:root {
  --seed-primary: #1a2744;
  --seed-accent-ml: #5b6abf;
  --seed-accent-vc: #2d9cdb;
  --seed-bg: #fafbfd;
  --seed-fg: #1a2744;
  --seed-surface: #ffffff;
  --seed-radius: 8;
  --primary-deep: #0f1923;
  --primary: var(--seed-primary);
  --primary-mid: #2c3e56;
  --accent-ml: var(--seed-accent-ml);
  --accent-ml-soft: #ecedf8;
  --accent-vc: var(--seed-accent-vc);
  --accent-vc-soft: #e6f4fb;
  --bg: var(--seed-bg);
  --bg-alt: #f0f3f8;
  --surface: var(--seed-surface);
  --ink: var(--seed-fg);
  --muted: #5a6d82;
  --muted-light: #8d9bae;
  --line: #dce3ec;
  --line-light: #edf1f6;
  --font-display: 'Inter', 'Noto Sans SC', 'PingFang SC', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --text-xs: 0.75rem; --text-sm: 0.875rem; --text-base: 1rem;
  --text-lg: 1.125rem; --text-xl: 1.25rem; --text-2xl: 1.563rem;
  --text-3xl: 1.953rem; --text-display: clamp(2.2rem, 4vw, 3.2rem);
  --sp-1: 0.25rem; --sp-2: 0.5rem; --sp-3: 0.75rem; --sp-4: 1rem;
  --sp-5: 1.25rem; --sp-6: 1.5rem; --sp-8: 2rem; --sp-10: 2.5rem;
  --sp-12: 3rem; --sp-16: 4rem; --sp-20: 5rem;
  --r-sm: 4px; --r-md: 8px; --r-lg: 12px; --r-xl: 16px; --r-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(15,25,35,0.05);
  --shadow-md: 0 4px 16px rgba(15,25,35,0.07);
  --shadow-lg: 0 8px 32px rgba(15,25,35,0.10);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 200ms;
  --max-w: 1200px;
  --nav-h: 64px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-body); font-size: var(--text-base); line-height: 1.7; color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
:focus-visible { outline: 2px solid var(--accent-vc); outline-offset: 2px; border-radius: var(--r-sm); }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } html { scroll-behavior: auto; } }

.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--sp-6); }
.section { padding: var(--sp-20) 0; }
.section--alt { background: var(--bg-alt); }
.section-title { font-family: var(--font-display); font-size: var(--text-3xl); font-weight: 600; letter-spacing: -0.02em; color: var(--ink); margin-bottom: var(--sp-4); }
.section-subtitle { font-size: var(--text-sm); font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--sp-2); }
.section-header { margin-bottom: var(--sp-12); }

/* NAVIGATION */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: var(--nav-h); background: #fff; border-bottom: 1px solid var(--line); transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease); }
.nav.is-scrolled { border-bottom-color: var(--line); background: #fff; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.nav-brand { display: flex; align-items: center; gap: var(--sp-3); text-decoration: none; flex-shrink: 0; }
.nav-brand-text { display: flex; flex-direction: column; line-height: 1.3; }
.nav-brand-name { font-family: var(--font-display); font-weight: 600; font-size: var(--text-sm); letter-spacing: 0.02em; color: var(--primary); }
.nav-brand-sub { font-size: 0.7rem; font-weight: 500; color: var(--muted); letter-spacing: 0.01em; white-space: nowrap; }
.nav-brand-logo { width: 32px; height: 32px; border-radius: var(--r-md); object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: var(--sp-1); }
.nav-link { padding: var(--sp-2) var(--sp-3); font-size: var(--text-sm); font-weight: 500; color: var(--muted); border-radius: var(--r-md); transition: color var(--duration) var(--ease), background var(--duration) var(--ease); white-space: nowrap; }
.nav-link:hover { color: var(--ink); background: rgba(26,39,68,0.04); }
.nav-link.is-active { color: var(--primary); background: rgba(26,39,68,0.06); }
.nav-hamburger { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: var(--r-md); color: var(--ink); }
.nav-hamburger svg { width: 20px; height: 20px; }
.nav-mobile-menu { display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; background: var(--surface); border-bottom: 1px solid var(--line); padding: var(--sp-4) var(--sp-6); box-shadow: var(--shadow-md); z-index: 99; }
.nav-mobile-menu.is-open { display: block; }
.nav-mobile-menu .nav-link { display: block; padding: var(--sp-3) 0; font-size: var(--text-base); }

