/* ===== 凌云城 - 全站共享样式 ===== */
/* 设计理念: 去AI味 / 赛博朋克+东方美学 / 动态交互 */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;700;900&family=Noto+Sans+SC:wght@300;400;500;700&family=ZCOOL+KuaiLe&display=swap');

*{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#08090d;
  --bg2:#0e1017;
  --surface:#13151d;
  --surface2:#1a1d28;
  --gold:#d4a853;
  --gold2:#f0c96e;
  --gold-dim:rgba(212,168,83,0.15);
  --cyan:#5eead4;
  --cyan-dim:rgba(94,234,212,0.12);
  --red:#f87171;
  --text:#e8e6e3;
  --text2:#8a8d98;
  --text3:#4a4d58;
  --border:#1e2028;
  --border2:#282b36;
  --glow:0 0 30px rgba(212,168,83,0.15);
  --radius:12px;
  --font-display:'ZCOOL KuaiLe','Noto Serif SC',serif;
  --font-heading:'Noto Serif SC',serif;
  --font-body:'Noto Sans SC',sans-serif;
  /* dashboard / legacy aliases */
  --bg-primary:var(--bg);
  --bg-secondary:var(--surface);
  --bg-tertiary:var(--surface2);
  --text-primary:var(--text);
  --text-secondary:var(--text2);
  --text-muted:var(--text3);
  --accent-color:var(--gold);
  --border-color:var(--border);
}

html{scroll-behavior:smooth;overflow-x:hidden}
body{font-family:var(--font-body);background:var(--bg);color:var(--text);overflow-x:hidden;min-height:100vh}
a{text-decoration:none;color:inherit}

::selection{background:var(--gold);color:#000}

/* ===== 滚动条 ===== */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--gold)}

/* ===== 导航栏 ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:64px;padding:0 clamp(1rem,4vw,4rem);
  display:flex;align-items:center;justify-content:space-between;
  background:rgba(8,9,13,0.85);backdrop-filter:blur(16px) saturate(1.2);
  border-bottom:1px solid var(--border);
  transition:all .3s;
}
.nav.scrolled{background:rgba(8,9,13,0.95);box-shadow:0 4px 24px rgba(0,0,0,0.4)}

.nav-logo{
  font-family:var(--font-display);font-size:1.2rem;
  color:var(--gold);letter-spacing:0.15em;
  display:flex;align-items:center;gap:.5rem;
  text-shadow:0 0 20px rgba(212,168,83,0.3);
}
.nav-logo::before{
  content:'';width:28px;height:28px;
  background:linear-gradient(135deg,var(--gold),var(--gold2));
  border-radius:6px;display:block;
  mask:url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5'/%3E%3C/svg%3E") center/contain no-repeat;
}

.nav-links{display:flex;gap:clamp(1rem,2.5vw,2rem);list-style:none}
.nav-links a{
  font-size:.82rem;color:var(--text2);letter-spacing:.04em;
  padding:.4rem 0;position:relative;transition:color .2s;font-weight:500;
}
.nav-links a::after{
  content:'';position:absolute;bottom:0;left:0;width:0;height:1.5px;
  background:var(--gold);transition:width .3s cubic-bezier(.4,0,.2,1);
}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}

.nav-right{display:flex;align-items:center;gap:.6rem}
.nav-btn{
  padding:.45rem 1rem;border-radius:6px;font-size:.8rem;font-weight:500;
  cursor:pointer;transition:all .2s;border:none;font-family:var(--font-body);
}
.nav-btn.outline{background:transparent;color:var(--text2);border:1px solid var(--border2)}
.nav-btn.outline:hover{border-color:var(--gold);color:var(--gold)}
.nav-btn.filled{background:var(--gold);color:#000}
.nav-btn.filled:hover{background:var(--gold2);box-shadow:var(--glow)}
.user-badge{
  display:flex;align-items:center;gap:.5rem;
  padding:.3rem .6rem .3rem .3rem;
  background:var(--surface);border:1px solid var(--border);
  border-radius:8px;text-decoration:none;color:var(--text);
  font-size:.8rem;transition:all .2s;
}
.user-badge:hover{border-color:var(--gold)}
.user-badge .avatar{
  width:28px;height:28px;border-radius:6px;background:var(--surface2);
  display:flex;align-items:center;justify-content:center;overflow:hidden;flex-shrink:0;
}
.user-badge .avatar svg{width:16px;height:16px;color:var(--text3)}

/* 移动端菜单 */
.nav-toggle{
  display:none;flex-direction:column;gap:5px;cursor:pointer;
  background:none;border:none;padding:.4rem;
}
.nav-toggle span{width:22px;height:1.5px;background:var(--text);transition:all .2s;border-radius:1px}
.nav-toggle.open span:nth-child(1){transform:rotate(45deg) translate(4px,4px)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(4px,-4px)}

