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var(--mono);color:#a7b4b3;letter-spacing:.06em}@keyframes slowZoom{to{transform:scale(1.09)}}
@media(max-width:760px){.site-header{padding:0 22px;height:66px}.brand span{font-size:19px}nav{display:none;position:absolute;top:66px;left:0;right:0;background:var(--ink);padding:22px;flex-direction:column;align-items:flex-start;gap:19px}nav.open{display:flex}.menu-toggle{display:flex;gap:8px;align-items:center;border:0;background:none;color:white;font:10px var(--mono);text-transform:uppercase;letter-spacing:.1em}.menu-toggle span{width:13px;height:1px;background:var(--orange)}.hero{min-height:680px}.hero-copy{left:28px;right:28px;top:22%}.hero h1{font-size:59px}.lede{font-size:14px;margin-top:24px}.hero-data{left:28px;bottom:35px;right:auto}.scroll-cue{display:none}.section-pad{padding-left:28px;padding-right:28px}.intro{padding-top:90px;padding-bottom:90px}.intro-grid,.watch{grid-template-columns:1fr;gap:25px}.intro h2,.watch h2{font-size:42px}.section-heading{display:block}.section-heading>p:last-child{margin-top:22px}.stories{padding-top:70px;padding-bottom:70px}.story-grid{grid-template-columns:1fr}.story-large .story-visual,.story-visual{height:330px}.story-title h3{font-size:23px}.method{padding-top:75px}.method-head{grid-template-columns:1fr}.method h2{font-size:49px}.stages{overflow:auto;margin-top:65px;padding:0 28px;width:100%;grid-template-columns:repeat(4,155px)}.stage-detail{grid-template-columns:1fr;gap:16px;min-height:330px;padding-top:38px;padding-bottom:38px}.stage-detail h3{font-size:28px}.watch{padding-top:85px;padding-bottom:85px}.video-card{min-height:370px;margin-top:8px;padding:25px}.video-card h3{font-size:27px}.play{top:22px;right:22px}.notes{padding-top:70px;padding-bottom:70px}.note-grid{display:block}.note-grid article,.note-grid article+article{border-right:0;border-bottom:1px solid var(--line);min-height:190px;padding:25px 0}.note-grid article:last-child{border-bottom:0}footer{padding:50px 28px 24px;grid-template-columns:1fr;gap:25px}footer small{margin-top:12px}}
.build-lab{background:#0b2428;color:#eef0e9;padding:115px 0 0;overflow:hidden}.build-lab-head{display:grid;grid-template-columns:1.1fr .55fr;gap:8vw;padding-bottom:58px}.build-lab h2{font-size:clamp(36px,4.5vw,67px);line-height:1.02;letter-spacing:-.06em;margin:0}.build-lab-head>div:last-child{padding-top:39px}.build-lab-head>div:last-child>p{font-size:14px;line-height:1.78;color:#c5d2d0;max-width:340px;margin:0 0 25px}.replay-build{background:none;border:0;border-bottom:1px solid var(--orange);color:#f1eee7;padding:0 0 7px;font:700 11px var(--sans);cursor:pointer}.replay-build span{font-size:16px;color:var(--orange);margin-left:11px}.blueprint-stage{height:590px;position:relative;background:#102f34;overflow:hidden;border-top:1px solid rgba(238,240,233,.22)}.blueprint-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(161,211,209,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(161,211,209,.13) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(90deg,#000,rgba(0,0,0,.42) 66%,transparent)}.contour{position:absolute;border:1px solid rgba(114,194,190,.24);border-radius:50%;transform:rotate(-12deg)}.contour-one{width:640px;height:245px;bottom:-145px;left:6%}.contour-two{width:820px;height:320px;bottom:-205px;left:14%}.stage-label{position:absolute;top:29px;z-index:3;font:9px