@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Playfair+Display:ital,wght@0,500;1,500&display=swap');
:root{--green:#08442e;--ink:#213a2d;--muted:#657267;--line:#dce5db;--pale:#f2f5ef}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#fff;font:16px/1.7 'DM Sans','PingFang SC','Microsoft YaHei',sans-serif}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid #91b751;outline-offset:5px}.skip{position:fixed;top:-80px;left:16px;background:white;padding:10px;z-index:10}.skip:focus{top:10px}header{height:124px;max-width:1600px;margin:auto;padding:10px 5%;display:flex;align-items:center;gap:40px}.brand{flex-shrink:0;line-height:0}.brand img{width:98px;height:98px;object-fit:contain;display:block}nav{display:flex;align-items:center;justify-content:center;gap:38px;margin:auto}nav a{font-size:14px;padding:10px 0;white-space:nowrap;border-bottom:2px solid transparent}nav a[aria-current]{border-color:var(--green);color:var(--green);font-weight:600}.languages{display:flex;gap:12px;font-size:14px}.languages a{padding:5px 0;color:var(--muted)}.languages a[aria-current]{color:var(--green);font-weight:700;border-bottom:2px solid var(--green)}.page{max-width:1600px;margin:auto;display:grid;grid-template-columns:1fr 1fr;min-height:520px;height:calc(100svh - 176px);padding:0 5%;gap:6%}.copy{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:20px 0}.eyebrow{font-size:12px;letter-spacing:.13em;font-weight:600;margin:0 0 24px}:is(h1,h2){font:500 clamp(38px,4.1vw,68px)/1.16 'Playfair Display',Georgia,serif;letter-spacing:-.035em;margin:0 0 26px}:is(h1,h2) em{color:#658447;font-weight:500}.description{max-width:450px;color:var(--muted);margin:0 0 28px;font-size:16px;line-height:1.85}.button{display:inline-flex;align-items:center;gap:24px;background:var(--green);color:#fff;padding:15px 22px;line-height:1.5;font-size:14px;max-width:100%}.button:hover{background:#216044}.button span{font-size:23px;flex-shrink:0}.visual{position:relative;min-height:0;overflow:hidden;background:var(--pale)}.visual>img{width:100%;height:100%;object-fit:cover;display:block}.image-caption{position:absolute;bottom:0;left:0;right:0;padding:50px 26px 22px;display:flex;justify-content:space-between;font-size:12px;letter-spacing:.12em;color:white;background:linear-gradient(transparent,#001c18a6)}.qr-visual{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;background:var(--pale)}.qr-visual>img{width:min(80%,340px);height:auto;aspect-ratio:1;object-fit:contain;background:white;flex-shrink:0}.qr-label{font-size:20px;font-weight:600;margin:22px 0 3px}.qr-hint{font-size:14px;color:var(--muted);margin:0}.scan-note{max-width:420px;font-size:14px;color:var(--muted);padding-top:18px;border-top:1px solid var(--line);margin:0}footer{height:52px;padding:0 5%;max-width:1600px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:12px;color:var(--muted)}.page-links{display:flex;align-items:center;gap:22px}.page-links a{font-size:14px;color:var(--green)}:lang(zh-CN) :is(h1,h2){font-family:'Songti SC','Noto Serif CJK SC','SimSun',serif;letter-spacing:.01em;line-height:1.35}:lang(zh-CN) :is(h1,h2) em{font-style:normal}.page-goals :is(h1,h2){font-size:clamp(34px,3.5vw,56px)}
@media(max-width:1000px){header{gap:24px}nav{gap:22px}.page{gap:4%}:is(h1,h2){font-size:42px}.page-goals :is(h1,h2){font-size:36px}}
@media(max-width:760px){header{height:136px;display:grid;grid-template-columns:1fr auto;grid-template-rows:74px 42px;gap:0;padding:8px 5% 12px}.brand img{width:70px;height:70px}.languages{grid-column:2;grid-row:1}nav{grid-column:1/-1;grid-row:2;justify-content:space-between;width:100%;gap:10px}nav a{font-size:14px;padding:6px 0}.page{height:calc(100svh - 180px);min-height:560px;display:flex;flex-direction:column;gap:18px;padding:0 5%}.copy{padding:16px 0 0;flex-shrink:0}.eyebrow{margin-bottom:12px;font-size:12px}:is(h1,h2){font-size:36px;line-height:1.16;margin-bottom:14px}:is(h1,h2) br{display:none}:lang(zh-CN) :is(h1,h2){font-size:36px;line-height:1.3}:lang(zh-CN) :is(h1,h2) br{display:block}.description{margin-bottom:18px;font-size:16px;line-height:1.7;max-width:none}.button{padding:11px 16px;gap:20px;font-size:14px}.visual{flex:1;min-height:220px}.image-caption{padding:35px 18px 14px;font-size:12px}.page-goals :is(h1,h2),:lang(zh-CN) .page-goals :is(h1,h2){font-size:31px}.page-mini-program .copy{padding-top:8px}.page-mini-program .description{margin-bottom:10px}.page-mini-program :is(h1,h2){font-size:34px}.scan-note{font-size:14px;padding-top:10px}.qr-visual{padding:16px;min-height:310px}.qr-visual>img{width:auto;height:min(28svh,240px);max-width:100%}.qr-label{font-size:16px;margin-top:10px}.qr-hint{font-size:14px}footer{height:44px;padding:0 5%}footer>span{font-size:10px}.page-links{gap:14px}}
@media(max-width:380px){nav{gap:6px}nav a{font-size:12px}.page{min-height:575px}:is(h1,h2),:lang(zh-CN) :is(h1,h2){font-size:32px}.page-goals :is(h1,h2),:lang(zh-CN) .page-goals :is(h1,h2){font-size:28px}footer>span{max-width:120px;font-size:10px}}
@media(max-height:740px) and (min-width:761px){header{height:104px}.brand img{width:80px;height:80px}.page{height:calc(100svh - 156px);min-height:430px}:is(h1,h2){font-size:44px}.qr-visual>img{width:min(70%,280px)}}
.page-index .visual>img{object-position:50% 72%}.page-philosophy .visual:before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle,#a7fff5c0 2px,transparent 3px);background-size:64px 64px;opacity:.42;animation:stream 14s linear infinite;pointer-events:none}.page-philosophy .visual:after{content:'';position:absolute;width:28px;height:28px;border:1px solid #9cfff1;left:25%;top:32%;box-shadow:90px 75px 0 -4px #73dcc966,-45px 180px 0 4px #73dcc955,130px 240px 0 -8px #adfff5;animation:float 7s ease-in-out infinite alternate;pointer-events:none}@keyframes stream{to{background-position:128px -128px}}@keyframes float{to{transform:translate(12px,-25px)}}@media(prefers-reduced-motion:reduce){.page-philosophy .visual:before,.page-philosophy .visual:after{animation:none}}

