/* ===== 设计系统：暗黑霓虹赛博风 ===== */
:root {
  --neon-primary: #ff6b00;
  --neon-gold: #ffd700;
  --neon-cyan: #00f5ff;
  --neon-purple: #bf5af2;
  --neon-green: #39ff14;
  --neon-pink: #ff2d78;

  --bg-void: #050508;
  --bg-deep: #080b12;
  --bg-card: rgba(255,255,255,.04);
  --bg-card-hover: rgba(255,255,255,.08);
  --bg-glass: rgba(255,107,0,.06);

  --border-dim: rgba(255,255,255,.08);
  --border-glow: rgba(255,107,0,.4);

  --text-bright: #ffffff;
  --text-mid: rgba(255,255,255,.7);
  --text-dim: rgba(255,255,255,.4);

  --glow-primary: 0 0 20px rgba(255,107,0,.6), 0 0 60px rgba(255,107,0,.2);
  --glow-cyan: 0 0 20px rgba(0,245,255,.5), 0 0 60px rgba(0,245,255,.15);
  --glow-gold: 0 0 20px rgba(255,215,0,.5);

  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 68px;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Helvetica Neue', sans-serif;
  color: var(--text-bright);
  background: var(--bg-void);
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
input, select, button { font-family: inherit; }
.hidden { display: none !important; }

/* ===== 粒子背景画布 ===== */
#particleCanvas {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: .5;
}

/* ===== 全局噪点纹理叠层 ===== */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  opacity: .4;
}

/* ===== 工具类 ===== */
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }
.bg-gray { background: transparent; }

/* ===== 霓虹文字 ===== */
.neon-text {
  background: linear-gradient(90deg, var(--neon-primary), var(--neon-gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.neon-text-cyan {
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: var(--radius-sm); border: none;
  font-size: 14px; font-weight: 600; cursor: pointer; transition: all .25s;
  white-space: nowrap; position: relative; overflow: hidden; letter-spacing: .3px;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.15) 0%, transparent 60%);
  opacity: 0; transition: opacity .25s;
}
.btn:hover::after { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, var(--neon-primary), #ff9500);
  color: #fff;
  box-shadow: 0 4px 20px rgba(255,107,0,.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
}

.btn-outline {
  background: transparent; color: var(--neon-primary);
  border: 1.5px solid var(--neon-primary);
  box-shadow: inset 0 0 12px rgba(255,107,0,.08);
}
.btn-outline:hover {
  background: rgba(255,107,0,.12);
  box-shadow: 0 0 16px rgba(255,107,0,.3);
  transform: translateY(-1px);
}

.btn-ghost {
  background: var(--bg-card); color: var(--text-mid);
  border: 1px solid var(--border-dim); backdrop-filter: blur(12px);
}
.btn-ghost:hover { background: var(--bg-card-hover); color: var(--text-bright); }

.btn-lg { padding: 16px 40px; font-size: 16px; border-radius: var(--radius); }
.btn-block { width: 100%; }

/* ===== Header ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h);
  background: rgba(5,5,8,.8);
  backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--border-dim);
}
.header::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-primary), transparent);
  opacity: .5;
}
.header .container { display: flex; align-items: center; height: 100%; gap: 32px; }

.logo { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.logo-icon { font-size: 28px; filter: drop-shadow(0 0 8px rgba(255,107,0,.8)); }
.logo-text {
  font-size: 22px; font-weight: 800; letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.nav { display: flex; gap: 2px; flex: 1; }
.nav-link {
  padding: 8px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500;
  color: var(--text-dim); transition: all .2s; cursor: pointer; position: relative;
}
.nav-link::before {
  content: ''; position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px; background: var(--neon-primary); border-radius: 2px;
  transition: width .2s; box-shadow: var(--glow-primary);
}
.nav-link:hover { color: var(--text-bright); background: rgba(255,107,0,.08); }
.nav-link.active { color: var(--neon-primary); }
.nav-link.active::before { width: 60%; }

.header-right { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.user-area { display: flex; gap: 10px; }
.user-logged { display: flex; align-items: center; gap: 14px; }

.user-balance {
  font-size: 13px; color: var(--text-dim);
  background: var(--bg-card); border: 1px solid var(--border-dim);
  padding: 6px 14px; border-radius: 20px; backdrop-filter: blur(8px);
}
.user-balance span { color: var(--neon-gold); font-weight: 700; }