var(--mono);letter-spacing:.12em;color:#aac5c2;display:flex;gap:8px;align-items:center}.stage-label b{color:var(--orange);font-weight:500}.label-plan{left:9.2vw}.label-structure{left:48.5%}.label-finish{right:9.2vw}.bridge-model{position:absolute;left:50%;bottom:112px;width:min(1080px,82vw);height:330px;transform:translateX(-50%)}.deck-line{position:absolute;height:10px;left:0;right:0;bottom:47px;background:var(--orange);box-shadow:0 0 0 2px rgba(255,91,46,.22),0 7px 15px rgba(0,0,0,.24);transform-origin:left;animation:deckBuild 8.5s cubic-bezier(.24,.82,.32,1) infinite}.tower{position:absolute;bottom:57px;width:42px;height:0;background:linear-gradient(90deg,#a9d3cc,#e2f0e8 55%,#6caaa6);transform-origin:bottom;animation:towerRaise 8.5s cubic-bezier(.2,.8,.2,1) infinite}.tower:before,.tower:after{content:'';position:absolute;width:5px;height:100%;background:rgba(7,42,46,.42);top:0}.tower:before{left:10px}.tower:after{right:9px}.tower i{position:absolute;left:-7px;right:-7px;height:4px;background:#c3e0d8}.tower i:first-child{top:34%}.tower i:last-child{top:67%}.tower-left{left:21%}.tower-right{right:21%;animation-delay:.22s}.main-cable{position:absolute;bottom:102px;width:31.5%;height:195px;border-top:5px solid #e2f0e8;opacity:0;transform-origin:bottom;animation:cableLift 8.5s ease-in-out infinite}.cable-left{left:21%;border-radius:100% 0 0 0;transform:skewY(23deg);animation-delay:1.5s}.cable-right{right:21%;border-radius:0 100% 0 0;transform:skewY(-23deg);animation-delay:1.7s}.hangers{position:absolute;bottom:57px;width:25%;height:130px;opacity:0;background:repeating-linear-gradient(90deg,transparent 0 19px,rgba(222,240,232,.9) 20px 22px);mask-image:linear-gradient(#000 60%,transparent);animation:appear 8.5s linear infinite}.hangers-left{left:22%;transform:skewY(20deg);animation-delay:2.3s}.hangers-right{right:22%;transform:skewY(-20deg);animation-delay:2.45s}.water-line{position:absolute;left:-10%;right:-10%;height:77px;bottom:-26px;opacity:0;background:repeating-linear-gradient(0deg,rgba(87,176,186,.17) 0 2px,transparent 2px 16px);transform:skewX(-24deg);animation:appear 8.5s linear infinite 3.35s}.sun-disc{position:absolute;right:13%;bottom:134px;width:104px;height:104px;background:#ffd49c;border-radius:50%;opacity:0;filter:blur(.2px);animation:sunRise 8.5s ease-out infinite}.vehicle{position:absolute;width:28px;height:7px;bottom:50px;background:#f6e4c8;opacity:0;animation:drive 8.5s linear infinite}.vehicle:after{content:'';position:absolute;right:-5px;top:2px;border-left:5px solid #f6e4c8;border-top:2px solid transparent;border-bottom:2px solid transparent}.vehicle-one{left:17%;animation-delay:4.2s}.vehicle-two{left:32%;animation-delay:5.1s}.lab-caption{position:absolute;z-index:3;left:9.2vw;bottom:25px;margin:0;color:#a9c1be;font:9px var(--mono);letter-spacing:.08em}.lab-caption span{display:inline-block;width:26px;height:1px;background:var(--orange);vertical-align:middle;margin-right:9px}@keyframes deckBuild{0%,7%{transform:scaleX(0);opacity:.6}27%,100%{transform:scaleX(1);opacity:1}}@keyframes towerRaise{0%,12%{height:0;opacity:0}28%,100%{height:255px;opacity:1}}@keyframes cableLift{0%,21%{opacity:0;transform:scaleY(.05) skewY(23deg)}33%,100%{opacity:1;transform:scaleY(1) skewY(23deg)}}@keyframes appear{0%,30%{opacity:0}42%,100%{opacity:1}}@keyframes sunRise{0%,43%{opacity:0;transform:translateY(75px) scale(.5)}56%,100%{opacity:.88;transform:translateY(0) scale(1)}}@keyframes