/* ===== 活动页 v2：铂金定制风格 ===== */
/* 设计理念：深色奢华 + 金属质感 + 大留白 + 高端排版 */

/* ---------- 基础重置 ---------- */
.act-v2 * { margin: 0; padding: 0; box-sizing: border-box; }
.act-v2 {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: #080808;
  color: #f0ebe3;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.act-v2 a { text-decoration: none; color: inherit; }

/* ---------- 色彩变量 ---------- */
:root {
  --gold: #c9a96e;
  --gold-light: #e8d5a8;
  --gold-dark: #8a6d3b;
  --bg-deep: #080808;
  --bg-card: #111111;
  --bg-elevated: #1a1a1a;
  --text-primary: #f0ebe3;
  --text-secondary: rgba(240, 235, 227, 0.6);
  --text-muted: rgba(240, 235, 227, 0.35);
  --border: rgba(201, 169, 110, 0.15);
  --border-hover: rgba(201, 169, 110, 0.4);
}

/* ---------- 顶部导航 ---------- */
.act-v2 .top-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
  background: rgba(8, 8, 8, 0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.act-v2 .top-bar.scrolled { background: rgba(8, 8, 8, 0.96); }
.act-v2 .top-logo {
  font-size: 16px; font-weight: 700; letter-spacing: 3px; color: var(--gold);
  text-transform: uppercase;
}
.act-v2 .top-actions { display: flex; gap: 10px; }
.act-v2 .top-btn {
  padding: 6px 16px; border-radius: 999px; font-size: 12px; font-weight: 600;
  letter-spacing: 1px; cursor: pointer; border: 1px solid var(--border);
  background: transparent; color: var(--text-secondary); transition: all 0.25s;
}
.act-v2 .top-btn:hover { border-color: var(--gold); color: var(--gold); }

/* ---------- Hero 区 ---------- */
.act-v2 .hero {
  position: relative; min-height: 100vh; display: flex; align-items: flex-end;
  padding: 0 24px 80px; overflow: hidden;
}
.act-v2 .hero-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  filter: brightness(0.35) contrast(1.1);
  transform: scale(1.05);
  animation: heroBreath 20s ease-in-out infinite alternate;
}
@keyframes heroBreath { from { transform: scale(1.05); } to { transform: scale(1.12); } }
.act-v2 .hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg,
    rgba(8,8,8,0.3) 0%,
    rgba(8,8,8,0.1) 30%,
    rgba(8,8,8,0.6) 70%,
    rgba(8,8,8,0.95) 100%
  );
}
.act-v2 .hero-content {
  position: relative; z-index: 2; max-width: 800px; width: 100%;
}
.act-v2 .hero-tag {
  display: inline-block; padding: 6px 20px; border-radius: 2px;
  border: 1px solid var(--gold); color: var(--gold);
  font-size: 11px; font-weight: 700; letter-spacing: 6px; text-transform: uppercase;
  margin-bottom: 28px;
}
.act-v2 .hero-title {
  font-size: clamp(36px, 8vw, 72px); font-weight: 900; line-height: 1.1;
  letter-spacing: 2px; color: #fff; margin-bottom: 24px;
}
.act-v2 .hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-dark));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.act-v2 .hero-desc {
  font-size: 16px; color: var(--text-secondary); line-height: 1.9;
  max-width: 560px; margin-bottom: 36px;
}

/* 倒计时 */
.act-v2 .countdown { display: flex; gap: 12px; margin-bottom: 40px; }
.act-v2 .cd-item {
  display: flex; flex-direction: column; align-items: center;
  min-width: 64px; padding: 14px 8px;
  background: rgba(201, 169, 110, 0.08);
  border: 1px solid var(--border); border-radius: 4px;
}
.act-v2 .cd-num {
  font-size: 32px; font-weight: 800; color: var(--gold-light);
  font-variant-numeric: tabular-nums; line-height: 1;
}
.act-v2 .cd-unit { font-size: 10px; color: var(--text-muted); letter-spacing: 2px; margin-top: 6px; }

