/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --red:#C62828;--deep-red:#8B0000;--crimson:#B71C1C;
  --gold:#D4A017;--gold-light:#F5D76E;--gold-dim:#A07810;
  --ink:#2C1810;--ink-light:#5D4037;
  --cream:#FFF8F0;--parchment:#F5E6D3;--rice:#FFF3E0;
  --jade:#2E7D32;--jade-light:#4CAF50;
  --lantern:#E53935;
  --shadow:rgba(44,24,16,.12);
  --font-cn:'Noto Serif SC','SimSun',serif;
  --font-en:'Lora',Georgia,serif;
  --font-display:'Playfair Display',Georgia,serif;
  --nav-h:68px;
  --max-w:1100px;
  --radius:12px;
}

html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-en);color:var(--ink);
  background:var(--cream);line-height:1.75;
  overflow-x:hidden;
  min-height:100vh;
  display:flex;flex-direction:column;
}

/* Subtle paper texture */
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(ellipse at 15% 25%,rgba(212,160,23,.05) 0%,transparent 50%),
    radial-gradient(ellipse at 85% 75%,rgba(198,40,40,.03) 0%,transparent 50%);
}

/* ===== NAVIGATION ===== */
nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:linear-gradient(135deg,var(--deep-red) 0%,var(--red) 100%);
  box-shadow:0 2px 24px rgba(0,0,0,.35);
  border-bottom:3px solid var(--gold);
  height:var(--nav-h);
}
.nav-inner{
  max-width:1300px;margin:0 auto;
  display:flex;align-items:center;
  padding:0 1.5rem;height:100%;gap:1rem;
}
.nav-brand{
  font-family:var(--font-display);font-size:1.25rem;
  color:var(--gold-light);white-space:nowrap;
  letter-spacing:.04em;text-shadow:0 1px 4px rgba(0,0,0,.3);
  text-decoration:none;display:flex;align-items:center;gap:.4rem;
}
.nav-brand .fu{font-family:var(--font-cn);font-size:1.6rem;color:var(--gold)}
.nav-links{
  display:flex;gap:.2rem;overflow-x:auto;scrollbar-width:none;
  margin-left:auto;
}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{
  color:rgba(255,255,255,.8);text-decoration:none;
  font-size:.78rem;padding:.35rem .65rem;border-radius:4px;
  white-space:nowrap;transition:all .25s;letter-spacing:.015em;
}
.nav-links a:hover,.nav-links a.active{
  background:rgba(255,255,255,.14);color:var(--gold-light);
}

/* Mobile menu toggle */
.menu-toggle{
  display:none;background:none;border:none;color:var(--gold-light);
  font-size:1.5rem;cursor:pointer;margin-left:auto;
}

@media(max-width:900px){
  .nav-links{
    position:fixed;top:var(--nav-h);left:0;right:0;
    background:linear-gradient(180deg,var(--deep-red),rgba(139,0,0,.98));
    flex-direction:column;padding:.5rem 1rem;gap:0;
    max-height:0;overflow:hidden;transition:max-height .35s ease;
    border-bottom:2px solid var(--gold);
  }
  .nav-links.open{max-height:80vh;overflow-y:auto}
  .nav-links a{padding:.6rem .8rem;font-size:.85rem}
  .menu-toggle{display:block}
}

/* ===== HERO (INDEX) ===== */
.hero{
  position:relative;min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  text-align:center;padding:calc(var(--nav-h) + 2rem) 2rem 4rem;
  background:
    linear-gradient(180deg,rgba(139,0,0,.93) 0%,rgba(198,40,40,.88) 45%,rgba(139,0,0,.95) 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M30 5C35 15 45 15 45 25C45 35 30 45 30 55C30 45 15 35 15 25C15 15 25 15 30 5Z' fill='rgba(255,215,0,0.05)'/%3E%3C/svg%3E");
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  border:8px solid transparent;
  border-image:repeating-linear-gradient(90deg,var(--gold) 0,var(--gold) 8px,transparent 8px,transparent 16px) 8;
  margin:1rem;
}
.hero-content{position:relative;z-index:2;max-width:800px}
.hero h1{
  font-family:var(--font-display);
  font-size:clamp(2.4rem,6vw,4.2rem);
  color:var(--gold-light);text-shadow:0 3px 15px rgba(0,0,0,.4);
  line-height:1.2;margin-bottom:.3rem;
}
.hero h1 .cn{
  font-family:var(--font-cn);display:block;
  font-size:.5em;margin-top:.4rem;opacity:.85;
}
.hero-divider{
  width:140px;height:3px;margin:1.5rem auto;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.hero p{
  font-size:1.1rem;color:rgba(255,255,255,.88);
  max-width:620px;margin:0 auto 2rem;font-style:italic;
}
.hero-cta{
  display:inline-block;padding:.8rem 2.8rem;
  background:linear-gradient(135deg,var(--gold),var(--gold-light));
  color:var(--deep-red);font-weight:700;text-decoration:none;
  border-radius:5px;font-size:1rem;letter-spacing:.05em;
  box-shadow:0 4px 18px rgba(212,160,23,.4);
  transition:transform .3s,box-shadow .3s;
}
.hero-cta:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(212,160,23,.5)}

