/* ===== 福源玉品 · 和田玉藏品 ===== */
:root{
  --jade-deep:#1d3a30;
  --jade:#2e6b52;
  --jade-light:#6fae90;
  --cream:#f5f2e9;
  --cream-2:#ece6d6;
  --gold:#c9a86a;
  --gold-deep:#a8843f;
  --ink:#1c2422;
  --ink-soft:#4a5652;
  --line:rgba(201,168,106,.35);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Serif SC',serif;
  background:var(--cream);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}

/* ===== 导航 ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:900;
  background:rgba(245,242,233,.86);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:1180px;margin:0 auto;padding:0 28px;
  height:64px;display:flex;align-items:center;justify-content:space-between;
}
.brand{
  font-family:'Ma Shan Zheng',cursive;
  font-size:26px;color:var(--jade-deep);letter-spacing:2px;
}
.nav-links{display:flex;gap:28px}
.nav-links a{
  font-size:15px;color:var(--ink-soft);letter-spacing:1px;
  position:relative;padding:4px 0;transition:color .3s;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;
  background:var(--gold);transition:width .3s;
}
.nav-links a:hover{color:var(--jade)}
.nav-links a:hover::after{width:100%}

/* ===== 首屏 ===== */
.hero{
  position:relative;height:100vh;min-height:620px;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  transform:scale(1.06);
  animation:heroZoom 18s ease-in-out infinite alternate;
}
@keyframes heroZoom{from{transform:scale(1.06)}to{transform:scale(1.14)}}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(29,58,48,.55) 0%,rgba(29,58,48,.72) 60%,rgba(29,58,48,.9) 100%);
}
.hero-content{
  position:relative;z-index:2;text-align:center;color:var(--cream);
  padding:0 24px;animation:fadeUp 1.4s ease both;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
.hero-kicker{
  font-size:14px;letter-spacing:8px;color:var(--gold);
  margin-bottom:22px;
}
.hero-title{
  font-family:'Ma Shan Zheng',cursive;
  font-size:clamp(56px,11vw,120px);
  letter-spacing:8px;line-height:1.1;
  text-shadow:0 4px 30px rgba(0,0,0,.4);
}
.hero-sub{
  font-size:clamp(15px,2.4vw,20px);
  letter-spacing:4px;margin-top:18px;color:rgba(245,242,233,.82);
}
.hero-cta{
  display:inline-block;margin-top:44px;
  padding:14px 46px;border:1px solid var(--gold);
  color:var(--gold);letter-spacing:6px;font-size:15px;
  transition:all .35s;
}
.hero-cta:hover{background:var(--gold);color:var(--jade-deep)}
.hero-scroll{
  position:absolute;bottom:32px;left:50%;transform:translateX(-50%);
  color:rgba(245,242,233,.6);font-size:20px;
  animation:bounce 2s infinite;z-index:2;
}
@keyframes bounce{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,10px)}}

/* ===== 通用板块 ===== */
.section{padding:110px 0}
.section-kicker{
  font-size:13px;letter-spacing:7px;color:var(--gold-deep);
  text-align:center;margin-bottom:16px;
}
.section-title{
  font-family:'Ma Shan Zheng',cursive;
  font-size:clamp(34px,5.5vw,52px);
  color:var(--jade-deep);text-align:center;
  letter-spacing:4px;line-height:1.3;margin-bottom:26px;
}
.section-lead{
  max-width:720px;margin:0 auto;text-align:center;
  font-size:16.5px;color:var(--ink-soft);line-height:2;
}

/* ===== 品牌理念 ===== */
.philosophy{background:linear-gradient(180deg,var(--cream) 0%,var(--cream-2) 100%)}
.virtues{
  display:grid;grid-template-columns:repeat(5,1fr);
  gap:18px;margin-top:64px;
}
.virtue{
  text-align:center;padding:34px 12px;
  border:1px solid var(--line);background:rgba(255,255,255,.55);
  transition:all .35s;
}
.virtue:hover{background:var(--jade-deep);border-color:var(--jade-deep);transform:translateY(-6px)}
.virtue:hover .v-num,.virtue:hover h3,.virtue:hover p{color:var(--cream)}
.v-num{
  display:block;font-family:'Ma Shan Zheng',cursive;
  font-size:22px;color:var(--gold);margin-bottom:12px;
}
.virtue h3{
  font-family:'Ma Shan Zheng',cursive;font-size:30px;
  color:var(--jade-deep);margin-bottom:10px;letter-spacing:2px;
}
.virtue p{font-size:14px;color:var(--ink-soft)}

/* ===== 藏品网格 ===== */
.collection{background:var(--cream)}
.grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:30px;margin-top:64px;
}
.card{
  background:#fff;border:1px solid var(--line);
  overflow:hidden;cursor:pointer;
  transition:transform .4s,box-shadow .4s;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-8px);box-shadow:0 22px 46px rgba(29,58,48,.16)}
.card-img{
  aspect-ratio:1/1;background-size:cover;background-position:center;
  transition:transform .6s;position:relative;background-color:#e8e4d8;
}
.card:hover .card-img{transform:scale(1.07)}
.card-body{padding:22px 20px 26px;text-align:center;flex:1;display:flex;flex-direction:column;justify-content:center}
.card-name{
  font-family:'Ma Shan Zheng',cursive;
  font-size:23px;color:var(--jade-deep);
  letter-spacing:2px;margin-bottom:8px;
}
.card-desc{font-size:13px;color:var(--ink-soft);margin-bottom:14px;line-height:1.7}
.card-price{
  font-size:19px;color:var(--gold-deep);font-weight:600;
  letter-spacing:1px;
}

