/* ============ PENNIS UNIVERSITY — Global Stylesheet ============ */
:root{
  --navy:#0d2247; --navy-2:#143a6e; --navy-3:#1b4a8a;
  --gold:#c9a227; --gold-light:#e8c96a; --gold-dark:#9a7a1c;
  --crimson:#9e1b32; --ink:#1c2430; --gray:#5a6472; --gray-light:#8b95a3;
  --bg:#ffffff; --bg-soft:#f4f6fa; --line:#e3e8ef;
  --serif:Georgia,'Times New Roman',Songti SC,SimSun,serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'PingFang SC','Microsoft YaHei',sans-serif;
  --shadow:0 6px 24px rgba(13,34,71,.10);
  --shadow-lg:0 14px 44px rgba(13,34,71,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);line-height:1.65;background:var(--bg);font-size:16px}
img{max-width:100%;display:block}
a{color:var(--navy-3);text-decoration:none}
a:hover{color:var(--crimson)}
.container{max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- Language switch ---------- */
.lang-en .zh,.lang-zh .en{display:none!important}

/* ---------- Top utility bar ---------- */
.topbar{background:var(--navy);color:#d9e2f0;font-size:13.5px;padding:7px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.topbar a{color:var(--gold-light)}
.topbar a:hover{color:#fff}
.topbar .marquee{flex:1;min-width:240px;overflow:hidden;white-space:nowrap}
.topbar .marquee span{display:inline-block;padding-left:100%;animation:ticker 26s linear infinite}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-100%)}}

/* ---------- Header / nav ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;box-shadow:0 2px 10px rgba(13,34,71,.05)}
.header-inner{display:flex;align-items:center;gap:22px;padding:12px 0}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{height:58px;width:auto}
.brand .b-name{font-family:var(--serif);font-weight:700;color:var(--navy);line-height:1.15}
.brand .b-name .en{font-size:21px;letter-spacing:.4px}
.brand .b-name .zh{font-size:13px;color:var(--gray);font-weight:400;letter-spacing:2px}
.main-nav{flex:1;display:flex;justify-content:flex-end;align-items:center;gap:4px;flex-wrap:wrap}
.main-nav a.nav-link{padding:9px 13px;font-size:15px;font-weight:500;color:var(--ink);border-radius:6px;transition:.15s}
.main-nav a.nav-link:hover{background:var(--bg-soft);color:var(--crimson)}
.main-nav a.nav-link.active{color:var(--crimson);border-bottom:3px solid var(--crimson);padding-bottom:6px}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;margin-left:10px;flex-shrink:0}
.lang-switch button{border:none;background:#fff;padding:6px 14px;font-size:13px;cursor:pointer;color:var(--gray)}
.lang-switch button.on{background:var(--navy);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-size:18px;cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;overflow:hidden}
.hero img.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,34,71,.55) 0%,rgba(13,34,71,.72) 55%,rgba(13,34,71,.88) 100%)}
.hero .hero-content{position:relative;z-index:2;max-width:860px;padding:80px 24px}
.hero h1{font-family:var(--serif);font-size:clamp(38px,6vw,64px);letter-spacing:1.5px;text-shadow:0 2px 18px rgba(0,0,0,.4)}
.hero .hero-motto{font-size:17px;letter-spacing:4px;color:var(--gold-light);margin-top:10px;text-transform:uppercase}
.hero .hero-sub{font-size:clamp(15px,2vw,19px);margin-top:18px;opacity:.95;max-width:640px;margin-left:auto;margin-right:auto}
.hero .cta-row{display:flex;gap:14px;justify-content:center;margin-top:32px;flex-wrap:wrap}

/* ---------- Buttons ---------- */
.btn{display:inline-block;padding:13px 28px;border-radius:6px;font-weight:600;font-size:15px;transition:.18s;cursor:pointer;border:2px solid transparent}
.btn-gold{background:var(--gold);color:#fff;border-color:var(--gold)}
.btn-gold:hover{background:var(--gold-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.75)}
.btn-outline:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn-ghost:hover{background:var(--navy);color:#fff}

/* ---------- Section scaffolding ---------- */
.section{padding:72px 0}
.section.alt{background:var(--bg-soft)}
.section.dark{background:var(--navy);color:#e8edf6}
.sec-head{text-align:center;max-width:760px;margin:0 auto 48px}
.sec-kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--crimson);margin-bottom:10px}
.sec-head h2{font-family:var(--serif);font-size:clamp(28px,3.4vw,40px);color:var(--navy);line-height:1.2}
.sec-head p{margin-top:14px;color:var(--gray);font-size:16.5px}
.section.dark .sec-head h2{color:#fff}
.section.dark .sec-head p{color:#b9c6da}
.sec-title-line{width:64px;height:3px;background:var(--gold);margin:16px auto 0;border-radius:2px}

