/* 休斯顿清华校友会 — site styles */
:root{
  --purple:#660874;
  --purple-deep:#2B0A35;
  --purple-soft:#EFE8F3;
  --paper:#F7F5F9;
  --white:#FFFFFF;
  --ink:#241A2B;
  --muted:#6B6072;
  --line:#DDD3E3;
  --jade:#2E6B5E;
  --gold:#D4B36A;
  --serif:"Noto Serif SC","Noto Serif CJK SC","Songti SC","STSong",serif;
  --sans:"Noto Sans SC","Noto Sans CJK SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --wrap:1120px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.75}
img{max-width:100%;display:block}
[hidden]{display:none!important}
a{color:var(--jade);text-underline-offset:3px}
a:hover{color:var(--purple)}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.3;margin:0;color:var(--ink)}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:0;background:var(--white);padding:8px 12px;z-index:99}
.skip:focus{left:8px}

/* header */
.site-head{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.site-head .wrap{display:flex;align-items:center;gap:20px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand img{width:52px;height:52px}
.brand b{display:block;font-family:var(--serif);font-size:20px;line-height:1.2;color:var(--purple)}
.brand small{display:block;font-size:12px;color:var(--muted);line-height:1.3;letter-spacing:.01em}
.nav{margin-left:auto;display:flex;gap:4px}
.nav a{color:var(--ink);text-decoration:none;padding:8px 14px;border-radius:6px;font-size:16px}
.nav a:hover{background:var(--purple-soft);color:var(--purple)}
.nav a[aria-current="page"]{color:var(--purple);font-weight:700;box-shadow:inset 0 -3px 0 var(--purple);border-radius:0}
.lang-switch{flex:none;display:flex;margin-left:6px;border:1px solid var(--line);border-radius:999px;overflow:hidden;font-size:13px;font-weight:700;line-height:1.4}
.lang-switch a{padding:5px 10px;color:var(--purple);text-decoration:none}
.lang-switch a[href]:hover{background:var(--purple-soft)}
.lang-switch a[aria-current]{background:var(--purple);color:#fff;cursor:default}
.zh-sub{color:var(--muted);font-size:.86em;margin-left:2px}
html[lang="en"] .brand b{font-size:17px;max-width:210px;line-height:1.25}
html[lang="en"] .hero h1{letter-spacing:0;font-size:clamp(30px,4.4vw,52px);max-width:22ch;margin:0 auto}
html[lang="en"] .nav a{padding:8px 12px}
html[lang="en"] .foot-brand span{display:block;font-size:14px;color:#D9CCE0}
.nav a{white-space:nowrap}
@media (min-width:1041px) and (max-width:1180px){
  .nav a{padding:8px 9px}
  .site-head .nav a.nav-donate{margin-left:8px;padding-left:13px;padding-right:13px}
  .site-head .wrap{gap:14px}
}
.nav-toggle,.lang-switch a{white-space:nowrap}
.brand{min-width:0}
.brand small{white-space:nowrap}
@media (min-width:1041px) and (max-width:1180px){ html[lang="zh-CN"] .brand small{display:none} }
@media (max-width:600px){
  .site-head .wrap{gap:10px;padding:0 14px}
  .brand{gap:8px}
  .brand img{width:44px;height:44px}
  .brand b{font-size:17px}
  .brand > span{min-width:0}
  .brand small{display:none}
  .lang-switch a{padding:5px 8px}
  .nav-toggle{padding:7px 10px}
  html[lang="en"] .brand b{font-size:14px;max-width:none}
  html[lang="en"] .brand .bl{display:block;white-space:nowrap}
  html[lang="en"] .brand small{display:none}
}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 12px;font:inherit;font-size:15px;color:var(--ink);cursor:pointer}