/* HERO */
.hero { position: relative; min-height: 100vh; display: flex; flex-direction: column; background: var(--primary-deep); overflow: hidden; padding: var(--nav-h) 0 0; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15,25,35,0.62) 0%, rgba(15,25,35,0.7) 48%, rgba(15,25,35,0.84) 100%), url('fig/背景.jpg') center/cover no-repeat; pointer-events: none; z-index: 0; }
.hero-bg { position: absolute; inset: 0; opacity: 0.08; pointer-events: none; z-index: 1; }
.hero-content { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; text-align: center; padding: var(--sp-16) 0 var(--sp-4); }
.hero-logos { position: absolute; top: calc(var(--nav-h) + var(--sp-5)); left: var(--sp-6); z-index: 3; display: flex; flex-direction: column; gap: var(--sp-5); }
.hero-logo-hdu { display: flex; align-items: center; gap: var(--sp-4); }
.hero-logo-seal { height: 72px; width: auto; object-fit: contain; filter: brightness(0) invert(1); opacity: 0.85; }
.hero-logo-word { height: 100px; width: auto; object-fit: contain; filter: brightness(0) invert(1); opacity: 0.85; }
.hero-logo-mlvc { height: 80px; width: auto; object-fit: contain; filter: brightness(0) invert(1); opacity: 0.8; }
.hero-title { font-family: var(--font-display); font-size: var(--text-display); font-weight: 600; letter-spacing: -0.02em; color: #fff; line-height: 1.15; margin-bottom: var(--sp-4); text-shadow: 0 2px 16px rgba(0,0,0,0.5); }
.hero-title-en { display: block; font-family: var(--font-display); font-size: clamp(0.85rem, 1.5vw, 1.1rem); font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(255,255,255,0.45); margin-top: var(--sp-3); }
/* HERO ABOUT */
.hero-about { position: relative; z-index: 2; padding: 0 0 var(--sp-20); }
.section-subtitle--light { color: rgba(255,255,255,0.55); text-shadow: 0 2px 10px rgba(0,0,0,0.5); }
.section-title--light { color: #fff; text-shadow: 0 2px 16px rgba(0,0,0,0.55); }
.about-copy.about-copy--light { max-width: 82ch; font-size: 1.02rem; font-weight: 450; line-height: 1.95; color: #fff; text-shadow: none; display: grid; gap: var(--sp-4); }
.about-copy.about-copy--light p { margin: 0; padding: 0; background: none; border: none; border-radius: 0; backdrop-filter: none; }

/* ABOUT */
.about-copy { max-width: 65ch; font-size: var(--text-base); line-height: 1.9; color: var(--primary-mid); }
.about-copy p + p { margin-top: var(--sp-5); }

/* FACULTY */
.faculty-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--sp-6); }
.faculty-card { display: flex; flex-direction: column; height: 100%; box-sizing: border-box; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-xl); padding: var(--sp-8); transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), border-color var(--duration) var(--ease); }
.faculty-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--primary); }
.faculty-head { display: flex; align-items: center; gap: var(--sp-4); margin-bottom: var(--sp-5); }
.faculty-avatar { display: none; }
.faculty-name { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 600; letter-spacing: -0.01em; color: var(--ink); }
.faculty-role { font-size: var(--text-sm); color: var(--muted); margin-top: 2px; }
.faculty-bio { font-size: var(--text-sm); line-height: 1.7; color: var(--primary-mid); margin-bottom: var(--sp-5); }
.faculty-actions { display: flex; align-items: center; gap: var(--sp-4); margin-top: auto; padding-top: var(--sp-4); border-top: 1px solid var(--line-light); flex-wrap: wrap; }
.faculty-action-link { font-size: var(--text-sm); font-weight: 500; color: var(--primary); display: inline-flex; align-items: center; gap: var(--sp-1); transition: color var(--duration) var(--ease); }
.faculty-action-link:hover { color: var(--accent-vc); }
.faculty-action-link svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 1.8; }