/* ---------- Cards & grids ---------- */
.grid{display:grid;gap:26px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 2px 8px rgba(13,34,71,.05);transition:.2s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card img{height:190px;width:100%;object-fit:cover}
.card-body{padding:22px;flex:1;display:flex;flex-direction:column;gap:10px}
.card-body h3{font-family:var(--serif);font-size:19px;color:var(--navy)}
.card-body p{color:var(--gray);font-size:14.5px;flex:1}
.card-body .tag{font-size:12px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--crimson)}
.card-link{font-weight:600;font-size:14px;color:var(--navy-3)}

/* ---------- Stats band ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:2px;background:var(--line)}
.stat{background:var(--navy);color:#fff;text-align:center;padding:34px 16px}
.stat .num{font-family:var(--serif);font-size:clamp(30px,3.6vw,44px);color:var(--gold-light);font-weight:700}
.stat .lbl{font-size:13.5px;letter-spacing:1.6px;text-transform:uppercase;margin-top:6px;color:#c6d2e6}

/* ---------- Feature split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split img{border-radius:12px;box-shadow:var(--shadow-lg);width:100%;height:420px;object-fit:cover}
.split h2{font-family:var(--serif);font-size:clamp(26px,3vw,36px);color:var(--navy);margin:10px 0 16px}
.split p{color:var(--gray);margin-bottom:14px}
.check-list{list-style:none;margin-top:8px}
.check-list li{padding:7px 0 7px 32px;position:relative;color:var(--ink);font-size:15.5px}
.check-list li::before{content:"✓";position:absolute;left:4px;color:var(--gold-dark);font-weight:800}

/* ---------- Table ---------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px}
table{width:100%;border-collapse:collapse;font-size:15px;background:#fff}
th{background:var(--navy);color:#fff;text-align:left;padding:13px 16px;font-size:13.5px;letter-spacing:.8px;text-transform:uppercase}
td{padding:12px 16px;border-top:1px solid var(--line)}
tr:nth-child(even) td{background:var(--bg-soft)}

/* ---------- Timeline ---------- */
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:3px;background:var(--gold);border-radius:2px}
.tl-item{position:relative;padding:0 0 34px 22px}
.tl-item::before{content:"";position:absolute;left:-30px;top:6px;width:15px;height:15px;border-radius:50%;background:#fff;border:4px solid var(--gold)}
.tl-item h4{font-family:var(--serif);color:var(--navy);font-size:18px}
.tl-item .tl-date{font-size:13px;font-weight:700;color:var(--crimson);letter-spacing:1px;text-transform:uppercase}
.tl-item p{color:var(--gray);margin-top:6px;font-size:15px}

/* ---------- People ---------- */
.person{text-align:center}
.person .avatar{width:150px;height:150px;border-radius:50%;margin:0 auto 16px;background:var(--navy);color:var(--gold-light);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:52px;font-weight:700;box-shadow:var(--shadow);border:4px solid var(--gold)}
.person h4{font-family:var(--serif);font-size:18px;color:var(--navy)}
.person .role{font-size:13px;color:var(--crimson);font-weight:600;margin-top:3px}

/* ---------- News ---------- */
.news-card{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.news-card:last-child{border-bottom:none}
.news-card .n-date{flex-shrink:0;width:74px;text-align:center;background:var(--navy);color:#fff;border-radius:10px;padding:10px 6px;height:fit-content}
.news-card .n-date b{display:block;font-size:21px;font-family:var(--serif);color:var(--gold-light)}
.news-card .n-date span{font-size:11px;letter-spacing:1px;text-transform:uppercase}
.news-card h3{font-family:var(--serif);font-size:18px;color:var(--navy);margin-bottom:6px}
.news-card p{color:var(--gray);font-size:14.5px}
.news-tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:1px;background:var(--bg-soft);border:1px solid var(--line);border-radius:99px;padding:3px 10px;color:var(--gray);margin-bottom:8px}

/* ---------- Quotes ---------- */
.quote-block{background:var(--navy);color:#fff;border-radius:14px;padding:44px 48px;position:relative;margin:36px 0}
.quote-block::before{content:"“";position:absolute;top:2px;left:26px;font-size:90px;color:var(--gold);font-family:var(--serif);opacity:.5}
.quote-block p{font-family:var(--serif);font-size:21px;line-height:1.7}
.quote-block cite{display:block;margin-top:16px;color:var(--gold-light);font-style:normal;font-size:14px;letter-spacing:1px}

/* ---------- Footer ---------- */
.site-footer{background:#0a1630;color:#aebad1;font-size:14.5px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:56px 0 40px}
.footer-top h4{color:#fff;font-family:var(--serif);font-size:16px;margin-bottom:14px;letter-spacing:.5px}
.footer-top ul{list-style:none}
.footer-top li{margin-bottom:9px}
.footer-top a{color:#aebad1}
.footer-top a:hover{color:var(--gold-light)}
.footer-brand img{height:70px;margin-bottom:12px}
.footer-brand p{font-size:13.5px;line-height:1.7}
.footer-bottom{border-top:1px solid #1c2c4f;padding:18px 0;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:#7d8aa6}