.user-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-gold));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; cursor: pointer; position: relative;
  box-shadow: 0 0 16px rgba(255,107,0,.5);
}
.user-avatar:hover .user-dropdown { display: block; }
.user-dropdown {
  display: none; position: absolute; top: 48px; right: 0; min-width: 160px;
  background: rgba(10,12,20,.95); border: 1px solid var(--border-dim);
  border-radius: var(--radius-sm); overflow: hidden; backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(0,0,0,.8), 0 0 20px rgba(255,107,0,.1);
}
.dropdown-item {
  padding: 13px 18px; font-size: 14px; cursor: pointer; color: var(--text-mid);
  transition: all .15s; border-bottom: 1px solid var(--border-dim);
}
.dropdown-item:last-child { border-bottom: none; }
.dropdown-item:hover { background: rgba(255,107,0,.1); color: var(--neon-primary); padding-left: 24px; }

/* ===== Main ===== */
.main { margin-top: var(--header-h); min-height: calc(100vh - var(--header-h)); }
.page { display: none; }
.page.active { display: block; }

/* ===== Hero Banner ===== */
.banner {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; padding: 80px 20px;
}
.banner-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 120%, rgba(255,107,0,.15) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 80% 20%, rgba(0,245,255,.08) 0%, transparent 50%),
    radial-gradient(ellipse 30% 30% at 20% 80%, rgba(191,90,242,.08) 0%, transparent 50%),
    var(--bg-deep);
}
.banner-grid {
  position: absolute; inset: 0; opacity: .15;
  background-image:
    linear-gradient(rgba(255,107,0,.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,107,0,.3) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 100%, black, transparent);
}
.banner-glow {
  position: absolute; bottom: -20%; left: 50%; transform: translateX(-50%);
  width: 800px; height: 400px; border-radius: 50%;
  background: radial-gradient(ellipse, rgba(255,107,0,.2), transparent 70%);
  filter: blur(40px);
}

.banner-content {
  position: relative; z-index: 2; text-align: center; max-width: 800px;
}
.banner-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,107,0,.1); border: 1px solid rgba(255,107,0,.3);
  color: var(--neon-primary); font-size: 13px; font-weight: 600;
  padding: 6px 18px; border-radius: 20px; margin-bottom: 28px;
  backdrop-filter: blur(8px);
}
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--neon-primary); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:.5; transform:scale(1.5); } }

.banner-content h1 {
  font-size: 72px; font-weight: 900; line-height: 1.05;
  letter-spacing: -2px; margin-bottom: 24px;
}
.banner-content h1 .line1 { display: block; color: var(--text-bright); }
.banner-content h1 .line2 {
  display: block;
  background: linear-gradient(90deg, var(--neon-primary) 0%, var(--neon-gold) 50%, var(--neon-primary) 100%);
  background-size: 200%;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  animation: shimmer 3s linear infinite;
}
@keyframes shimmer { 0% { background-position: 0% } 100% { background-position: 200% } }

.banner-content p { font-size: 18px; color: var(--text-mid); margin-bottom: 48px; line-height: 1.7; }

.banner-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 64px; }
.btn-hero {
  padding: 18px 48px; font-size: 18px; border-radius: 50px; font-weight: 700;
  background: linear-gradient(135deg, var(--neon-primary), #ff9500);
  color: #fff; border: none; cursor: pointer; position: relative;
  box-shadow: 0 8px 32px rgba(255,107,0,.5), inset 0 1px 0 rgba(255,255,255,.2);
  transition: all .3s; letter-spacing: .5px;
}
.btn-hero:hover { transform: translateY(-3px) scale(1.02); box-shadow: var(--glow-primary), 0 20px 60px rgba(255,107,0,.3); }
.btn-hero-outline {
  padding: 17px 48px; font-size: 18px; border-radius: 50px;
  background: transparent; color: var(--text-bright); font-weight: 600;
  border: 1.5px solid rgba(255,255,255,.2); cursor: pointer;
  backdrop-filter: blur(12px); transition: all .3s; letter-spacing: .5px;
}
.btn-hero-outline:hover { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.05); transform: translateY(-2px); }