/* CTA 按钮 */
.act-v2 .cta-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 18px 48px; border-radius: 2px; border: none;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #080808; font-size: 16px; font-weight: 800; letter-spacing: 3px;
  cursor: pointer; position: relative; overflow: hidden;
  box-shadow: 0 8px 32px rgba(201, 169, 110, 0.3);
  transition: transform 0.25s, box-shadow 0.25s;
}
.act-v2 .cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(201, 169, 110, 0.45);
}
.act-v2 .cta-btn::after {
  content: ''; position: absolute; top: 0; left: -100%; width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: left 0.6s;
}
.act-v2 .cta-btn:hover::after { left: 150%; }
.act-v2 .cta-arrow { font-size: 20px; transition: transform 0.25s; }
.act-v2 .cta-btn:hover .cta-arrow { transform: translateX(4px); }

/* ---------- 区块通用 ---------- */
.act-v2 .section { padding: 100px 24px; }
.act-v2 .section-head { text-align: center; margin-bottom: 56px; }
.act-v2 .section-tag {
  display: inline-block; font-size: 10px; font-weight: 700;
  letter-spacing: 6px; text-transform: uppercase; color: var(--gold);
  margin-bottom: 16px;
}
.act-v2 .section-title {
  font-size: clamp(28px, 5vw, 42px); font-weight: 900;
  letter-spacing: 2px; color: #fff; line-height: 1.3;
}
.act-v2 .section-title em {
  font-style: normal; color: var(--gold);
}
.act-v2 .section-line {
  width: 48px; height: 2px; margin: 20px auto 0;
  background: linear-gradient(90deg, var(--gold), transparent);
}

/* ---------- 利益点 ---------- */
.act-v2 .benefits {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  max-width: 1080px; margin: 0 auto;
  background: var(--border);
}
.act-v2 .benefit-card {
  background: var(--bg-deep); padding: 48px 32px; text-align: center;
  position: relative; overflow: hidden; transition: background 0.3s;
}
.act-v2 .benefit-card:hover { background: var(--bg-card); }
.act-v2 .benefit-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0; transition: opacity 0.3s;
}
.act-v2 .benefit-card:hover::before { opacity: 1; }
.act-v2 .benefit-num {
  font-size: 48px; font-weight: 900; line-height: 1;
  background: linear-gradient(180deg, var(--gold-light), var(--gold-dark));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 16px;
}
.act-v2 .benefit-text {
  font-size: 15px; font-weight: 600; color: var(--text-primary); letter-spacing: 1px;
}

/* ---------- 优惠明细 ---------- */
.act-v2 .offers-section { background: var(--bg-card); }
.act-v2 .offers-max {
  text-align: center; margin-bottom: 48px;
  padding: 40px 24px; border: 1px solid var(--border); border-radius: 4px;
  background: linear-gradient(135deg, rgba(201,169,110,0.06), rgba(201,169,110,0.02));
}
.act-v2 .offers-max-label {
  font-size: 12px; letter-spacing: 4px; color: var(--text-muted); text-transform: uppercase;
}
.act-v2 .offers-max-value {
  font-size: clamp(36px, 7vw, 56px); font-weight: 900; margin-top: 12px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.act-v2 .offers-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
  max-width: 1080px; margin: 0 auto;
}
.act-v2 .offer-card {
  position: relative; padding: 28px 24px; border-radius: 4px;
  border: 1px solid var(--border); background: var(--bg-deep);
  cursor: pointer; transition: all 0.3s; overflow: hidden;
}
.act-v2 .offer-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}
.act-v2 .offer-card::after {
  content: ''; position: absolute; top: 0; right: 0;
  width: 0; height: 0; border-style: solid;
  border-width: 0 56px 56px 0; border-color: transparent rgba(201,169,110,0.1) transparent transparent;
}
.act-v2 .offer-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.act-v2 .offer-ico { font-size: 24px; }
.act-v2 .offer-name { font-size: 18px; font-weight: 800; color: #fff; letter-spacing: 1px; }
.act-v2 .offer-badge {
  margin-left: auto; padding: 3px 10px; border-radius: 2px; font-size: 10px;
  font-weight: 700; letter-spacing: 1px; background: rgba(201,169,110,0.15); color: var(--gold);
}
.act-v2 .offer-desc {
  font-size: 13px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px;
}
.act-v2 .offer-price-row { display: flex; align-items: baseline; gap: 10px; }
.act-v2 .offer-orig {
  font-size: 13px; color: var(--text-muted); text-decoration: line-through;
}
.act-v2 .offer-save {
  font-size: 28px; font-weight: 900; color: var(--gold-light);
}
.act-v2 .offer-save-tag {
  display: inline-block; padding: 2px 8px; border-radius: 2px; font-size: 10px;
  font-weight: 700; background: rgba(210,52,46,0.2); color: #f05a48; margin-right: 4px;
  vertical-align: 2px;
}
.act-v2 .offer-diff {
  display: inline-block; padding: 3px 10px; border-radius: 2px; font-size: 11px;
  font-weight: 700; background: rgba(127,212,154,0.12); color: #7fd49a; margin-left: 8px;
}
.act-v2 .offer-more {
  display: block; margin-top: 14px; font-size: 12px; font-weight: 700;
  color: var(--gold); letter-spacing: 1px;
}