/* ---------- Forms ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:34px;box-shadow:var(--shadow)}
.form-card label{display:block;font-size:13.5px;font-weight:600;color:var(--navy);margin:16px 0 6px;letter-spacing:.4px}
.form-card input,.form-card select,.form-card textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:8px;font-size:15px;font-family:var(--sans)}
.form-card input:focus,.form-card textarea:focus,.form-card select:focus{outline:2px solid var(--gold);border-color:var(--gold)}
.form-card textarea{min-height:110px;resize:vertical}
.form-note{font-size:12.5px;color:var(--gray-light);margin-top:6px}

/* ---------- Banner CTA ---------- */
.cta-banner{background:linear-gradient(120deg,var(--navy) 0%,var(--navy-3) 100%);color:#fff;border-radius:16px;padding:52px 48px;text-align:center;position:relative;overflow:hidden}
.cta-banner::before{content:"";position:absolute;top:-60px;right:-40px;width:260px;height:260px;border-radius:50%;background:rgba(201,162,39,.14)}
.cta-banner::after{content:"";position:absolute;bottom:-80px;left:-30px;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,.05)}
.cta-banner h2{font-family:var(--serif);font-size:clamp(26px,3.2vw,38px);position:relative;z-index:1}
.cta-banner p{color:#c6d2e6;margin:14px auto 26px;max-width:600px;position:relative;z-index:1}
.cta-banner .cta-row{position:relative;z-index:1}

/* ---------- Page hero (interior) ---------- */
.page-hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 55%,var(--navy-3) 100%);color:#fff;padding:74px 0 62px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;border-radius:50%;background:rgba(201,162,39,.12)}
.page-hero .crumbs{font-size:13px;color:#9fb0cc;letter-spacing:1px;text-transform:uppercase;margin-bottom:14px}
.page-hero h1{font-family:var(--serif);font-size:clamp(32px,4.4vw,50px);position:relative;z-index:1}
.page-hero p.lead{max-width:720px;margin-top:14px;font-size:17.5px;color:#c9d5e8;position:relative;z-index:1}
.page-hero .hero-img-badge{position:absolute;right:48px;bottom:-30px;width:300px;border-radius:14px;box-shadow:var(--shadow-lg);border:5px solid #fff;display:none}

/* ---------- Accordion / FAQ ---------- */
.faq details{border:1px solid var(--line);border-radius:10px;margin-bottom:12px;background:#fff;overflow:hidden}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:600;color:var(--navy);font-size:15.5px;list-style:none;position:relative;padding-right:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:13px;font-size:22px;color:var(--gold-dark);font-weight:700}
.faq details[open] summary::after{content:"–"}
.faq .faq-a{padding:0 20px 18px;color:var(--gray);font-size:15px}

/* ---------- Misc ---------- */
.breadcrumb-dots{display:flex;gap:8px;justify-content:center;margin-top:18px}
.breadcrumb-dots span{width:9px;height:9px;border-radius:50%;background:var(--gold-light);opacity:.5}
.badge{display:inline-block;background:var(--crimson);color:#fff;font-size:12px;font-weight:700;letter-spacing:1px;padding:4px 12px;border-radius:99px}
.paper-row{display:flex;justify-content:space-between;gap:18px;padding:16px 4px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.paper-row:last-child{border-bottom:none}
.paper-row .p-title{font-weight:600;color:var(--ink);font-size:15px}
.paper-row .p-meta{font-size:13px;color:var(--gray-light)}
.paper-row .p-cites{font-size:12.5px;color:var(--crimson);font-weight:700;white-space:nowrap}
.photo-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.photo-strip img{height:180px;width:100%;object-fit:cover;border-radius:10px;transition:.2s}
.photo-strip img:hover{transform:scale(1.03)}

/* ---------- Responsive ---------- */
@media(max-width:1020px){
  .g3,.g4{grid-template-columns:repeat(2,1fr)}
  .split,.footer-top{grid-template-columns:1fr;gap:34px}
  .photo-strip{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:720px){
  .nav-toggle{display:block}
  .main-nav{display:none;width:100%;flex-direction:column;align-items:stretch;padding:10px 0}
  .main-nav.open{display:flex}
  .lang-switch{margin-left:0;justify-content:center}
  .g3,.g4,.g2{grid-template-columns:1fr}
  .hero{min-height:460px}
  .quote-block{padding:32px 26px}
  .cta-banner{padding:40px 24px}
}

/* ---------- News expand ---------- */
.news-card .news-body{position:relative;max-height:0;overflow:hidden;transition:max-height .35s ease}
.news-card.open .news-body{max-height:1200px}
.news-card .expand-hint{display:inline-block;font-size:12px;color:var(--gold);cursor:pointer;margin-top:6px;border-bottom:1px dashed var(--gold)}
.news-card .expand-hint::after{content:' ▾'}
.news-card.open .expand-hint::after{content:' ▴'}
.news-detail summary{cursor:pointer;color:var(--gray);font-size:14.5px}
.news-detail summary::marker{display:none;content:''}
.news-detail .news-full{margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.news-detail .news-full p{color:var(--ink);font-size:15px;line-height:1.8}