:root{--navy:#102d35;--deep:#0a2027;--paper:#f2f1eb;--ink:#17272b;--teal:#0b6d6b;--gold:#c8a55c;--line:rgba(23,39,43,.17);--ease:cubic-bezier(.2,.7,.2,1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif}a{color:inherit;text-decoration:none}img{display:block}.skip-link{position:fixed;top:-80px;left:15px;z-index:100;background:#fff;padding:12px}.skip-link:focus{top:15px}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0)}
.about-header{position:fixed;z-index:50;top:0;left:0;right:0;height:76px;padding:0 4.5vw;display:flex;align-items:center;color:#fff;border-bottom:1px solid rgba(255,255,255,.18);transition:.3s}.about-header.is-scrolled{background:rgba(242,241,235,.96);color:var(--ink);border-color:var(--line);backdrop-filter:blur(14px)}.brand{display:flex;align-items:center;gap:17px}.brand img{width:112px;height:40px;object-fit:cover;object-position:left}.brand span{padding-left:17px;border-left:1px solid currentColor;display:flex;flex-direction:column}.brand b{font:400 16px SimSun,serif}.brand small{margin-top:3px;font:7px Arial;letter-spacing:.18em}.about-header nav{margin-left:auto;display:flex;gap:28px}.about-header nav a{font-size:10px}.about-header nav a[aria-current=page]{padding-bottom:5px;border-bottom:1px solid currentColor}.menu-toggle{display:none}
.hero{height:min(850px,100svh);min-height:660px;padding:76px 7vw 6vw;background:var(--navy);color:#fff;display:flex;align-items:center;position:relative;overflow:hidden}.hero-copy{position:relative;z-index:2}.hero-copy>p{font:8px Arial;letter-spacing:.28em;color:#8eb6b5}.hero h1{margin:30px 0 55px;font:400 clamp(75px,11vw,160px)/.9 SimSun,serif}.hero blockquote{margin:0;font:300 clamp(24px,2.7vw,40px)/1.55 SimSun,serif}.year-mark{position:absolute;z-index:2;right:7vw;bottom:8vw;width:240px;padding:24px 0;border-top:1px solid rgba(255,255,255,.3);display:flex;flex-direction:column}.year-mark small{font:7px Arial;letter-spacing:.24em;color:#8eb6b5}.year-mark strong{margin:18px 0 8px;font:400 72px Georgia,serif;color:var(--gold)}.year-mark span{font-size:10px}.hero-lines{position:absolute;right:-7vw;top:8%;width:55vw;height:55vw;border:1px solid rgba(255,255,255,.06);transform:rotate(26deg)}.hero-lines:before,.hero-lines:after{content:"";position:absolute;inset:15%;border:1px solid rgba(255,255,255,.06)}.hero-lines:after{inset:30%}
.section{padding:120px max(6vw,calc((100vw - 1380px)/2))}.index{display:flex;gap:15px;align-items:center}.index span{font:10px Arial;color:var(--teal)}.index small{font:7px Arial;letter-spacing:.22em}.index.light span{color:var(--gold)}.intro{display:grid;grid-template-columns:.35fr 1fr 1fr;gap:6vw}.intro h2,.history h2,.network h2,.mission h2{margin:0;font:400 clamp(43px,4.7vw,70px)/1.3 SimSun,serif}.intro-copy .lead{margin:0;font:400 19px/1.9 SimSun,serif}.intro-copy>p:last-child{margin:30px 0 0;color:#69777a;font-size:13px;line-height:2}
.mission{background:var(--deep);color:#fff}.mission-lead{display:grid;grid-template-columns:.45fr 1.55fr;align-items:start}.mission-grid{margin-top:90px;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(255,255,255,.18)}.mission-grid article{min-height:300px;padding:30px;border-right:1px solid rgba(255,255,255,.18);display:flex;flex-direction:column}.mission-grid article:last-child{border-right:0}.mission-grid span{font-size:10px;color:var(--gold)}.mission-grid h3{margin:auto 0 22px;font:400 24px/1.6 SimSun,serif}.mission-grid p{margin:0;color:#8aa0a4;font-size:11px;line-height:1.9}