drive{0%,50%{opacity:0;transform:translateX(0)}53%{opacity:1}83%{opacity:1;transform:translateX(590px)}88%,100%{opacity:0;transform:translateX(640px)}}.blueprint-stage.replay .deck-line,.blueprint-stage.replay .tower,.blueprint-stage.replay .main-cable,.blueprint-stage.replay .hangers,.blueprint-stage.replay .water-line,.blueprint-stage.replay .sun-disc,.blueprint-stage.replay .vehicle{animation:none}.blueprint-stage.replay.run .deck-line{animation:deckBuild 8.5s cubic-bezier(.24,.82,.32,1)}.blueprint-stage.replay.run .tower{animation:towerRaise 8.5s cubic-bezier(.2,.8,.2,1)}.blueprint-stage.replay.run .tower-right{animation-delay:.22s}.blueprint-stage.replay.run .main-cable{animation:cableLift 8.5s ease-in-out}.blueprint-stage.replay.run .cable-left{animation-delay:1.5s}.blueprint-stage.replay.run .cable-right{animation-delay:1.7s}.blueprint-stage.replay.run .hangers{animation:appear 8.5s linear}.blueprint-stage.replay.run .hangers-left{animation-delay:2.3s}.blueprint-stage.replay.run .hangers-right{animation-delay:2.45s}.blueprint-stage.replay.run .water-line{animation:appear 8.5s linear 3.35s}.blueprint-stage.replay.run .sun-disc{animation:sunRise 8.5s ease-out}.blueprint-stage.replay.run .vehicle{animation:drive 8.5s linear}.blueprint-stage.replay.run .vehicle-one{animation-delay:4.2s}.blueprint-stage.replay.run .vehicle-two{animation-delay:5.1s}
@media(max-width:760px){.build-lab{padding-top:74px}.build-lab-head{grid-template-columns:1fr;padding-bottom:38px}.build-lab h2{font-size:42px}.build-lab-head>div:last-child{padding-top:0}.blueprint-stage{height:445px}.blueprint-grid{background-size:30px 30px}.bridge-model{width:145vw;height:260px;bottom:95px}.tower{width:25px}.tower:before{left:6px}.tower:after{right:5px}.tower i{left:-4px;right:-4px;height:3px}.main-cable{height:145px}.hangers{height:95px}.stage-label{top:18px;font-size:7px}.label-plan{left:28px}.label-structure{left:43%}.label-finish{right:14px}.stage-label span{display:none}.sun-disc{width:66px;height:66px;right:8%;bottom:109px}.lab-caption{left:28px;bottom:18px;font-size:7px}.vehicle{bottom:50px}.build-lab .eyebrow{margin-bottom:20px}}
@media(prefers-reduced-motion:reduce){.blueprint-stage *{animation:none!important}.deck-line{transform:scaleX(1)}.tower{height:255px;opacity:1}.main-cable,.hangers,.water-line,.sun-disc,.vehicle{opacity:1}}
/* Construction sequence — four inspectable, progressive site states */
.build-lab{padding:108px 0 95px;background:#0d2528}.build-lab-head{padding-bottom:52px}.construction-shell{max-width:1540px;margin:auto}.construction-tabs{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid rgba(217,238,231,.2);border-bottom:0}.construction-tab{min-height:101px;text-align:left;border:0;border-right:1px solid rgba(217,238,231,.2);padding:18px 18px 15px;background:#112e31;color:#e9efe9;display:grid;gap:4px;cursor:pointer;transition:background .3s,color .3s}.construction-tab:last-child{border-right:0}.construction-tab span{font:9px var(--mono);color:#90aaa8}.construction-tab b{font-size:14px;letter-spacing:-.025em}.construction-tab small{font:10px var(--mono);color:#91a8a6}.construction-tab.active{background:#edebe4;color:#152d30}.construction-tab.active span{color:var(--orange)}.construction-tab.active small{color:#55706d}.construction-visual{height:545px;position:relative;overflow:hidden;background:linear-gradient(#90bdcb 