@media(max-width:768px){
  .nav-links{
    display:none;position:fixed;top:64px;left:0;right:0;
    background:var(--bg2);flex-direction:column;padding:1rem 1.5rem;
    border-bottom:1px solid var(--border);gap:.5rem;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:.6rem 0;font-size:.9rem}
  .nav-toggle{display:flex}
}

/* ===== 通用标题 ===== */
.section-header{
  text-align:center;padding:clamp(4rem,10vh,8rem) 1.5rem clamp(2rem,5vh,4rem);
  position:relative;
}
.section-header h1{
  font-family:var(--font-heading);font-size:clamp(1.8rem,4vw,2.8rem);
  font-weight:700;line-height:1.3;margin-bottom:.6rem;
}
.section-header p{color:var(--text2);font-size:.95rem;line-height:1.6}

/* ===== 艺术字效果 ===== */
.art-text{
  background:linear-gradient(135deg,var(--gold),var(--gold2),var(--gold));
  background-size:200% 200%;
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  animation:shimmer 4s ease infinite;
}
@keyframes shimmer{
  0%,100%{background-position:0% 50%}
  50%{background-position:100% 50%}
}

.glow-text{
  color:var(--gold);
  text-shadow:0 0 10px rgba(212,168,83,0.4),0 0 40px rgba(212,168,83,0.15);
}

.stroke-text{
  -webkit-text-stroke:1.5px var(--gold);
  -webkit-text-fill-color:transparent;
}

.gradient-text{
  background:linear-gradient(180deg,var(--text) 0%,var(--text3) 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}

/* ===== 卡片 ===== */
.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:1.8rem;
  transition:all .35s cubic-bezier(.4,0,.2,1);
  position:relative;overflow:hidden;
}
.card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(212,168,83,0.2),transparent);
  opacity:0;transition:opacity .3s;
}
.card:hover{
  border-color:var(--border2);transform:translateY(-4px);
  box-shadow:0 12px 40px rgba(0,0,0,0.3),0 0 0 1px rgba(212,168,83,0.05);
}
.card:hover::before{opacity:1}

.card-icon{
  width:44px;height:44px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;margin-bottom:1rem;
  background:var(--gold-dim);border:1px solid rgba(212,168,83,0.1);
}
.card h3{font-size:1rem;font-weight:600;margin-bottom:.4rem}
.card p{font-size:.88rem;color:var(--text2);line-height:1.6}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.75rem 1.8rem;border-radius:8px;font-size:.88rem;font-weight:600;
  cursor:pointer;transition:all .25s;border:none;font-family:var(--font-body);
  position:relative;overflow:hidden;
}
.btn-gold{background:var(--gold);color:#000}
.btn-gold:hover{background:var(--gold2);box-shadow:0 4px 20px rgba(212,168,83,0.35);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border2)}
.btn-ghost:hover{border-color:var(--text2);background:rgba(255,255,255,0.03)}

/* ===== 标签 ===== */
.tag{
  display:inline-block;padding:.2rem .6rem;border-radius:4px;
  font-size:.72rem;font-weight:500;
}
.tag-gold{background:var(--gold-dim);color:var(--gold)}
.tag-cyan{background:var(--cyan-dim);color:var(--cyan)}
.tag-red{background:rgba(248,113,113,0.12);color:var(--red)}

/* ===== 页脚 ===== */
.footer{
  padding:3rem clamp(1rem,4vw,4rem) 1.5rem;
  border-top:1px solid var(--border);margin-top:4rem;
}
.footer-inner{
  max-width:1100px;margin:0 auto;
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem;
}
.footer-brand .logo{
  font-family:var(--font-display);font-size:1.1rem;color:var(--gold);
  margin-bottom:.6rem;display:block;letter-spacing:.1em;
}
.footer-brand p{font-size:.88rem;color:var(--text2);line-height:1.7;max-width:300px}
.footer-col h4{
  font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;
  color:var(--text3);margin-bottom:.8rem;font-weight:600;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:.5rem}
.footer-col a{font-size:.88rem;color:var(--text2);transition:color .2s}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{
  max-width:1100px;margin:2rem auto 0;padding-top:1.5rem;
  border-top:1px solid var(--border);
  font-size:.78rem;color:var(--text3);
  display:flex;justify-content:space-between;
}
@media(max-width:768px){
  .footer-inner{grid-template-columns:1fr;gap:2rem}
  .footer-bottom{flex-direction:column;gap:.3rem}
}

/* ===== 粒子背景 ===== */
#particles-canvas{
  position:fixed;top:0;left:0;width:100%;height:100%;
  pointer-events:none;z-index:0;
}