.banner-stats {
  display: flex; justify-content: center; gap: 0;
  background: rgba(255,255,255,.04); border: 1px solid var(--border-dim);
  border-radius: var(--radius); backdrop-filter: blur(20px); overflow: hidden;
  max-width: 560px; margin: 0 auto;
}
.stat {
  flex: 1; padding: 24px 16px; text-align: center;
  border-right: 1px solid var(--border-dim); position: relative;
}
.stat:last-child { border-right: none; }
.stat-num {
  font-size: 28px; font-weight: 800;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 12px; color: var(--text-dim); margin-top: 4px; }

/* ===== Section ===== */
.section { padding: 80px 0; position: relative; }
.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--neon-primary); margin-bottom: 12px;
}
.section-label::before, .section-label::after {
  content: ''; flex: 1; height: 1px; background: var(--neon-primary); opacity: .4;
}
.section-label::before { width: 20px; }
.section-label::after { width: 20px; }
.section-title {
  font-size: 36px; font-weight: 800; text-align: center; margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.section-subtitle { text-align: center; color: var(--text-dim); font-size: 16px; margin-bottom: 56px; }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 40px; }
.section-header .section-title { margin-bottom: 0; text-align: left; }
.view-all {
  font-size: 13px; color: var(--neon-primary); cursor: pointer; font-weight: 600;
  display: flex; align-items: center; gap: 4px; transition: gap .2s;
}
.view-all:hover { gap: 8px; }

/* ===== 平台卡片 ===== */
.platform-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius); padding: 28px 16px;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  cursor: pointer; transition: all .3s; position: relative; overflow: hidden;
  backdrop-filter: blur(12px);
}
.platform-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(255,107,0,.06) 100%);
  opacity: 0; transition: opacity .3s;
}
.platform-card::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-primary), transparent);
  transform: scaleX(0); transition: transform .3s;
}
.platform-card:hover::before { opacity: 1; }
.platform-card:hover::after { transform: scaleX(1); }
.platform-card:hover {
  border-color: rgba(255,107,0,.4);
  box-shadow: 0 0 30px rgba(255,107,0,.15), inset 0 0 20px rgba(255,107,0,.05);
  transform: translateY(-6px);
}
.platform-icon { font-size: 40px; filter: drop-shadow(0 4px 8px rgba(0,0,0,.4)); transition: transform .3s; }
.platform-card:hover .platform-icon { transform: scale(1.15); }
.platform-name { font-size: 15px; font-weight: 700; color: var(--text-bright); }
.platform-rate {
  font-size: 12px; font-weight: 700;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

/* ===== 商品卡片 ===== */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card {
  background: var(--bg-card); border: 1px solid var(--border-dim);
  border-radius: var(--radius); overflow: hidden; cursor: pointer;
  transition: all .3s; position: relative; backdrop-filter: blur(12px);
}
.product-card::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,107,0,.05) 0%, transparent 60%);
  opacity: 0; transition: opacity .3s;
}
.product-card:hover::after { opacity: 1; }
.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,107,0,.35);
  box-shadow: 0 20px 60px rgba(0,0,0,.5), 0 0 30px rgba(255,107,0,.12);
}
.product-img {
  width: 100%; aspect-ratio: 1;
  background: linear-gradient(135deg, rgba(255,107,0,.08), rgba(0,245,255,.05));
  display: flex; align-items: center; justify-content: center; font-size: 64px;
  position: relative; overflow: hidden;
}
.product-img::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(255,107,0,.1) 0%, transparent 70%);
}
.product-img-emoji { position: relative; z-index: 1; filter: drop-shadow(0 8px 20px rgba(0,0,0,.4)); transition: transform .3s; }
.product-card:hover .product-img-emoji { transform: scale(1.1) rotate(-5deg); }

.product-info { padding: 16px; }
.product-platform {
  font-size: 11px; color: var(--text-dim); font-weight: 600; letter-spacing: 1px;
  text-transform: uppercase; margin-bottom: 8px; display: flex; align-items: center; gap: 4px;
}
.product-name {
  font-size: 13px; font-weight: 500; color: var(--text-mid); margin-bottom: 14px;
  line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.product-price-row { display: flex; align-items: flex-end; justify-content: space-between; }
.product-price { font-size: 24px; font-weight: 800; color: var(--text-bright); }
.product-price .unit { font-size: 14px; color: var(--neon-primary); }
.product-original { font-size: 12px; color: var(--text-dim); text-decoration: line-through; }
.product-rebate {
  font-size: 12px; font-weight: 700;
  background: linear-gradient(135deg, rgba(255,107,0,.15), rgba(255,215,0,.1));
  border: 1px solid rgba(255,107,0,.3);
  color: var(--neon-gold); padding: 4px 10px; border-radius: 6px;
}

