55vw,1.4rem);font-weight:300;line-height:1.6}
.vs span{position:absolute;left:32px;top:0;padding:3px 9px;font-size:.75rem;font-weight:500;letter-spacing:.04em;background:#232323;color:#d6d6d6}
.vs__a{border-color:var(--o)!important;padding-top:124px!important}
.vs__a span{background:var(--o);color:#fff}
.vs__b{color:#b9b9b9;border-left:0!important}
.note{display:flex;justify-content:space-between;align-items:center;gap:32px;margin-top:96px;color:var(--m)}
.note p{max-width:27em}

/* solutions */
.sol{display:grid;grid-template-columns:var(--col) minmax(0,1fr);padding-top:150px}
.sol__l{position:sticky;top:120px;align-self:start;max-width:230px;color:var(--m);padding-bottom:40px}
.ibox{display:grid;place-items:center;width:48px;height:48px;background:#1c1c1c;color:var(--o);margin-bottom:56px}
.sol__l .btn{margin-top:36px}
.sol__r h3{font-size:clamp(1.5rem,2.2vw,2rem);font-weight:300;letter-spacing:-.01em}
.facts{display:grid;grid-template-columns:repeat(3,1fr);margin-top:44px}
.facts>div{padding:4px 28px 6px;border-left:1px solid var(--ln)}
.facts>div:first-child{padding-left:0;border:0}
.facts b,.case__k b{display:block;font-size:clamp(1.5rem,2.3vw,2.1rem);font-weight:300;color:var(--o2);line-height:1.3}
.facts span,.case__k span{display:block;margin-top:8px;font-size:.875rem;color:var(--m);line-height:1.6}
.say{margin-top:56px;font-size:clamp(1.1rem,1.7vw,1.5rem);font-weight:300;line-height:1.65;max-width:30em}
.media{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:64px}
.media figure{aspect-ratio:9/15;border-radius:22px;overflow:hidden;border:3px solid #1d1d1d;background:#111}
.media img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s cubic-bezier(.2,.7,.2,1)}
.media figure:hover img{transform:scale(1.05)}

/* workflow */
.wf{background:var(--pn);padding:150px 0;border-block:1px solid var(--ln)}
.steps{display:grid;grid-template-columns:1fr 1fr;margin-top:110px;align-items:start}
.steps__c{display:flex;flex-direction:column}
.steps__c+.steps__c{margin:62px 0 0 -1px}
.step{position:relative;border:1px solid var(--ln);padding:56px 32px 44px;margin-top:-1px}
.step__n{position:absolute;left:0;top:0;padding:2px 8px;background:#2a2a2a;font-size:.75rem;font-weight:500;color:#ddd}
.art{width:min(100%,380px);margin:0 auto 36px;overflow:visible;fill:none;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 9px rgba(244,81,30,.6)) drop-shadow(0 0 28px rgba(244,81,30,.3))}
.art .fl,.art .fr,.art .ft,.art .ln{stroke:var(--o2);stroke-width:1.1}
.art .ft{fill:rgba(255,160,105,.5)}
.art .hot{stroke:#ffd9c2;stroke-width:1.8}
.art .fill{fill:#ffb48a}
.art .dim{stroke:rgba(255,180,140,.6);stroke-width:1}
.art .grid{stroke:rgba(255,140,90,.26);stroke-width:1}
.art .rg{stroke:var(--o2);stroke-width:1.2;opacity:calc(.8 - var(--k)*.17);animation:artr 3.6s ease-in-out infinite;animation-delay:calc(var(--k)*.45s)}
.art .orbit{stroke:rgba(255,150,100,.6);stroke-width:1.1;stroke-dasharray:3 7}
.art .orb{offset-rotate:0deg;animation:arto 9s linear infinite}
.art .flt{animation:artf 6s ease-in-out infinite;animation-delay:calc(var(--k,0)*-1.6s)}
@keyframes artf{50%{transform:translateY(-7px)}}
@keyframes artr{50%{opacity:.12}}
@keyframes arto{from{offset-distance:0%}to{offset-distance:100%}}
.step h3{font-size:1.5rem;font-weight:300}
.step p{margin-top:16px;color:var(--m);font-size:.95rem;max-width:23em}

