/* ===================== 设计令牌 ===================== */
:root{
  --gold:#d8b66a;
  --gold-bright:#f0d089;
  --gold-deep:#b8923f;
  --purple:#4a1c60;
  --purple-2:#5b2a86;
  --purple-deep:#2c1142;
  --green:#3f9a5a;
  --green-bright:#52b06c;
  --radius:22px;
  --shadow:0 18px 50px -12px rgba(0,0,0,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
}
/* 深色（默认） */
[data-theme="dark"]{
  --bg-grad-a:#1c0d2e;
  --bg-grad-b:#0d0617;
  --card-bg:rgba(34,17,52,.72);
  --card-border:rgba(216,182,106,.28);
  --text:#f4eefb;
  --text-sub:#c7b4dd;
  --text-mute:#9a86b3;
  --front-bg:linear-gradient(160deg,#241433 0%,#170c26 100%);
  --back-bg:linear-gradient(155deg,#5b2a86 0%,#3a1856 45%,#1d0c30 100%);
  --contact-hover:rgba(216,182,106,.12);
  --glass:rgba(255,255,255,.04);
}
/* 浅色 */
[data-theme="light"]{
  --bg-grad-a:#f3eef8;
  --bg-grad-b:#e7ddf0;
  --card-bg:rgba(255,255,255,.86);
  --card-border:rgba(91,42,134,.18);
  --text:#241135;
  --text-sub:#5a4470;
  --text-mute:#8a76a0;
  --front-bg:linear-gradient(160deg,#ffffff 0%,#f6f1fb 100%);
  --back-bg:linear-gradient(155deg,#5b2a86 0%,#3a1856 45%,#23103a 100%);
  --contact-hover:rgba(91,42,134,.08);
  --glass:rgba(91,42,134,.04);
}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  background:radial-gradient(120% 120% at 50% 0%,var(--bg-grad-a) 0%,var(--bg-grad-b) 70%);
  color:var(--text);
  min-height:100vh;
  padding:env(safe-area-inset-top) 16px calc(env(safe-area-inset-bottom) + 28px);
  display:flex;flex-direction:column;align-items:center;
  transition:background .5s var(--ease),color .4s var(--ease);
  overflow-x:hidden;
}

/* ===================== 加载动画 ===================== */
#loader{
  position:fixed;inset:0;z-index:9999;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;
  background:radial-gradient(120% 120% at 50% 30%,#2a1342 0%,#0c0518 75%);
  transition:opacity .6s var(--ease),visibility .6s;
}
#loader.hide{opacity:0;visibility:hidden}
.loader-logo{position:relative;width:120px;height:120px;display:grid;place-items:center}
.loader-logo img{width:96px;height:96px;border-radius:50%;animation:spinSlow 3.2s linear infinite,floatY 2.6s ease-in-out infinite}
.loader-ring{position:absolute;inset:0;border-radius:50%;border:2px solid transparent;border-top-color:var(--gold-bright);border-right-color:var(--gold);animation:spin 1s linear infinite}
.loader-text{color:var(--gold-bright);letter-spacing:.18em;font-size:14px;font-weight:600;opacity:.9;animation:pulse 1.8s ease-in-out infinite}

/* ===================== 顶部控制 ===================== */
.topbar{position:fixed;top:calc(env(safe-area-inset-top) + 12px);right:16px;z-index:60;display:flex;gap:10px}
.icon-btn{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--card-border);
  background:var(--card-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  color:var(--gold-bright);cursor:pointer;display:grid;place-items:center;
  transition:transform .25s var(--ease),background .3s;
}
.icon-btn:hover{transform:translateY(-2px) scale(1.05)}
.icon-btn:active{transform:scale(.94)}
.icon-btn svg{fill:currentColor;stroke:currentColor}
.lang-btn{width:auto;padding:0 12px;font-size:12px;font-weight:700;letter-spacing:.04em}
.ic-sun{display:none}
[data-theme="light"] .ic-moon{display:none}
[data-theme="light"] .ic-sun{display:block}

/* ===================== 名片容器 ===================== */
.card-wrap{width:100%;max-width:430px;display:flex;flex-direction:column;gap:18px;margin-top:72px;
  opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.card-wrap.in{opacity:1;transform:none}

.card{
  position:relative;border-radius:var(--radius);box-shadow:var(--shadow);
  border:1px solid var(--card-border);overflow:hidden;
}