/* ===== 步骤流程 ===== */
.steps { display: flex; align-items: flex-start; justify-content: center; gap: 0; }
.step {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  width: 200px; position: relative;
}
.step-icon-wrap {
  width: 72px; height: 72px; border-radius: 50%; position: relative;
  display: flex; align-items: center; justify-content: center;
}
.step-icon-wrap::before {
  content: ''; position: absolute; inset: -2px; border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-gold));
  z-index: 0;
}
.step-icon-wrap::after {
  content: ''; position: absolute; inset: 0; border-radius: 50%;
  background: var(--bg-deep); z-index: 1;
  box-shadow: inset 0 0 20px rgba(255,107,0,.2);
}
.step-icon {
  position: relative; z-index: 2;
  font-size: 26px; font-weight: 900;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.step-title { font-size: 16px; font-weight: 700; color: var(--text-bright); }
.step-desc { font-size: 13px; color: var(--text-dim); text-align: center; line-height: 1.6; }
.step-connector {
  width: 80px; height: 2px; margin-top: 36px; flex-shrink: 0;
  background: linear-gradient(90deg, var(--neon-primary), var(--neon-gold));
  position: relative; opacity: .4;
}
.step-connector::after {
  content: '▶'; position: absolute; right: -8px; top: -7px;
  color: var(--neon-gold); font-size: 14px; opacity: 1;
}

/* ===== 商品页 ===== */
.products-page-wrap { padding: 40px 0; }
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 32px; flex-wrap: wrap; gap: 16px;
}
.page-header h1 { font-size: 32px; font-weight: 800; }

.search-bar {
  display: flex; gap: 0; overflow: hidden;
  border: 1px solid var(--border-dim); border-radius: var(--radius-sm);
  background: var(--bg-card); backdrop-filter: blur(12px);
  transition: border-color .2s;
}
.search-bar:focus-within { border-color: rgba(255,107,0,.5); box-shadow: 0 0 20px rgba(255,107,0,.1); }
.search-input {
  background: transparent; border: none; padding: 12px 18px; font-size: 14px;
  color: var(--text-bright); width: 280px; outline: none;
}
.search-input::placeholder { color: var(--text-dim); }
.search-input + .btn { border-radius: 0; }

.filter-bar {
  display: flex; align-items: center; gap: 10px; margin-bottom: 28px;
  flex-wrap: wrap; padding-bottom: 20px;
  border-bottom: 1px solid var(--border-dim);
}
.filter-btn {
  padding: 8px 20px; border-radius: 20px; font-size: 13px; font-weight: 600;
  border: 1px solid var(--border-dim); background: var(--bg-card);
  color: var(--text-dim); cursor: pointer; transition: all .2s;
  backdrop-filter: blur(8px);
}
.filter-btn:hover { color: var(--text-bright); border-color: rgba(255,255,255,.2); }
.filter-btn.active {
  background: linear-gradient(135deg, var(--neon-primary), #ff9500);
  color: #fff; border-color: transparent;
  box-shadow: 0 4px 16px rgba(255,107,0,.4);
}

.sort-bar { margin-left: auto; }
.sort-select {
  background: var(--bg-card); border: 1px solid var(--border-dim);
  color: var(--text-mid); border-radius: var(--radius-sm); padding: 9px 14px;
  font-size: 13px; outline: none; cursor: pointer; backdrop-filter: blur(8px);
}
.sort-select option { background: #0d0f1a; }

.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 48px; padding-bottom: 60px; }
.page-btn {
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-dim); background: var(--bg-card);
  cursor: pointer; font-size: 14px; color: var(--text-dim);
  transition: all .2s; backdrop-filter: blur(8px);
}
.page-btn.active, .page-btn:hover {
  background: linear-gradient(135deg, var(--neon-primary), #ff9500);
  color: #fff; border-color: transparent;
  box-shadow: 0 4px 16px rgba(255,107,0,.4);
}