/* hero (home) */
.hero{background:var(--purple-deep);color:#fff;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:72px 1fr 72px;gap:28px;align-items:stretch;max-width:1240px;margin:0 auto;padding:48px 24px 56px}
.couplet{writing-mode:vertical-rl;text-orientation:upright;font-family:var(--serif);font-size:44px;letter-spacing:.32em;color:var(--gold);display:flex;align-items:center;justify-content:center;border:1px solid rgba(212,179,106,.45);padding:22px 0;margin:0}
.hero-main{text-align:center}
.hero-main .seal{width:120px;height:auto;margin:0 auto 18px}
.hero h1{color:#fff;font-size:clamp(34px,5vw,56px);letter-spacing:.06em}
.hero .en{font-family:var(--serif);font-size:clamp(15px,1.8vw,20px);color:#E6D9EC;margin:6px 0 0;letter-spacing:.04em}
.hero .lede{max-width:34em;margin:18px auto 26px;color:#E9E1EE;font-size:17px}
.hero-photo{margin:0;border:6px solid #fff;box-shadow:0 18px 40px rgba(0,0,0,.35)}
.hero-photo img{width:100%;aspect-ratio:16/7;object-fit:cover;object-position:center 60%}
.hero-photo figcaption{background:#fff;color:var(--muted);font-size:13px;text-align:left;padding:6px 4px 0}
.btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:30px}
.btn{display:inline-block;padding:11px 22px;border-radius:6px;text-decoration:none;font-weight:700;font-size:16px;border:1px solid transparent}
.btn-gold{background:var(--gold);color:var(--purple-deep)}
.btn-gold:hover{background:#E4C783;color:var(--purple-deep)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.btn-purple{background:var(--purple);color:#fff}
.btn-purple:hover{background:#7A1A8A;color:#fff}

/* page title (inner pages) */
.page-title{background:var(--purple-deep);color:#fff;padding:44px 0 40px}
.page-title h1{color:#fff;font-size:clamp(28px,4vw,40px)}
.page-title p{margin:6px 0 0;color:#DCCFE3;font-family:var(--serif)}
.crumb{font-size:14px;margin-bottom:10px}
.crumb a{color:#DCCFE3}

/* sections */
.section{padding:64px 0}
.section.alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.sec-head h2{font-size:30px;color:var(--purple)}
.sec-head .en{font-family:var(--serif);color:var(--muted);font-size:16px}
.sec-head .more{margin-left:auto;font-size:15px}
.measure{max-width:38em}
.two-col{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:start}
.facts{margin:0;padding:0;list-style:none;border-left:3px solid var(--purple)}
.facts li{padding:6px 0 14px 20px}
.facts b{display:block;font-family:var(--serif);font-size:26px;color:var(--purple);line-height:1.3}
.facts span{color:var(--muted);font-size:15px}

/* news list */
.news-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:150px 1fr;gap:28px;padding:26px 0;border-bottom:1px solid var(--line)}
.news-item.has-img{grid-template-columns:150px 1fr 220px}
.news-date{font-family:var(--serif);color:var(--purple);font-size:15px;line-height:1.5}
.news-date b{display:block;font-size:22px}
.tag{display:inline-block;font-family:var(--sans);font-size:12px;padding:1px 8px;border-radius:999px;margin-top:6px;border:1px solid var(--line);color:var(--muted)}
.tag.up{background:var(--purple);color:#fff;border-color:var(--purple)}
.news-item h3{font-size:21px;margin-bottom:6px}
.news-item h3 a{color:var(--ink);text-decoration:none}
.news-item h3 a:hover{color:var(--purple);text-decoration:underline}
.news-item p{color:var(--muted);margin:0 0 6px;font-size:16px}
.news-item .meta{font-size:15px;color:var(--ink);margin:0}
.news-item img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px}

/* photo strip / gallery */
.strip{display:grid;grid-template-columns:2fr 1fr 1fr;grid-template-rows:200px 200px;gap:10px}
.strip a:first-child{grid-row:span 2}
.strip img,.gallery img{width:100%;height:100%;object-fit:cover;border-radius:3px}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));grid-auto-rows:180px;gap:10px}
.gallery a.tall{grid-row:span 2}
.gallery a.wide{grid-column:span 2}
.gallery a,.strip a{display:block;overflow:hidden;background:var(--purple-soft)}
.gallery h2{grid-column:1/-1}
.album{margin-bottom:56px}
.album-head{margin-bottom:18px}
.album-head h2{font-size:26px;color:var(--purple)}
.album-head p{color:var(--muted);margin:4px 0 0}