/* Native document scrolling: wheel, touch, keyboard and anchor links. */
:root{--header-height:124px}html{scroll-behavior:smooth;scroll-padding-top:var(--header-height)}header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid #eef1eb;max-width:none}.panel{scroll-margin-top:0;min-height:calc(100svh - var(--header-height));border-bottom:1px solid var(--line)}.panel .page{height:auto;min-height:max(520px,calc(100svh - var(--header-height) - 52px))}.panel .visual:not(.qr-visual)>img{position:absolute;inset:0}.panel .qr-visual>img{position:static}nav a[aria-current="location"]{border-color:var(--green);font-weight:600}.panel .copy{min-width:0}.panel footer{height:52px}
@media(max-width:760px){:root{--header-height:136px}.panel .page{height:auto;min-height:calc(100svh - var(--header-height) - 44px);padding-top:0;padding-bottom:0;gap:18px}.panel .visual{flex:1 0 auto;min-height:clamp(240px,42svh,440px)}.panel .qr-visual{min-height:330px}.panel footer{height:44px}.panel .copy{padding-top:20px}.panel .visual:not(.qr-visual)>img{object-position:center 72%}}
@media(max-height:740px) and (min-width:761px){:root{--header-height:104px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Browser-native full-section sliding for wheel, trackpad and touch. */
html{scroll-behavior:smooth;scroll-snap-type:y mandatory}
.panel{scroll-snap-align:start;scroll-snap-stop:always;border-bottom:0;box-shadow:inset 0 -1px var(--line)}
@media(max-width:760px){.panel .visual:not(.qr-visual){min-height:clamp(220px,36svh,380px)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto;scroll-snap-type:y proximity}}


