/* ============================================================
   2026 上海法兰克福展会 - 独立落地页样式
   设计基准: 原型 index.html + 落地页示意图
   ============================================================ */
:root {
  --maroon: #8C2B25;
  --maroon-dark: #6E1F1B;
  --gold: #CDA200;
  --gold-light: #E6C34A;
  --bg: #FAF8F5;
  --card: #FFFFFF;
  --text: #333333;
  --muted: #777777;
  --shadow: 0 6px 24px rgba(140, 43, 37, .08);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
  color: var(--text); background: var(--bg); line-height: 1.7;
}

/* ===== 顶部导航 (独立落地页自带, 不用官网模板) ===== */
.expo-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.expo-nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.expo-nav-logos { display: flex; align-items: center; gap: 14px; }
.expo-nav-logos img { height: 34px; }
.expo-nav-links { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.expo-nav-links a {
  color: var(--text); text-decoration: none; font-size: 15px; padding: 8px 14px; transition: .2s;
}
.expo-nav-links a:hover { background: #F3EDE4; color: var(--maroon); }
.expo-nav-links .nav-cta {
  background: var(--maroon); color: #fff !important; font-weight: bold;
}
.expo-nav-links .nav-cta:hover { background: var(--maroon-dark) !important; }
.expo-nav-links .lang-switch {
  font-weight: bold; border: 1.5px solid var(--gold); color: #9A7B00 !important;
}
.expo-nav-links .lang-switch:hover { background: #F7EFD9; }

/* ===== Banner (示意图同款: 展台背景图 + 酒红蒙版 + 左侧文字) ===== */
.expo-hero {
  position: relative;
  background: url(/cn/static/images/expo/banner-bg.png) center center / cover no-repeat;
  padding: 80px 24px 90px;
  color: #fff;
}
.expo-hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(140,43,37,.88) 0%, rgba(140,43,37,.55) 50%, rgba(140,43,37,.0) 100%);
}
.expo-hero-inner {
  position: relative; max-width: 1200px; margin: 0 auto;
}
.expo-kicker { font-size: 13px; letter-spacing: 4px; color: var(--gold-light); font-weight: bold; }
.expo-hero h1 { font-size: clamp(28px, 3.5vw, 42px); margin: 14px 0 8px; font-weight: 700; }
.expo-meta { font-size: 16px; color: #F3D9D6; margin-bottom: 32px; }
.expo-meta b { color: var(--gold-light); }

/* 四大亮点 - 编号列表式 (示意图同款) */
.expo-hl { list-style: none; display: grid; gap: 14px; margin-bottom: 40px; max-width: 760px; }
.expo-hl li { display: flex; gap: 16px; align-items: flex-start; border-bottom: 1px solid rgba(255,255,255,.15); padding-bottom: 14px; }
.expo-hl li:last-child { border-bottom: none; padding-bottom: 0; }
.expo-hl .hl-num {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 50%;
  background: rgba(205,162,0,.25); border: 1px solid var(--gold-light);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold-light); font-weight: bold; font-size: 15px; letter-spacing: 1px;
}
.expo-hl .hl-text strong { display: block; font-size: 18px; margin-bottom: 2px; }
.expo-hl .hl-text span { font-size: 14px; color: #F3D9D6; line-height: 1.55; }

/* CTA 按钮 (示意图同款) */
.btn-cta {
  display: inline-block; background: #fff; color: var(--maroon);
  font-size: 16px; font-weight: bold; padding: 14px 42px;
  text-decoration: none; box-shadow: 0 8px 20px rgba(0,0,0,.22);
  transition: .25s; letter-spacing: 1px;
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0,0,0,.3); }

/* ===== 通用 Section ===== */
/* 内容宽 = 1248 - 24*2 = 1200，与 .expo-live-inner 对齐 */
.expo-section { max-width: 1248px; margin: 0 auto; padding: 80px 24px 30px; }
.expo-sec-head { text-align: center; margin-bottom: 50px; }
.expo-sec-head .en { font-size: 13px; letter-spacing: 4px; color: var(--gold); font-weight: bold; text-transform: uppercase; }
.expo-sec-head h2 { font-size: 32px; color: var(--maroon); margin: 8px 0 4px; }

