/* =========================================================
   Hainan University Library — English Portal
   Shared stylesheet used by all 5 pages:
   home.html · admission.html · hours.html · collections.html · resources.html
   ========================================================= */

/* ============ tokens ============ */
:root{
  --blue:#035FB2; --blue-deep:#004098; --blue-dark:#0B2E5E; --blue-tint:#E9F1FA; --blue-line:#C9DDF2;
  --ink:#21262F; --ink-soft:#4A5160; --muted:#717680; --faint:#9A9EA8;
  --paper:#F8F6F1; --card:#FFFFFF; --line:#E6E1D7; --line-soft:#EFECE5;
  --gold:#F0B90B; --gold-deep:#C79A00; --green:#035FB2; --green-tint:#E9F1FA;
  /* legacy aliases -> blue scheme */
  --red:var(--blue); --red-deep:var(--blue-deep); --red-dark:var(--blue-dark); --red-tint:var(--blue-tint);
  --serif:"Source Serif 4", Georgia, "Times New Roman", serif;
  --sans:"IBM Plex Sans", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  --shadow:0 1px 2px rgba(33,38,47,.05), 0 8px 24px rgba(33,38,47,.06);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-deep)}
.container{max-width:1180px;margin-inline:auto;padding-inline:24px}
::selection{background:var(--blue);color:#fff}

/* ============ utility bar ============ */
.utilbar{background:var(--red-dark);color:rgba(255,255,255,.88);font-size:13px;letter-spacing:.02em}
.utilbar .container{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:34px;flex-wrap:wrap}
.utilbar a{color:#fff;opacity:.92}
.utilbar a:hover{opacity:1;text-decoration:underline}
.utilbar .util-left{display:flex;gap:18px;align-items:center}
.utilbar .util-right{display:flex;gap:18px;align-items:center}
.utilbar svg{width:13px;height:13px;vertical-align:-2px;margin-right:5px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ============ header / nav ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--card);border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:78px}
.brand{display:flex;align-items:center;gap:14px;min-width:0}
.brand-logo{height:54px;width:auto;display:block}
.main-nav{display:flex;align-items:center;gap:2px}
.main-nav a{display:block;padding:27px 14px 25px;font-size:15px;font-weight:500;color:var(--ink-soft);border-bottom:3px solid transparent;transition:color .18s,border-color .18s}
.main-nav a:hover{color:var(--red)}
.main-nav a.active{color:var(--red);border-bottom-color:var(--red);font-weight:600}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:8px;background:var(--card);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ hero ============ */
.hero{position:relative;min-height:500px;display:flex;align-items:center;color:#fff;overflow:hidden;background:var(--blue-dark)}
.hero img.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 38%}
.hero .hero-shade{position:absolute;inset:0;background:linear-gradient(100deg,rgba(3,24,56,.92) 8%,rgba(4,54,120,.66) 52%,rgba(4,54,120,.26) 100%)}
.hero .container{position:relative;z-index:2;padding-block:60px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;letter-spacing:.32em;text-transform:uppercase;color:#FFD24D;margin-bottom:20px}
.hero-eyebrow::before{content:"";width:34px;height:2px;background:#FFD24D}
.hero h1{font-family:var(--serif);font-size:clamp(34px,4.6vw,58px);font-weight:700;line-height:1.12;letter-spacing:.01em;max-width:760px;text-wrap:balance}
.hero .motto{margin-top:18px;font-family:var(--serif);font-style:italic;font-size:clamp(16px,1.6vw,20px);color:rgba(255,255,255,.85);max-width:660px}
.hero .lead{margin-top:16px;font-size:15.5px;color:rgba(255,255,255,.78);max-width:640px}
/* ============ multi-search band (as on the official site) ============ */
.search-band{background:var(--card);border-bottom:1px solid var(--line)}
.search-band .container{padding-block:26px}
.search-panel{border:1px solid var(--blue-line);border-radius:14px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.sp-tabs{display:flex;flex-wrap:wrap;background:var(--blue)}
.sp-tabs button{flex:1;min-width:130px;border:0;background:transparent;color:rgba(255,255,255,.85);font-family:var(--sans);font-size:14.5px;font-weight:600;padding:15px 12px;cursor:pointer;border-bottom:3px solid transparent;transition:background .18s,color .18s}
.sp-tabs button:hover{color:#fff}
.sp-tabs button.active{background:rgba(255,255,255,.14);color:#fff;border-bottom-color:var(--gold)}
.sp-body{display:none;padding:24px 26px}
.sp-body.active{display:block}
.sp-form{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.sp-form select{border:1px solid var(--line);border-radius:8px;padding:12px 12px;font-family:var(--sans);font-size:14.5px;color:var(--ink);background:#fff;min-width:150px;cursor:pointer}
.sp-form input[type=text]{flex:1;min-width:230px;border:1px solid var(--line);border-radius:8px;padding:12px 16px;font-family:var(--sans);font-size:16px;color:var(--ink)}
.sp-form input[type=text]:focus{outline:2px solid var(--blue);border-color:var(--blue)}
.sp-form button{border:0;background:var(--blue);color:#fff;font-family:var(--sans);font-weight:600;font-size:15px;padding:12px 30px;border-radius:8px;cursor:pointer;transition:background .18s}
.sp-form button:hover{background:var(--blue-deep)}
.sp-mini-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.sp-mini-tabs button{border:1px solid var(--line);background:#fff;color:var(--ink-soft);font-family:var(--sans);font-size:13.5px;font-weight:600;padding:7px 16px;border-radius:999px;cursor:pointer;transition:.18s}
.sp-mini-tabs button:hover{border-color:var(--blue);color:var(--blue)}
.sp-mini-tabs button.active{background:var(--blue);border-color:var(--blue);color:#fff}
.sp-radios{display:inline-flex;gap:16px;font-size:14px;color:var(--ink-soft);align-items:center}
.sp-radios label{margin-left:4px;cursor:pointer}
.sp-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.sp-links a{font-size:13.5px;font-weight:600;color:var(--blue);border:1px solid var(--blue-line);border-radius:999px;padding:6px 14px;transition:background .18s}
.sp-links a:hover{background:var(--blue-tint)}
.sp-external{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--blue-deep)}
.sp-external svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.sp-hint{font-size:12.5px;color:var(--muted);margin-top:12px}

