:root{
  --bg:#08111f;--surface:#111d30;--surface2:#17263d;--text:#f8fafc;--muted:#a8b3c5;
  --primary:#42c3ff;--accent:#8b95ff;--border:#2d405c;--shadow:0 14px 42px rgba(0,0,0,.18);
  --font-size:17px;--radius:18px
}
:root[data-theme="light"]{
  --bg:#f4f7fb;--surface:#fff;--surface2:#edf3fa;--text:#132033;--muted:#627084;
  --primary:#0369a1;--accent:#4f46e5;--border:#d5deea;--shadow:0 14px 38px rgba(31,50,77,.10)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:"Tahoma","Arial",sans-serif;
  font-size:var(--font-size);line-height:1.9;transition:background .25s,color .25s
}
a{color:inherit}
button,input{font:inherit}
.reading-progress{
  position:fixed;inset:0 0 auto 0;height:4px;background:transparent;z-index:3000
}
.reading-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--accent))}
.topbar{
  position:sticky;top:0;z-index:2000;background:color-mix(in srgb,var(--surface) 94%,transparent);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--border);box-shadow:0 5px 20px rgba(0,0,0,.08)
}
.topbar-inner{
  max-width:1480px;margin:auto;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px
}
.brand{display:flex;align-items:center;gap:13px;min-width:0}
.brand-mark{
  width:48px;height:48px;border-radius:16px;display:grid;place-items:center;font-size:25px;
  background:linear-gradient(135deg,var(--primary),var(--accent));color:white;box-shadow:var(--shadow)
}
.brand h1{font-size:1.05rem;margin:0;line-height:1.45}
.brand p{font-size:.76rem;color:var(--muted);margin:2px 0 0}
.controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.control-btn,.menu-btn{
  border:1px solid var(--border);background:var(--surface2);color:var(--text);padding:8px 11px;
  border-radius:11px;cursor:pointer;transition:.2s
}
.control-btn:hover,.menu-btn:hover{transform:translateY(-1px);border-color:var(--primary)}
.menu-btn{display:none}
.layout{max-width:1480px;margin:auto;display:grid;grid-template-columns:305px minmax(0,1fr);gap:28px;padding:26px 22px}
.sidebar{
  position:sticky;top:92px;align-self:start;max-height:calc(100vh - 115px);overflow:auto;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)
}
.sidebar h2{font-size:1.02rem;color:var(--primary);margin:0 0 12px}
.search-wrap{position:relative;margin-bottom:15px}
.search-wrap input{
  width:100%;padding:11px 38px 11px 12px;border-radius:12px;border:1px solid var(--border);
  background:var(--surface2);color:var(--text);outline:none
}
.search-wrap input:focus{border-color:var(--primary)}
.search-icon{position:absolute;right:12px;top:9px;color:var(--muted)}
.nav-list{list-style:none;padding:0;margin:0}
.nav-list li+li{margin-top:7px}
.nav-list a{
  display:block;text-decoration:none;color:var(--muted);padding:10px 12px;border-radius:11px;
  border:1px solid transparent;font-size:.9rem
}
.nav-list a:hover,.nav-list a.active{
  color:var(--text);background:color-mix(in srgb,var(--primary) 12%,transparent);border-color:color-mix(in srgb,var(--primary) 30%,transparent)
}
.main{min-width:0}
.hero{
  border:1px solid var(--border);border-radius:25px;padding:38px;margin-bottom:26px;
  background:
    radial-gradient(circle at 12% 5%,color-mix(in srgb,var(--primary) 24%,transparent),transparent 34%),
    radial-gradient(circle at 90% 15%,color-mix(in srgb,var(--accent) 22%,transparent),transparent 30%),
    var(--surface);box-shadow:var(--shadow)
}
.hero .eyebrow{color:var(--primary);font-weight:700}
.hero h2{font-size:clamp(1.8rem,4vw,3rem);line-height:1.35;margin:8px 0 10px}
.hero p{color:var(--muted);max-width:900px;margin:0}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:24px}
.stat{background:var(--surface2);border:1px solid var(--border);border-radius:14px;padding:15px;text-align:center}
.stat strong{display:block;font-size:1.45rem;color:var(--primary)}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.card,.article{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)
}
.card{padding:24px;display:flex;flex-direction:column;gap:12px}
.card .icon{font-size:2rem}
.card h3{margin:0;font-size:1.25rem}
.card p{margin:0;color:var(--muted)}
.card a{