/* lightbox */
.lb{position:fixed;inset:0;background:rgba(20,6,26,.92);display:none;align-items:center;justify-content:center;z-index:100;padding:48px 64px}
.lb.open{display:flex}
.lb img{max-height:84vh;max-width:100%;object-fit:contain;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.lb figure{margin:0;text-align:center;color:#E9E1EE;font-size:14px}
.lb figcaption{margin-top:10px}
.lb button{position:absolute;background:rgba(255,255,255,.12);color:#fff;border:0;width:48px;height:48px;border-radius:50%;font-size:24px;cursor:pointer;line-height:1}
.lb button:hover{background:rgba(255,255,255,.25)}
.lb .close{top:14px;right:14px}
.lb .prev{left:10px;top:50%;transform:translateY(-50%)}
.lb .next{right:10px;top:50%;transform:translateY(-50%)}

/* join */
.join{display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:center}
.qr{background:#fff;padding:12px;border:1px solid var(--line);width:200px}
.join h2{font-size:28px;color:var(--purple);margin-bottom:10px}

/* people */
.board{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:32px;margin-bottom:40px}
.person img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:4px;margin-bottom:12px}
.person b{display:block;font-family:var(--serif);font-size:22px}
.person span{color:var(--muted);font-size:15px}
.role{color:var(--purple);font-weight:700;font-size:15px}
.past{display:flex;flex-wrap:wrap;gap:12px 36px;list-style:none;margin:0;padding:0}
.past li b{font-family:var(--serif);font-size:20px;display:block}
.past li span{color:var(--muted);font-size:14px}

/* timeline (a real sequence) */
.timeline{list-style:none;margin:0;padding:0;position:relative}
.timeline li{display:grid;grid-template-columns:110px 1fr;gap:24px;padding:0 0 26px;position:relative}
.timeline li::before{content:"";position:absolute;left:125px;top:8px;width:11px;height:11px;border-radius:50%;background:var(--purple)}
.timeline li::after{content:"";position:absolute;left:130px;top:22px;bottom:0;width:1px;background:var(--line)}
.timeline li:last-child::after{display:none}
.timeline time{font-family:var(--serif);font-weight:700;color:var(--purple);font-size:20px;text-align:right;padding-right:22px}
.timeline div{padding-left:28px}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.info dl{margin:0}
.info dt{font-weight:700;color:var(--purple);font-size:15px;margin-top:18px}
.info dt:first-child{margin-top:0}
.info dd{margin:2px 0 0;font-size:17px}
.panel{background:var(--white);border:1px solid var(--line);border-radius:6px;padding:28px}
.panel h2{font-size:24px;color:var(--purple);margin-bottom:14px}
.panel h3{font-size:18px;margin:18px 0 4px}
.form label{display:block;font-weight:700;font-size:15px;margin:14px 0 6px}
.form input,.form textarea{width:100%;font:inherit;font-size:16px;padding:10px 12px;border:1px solid #C9BCD1;border-radius:6px;background:#fff;color:var(--ink)}
.form textarea{min-height:140px;resize:vertical}
.form .note{font-size:14px;color:var(--muted);margin-top:10px}
.form button{margin-top:16px;cursor:pointer;font:inherit;font-weight:700}
.copy-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.copy{font:inherit;font-size:13px;padding:3px 10px;border:1px solid var(--line);background:#fff;border-radius:999px;cursor:pointer;color:var(--muted)}
.copy:hover{border-color:var(--purple);color:var(--purple)}

/* article */
.article{max-width:740px;margin:0 auto;font-size:18px;line-height:1.95}
.article h2{font-size:26px;color:var(--purple);margin:48px 0 16px;letter-spacing:.3em}
.article figure{margin:28px 0}
.article figure.pair{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.article figure img{width:100%;border-radius:3px}
.article figcaption{grid-column:1/-1;font-size:14px;color:var(--muted);margin-top:6px;line-height:1.6}
.poem{font-family:var(--serif);font-size:20px;line-height:2.1;color:var(--purple);text-align:center;margin:8px 0 32px}
.article .quote{border-left:3px solid var(--purple);padding:4px 0 4px 20px;font-family:var(--serif);color:#4A3A52}
.article table{width:100%;border-collapse:collapse;font-size:16px;margin:12px 0 24px}
.article td{padding:8px 4px;border-bottom:1px solid var(--line);vertical-align:top}
.article td:last-child{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.article dl.crew{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;font-size:16px}
.article dl.crew dt{font-weight:700;color:var(--purple)}
.article dl.crew dd{margin:0}
.source{font-size:15px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;margin-top:40px}