/* The entire header belongs to the opening screen and scrolls away with it. */
html{scroll-padding-top:0}
#platform>header{position:static;top:auto;z-index:auto}
.panel{min-height:100svh}
.panel .page{min-height:max(520px,calc(100svh - 52px))}
#platform .page{min-height:max(520px,calc(100svh - var(--header-height) - 52px))}
@media(max-width:760px){.panel .page{min-height:calc(100svh - 44px)}#platform .page{min-height:calc(100svh - var(--header-height) - 44px)}}

.panel .page-index .visual>img{object-position:50% 35%}.panel .page-goals .visual>img{object-position:50% 28%}
/* Information-flow diagram: paired signals converge at right-angle junctions. */
.page-philosophy .visual{background:radial-gradient(ellipse at 45% 50%,#104c44,#061e24 80%)}
.page-philosophy .visual:before,.page-philosophy .visual:after{display:none}
.information-flow{position:absolute;inset:0;width:100%;height:100%}
.flow-route{fill:none;stroke:#468e85;stroke-width:1;opacity:.5}
.flow-junction{fill:#83c8b8;opacity:.45}
.flow-dot{fill:#b9ffdc;filter:drop-shadow(0 0 4px #78ffcf)}
.arrival-glow{fill:#e0ffcc;filter:drop-shadow(0 0 10px #afffda)}
html.is-navigating{scroll-snap-type:none!important;scroll-behavior:auto!important}
@media(prefers-reduced-motion:reduce){.flow-dot,.arrival-glow{display:none}}
/* Perspective information ecosystem. */
.information-universe{position:absolute;inset:0;width:100%;height:100%;display:block}
.network-key{position:absolute;top:24px;left:24px;right:24px;display:flex;gap:20px;flex-wrap:wrap;color:#c6ded8;font-size:12px;letter-spacing:.05em;pointer-events:none}
.network-key span{display:flex;align-items:center;gap:8px}.network-key span:before{content:'';width:5px;height:5px;border-radius:50%;background:#8bffd6;box-shadow:0 0 10px #8bffd6}.network-key .people-key:before{background:#ffd387;box-shadow:0 0 10px #ffd387}
@media(max-width:760px){.network-key{top:18px;left:18px;right:18px;gap:16px}}

/* Keep the scannable code intact inside a rounded, downloadable image card. */
.qr-download{display:block;width:min(80%,340px);padding:12px;border-radius:24px;background:white;line-height:0;box-shadow:0 8px 26px #0b432c0d;cursor:pointer;flex-shrink:0;transition:box-shadow .2s,transform .2s}
.qr-download img{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:contain;border-radius:12px}
.qr-download:hover{transform:translateY(-2px);box-shadow:0 12px 30px #0b432c20}.qr-download:focus-visible{outline:3px solid #658447;outline-offset:6px}
@media(max-width:760px){.qr-download{width:min(80%,28svh,240px);padding:10px;border-radius:20px}.qr-download img{border-radius:10px}}
@media(prefers-reduced-motion:reduce){.qr-download{transition:none}.qr-download:hover{transform:none}}

/* Keep headline emphasis upright on mobile Chrome and all other browsers. */
h1,h2,h1 em,h2 em{font-style:normal!important;font-synthesis:none}
h1 em,h2 em{font-family:inherit}