/* ============ stats band ============ */
.stats{background:linear-gradient(180deg,rgba(0,64,152,.15),rgba(0,64,152,0));}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-block:30px}
.stat{background:var(--card);border:1px solid var(--line);border-top:3px solid var(--red);border-radius:0 0 10px 10px;padding:22px 24px;text-align:center}
.stat b{display:block;font-family:var(--serif);font-size:34px;font-weight:700;color:var(--red);line-height:1.1}
.stat b small{font-size:17px;font-weight:600}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);letter-spacing:.03em}

/* ============ sections ============ */
.section{padding-block:64px}
.section.alt{background:var(--card);border-block:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.sec-head h2{font-family:var(--serif);font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.2;color:var(--ink)}
.sec-head .eyebrow{font-size:12.5px;font-weight:600;letter-spacing:.26em;text-transform:uppercase;color:var(--red);margin-bottom:8px;display:block}
.sec-more{font-size:14px;font-weight:600;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;border-bottom:2px solid var(--red);padding-bottom:2px}
.sec-more svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ============ quick cards (home) ============ */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quick-card{display:flex;flex-direction:column;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:26px 24px;transition:border-color .18s,transform .18s;color:var(--ink)}
.quick-card:hover{border-color:var(--red);transform:translateY(-3px);color:var(--ink)}
.quick-card .qc-ic{width:46px;height:46px;border-radius:10px;background:var(--red-tint);display:flex;align-items:center;justify-content:center}
.quick-card .qc-ic svg{width:24px;height:24px;stroke:var(--red);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.quick-card h3{font-family:var(--serif);font-size:19px;font-weight:700;line-height:1.25}
.quick-card p{font-size:13.5px;color:var(--muted);flex:1}
.quick-card .go{font-size:13.5px;font-weight:600;color:var(--red);display:inline-flex;align-items:center;gap:6px}
.quick-card .go svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s}
.quick-card:hover .go svg{transform:translateX(3px)}

/* ============ two-column home lists ============ */
.home-cols{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.list-panel{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.list-panel .lp-head{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;border-bottom:1px solid var(--line);background:var(--paper)}
.list-panel .lp-head h3{font-family:var(--serif);font-size:19px;font-weight:700;display:flex;align-items:center;gap:10px}
.list-panel .lp-head h3 .dot{width:9px;height:9px;border-radius:50%;background:var(--red)}
.list-panel .lp-head a{font-size:13px;font-weight:600;color:var(--red)}
.list-item{display:flex;align-items:center;gap:14px;padding:13px 24px;border-bottom:1px solid var(--line-soft);transition:background .15s;position:relative}
.list-item:last-child{border-bottom:0}
.list-item:hover{background:var(--red-tint)}
.list-item .t{flex:1;font-size:14.5px;color:var(--ink);line-height:1.45;position:relative}
.list-item .t::after{content:"";position:absolute;inset:0}
.list-item:hover .t{color:var(--red-deep)}
.list-item .d{flex:0 0 auto;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.badge-new{flex:0 0 auto;background:var(--red);color:#fff;font-size:10.5px;font-weight:700;letter-spacing:.08em;padding:2px 7px;border-radius:4px}