/* ===== 玉料产地 ===== */
.origin{background:linear-gradient(180deg,var(--cream-2) 0%,var(--cream) 100%)}
.origin-wrap{
  display:grid;grid-template-columns:1fr 1fr;
  gap:64px;align-items:center;
}
.origin-img{
  aspect-ratio:4/5;background-size:cover;background-position:center;
  border:1px solid var(--line);box-shadow:0 18px 40px rgba(29,58,48,.14);
}
.origin-text .section-title,.origin-text .section-kicker{text-align:left}
.origin-text .section-lead{text-align:left;margin:0}
.jade-types{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 20px}
.jt{
  padding:8px 20px;font-size:14px;letter-spacing:2px;
  border:1px solid var(--line);background:#fff;color:var(--ink-soft);
}
.jt-white{border-color:#d9d2c2;background:#fbfaf6}
.jt-green{border-color:#b7cfc2;background:#f2f7f4}
.jt-sugar{border-color:#d8c3a4;background:#faf5ee}
.jt-big{border-color:#9ec4b2;background:#eef5f1}
.jt-flower{border-color:#a9b3b7;background:#f2f4f4}
.origin-note{font-size:14px;color:var(--ink-soft);line-height:2}

/* ===== 匠心工艺 ===== */
.craft{background:var(--jade-deep);color:var(--cream)}
.craft .section-kicker{color:var(--gold)}
.craft .section-title{color:var(--cream)}
.craft .section-lead{color:rgba(245,242,233,.72)}
.craft-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:30px;margin-top:64px;
}
.craft-card{
  border:1px solid rgba(201,168,106,.3);
  background:rgba(255,255,255,.04);
  overflow:hidden;transition:all .4s;
}
.craft-card:hover{background:rgba(255,255,255,.08);transform:translateY(-6px)}
.craft-img{
  aspect-ratio:4/3;background-size:cover;background-position:center;
  transition:transform .6s;
}
.craft-card:hover .craft-img{transform:scale(1.06)}
.craft-card h3{
  font-family:'Ma Shan Zheng',cursive;
  font-size:28px;letter-spacing:6px;
  color:var(--gold);text-align:center;margin:24px 0 12px;
}
.craft-card p{
  font-size:14.5px;color:rgba(245,242,233,.78);
  line-height:2;padding:0 24px 30px;
}

/* ===== 联系 ===== */
.contact{background:linear-gradient(180deg,var(--cream) 0%,var(--cream-2) 100%)}
.contact-wrap{
  display:grid;grid-template-columns:1.4fr 1fr;
  gap:64px;align-items:center;
}
.contact-info .section-title,.contact-info .section-kicker{text-align:left}
.info-list{list-style:none;margin-top:34px}
.info-list li{
  display:flex;gap:20px;padding:18px 0;
  border-bottom:1px dashed var(--line);
  font-size:16px;
}
.info-list li span{
  min-width:110px;color:var(--gold-deep);
  letter-spacing:2px;font-size:14px;
}
.info-list li b{color:var(--jade-deep);font-weight:500;letter-spacing:1px}
.contact-note{margin-top:24px;font-size:14px;color:var(--ink-soft)}
.contact-qr{text-align:center}
.contact-qr img{
  width:260px;margin:0 auto;
  border:1px solid var(--line);padding:10px;background:#fff;
  box-shadow:0 16px 36px rgba(29,58,48,.14);
}
.contact-qr p{margin-top:16px;font-size:14px;color:var(--ink-soft);letter-spacing:2px}

/* ===== 页脚 ===== */
.footer{
  background:var(--jade-deep);color:rgba(245,242,233,.75);
  text-align:center;padding:56px 24px 40px;
}
.footer p:first-child{
  font-family:'Ma Shan Zheng',cursive;
  font-size:26px;color:var(--gold);letter-spacing:4px;
}
.footer-sub{font-size:14px;letter-spacing:4px;margin-top:10px}
.footer-copy{font-size:13px;margin-top:20px;color:rgba(245,242,233,.5)}

/* ===== 灯箱 ===== */
.lightbox{
  position:fixed;inset:0;z-index:1000;
  background:rgba(15,26,22,.94);
  display:none;align-items:center;justify-content:center;
  flex-direction:column;padding:40px 20px;
}
.lightbox.on{display:flex;animation:fadeIn .3s}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.lightbox img{
  max-width:min(88vw,860px);max-height:74vh;
  object-fit:contain;border:1px solid rgba(201,168,106,.4);
}
.lb-close{
  position:absolute;top:26px;right:36px;
  color:var(--cream);font-size:44px;line-height:1;
  cursor:pointer;opacity:.7;transition:opacity .3s;
}
.lb-close:hover{opacity:1}
#lbCaption{
  color:var(--gold);margin-top:22px;font-size:17px;
  letter-spacing:3px;text-align:center;
}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .nav-links{display:none}
  .grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .virtues{grid-template-columns:repeat(3,1fr)}
  .origin-wrap{grid-template-columns:1fr;gap:40px}
  .origin-img{aspect-ratio:16/10}
  .craft-grid{grid-template-columns:1fr;gap:24px}
  .contact-wrap{grid-template-columns:1fr;gap:44px}
}
@media (max-width:560px){
  .section{padding:74px 0}
  .wrap{padding:0 20px}
  .grid{grid-template-columns:1fr;gap:22px}
  .virtues{grid-template-columns:repeat(2,1fr);gap:12px}
  .hero-title{letter-spacing:4px}
  .contact-qr img{width:220px}
}