:root{
  --bg:#0a0e1a;
  --bg2:#0f1a30;
  --primary:#0055A3;
  --primary2:#1E88E5;
  --gold:#D4AF37;
  --gold2:#F4D078;
  --white:#F5F0EB;
  --grey:#8b95a8;
  --glass:rgba(255,255,255,.05);
  --glass-border:rgba(255,255,255,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{
  font-family:'PingFang SC','Microsoft YaHei','Source Han Sans CN','Inter',sans-serif;
  background:var(--bg);
  color:var(--white);
  overflow-x:hidden;
  line-height:1.7;
  touch-action:manipulation;
  -webkit-text-size-adjust:100%;
}
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--primary),var(--gold));border-radius:4px}
body::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#0055A3,#D4AF37)}

.credit-bar{
  position:fixed;top:0;left:0;width:100%;z-index:200;
  background:linear-gradient(90deg,rgba(212,175,55,.15),rgba(0,85,163,.15));
  border-bottom:1px solid rgba(212,175,55,.2);
  padding:6px 5vw;text-align:center;
  font-size:12px;color:rgba(245,240,235,.6);letter-spacing:1px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.credit-bar .credit-name{color:var(--gold);font-weight:600}

/* Navigation */
.nav{
  position:fixed;top:32px;left:0;width:100%;z-index:100;
  padding:18px 5vw;display:flex;justify-content:space-between;align-items:center;
  background:rgba(10,14,26,.3);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .4s ease,padding .4s ease;
}
.nav.solid{background:rgba(10,14,26,.92);padding:12px 5vw}
.nav-logo{
  display:flex;align-items:center;gap:10px;
  font-weight:700;font-size:15px;letter-spacing:1.5px;
}
.logo-badge{
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--gold));
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;color:#fff;
  box-shadow:0 0 20px rgba(212,175,55,.4);
}
.nav-links{display:flex;gap:36px;align-items:center;list-style:none}
.nav-links a{
  color:var(--white);text-decoration:none;font-size:14px;
  opacity:.8;transition:opacity .3s,color .3s;
  position:relative;padding:6px 0;
}
.nav-links a:hover{opacity:1;color:var(--gold2)}
.nav-links a::after{
  content:'';position:absolute;bottom:0;left:0;width:0;height:1px;
  background:var(--gold);transition:width .3s ease;
}
.nav-links a:hover::after{width:100%}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:24px;cursor:pointer}

/* Hero */
.hero{
  position:relative;height:100vh;width:100%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;overflow:hidden;
}
.hero-canvas{
  position:absolute;top:0;left:0;width:100%;height:100%;z-index:1;
}
.hero-vignette{
  position:absolute;inset:0;z-index:2;pointer-events:none;
  background:radial-gradient(ellipse at center,transparent 0%,transparent 40%,var(--bg) 100%);
}
.hero-content{
  position:relative;z-index:3;
  padding:0 20px;
  animation:heroIn 2s cubic-bezier(.2,.8,.2,1);
}
@keyframes heroIn{from{opacity:0;transform:translateY(60px)}to{opacity:1;transform:translateY(0)}}
.hero-tag{
  display:inline-block;padding:6px 18px;
  border:1px solid var(--gold);border-radius:30px;
  color:var(--gold2);font-size:13px;letter-spacing:3px;
  margin-bottom:30px;background:rgba(212,175,55,.08);
}
.hero h1{
  font-size:clamp(40px,9vw,120px);font-weight:800;letter-spacing:6px;
  background:linear-gradient(135deg,#fff 0%,var(--gold2) 50%,var(--primary2) 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  text-shadow:0 0 80px rgba(0,85,163,.4);
  margin-bottom:24px;line-height:1.1;
}
.hero-sub{
  font-size:clamp(18px,3vw,28px);color:rgba(255,255,255,.85);
  letter-spacing:8px;margin-bottom:14px;
}
.hero-motto{
  font-size:clamp(14px,2vw,18px);color:var(--gold2);
  letter-spacing:18px;font-weight:300;opacity:.9;
}
.scroll-cue{
  position:absolute;bottom:36px;left:50%;transform:translateX(-50%);
  width:30px;height:48px;border:2px solid rgba(255,255,255,.4);border-radius:15px;
  z-index:3;
}
.scroll-cue::before{
  content:'';position:absolute;top:8px;left:50%;transform:translateX(-50%);
  width:4px;height:8px;background:var(--gold);border-radius:2px;
  animation:scrollDot 1.6s infinite;
}
@keyframes scrollDot{0%{transform:translate(-50%,0);opacity:1}100%{transform:translate(-50%,20px);opacity:0}}

/* Sections */
.section{
  position:relative;min-height:100vh;padding:120px 8vw;
  display:flex;flex-direction:column;justify-content:center;
}
.section-eyebrow{
  display:inline-block;align-self:flex-start;
  color:var(--gold);font-size:13px;letter-spacing:4px;
  margin-bottom:18px;text-transform:uppercase;
}
.section-eyebrow::before{
  content:'01 / ';color:rgba(212,175,55,.4);
}
.section-title{
  font-size:clamp(32px,5.5vw,72px);font-weight:700;
  letter-spacing:2px;margin-bottom:30px;line-height:1.15;
}
.section-title .accent{
  background:linear-gradient(90deg,var(--gold),var(--gold2));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.section-desc{
  font-size:16px;color:rgba(245,240,235,.7);max-width:680px;
  margin-bottom:50px;
}
.section.two .section-eyebrow::before{content:'02 / '}
.section.three .section-eyebrow::before{content:'03 / '}
.section.four .section-eyebrow::before{content:'04 / '}