/* ---------- 图集 ---------- */
.act-v2 .gallery {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px;
  max-width: 1080px; margin: 0 auto;
}
.act-v2 .gallery.single { grid-template-columns: 1fr; }
.act-v2 .gallery img {
  width: 100%; border-radius: 4px; object-fit: cover; max-height: 400px;
  cursor: zoom-in; transition: transform 0.3s, filter 0.3s;
  filter: brightness(0.9);
}
.act-v2 .gallery img:hover { transform: scale(1.02); filter: brightness(1); }
.act-v2 .gallery-more-btn {
  display: block; margin: 24px auto 0; padding: 12px 36px;
  border: 1px solid var(--border); border-radius: 2px;
  background: transparent; color: var(--gold); font-size: 13px;
  font-weight: 700; letter-spacing: 2px; cursor: pointer; transition: all 0.25s;
}
.act-v2 .gallery-more-btn:hover { background: var(--gold); color: #080808; }

/* ---------- 活动说明 ---------- */
.act-v2 .desc-section {
  max-width: 720px; margin: 0 auto; padding: 80px 24px;
  font-size: 15px; color: var(--text-secondary); line-height: 2;
  white-space: pre-line; text-align: center;
}

/* ---------- 信任数据 ---------- */
.act-v2 .trust {
  background: var(--bg-card); border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.act-v2 .trust-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  max-width: 1080px; margin: 0 auto; background: var(--border);
}
.act-v2 .trust-item {
  background: var(--bg-card); padding: 40px 16px; text-align: center;
}
.act-v2 .trust-num {
  font-size: 42px; font-weight: 900; line-height: 1;
  background: linear-gradient(180deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.act-v2 .trust-num small { font-size: 18px; font-weight: 700; }
.act-v2 .trust-label {
  font-size: 12px; color: var(--text-muted); letter-spacing: 2px; margin-top: 10px;
}