/* RESEARCH OVERVIEW */
.research-layout { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-10); align-items: stretch; }
.research-group { display: flex; flex-direction: column; }
.research-group-header { display: flex; align-items: baseline; gap: var(--sp-3); margin-bottom: var(--sp-4); }
.research-group-title { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 600; letter-spacing: -0.01em; color: var(--ink); }
.research-group-en { font-size: var(--text-sm); font-weight: 500; color: var(--muted-light); letter-spacing: 0.02em; }
.research-group-bar { width: 32px; height: 3px; border-radius: 2px; margin-bottom: var(--sp-6); }
.research-group--ml .research-group-bar { background: var(--accent-ml); }
.research-group--vc .research-group-bar { background: var(--accent-vc); }
.research-grid { display: grid; grid-template-rows: repeat(3, minmax(0, 1fr)); gap: var(--sp-4); flex: 1; }
.research-card { display: flex; flex-direction: column; width: 100%; height: 100%; text-align: left; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: var(--sp-6); padding-right: calc(var(--sp-6) + 28px); transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), border-color var(--duration) var(--ease); position: relative; cursor: pointer; }
.research-card:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.research-group--ml .research-card:hover { border-color: var(--accent-ml); }
.research-group--vc .research-card:hover { border-color: var(--accent-vc); }
.research-card-title { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 600; letter-spacing: -0.01em; color: var(--ink); margin-bottom: 2px; }
.research-card-en { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 500; color: var(--muted); letter-spacing: 0.01em; margin-bottom: var(--sp-3); }
.research-card-summary { font-size: var(--text-sm); line-height: 1.6; color: var(--primary-mid); margin-bottom: var(--sp-4); }
.research-card-tags { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: auto; }
.tag { font-size: var(--text-xs); font-weight: 500; padding: 2px var(--sp-2); border-radius: var(--r-sm); letter-spacing: 0.01em; }
.research-group--ml .tag { background: var(--accent-ml-soft); color: var(--accent-ml); }
.research-group--vc .tag { background: var(--accent-vc-soft); color: var(--accent-vc); }
.research-card-arrow { position: absolute; right: var(--sp-5); bottom: var(--sp-5); width: 20px; height: 20px; color: var(--muted-light); transition: transform var(--duration) var(--ease), color var(--duration) var(--ease); }
.research-card:hover .research-card-arrow { transform: translateX(3px); }
.research-group--ml .research-card:hover .research-card-arrow { color: var(--accent-ml); }
.research-group--vc .research-card:hover .research-card-arrow { color: var(--accent-vc); }