0%,#c3d5d2 39%,#6c9da2 40%,#496f77 100%);isolation:isolate;transition:background 1s ease}.scene-sky{position:absolute;inset:0;background:linear-gradient(145deg,rgba(251,216,165,.86),transparent 41%),linear-gradient(180deg,transparent 55%,rgba(40,82,88,.18));z-index:-4}.scene-sky i{position:absolute;width:200px;height:22px;border-radius:50%;background:rgba(255,255,255,.42);filter:blur(9px)}.scene-sky i:nth-child(1){left:12%;top:17%}.scene-sky i:nth-child(2){left:47%;top:8%;width:315px}.scene-sky i:nth-child(3){right:4%;top:28%;width:170px}.scene-haze{position:absolute;z-index:-3;inset:30% 0 0;background:linear-gradient(0deg,rgba(36,80,88,.2),rgba(246,242,224,.34) 50%,transparent);mix-blend-mode:screen}.ridge{position:absolute;z-index:-2;bottom:165px;width:45%;height:205px;background:#345d60;filter:drop-shadow(0 7px 10px rgba(11,38,42,.2));clip-path:polygon(0 70%,12% 56%,23% 62%,35% 33%,43% 46%,56% 14%,67% 45%,76% 35%,90% 62%,100% 47%,100% 100%,0 100%)}.ridge-left{left:0}.ridge-right{right:0;transform:scaleX(-1);opacity:.75}.water{position:absolute;z-index:-1;bottom:0;left:0;right:0;height:180px;background:linear-gradient(#4b7d85,#244f59)}.water i{display:block;height:1px;margin:21px 0;background:linear-gradient(90deg,transparent,rgba(221,243,233,.5),transparent);transform:skewX(-15deg)}.shore{position:absolute;bottom:0;width:20%;height:173px;background:#263f3d;z-index:1}.shore-left{left:0;clip-path:polygon(0 12%,27% 20%,54% 44%,100% 61%,100% 100%,0 100%)}.shore-right{right:0;clip-path:polygon(0 61%,45% 44%,73% 20%,100% 12%,100% 100%,0 100%)}.site-grid{position:absolute;z-index:2;left:0;bottom:0;width:36%;height:205px;opacity:.7;background-image:linear-gradient(rgba(134,224,220,.26) 1px,transparent 1px),linear-gradient(90deg,rgba(134,224,220,.26) 1px,transparent 1px);background-size:20px 20px;clip-path:polygon(0 13%,80% 54%,100% 100%,0 100%);transition:opacity .5s}.survey-line{position:absolute;z-index:3;bottom:108px;left:8%;width:35%;height:1px;background:#b4f2e7;transform-origin:left;transform:rotate(-11deg);box-shadow:0 0 8px #9ce7de}.survey-b{left:9%;bottom:71px;width:37%;transform:rotate(16deg)}.survey-stake{z-index:4;position:absolute;bottom:64px;height:74px;width:3px;background:#ffa54d;box-shadow:0 0 0 1px rgba(66,42,22,.22)}.survey-stake:after{content:'';position:absolute;left:-5px;top:8px;width:12px;height:12px;border:1px solid #ffdb9f;border-radius:50%}.stake-a{left:17%}.stake-b{left:27%;bottom:102px}.stake-c{left:37%;bottom:78px}.caisson{position:absolute;z-index:2;bottom:73px;width:32px;height:0;background:repeating-linear-gradient(90deg,#8ea8a2 0 4px,#d7dbce 5px 11px);box-shadow:inset 0 0 0 2px rgba(32,66,67,.25);transform-origin:bottom;transition:height .75s cubic-bezier(.2,.85,.25,1)}.caisson:before{content:'';position:absolute;top:-9px;left:-4px;width:40px;height:10px;background:#d5d6cc;box-shadow:0 3px 4px rgba(0,0,0,.2)}.caisson i{position:absolute;left:8px;width:16px;height:2px;background:rgba(27,62,64,.4)}.caisson i:first-child{top:34%}.caisson i:last-child{top:68%}.caisson-a{left:29%}.caisson-b{left:35%}.caisson-c{right:35%}.caisson-d{right:29%}.tower-real{position:absolute;z-index:5;bottom:73px;width:46px;height:0;opacity:0;background:linear-gradient(90deg,#557e82 0 20%,#e5e5d9 21% 58%,#779b99 59%);transform-origin:bottom;transition:height 1.15s cubic-bezier(.18,.85,.27,1),opacity .45s}.tower-real:before{content:'';position:absolute;top:-20px;left:-4px;width:54px;height:21px;background:#c8d5ce;clip-path:polygon(18% 0,82% 0,100% 100%,0 100%)}.tower-real b{position:absolute;inset:14px 10px;background:repeating-linear-gradient(0deg,rgba(34,71,72,.5) 0 4px,transparent 4px 25px)}.tower-real i{position:absolute;left:-7px;right:-7px;height:6px;background:#d7e3db;box-shadow:0 3px 2px rgba(11,48,50,.2)}.tower-real i:nth-child(2){top:36%}.tower-real i:nth-child(3){top:71%}.tower-real em{position:absolute;inset:0;background:linear-gradient(100deg,transparent 33%,rgba(255,255,255,.32) 35%,transparent 38%)}.tower-real-left{left:29.5%}.tower-real-right{right:29.5%;transition-delay:.12s}.tower-crane{position:absolute;z-index:6;bottom:73px;width:2px;height:0;background:#f09c39;transform-origin:bottom;transition:height .8s ease .45s}.tower-crane:before{content:'';position:absolute;top:0;left:-6px;width:14px;height:8px;background:#ffa847}.tower-crane b{position:absolute;top:5px;left:1px;width:88px;height:3px;background:#e8a140;transform-origin:left;transform:rotate(-5deg)}.tower-crane i{position:absolute;top:6px;left:73px;width:1px;height:84px;background:#d8ebd7}.tower-crane em{position:absolute;top:88px;left:69px;width:10px;height:7px;background:#d76e31}.crane-left{left:34.3%}.crane-right{right:33.2%;transform:scaleX(-1)}.main-cable-real{position:absolute;z-index:4;bottom:173px;width:21.5%;height:152px;border-top:5px solid #e5e5d9;opacity:0;transition:opacity .7s 1s}.cable-real-left{left:32%;border-radius:100% 0 0 0;transform:skewY(28deg)}.cable-real-right{right:32%;border-radius:0 100% 0 0;transform:skewY(-28deg)}.vertical-hangers{position:absolute;z-index:4;bottom:80px;width:17%;height:130px;opacity:0;background:repeating-linear-gradient(90deg,transparent 0 17px,rgba(231,242,231,.85) 18px 20px);mask-image:linear-gradient(#000 57%,transparent);transition:opacity .65s 1.35s}.hangers-real-left{left:32.5%;transform:skewY(25deg)}.hangers-real-right{right:32.5%;transform:skewY(-25deg)}.deck{position:absolute;z-index:6;bottom:70px;height:15px;background:linear-gradient(#e6ded0 0 42%,#5b6e68 44% 73%,#25484c 75%);box-shadow:0 4px 3px rgba(17,44,46,.34);width:0;transition:width .8s cubic-bezier(.2,.8,.2,1) 1.5s}.deck-left{right:50%;transform-origin:right}.deck-right{left:50%;transform-origin:left}.deck-center{left:50%;width:0;transform:translateX(-50%);transition-delay:2.5s}.deck-center i{position:absolute;inset:3px 0 auto;height:2px;background:repeating-linear-gradient(90deg,#f0c266 0 14px,transparent 14px 28px)}.segment{position:absolute;z-index:7;width:52px;height:15px;background:#e0ddd2;box-shadow:0 4px 4px rgba(0,0,0,.25);opacity:0;transition:transform .9s cubic-bezier(.2,.8,.3,1),opacity .4s}.segment-one{left:44%;top:156px;transform:translateY(0)}.segment-two{left:51%;top:118px;transform:translateY(0);transition-delay:.24s}.barge{position:absolute;z-index:5;left:43%;bottom:38px;width:125px;height:28px;background:#183b41;border-radius:2px 2px 28px 10px;transform:translateX(-260px);opacity:0;transition:transform 1s ease,opacity .5s}.barge:after{content:'';position:absolute;top:27px;left:15px;width:90px;height:5px;background:rgba(9,36,42,.58);border-radius:50%}.barge i{position:absolute;top:-15px;width:30px;height:14px;background:#d6d2bd}.barge i:first-child{left:30px}.barge i:nth-child(2){left:64px}.barge b{position:absolute;top:-18px;left:6px;border-left:8px