/* ============================================================
   东行欣盛工作室 · 作品集网站
   暗色沉浸风格
   ============================================================ */

:root{
  --bg:#07070b;
  --bg-2:#0c0c14;
  --surface:#12121c;
  --surface-2:#181824;
  --line:rgba(255,255,255,.08);
  --text:#ececf4;
  --muted:#9898a8;
  --muted-2:#6a6a7a;
  --accent:#4f7dff;
  --accent-2:#8b5cf6;
  --accent-3:#22d3ee;
  --grad:linear-gradient(100deg,var(--accent),var(--accent-2) 55%,var(--accent-3));
  --radius:16px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"SF Mono","Cascadia Code",Consolas,"Courier New",monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:rgba(79,125,255,.35)}

/* 背景粒子画布 */
#bg-canvas{
  position:fixed;inset:0;width:100%;height:100%;
  z-index:0;pointer-events:none;opacity:.55;
}

/* ---------------- 顶部导航 ---------------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 5vw;
  transition:padding .35s ease, background .35s ease, border-color .35s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  padding:14px 5vw;
  background:rgba(7,7,11,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.brand{
  font-size:19px;font-weight:700;letter-spacing:.12em;
}
.brand span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:600}
.site-nav{display:flex;gap:38px}
.site-nav a{
  font-size:14px;color:var(--muted);letter-spacing:.08em;
  position:relative;transition:color .25s;
}
.site-nav a::after{
  content:"";position:absolute;left:0;bottom:-6px;height:1px;width:0;
  background:var(--grad);transition:width .3s ease;
}
.site-nav a:hover{color:var(--text)}
.site-nav a:hover::after{width:100%}

.nav-toggle{display:none;flex-direction:column;gap:5px;padding:6px}
.nav-toggle span{width:22px;height:2px;background:var(--text);transition:.3s}
.nav-toggle.open span:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav-toggle.open span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

/* ---------------- 首屏 Hero ---------------- */
.hero{
  min-height:100vh;
  display:flex;align-items:center;
  padding:120px 5vw 80px;
  position:relative;z-index:1;
}
.hero-content{max-width:1100px;width:100%}
.hero-eyebrow{
  font-family:var(--mono);font-size:13px;letter-spacing:.42em;
  color:var(--muted);margin-bottom:26px;
}
.hero-title{
  font-size:clamp(52px,9vw,128px);
  font-weight:800;line-height:1.06;letter-spacing:.02em;
  margin-bottom:28px;
}
.hero-title .line{display:block}
.hero-title .grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:clamp(16px,2vw,21px);color:var(--muted);
  max-width:640px;margin-bottom:44px;
}
.hero-actions{display:flex;gap:18px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 34px;border-radius:999px;font-size:15px;letter-spacing:.06em;
  transition:transform .25s, box-shadow .25s, background .25s, border-color .25s;
  border:1px solid transparent;
}
.btn-primary{
  background:var(--grad);color:#fff;font-weight:600;
  box-shadow:0 8px 30px -8px rgba(79,125,255,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px -8px rgba(139,92,246,.6)}
.btn-ghost{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:rgba(255,255,255,.28);transform:translateY(-2px)}

.hero-scroll{
  position:absolute;left:5vw;bottom:34px;
  font-family:var(--mono);font-size:11px;letter-spacing:.34em;color:var(--muted-2);
  display:flex;align-items:center;gap:12px;
}
.hero-scroll .line{
  width:1px;height:46px;background:linear-gradient(var(--accent),transparent);
  animation:drop 2s ease-in-out infinite;
}
@keyframes drop{
  0%{transform:scaleY(0);transform-origin:top}
  45%{transform:scaleY(1);transform-origin:top}
  55%{transform:scaleY(1);transform-origin:bottom}
  100%{transform:scaleY(0);transform-origin:bottom}
}

/* ---------------- 通用区块 ---------------- */
.section{position:relative;z-index:1;padding:120px 5vw}
.section-head{margin-bottom:60px;max-width:1200px;margin-left:auto;margin-right:auto}
.section-index{
  font-family:var(--mono);font-size:13px;letter-spacing:.3em;color:var(--accent-3);
}
.section-head h2{
  font-size:clamp(34px,5vw,56px);font-weight:800;letter-spacing:.04em;
  margin:12px 0 14px;
}
.section-sub{color:var(--muted);font-size:16px}