/* RESEARCH DETAIL */
.research-detail { display: none; }
.research-detail.is-active { display: block; animation: fadeSlideIn 250ms var(--ease); }
@keyframes fadeSlideIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.research-overview.is-hidden { display: none; }
.research-back { display: inline-flex; align-items: center; gap: var(--sp-2); font-size: var(--text-sm); font-weight: 500; color: var(--muted); padding: var(--sp-2) var(--sp-3); border-radius: var(--r-md); margin-bottom: var(--sp-8); transition: color var(--duration) var(--ease), background var(--duration) var(--ease); }
.research-back:hover { color: var(--ink); background: rgba(26,39,68,0.04); }
.research-back svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; }
.detail-hero { padding: var(--sp-8); border-radius: var(--r-xl); margin-bottom: var(--sp-10); overflow: hidden; }
.detail-hero--ml { background: linear-gradient(135deg, #1a2744, #253656); }
.detail-hero--vc { background: linear-gradient(135deg, #0f2a3d, #1a3550); }
.detail-hero-title { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 600; letter-spacing: -0.01em; color: #fff; margin-bottom: var(--sp-1); }
.detail-hero-en { font-size: var(--text-sm); font-weight: 500; color: rgba(255,255,255,0.5); letter-spacing: 0.02em; margin-bottom: var(--sp-3); }
.detail-hero-keywords { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.detail-hero-keywords .tag { background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.8); }
.detail-nav { display: flex; gap: var(--sp-1); margin-bottom: var(--sp-10); overflow-x: auto; scrollbar-width: none; }
.detail-nav::-webkit-scrollbar { display: none; }
.detail-nav-item { font-size: var(--text-sm); font-weight: 500; color: var(--muted); padding: var(--sp-2) var(--sp-3); border-radius: var(--r-md); white-space: nowrap; transition: color var(--duration) var(--ease), background var(--duration) var(--ease); text-decoration: none; }
.detail-nav-item:hover { color: var(--ink); background: rgba(26,39,68,0.04); }
.detail-section { margin-bottom: var(--sp-12); }
.detail-section-header { display: flex; align-items: baseline; gap: var(--sp-3); margin-bottom: var(--sp-6); padding-bottom: var(--sp-3); border-bottom: 1px solid var(--line-light); }
.detail-section-index { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 600; color: var(--muted-light); letter-spacing: 0.02em; }
.detail-section-title { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 600; letter-spacing: -0.01em; color: var(--ink); }
.detail-copy { max-width: none; font-size: var(--text-base); line-height: 1.9; color: var(--primary-mid); }
.detail-copy p { text-wrap: pretty; }
.detail-copy p + p { margin-top: var(--sp-4); }
.topic-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: var(--sp-5); }
.topic-group { background: var(--bg); border-radius: var(--r-lg); padding: var(--sp-5); }
.topic-group-title { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 600; color: var(--ink); margin-bottom: var(--sp-3); letter-spacing: 0.01em; }
.topic-list { display: flex; flex-direction: column; gap: var(--sp-2); }
.topic-item { font-size: var(--text-sm); color: var(--primary-mid); padding-left: var(--sp-4); position: relative; line-height: 1.5; }
.topic-item::before { content: ''; position: absolute; left: 0; top: 0.6em; width: 4px; height: 4px; border-radius: 50%; background: var(--muted-light); }
.framework-placeholder { border: 2px dashed var(--line); border-radius: var(--r-lg); padding: var(--sp-16) var(--sp-8); text-align: center; background: var(--bg); }
.framework-placeholder-label { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 500; color: var(--muted-light); letter-spacing: 0.02em; }
.framework-placeholder-hint { font-size: var(--text-xs); color: var(--muted-light); margin-top: var(--sp-2); opacity: 0.7; }
.framework-figure { margin: 0; display: grid; gap: var(--sp-4); }
.framework-image { width: 100%; border-radius: var(--r-lg); border: 1px solid var(--line-light); background: #fff; padding: var(--sp-3); object-fit: contain; }
.framework-caption { font-size: var(--text-sm); line-height: 1.8; color: var(--primary-mid); }
.app-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: var(--sp-4); }
.app-card { background: var(--surface); border: 1px solid var(--line-light); border-radius: var(--r-lg); padding: var(--sp-5); }
.app-card-title { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 600; color: var(--ink); margin-bottom: var(--sp-2); }
.app-card-desc { font-size: var(--text-sm); color: var(--muted); line-height: 1.5; }

/* TABS */
.tab-strip { display: flex; gap: var(--sp-1); margin-bottom: var(--sp-8); border-bottom: 1px solid var(--line-light); }
.tab-btn { font-size: var(--text-sm); font-weight: 500; color: var(--muted); padding: var(--sp-3) var(--sp-5); border-bottom: 2px solid transparent; margin-bottom: -1px; transition: color var(--duration) var(--ease), border-color var(--duration) var(--ease); letter-spacing: 0.01em; }
.tab-btn:hover { color: var(--ink); }
.tab-btn.is-active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeSlideIn 200ms var(--ease); }

/* STUDENTS */
.students-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: var(--sp-3); }
.student-card { background: var(--surface); border: 1px solid var(--line-light); border-radius: var(--r-lg); padding: var(--sp-4); transition: border-color var(--duration) var(--ease); }
.student-card:hover { border-color: var(--line); }
.student-card-head { display: flex; align-items: flex-start; gap: var(--sp-2); margin-bottom: var(--sp-2); }
.student-name { font-weight: 600; font-size: 0.95rem; color: var(--ink); line-height: 1.25; }
.student-name a { color: var(--primary); transition: color var(--duration) var(--ease); }
.student-name a:hover { color: var(--accent-vc); }
.student-year { font-size: 0.72rem; color: var(--muted); margin-top: 2px; white-space: nowrap; }
.student-meta { font-size: 0.82rem; color: var(--muted); line-height: 1.55; }
.student-meta a { color: var(--primary); transition: color var(--duration) var(--ease); }
.student-meta a:hover { color: var(--accent-vc); }
.student-meta--placeholder { color: var(--muted-light); font-style: italic; }
.graduate-groups { display: flex; flex-direction: column; gap: var(--sp-8); }
.graduate-group-title { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 600; color: var(--ink); margin-bottom: var(--sp-4); padding-bottom: var(--sp-2); border-bottom: 1px solid var(--line-light); }
.graduate-list { display: flex; flex-wrap: wrap; gap: var(--sp-3); }
.graduate-item { display: inline-flex; align-items: center; gap: var(--sp-2); padding: var(--sp-2) var(--sp-4); background: var(--surface); border: 1px solid var(--line-light); border-radius: var(--r-pill); font-size: var(--text-sm); }
.graduate-name { font-weight: 500; color: var(--ink); }
.graduate-dest { color: var(--muted); font-size: var(--text-xs); }