/* Glass cards grid */
.cards{
  display:grid;gap:24px;width:100%;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
}
.card{
  position:relative;padding:30px;
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-radius:16px;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:transform .35s cubic-bezier(.2,.8,.2,1),border-color .35s;
  overflow:hidden;
}
.card::before{
  content:'';position:absolute;inset:0;border-radius:16px;
  background:linear-gradient(135deg,rgba(0,85,163,.4) 0%,transparent 60%);
  opacity:0;transition:opacity .4s;pointer-events:none;
}
.card:hover{
  transform:translateY(-6px);
  border-color:var(--gold);
}
.card:hover::before{opacity:1}
.card h3{
  font-size:20px;margin-bottom:10px;color:var(--white);
  letter-spacing:1px;
}
.card p{font-size:14px;color:rgba(255,255,255,.7)}
.card ul{list-style:none;margin-top:12px;font-size:13px;color:rgba(255,255,255,.75)}
.card ul li{padding:5px 0;border-bottom:1px dashed rgba(255,255,255,.06)}
.card ul li::before{content:'·';color:var(--gold);margin-right:8px}
.card ul li:last-child{border-bottom:none}
.card-img{width:100%;height:140px;object-fit:cover;border-radius:12px;margin-bottom:16px;border:1px solid rgba(255,255,255,.06)}
/* Info card - text-only card with accent border */
.info-card{
  position:relative;padding:22px 24px 22px 28px;
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-left:4px solid var(--accent,#D4AF37);
  border-radius:12px;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:transform .35s cubic-bezier(.2,.8,.2,1),border-color .35s;
  cursor:pointer;
  display:block;text-decoration:none;color:inherit;
}
.info-card:hover{
  transform:translateY(-4px);
  border-color:var(--accent,#D4AF37);
}
.info-card h3{
  font-size:18px;margin-bottom:6px;color:var(--white);
  letter-spacing:1px;
}
.info-card p{font-size:13px;color:rgba(255,255,255,.7);margin-bottom:0}
.info-card ul{list-style:none;margin-top:10px;font-size:13px;color:rgba(255,255,255,.75)}
.info-card ul li{padding:4px 0}
.info-card-extra{font-size:12px;color:var(--grey);margin-top:8px;display:flex;gap:8px;flex-wrap:wrap}
.info-card .tag{
  display:inline-block;padding:2px 10px;border-radius:20px;
  font-size:11px;background:rgba(255,255,255,.08);color:rgba(255,255,255,.7);
}
.info-grid{
  display:grid;gap:14px;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  margin-top:16px;
}
[data-jump]{cursor:pointer;transition:transform .3s, box-shadow .3s; text-decoration:none; color:inherit}
[data-jump]:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.card .food-gallery{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.card .food-gallery img{width:60px;height:60px;object-fit:cover;border-radius:8px;border:1px solid rgba(255,255,255,.1);transition:transform .3s}
.card .food-gallery img:hover{transform:scale(1.8);z-index:10;border-color:var(--gold);box-shadow:0 4px 20px rgba(0,0,0,.5)}

/* Section divider (clip-path) */
.divider-flow{
  height:120px;width:100%;
  background:linear-gradient(180deg,transparent,var(--bg2) 50%,transparent);
  clip-path:polygon(0 50%,100% 0%,100% 100%,0 100%);
}

/* Timeline (入学准备) */
.timeline{
  position:relative;padding:0 20px;margin-top:20px;
}
.timeline::before{
  content:'';position:absolute;left:30px;top:0;bottom:0;
  width:2px;background:linear-gradient(180deg,var(--primary),var(--gold));
}
.timeline-item{
  position:relative;padding:0 0 40px 70px;
  opacity:0;transform:translateY(30px);
  transition:opacity .8s ease,transform .8s ease;
}
.timeline-item.in{opacity:1;transform:translateY(0)}
.timeline-item::before{
  content:'';position:absolute;left:20px;top:8px;
  width:22px;height:22px;border-radius:50%;
  background:var(--bg);
  border:3px solid var(--gold);
  box-shadow:0 0 16px var(--gold);
}
.timeline-step{
  display:inline-block;padding:3px 12px;
  background:rgba(212,175,55,.15);color:var(--gold);
  border-radius:14px;font-size:12px;letter-spacing:1px;
  margin-bottom:8px;
}
.timeline-item h4{
  font-size:18px;color:var(--white);margin-bottom:6px;
}
.timeline-item p{font-size:14px;color:rgba(255,255,255,.65)}
.timeline-item .checklist{
  list-style:none;margin-top:10px;font-size:13px;
}
.timeline-item .checklist li{
  padding:4px 0;color:rgba(255,255,255,.75);
}
.timeline-item .checklist li::before{
  content:'';display:inline-block;width:14px;height:14px;
  margin-right:8px;border:1.5px solid var(--gold);border-radius:3px;
  vertical-align:middle;
}

/* Timeline items with links */
.timeline-link{display:block;text-decoration:none;color:inherit;cursor:pointer;border-radius:12px;transition:transform .3s,background .3s}
.timeline-link:hover{transform:translateX(4px);background:rgba(255,255,255,.02)}
.timeline-link .card-link-text{opacity:1;transform:none;display:inline-block}
.timeline-item.timeline-static{cursor:default}
.timeline-item.timeline-static:hover{transform:none;background:transparent}
@media(max-width:768px){
  .timeline-link:hover{transform:none}
}

