@import url("fonts.css");
:root{
  --bg:#FFFFFF; --soft:#F4F4F2; --ink:#14181F; --ink2:#4A525E; --mute:#8A919C; --line:#E3E3DF;
  --brand:#123A6B; --brand2:#0C2A50;
  --f:"Manrope","Noto Sans SC","PingFang SC",sans-serif; --fc:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --gut:clamp(20px,5vw,72px); --max:1280px; --read:760px; --ease:cubic-bezier(.22,.61,.24,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
html[data-lang="zh"] body{font-family:var(--fc);font-size:16px;line-height:1.95}
html[data-lang="en"] .zh{display:none!important}
html[data-lang="zh"] .en{display:none!important}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit}
p{margin:0;text-wrap:pretty}
h1,h2,h3{margin:0;font-weight:500;text-wrap:balance}
h1{font-size:clamp(40px,5.4vw,80px);line-height:1.06;letter-spacing:-.03em}
h2{font-size:clamp(30px,3.3vw,48px);line-height:1.15;letter-spacing:-.022em}
h3{font-size:clamp(20px,1.6vw,24px);line-height:1.35;letter-spacing:-.01em}
html[data-lang="zh"] h1{font-size:clamp(34px,4.2vw,60px);line-height:1.3;letter-spacing:.02em}
html[data-lang="zh"] h2{font-size:clamp(26px,2.6vw,38px);line-height:1.45;letter-spacing:.02em}
html[data-lang="zh"] h3{font-size:clamp(18px,1.4vw,21px);line-height:1.6;letter-spacing:.02em}
html[data-lang="zh"] :is(h1,h2,h3){word-break:keep-all;overflow-wrap:anywhere}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
::selection{background:var(--brand);color:#fff}
.wrap{padding-inline:var(--gut)}
.max{max-width:var(--max);margin-inline:auto}
.read{max-width:var(--read);margin-inline:auto}
.lead{font-size:clamp(19px,1.5vw,22px);line-height:1.6;color:var(--ink2)}
html[data-lang="zh"] .lead{font-size:clamp(17px,1.3vw,19px);line-height:2}
.more{display:inline-flex;align-items:center;gap:12px;font-weight:600;font-size:15px;color:var(--brand)}
html[data-lang="zh"] .more{font-weight:500;letter-spacing:.06em}
.more i{display:block;width:28px;height:1px;background:currentColor;position:relative;transition:width .5s var(--ease)}
.more i::after{content:"";position:absolute;right:0;top:-3px;width:7px;height:7px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg)}
a:hover .more i,.more:hover i{width:44px}
.on-dark .more{color:#fff}

/* motion */
.up{opacity:0;transform:translateY(28px);transition:opacity 1.1s var(--ease),transform 1.1s var(--ease)}
.up.in{opacity:1;transform:none}
.up.d1{transition-delay:.12s}.up.d2{transition-delay:.24s}
.wipe{overflow:hidden;clip-path:inset(12% 0 0 0);transition:clip-path 1.4s var(--ease)}
.wipe img{transform:scale(1.15);transition:transform 1.8s var(--ease)}
.wipe.in{clip-path:inset(0 0 0 0)}
.wipe.in img{transform:scale(1)}
@media(prefers-reduced-motion:reduce){.up,.wipe,.wipe img{opacity:1!important;transform:none!important;clip-path:none!important;transition:none!important}*{animation:none!important;scroll-behavior:auto!important}}