/* ===== 返利页 ===== */
.rebate-page-wrap { padding: 40px 0 60px; }
.rebate-hero {
  position: relative; border-radius: 20px; overflow: hidden;
  background: linear-gradient(135deg, rgba(255,107,0,.12) 0%, rgba(0,245,255,.06) 100%);
  border: 1px solid rgba(255,107,0,.2);
  padding: 40px; margin-bottom: 32px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px;
}
.rebate-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at top right, rgba(255,107,0,.1), transparent 60%);
}
.rebate-stats { display: flex; gap: 20px; flex-wrap: wrap; }
.rebate-stat-card {
  border-radius: var(--radius); padding: 20px 28px; text-align: center;
  background: rgba(255,255,255,.04); border: 1px solid var(--border-dim);
  backdrop-filter: blur(12px); min-width: 150px;
}
.rebate-stat-card.highlight {
  background: linear-gradient(135deg, rgba(255,107,0,.2), rgba(255,215,0,.1));
  border-color: rgba(255,107,0,.4);
  box-shadow: 0 0 30px rgba(255,107,0,.15);
}
.rebate-stat-value {
  font-size: 28px; font-weight: 800;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.rebate-stat-label { font-size: 13px; color: var(--text-dim); margin-top: 4px; }

.rebate-tabs {
  display: flex; gap: 4px; margin-bottom: 24px;
  border-bottom: 1px solid var(--border-dim);
}
.tab-btn {
  padding: 13px 28px; font-size: 14px; font-weight: 600; cursor: pointer;
  border: none; background: transparent; color: var(--text-dim);
  border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all .2s;
}
.tab-btn.active { color: var(--neon-primary); border-bottom-color: var(--neon-primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ===== 记录列表 ===== */
.records-list { display: flex; flex-direction: column; gap: 12px; }
.record-item {
  background: var(--bg-card); border: 1px solid var(--border-dim);
  border-radius: var(--radius); padding: 18px 22px;
  display: flex; align-items: center; gap: 16px;
  backdrop-filter: blur(12px); transition: all .2s;
}
.record-item:hover { border-color: rgba(255,107,0,.25); background: var(--bg-card-hover); }
.record-icon {
  width: 48px; height: 48px; border-radius: 12px; flex-shrink: 0;
  background: linear-gradient(135deg, rgba(255,107,0,.15), rgba(255,215,0,.08));
  border: 1px solid rgba(255,107,0,.2);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.record-info { flex: 1; }
.record-title { font-size: 15px; font-weight: 600; color: var(--text-bright); }
.record-sub { font-size: 12px; color: var(--text-dim); margin-top: 3px; }
.record-amount { font-size: 20px; font-weight: 800; }
.record-amount.positive {
  background: linear-gradient(135deg, #39ff14, #00f5ff);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.record-amount.negative { color: var(--neon-pink); }
.record-status { font-size: 11px; font-weight: 600; padding: 4px 10px; border-radius: 20px; letter-spacing: .5px; }
.status-pending { background: rgba(255,136,0,.15); color: #ff8800; border: 1px solid rgba(255,136,0,.3); }
.status-settled { background: rgba(57,255,20,.1); color: #39ff14; border: 1px solid rgba(57,255,20,.3); }
.status-processing { background: rgba(0,245,255,.1); color: var(--neon-cyan); border: 1px solid rgba(0,245,255,.3); }

/* ===== 空状态 ===== */
.empty-state { text-align: center; padding: 80px 20px; }
.empty-icon { font-size: 64px; margin-bottom: 20px; opacity: .5; }
.empty-text { font-size: 16px; color: var(--text-dim); font-weight: 600; }
.empty-sub { font-size: 13px; color: var(--text-dim); opacity: .6; margin-top: 8px; }

/* ===== 邀请页 ===== */
.invite-page-wrap { padding: 40px 0 80px; }
.invite-hero {
  text-align: center; padding: 60px 0 48px; position: relative;
}
.invite-hero h1 {
  font-size: 48px; font-weight: 900; letter-spacing: -1.5px; margin-bottom: 16px;
  background: linear-gradient(90deg, var(--neon-primary), var(--neon-gold), var(--neon-primary));
  background-size: 200%;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  animation: shimmer 4s linear infinite;
}
.invite-hero p { font-size: 17px; color: var(--text-mid); max-width: 500px; margin: 0 auto; }