.history-head{margin:65px 0 90px;display:grid;grid-template-columns:1fr .65fr;align-items:end}.history-head p{max-width:420px;margin:0;color:#69777a;font-size:12px;line-height:2}.history ol{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.history li{min-height:120px;padding:28px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:.4fr 1fr;align-items:center}.history li>strong{font:400 36px Georgia,serif;color:var(--teal)}.history h3{margin:0 0 10px;font:400 19px SimSun,serif}.history li p{margin:0;color:#748083;font-size:11px}
.network{background:#17414a;color:#fff;display:grid;grid-template-columns:.7fr 1.3fr;gap:7vw}.network-title>p{max-width:380px;color:#93adb0;font-size:12px;line-height:2}.network h2{margin:55px 0 30px}.locations{display:grid;grid-template-columns:1fr 1fr}.locations article{min-height:170px;padding:28px;border-left:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16)}.locations article:nth-last-child(-n+2){border-bottom:0}.locations small{font:7px Arial;letter-spacing:.2em;color:var(--gold)}.locations strong{display:block;margin:42px 0 10px;font:400 21px SimSun,serif}.locations p{margin:0;color:#83a0a4;font-size:10px}
.contact{padding:100px max(6vw,calc((100vw - 1380px)/2));background:var(--teal);color:#fff;display:grid;grid-template-columns:1fr 400px;gap:8vw;align-items:end}.contact>div>span{font:7px Arial;letter-spacing:.25em;color:#9ed0cc}.contact h2{margin:28px 0 0;font:400 clamp(44px,5vw,72px)/1.3 SimSun,serif}.contact>a{min-height:150px;padding:25px;border:1px solid rgba(255,255,255,.45);display:grid;grid-template-columns:1fr auto}.contact>a small,.contact>a span{font-size:9px}.contact>a strong{grid-column:1/3;align-self:center;font:400 29px Arial}.contact>a span{grid-column:2;grid-row:1}footer{min-height:100px;padding:25px 4.5vw;display:flex;align-items:center;gap:45px}footer img{width:110px;height:40px;object-fit:cover;object-position:left}footer p{font-size:9px;color:#788285}footer>small{margin-left:auto;font:8px Arial;color:#788285}.reveal{opacity:0;transform:translateY(18px);transition:opacity .75s var(--ease),transform .75s var(--ease)}.reveal.is-visible{opacity:1;transform:none}
@media(max-width:900px){.about-header{height:70px}.brand span{display:none}.menu-toggle{margin-left:auto;width:44px;height:44px;border:0;background:transparent;color:inherit;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;z-index:3}.menu-toggle i{width:24px;height:1px;background:currentColor}.menu-toggle[aria-expanded=true] i:first-of-type{transform:translateY(4.5px) rotate(45deg)}.menu-toggle[aria-expanded=true] i:last-of-type{transform:translateY(-4.5px) rotate(-45deg)}.about-header nav{position:fixed;inset:0;margin:0;padding:100px 8vw 35px;background:var(--paper);color:var(--ink);flex-direction:column;gap:0;transform:translateY(-102%);opacity:0;visibility:hidden;transition:.35s}.about-header nav.is-open{transform:none;opacity:1;visibility:visible}.about-header nav a{padding:17px 0;border-bottom:1px solid var(--line);font:23px SimSun,serif}.section{padding:85px 7vw}.intro{grid-template-columns:1fr}.mission-lead{grid-template-columns:1fr;gap:55px}.mission-grid{grid-template-columns:1fr}.mission-grid article{min-height:220px;border-right:0;border-bottom:1px solid rgba(255,255,255,.18)}.history-head{grid-template-columns:1fr;gap:35px}.network{grid-template-columns:1fr}.contact{grid-template-columns:1fr}.contact>a{max-width:460px}}
@media(max-width:560px){.hero{min-height:610px}.hero h1{font-size:62px}.year-mark{width:170px;right:7vw}.year-mark strong{font-size:52px}.section{padding:72px 6vw}.intro h2,.history h2,.network h2,.mission h2{font-size:40px}.history li{grid-template-columns:100px 1fr}.history li>strong{font-size:27px}.locations{grid-template-columns:1fr}.locations article{border-left:0}.contact{padding:75px 6vw}.contact h2{font-size:40px}.contact>a{min-height:140px}footer{flex-direction:column;align-items:flex-start;gap:15px}footer>small{margin-left:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}