/* links */
.link-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.link-list li{display:grid;grid-template-columns:1fr auto;gap:12px;padding:18px 0;border-bottom:1px solid var(--line);align-items:baseline}
.link-list b{font-family:var(--serif);font-size:19px}
.link-list span{display:block;color:var(--muted);font-size:15px}
.sponsors{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.sponsor{display:flex;flex-direction:column;gap:10px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:6px;text-decoration:none;color:var(--ink)}
.sponsor:hover{border-color:var(--purple);color:var(--ink)}
.sponsor .logo{height:70px;display:flex;align-items:center}
.sponsor .logo img{max-height:70px;max-width:180px;object-fit:contain}
.sponsor b{font-size:16px}
.sponsor span{font-size:14px;color:var(--muted)}

/* footer */
.site-foot{background:var(--purple-deep);color:#D9CDE0;padding:52px 0 28px;font-size:15px}
.site-foot a{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;align-items:start}
.foot-brand{display:flex;gap:16px;align-items:center}
.foot-brand img{width:76px}
.foot-brand b{display:block;font-family:var(--serif);font-size:20px;color:#fff}
.site-foot h2{font-family:var(--sans);font-size:15px;color:#fff;margin-bottom:8px}
.site-foot p{margin:0 0 6px}
.foot-thu{width:200px;opacity:.9;margin-top:4px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:36px;padding-top:18px;font-size:13px;color:#B7A8C0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* responsive */
@media (max-width:900px){
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;padding:8px 16px 16px;border-bottom:1px solid var(--line);box-shadow:0 10px 20px rgba(43,10,53,.08)}
  .nav.open{display:flex}
  .nav a{padding:12px 8px;font-size:17px}
  .nav a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--purple);padding-left:14px}
  .site-head .wrap{position:relative}
  .lang-switch{margin-left:auto;order:2}
  .nav-toggle{margin-left:8px;order:3}
  .hero-grid{grid-template-columns:1fr;gap:0;padding:36px 16px 40px}
  .couplet{writing-mode:horizontal-tb;font-size:22px;letter-spacing:.5em;border:0;padding:0;justify-content:center}
  .couplet.right{order:-1;margin-bottom:18px}
  .couplet.left{order:3;margin-top:20px}
  .two-col,.contact-grid,.foot-grid{grid-template-columns:1fr;gap:32px}
  .news-item,.news-item.has-img{grid-template-columns:1fr;gap:10px}
  .news-item img{max-width:420px}
  .strip{grid-template-columns:1fr 1fr;grid-template-rows:220px 140px 140px}
  .strip a:first-child{grid-column:span 2;grid-row:auto}
  .join{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}
  .gallery a.wide{grid-column:span 2}
  .timeline li{grid-template-columns:80px 1fr;gap:12px}
  .timeline time{font-size:17px;padding-right:14px}
  .timeline li::before{left:87px}
  .timeline li::after{left:92px}
  .timeline div{padding-left:18px}
  .lb{padding:56px 8px}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .brand b{font-size:17px}
  .brand small{display:none}
  .brand img{width:44px;height:44px}
  .section{padding:48px 0}
  .sec-head h2{font-size:26px}
  .hero-main .seal{width:96px}
  .hero-photo{border-width:4px}
  .hero-photo img{aspect-ratio:4/3}
  .article{font-size:17px}
  .article figure.pair{grid-template-columns:1fr}
  .gallery{grid-auto-rows:120px}
}
@media (prefers-reduced-motion:no-preference){
  .hero-main,.couplet{animation:rise .8s ease-out both}
  .couplet{animation-delay:.25s}
  @keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
}
@media (max-width:520px){.board{grid-template-columns:1fr 1fr;gap:18px}.person b{font-size:19px}}
.sponsor .logo.text{font-family:var(--serif);font-size:22px;color:var(--purple);font-weight:700}