/* ---------------- 服务能力 ---------------- */
.services-section{background:var(--bg-2);border-top:1px solid var(--line)}
.services-grid{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.service-card{
  position:relative;padding:34px 30px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--line);
  overflow:hidden;transition:transform .3s ease, border-color .3s ease, background .3s ease;
}
.service-card::before{
  content:"";position:absolute;inset:0;opacity:0;transition:opacity .35s;
  background:radial-gradient(600px 200px at 30% 0%,rgba(79,125,255,.14),transparent 70%);
}
.service-card:hover{transform:translateY(-4px);border-color:rgba(79,125,255,.4)}
.service-card:hover::before{opacity:1}
.service-icon{
  width:52px;height:52px;border-radius:13px;margin-bottom:22px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
}
.service-icon{color:var(--accent)}.service-icon svg{width:26px;height:26px;stroke:currentColor}
.service-card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.service-card p{color:var(--muted);font-size:14px;line-height:1.8}
.service-card .sv-num{
  position:absolute;top:22px;right:24px;font-family:var(--mono);
  font-size:12px;color:var(--muted-2);letter-spacing:.2em;
}

/* ---------------- 案例集锦 ---------------- */
.cases-grid{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:repeat(2,1fr);gap:26px;
}
.case-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);
  cursor:pointer;transition:transform .35s ease, box-shadow .35s ease;
}
.case-card:hover{transform:translateY(-6px);box-shadow:0 24px 60px -20px rgba(0,0,0,.7)}
.case-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0d0d15}
.case-cover img,.case-cover video{
  width:100%;height:100%;object-fit:cover;
  transition:transform .8s cubic-bezier(.2,.7,.2,1);
}
.case-card:hover .case-cover img,.case-card:hover .case-cover video{transform:scale(1.06)}
.case-cover .play-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.45);backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.25);color:#fff;font-size:13px;
}
.case-cover .page-badge{
  position:absolute;bottom:14px;right:14px;z-index:2;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;
  color:#fff;background:rgba(0,0,0,.45);backdrop-filter:blur(6px);
  padding:5px 10px;border-radius:999px;border:1px solid rgba(255,255,255,.18);
}
.case-body{padding:22px 24px 26px}
.case-title{font-size:21px;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.case-meta{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.case-meta .sep{color:var(--muted-2)}
.case-content{
  margin-top:10px;font-size:14px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
/* 管理模式下卡片上的隐藏按钮 */
.case-hide{
  position:absolute;top:14px;right:14px;z-index:3;
  padding:7px 14px;border-radius:999px;font-size:12px;letter-spacing:.08em;
  background:rgba(10,10,16,.72);border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(8px);color:var(--muted);
  opacity:0;pointer-events:none;transition:.25s;
}
.case-hide:hover{color:#ff6b81;border-color:#ff6b81}
body.manage-mode .case-hide{opacity:1;pointer-events:auto}
body.manage-mode .case-card{outline:1px dashed rgba(255,255,255,.16);outline-offset:4px}

/* 已隐藏案例 */
.hidden-cases{
  max-width:1200px;margin:50px auto 0;padding-top:34px;
  border-top:1px dashed var(--line);
}
.hidden-cases-head{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:20px;color:var(--muted);font-size:13px;letter-spacing:.08em;
}
.hidden-cases-list{display:flex;flex-wrap:wrap;gap:12px}
.hidden-chip{
  display:inline-flex;align-items:center;gap:10px;
  padding:9px 16px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.hidden-chip button{color:var(--accent-3);font-size:13px}
.hidden-chip button:hover{text-decoration:underline}

/* ---------------- 联系我们 ---------------- */
.contact-section{background:var(--bg-2);border-top:1px solid var(--line)}
.contact-grid{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.contact-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:34px 30px;
  transition:transform .3s,border-color .3s;
}
.contact-card:hover{transform:translateY(-4px);border-color:rgba(79,125,255,.4)}
.contact-card .cc-label{
  font-family:var(--mono);font-size:11px;letter-spacing:.3em;color:var(--accent-3);
  margin-bottom:16px;
}
.contact-card .cc-value{font-size:20px;font-weight:700;word-break:break-all}
.contact-card .cc-sub{font-size:13px;color:var(--muted);margin-top:8px}
.qr-box{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;text-align:center;transition:transform .3s,border-color .3s;
}
.qr-box:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.4)}
.qr-box img{
  width:180px;height:180px;margin:0 auto 14px;border-radius:10px;
  background:#fff;padding:6px;
}
.qr-box .qr-label{font-size:14px;color:var(--text);font-weight:600}
.qr-box .qr-hint{font-size:12px;color:var(--muted);margin-top:4px}