solid transparent;border-right:8px solid transparent;border-bottom:18px solid #de7e35}.barge-crane{position:absolute;z-index:7;left:48%;bottom:63px;width:3px;height:0;background:#e58a32;transform-origin:bottom;transition:height .8s .25s}.barge-crane b{position:absolute;top:0;left:0;width:93px;height:3px;background:#eba146;transform:rotate(-35deg);transform-origin:left}.barge-crane i{position:absolute;left:75px;top:-52px;width:1px;height:78px;background:#e9eee1}.barge-crane em{position:absolute;left:70px;top:22px;width:11px;height:8px;background:#d66c31}.work-boat{position:absolute;z-index:4;right:17%;bottom:46px;width:42px;height:12px;background:#f5f0dc;border-radius:2px 4px 13px 5px;opacity:.6}.work-boat:before{content:'';position:absolute;left:7px;top:-8px;border-left:7px solid transparent;border-right:7px solid transparent;border-bottom:8px solid #f5f0dc}.road-markings{position:absolute;z-index:8;bottom:77px;left:21%;right:21%;height:2px;opacity:0;background:repeating-linear-gradient(90deg,#f3c55e 0 11px,transparent 11px 22px);transition:opacity .4s 2.8s}.car{position:absolute;z-index:9;bottom:83px;width:22px;height:7px;background:#e45031;border-radius:4px 5px 2px 2px;opacity:0}.car:before{content:'';position:absolute;top:-3px;left:6px;width:10px;height:4px;background:#cfe2dd;transform:skewX(-16deg)}.car-a{left:33%}.car-b{left:49%;background:#e9d9be}.car-c{left:62%;background:#324e65}.gulls{position:absolute;right:15%;top:20%;font-size:26px;letter-spacing:10px;color:rgba(255,255,255,.8);opacity:0;transition:opacity .6s 3s}.gulls i{font-style:normal}.scene-caption{position:absolute;z-index:12;left:31px;bottom:27px;color:#f0f1e9;display:flex;gap:14px;align-items:flex-start;max-width:570px;text-shadow:0 2px 4px rgba(0,0,0,.32)}.phase-num{font:10px var(--mono);color:#ffb65c;border-top:1px solid #ffb65c;padding-top:5px}.scene-caption b{font-size:16px;letter-spacing:-.025em}.scene-caption p{font-size:11px;line-height:1.5;margin:3px 0 0;max-width:340px}.phase-time{position:absolute;left:0;top:-31px;font:8px var(--mono);letter-spacing:.12em;color:#e6c989}.scene-progress{position:absolute;z-index:12;right:31px;bottom:31px;display:flex;gap:5px}.scene-progress i{height:3px;width:23px;background:rgba(255,255,255,.35)}.scene-progress i:first-child{background:var(--orange)}
/* progressive construction states */
.phase-0 .caisson{height:104px}.phase-1 .site-grid,.phase-2 .site-grid,.phase-3 .site-grid,.phase-1 .survey-line,.phase-2 .survey-line,.phase-3 .survey-line,.phase-1 .survey-stake,.phase-2 .survey-stake,.phase-3 .survey-stake{opacity:0}.phase-1 .caisson,.phase-2 .caisson,.phase-3 .caisson{height:84px}.phase-1 .tower-real,.phase-2 .tower-real,.phase-3 .tower-real{height:265px;opacity:1}.phase-1 .tower-crane,.phase-2 .tower-crane,.phase-3 .tower-crane{height:290px}.phase-2 .main-cable-real,.phase-3 .main-cable-real,.phase-2 .vertical-hangers,.phase-3 .vertical-hangers{opacity:1}.phase-2 .deck-left,.phase-2 .deck-right,.phase-3 .deck-left,.phase-3 .deck-right{width:29%}.phase-2 .deck-center,.phase-3 .deck-center{width:14%}.phase-2 .segment,.phase-3 .segment{opacity:1;transform:translateY(184px)}.phase-2 .barge,.phase-3 .barge{opacity:1;transform:translateX(0)}.phase-2 .barge-crane,.phase-3 .barge-crane{height:134px}.phase-3{background:linear-gradient(#efb170 0%,#f1d0a4 37%,#799fac 38%,#295b66 100%)}.phase-3 .road-markings,.phase-3 .car,.phase-3 .gulls{opacity:1}.phase-3 .car-a{animation:traffic 5s linear infinite}.phase-3 .car-b{animation:traffic 6.3s linear infinite 1.3s}.phase-3 .car-c{animation:traffic 7.5s linear infinite 2s}.phase-0 .scene-progress i:nth-child(1),.phase-1 .scene-progress i:nth-child(-n+2),.phase-2 .scene-progress i:nth-child(-n+3),.phase-3 .scene-progress i{background:var(--orange)}@keyframes traffic{0%{transform:translateX(-80px)}100%{transform:translateX(380px)}}