/* ===== 滚动动画 ===== */
.reveal{opacity:0;transform:translateY(30px);transition:all .7s cubic-bezier(.4,0,.2,1)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:.1s}
.reveal-delay-2{transition-delay:.2s}
.reveal-delay-3{transition-delay:.3s}
.reveal-delay-4{transition-delay:.4s}

/* ===== 数字动画 ===== */
.counter{display:inline-block}

/* ===== Toast ===== */
.toast{
  position:fixed;bottom:2rem;right:2rem;padding:.75rem 1.25rem;
  border-radius:8px;font-size:.85rem;z-index:9999;color:#fff;
  animation:toastIn .3s ease;
}
.toast.success{background:#10b981}
.toast.error{background:#ef4444}
.toast.info{background:var(--gold)}
@keyframes toastIn{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}

/* ===== 通用加载 ===== */
.loading{text-align:center;padding:4rem;color:var(--text3);font-size:.9rem}
.empty{text-align:center;padding:3rem;color:var(--text3);font-size:.88rem}

/* ===== Tab切换 ===== */
.tabs{display:flex;gap:0;background:var(--surface);border-radius:8px;padding:3px;margin-bottom:1.5rem}
.tab-btn{
  flex:1;padding:.6rem;text-align:center;border-radius:6px;font-size:.85rem;
  font-weight:500;cursor:pointer;transition:all .2s;color:var(--text3);
  border:none;background:none;font-family:var(--font-body);
}
.tab-btn.active{background:var(--surface2);color:var(--text);box-shadow:0 1px 4px rgba(0,0,0,0.2)}

/* ===== 表单 ===== */
.form-group{margin-bottom:1rem}
.form-group label{display:block;font-size:.82rem;color:var(--text2);margin-bottom:.35rem;font-weight:500}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:.65rem .85rem;background:var(--surface);
  border:1px solid var(--border);border-radius:8px;color:var(--text);
  font-size:.88rem;font-family:var(--font-body);transition:border-color .2s;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--gold);
}

/* ===== Badge ===== */
.badge{
  display:inline-flex;align-items:center;gap:.3rem;
  padding:.15rem .5rem;border-radius:4px;font-size:.72rem;font-weight:500;
}
.badge-gold{background:var(--gold-dim);color:var(--gold)}
.badge-red{background:rgba(248,113,113,0.12);color:var(--red)}
.badge-green{background:rgba(52,211,153,0.12);color:#34d399}
.badge-gray{background:var(--surface2);color:var(--text2)}

/* ===== Glassmorphism 毛玻璃卡片 ===== */
.glass{
  background:rgba(19,21,29,0.6);
  backdrop-filter:blur(20px) saturate(1.4);
  -webkit-backdrop-filter:blur(20px) saturate(1.4);
  border:1px solid rgba(255,255,255,0.06);
  border-radius:var(--radius);
  box-shadow:0 8px 32px rgba(0,0,0,0.25),inset 0 1px 0 rgba(255,255,255,0.05);
  transition:all .35s cubic-bezier(.4,0,.2,1);
}
.glass:hover{
  border-color:rgba(212,168,83,0.15);
  box-shadow:0 12px 48px rgba(0,0,0,0.35),inset 0 1px 0 rgba(255,255,255,0.08),0 0 0 1px rgba(212,168,83,0.08);
  transform:translateY(-4px);
}
.glass-light{
  background:rgba(255,255,255,0.04);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:var(--radius);
}

/* ===== 数字滚动动画增强 ===== */
.counter-wrap{text-align:center}
.counter-num{
  font-size:2.4rem;font-weight:700;
  font-family:var(--font-heading);
  background:linear-gradient(135deg,var(--gold),var(--gold2));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  line-height:1.2;
}
.counter-label{
  font-size:.82rem;color:var(--text2);margin-top:.3rem;
}

/* ===== FAQ 手风琴 ===== */
.faq-accordion{max-width:720px;margin:0 auto;padding:0 1.5rem 4rem}
.faq-item{
  border:1px solid var(--border);border-radius:10px;
  margin-bottom:.8rem;overflow:hidden;
  transition:border-color .3s;
}
.faq-item:hover{border-color:var(--border2)}
.faq-item.open{border-color:rgba(212,168,83,0.2)}
.faq-question{
  width:100%;padding:1rem 1.2rem;background:none;border:none;
  display:flex;justify-content:space-between;align-items:center;
  cursor:pointer;font-size:.92rem;font-weight:500;color:var(--text);
  font-family:var(--font-body);text-align:left;gap:1rem;
}
.faq-question::after{
  content:'';width:8px;height:8px;border-right:1.5px solid var(--text3);
  border-bottom:1.5px solid var(--text3);transform:rotate(45deg);
  transition:transform .3s cubic-bezier(.4,0,.2,1);flex-shrink:0;
}
.faq-item.open .faq-question::after{transform:rotate(-135deg)}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height .35s cubic-bezier(.4,0,.2,1);
}
.faq-answer-inner{
  padding:0 1.2rem 1rem;font-size:.88rem;color:var(--text2);line-height:1.7;
}