  margin-top:auto;text-decoration:none;background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;padding:10px 15px;border-radius:12px;display:inline-flex;justify-content:center;font-weight:700
}
.article{padding:34px;margin-bottom:22px;scroll-margin-top:110px}
.article h1,.article h2{line-height:1.45}
.article h1{font-size:clamp(1.7rem,3.5vw,2.55rem);margin-top:0}
.article h2{font-size:1.45rem;color:var(--primary);border-bottom:1px solid var(--border);padding-bottom:10px}
.article h3{font-size:1.1rem;color:var(--accent);margin-top:26px}
.article p,.article li{color:var(--text)}
.lead{font-size:1.08rem;color:var(--muted)!important}
.callout{
  border-right:4px solid var(--primary);background:color-mix(in srgb,var(--primary) 8%,var(--surface2));
  padding:16px 18px;border-radius:12px;margin:18px 0
}
.references{
  background:var(--surface2);border:1px solid var(--border);border-radius:14px;padding:18px;margin-top:24px
}
.references h3{margin-top:0}
.meta{display:flex;flex-wrap:wrap;gap:8px;margin:15px 0 24px}
.badge{background:var(--surface2);border:1px solid var(--border);border-radius:999px;padding:5px 10px;color:var(--muted);font-size:.78rem}
.search-hidden{display:none!important}
.no-results{
  display:none;background:var(--surface);border:1px dashed var(--border);padding:25px;border-radius:16px;text-align:center;color:var(--muted)
}
.back-link{display:inline-block;margin-bottom:18px;color:var(--primary);text-decoration:none;font-weight:700}
footer{border-top:1px solid var(--border);padding:25px;text-align:center;color:var(--muted);margin-top:30px}
@media(max-width:980px){
  .layout{grid-template-columns:1fr}
  .menu-btn{display:inline-block}
  .sidebar{display:none;position:fixed;inset:84px 12px auto 12px;z-index:1900;max-height:75vh}
  .sidebar.open{display:block}
  .grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:640px){
  .topbar-inner{padding:10px 12px}
  .brand p{display:none}
  .brand h1{font-size:.9rem}
  .brand-mark{width:40px;height:40px;border-radius:13px}
  .controls .label{display:none}
  .layout{padding:14px 12px}
  .hero,.article{padding:22px}
  .stats{grid-template-columns:1fr 1fr}
}
.directory{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:20px 0}
.directory a{display:block;text-decoration:none;background:var(--surface2);border:1px solid var(--border);border-radius:14px;padding:16px}
.directory a strong{display:block;color:var(--primary);margin-bottom:5px}
.directory a span{color:var(--muted);font-size:.86rem}
.glossary-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.term{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px}
.term h3{margin:0 0 8px;color:var(--primary)}
.term .en{color:var(--accent);font-size:.82rem}
.term p{margin:8px 0 0;color:var(--muted)}
.citation-box{background:var(--surface2);border:1px dashed var(--primary);padding:14px;border-radius:12px;margin-top:18px;font-size:.88rem}
@media(max-width:850px){.directory{grid-template-columns:1fr 1fr}.glossary-grid{grid-template-columns:1fr}}
@media(max-width:520px){.directory{grid-template-columns:1fr}}
@media print{
 .topbar,.sidebar,.reading-progress,.controls,.back-link,.no-results{display:none!important}
 body{background:#fff;color:#000;font-size:12pt}
 .layout{display:block;max-width:none;padding:0}
 .article,.card,.hero{box-shadow:none;border:1px solid #bbb;break-inside:avoid}
 a{color:#000;text-decoration:none}
}

.timeline{position:relative;margin:25px 0;padding-right:28px}
.timeline:before{content:"";position:absolute;right:8px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline-item{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:17px;margin-bottom:14px}
.timeline-item:before{content:"";position:absolute;right:-25px;top:24px;width:12px;height:12px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px var(--bg)}
.timeline-item time{color:var(--accent);font-weight:700}
.entity-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}
.entity-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:18px}
.entity-card h3{margin:0 0 5px;color:var(--primary)}
.entity-card .role{font-size:.82rem;color:var(--accent)}
.entity-card p{color:var(--muted);font-size:.9rem}