/* ===== 展会信息 (4 张卡片, 轻量) ===== */
.expo-info-grid {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}
.expo-info-card {
  background: var(--card); padding: 26px 22px;
  border-top: 4px solid var(--maroon); border-radius: 0;
  box-shadow: var(--shadow);
}
.expo-info-card .ic-tag {
  display: inline-block; font-size: 11px; letter-spacing: 3px; color: var(--gold);
  font-weight: bold; margin-bottom: 8px;
}
.expo-info-card .ic-val { font-size: 16px; color: var(--maroon); font-weight: bold; line-height: 1.5; }

/* ===== 活动 & 礼品 ===== */
.expo-act-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.expo-act-card {
  background: var(--card); padding: 34px 30px;
  border-radius: 0; box-shadow: var(--shadow);
  border: 1px solid #F0E9DD; position: relative; overflow: hidden;
  transition: .25s;
}
.expo-act-card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--maroon), var(--gold));
}
.expo-act-card:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(140,43,37,.13); }
.expo-act-card.vip { grid-column: 1 / -1; background: var(--maroon); border-color: var(--maroon); }
.expo-act-card.vip::before { background: var(--gold); }
.expo-act-card h3 { color: var(--maroon); font-size: 20px; margin-bottom: 12px; }
.expo-act-card.vip h3 { color: #fff; }
.expo-act-card .row { margin-bottom: 8px; font-size: 14px; color: var(--muted); }
.expo-act-card .row b { color: var(--text); }
.expo-act-card.vip .row { color: #F3D9D6; }
.expo-act-card.vip .row b { color: var(--gold-light); }
.expo-act-card .note {
  background: #FBF7F2; border-left: 3px solid var(--gold); padding: 10px 14px;
  font-size: 13px; color: var(--muted); margin-top: 12px;
}
.expo-act-card.vip .note { background: rgba(255,255,255,.1); border-left-color: var(--gold-light); color: #F3D9D6; }

/* ===== 直播 (通屏浅色区) ===== */
.expo-live { max-width: none; background: #FAF6EF; padding: 80px 24px 70px; margin-top: 30px; }
.expo-live-inner { max-width: 1200px; margin: 0 auto; }
.expo-live-wrap {
  background: #fff; border: 1px solid #F0E9DD; border-radius: 12px;
  padding: 46px 40px;
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 36px; align-items: center;
  box-shadow: 0 8px 28px rgba(140,43,37,.08);
}
.expo-live-wrap h3 { font-size: 22px; margin-bottom: 18px; color: var(--maroon); font-weight: 700; }
.live-dot {
  display: inline-block; width: 12px; height: 12px; background: #FF5A5A; border-radius: 50%;
  margin-right: 10px; animation: blink 1.2s infinite;
}
@keyframes blink { 50% { opacity: .25; } }
.expo-live-facts { display: grid; gap: 12px; }
.expo-live-fact {
  background: #FBF7F2; border: 1px solid #F0E9DD; border-left: 3px solid var(--gold);
  padding: 14px 18px; font-size: 14px; color: var(--text);
}
.expo-live-fact b { color: var(--maroon); }
/* 右侧: 纯白底, 突出展示二维码 */
.expo-live-right {
  position: relative;
  background: #fff;
  border-radius: 0 12px 12px 0;
  min-height: 280px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 30px 20px;
}
.expo-live-right .qr-card {
  background: #fff; border-radius: 6px;
  padding: 14px; box-shadow: 0 6px 20px rgba(0,0,0,.12);
}
.expo-live-right .qr-card img {
  width: 250px; height: 250px; display: block; object-fit: contain;
}
.expo-live-right p {
  color: var(--maroon); font-size: 15px; font-weight: bold;
  margin-top: 14px; letter-spacing: 1px;
}