/* nav */
.mk{width:28px;height:28px;flex:none}
.nav{position:fixed;inset:0 0 auto;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:24px;height:84px;padding:0 var(--gut);color:#fff;transition:background .45s,color .45s,height .45s,box-shadow .45s,transform .5s var(--ease)}
.nav.solid{background:rgba(255,255,255,.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:var(--ink);height:68px;box-shadow:0 1px 0 var(--line)}
.nav.hide{transform:translateY(-100%)}
.nav .brand{display:flex;align-items:center;gap:12px;font-weight:600;font-size:16px;letter-spacing:-.01em;white-space:nowrap}
html[data-lang="zh"] .nav .brand{font-family:var(--fc);font-weight:500;letter-spacing:.1em}
.nav .menu{list-style:none;display:flex;gap:clamp(18px,2.4vw,40px);margin:0;padding:0;font-size:15px;font-weight:500}
html[data-lang="zh"] .nav .menu{letter-spacing:.08em}
.nav .menu a{position:relative;padding:8px 0;opacity:.9}
.nav .menu a::after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:1px;background:currentColor;transition:right .45s var(--ease)}
.nav .menu a:hover::after,.nav .menu a.on::after{right:0}
.nav .tools{display:flex;gap:6px;align-items:center}
.nav .lang{background:none;border:0;cursor:pointer;font-size:14px;font-weight:500;padding:8px 10px;opacity:.85}
.nav .lang:hover{opacity:1}
.nav .burger{display:none;width:40px;height:40px;border:0;background:none;cursor:pointer;position:relative}
.nav .burger i,.nav .burger i::before{position:absolute;left:10px;right:10px;height:1.5px;background:currentColor;content:"";transition:transform .35s var(--ease)}
.nav .burger i{top:17px}.nav .burger i::before{left:0;right:0;top:6px}
@media(max-width:1000px){
  .nav .menu{position:fixed;inset:0;flex-direction:column;justify-content:center;gap:20px;padding:var(--gut);background:var(--brand2);color:#fff;font-size:26px;opacity:0;pointer-events:none;transition:opacity .4s;z-index:-1}
  .nav.open .menu{opacity:1;pointer-events:auto}.nav.open{color:#fff;background:none;box-shadow:none}
  .nav .burger{display:block}
  .nav.open .burger i{transform:translateY(3px) rotate(45deg)}.nav.open .burger i::before{transform:translateY(-6px) rotate(-90deg)}
}

/* hero slideshow */
.hero{position:relative;height:100vh;height:100svh;min-height:560px;color:#fff;overflow:hidden;background:#0B1424}
.hero .sl{position:absolute;inset:0;opacity:0;transition:opacity 1.8s ease}
.hero .sl.on{opacity:1}
.hero .sl img{width:100%;height:100%;object-fit:cover;transform:scale(1.08)}
.hero .sl.on img{animation:drift 9s linear forwards}
@keyframes drift{from{transform:scale(1.08)}to{transform:scale(1)}}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,14,26,.45) 0%,rgba(8,14,26,0) 28%,rgba(8,14,26,.1) 55%,rgba(8,14,26,.7) 100%);pointer-events:none}
.hero .h{position:absolute;left:0;right:0;bottom:clamp(64px,12vh,128px);z-index:2}
.hero h1 .l{display:block;overflow:hidden}
.hero h1 .l>span{display:block;transform:translateY(110%);transition:transform 1.3s var(--ease)}
.hero h1 .l+.l>span{transition-delay:.14s}
.hero.in h1 .l>span{transform:none}
.hero .sub{margin-top:24px;font-size:clamp(15px,1.15vw,17px);opacity:0;transition:opacity 1.2s .6s}
.hero.in .sub{opacity:.88}
.hero .ctl{position:absolute;left:0;right:0;bottom:32px;z-index:2}
.hero .ctl .max{display:flex;align-items:center;gap:22px;font-size:13px}
.hero .bars{display:flex;gap:8px}
.hero .bars button{width:44px;height:16px;padding:0;border:0;background:none;cursor:pointer;position:relative}
.hero .bars button::before,.hero .bars button::after{content:"";position:absolute;left:0;top:7px;height:2px;width:100%;background:rgba(255,255,255,.32)}
.hero .bars button::after{width:0;background:#fff}
.hero .bars button.on::after{animation:bar 7s linear forwards}
.hero .bars button.done::after{width:100%}
@keyframes bar{to{width:100%}}
.hero .cap{opacity:.8;transition:opacity .6s}
.hero .cap.f{opacity:0}

/* sections */
.s{padding-block:clamp(96px,13vw,180px)}
.s.soft{background:var(--soft)}
.s.tight{padding-block:clamp(72px,9vw,120px)}

/* statement that fills as you read */
.fill{font-size:clamp(28px,3.1vw,46px);line-height:1.32;letter-spacing:-.02em;font-weight:500;max-width:22em}
html[data-lang="zh"] .fill{font-size:clamp(24px,2.5vw,36px);line-height:1.75;letter-spacing:.03em;max-width:26em}
.fill .w{color:#D2D4D8;transition:color .35s}
.fill .w.lit{color:var(--ink)}
.fill+.more{margin-top:48px}