/* Grid (社团) */
.grid-items{
  display:grid;gap:18px;
  grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
}
.grid-card{
  padding:22px;
  background:linear-gradient(160deg,rgba(0,85,163,.12),rgba(212,175,55,.04));
  border:1px solid rgba(255,255,255,.08);
  border-radius:14px;
  transition:transform .3s,box-shadow .3s;
  cursor:default;
}
.grid-card:hover{
  transform:scale(1.03);
  box-shadow:0 8px 28px rgba(0,85,163,.25);
}
.grid-card h4{
  color:var(--gold2);font-size:15px;letter-spacing:1px;
  margin-bottom:8px;font-weight:600;
}
.grid-card p{font-size:13px;color:rgba(255,255,255,.6)}
.grid-card.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.grid-card .tag{
  padding:3px 10px;background:rgba(255,255,255,.08);
  border-radius:10px;font-size:11px;color:rgba(255,255,255,.7);
}

/* Footer */
footer{
  padding:80px 8vw 40px;text-align:center;
  background:linear-gradient(180deg,transparent,rgba(0,85,163,.15));
  border-top:1px solid rgba(212,175,55,.2);
}
footer .motto-big{
  font-size:clamp(28px,4vw,52px);font-weight:300;
  letter-spacing:20px;color:var(--gold2);
  margin-bottom:24px;text-indent:20px;
}
footer .contact{font-size:13px;color:rgba(255,255,255,.5);margin-bottom:20px;line-height:2}
footer .contact a{color:var(--gold2);text-decoration:none}
footer .copy{
  font-size:11px;color:rgba(255,255,255,.3);
  border-top:1px dashed rgba(255,255,255,.1);
  padding-top:24px;margin-top:30px;
}
footer .welcome{
  font-size:14px;color:rgba(212,175,55,.8);
  margin-bottom:16px;letter-spacing:2px;
}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(40px);transition:opacity 1s ease,transform 1s ease}
.reveal.in{opacity:1;transform:translateY(0)}
.reveal-stagger > *{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease}
.reveal-stagger.in > *{opacity:1;transform:translateY(0)}
.reveal-stagger.in > *:nth-child(2){transition-delay:.1s}
.reveal-stagger.in > *:nth-child(3){transition-delay:.2s}
.reveal-stagger.in > *:nth-child(4){transition-delay:.3s}
.reveal-stagger.in > *:nth-child(5){transition-delay:.4s}

/* Clickable card styles */
.card-link, .grid-card-link{
  text-decoration:none;color:inherit;display:block;
  position:relative;
}
.card-link:hover, .grid-card-link:hover{
  transform:translateY(-8px);
  border-color:var(--gold2);
  box-shadow:0 12px 40px rgba(212,175,55,.2);
}
.card-link-text{
  display:inline-block;margin-top:14px;
  color:var(--gold2);font-size:13px;letter-spacing:1px;
  opacity:1;transform:translateX(0);
  transition:opacity .3s,transform .3s;
}

/* Non-clickable card variant */
.card-static{cursor:default}
.card-static:hover{transform:none!important;border-color:var(--glass-border)!important}
.card-static::before{display:none!important}
.card-static .card-link-text{display:none}

/* Grid card link text always visible */
.grid-card-link .card-link-text{
  opacity:1;transform:none;
}
.grid-card-link:hover .card-link-text{
  color:#fff;
}
.grid-card-link{text-decoration:none;color:inherit;display:block}
.grid-card-link:hover{
  transform:scale(1.05);
  box-shadow:0 12px 36px rgba(0,85,163,.3);
  border-color:var(--gold);
}

/* ===== Mobile Responsive ===== */
@media (max-width:768px){
  /* Navigation */
  .nav{padding:14px 16px}
  .nav.solid{padding:10px 16px}
  .nav-logo{font-size:13px;gap:8px}
  .nav-logo img{width:28px;height:28px}
  .nav-links{
    display:none;flex-direction:column;width:100%;
    position:absolute;top:100%;left:0;
    background:rgba(10,14,26,.96);
    padding:16px 20px;gap:0;
    border-bottom:1px solid var(--glass-border);
    backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  }
  .nav-links.open{display:flex}
  .nav-links li{border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-links li:last-child{border-bottom:none}
  .nav-links a{
    display:block;padding:14px 0;font-size:15px;
    opacity:.9;letter-spacing:1px;
  }
  .nav-links a:hover{color:var(--gold2)}
  .menu-toggle{display:block;font-size:26px;padding:4px}

  /* Hero */
  .hero{min-height:100svh;min-height:100vh}
  .hero-content{padding:0 16px}
  .hero-tag{font-size:11px;letter-spacing:2px;padding:5px 14px;margin-bottom:20px}
  .hero h1{font-size:clamp(32px,12vw,60px);letter-spacing:4px;margin-bottom:16px}
  .hero-sub{font-size:clamp(16px,5vw,24px);letter-spacing:4px;margin-bottom:10px}
  .hero-motto{font-size:clamp(12px,3.5vw,16px);letter-spacing:8px}
  .hero-content img{width:90px!important;height:90px!important}
  .scroll-cue{bottom:20px}

  /* Sections */
  .section{padding:70px 16px;min-height:auto}
  .section-eyebrow{font-size:11px;letter-spacing:3px;margin-bottom:12px}
  .section-title{font-size:clamp(24px,8vw,40px);letter-spacing:1px;margin-bottom:18px}
  .section-desc{font-size:14px;margin-bottom:30px;line-height:1.8}