/* cases */
.cases{margin-top:96px}
.case{border-bottom:1px solid var(--ln)}
.case summary,.q summary{list-style:none;cursor:pointer}
.case summary::-webkit-details-marker,.q summary::-webkit-details-marker{display:none}
.case summary{display:grid;grid-template-columns:var(--col) minmax(0,1fr) 24px;align-items:center;padding:44px 0;font-weight:500}
.case summary small{font-size:.72rem;letter-spacing:.08em;color:var(--m);font-weight:500}
.tog{width:24px;height:24px;position:relative;color:var(--o2);transition:rotate .35s}
.tog::before,.tog::after{content:"";position:absolute;left:11px;top:3px;width:1.4px;height:18px;background:currentColor}
.tog::after{rotate:90deg}
.case[open] .tog{rotate:45deg}
.case__b{display:grid;grid-template-columns:var(--col) minmax(0,1fr);padding:36px 0 88px;border-top:1px solid var(--ln)}
.case__k{display:grid;gap:34px;align-content:start;padding-right:32px}
.case__c h3{font-size:clamp(1.4rem,2.3vw,2.1rem);font-weight:300;line-height:1.4;max-width:21em}
.case__c>p{margin-top:36px;color:var(--m);max-width:52em}

/* faq */
.qs{margin-top:72px}
.q summary{display:grid;grid-template-columns:var(--col) minmax(0,1fr);align-items:center;padding:20px 0;font-size:clamp(1.05rem,1.45vw,1.3rem);font-weight:300}
.qi{width:22px;height:22px;color:#8a8a8a;transition:rotate .35s,color .35s}
.q[open] .qi{rotate:45deg;color:var(--o2)}
.q p{margin-left:var(--col);padding:4px 0 28px;color:var(--m);max-width:40em}

/* contact + footer */
.end{padding:150px 0 56px;margin-top:40px}
.end::after{background:linear-gradient(90deg,rgba(0,0,0,.55),rgba(0,0,0,0) 45%),linear-gradient(rgba(0,0,0,0) 40%,rgba(0,0,0,.72))}
.end__m{margin-top:110px;align-items:start}
.end__i{padding-right:48px;color:rgba(255,255,255,.72)}
.end__i dl{margin-top:44px;display:grid;gap:28px}
.end__i dt,.panel__k,.ft h4{font-size:.72rem;letter-spacing:.08em;color:rgba(255,255,255,.6);font-weight:500;margin:0 0 6px}
.end__i dd{color:#fff;font-weight:500;line-height:1.7}
.panel{background:rgba(255,255,255,.14);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);padding:40px 32px 44px}
.panel__n{display:block;font-size:clamp(2.4rem,6.2vw,5.6rem);font-weight:300;letter-spacing:-.02em;line-height:1.1;white-space:nowrap}
.panel__s{margin-top:14px;color:rgba(255,255,255,.75);font-size:.9rem}
.panel__b{margin-top:36px;min-width:260px}
.ft{margin-top:120px;font-size:.875rem}
.ft__logo{display:inline-block;line-height:0;margin-left:-4px}.ft__logo img{height:34px;width:auto}
.ft .g__l p{margin-top:20px;color:rgba(255,255,255,.7)}
.ft .ft__c{margin-top:28px}
.ft__n{display:flex;gap:96px;flex-wrap:wrap}
.ft__n a{display:block;font-weight:600;padding:5px 0}
.ft__n .lang a{display:inline}
.ft h4{margin-bottom:18px}