.knowledge-map{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.map-node{border:1px solid var(--border);background:var(--surface2);padding:15px;border-radius:14px;text-align:center}
.map-node strong{display:block;color:var(--primary)}
.map-node a{text-decoration:none}
@media(max-width:900px){.entity-grid{grid-template-columns:1fr 1fr}.knowledge-map{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.entity-grid,.knowledge-map{grid-template-columns:1fr}}

.library-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.library-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:19px;display:flex;flex-direction:column;gap:10px}
.library-card .tag{display:inline-block;width:max-content;background:var(--surface2);border:1px solid var(--border);border-radius:999px;padding:4px 10px;font-size:.76rem;color:var(--accent)}
.library-card h3{margin:0;color:var(--primary)} .library-card p{color:var(--muted);margin:0;flex:1}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:14px;margin:10px 0;padding:14px 16px}
.faq summary{cursor:pointer;color:var(--primary);font-weight:700}
.meta-line{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 18px}
.meta-line span{background:var(--surface2);border:1px solid var(--border);border-radius:999px;padding:5px 10px;font-size:.78rem}
@media(max-width:900px){.library-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.library-grid{grid-template-columns:1fr}}

.portal-tools{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0}
.portal-tool{background:var(--surface2);border:1px solid var(--border);border-radius:14px;padding:15px;text-decoration:none}
.portal-tool strong{display:block;color:var(--primary);margin-bottom:5px}
.version-list{display:grid;gap:12px}
.version-item{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px}
.author-profile{display:grid;grid-template-columns:120px 1fr;gap:20px;align-items:center}
.author-badge{width:110px;height:110px;border-radius:50%;display:grid;place-items:center;background:var(--surface2);border:2px solid var(--primary);font-size:2rem;font-weight:800}
.research-tools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.research-tool{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:18px}
@media(max-width:800px){.portal-tools{grid-template-columns:1fr 1fr}.author-profile{grid-template-columns:1fr}.research-tools{grid-template-columns:1fr}}
@media(max-width:480px){.portal-tools{grid-template-columns:1fr}}

.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:18px;text-align:center}
.stat-card strong{display:block;font-size:1.8rem;color:var(--primary)}
.topic-cloud{display:flex;flex-wrap:wrap;gap:10px}
.topic-chip{background:var(--surface2);border:1px solid var(--border);border-radius:999px;padding:8px 13px}
.alpha-nav{display:flex;flex-wrap:wrap;gap:8px;margin:15px 0}
.alpha-nav a{background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:6px 10px;text-decoration:none}
.index-list{columns:2;column-gap:24px}
.index-list li{break-inside:avoid;margin:8px 0}
.quiz-question{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:16px;margin:14px 0}
.quiz-question label{display:block;padding:6px 0;cursor:pointer}
.quiz-result{font-weight:800;font-size:1.1rem;margin-top:16px}
@media(max-width:800px){.stats-grid{grid-template-columns:1fr 1fr}.index-list{columns:1}}
@media(max-width:480px){.stats-grid{grid-template-columns:1fr}}

.hero-metrics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin:18px 0}
.hero-metric{padding:14px;border:1px solid var(--border);background:var(--surface);border-radius:14px;text-align:center}
.hero-metric strong{display:block;color:var(--primary);font-size:1.55rem}
.encyclopedia-entry{max-width:950px}
.entry-lead{font-size:1.15rem;line-height:2}
.level-badge,.category-badge{display:inline-block;padding:5px 10px;border-radius:999px;border:1px solid var(--border);margin:3px}
.level-badge{background:var(--surface2)}
.article-actions{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.article-actions button,.article-actions a{padding:8px 12px;border:1px solid var(--border);border-radius:10px;background:var(--surface2);color:inherit;text-decoration:none;cursor:pointer}
.search-panel{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:18px;margin-bottom:18px}