/* ===================== 正面 ===================== */
.card-front{background:var(--front-bg);padding:26px 24px 22px}
.card-front::before{content:"";position:absolute;inset:0;background:
  radial-gradient(60% 50% at 85% 0%,rgba(216,182,106,.10),transparent 60%);pointer-events:none}
.front-head{display:flex;align-items:center;gap:16px}
.logo-orb{position:relative;flex:0 0 auto;width:84px;height:84px;display:grid;place-items:center}
.bagua-logo{width:78px;height:78px;border-radius:50%;display:block;position:relative;z-index:2;
  animation:spinSlow 26s linear infinite;filter:drop-shadow(0 4px 10px rgba(0,0,0,.4))}
.orb-glow{position:absolute;inset:-6px;border-radius:50%;
  background:radial-gradient(circle,rgba(216,182,106,.45),transparent 65%);
  animation:breathe 3.6s ease-in-out infinite;z-index:1}
.company-block{min-width:0}
.company-cn{font-size:19px;font-weight:800;line-height:1.3;color:var(--gold-bright);letter-spacing:.01em}
.company-en{font-size:9.5px;letter-spacing:.04em;color:var(--text-mute);margin-top:5px;line-height:1.4}

.divider{height:1px;margin:18px 0 16px;background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.55}

.person-block{margin-bottom:18px}
.person-name{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.name-cn{font-size:30px;font-weight:900;color:var(--text);letter-spacing:.06em}
.name-en{font-size:12px;color:var(--text-mute);letter-spacing:.06em}
.person-title{margin-top:8px;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.title-cn{color:var(--gold-bright);font-weight:700;font-size:15px}
.title-en{color:var(--text-mute);font-size:10.5px;letter-spacing:.08em}

.contact-list{list-style:none;display:flex;flex-direction:column;gap:2px}
.contact-link{
  display:grid;grid-template-columns:30px 56px 1fr;align-items:center;gap:8px;
  padding:9px 8px;border-radius:12px;text-decoration:none;color:var(--text);
  transition:background .25s var(--ease),transform .2s;
}
.contact-link:hover{background:var(--contact-hover);transform:translateX(3px)}
.contact-link:active{transform:scale(.985)}
.contact-link .ci{font-size:15px;text-align:center;filter:saturate(.9)}
.contact-link .ck{font-size:10px;font-weight:700;color:var(--gold);letter-spacing:.06em}
.contact-link .cv{font-size:13px;color:var(--text-sub);word-break:break-all}

.front-foot{display:flex;align-items:flex-end;justify-content:space-between;margin-top:18px;gap:12px}
.brand-tag{color:var(--green-bright);font-weight:700;font-size:14px;letter-spacing:.02em}
.qr-mini{display:flex;flex-direction:column;align-items:center;gap:3px}
.qr-mini img{width:74px;height:74px;border-radius:8px;border:2px solid var(--gold);background:#fff;padding:2px;
  cursor:pointer;transition:transform .3s var(--ease)}
.qr-mini img:hover{transform:scale(1.06)}
.qr-cap{font-size:9px;color:var(--text-mute);letter-spacing:.1em}

/* ===================== 操作按钮 ===================== */
.actions{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.act{
  display:flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 10px;border-radius:15px;border:1px solid var(--card-border);
  background:var(--card-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  color:var(--text);font-size:14px;font-weight:700;cursor:pointer;text-decoration:none;
  transition:transform .22s var(--ease),box-shadow .3s,background .3s;
}
.act:hover{transform:translateY(-3px);box-shadow:0 10px 26px -10px rgba(216,182,106,.5)}
.act:active{transform:scale(.96)}
.act .act-ic{font-size:17px}
.act.primary{
  grid-column:1 / -1;color:#1a0c2a;border:none;
  background:linear-gradient(120deg,var(--gold-bright),var(--gold),var(--gold-deep));
  box-shadow:0 12px 30px -10px rgba(216,182,106,.6);
}
.act.primary:hover{box-shadow:0 16px 38px -10px rgba(240,208,137,.7)}

/* ===================== 背面 ===================== */
.card-back{background:var(--back-bg);padding:30px 24px 26px;text-align:center;color:#f4eafc}
.card-back::before{content:"";position:absolute;inset:0;
  background:radial-gradient(70% 50% at 50% 18%,rgba(216,182,106,.16),transparent 60%);pointer-events:none}
.back-logo{position:relative;width:130px;height:130px;margin:0 auto 16px;display:grid;place-items:center}
.bagua-logo-lg{width:118px;height:118px;border-radius:50%;position:relative;z-index:2;
  animation:spinSlow 30s linear infinite;filter:drop-shadow(0 6px 16px rgba(0,0,0,.5))}
.back-glow{position:absolute;inset:-10px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,208,137,.5),transparent 62%);
  animation:breathe 4s ease-in-out infinite}
.back-company{font-size:21px;font-weight:800;color:#fff;letter-spacing:.02em;text-shadow:0 2px 8px rgba(0,0,0,.3)}
.back-brand-en{margin-top:8px;font-size:15px;font-weight:700;letter-spacing:.14em;
  background:linear-gradient(90deg,var(--gold),var(--gold-bright),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent}

.biz-tags{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:8px 10px;margin:20px 0 4px}
.biz-tags li{font-size:12.5px;color:var(--gold-bright);font-weight:600;
  padding:6px 12px;border:1px solid rgba(216,182,106,.45);border-radius:30px;
  background:rgba(216,182,106,.07)}