/* ---------- 报名表单 ---------- */
.act-v2 .form-section { background: var(--bg-deep); }
.act-v2 .form-wrap {
  max-width: 520px; margin: 0 auto;
}
.act-v2 .quota-bar {
  text-align: center; margin-bottom: 24px;
  padding: 16px; border: 1px solid var(--border); border-radius: 4px;
  background: rgba(201,169,110,0.04);
}
.act-v2 .quota-txt { font-size: 13px; color: var(--text-secondary); letter-spacing: 1px; }
.act-v2 .quota-txt b { color: var(--gold); font-size: 18px; font-weight: 800; }
.act-v2 .quota-track {
  height: 3px; background: rgba(201,169,110,0.1); border-radius: 999px;
  margin-top: 12px; overflow: hidden;
}
.act-v2 .quota-fill {
  height: 100%; border-radius: 999px; transition: width 0.8s ease;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold-light));
}
.act-v2 .voucher {
  text-align: center; padding: 14px; margin-bottom: 24px;
  background: linear-gradient(135deg, rgba(201,169,110,0.12), rgba(201,169,110,0.04));
  border: 1px solid var(--border); border-radius: 4px;
  font-size: 14px; font-weight: 700; color: var(--gold); letter-spacing: 1px;
}
.act-v2 .act-form {
  display: flex; flex-direction: column; gap: 14px;
}
.act-v2 .act-form input, .act-v2 .act-form textarea {
  width: 100%; padding: 16px 18px; border-radius: 4px; font-size: 15px;
  font-family: inherit; border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text-primary);
  transition: border-color 0.25s;
}
.act-v2 .act-form input:focus, .act-v2 .act-form textarea:focus {
  outline: none; border-color: var(--gold);
}
.act-v2 .act-form input::placeholder, .act-v2 .act-form textarea::placeholder {
  color: var(--text-muted);
}
.act-v2 .submit-btn {
  padding: 18px; border: none; border-radius: 2px; font-size: 16px;
  font-weight: 800; letter-spacing: 4px; cursor: pointer;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #080808; box-shadow: 0 8px 32px rgba(201,169,110,0.25);
  transition: transform 0.25s, box-shadow 0.25s;
}
.act-v2 .submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(201,169,110,0.4);
}
.act-v2 .form-ok {
  text-align: center; padding: 20px; border-radius: 4px;
  background: rgba(127,212,154,0.08); border: 1px solid rgba(127,212,154,0.2);
  color: #7fd49a; font-weight: 700;
}
.act-v2 .form-err {
  text-align: center; font-size: 13px; color: #f05a48; padding: 10px;
}
.act-v2 .form-success {
  text-align: center; color: #7fd49a; font-weight: 700; font-size: 16px; margin-bottom: 12px;
}
.act-v2 .form-next-steps {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 4px;
  padding: 16px; font-size: 14px; color: var(--text-secondary); line-height: 1.9;
}
.act-v2 .form-next-steps p { margin: 4px 0; }
.act-v2 .form-next-steps strong { color: var(--gold); font-weight: 700; }
.act-v2 .form-return-btn {
  display: block; width: 100%; margin-top: 16px; padding: 14px;
  border: 1px solid var(--border); border-radius: 2px;
  background: transparent; color: var(--text-secondary);
  font-size: 14px; font-weight: 700; letter-spacing: 2px; cursor: pointer;
  transition: all 0.25s;
}
.act-v2 .form-return-btn:hover { border-color: var(--gold); color: var(--gold); }
.act-v2 .back-top-btn {
  display: block; width: 100%; margin-top: 14px; padding: 13px;
  border: 1px solid var(--border); border-radius: 2px;
  background: transparent; color: var(--text-muted);
  font-size: 13px; font-weight: 700; letter-spacing: 2px; cursor: pointer;
  transition: all 0.25s;
}
.act-v2 .back-top-btn:hover { border-color: var(--gold); color: var(--gold); }

/* ---------- 页脚 ---------- */
.act-v2 .footer {
  padding: 32px 24px; text-align: center;
  border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-muted); letter-spacing: 1px;
}

/* ---------- 弹窗 ---------- */
.act-v2 .offer-modal {
  position: fixed; inset: 0; z-index: 200; display: flex;
  align-items: center; justify-content: center; padding: 20px;
}
.act-v2 .offer-modal[hidden] { display: none; }
.act-v2 .modal-backdrop {
  position: absolute; inset: 0; background: rgba(0,0,0,0.75);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.act-v2 .modal-panel {
  position: relative; width: 100%; max-width: 480px; max-height: 86vh;
  overflow: auto; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; padding: 32px 28px;
  box-shadow: 0 40px 100px rgba(0,0,0,0.6);
  animation: modalIn 0.3s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to { opacity: 1; transform: none; }
}
.act-v2 .modal-close {
  position: absolute; top: 16px; right: 16px; width: 36px; height: 36px;
  border: 1px solid var(--border); border-radius: 50%; background: transparent;
  color: var(--text-secondary); font-size: 16px; cursor: pointer; transition: all 0.25s;
}
.act-v2 .modal-close:hover { border-color: var(--gold); color: var(--gold); }
.act-v2 .modal-head { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.act-v2 .modal-ico { font-size: 32px; }
.act-v2 .modal-name { font-size: 20px; font-weight: 800; color: #fff; }
.act-v2 .modal-badge {
  display: inline-block; margin-top: 6px; padding: 3px 10px; border-radius: 2px;
  font-size: 10px; font-weight: 700; background: rgba(201,169,110,0.15); color: var(--gold);
}
.act-v2 .modal-body { font-size: 14px; color: var(--text-secondary); line-height: 1.9; }
.act-v2 .modal-detail {
  margin-top: 16px; padding: 16px; border-radius: 4px;
  background: rgba(201,169,110,0.04); border: 1px solid var(--border);
  font-size: 13px; line-height: 1.9; color: var(--text-secondary); white-space: pre-line;
}
.act-v2 .modal-phone {
  margin-top: 16px; padding: 12px 16px; border-radius: 4px;
  background: rgba(201,169,110,0.06); border: 1px dashed var(--border);
  color: var(--gold); font-size: 14px; font-weight: 700; letter-spacing: 1px;
}
.act-v2 .modal-actions { display: flex; gap: 10px; margin-top: 24px; }
.act-v2 .modal-actions button {
  flex: 1; padding: 14px; border: none; border-radius: 2px;
  font-size: 14px; font-weight: 800; letter-spacing: 2px; cursor: pointer;
  transition: all 0.25s;
}
.act-v2 .btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #080808;
}
.act-v2 .btn-secondary {
  background: transparent; border: 1px solid var(--border) !important;
  color: var(--text-secondary);
}
.act-v2 .btn-secondary:hover { border-color: var(--gold) !important; color: var(--gold); }