/* ---------------- 页脚 ---------------- */
.site-footer{
  position:relative;z-index:1;border-top:1px solid var(--line);
  padding:34px 5vw;
}
.footer-inner{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  color:var(--muted-2);font-size:13px;letter-spacing:.06em;
}
.manage-toggle{
  width:40px;height:40px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;color:var(--muted);transition:.25s;
}
.manage-toggle:hover{color:var(--text);border-color:rgba(255,255,255,.3)}
body.manage-mode .manage-toggle{color:var(--accent-3);border-color:var(--accent-3)}
.footer-hint{font-size:12px}

/* ---------------- 集锦弹窗 ---------------- */
.gallery-modal{
  position:fixed;inset:0;z-index:100;display:none;
  align-items:center;justify-content:center;
}
.gallery-modal.open{display:flex}
.gallery-backdrop{position:absolute;inset:0;background:rgba(4,4,8,.88);backdrop-filter:blur(14px)}
.gallery-shell{
  position:relative;z-index:2;
  width:min(1200px,94vw);max-height:92vh;
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:20px;overflow:hidden;
  box-shadow:0 40px 120px -30px rgba(0,0,0,.9);
  animation:modalIn .35s cubic-bezier(.2,.8,.2,1);
}
@keyframes modalIn{from{opacity:0;transform:translateY(18px) scale(.98)}to{opacity:1;transform:none}}
.gallery-close{
  position:absolute;top:16px;right:16px;z-index:5;
  width:42px;height:42px;border-radius:50%;
  background:rgba(10,10,16,.6);border:1px solid rgba(255,255,255,.2);
  backdrop-filter:blur(8px);font-size:16px;color:#fff;transition:.25s;
}
.gallery-close:hover{background:rgba(255,107,129,.85);transform:rotate(90deg)}
.gallery-nav{
  position:absolute;top:42%;transform:translateY(-50%);z-index:5;
  width:52px;height:52px;border-radius:50%;
  background:rgba(10,10,16,.6);border:1px solid rgba(255,255,255,.2);
  backdrop-filter:blur(8px);color:#fff;font-size:28px;line-height:1;
  transition:.25s;
}
.gallery-nav.prev{left:18px}
.gallery-nav.next{right:18px}
.gallery-nav:hover{background:var(--accent);border-color:var(--accent)}
.gallery-nav:disabled{opacity:.25;pointer-events:none}

.gallery-stage{
  position:relative;flex:1;min-height:0;
  background:#05050a;display:flex;align-items:center;justify-content:center;
}
.gallery-stage .page{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .35s ease;
  padding:0 84px;
}
.gallery-stage .page.active{opacity:1;pointer-events:auto}
.gallery-stage img{max-width:100%;max-height:100%;object-fit:contain;border-radius:6px}
.gallery-stage video{max-width:100%;max-height:100%;outline:none}

.gallery-info{
  padding:22px 28px 24px;border-top:1px solid var(--line);
  background:var(--surface);
}
.gallery-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.gallery-title-row h3{font-size:22px;font-weight:700}
.hide-btn{
  flex-shrink:0;padding:8px 18px;border-radius:999px;font-size:12px;letter-spacing:.06em;
  background:rgba(255,107,129,.1);border:1px solid rgba(255,107,129,.4);
  color:#ff8fa0;transition:.25s;
}
.hide-btn:hover{background:rgba(255,107,129,.2)}
.gallery-meta{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:10px;font-size:13px;color:var(--muted);
}
.dot-sep{color:var(--muted-2)}
.gallery-content{margin-top:12px;font-size:14px;color:var(--muted);line-height:1.9}
.gallery-pager{
  margin-top:14px;font-family:var(--mono);font-size:13px;letter-spacing:.2em;color:var(--muted-2);
}
.gallery-pager span{color:var(--text)}

/* ---------------- 入场动画 ---------------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------------- 响应式 ---------------- */
@media (max-width:960px){
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-stage .page{padding:0 66px}
}
@media (max-width:720px){
  .site-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,82vw);
    flex-direction:column;justify-content:center;gap:30px;padding:40px;
    background:rgba(7,7,11,.96);backdrop-filter:blur(20px);
    transform:translateX(100%);transition:transform .35s ease;
    border-left:1px solid var(--line);
  }
  .site-nav.open{transform:none}
  .site-nav a{font-size:20px}
  .nav-toggle{display:flex}
  .section{padding:90px 6vw}
  .cases-grid{grid-template-columns:1fr}
  .services-grid,.contact-grid{grid-template-columns:1fr}
  .hero{padding-top:140px}
  .gallery-nav{width:42px;height:42px;font-size:22px}
  .gallery-nav.prev{left:8px}
  .gallery-nav.next{right:8px}
  .gallery-stage .page{padding:0 56px}
  .footer-hint{display:none}
}