/* PUBLICATIONS */
.paper-stack { display: flex; flex-direction: column; gap: var(--sp-6); }
.paper-row { display: grid; grid-template-columns: 240px 1fr; gap: var(--sp-6); background: var(--surface); border: 1px solid var(--line-light); border-radius: var(--r-lg); padding: var(--sp-5); align-items: stretch; }
.paper-figure { width: 100%; height: 100%; border-radius: var(--r-md); background: var(--bg); object-fit: contain; min-height: 180px; padding: var(--sp-2); }
.paper-row-body { display: flex; flex-direction: column; min-height: 100%; }
.paper-cite { font-size: var(--text-sm); line-height: 1.7; color: var(--ink); margin-bottom: var(--sp-3); }
.paper-cite strong, .compact-list strong { font-weight: 700; color: var(--ink); }
.paper-cite em, .compact-list em { font-style: italic; }
.paper-summary { font-size: var(--text-sm); line-height: 1.7; color: var(--muted); margin-bottom: var(--sp-3); }
.paper-links { display: flex; gap: var(--sp-3); margin-top: auto; padding-top: var(--sp-3); }
.paper-link { display: inline-flex; align-items: center; gap: var(--sp-1); font-size: var(--text-sm); font-weight: 500; color: var(--primary); padding: var(--sp-1) var(--sp-3); border: 1px solid var(--line); border-radius: var(--r-md); transition: color var(--duration) var(--ease), border-color var(--duration) var(--ease), background var(--duration) var(--ease); }
.paper-link:hover { color: var(--accent-vc); border-color: var(--accent-vc); background: var(--accent-vc-soft); }
.paper-link svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.paper-other-header { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 600; color: var(--ink); margin-top: var(--sp-10); margin-bottom: var(--sp-5); padding-top: var(--sp-8); border-top: 1px solid var(--line-light); }
.compact-list { display: flex; flex-direction: column; }
.compact-list li { font-size: var(--text-sm); line-height: 1.7; color: var(--primary-mid); padding: var(--sp-3) 0; border-bottom: 1px solid var(--line-light); }
.compact-list li:last-child { border-bottom: none; }
.patent-list { display: flex; flex-direction: column; border-top: 1px solid var(--line-light); }
.patent-row { display: grid; grid-template-columns: 1fr 280px 200px; gap: var(--sp-4); align-items: baseline; padding: var(--sp-3) 0; border-bottom: 1px solid var(--line-light); font-size: var(--text-sm); line-height: 1.7; }
.patent-title { color: var(--ink); }
.patent-number { color: var(--primary-mid); font-variant-numeric: tabular-nums; }
.patent-pub { color: var(--muted); font-variant-numeric: tabular-nums; }