/* year group photos */
.sec-sub{display:flex;align-items:baseline;gap:16px;margin:40px 0 14px}
.sec-sub h3{font-size:20px;color:var(--purple)}
.sec-sub a{font-size:15px}
.years-row{list-style:none;margin:0;padding:0 0 10px;display:grid;grid-auto-flow:column;grid-auto-columns:minmax(180px,1fr);gap:12px;overflow-x:auto;scroll-snap-type:x mandatory}
.years-row li{scroll-snap-align:start}
.years-row img{width:100%;aspect-ratio:10/3;object-fit:cover;border-radius:3px}
.years-row .yr{display:block;font-family:var(--serif);font-weight:700;color:var(--purple);font-size:18px;margin-top:6px}
.years-list{list-style:none;margin:0;padding:0;display:grid;gap:28px}
.years-list li{display:grid;grid-template-columns:96px 1fr;gap:20px;align-items:start}
.years-list .yr{order:-1;font-family:var(--serif);font-weight:700;color:var(--purple);font-size:28px;line-height:1;border-top:3px solid var(--purple);padding-top:10px}
.years-list img{width:100%;border-radius:3px}
@media (max-width:600px){.years-list li{grid-template-columns:1fr;gap:8px}.years-list .yr{font-size:22px;border-top:0;padding-top:0}.years-row{grid-auto-columns:82%}}
.site-foot .views b{color:#fff;font-variant-numeric:tabular-nums;margin-left:4px}

/* news by year */
.year-jump{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.year-jump a{padding:4px 12px;border:1px solid var(--line);border-radius:999px;background:var(--white);color:var(--ink);text-decoration:none;font-size:15px;font-variant-numeric:tabular-nums}
.year-jump a:hover{border-color:var(--purple);color:var(--purple)}
.news-year{margin-bottom:36px;scroll-margin-top:96px}
.news-year > h2{font-size:28px;color:var(--purple);margin-bottom:8px}

/* history */
.history-poem{align-self:center;margin:0}
.table-wrap{overflow-x:auto}
.pres-table{width:100%;border-collapse:collapse;background:var(--white);font-size:16px}
.pres-table th{text-align:left;font-weight:700;color:var(--muted);font-size:14px;padding:10px 14px;border-bottom:2px solid var(--purple)}
.pres-table td{padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.pres-table td:first-child{font-variant-numeric:tabular-nums;white-space:nowrap;color:var(--muted)}
.pres-table td:nth-child(2){font-family:var(--serif);font-weight:700;font-size:18px;white-space:nowrap}
.pres-table tr.now td{background:var(--purple-soft)}
.pres-table .tag{vertical-align:middle;margin:0 0 0 6px;font-family:var(--sans);font-weight:400}
.note{color:var(--muted);font-size:15px;margin-top:14px}
.person .ph{width:100%;aspect-ratio:1;border-radius:4px;margin-bottom:12px;background:var(--purple-soft);color:var(--purple);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:72px}
.art-meta{color:var(--muted);font-size:15px}
.article ul{padding-left:1.4em}
.article li{margin-bottom:4px}
@media (max-width:520px){.pres-table td,.pres-table th{padding:8px 8px}.pres-table td:nth-child(2){white-space:normal}}
.news-year .nd-y{display:none}

/* in-page section bar (about / contact) */
.page-nav{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:76px;z-index:15}
.page-nav .wrap{display:flex;gap:6px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none}
.page-nav .wrap::-webkit-scrollbar{display:none}
.page-nav a{flex:none;padding:6px 14px;border-radius:999px;color:var(--ink);text-decoration:none;font-size:15px;border:1px solid var(--line)}
.page-nav a:hover{border-color:var(--purple);color:var(--purple)}
.anchor{scroll-margin-top:140px}
.intro-side{display:flex;flex-direction:column;align-items:center;gap:20px}
.intro-side img{max-width:300px;width:100%}
.intro-side .poem{margin:0}
.link-list li > a{word-break:break-all}