/* expanding panels */
.panels{display:flex;gap:10px;height:clamp(460px,62vh,640px);margin-top:clamp(40px,5vw,64px)}
.panel{position:relative;flex:1 1 0;min-width:0;overflow:hidden;color:#fff;transition:flex 1s var(--ease);cursor:pointer}
.panel img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.6s var(--ease)}
.panel.on img{transform:scale(1.03)}
.panel::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,14,26,0) 35%,rgba(8,14,26,.78) 100%);transition:background .6s}
.panel:not(.on)::after{background:linear-gradient(180deg,rgba(8,14,26,.25) 0%,rgba(8,14,26,.7) 100%)}
.panel .t{position:absolute;left:clamp(20px,2.4vw,36px);right:clamp(20px,2.4vw,36px);bottom:clamp(22px,2.6vw,38px);z-index:1}
.panel .k{font-size:14px;opacity:.8}
html[data-lang="zh"] .panel .k{letter-spacing:.12em}
.panel h3{margin-top:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.panel.on h3{white-space:normal}
.panel .x{display:grid;grid-template-rows:0fr;transition:grid-template-rows .8s var(--ease),opacity .6s;opacity:0}
.panel.on .x{grid-template-rows:1fr;opacity:1;transition-delay:.25s}
.panel .x>div{overflow:hidden}
.panel .x p{margin-top:14px;max-width:34em;font-size:15.5px;line-height:1.75;opacity:.88}
.panel .x .more{margin-top:20px;color:#fff}
@media(max-width:900px){
  .panels{flex-direction:column;height:auto;gap:8px}
  .panel{flex:none;height:120px;transition:height .9s var(--ease)}
  .panel.on{height:440px;flex:none}
}

/* full-bleed parallax band */
.band{position:relative;height:clamp(520px,86vh,860px);overflow:hidden;color:#fff;display:flex;align-items:center}
.band .bg{position:absolute;inset:-12% 0;will-change:transform}
.band .bg img{width:100%;height:100%;object-fit:cover}
.band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,14,26,.72) 0%,rgba(8,14,26,.25) 60%,rgba(8,14,26,.05) 100%)}
.band .max{position:relative;z-index:1;width:100%}
.band h2{max-width:14em}
.band p{margin-top:22px;max-width:30em;opacity:.86}
.band .more{margin-top:36px}

/* text + layered images */
.duo{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(40px,7vw,120px);align-items:center}
.duo .tx p{margin-top:22px;color:var(--ink2)}
.duo .tx .more{margin-top:34px}
.stack{position:relative;aspect-ratio:1/0.82}
.stack .a,.stack .b{position:absolute;overflow:hidden}
.stack .a{left:0;top:0;width:68%;height:78%}
.stack .b{right:0;bottom:0;width:52%;height:58%;box-shadow:0 30px 60px -30px rgba(10,20,40,.35)}
.stack img{width:100%;height:100%;object-fit:cover}
@media(max-width:900px){.duo{grid-template-columns:1fr}.duo.rev .tx{order:0}}

/* two entrances */
.doors{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.door{position:relative;height:clamp(380px,52vh,520px);overflow:hidden;color:#fff;display:flex;align-items:flex-end}
.door img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.6s var(--ease)}
.door:hover img{transform:scale(1.05)}
.door::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,14,26,.05) 30%,rgba(8,14,26,.75) 100%)}
.door .t{position:relative;z-index:1;padding:clamp(24px,3vw,44px)}
.door p{margin-top:10px;opacity:.85;max-width:28em;font-size:15.5px}
.door .more{margin-top:22px;color:#fff}
@media(max-width:800px){.doors{grid-template-columns:1fr}}