.invite-card {
  background: var(--bg-card); border: 1px solid var(--border-dim);
  border-radius: 20px; padding: 40px; margin-bottom: 32px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start;
  backdrop-filter: blur(20px); position: relative; overflow: hidden;
}
.invite-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-primary), var(--neon-gold), transparent);
}
.invite-label { font-size: 12px; color: var(--text-dim); font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px; }
.invite-code-display {
  font-size: 44px; font-weight: 900; letter-spacing: 8px; margin-bottom: 24px;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  text-shadow: none; font-variant-numeric: tabular-nums;
}
.invite-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.invite-rule h3 { font-size: 18px; font-weight: 700; margin-bottom: 20px; color: var(--text-bright); }
.invite-rule ul { display: flex; flex-direction: column; gap: 14px; }
.invite-rule li {
  font-size: 14px; color: var(--text-mid); padding: 14px 16px 14px 48px;
  position: relative; background: rgba(255,255,255,.03);
  border: 1px solid var(--border-dim); border-radius: var(--radius-sm);
  transition: border-color .2s;
}
.invite-rule li:hover { border-color: rgba(57,255,20,.3); }
.invite-rule li::before {
  content: '✦'; position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  color: var(--neon-green); font-size: 14px;
}

.invite-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 40px; }
.invite-stat {
  background: var(--bg-card); border: 1px solid var(--border-dim);
  border-radius: var(--radius); padding: 28px; text-align: center;
  backdrop-filter: blur(12px); transition: all .3s; position: relative; overflow: hidden;
}
.invite-stat::before {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
  opacity: 0; transition: opacity .3s;
}
.invite-stat:hover::before { opacity: 1; }
.invite-stat:hover { border-color: rgba(0,245,255,.2); }
.invite-stat-num {
  font-size: 32px; font-weight: 800;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.invite-stat-label { font-size: 13px; color: var(--text-dim); margin-top: 6px; }
.invite-list-section h3 { font-size: 22px; font-weight: 800; margin-bottom: 20px; }

/* ===== 弹窗 ===== */
.modal { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: center; justify-content: center; }
.modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,.8); backdrop-filter: blur(8px); }
.modal-content {
  position: relative;
  background: rgba(10,12,22,.95);
  border: 1px solid var(--border-dim);
  border-radius: 20px; padding: 36px;
  width: 440px; max-width: calc(100vw - 40px);
  box-shadow: 0 40px 120px rgba(0,0,0,.9), 0 0 40px rgba(255,107,0,.08);
  animation: modalIn .25s cubic-bezier(.34,1.56,.64,1);
  backdrop-filter: blur(30px);
}
.modal-content::before {
  content: ''; position: absolute; top: 0; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,107,0,.6), transparent);
}
.modal-product { width: 600px; }
@keyframes modalIn { from { opacity:0; transform:scale(.9) translateY(20px); } to { opacity:1; transform:scale(1) translateY(0); } }

.modal-close {
  position: absolute; top: 18px; right: 18px; background: rgba(255,255,255,.05);
  border: 1px solid var(--border-dim); border-radius: 8px;
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  font-size: 18px; cursor: pointer; color: var(--text-dim); transition: all .2s;
}
.modal-close:hover { background: rgba(255,107,0,.1); color: var(--neon-primary); border-color: rgba(255,107,0,.4); }

.modal-title { font-size: 22px; font-weight: 800; margin-bottom: 24px; }
.modal-tabs { display: flex; gap: 4px; margin-bottom: 28px; border-bottom: 1px solid var(--border-dim); }
.modal-tab {
  padding: 10px 22px; font-size: 14px; font-weight: 600; cursor: pointer;
  border: none; background: transparent; color: var(--text-dim);
  border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all .2s;
}
.modal-tab.active { color: var(--neon-primary); border-bottom-color: var(--neon-primary); }

/* ===== 表单 ===== */
.auth-form { display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--text-dim); letter-spacing: .5px; }
.form-group input, .form-group select {
  background: rgba(255,255,255,.05); border: 1px solid var(--border-dim);
  border-radius: var(--radius-sm); padding: 13px 16px; font-size: 15px;
  color: var(--text-bright); outline: none; transition: all .2s;
}
.form-group input::placeholder { color: var(--text-dim); }
.form-group input:focus {
  border-color: rgba(255,107,0,.5);
  background: rgba(255,107,0,.05);
  box-shadow: 0 0 20px rgba(255,107,0,.1);
}
.form-hint { font-size: 12px; color: var(--text-dim); }
.form-hint span { color: var(--neon-gold); font-weight: 700; }
.form-error { font-size: 13px; color: var(--neon-pink); min-height: 18px; }
.radio-group { display: flex; gap: 20px; }
.radio-label { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-mid); cursor: pointer; }