  /* Cards */
  .cards{grid-template-columns:1fr;gap:16px}
  .card{padding:20px;border-radius:14px}
.card h3{font-size:17px;margin-bottom:8px}
  .card p{font-size:13px;line-height:1.7}
  .card ul{font-size:12px;margin-top:10px}
  .card ul li{padding:4px 0}
  .card-img{height:130px;border-radius:10px;margin-bottom:12px}
  /* Show link text on mobile (no hover) */
  .card-link-text{
    opacity:1!important;transform:none!important;
    font-size:12px;margin-top:10px;
  }
  .info-card{padding:16px 18px 16px 22px}
  .info-card h3{font-size:16px}
  .info-card ul{font-size:12px}

  /* Timeline */
  .timeline{padding:0 10px}
  .timeline::before{left:20px}
  .timeline-item{padding:0 0 30px 50px}
  .timeline-item::before{left:12px;width:18px;height:18px}
  .timeline-step{font-size:11px;padding:2px 10px}
  .timeline-item h4{font-size:16px}
  .timeline-item p{font-size:13px;line-height:1.7}
  .timeline-item .checklist{font-size:12px}

  /* Grid */
  .grid-items{grid-template-columns:1fr;gap:12px}
  .grid-card{padding:16px;border-radius:12px}
  .grid-card h4{font-size:14px;margin-bottom:6px}
  .grid-card p{font-size:12px;line-height:1.7}
  .grid-card .tag{font-size:10px;padding:2px 8px}

  /* Section titles with sub-heading */
  .section h3[style*="font-size:24px"]{
    font-size:18px!important;margin-bottom:14px;
  }

  /* Footer */
  footer{padding:50px 16px 30px}
  footer .motto-big{
    font-size:clamp(22px,7vw,36px);letter-spacing:10px;
    margin-bottom:16px;text-indent:10px;
  }
  footer .contact{font-size:12px;line-height:2.2}
  footer .copy{font-size:10px;padding-top:16px;margin-top:20px}
  footer .welcome{font-size:13px;letter-spacing:1px}

  /* Divider */
  .divider-flow{height:60px}

  /* Touch-friendly: disable hover transforms, use active instead */
  .card-link:hover, .card:hover,
  .grid-card:hover, .grid-card-link:hover{
    transform:none!important;
    box-shadow:none!important;
  }
  .card-link:active, .card:active{
    transform:scale(.98)!important;
    background:rgba(255,255,255,.08);
  }
  .grid-card:active{transform:scale(.97)!important;background:rgba(255,255,255,.06)}

  /* Prevent text selection on interactive elements */
  .card-link, .grid-card-link{-webkit-tap-highlight-color:transparent}
}

/* Very small screens (iPhone SE, etc.) */
@media (max-width:380px){
  .hero h1{font-size:28px;letter-spacing:2px}
  .hero-sub{font-size:14px;letter-spacing:3px}
  .hero-tag{font-size:10px;padding:4px 10px}
  .section-title{font-size:22px}
  .card{padding:16px}
  .card h3{font-size:15px}
  .nav-logo span{font-size:12px}
}

/* Landscape mobile */
@media (max-width:768px) and (orientation:landscape){
  .hero{min-height:auto;padding:60px 16px}
  .hero-content img{width:60px!important;height:60px!important}
}

/* Star sprinkle */
.stars{
  position:fixed;top:0;left:0;width:100%;height:100%;
  pointer-events:none;z-index:0;
}
.star{
  position:absolute;width:2px;height:2px;background:#fff;
  border-radius:50%;opacity:0;
  animation:twinkle 4s infinite;
}
@keyframes twinkle{0%,100%{opacity:0}50%{opacity:.6}}

/* ===== Bottom Tab Bar (GitHub-style) ===== */
.bottom-tab-bar{
  display:none;position:fixed;bottom:0;left:0;width:100%;
  z-index:200;
  background:rgba(10,14,26,.92);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border-top:1px solid rgba(255,255,255,.08);
  padding:6px 0 calc(6px + env(safe-area-inset-bottom,0px));
  transition:transform .35s cubic-bezier(.4,0,.2,1);
}
@media(max-width:768px){
  .bottom-tab-bar{display:flex;justify-content:space-around;align-items:center}
}
.btab{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:6px 12px;border-radius:12px;cursor:pointer;
  color:var(--grey);transition:color .25s,transform .15s;
  -webkit-tap-highlight-color:transparent;user-select:none;
  min-width:60px;
}
.btab:active{transform:scale(.88)}
.btab.active{color:var(--gold2)}
.btab-icon{width:22px;height:22px;stroke-width:1.8}
.btab span{font-size:10px;letter-spacing:.5px;font-weight:500}

/* ===== Mobile FAB (Floating Action Button) ===== */
.mobile-fab{
  display:none;position:fixed;bottom:80px;right:20px;
  z-index:190;width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary2));
  border:none;color:#fff;font-size:22px;font-weight:300;
  box-shadow:0 6px 28px rgba(0,85,163,.5),0 2px 8px rgba(0,0,0,.3);
  cursor:pointer;
  transition:transform .3s cubic-bezier(.4,0,.2,1),opacity .3s,box-shadow .3s;
  -webkit-tap-highlight-color:transparent;
}
.mobile-fab:active{transform:scale(.9)}
.mobile-fab.open{
  background:rgba(255,255,255,.15);
  box-shadow:0 4px 16px rgba(0,0,0,.3);
}
.fab-icon{display:flex;align-items:center;justify-content:center;transition:transform .3s}
.mobile-fab.open .fab-icon{transform:rotate(135deg)}
@media(max-width:768px){
  .mobile-fab{display:flex;align-items:center;justify-content:center}
}