/* ===== LANTERNS ===== */
.lanterns{position:absolute;top:0;left:0;right:0;height:130px;pointer-events:none;overflow:hidden}
.lantern{
  position:absolute;width:38px;height:52px;
  background:radial-gradient(ellipse,var(--lantern),#B71C1C);
  border-radius:50% 50% 50% 50%/60% 60% 40% 40%;
  box-shadow:0 0 20px rgba(229,57,53,.35),inset 0 -10px 12px rgba(0,0,0,.2);
  animation:sway 3s ease-in-out infinite alternate;
}
.lantern::before{
  content:'';position:absolute;top:-10px;left:50%;transform:translateX(-50%);
  width:18px;height:10px;background:var(--gold);border-radius:3px 3px 0 0;
}
.lantern::after{
  content:'';position:absolute;bottom:-16px;left:50%;transform:translateX(-50%);
  width:2px;height:16px;background:var(--gold);
}
.lantern:nth-child(1){left:7%;top:18px}
.lantern:nth-child(2){left:22%;top:28px;animation-delay:.5s;transform:scale(.75)}
.lantern:nth-child(3){right:22%;top:22px;animation-delay:1s;transform:scale(.65)}
.lantern:nth-child(4){right:7%;top:12px;animation-delay:.3s}
.lantern:nth-child(5){left:50%;top:30px;animation-delay:.7s;transform:scale(.55)}
@keyframes sway{0%{transform:rotate(-3deg)}100%{transform:rotate(3deg)}}

/* ===== GRID (INDEX) ===== */
.grid-section{
  padding:5rem 1.5rem;position:relative;z-index:1;flex:1;
}
.grid-section .section-title{text-align:center;margin-bottom:3.5rem}
.grid-section .section-title h2{
  font-family:var(--font-display);font-size:clamp(1.8rem,4vw,2.8rem);
  color:var(--deep-red);display:inline-block;position:relative;
}
.grid-section .section-title h2::after{
  content:'';display:block;width:60%;height:3px;margin:.5rem auto 0;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.grid-section .section-title p{color:#888;font-style:italic;margin-top:.4rem}

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:1.8rem;max-width:1300px;margin:0 auto;
}
.grid-card{
  background:linear-gradient(135deg,#fff,var(--parchment));
  border:1px solid rgba(212,160,23,.18);border-radius:var(--radius);
  overflow:hidden;text-decoration:none;color:inherit;
  box-shadow:0 3px 16px var(--shadow);
  transition:transform .35s,box-shadow .35s;
  display:flex;flex-direction:column;
}
.grid-card:hover{
  transform:translateY(-6px);
  box-shadow:0 10px 36px rgba(0,0,0,.13);
}
.card-icon{
  height:200px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--deep-red),var(--red));
  position:relative;overflow:hidden;
}
.card-icon svg{width:50%;height:50%;filter:drop-shadow(0 2px 8px rgba(0,0,0,.25))}
.card-icon .badge{
  position:absolute;top:.8rem;left:.8rem;
  background:var(--gold);color:var(--deep-red);
  font-family:var(--font-cn);font-size:.8rem;font-weight:700;
  padding:.2rem .6rem;border-radius:3px;
}
.card-body{padding:1.2rem 1.3rem 1.5rem;flex:1;display:flex;flex-direction:column}
.card-body h3{
  font-family:var(--font-display);font-size:1.25rem;color:var(--deep-red);
  margin-bottom:.15rem;
}
.card-body .cn-name{
  font-family:var(--font-cn);font-size:.9rem;color:var(--gold);
  margin-bottom:.6rem;display:block;
}
.card-body p{font-size:.88rem;color:#666;flex:1}
.card-body .arrow{
  margin-top:.8rem;color:var(--red);font-weight:700;font-size:.85rem;
  letter-spacing:.03em;transition:letter-spacing .3s;
}
.grid-card:hover .arrow{letter-spacing:.08em}