/* ============ resources strip (home) ============ */
.res-strip{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.res-item{display:flex;align-items:flex-start;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px 22px;transition:border-color .18s}
.res-item:hover{border-color:var(--red)}
.res-item .tag{flex:0 0 auto;background:var(--red-tint);color:var(--red-deep);font-size:11.5px;font-weight:600;padding:3px 9px;border-radius:999px;margin-top:3px;letter-spacing:.02em}
.res-item .t{flex:1;font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.45}
.res-item .meta{flex:0 0 auto;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ============ page hero (inner pages) ============ */
.page-hero{background:linear-gradient(120deg,var(--red-dark),var(--red));color:#fff;padding-block:54px 46px}
.page-hero .crumb{font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;color:#FFD24D;font-weight:600;margin-bottom:12px}
.page-hero h1{font-family:var(--serif);font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.15}
.page-hero p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.82);max-width:780px}

/* ============ content blocks ============ */
.content-wrap{max-width:960px}
.lead-note{background:var(--green-tint);border-left:4px solid var(--green);border-radius:0 10px 10px 0;padding:18px 22px;font-size:14.5px;color:#24405E;margin-bottom:36px}
.lead-note b{color:var(--green)}
.cblock{margin-bottom:40px}
.cblock h2{font-family:var(--serif);font-size:23px;font-weight:700;color:var(--ink);margin-bottom:6px;display:flex;align-items:baseline;gap:12px}
.cblock h2 .no{font-size:14px;font-weight:700;color:#fff;background:var(--red);border-radius:6px;padding:3px 9px;letter-spacing:.04em;flex:0 0 auto}
.cblock h3{font-family:var(--serif);font-size:18px;font-weight:700;color:var(--red-dark);margin:20px 0 10px}
.cblock p{margin-bottom:10px;color:var(--ink-soft);font-size:15px}
.cblock ul.c-list{list-style:none;margin:8px 0 4px}
.cblock ul.c-list li{position:relative;padding-left:22px;margin-bottom:9px;color:var(--ink-soft);font-size:15px}
.cblock ul.c-list li::before{content:"";position:absolute;left:2px;top:9px;width:7px;height:7px;border-radius:2px;background:var(--red)}
.cblock ul.c-list li b{color:var(--ink)}
.cblock .note{font-size:13px;color:var(--muted);margin-top:10px}

/* ============ tables ============ */
.tbl-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--card);margin:14px 0 6px;-webkit-overflow-scrolling:touch}
table.tbl{width:100%;border-collapse:collapse;min-width:520px;table-layout:fixed}
table.tbl caption{text-align:left;font-family:var(--serif);font-weight:700;font-size:17px;color:var(--ink);padding:16px 20px;border-bottom:1px solid var(--line);background:var(--paper)}
table.tbl th,table.tbl td{padding:12px 18px;border-bottom:1px solid var(--line-soft);text-align:left;vertical-align:top;font-size:14px;line-height:1.55}
table.tbl th{background:var(--red-tint);color:var(--red-dark);font-weight:600;font-size:13.5px}
table.tbl tr:last-child td{border-bottom:0}
table.tbl td .sub{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}
table.tbl td b{color:var(--ink)}
.tbl-note{font-size:12.5px;color:var(--muted);margin:8px 0 18px}