/* FAB Menu (radial expansion) */
.mobile-fab-menu{
  display:none;position:fixed;bottom:140px;right:16px;
  z-index:189;pointer-events:none;
}
@media(max-width:768px){
  .mobile-fab-menu{display:block}
}
.mobile-fab-menu.open{pointer-events:auto}
.fab-item{
  position:absolute;right:0;
  display:flex;align-items:center;gap:8px;
  background:rgba(10,14,26,.9);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:28px;padding:10px 16px 10px 12px;
  white-space:nowrap;font-size:13px;color:var(--white);
  opacity:0;transform:translateY(20px) scale(.8);
  transition:all .3s cubic-bezier(.4,0,.2,1);
  cursor:pointer;-webkit-tap-highlight-color:transparent;
}
.fab-item:active{background:rgba(255,255,255,.12)}
.fab-item svg{flex-shrink:0;color:var(--gold2)}
.mobile-fab-menu.open .fab-item{opacity:1;transform:translateY(0) scale(1)}
.mobile-fab-menu.open .fab-item:nth-child(1){transition-delay:.04s}
.mobile-fab-menu.open .fab-item:nth-child(2){transition-delay:.08s}
.mobile-fab-menu.open .fab-item:nth-child(3){transition-delay:.12s}
.mobile-fab-menu.open .fab-item:nth-child(4){transition-delay:.16s}
.mobile-fab-menu.open .fab-item:nth-child(5){transition-delay:.20s}
.fab-item:nth-child(1){bottom:0;right:0}
.fab-item:nth-child(2){bottom:52px;right:-4px}
.fab-item:nth-child(3){bottom:104px;right:-8px}
.fab-item:nth-child(4){bottom:156px;right:-4px}
.fab-item:nth-child(5){bottom:208px;right:0}

/* ===== Card Expand (GitHub-style detail view) ===== */
@media(max-width:768px){
  .card.card-link.expanded{
    z-index:10;
    border-color:var(--gold);
    box-shadow:0 16px 48px rgba(0,0,0,.4),0 0 0 1px rgba(212,175,55,.3);
  }
  .card.card-link.expanded .card-link-text{
    opacity:1;transform:none;
  }
  .card.card-link.expanded::after{
    content:'收起 ▲';display:block;text-align:center;
    margin-top:12px;padding-top:12px;
    border-top:1px solid rgba(255,255,255,.08);
    font-size:12px;color:var(--grey);letter-spacing:1px;
  }
}

/* ===== Touch Ripple ===== */
@keyframes rippleAnim{
  0%{transform:scale(0);opacity:1}
  100%{transform:scale(2.5);opacity:0}
}

/* ===== Mobile Enhanced Animations ===== */
@media(max-width:768px){
  /* Staggered card entrance */
  .reveal-stagger.in > *{
    animation:cardSlideUp .5s cubic-bezier(.4,0,.2,1) forwards;
    opacity:0;
  }
  .reveal-stagger.in > *:nth-child(1){animation-delay:.05s}
  .reveal-stagger.in > *:nth-child(2){animation-delay:.12s}
  .reveal-stagger.in > *:nth-child(3){animation-delay:.19s}
  .reveal-stagger.in > *:nth-child(4){animation-delay:.26s}
  .reveal-stagger.in > *:nth-child(5){animation-delay:.33s}
  .reveal-stagger.in > *:nth-child(6){animation-delay:.40s}
  @keyframes cardSlideUp{
    from{opacity:0;transform:translateY(24px)}
    to{opacity:1;transform:translateY(0)}
  }

  /* Hero emblem pulse */
  .hero-content img{
    animation:emblemPulse 3s ease-in-out infinite;
  }
  @keyframes emblemPulse{
    0%,100%{box-shadow:0 0 30px rgba(212,175,55,.3)}
    50%{box-shadow:0 0 50px rgba(212,175,55,.6)}
  }

  /* Section entrance */
  .section-title{
    animation:sectionFadeIn .8s cubic-bezier(.4,0,.2,1) forwards;
    animation-play-state:paused;
  }
  .section.in .section-title{animation-play-state:running}
  @keyframes sectionFadeIn{
    from{opacity:0;transform:translateY(20px)}
    to{opacity:1;transform:translateY(0)}
  }
}

/* ===== 滚动进度条 ===== */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:300;
  background:linear-gradient(90deg,var(--primary),var(--gold));box-shadow:0 0 10px rgba(212,175,55,.6)}

/* ===== Hero 轮播标语 ===== */
.hero-taglines{margin-top:22px;height:24px;position:relative;overflow:hidden}
.hero-taglines .ht{position:absolute;left:0;right:0;color:var(--gold2);font-size:clamp(13px,2.2vw,17px);
  letter-spacing:2px;opacity:0;transform:translateY(12px);transition:opacity .6s,transform .6s}
.hero-taglines .ht.active{opacity:1;transform:translateY(0)}

/* ===== Hero 浮动装饰 ===== */
.float-deco{position:absolute;z-index:2;pointer-events:none;opacity:.45;font-size:26px;animation:floatY 6s ease-in-out infinite}
@keyframes floatY{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-18px) rotate(8deg)}}

/* ===== 数据看板（计数动画） ===== */
.stats-band{position:relative;z-index:3;display:flex;flex-wrap:wrap;justify-content:center;gap:14px;
  padding:40px 6vw;border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06);
  background:linear-gradient(180deg,transparent,rgba(0,85,163,.06))}
.stat{text-align:center;min-width:120px;padding:10px 18px;border-radius:14px;background:var(--glass);
  border:1px solid var(--glass-border);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.stat .num{font-size:clamp(28px,5vw,44px);font-weight:800;
  background:linear-gradient(135deg,var(--gold2),var(--primary2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat .lbl{font-size:12px;color:rgba(245,240,235,.6);letter-spacing:1px;margin-top:4px}