/* donate button in the main menu */
.nav a.nav-donate{background:var(--gold);color:var(--purple-deep);border-radius:999px;margin-left:12px;padding-left:18px;padding-right:18px;font-weight:700;box-shadow:none}
.nav a.nav-donate small{font-size:.8em;font-weight:600;margin-left:2px;letter-spacing:.02em}
.nav a.nav-donate:hover,.nav a.nav-donate[aria-current="page"]{background:#E3C788;color:var(--purple-deep);box-shadow:none}
.join-donate{margin:18px 0 0;color:var(--muted);font-size:16px}
@media (max-width:900px){
  .nav a.nav-donate{margin:10px 0 0;text-align:center;padding:12px 8px;border-radius:999px;box-shadow:none}
}

/* friend links with logos */
.friends{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px}
.friend{display:flex;gap:16px;align-items:center;padding:16px 18px;background:var(--white);border:1px solid var(--line);border-radius:6px;text-decoration:none;color:var(--ink)}
.friend:hover{border-color:var(--purple);color:var(--ink)}
.friend .flogo{flex:none;width:72px;height:72px;display:flex;align-items:center;justify-content:center}
.friend .flogo img{max-width:72px;max-height:72px;object-fit:contain}
.friend .mark{width:64px;height:64px;border-radius:50%;background:var(--purple-soft);color:var(--purple);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:700;font-size:18px}
.friend b{display:block;font-family:var(--serif);font-size:18px;line-height:1.4}
.friend span{display:block;color:var(--muted);font-size:14px;line-height:1.5}
.friend small{display:block;color:var(--jade);font-size:13px;margin-top:2px;word-break:break-all}

/* footer with sitemap */
.foot-top{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.15)}
.foot-contact{text-align:right}
.foot-contact p{margin:0 0 4px}
.sitemap{display:grid;grid-template-columns:repeat(5,1fr) 1.2fr;gap:24px;padding-top:28px}
.sitemap h2{font-family:var(--sans);font-size:15px;margin:0 0 8px}
.sitemap h2 a{color:#fff;text-decoration:none}
.sitemap h2 a:hover{text-decoration:underline}
.sitemap ul{list-style:none;margin:0 0 18px;padding:0}
.sitemap li{margin:0 0 6px}
.sitemap li a{color:#D9CDE0;text-decoration:none;font-size:14px}
.sitemap li a:hover{color:#fff;text-decoration:underline}
@media (max-width:900px){
  .sitemap{grid-template-columns:repeat(2,1fr);gap:8px 24px}
  .foot-thu-col{grid-column:1/-1}
  .foot-contact{text-align:left}
  .friends{grid-template-columns:1fr}
}

/* donation band on the home page */
.donate-band{background:var(--purple-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.donate-band-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center}
.donate-band h2{font-size:30px;color:var(--purple);margin-bottom:12px}
.donate-band p{max-width:36em}
.tax-line{color:var(--ink);font-weight:700}
.donate-box{background:var(--white);border:2px solid var(--purple);border-radius:8px;padding:22px 24px;display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.donate-box .lbl{font-size:14px;color:var(--muted)}
.donate-box .copy-row b{font-size:20px}
.donate-box p{margin:0}
.donate-box .memo{color:var(--purple);font-size:15px}
.donate-box .sub-link{font-size:15px}
.donate-box.big{align-self:start}
.check-panel{margin-top:28px;max-width:640px}
.check-panel h3{margin:0 0 6px;font-size:18px}
.muted-line{color:var(--muted);font-size:15px}