/* ---------- Lightbox ---------- */
.act-v2 .lightbox {
  position: fixed; inset: 0; z-index: 210; background: rgba(0,0,0,0.95);
  display: flex; align-items: center; justify-content: center;
}
.act-v2 .lightbox[hidden] { display: none; }
.act-v2 .lightbox img { max-width: 90vw; max-height: 86vh; border-radius: 4px; }
.act-v2 .lb-btn {
  position: absolute; width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15); background: rgba(0,0,0,0.5);
  color: #fff; font-size: 20px; cursor: pointer; transition: all 0.25s;
}
.act-v2 .lb-btn:hover { border-color: var(--gold); color: var(--gold); }
.act-v2 .lb-close { top: 20px; right: 20px; }
.act-v2 .lb-prev { left: 16px; top: 50%; transform: translateY(-50%); }
.act-v2 .lb-next { right: 16px; top: 50%; transform: translateY(-50%); }
.act-v2 .lb-count {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  font-size: 12px; color: var(--text-muted); letter-spacing: 2px;
}

/* ---------- 浮动按钮 ---------- */
.act-v2 .float-top {
  position: fixed; right: 20px; bottom: 24px; width: 44px; height: 44px;
  border-radius: 50%; border: 1px solid var(--border); background: rgba(8,8,8,0.9);
  color: var(--gold); font-size: 18px; cursor: pointer; z-index: 90;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all 0.3s; backdrop-filter: blur(10px);
}
.act-v2 .float-top.show { opacity: 1; visibility: visible; transform: none; }
.act-v2 .float-top:hover { background: var(--gold); color: #080808; }

/* ---------- 提示条 ---------- */
.act-v2 .fx-tip {
  position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%);
  z-index: 220; padding: 12px 28px; border-radius: 4px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  color: var(--text-primary); font-size: 13px; letter-spacing: 1px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5); white-space: nowrap;
}
.act-v2 .fx-tip[hidden] { display: none; }

/* ---------- 预览条 ---------- */
.act-v2 .preview-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 150;
  background: #d2342e; color: #fff; text-align: center;
  font-size: 12px; font-weight: 700; letter-spacing: 1px; padding: 8px 12px;
}
.act-v2 .preview-bar[hidden] { display: none; }
.act-v2 .preview-back {
  margin-left: 10px; padding: 3px 12px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.5); background: rgba(255,255,255,0.1);
  color: #fff; font-size: 11px; font-weight: 700; cursor: pointer;
}
.act-v2 body.preview-on .top-bar { top: 34px; }

/* ---------- 滚动动画 ---------- */
.act-v2 .reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.act-v2 .reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .act-v2 .benefits { grid-template-columns: 1fr; }
  .act-v2 .offers-grid { grid-template-columns: 1fr; }
  .act-v2 .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .act-v2 .gallery { grid-template-columns: 1fr; }
  .act-v2 .hero { padding: 0 20px 60px; }
  .act-v2 .section { padding: 64px 20px; }
  .act-v2 .cd-num { font-size: 24px; }
  .act-v2 .cd-item { min-width: 52px; padding: 10px 6px; }
  .act-v2 .modal-actions { flex-wrap: wrap; }
  .act-v2 .modal-actions button { flex: 1 1 46%; }
}