/* ===== 卡片 3D 倾斜（仅桌面） ===== */
@media(min-width:769px){
  .card.card-link{transform-style:preserve-3d;will-change:transform}
  .card.card-link .card-link-text{transform:translateZ(24px)}
}

/* ===== 校徽彩蛋 ===== */
.badge-pop{animation:badgePop .6s ease}
@keyframes badgePop{0%{transform:scale(1)}30%{transform:scale(1.15) rotate(-6deg)}60%{transform:scale(.95) rotate(4deg)}100%{transform:scale(1)}}

/* ===== BGM 播放器 ===== */
.music-player{position:fixed;left:20px;bottom:calc(80px + env(safe-area-inset-bottom,0px));z-index:196;
  display:flex;align-items:center;gap:10px;padding:8px 14px 8px 8px;border-radius:40px;cursor:grab;touch-action:none;user-select:none;
  background:rgba(10,14,26,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(212,175,55,.35);box-shadow:0 6px 24px rgba(0,0,0,.4);color:var(--white);
  max-width:min(80vw,320px);transition:transform .3s,box-shadow .3s;-webkit-tap-highlight-color:transparent}
.music-player:hover{box-shadow:0 8px 30px rgba(212,175,55,.3)}
.music-player .mp-btn{width:40px;height:40px;flex-shrink:0;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--primary),var(--gold));color:#fff;font-size:15px;
  display:flex;align-items:center;justify-content:center;box-shadow:0 0 16px rgba(212,175,55,.4)}
.music-player .mp-meta{overflow:hidden;white-space:nowrap}
.music-player .mp-title{font-size:13px;font-weight:600;letter-spacing:.5px;overflow:hidden;text-overflow:ellipsis}
.music-player .mp-sub{font-size:11px;color:rgba(245,240,235,.5)}
.music-player .eq{display:flex;align-items:flex-end;gap:2px;height:16px;margin-left:6px}
.music-player .eq span{width:3px;height:4px;background:var(--gold2);border-radius:2px;
  animation:eqBounce .8s ease-in-out infinite;animation-play-state:paused}
.music-player.playing .eq span{animation-play-state:running}
.music-player .eq span:nth-child(2){animation-delay:.2s}
.music-player .eq span:nth-child(3){animation-delay:.4s}
.music-player .eq span:nth-child(4){animation-delay:.1s}
@keyframes eqBounce{0%,100%{height:4px}50%{height:16px}}

/* ===== 全局移动端加固 ===== */
img{max-width:100%}

/* ===== 移动端：播放器避让底部 Tab ===== */
@media(max-width:768px){
  .music-player{bottom:calc(78px + env(safe-area-inset-bottom,0px))}
  .hero-taglines{height:22px}
  .stats-band{padding:30px 5vw;gap:10px}
  .stat{min-width:104px;padding:8px 12px}
}


/* ===== 校区切换 ===== */
.campus-tabs{display:flex;gap:10px;justify-content:center;margin:6px 0 26px;flex-wrap:wrap}
.campus-tab{appearance:none;border:1px solid var(--glass-border);background:var(--glass);color:var(--white);
  padding:10px 24px;border-radius:30px;cursor:pointer;font-size:15px;letter-spacing:1px;transition:.25s;-webkit-tap-highlight-color:transparent}
.campus-tab.active{background:linear-gradient(135deg,var(--primary),var(--gold));color:#fff;border-color:transparent;box-shadow:0 4px 18px rgba(212,175,55,.35)}
.campus-panel{display:none}
.campus-panel.active{display:block;animation:fadeUp .5s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}

/* ===== 互动玩法 ===== */
.fun-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:30px}
@media(max-width:768px){.fun-grid{grid-template-columns:1fr}}
.panel-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:18px;padding:26px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.panel-card h3{font-size:20px;color:var(--gold2);margin-bottom:6px;letter-spacing:1px}
.panel-card .hint{font-size:13px;color:rgba(245,240,235,.55);margin-bottom:18px}

/* 抽卡 */
.gacha-btn{width:100%;padding:14px;border:none;border-radius:12px;cursor:pointer;font-size:16px;letter-spacing:2px;
  background:linear-gradient(135deg,var(--primary),var(--gold));color:#fff;font-weight:700;box-shadow:0 6px 20px rgba(212,175,55,.3);transition:.2s}
.gacha-btn:active{transform:scale(.97)}
.fortune-result{margin-top:18px;text-align:center;display:none}
.fortune-result.show{display:block;animation:fadeUp .5s ease}
.fortune-level{font-size:32px;font-weight:800;background:linear-gradient(135deg,var(--gold2),var(--primary2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.fortune-title{font-size:19px;margin:6px 0;color:var(--white)}
.fortune-yi{font-size:14px;color:rgba(245,240,235,.82);line-height:1.9}
.fortune-yi b{color:var(--gold2)}
.fortune-day{font-size:12px;color:rgba(245,240,235,.45);margin-top:8px}
.fortune-count{font-size:12px;color:rgba(245,240,235,.5);margin-top:10px;min-height:16px}

/* 通用游戏按钮 */
.game-btn{width:100%;padding:13px;border:none;border-radius:12px;cursor:pointer;font-size:15px;letter-spacing:1px;
  background:linear-gradient(135deg,var(--primary),var(--gold));color:#fff;font-weight:700;box-shadow:0 6px 20px rgba(212,175,55,.3);transition:.2s;margin-top:14px}
.game-btn:active{transform:scale(.97)}
.game-btn.ghost{background:transparent;border:1px solid var(--glass-border);color:var(--white);box-shadow:none;font-weight:600}