/* ===== 商品详情弹窗 ===== */
.product-detail-inner { display: flex; gap: 28px; }
.product-detail-img {
  width: 220px; aspect-ratio: 1; border-radius: var(--radius); flex-shrink: 0;
  background: linear-gradient(135deg, rgba(255,107,0,.1), rgba(0,245,255,.06));
  border: 1px solid var(--border-dim);
  display: flex; align-items: center; justify-content: center; font-size: 88px;
}
.product-detail-info { flex: 1; }
.product-detail-name { font-size: 17px; font-weight: 600; color: var(--text-bright); margin-bottom: 16px; line-height: 1.55; }
.product-detail-price { font-size: 36px; font-weight: 900; color: var(--text-bright); margin-bottom: 4px; }
.product-detail-price .unit { font-size: 18px; color: var(--neon-primary); }
.product-detail-original { font-size: 14px; color: var(--text-dim); text-decoration: line-through; margin-bottom: 20px; }
.product-detail-rebate {
  background: linear-gradient(135deg, rgba(255,107,0,.12), rgba(255,215,0,.06));
  border: 1px solid rgba(255,107,0,.25); border-radius: var(--radius-sm);
  padding: 16px; margin-bottom: 20px;
}
.rebate-rate-big {
  font-size: 20px; font-weight: 800;
  background: linear-gradient(135deg, var(--neon-primary), var(--neon-gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.rebate-amount-hint { font-size: 13px; color: var(--text-dim); margin-top: 6px; }
.product-detail-platform { font-size: 13px; color: var(--text-dim); margin-bottom: 24px; }
.product-detail-actions { display: flex; gap: 12px; }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 36px; left: 50%; transform: translateX(-50%);
  background: rgba(10,12,22,.95); color: var(--text-bright);
  border: 1px solid rgba(255,107,0,.3);
  padding: 14px 28px; border-radius: 50px; font-size: 14px; font-weight: 500;
  z-index: 9999; backdrop-filter: blur(20px);
  box-shadow: 0 8px 40px rgba(0,0,0,.6), 0 0 20px rgba(255,107,0,.2);
  animation: toastIn .25s cubic-bezier(.34,1.56,.64,1);
}
@keyframes toastIn { from { opacity:0; transform:translateX(-50%) translateY(16px) scale(.95); } to { opacity:1; transform:translateX(-50%) translateY(0) scale(1); } }

/* ===== Footer ===== */
.footer {
  background: var(--bg-deep); border-top: 1px solid var(--border-dim);
  padding: 60px 0 28px; position: relative; z-index: 2;
}
.footer-content { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand p { font-size: 14px; color: var(--text-dim); margin-top: 12px; line-height: 1.7; }
.footer-links h4 { font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--text-dim); margin-bottom: 20px; }
.footer-links a { display: block; font-size: 14px; color: var(--text-dim); margin-bottom: 10px; transition: color .2s; }
.footer-links a:hover { color: var(--neon-primary); }
.footer-bottom {
  border-top: 1px solid var(--border-dim); padding-top: 24px;
  font-size: 13px; text-align: center; color: var(--text-dim);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .platform-grid { grid-template-columns: repeat(3, 1fr); }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .banner-content h1 { font-size: 52px; }
}
@media (max-width: 768px) {
  .nav { display: none; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .banner-content h1 { font-size: 38px; letter-spacing: -1px; }
  .invite-card { grid-template-columns: 1fr; gap: 32px; }
  .rebate-stats { flex-wrap: wrap; }
  .footer-content { grid-template-columns: 1fr 1fr; }
  .steps { flex-direction: column; align-items: center; }
  .step-connector { width: 2px; height: 40px; transform: rotate(90deg); }
  .banner-cta { flex-direction: column; align-items: center; }
}
@media (max-width: 480px) {
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .invite-stats { grid-template-columns: 1fr; }
  .footer-content { grid-template-columns: 1fr; }
  .banner-content h1 { font-size: 30px; }
  .search-input { width: 180px; }
}