/* online forms */
.form-layout{grid-template-columns:1.6fr 1fr;align-items:start}
.form-layout .panel h2{font-size:24px;color:var(--purple);margin-bottom:4px}
.grid-fields{display:grid;grid-template-columns:1fr 1fr;gap:4px 20px;margin-top:12px}
.fld{display:flex;flex-direction:column}
.fld.wide{grid-column:1/-1}
.fld label{font-weight:700;font-size:15px;margin:12px 0 6px}
.fld input,.fld select,.fld textarea{width:100%;font:inherit;font-size:16px;padding:10px 12px;border:1px solid #C9BCD1;border-radius:6px;background:#fff;color:var(--ink)}
.fld textarea{min-height:96px;resize:vertical}
.fld [aria-invalid="true"]{border-color:#A3123A;box-shadow:0 0 0 2px rgba(163,18,58,.15)}
.fld .hint{color:var(--muted);font-size:13px;margin-top:4px}
.req{color:#A3123A;margin-left:3px}
.opt{color:var(--muted);font-weight:400;font-size:13px;margin-left:6px}
.consent{display:flex;gap:10px;align-items:flex-start;margin:18px 0 0;font-size:15px}
.consent input{margin-top:5px;width:18px;height:18px;flex:none}
.form-msg{color:#A3123A;font-size:15px;margin:12px 0 0;min-height:0}
.form-msg:empty{display:none}
.reg-form button{margin-top:16px;cursor:pointer;font:inherit;font-weight:700;min-width:160px}
.reg-form button:disabled{opacity:.6;cursor:wait}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-done{background:var(--white);border:2px solid var(--purple);border-radius:8px;padding:24px 26px}
.form-done h2{color:var(--purple);font-size:24px;margin-bottom:8px}
.side-notes h3{font-size:18px;color:var(--purple);margin:0 0 8px}
.side-notes h3:not(:first-child){margin-top:24px}
.steps{margin:0;padding-left:1.3em}
.steps li{margin-bottom:6px}
@media (max-width:900px){
  .donate-band-grid,.form-layout{grid-template-columns:1fr;gap:28px}
  .grid-fields{grid-template-columns:1fr}
}

/* identity verification block in the join form */
.verify-box{grid-column:1/-1;margin-top:18px;padding:16px 18px;border:1px solid var(--line);border-left:4px solid var(--purple);border-radius:6px;background:var(--paper)}
.verify-box h3{font-size:17px;color:var(--purple);margin:0 0 4px}
.verify-box .muted-line{margin:0}
.verify-box .grid-fields{margin-top:4px}
.radios{border:0;padding:0;margin:8px 0 0}
.radios legend{font-weight:700;font-size:15px;margin:4px 0 6px;padding:0}
.radio{display:flex;align-items:center;gap:8px;padding:8px 10px;margin:4px 0;border:1px solid var(--line);border-radius:6px;background:#fff;cursor:pointer;font-size:16px}
.radio:has(input:checked){border-color:var(--purple);background:var(--purple-soft)}
.radio input{width:18px;height:18px;margin:0}
.fld input[type=file]{padding:8px;background:#fff}
.shot-preview{max-width:220px;max-height:300px;margin-top:10px;border:1px solid var(--line);border-radius:4px}
.fld[hidden]{display:none}

/* English brand on narrow phones */
.brand .bs{display:none}
@media (max-width:400px){
  .brand img{width:38px;height:38px}
  .brand b{font-size:16px}
  html[lang="en"] .brand b{font-size:12.5px}
  .site-head .wrap{gap:8px;padding:0 12px}
}
@media (max-width:340px){
  html[lang="en"] .brand .bl{display:none}
  html[lang="en"] .brand .bs{display:block;font-size:20px}
}

/* join link in the footer */
.foot-join{display:inline-block;margin-top:10px;padding:7px 18px;border:1px solid rgba(255,255,255,.55);border-radius:999px;color:#fff!important;font-weight:700;text-decoration:none}
.foot-join:hover{background:rgba(255,255,255,.12)}

/* the menu has 7 items: collapse it to the 菜单 button below 1040px */
@media (max-width:1040px){
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;padding:8px 16px 16px;border-bottom:1px solid var(--line);box-shadow:0 10px 20px rgba(43,10,53,.08)}
  .nav.open{display:flex}
  .nav a{padding:12px 8px;font-size:17px}
  .nav a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--purple);padding-left:14px}
  .site-head .wrap{position:relative}
  .lang-switch{margin-left:auto;order:2}
  .nav-toggle{margin-left:8px;order:3}
  .site-head .nav a.nav-donate{margin:10px 0 0;text-align:center;padding:12px 8px;border-radius:999px;box-shadow:none}
}