/* 今天吃什么 */
.eat-wheel{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;justify-content:center}
.eat-item{font-size:13px;padding:7px 12px;border-radius:20px;background:rgba(255,255,255,.06);border:1px solid var(--glass-border);color:rgba(245,240,235,.8);transition:.25s}
.eat-item.hit{background:linear-gradient(135deg,var(--gold2),var(--primary2));color:#0a0e1a;font-weight:700;border-color:transparent;transform:scale(1.12);box-shadow:0 6px 18px rgba(212,175,55,.45)}
.eat-item.pop{animation:eatPop .4s ease}
@keyframes eatPop{0%{transform:scale(1)}50%{transform:scale(1.25)}100%{transform:scale(1.12)}}
.eat-result{margin-top:14px;text-align:center;font-size:15px;color:var(--white);min-height:22px;line-height:1.6}
.eat-result b{color:var(--gold2)}

/* 测验/测试通用 */
.quiz-box{margin-top:4px}
.quiz-progress{display:flex;gap:6px;margin-bottom:14px}
.quiz-progress i{flex:1;height:4px;border-radius:4px;background:rgba(255,255,255,.12);transition:.3s}
.quiz-progress i.on{background:linear-gradient(90deg,var(--gold2),var(--primary2))}
.quiz-q{font-size:15px;color:var(--white);margin-bottom:12px;line-height:1.6}
.quiz-opt{display:block;width:100%;text-align:left;padding:11px 14px;margin-bottom:9px;border-radius:11px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--glass-border);color:rgba(245,240,235,.9);font-size:14px;transition:.2s;font-family:inherit}
.quiz-opt:hover{border-color:var(--gold);transform:translateX(3px)}
.quiz-opt.sel{border-color:var(--gold2);background:rgba(212,175,55,.14)}
.quiz-opt.ok{border-color:#7ECE9B;background:rgba(126,206,155,.18);color:#dff5e7}
.quiz-opt.no{border-color:#FF8A80;background:rgba(255,138,128,.16)}
.quiz-result{text-align:center;animation:fadeUp .5s ease}
.quiz-result .qr-emoji{font-size:40px}
.quiz-result .qr-title{font-size:18px;color:var(--gold2);margin:8px 0;font-weight:700}
.quiz-result .qr-desc{font-size:14px;color:rgba(245,240,235,.85);line-height:1.8}
.quiz-result .qr-score{font-size:15px;color:var(--white);margin:10px 0}
.quiz-restart{margin-top:14px}

/* 心愿漂流瓶 */
.wish-box{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.wish-input{width:100%;background:rgba(255,255,255,.06);border:1px solid var(--glass-border);color:var(--white);border-radius:10px;padding:10px 12px;font-size:14px;outline:none;font-family:inherit;resize:vertical;min-height:64px}
.wish-input:focus{border-color:var(--gold)}
.wish-show{margin-top:14px;min-height:36px}
.wish-bubble{background:rgba(79,195,247,.1);border:1px solid rgba(79,195,247,.3);border-radius:14px;padding:12px 14px;font-size:14px;color:rgba(245,240,235,.92);line-height:1.6;animation:fadeUp .5s ease}
.wish-bubble .wb-from{display:block;margin-top:6px;font-size:11px;color:rgba(245,240,235,.5)}
.wish-count{font-size:12px;color:rgba(245,240,235,.5);margin-top:8px}

/* 龙翔街重点突出 */
.longxiang-feature{margin-top:18px;border-radius:18px;overflow:hidden;cursor:pointer;position:relative;
  background:linear-gradient(120deg,#3a0d12,#7a1f12 55%,#b8431c);
  border:1px solid rgba(255,180,120,.35);box-shadow:0 14px 40px rgba(180,60,20,.3);transition:.25s}
.longxiang-feature:hover{transform:translateY(-2px);box-shadow:0 18px 48px rgba(180,60,20,.45)}
.longxiang-feature .lx-badge{display:inline-block;margin:18px 0 0 22px;font-size:12px;letter-spacing:1px;
  padding:5px 12px;border-radius:20px;background:rgba(0,0,0,.28);color:#ffd9b0;border:1px solid rgba(255,200,150,.3)}
.longxiang-feature .lx-main{padding:14px 22px 22px;display:grid;grid-template-columns:1.5fr .8fr;gap:18px;align-items:center}
.longxiang-feature h3{color:#ffe6c2;font-size:22px;margin:8px 0 8px}
.longxiang-feature p{color:rgba(255,235,220,.85);font-size:14px;line-height:1.8;margin:0 0 12px}
.longxiang-feature .lx-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}
.longxiang-feature .lx-tags .tag{background:rgba(255,255,255,.12);border-color:rgba(255,200,150,.25);color:#ffe6c2}
.longxiang-feature .lx-list{list-style:none;margin:0 0 10px;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:6px 14px}
.longxiang-feature .lx-list li{font-size:13px;color:rgba(255,235,220,.88);line-height:1.6}
.longxiang-feature .lx-emoji{font-size:40px;line-height:1.5;text-align:center;letter-spacing:4px;
  filter:drop-shadow(0 6px 14px rgba(0,0,0,.35));user-select:none}
.longxiang-feature .card-link-text{color:#ffd9b0}
@media(max-width:860px){
  .longxiang-feature .lx-main{grid-template-columns:1fr}
  .longxiang-feature .lx-emoji{font-size:34px;margin-top:6px}
  .longxiang-feature .lx-list{grid-template-columns:1fr}
}