@media(max-width:760px){.build-lab{padding:72px 0 60px}.construction-shell{padding:0}.construction-tabs{overflow:auto;grid-template-columns:repeat(4,170px);border-left:0;border-right:0}.construction-tab{min-height:89px}.construction-visual{height:405px}.ridge{bottom:123px;height:158px;width:58%}.water{height:133px}.shore{height:130px;width:26%}.site-grid{height:155px}.scene-caption{left:22px;bottom:18px;max-width:255px}.scene-caption p{font-size:10px;max-width:220px}.scene-progress{right:18px;bottom:20px}.scene-progress i{width:13px}.tower-real{width:27px}.tower-real-left{left:27%}.tower-real-right{right:27%}.tower-crane{display:none}.main-cable-real{bottom:166px;width:24%;height:118px}.cable-real-left{left:29%}.cable-real-right{right:29%}.vertical-hangers{bottom:75px;width:21%;height:104px}.hangers-real-left{left:30%}.hangers-real-right{right:30%}.deck{bottom:66px}.phase-2 .deck-left,.phase-2 .deck-right,.phase-3 .deck-left,.phase-3 .deck-right{width:31%}.barge{left:33%;transform:scale(.7) translateX(-260px)}.phase-2 .barge,.phase-3 .barge{transform:scale(.7)}.barge-crane{left:42%;transform:scale(.7);transform-origin:bottom}.survey-stake{transform:scale(.75);transform-origin:bottom}.site-grid{width:49%}.work-boat{right:7%}.gulls{right:8%;top:13%}}
@media(prefers-reduced-motion:reduce){.car{animation:none!important}}
/* Visual-QA refinements: unmistakable caissons, lifting operation and road commissioning */
.foundation-callout{position:absolute;z-index:11;left:21%;bottom:173px;display:flex;align-items:center;gap:8px;color:#d8fbeb;font:8px var(--mono);letter-spacing:.1em;opacity:1;transition:opacity .3s}.foundation-callout i{display:block;width:77px;height:1px;background:#ccf8e5;transform:rotate(27deg);transform-origin:left}.foundation-callout:before{content:'';width:6px;height:6px;border:1px solid #ffa54d;border-radius:50%}.phase-1 .foundation-callout,.phase-2 .foundation-callout,.phase-3 .foundation-callout{opacity:0}.tower-crane i:after{content:'';position:absolute;left:-3px;bottom:-4px;width:7px;height:7px;border-right:2px solid #f9be65;border-bottom:2px solid #f9be65;transform:rotate(45deg)}.lift-line{position:absolute;z-index:8;left:48.8%;top:85px;width:1px;height:0;background:#eef2e2;opacity:0;transform-origin:top;transition:height .65s .8s,opacity .35s}.lift-line i{position:absolute;bottom:-7px;left:-4px;width:9px;height:9px;border-right:2px solid #ffb250;border-bottom:2px solid #ffb250;transform:rotate(45deg)}.phase-2 .lift-line,.phase-3 .lift-line{height:145px;opacity:1}.phase-2 .segment-one{opacity:1;transform:translateY(36px);outline:2px solid #ffa54d;box-shadow:0 6px 8px rgba(0,0,0,.35)}.phase-2 .segment-two{opacity:1;transform:translateY(140px)}.phase-3 .segment-one,.phase-3 .segment-two{opacity:1;transform:translateY(184px)}.segment b{display:none;white-space:nowrap;font:7px var(--mono);letter-spacing:.06em;color:#ffedc4;position:absolute;top:-15px;left:-2px}.phase-2 .segment-one