/* ============ tabs (resources) ============ */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tabs button{border:1px solid var(--line);background:var(--card);color:var(--ink-soft);font-family:var(--sans);font-size:14px;font-weight:600;padding:9px 18px;border-radius:999px;cursor:pointer;transition:.18s}
.tabs button:hover{border-color:var(--red);color:var(--red)}
.tabs button.active{background:var(--red);border-color:var(--red);color:#fff}
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.res-card{display:flex;flex-direction:column;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;transition:border-color .18s,transform .18s}
.res-card:hover{border-color:var(--red);transform:translateY(-2px)}
.res-card .rc-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.res-card .rc-tag{font-size:11px;font-weight:600;color:var(--red-deep);background:var(--red-tint);padding:2px 8px;border-radius:999px;white-space:nowrap}
.res-card .rc-cat{font-size:11px;color:var(--muted);white-space:nowrap}
.res-card h4{font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.4}
.res-card:hover h4{color:var(--red-deep)}
.res-card .rc-go{font-size:12.5px;font-weight:600;color:var(--red);display:inline-flex;align-items:center;gap:5px}
.res-card .rc-go svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.access-box{background:var(--blue-tint);border:1px solid var(--blue-line);border-radius:12px;padding:22px 26px;margin-bottom:34px}
.access-box h3{font-family:var(--serif);font-size:18px;font-weight:700;color:var(--red-dark);margin-bottom:12px;display:flex;align-items:center;gap:10px}
.access-box h3 svg{width:20px;height:20px;stroke:var(--red);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.access-box ul{list-style:none}
.access-box li{position:relative;padding-left:20px;margin-bottom:8px;font-size:14.5px;color:#24405E}
.access-box li::before{content:"";position:absolute;left:2px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--red)}
.access-box li b{color:var(--red-dark)}
.access-box .lnk{font-weight:600;color:var(--red);word-break:break-all}

/* ============ contact band / footer ============ */
.contact-band{background:var(--red-dark);color:rgba(255,255,255,.88);padding-block:44px}
.contact-band .container{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.contact-band h3{font-family:var(--serif);color:#fff;font-size:17px;margin-bottom:12px;letter-spacing:.02em}
.contact-band p,.contact-band a{font-size:14px;color:rgba(255,255,255,.8);display:block;margin-bottom:7px}
.contact-band a:hover{color:#fff}
.contact-band svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;vertical-align:-2px;margin-right:8px}
.site-footer{background:#06203F;color:rgba(255,255,255,.62);padding-block:20px;font-size:13px}
.site-footer .container{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.site-footer a{color:rgba(255,255,255,.82)}
.site-footer a:hover{color:#fff}

/* ============ inline photos ============ */
.inline-photo{margin:0 0 34px}
.inline-photo img{width:100%;border-radius:12px;border:1px solid var(--line);aspect-ratio:16/9;object-fit:cover}
.inline-photo figcaption{font-size:12.5px;color:var(--muted);margin-top:8px;padding-left:2px}
.inline-photo.photo-right{display:grid;grid-template-columns:1.25fr .75fr;gap:26px;align-items:center}
.inline-photo.photo-right figcaption{margin-top:0}

/* ============ responsive ============ */
@media (max-width:1020px){
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .res-grid{grid-template-columns:repeat(2,1fr)}
  .stats .container{grid-template-columns:repeat(2,1fr)}
  .contact-band .container{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--card);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:8px 0;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .main-nav a{padding:15px 26px;border-bottom:1px solid var(--line-soft);border-left:3px solid transparent}
  .main-nav a.active{border-bottom-color:var(--line-soft);border-left-color:var(--red);background:var(--red-tint)}
  .nav-toggle{display:flex}
  .home-cols{grid-template-columns:1fr}
  .res-strip{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .hero{min-height:480px}
}
@media (max-width:600px){
  .brand-logo{height:40px}
  .quick-grid{grid-template-columns:1fr}
  .res-grid{grid-template-columns:1fr}
  .stats .container{grid-template-columns:1fr 1fr;gap:12px}
  .stat{padding:16px 12px}
  .stat b{font-size:26px}
  .stat span{font-size:14px}
  .quick-card p{font-size:14px}
  .contact-band .container{grid-template-columns:1fr}
  .utilbar .util-left{display:none}
  .utilbar a{padding:8px 10px}
  .section{padding-block:48px}
  .list-item{padding:15px 18px}
  .list-item .t{font-size:15px}
  .list-item .d{font-size:12.5px}
  .res-item .t{font-size:15px}
  .res-item .tag{font-size:12px}
  .sec-more{min-height:36px;align-items:center}
  .inline-photo.photo-right{grid-template-columns:1fr;gap:14px}
  .inline-photo img{aspect-ratio:4/3}
  .sp-tabs button{min-width:33.333%;font-size:13px;padding:12px 8px}
  .sp-body{padding:18px}
  .sp-form{flex-direction:column;align-items:stretch}
  .sp-form input[type=text]{min-width:0}
  .sp-form select{width:100%}
  .sp-form button{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}