/* inner pages */
.banner{position:relative;height:clamp(380px,62vh,600px);overflow:hidden;background:#0B1424;color:#fff}
.banner .bg{position:absolute;inset:-8% 0;will-change:transform}
.banner .bg img{width:100%;height:100%;object-fit:cover}
.banner::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,14,26,.5) 0%,rgba(8,14,26,0) 26%,rgba(8,14,26,.25) 55%,rgba(8,14,26,.78) 100%)}
.banner .h{position:absolute;left:0;right:0;bottom:clamp(36px,6vw,64px);z-index:1}
.banner h1{font-size:clamp(38px,4.6vw,68px)}
html[data-lang="zh"] .banner h1{font-size:clamp(32px,3.6vw,52px)}
.crumb{font-size:13.5px;opacity:.82;margin-bottom:18px}
.crumb a:hover{text-decoration:underline;text-underline-offset:4px}
.crumb span{margin:0 8px;opacity:.6}
.intro{padding-top:clamp(64px,8vw,112px)}
.intro .lead{color:var(--ink);font-size:clamp(21px,1.8vw,27px);line-height:1.55;letter-spacing:-.01em}
html[data-lang="zh"] .intro .lead{font-size:clamp(18px,1.55vw,22px);line-height:2;letter-spacing:.02em}
.art{padding-block:clamp(48px,6vw,80px)}
.art h2{margin-bottom:28px}
.art h3{margin:44px 0 12px}
.art p{color:var(--ink2)}
.art p+p,.art .up+.up>p:first-child{margin-top:1.1em}
.art .wide{margin:clamp(48px,6vw,88px) calc(50% - min(50vw,640px) + 0px);}
.figure{margin-block:clamp(56px,7vw,96px)}
.figure .wipe{aspect-ratio:21/9}
.figure img{width:100%;height:100%;object-fit:cover}
.figure figcaption{margin-top:12px;font-size:13px;color:var(--mute)}
.list{border-top:1px solid var(--line);margin-top:8px}
.list>div{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:28px;padding:22px 0;border-bottom:1px solid var(--line)}
.list b{font-weight:600}
html[data-lang="zh"] .list b{font-weight:500}
.list span{color:var(--ink2)}
@media(max-width:700px){.list>div{grid-template-columns:1fr;gap:4px}}
.region{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:clamp(32px,5vw,80px);align-items:center;padding-block:clamp(40px,5vw,72px)}
.region+.region{border-top:1px solid var(--line)}
.region .wipe{aspect-ratio:4/3}
.region .wipe img{width:100%;height:100%;object-fit:cover}
.region .k{color:var(--mute);font-size:14px}
html[data-lang="zh"] .region .k{letter-spacing:.12em}
.region h2{margin:10px 0 24px}
.region:nth-child(even) .wipe{order:2}
@media(max-width:900px){.region{grid-template-columns:1fr}.region:nth-child(even) .wipe{order:0}}
.nextp{display:block;border-top:1px solid var(--line)}
.nextp .max{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-block:clamp(48px,6vw,80px)}
.nextp small{display:block;color:var(--mute);font-size:14px;margin-bottom:8px}
.nextp h2{transition:color .4s}
.nextp:hover h2{color:var(--brand)}

/* map */
.gwrap{margin-top:clamp(32px,4vw,56px)}
.map{position:relative}
.lmap{aspect-ratio:2000/1033;background:var(--soft)}
.lmap svg{position:absolute;inset:0;width:100%;height:100%;overflow:hidden}
.lmap .grat line{stroke:#E9E9E5;stroke-width:1;vector-effect:non-scaling-stroke}
.lmap .land{fill:#FFFFFF;stroke:#D9D9D3;stroke-width:1;vector-effect:non-scaling-stroke;stroke-linejoin:round}
.lmap .rt{fill:none;stroke:var(--brand);stroke-width:1.2;vector-effect:non-scaling-stroke;stroke-linecap:round;stroke-dasharray:1500;stroke-dashoffset:1500;opacity:.6}
.lmap.in .rt{animation:draw 2.4s cubic-bezier(.4,0,.2,1) forwards}
.lmap.in #r2{animation-delay:.5s}.lmap.in #r3{animation-delay:.9s}
@keyframes draw{to{stroke-dashoffset:0}}
.lmap .mv{fill:var(--brand);opacity:0}
.lmap.in .mv{opacity:.9;transition:opacity .6s 2.6s}
.map .city{position:absolute;transform:translate(-50%,-50%);display:flex;align-items:center;cursor:pointer;background:none;border:0;padding:0;color:var(--ink);opacity:0;transition:opacity .8s}
.lmap.in .city{opacity:1}
.lmap.in .city:nth-of-type(2){transition-delay:.6s}.lmap.in .city:nth-of-type(3){transition-delay:1.1s}.lmap.in .city:nth-of-type(4){transition-delay:1.5s}
.map .city i{width:8px;height:8px;border-radius:50%;background:var(--brand);display:block;position:relative}
.map .city i::after{content:"";position:absolute;inset:-8px;border-radius:50%;border:1px solid var(--brand);opacity:0;animation:ring 3.2s ease-out infinite}
@keyframes ring{0%{transform:scale(.4);opacity:.7}100%{transform:scale(1.8);opacity:0}}
.map .city b{position:absolute;top:50%;transform:translateY(-50%);font-weight:500;font-size:13px;white-space:nowrap}
.map .city.pr b{left:calc(50% + 12px)}
.map .city.up b{top:auto;bottom:calc(50% + 10px);left:50%;transform:translateX(-50%)}
.map .city .pc{display:none}
.map .pop{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:#fff;padding:20px 22px;min-width:240px;max-width:300px;box-shadow:0 30px 60px -30px rgba(10,20,40,.35);opacity:0;pointer-events:none;transition:opacity .35s}
.map .pop.on{opacity:1;pointer-events:auto}
.map .pop .k{font-size:13px;color:var(--mute)}
.map .pop h3{font-size:17px;margin:4px 0 6px}
.map .pop p{font-size:14px;color:var(--ink2);line-height:1.7}
@media(max-width:900px){.gwrap{overflow-x:auto;margin-inline:calc(-1*var(--gut));padding:0 var(--gut)}.lmap{min-width:720px}}