/* ===== 注册表单 ===== */
.expo-form-wrap {
  background: var(--card); box-shadow: var(--shadow);
  max-width: none; margin: 0 auto; padding: 46px 44px;
  border-top: 6px solid var(--maroon);
}
.expo-form-intro { text-align: center; color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.expo-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 26px; }
.expo-form-grid .field.full { grid-column: 1 / -1; }
.field { margin-bottom: 22px; }
.field > label.ttl { display: block; font-weight: bold; color: var(--maroon); margin-bottom: 10px; font-size: 15px; }
.field > label.ttl .req { color: #D33; margin-left: 4px; }
input[type="text"], input[type="email"], input[type="tel"], select {
  width: 100%; padding: 12px 14px; border: 1.5px solid #E5DCCB;
  font-size: 14px; font-family: inherit; background: #FBF8F3; outline: none; transition: .18s;
}
input[type="text"]:focus, input[type="email"]:focus, input[type="tel"]:focus, select:focus {
  border-color: var(--maroon); background: #fff;
}
.sub-input { margin-top: 8px; }
.chk-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.opt {
  display: flex; align-items: center; gap: 8px; background: #FBF8F3; border: 1.5px solid #EFE7DA;
  padding: 10px 12px; cursor: pointer; font-size: 14px; transition: .18s; user-select: none;
}
.opt:hover { border-color: var(--gold); }
.opt input { accent-color: var(--maroon); width: 16px; height: 16px; cursor: pointer; }
.opt.checked { border-color: var(--maroon); background: #FBF1EF; color: var(--maroon); font-weight: bold; }
.btn-submit {
  width: 100%; background: var(--maroon); color: #fff;
  border: none; font-size: 16px; font-weight: bold; padding: 14px; cursor: pointer;
  letter-spacing: 2px; transition: .25s; box-shadow: 0 6px 18px rgba(140,43,37,.25);
}
.btn-submit:hover { background: var(--maroon-dark); transform: translateY(-2px); }
.btn-submit:disabled { background: #B0807C; cursor: not-allowed; transform: none; }
.expo-form-msg { text-align: center; margin-top: 16px; font-size: 14px; display: none; }
.expo-form-msg.ok { display: block; color: #1E8E3E; }
.expo-form-msg.err { display: block; color: #D33; }
.expo-form-msg ul { list-style: none; padding: 0; margin-top: 6px; text-align: left; display: inline-block; }

/* ===== 分步向导 ===== */
.expo-steps { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 34px; flex-wrap: wrap; }
.expo-step {
  display: flex; align-items: center; gap: 8px; padding: 7px 16px;
  background: #F5F0E8; color: var(--muted); font-size: 14px; transition: .2s;
}
.expo-step .dot {
  width: 22px; height: 22px; border-radius: 50%; background: #D8CDBC; color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 12.5px; font-weight: bold;
}
.expo-step.active { background: #FBF1EF; color: var(--maroon); font-weight: bold; }
.expo-step.active .dot { background: var(--maroon); }
.expo-step.done { color: var(--maroon); }
.expo-step.done .dot { background: var(--gold); }
.expo-step-panel { display: none; }
.expo-step-panel.active { display: block; }
.expo-step-nav { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 10px; }
.expo-btn-step {
  background: #fff; border: 1.5px solid var(--maroon); color: var(--maroon);
  font-size: 15.5px; font-weight: bold; padding: 13px 36px; cursor: pointer; transition: .2s;
}
.expo-btn-step:hover { background: #FBF1EF; }
.expo-btn-next { background: var(--maroon); color: #fff; margin-left: auto; }
.expo-btn-next:hover { background: var(--maroon-dark); }
.expo-step-nav .btn-submit { width: auto; padding: 13px 44px; font-size: 15.5px; letter-spacing: 1px; box-shadow: none; }
.expo-step-nav .btn-submit:hover { transform: none; box-shadow: 0 6px 18px rgba(140,43,37,.25); }
.success-panel { display: none; text-align: center; padding: 26px 10px; }
.success-panel h3 { color: var(--maroon); font-size: 22px; margin: 12px 0 8px; }
.success-panel p { color: var(--muted); }

/* ===== Footer ===== */
.expo-footer {
  background: #2B211E; color: #CBB9B3; text-align: center; padding: 30px 20px; font-size: 13px; margin-top: 60px;
}
.expo-footer b { color: var(--gold-light); }

/* ===== 响应式 ===== */
@media (max-width: 860px) {
  .expo-hero { padding: 50px 20px 60px; }
  .expo-hero h1 { font-size: 28px; }
  .expo-act-grid { grid-template-columns: 1fr; }
  .expo-live-wrap { grid-template-columns: 1fr; padding: 30px 22px; }
  .expo-form-wrap { padding: 34px 22px; }
  .expo-form-grid { grid-template-columns: 1fr; gap: 0; }
  .expo-step { padding: 6px 12px; font-size: 13px; }
  .expo-step .dot { width: 20px; height: 20px; font-size: 11.5px; }
  .expo-step-nav .expo-btn-step, .expo-step-nav .btn-submit { flex: 1; width: auto; padding: 13px 10px; }
  .expo-nav-links a { padding: 6px 8px; font-size: 14px; }
}