/* CAROUSEL */
.carousel { position: relative; border-radius: var(--r-xl); overflow: hidden; background: var(--primary-deep); }
.carousel-viewport { overflow: hidden; }
.carousel-track { display: flex; transition: transform 300ms var(--ease); }
.carousel-slide { flex: 0 0 100%; position: relative; }
.carousel-slide img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
.carousel-caption { position: absolute; bottom: 0; left: 0; right: 0; padding: var(--sp-8) var(--sp-6) var(--sp-5); background: linear-gradient(to top, rgba(15,25,35,0.8) 0%, transparent 100%); }
.carousel-caption-title { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 600; color: #fff; }
.carousel-caption-date { font-size: var(--text-sm); color: rgba(255,255,255,0.6); margin-top: 2px; }
.carousel-controls { position: absolute; bottom: var(--sp-5); right: var(--sp-6); display: flex; align-items: center; gap: var(--sp-2); }
.carousel-btn { width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.15); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; color: #fff; transition: background var(--duration) var(--ease); }
.carousel-btn:hover { background: rgba(255,255,255,0.25); }
.carousel-btn:disabled { opacity: 0.3; cursor: default; }
.carousel-btn svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; }
.carousel-dots { display: flex; align-items: center; gap: var(--sp-2); margin: 0 var(--sp-2); }
.events-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-8); }
.event-panel .section-header { margin-bottom: var(--sp-6); }
.carousel-dot { width: 6px; height: 6px; border-radius: 50%; background: rgba(255,255,255,0.3); transition: background var(--duration) var(--ease), width var(--duration) var(--ease); cursor: pointer; }
.carousel-dot.is-active { background: #fff; width: 18px; border-radius: 3px; }

/* FOOTER */
.footer { background: var(--primary-deep); padding: var(--sp-16) 0 var(--sp-10); color: rgba(255,255,255,0.7); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: var(--sp-12); align-items: start; }
.footer-qr-group { display: flex; align-items: flex-start; gap: var(--sp-6); }
.footer-name { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 600; color: rgba(255,255,255,0.9); margin-bottom: var(--sp-1); }
.footer-name-en { font-size: var(--text-sm); color: rgba(255,255,255,0.4); letter-spacing: 0.02em; margin-bottom: var(--sp-5); }
.footer-info { font-size: var(--text-sm); line-height: 1.8; color: rgba(255,255,255,0.5); }
.footer-info a { color: rgba(255,255,255,0.75); text-decoration: underline; text-underline-offset: 2px; transition: color var(--duration) var(--ease); }
.footer-info a:hover { color: #fff; }
.footer-qr { text-align: center; }
.footer-qr img { width: 120px; height: 120px; border-radius: var(--r-md); background: #fff; padding: var(--sp-2); }
.footer-qr-label { font-size: var(--text-xs); color: rgba(255,255,255,0.4); margin-top: var(--sp-2); }
.footer-bottom { margin-top: var(--sp-10); padding-top: var(--sp-6); border-top: 1px solid rgba(255,255,255,0.08); font-size: var(--text-xs); color: rgba(255,255,255,0.25); text-align: center; }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .faculty-grid { grid-template-columns: repeat(2,1fr); }
  .research-layout { grid-template-columns: 1fr; gap: var(--sp-8); }
  .students-grid { grid-template-columns: repeat(3,1fr); }
  .paper-row { grid-template-columns: 180px 1fr; }
  .hero-logos { gap: var(--sp-4); }
  .hero-logo-seal { height: 52px; }
  .hero-logo-word { height: 64px; }
  .hero-logo-mlvc { height: 52px; }
}
@media (max-width: 840px) {
  .students-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 640px) {
  :root { --sp-20: 3.5rem; --sp-16: 3rem; --sp-12: 2.5rem; --sp-10: 2rem; }
  .section-title { font-size: var(--text-2xl); }
  .hero-content { padding: var(--sp-6) 0; }
  .hero-title { font-size: clamp(1.8rem, 7vw, 2.4rem); }
  .hero-logos { gap: var(--sp-2); top: calc(var(--nav-h) + var(--sp-2)); left: var(--sp-3); }
  .hero-logo-seal { height: 36px; }
  .hero-logo-word { height: 36px; }
  .hero-logo-mlvc { height: 32px; }
  .faculty-grid { grid-template-columns: 1fr; }
  .students-grid { grid-template-columns: 1fr; }
  .paper-row { grid-template-columns: 1fr; gap: var(--sp-4); }
  .paper-figure { max-height: 180px; min-height: 160px; }
  .patent-row { grid-template-columns: 1fr; gap: var(--sp-1); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--sp-8); }
  .footer-qr-group { justify-content: flex-start; }
  .events-grid { grid-template-columns: 1fr; }
  .footer-qr { text-align: left; }
  .detail-hero { padding: var(--sp-6); }
  .detail-hero-title { font-size: var(--text-xl); }
  .topic-grid { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: 1fr; }
}