/* forms */
form.f{display:grid;grid-template-columns:1fr 1fr;gap:28px 32px;margin-top:40px}
form.f label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--ink2)}
form.f .full{grid-column:1/-1}
form.f input,form.f select,form.f textarea{font:inherit;font-size:16px;color:var(--ink);background:transparent;border:0;border-bottom:1px solid #C9CBCF;padding:10px 0;border-radius:0;outline:none;transition:border-color .3s;width:100%}
form.f textarea{min-height:110px;resize:vertical}
form.f input:focus,form.f select:focus,form.f textarea:focus{border-color:var(--brand)}
form.f input[type=file]{border-bottom-style:dashed;font-size:14px}
form.f input[type=file]::file-selector-button{font:inherit;font-size:13.5px;border:1px solid #C9CBCF;background:#fff;padding:7px 16px;margin-right:14px;cursor:pointer}
.btn{display:inline-flex;align-items:center;gap:12px;background:var(--brand);color:#fff;border:0;padding:15px 30px;font-size:15px;font-weight:500;cursor:pointer;transition:background .3s}
html[data-lang="zh"] .btn{letter-spacing:.1em}
.btn:hover{background:var(--brand2)}
form.f .foot{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
form.f .foot small{color:var(--mute);font-size:13px;max-width:30em}
form.f .honeypot{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
form.f .data-note{margin:0;color:var(--mute);font-size:13px;line-height:1.7}
form.f .form-error{margin:0;color:#B3261E;font-size:14px}
form.f .form-error[hidden]{display:none}
form.f.submitting button[type=submit]{opacity:.6;cursor:wait}
form.f .submission-id{font-size:13px;overflow-wrap:anywhere}
form.f .ok{display:none}
form.f.sent>*:not(.ok){display:none}
form.f.sent .ok{display:block;grid-column:1/-1}
form.f .ok p{margin-top:8px;color:var(--ink2)}
@media(max-width:700px){form.f{grid-template-columns:1fr}}

/* footer */
footer{background:var(--soft);padding:clamp(64px,8vw,104px) var(--gut) 36px;font-size:14.5px}
footer .top{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:40px}
footer .nm{display:flex;align-items:center;gap:12px;font-weight:600;font-size:16px;color:var(--brand)}
html[data-lang="zh"] footer .nm{font-weight:500;letter-spacing:.1em}
footer .cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
footer h4{margin:0 0 14px;font-size:14.5px;font-weight:600}
html[data-lang="zh"] footer h4{font-weight:500;letter-spacing:.08em}
footer .cols a,footer .cols span{display:block;color:var(--ink2);padding:4px 0}
footer .cols a:hover{color:var(--brand)}
footer .bot{max-width:var(--max);margin:clamp(48px,6vw,80px) auto 0;padding-top:24px;border-top:1px solid #DCDCD7;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--mute);font-size:13px}
footer .bot .t{display:flex;gap:20px}
footer .bot a:hover,footer .bot button:hover{color:var(--ink)}
footer .bot button{background:none;border:0;padding:0;color:inherit;cursor:pointer;font-size:13px}
@media(max-width:800px){footer .top{grid-template-columns:1fr}footer .cols{grid-template-columns:1fr 1fr}}
@media(min-width:901px){
  .panel.on{flex:2.6 1 0}
  .panel:not(.on) h3,.panel:not(.on) .x{display:none}
  .panel:not(.on) .k{writing-mode:vertical-rl;font-size:17px;opacity:1;letter-spacing:.18em;white-space:nowrap}
  html[data-lang="en"] .panel:not(.on) .k{transform:rotate(180deg);letter-spacing:.06em}
  .panel:hover:not(.on) img{transform:scale(1.04)}
}