.search-panel input,.search-panel select{width:100%;padding:11px;margin:6px 0;border-radius:10px;border:1px solid var(--border);background:var(--surface2);color:inherit}
.search-results{display:grid;gap:12px}
.search-result{padding:15px;border:1px solid var(--border);border-radius:14px;background:var(--surface)}
.database-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.database-card{padding:15px;border:1px solid var(--border);border-radius:14px;background:var(--surface)}
.ref-list li{margin:10px 0}
@media(max-width:850px){.hero-metrics{grid-template-columns:1fr 1fr}.database-grid{grid-template-columns:1fr}}
@media(max-width:480px){.hero-metrics{grid-template-columns:1fr}}


/* International Conference Edition 2026.10 */
:root{--conference-gold:#d7b55a;--conference-blue:#102f5e;--conference-ink:#071326}
.conference-ribbon{background:linear-gradient(90deg,#8a6416,#d7b55a,#8a6416);color:#071326;text-align:center;padding:8px 12px;font-weight:900;letter-spacing:.4px}
.conference-hero{position:relative;overflow:hidden;border:1px solid var(--border);border-radius:24px;padding:34px;background:radial-gradient(circle at 10% 10%,rgba(215,181,90,.18),transparent 34%),linear-gradient(135deg,var(--surface),var(--surface2));margin-bottom:18px}
.conference-hero:after{content:'2026.10';position:absolute;left:20px;bottom:-20px;font-size:6rem;font-weight:900;color:rgba(215,181,90,.07)}
.conference-kicker{color:var(--conference-gold);font-weight:900;letter-spacing:1px;text-transform:uppercase}
.conference-title-en{font-family:Arial,sans-serif;color:var(--muted);font-size:1.05rem;direction:ltr;text-align:right}
.profile-conference{display:grid;grid-template-columns:260px 1fr;gap:28px;align-items:start}
.profile-photo{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:center 28%;border-radius:24px;border:2px solid var(--conference-gold);box-shadow:0 18px 50px rgba(0,0,0,.25)}
.profile-signature{font-size:1.2rem;color:var(--conference-gold);font-weight:900}
.bilingual-block{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.en-panel{direction:ltr;text-align:left;font-family:Arial,sans-serif}
.policy-grid,.achievement-grid,.portfolio-grid,.conference-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.policy-card,.achievement-card,.portfolio-card,.conference-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:18px}
.policy-card h3,.achievement-card h3,.portfolio-card h3,.conference-card h3{color:var(--primary);margin-top:0}
.portfolio-card a{word-break:break-word}
.editorial-seal{display:inline-grid;place-items:center;width:110px;height:110px;border-radius:50%;border:3px double var(--conference-gold);color:var(--conference-gold);font-weight:900;text-align:center;line-height:1.35;background:var(--surface2)}
.conference-nav{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0}
.conference-nav a{padding:8px 12px;border-radius:999px;background:var(--surface2);border:1px solid var(--border);text-decoration:none}
.media-placeholder{aspect-ratio:16/9;display:grid;place-items:center;border:1px dashed var(--conference-gold);border-radius:18px;background:linear-gradient(135deg,var(--surface2),var(--surface));text-align:center;padding:20px}
.print-cover{min-height:75vh;display:grid;place-items:center;text-align:center;border:3px double var(--conference-gold);border-radius:24px;padding:40px;background:radial-gradient(circle,rgba(215,181,90,.16),transparent 55%)}
.verification-note{font-size:.88rem;color:var(--muted);border-right:4px solid var(--conference-gold);padding:10px 14px;background:var(--surface2);border-radius:10px}
@media(max-width:900px){.profile-conference,.bilingual-block{grid-template-columns:1fr}.profile-photo{max-width:320px}.policy-grid,.achievement-grid,.portfolio-grid,.conference-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.policy-grid,.achievement-grid,.portfolio-grid,.conference-grid{grid-template-columns:1fr}.conference-hero{padding:22px}}
@media print{.conference-ribbon,.conference-nav{display:none!important}.print-cover{page-break-after:always}.profile-photo{max-width:210px}.policy-grid,.achievement-grid,.portfolio-grid{grid-template-columns:1fr 1fr}.article{break-inside:auto}}