/* scroll reveal (only once JS is running) */
.js .rv{opacity:0;transform:translateY(22px);filter:blur(10px);transition:opacity .9s,transform .9s cubic-bezier(.2,.7,.2,1),filter .9s}
.js .rv.in{opacity:1;transform:none;filter:none}

@media (max-width:1100px){:root{--pad:32px;--col:28%}.nav__l{gap:26px;padding-left:20px}}
@media (max-width:860px){
  :root{--pad:20px;--col:0px}
  .g,.sol,.case__b{display:block}
  .g__l>.pill{margin:0 0 18px}
  .nav{grid-template-columns:1fr auto}.nav__l,.nav__c{display:none}.nav__btn{display:block}.nav__r{gap:10px}
  .nav__logo img{height:28px}
  .hero{padding:0 0 40px;min-height:max(100svh,640px);text-align:center}
  .hero::after{background:linear-gradient(rgba(0,0,0,.15),rgba(0,0,0,0) 30%,rgba(0,0,0,.9) 86%)}
  .hero .lead{margin-inline:auto}.hero .lead br{display:none}.btns{justify-content:center}
  .hero__cards{cursor:default}
  .hero__cards figure{top:96px;width:27%;left:calc(8% + var(--n)*29%);border-radius:18px}
  .hero__cards figure:nth-child(1){--n:0}.hero__cards figure:nth-child(2){--n:1}.hero__cards figure:nth-child(3){--n:2}
  .hero__cards figure:nth-child(n+4),.hero__hint{display:none}
  .sec,.wf{padding-block:88px}.sec+.sec{padding-top:8px}
  .glow i{left:-10%;top:18%;width:110vw;height:70vw}
  .cells{grid-template-columns:1fr 1fr;margin-top:48px}.cells li{height:132px;font-size:.9rem;flex-direction:column}
  .vs{grid-template-columns:1fr;margin-top:48px}.vs>div{padding:64px 20px 32px!important}.vs span{left:20px}.vs__b{border-left:1px solid var(--ln)!important;border-top:0!important}
  .note{flex-direction:column;align-items:flex-start;margin-top:48px}
  .sol{padding-top:88px}
  .sol__l{position:static;max-width:none;display:grid;grid-template-columns:48px 1fr;gap:6px 16px;align-items:center;padding-bottom:28px}
  .ibox{margin:0}.sol__l .btn{display:none}
  .facts{grid-template-columns:1fr;margin-top:28px}
  .facts>div{display:grid;grid-template-columns:38% 1fr;align-items:center;padding:16px 0!important;border:0!important;border-bottom:1px solid var(--ln)!important}
  .facts span{margin:0}
  .say{margin-top:36px}.media{margin-top:36px;gap:6px}.media figure{border-radius:14px;border-width:2px}
  .steps{display:flex;flex-direction:column;margin-top:56px}.steps__c{display:contents}.step{padding:48px 24px 36px}
  .cases{margin-top:48px}
  .case summary{grid-template-columns:minmax(0,1fr) 24px;gap:6px 12px;padding:26px 0}.case summary small{grid-column:1/-1}
  .case__b{padding:28px 0 56px}.case__k{padding:0 0 36px;gap:0}
  .case__k>div{display:grid;grid-template-columns:38% 1fr;align-items:center;padding:14px 0;border-bottom:1px solid var(--ln)}.case__k span{margin:0}
  .qs{margin-top:36px}
  .q summary{grid-template-columns:minmax(0,1fr) 22px;gap:16px}.q summary span{order:-1}
  .q p{margin-left:0}
  .end{padding:88px 0 40px}.end__m{margin-top:44px}.end__i{padding:0 0 36px}
  .panel{padding:28px 20px 32px}.panel__b{width:100%;min-width:0}
  .ft{margin-top:72px}.ft__n{gap:40px 56px;margin-top:44px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero__cards figure,.glow i,.art *{animation:none}
  .js .rv{opacity:1;transform:none;filter:none;transition:none}
}