.mission{margin:24px 0 18px;position:relative}
.mission::before,.mission::after{content:"";position:absolute;left:14%;right:14%;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.5}
.mission::before{top:-12px}.mission::after{bottom:-10px}
.mission-cn{font-size:23px;font-weight:900;letter-spacing:.1em;
  background:linear-gradient(90deg,var(--gold-deep),var(--gold-bright),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.mission-en{margin-top:8px;font-size:10.5px;letter-spacing:.1em;color:#d8c8ec}

.ipo-badge{margin-top:14px;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--gold-bright)}

/* ===================== 页脚 ===================== */
.page-foot{text-align:center;margin-top:8px;color:var(--text-mute);font-size:10.5px;line-height:1.7}
.foot-geo{opacity:.8}

/* ===================== 分享面板 ===================== */
.sheet-mask{position:fixed;inset:0;z-index:200;background:rgba(8,4,16,.6);
  backdrop-filter:blur(4px);display:flex;align-items:flex-end;justify-content:center;
  animation:fadeIn .3s var(--ease)}
.sheet-mask[hidden]{display:none}
.sheet{width:100%;max-width:430px;background:var(--front-bg);
  border:1px solid var(--card-border);border-radius:24px 24px 0 0;padding:24px 22px calc(env(safe-area-inset-bottom) + 22px);
  animation:slideUp .4s var(--ease)}
.sheet h3{font-size:16px;color:var(--gold-bright);text-align:center;margin-bottom:18px}
.share-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.sh{display:flex;flex-direction:column;align-items:center;gap:7px;padding:14px 6px;
  border:1px solid var(--card-border);border-radius:16px;background:var(--glass);
  color:var(--text);font-size:12px;cursor:pointer;transition:transform .2s var(--ease),background .3s}
.sh span{font-size:24px}
.sh:hover{transform:translateY(-3px);background:var(--contact-hover)}
.sh:active{transform:scale(.95)}
.sheet-close{width:100%;margin-top:18px;padding:13px;border:none;border-radius:14px;
  background:var(--glass);color:var(--text-sub);font-size:14px;font-weight:700;cursor:pointer}

/* ===================== 微信提示 ===================== */
.wechat-tip[hidden]{display:none}
.wechat-tip{position:fixed;top:14px;right:14px;left:14px;z-index:300;
  background:rgba(12,6,22,.94);border:1px solid var(--gold);border-radius:16px;
  padding:18px 18px 18px;color:#f4eafc;text-align:right;animation:fadeIn .3s}
.wt-arrow{font-size:26px;color:var(--gold-bright);text-align:right;animation:bounceY 1.2s infinite}
.wechat-tip p{font-size:13px;margin-top:6px;line-height:1.6;text-align:right;color:#e6d8f5}

/* ===================== Toast ===================== */
.toast[hidden]{display:none}
.toast{position:fixed;bottom:38px;left:50%;transform:translateX(-50%) translateY(20px);
  z-index:400;background:rgba(12,6,22,.95);color:var(--gold-bright);
  padding:12px 22px;border-radius:30px;font-size:13.5px;border:1px solid var(--card-border);
  opacity:0;transition:opacity .3s,transform .3s var(--ease);box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ===================== 动画 ===================== */
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes spinSlow{to{transform:rotate(360deg)}}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@keyframes breathe{0%,100%{opacity:.5;transform:scale(1)}50%{opacity:.95;transform:scale(1.08)}}
@keyframes pulse{0%,100%{opacity:.55}50%{opacity:1}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{transform:translateY(40px);opacity:.5}to{transform:none;opacity:1}}
@keyframes bounceY{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

/* ===================== 响应式 ===================== */
@media(min-width:480px){
  .name-cn{font-size:33px}
  .company-cn{font-size:20px}
}
@media(min-width:760px){
  .card-wrap{max-width:880px;display:grid;grid-template-columns:1fr 1fr;gap:20px;
    grid-template-areas:"front back" "actions actions" "foot foot";align-items:start}
  .card-front{grid-area:front}
  .card-back{grid-area:back;display:flex;flex-direction:column;justify-content:center}
  .actions{grid-area:actions;grid-template-columns:repeat(4,1fr)}
  .act.primary{grid-column:auto}
  .page-foot{grid-area:foot}
  .sheet{border-radius:24px;margin-bottom:auto;align-self:center}
  .sheet-mask{align-items:center}
}

/* ── 免费创建名片CTA ── */
.cta-section {
  text-align: center;
  padding: 24px 20px 8px;
}
.cta-btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 28px;
  background: linear-gradient(135deg, #e94560, #c0392b);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.5px;
  box-shadow: 0 6px 20px rgba(233,69,96,0.4);
  transition: all 0.25s ease;
}
.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(233,69,96,0.5);
}
.cta-sub {
  font-size: 11px;
  color: #888;
  margin-top: 8px;
}