b{display:block}.phase-3 .deck{height:25px;bottom:63px}.phase-3 .road-markings{bottom:75px;height:3px;left:20%;right:20%;opacity:1}.phase-3 .car{bottom:84px;width:31px;height:10px;border-radius:5px 6px 2px 2px;box-shadow:0 2px 2px rgba(0,0,0,.2)}.phase-3 .car:before{top:-5px;left:8px;width:15px;height:6px}.phase-3 .car:after{content:'';position:absolute;bottom:-3px;left:4px;width:5px;height:5px;background:#15282b;border-radius:50%;box-shadow:18px 0 #15282b}.phase-3 .gulls{opacity:1}@media(max-width:760px){.foundation-callout{left:11%;bottom:149px;font-size:6px}.foundation-callout i{width:42px}.phase-3 .deck{height:19px}.phase-3 .car{transform:scale(.72);transform-origin:bottom left}.lift-line{left:48%}}
/* Final readability pass: foreground lifting crane and commissioned roadway */
.phase-2 .barge-crane,.phase-3 .barge-crane{height:315px;left:46%;z-index:10}.phase-2 .barge-crane b,.phase-3 .barge-crane b{width:205px;height:7px;top:0;left:0;transform:rotate(-56deg);box-shadow:0 2px 0 rgba(104,52,18,.35)}.phase-2 .barge-crane b:after,.phase-3 .barge-crane b:after{content:'';position:absolute;left:0;right:0;top:2px;height:1px;background:#ffdc8d}.phase-2 .barge-crane i,.phase-3 .barge-crane i{left:170px;top:-170px;height:135px;width:2px;background:#f5f0da}.phase-2 .barge-crane em,.phase-3 .barge-crane em{left:164px;top:-36px;width:15px;height:10px;background:#dc682d;box-shadow:0 2px 0 #6c3524}.phase-2 .segment-one{left:56%;top:157px;transform:translateY(36px);width:76px;height:21px}.phase-3 .segment-one{left:56%;top:157px;transform:translateY(184px);width:76px;height:21px}.phase-2 .lift-line,.phase-3 .lift-line{left:60.3%;top:74px;height:119px;z-index:11}.phase-2 .barge:before,.phase-3 .barge:before{content:'FLOATING CRANE';position:absolute;left:12px;top:32px;color:#cae9df;font:7px var(--mono);letter-spacing:.08em;white-space:nowrap}.phase-3 .deck{background:linear-gradient(#f0dfbd 0 15%,#334f50 16% 83%,#18393e 84%);box-shadow:0 5px 5px rgba(9,34,38,.38)}.phase-3 .road-markings{height:11px;bottom:70px;background:linear-gradient(#f5d36e 0 2px,transparent 2px 5px,#f5d36e 5px 7px,transparent 7px 10px);box-shadow:0 0 0 1px rgba(14,42,45,.6)}.phase-3 .car:before{background:#d8f2eb;border:1px solid rgba(11,42,45,.25)}.phase-3 .car:after{box-shadow:18px 0 #15282b,-20px 1px 8px rgba(255,241,190,.58)}@media(max-width:760px){.phase-2 .barge-crane,.phase-3 .barge-crane{left:39%;transform:scale(.58);transform-origin:bottom}.phase-2 .segment-one{left:56%;transform:scale(.65) translateY(50px)}.phase-3 .segment-one{left:56%;transform:scale(.65) translateY(280px)}.phase-2 .lift-line,.phase-3 .lift-line{left:61%;top:91px;height:91px}.phase-3 .road-markings{bottom:69px;height:7px}}
/* High-contrast commissioning road paint, raised above the structural deck */
.phase-3 .road-markings{z-index:30;bottom:70px;height:14px;border-top:2px solid rgba(255,247,211,.92);border-bottom:2px solid rgba(255,247,211,.92);background:repeating-linear-gradient(90deg,transparent 0 18px,#fff5bd 18px 34px,transparent 34px 52px);filter:drop-shadow(0 1px 1px rgba(7,35,39,.75))}.phase-3 .road-markings:before{content:'LANE TEST / OPEN';position:absolute;right:5px;top:-20px;color:#ffedb6;font:7px var(--mono);letter-spacing:.12em;white-space:nowrap}@media(max-width:760px){.phase-3 .road-markings{height:9px;bottom:70px;border-width:1px}.phase-3 .road-markings:before{display:none}}