/* ===== ITEM PAGE ===== */
.item-page{
  padding:calc(var(--nav-h) + 3rem) 1.5rem 4rem;flex:1;position:relative;z-index:1;
}
.item-hero{
  max-width:var(--max-w);margin:0 auto 3rem;
  display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;
}
.item-visual{
  aspect-ratio:1;border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(135deg,var(--deep-red),var(--red));
  display:flex;align-items:center;justify-content:center;position:relative;
  box-shadow:0 8px 32px rgba(139,0,0,.25);
}
.item-visual svg{width:55%;height:55%;filter:drop-shadow(0 3px 10px rgba(0,0,0,.3))}
.item-visual .badge{
  position:absolute;top:1rem;left:1rem;
  background:var(--gold);color:var(--deep-red);
  font-family:var(--font-cn);font-size:1rem;font-weight:700;
  padding:.3rem .8rem;border-radius:4px;
}

.item-intro h1{
  font-family:var(--font-display);font-size:clamp(2rem,4vw,3rem);
  color:var(--deep-red);line-height:1.2;margin-bottom:.2rem;
}
.item-intro .cn-name{
  font-family:var(--font-cn);font-size:1.2rem;color:var(--gold);
  margin-bottom:1rem;display:block;
}
.item-intro .tagline{
  font-style:italic;color:var(--ink-light);font-size:1.05rem;
  border-left:3px solid var(--gold);padding-left:1rem;margin-bottom:1.5rem;
}

/* Sections */
.content-section{
  max-width:var(--max-w);margin:0 auto 3rem;
}
.content-card{
  background:linear-gradient(135deg,#fff,var(--parchment));
  border:1px solid rgba(212,160,23,.18);border-radius:var(--radius);
  padding:2rem 2.5rem;box-shadow:0 3px 16px var(--shadow);
  position:relative;
}
.content-card::before{
  content:'';position:absolute;top:-1px;left:40px;right:40px;height:3px;
  background:linear-gradient(90deg,transparent,var(--gold),var(--red),var(--gold),transparent);
  border-radius:2px;
}
.content-card h2{
  font-family:var(--font-display);font-size:1.6rem;color:var(--deep-red);
  margin-bottom:1rem;display:flex;align-items:center;gap:.6rem;
}
.content-card h2 .icon{font-size:1.2rem;opacity:.6}
.content-card p{color:#555;margin-bottom:1rem;font-size:.98rem}
.content-card p:last-child{margin-bottom:0}

.meaning-box{
  background:linear-gradient(90deg,rgba(212,160,23,.1),transparent);
  border-left:3px solid var(--gold);border-radius:0 8px 8px 0;
  padding:1rem 1.5rem;margin:1.5rem 0;
  font-style:italic;color:var(--deep-red);font-size:.95rem;
}
.meaning-box::before{content:'☯ '}

.uses-list{list-style:none;margin-top:1rem}
.uses-list li{
  padding:.5rem 0 .5rem 1.8rem;position:relative;
  color:#666;font-size:.93rem;
}
.uses-list li::before{
  content:'福';position:absolute;left:0;color:var(--red);
  font-family:var(--font-cn);font-size:.7rem;top:.55rem;
}

/* Back link */
.back-link{
  display:inline-flex;align-items:center;gap:.4rem;
  color:var(--red);text-decoration:none;font-size:.9rem;
  margin-bottom:2rem;transition:gap .3s;
}
.back-link:hover{gap:.7rem}

/* ===== FOOTER ===== */
footer{
  background:linear-gradient(135deg,var(--ink),#1a0f08);
  padding:2.5rem 2rem;text-align:center;
  border-top:4px solid var(--gold);position:relative;z-index:1;
}
footer .blessing{
  font-family:var(--font-cn);font-size:1.4rem;
  color:var(--gold);margin-bottom:.6rem;letter-spacing:.3em;
}
footer p{color:rgba(255,255,255,.45);font-size:.85rem}

/* ===== SCROLL REVEAL ===== */
.reveal{opacity:0;transform:translateY(25px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  .item-hero{grid-template-columns:1fr;gap:1.5rem}
  .item-visual{max-height:320px}
  .content-card{padding:1.5rem}
  .grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
}
@media(max-width:600px){
  .hero h1{font-size:2rem}
  .hero::before{margin:.5rem;border-width:4px}
  .content-card{padding:1.2rem}
  .item-intro h1{font-size:1.6rem}
  .grid{grid-template-columns:1fr}
}