/* ===== 画廊 ===== */
.gallery-filters{
  display:flex;gap:.5rem;justify-content:center;
  padding:0 1.5rem;margin-bottom:2rem;flex-wrap:wrap;
}
.gallery-filter{
  padding:.5rem 1.2rem;border-radius:6px;font-size:.82rem;
  background:var(--surface);border:1px solid var(--border);
  color:var(--text2);cursor:pointer;transition:all .2s;
  font-family:var(--font-body);
}
.gallery-filter:hover{border-color:var(--gold);color:var(--gold)}
.gallery-filter.active{background:var(--gold);color:#000;border-color:var(--gold)}
.gallery-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:1.2rem;padding:0 clamp(1rem,4vw,4rem) 4rem;max-width:1200px;margin:0 auto;
}
.gallery-item{
  position:relative;border-radius:10px;overflow:hidden;
  aspect-ratio:16/10;cursor:pointer;
  border:1px solid var(--border);transition:all .35s;
}
.gallery-item:hover{border-color:var(--gold);transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,0.3)}
.gallery-item img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s cubic-bezier(.4,0,.2,1);
}
.gallery-item:hover img{transform:scale(1.06)}
.gallery-item .overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,0.8));
  opacity:0;transition:opacity .3s;display:flex;align-items:flex-end;
  padding:1rem;
}
.gallery-item:hover .overlay{opacity:1}
.gallery-item .overlay span{color:#fff;font-size:.88rem;font-weight:500}
.gallery-modal{
  display:none;position:fixed;inset:0;z-index:2000;
  background:rgba(0,0,0,0.92);backdrop-filter:blur(8px);
  align-items:center;justify-content:center;
}
.gallery-modal.open{display:flex}
.gallery-modal img{
  max-width:90vw;max-height:85vh;border-radius:8px;
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
}
.gallery-modal-close{
  position:absolute;top:1.5rem;right:1.5rem;
  width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,0.1);border:none;
  color:#fff;font-size:1.2rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background .2s;
}
.gallery-modal-close:hover{background:rgba(255,255,255,0.2)}

/* ===== 左侧固定社交导航栏 ===== */
.social-sidebar{
  position:fixed;left:1.5rem;top:50%;transform:translateY(-50%);
  z-index:999;display:flex;flex-direction:column;align-items:center;
  gap:1.2rem;padding:1.2rem .6rem;
  background:rgba(19,21,29,0.5);backdrop-filter:blur(20px) saturate(1.3);
  -webkit-backdrop-filter:blur(20px) saturate(1.3);
  border:1px solid rgba(255,255,255,0.06);border-radius:40px;
  box-shadow:0 8px 32px rgba(0,0,0,0.3);
  transition:all .4s cubic-bezier(.4,0,.2,1);
}
.social-sidebar:hover{
  background:rgba(19,21,29,0.7);border-color:rgba(212,168,83,0.12);
  box-shadow:0 12px 48px rgba(0,0,0,0.4),0 0 20px rgba(212,168,83,0.06);
}
.social-sidebar .sidebar-logo{
  width:42px;height:42px;border-radius:50%;overflow:hidden;
  background:linear-gradient(135deg,var(--gold),var(--gold2));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-size:.8rem;color:#000;font-weight:700;
  flex-shrink:0;transition:transform .3s;
  box-shadow:0 0 15px rgba(212,168,83,0.25);
}
.social-sidebar .sidebar-logo:hover{transform:scale(1.1)}
.social-sidebar .sidebar-divider{
  width:20px;height:1px;background:var(--border2);flex-shrink:0;
}
.social-sidebar .sidebar-icon{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--text3);font-size:.9rem;
  transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;
  text-decoration:none;
}
.social-sidebar .sidebar-icon:hover{color:var(--gold);transform:scale(1.15)}
.social-sidebar .sidebar-icon::before{
  content:'';position:absolute;inset:-3px;border-radius:50%;
  background:var(--gold);opacity:0;transition:opacity .3s;
  z-index:-1;
}
.social-sidebar .sidebar-icon:hover::before{opacity:0.1}
.social-sidebar .sidebar-icon svg{width:18px;height:18px;fill:currentColor}
@media(max-width:1024px){
  .social-sidebar{display:none}
}