/* ===== 弹幕 ===== */
.danmaku-layer{position:fixed;inset:0;pointer-events:none;z-index:150;overflow:hidden;display:none}
.danmaku-layer.on{display:block}
.dm{position:absolute;white-space:nowrap;font-size:18px;font-weight:600;color:#fff;text-shadow:0 1px 4px rgba(0,0,0,.6);will-change:transform;animation:dmMove linear forwards}
@keyframes dmMove{from{transform:translateX(100vw)}to{transform:translateX(-100%)}}
.dm-toggle{position:fixed;right:20px;top:calc(98px + env(safe-area-inset-top,0px));z-index:197;cursor:pointer;
  background:rgba(10,14,26,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(212,175,55,.35);color:var(--white);border-radius:30px;padding:8px 14px;font-size:13px;
  display:flex;align-items:center;gap:6px;box-shadow:0 4px 18px rgba(0,0,0,.4);-webkit-tap-highlight-color:transparent;transition:transform .2s}
.dm-toggle:active{transform:scale(.95)}
.dm-bar{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(86px + env(safe-area-inset-bottom,0px));z-index:198;
  display:none;gap:8px;align-items:center;background:rgba(10,14,26,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(212,175,55,.35);border-radius:30px;padding:8px 12px;box-shadow:0 4px 18px rgba(0,0,0,.5);max-width:92vw}
.dm-bar.show{display:flex}
.dm-grip{cursor:grab;font-size:18px;line-height:1;color:rgba(245,240,235,.6);padding:0 4px;user-select:none;touch-action:none}
.dm-grip:active{cursor:grabbing}
.dm-bar input{flex:1;min-width:120px;max-width:46vw;background:rgba(255,255,255,.08);border:1px solid var(--glass-border);
  color:var(--white);border-radius:20px;padding:8px 14px;font-size:14px;outline:none}
.dm-bar button{border:none;background:linear-gradient(135deg,var(--primary),var(--gold));color:#fff;border-radius:20px;padding:8px 16px;cursor:pointer;font-size:14px;white-space:nowrap}
@media(max-width:768px){.dm-toggle{top:calc(78px + env(safe-area-inset-top,0px))}}


/* ===== 新生墙 ===== */
.wall-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));margin-top:24px}
.wall-card{position:relative;padding:20px;background:var(--glass);border:1px solid var(--glass-border);border-radius:16px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform .3s,border-color .3s}
.wall-card:hover{transform:translateY(-4px);border-color:var(--gold)}
.wall-card .wc-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.wall-card .wc-ava{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;background:linear-gradient(135deg,var(--primary),var(--gold));flex-shrink:0}
.wall-card .wc-name{font-weight:700;font-size:16px;color:var(--white)}
.wall-card .wc-meta{font-size:12px;color:rgba(245,240,235,.6)}
.wall-card .wc-tag{display:inline-block;margin:8px 6px 0 0;padding:2px 10px;border-radius:20px;font-size:11px;background:rgba(212,175,55,.15);color:var(--gold2)}
.wall-card .wc-sign{margin-top:10px;font-size:14px;color:rgba(245,240,235,.85);line-height:1.6;border-left:3px solid var(--gold);padding-left:10px}
.wall-form{background:var(--glass);border:1px solid var(--glass-border);border-radius:18px;padding:24px;margin-top:20px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.wall-layout{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}
.wall-left{}
.wall-right{position:sticky;top:100px;display:flex;flex-direction:column;align-items:center;gap:10px}
.wall-preview-label{font-size:13px;color:var(--gold2);letter-spacing:1px;font-weight:600}
.wall-right .wall-card{width:100%;max-width:300px;border-style:dashed;border-color:rgba(212,175,55,.35)}
.wall-form .wf-row{display:flex;gap:14px;flex-wrap:wrap}
.wall-form .wf-field{flex:1;min-width:160px;margin-bottom:14px}
.wall-form label{display:block;font-size:13px;color:rgba(245,240,235,.7);margin-bottom:6px;letter-spacing:.5px}
.wall-form input,.wall-form textarea{width:100%;background:rgba(255,255,255,.06);border:1px solid var(--glass-border);color:var(--white);border-radius:10px;padding:10px 12px;font-size:14px;outline:none;font-family:inherit}
.wall-form input:focus,.wall-form textarea:focus{border-color:var(--gold)}
.wall-form textarea{resize:vertical;min-height:60px}
.wf-submit{margin-top:6px;padding:12px 28px;border:none;border-radius:12px;cursor:pointer;font-size:15px;letter-spacing:2px;background:linear-gradient(135deg,var(--primary),var(--gold));color:#fff;font-weight:700;box-shadow:0 6px 20px rgba(212,175,55,.3)}
.wf-submit:active{transform:scale(.98)}
.wf-msg{margin-top:10px;font-size:13px;color:var(--gold2);min-height:18px}
@media(max-width:860px){
  .wall-layout{grid-template-columns:1fr;gap:20px}
  .wall-right{position:static;flex-direction:row;flex-wrap:wrap;justify-content:center}
  .wall-right .wall-card{max-width:340px}
}
@media(max-width:768px){
  .wall-form .wf-row{flex-direction:column;gap:0}
  .wall-form .wf-field{min-width:0}
}
/* 底部 Tab 在小屏允许压缩，避免 6 个标签横向溢出 */
@media(max-width:768px){
  .btab{min-width:0;padding:6px 4px}
  .btab span{font-size:9px}
}