/* ============ 基础重置 ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #050510; color: #e2e8f0; line-height: 1.6; min-height: 100vh;
  display: flex; flex-direction: column;
}
a { color: #818cf8; text-decoration: none; transition: color .2s; }
a:hover { color: #a78bfa; }
img { max-width: 100%; height: auto; }
ul, ol { list-style: none; }
input, select, textarea, button { font-family: inherit; font-size: inherit; }

/* ============ 容器 ============ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-sm { max-width: 800px; margin: 0 auto; padding: 0 20px; }

/* ============ 头部导航 ============ */
.header {
  background: rgba(5,5,16,.8); border-bottom: 1px solid rgba(255,255,255,.06);
  position: sticky; top: 0; z-index: 100; backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; max-width: 1200px; margin: 0 auto; padding: 0 20px;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 700; color: #fff; }
.logo-icon {
  width: 36px; height: 36px; background: linear-gradient(135deg, #6366f1, #8b5cf6); border-radius: 10px;
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1rem;
  box-shadow: 0 0 20px rgba(99,102,241,.3);
}
.nav { display: flex; gap: 2px; align-items: center; }
.nav a {
  padding: 8px 16px; border-radius: 8px; color: rgba(255,255,255,.65); font-size: .9rem; font-weight: 500; transition: all .2s;
}
.nav a:hover, .nav a.active { background: rgba(99,102,241,.12); color: #fff; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: #94a3b8; margin: 4px 0; transition: .2s; }

/* ============ Hero ============ */
.hero {
  background: #050510; color: #fff; padding: 100px 0 80px; text-align: center;
  position: relative; overflow: hidden; min-height: 560px;
}
/* 网格背景 */
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(99,102,241,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(99,102,241,.07) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}
/* 模糊光球 */
.hero::after {
  content: ''; position: absolute; top: -40%; left: -30%; width: 160%; height: 180%;
  background: radial-gradient(circle at 25% 40%, rgba(99,102,241,.18) 0%, transparent 45%),
              radial-gradient(circle at 75% 60%, rgba(139,92,246,.12) 0%, transparent 40%),
              radial-gradient(circle at 50% 80%, rgba(34,211,238,.06) 0%, transparent 35%);
  animation: heroFloat 12s ease-in-out infinite alternate;
  filter: blur(40px);
}
@keyframes heroFloat {
  0% { transform: translate(0,0) scale(1); }
  50% { transform: translate(-2%,1%) scale(1.02); }
  100% { transform: translate(1%,-1%) scale(1); }
}
.hero > * { position: relative; z-index: 1; }
.hero h1 {
  font-size: 2.8rem; font-weight: 800; margin-bottom: 18px; line-height: 1.25;
  background: linear-gradient(135deg, #fff 0%, #c7d2fe 40%, #818cf8 70%, #22d3ee 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero .hero-sub { font-size: 1.1rem; color: rgba(148,163,184,.9); max-width: 640px; margin: 0 auto 32px; line-height: 1.7; }
.hero-search {
  max-width: 520px; margin: 0 auto; display: flex; gap: 0;
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08); border-radius: 14px; overflow: hidden;
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
}
.hero-search input {
  flex: 1; padding: 14px 20px; border: none; background: transparent; color: #e2e8f0; font-size: 1rem; outline: none;
}
.hero-search input::placeholder { color: #475569; }
.hero-search button {
  padding: 14px 28px; background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff; border: none; font-weight: 600; cursor: pointer; transition: all .3s;
  box-shadow: 0 0 20px rgba(99,102,241,.25);
}
.hero-search button:hover { box-shadow: 0 0 30px rgba(99,102,241,.4); }

/* Hero 数据统计 */
.hero-stats {
  display: flex; justify-content: center; gap: 12px; margin-top: 40px; flex-wrap: wrap;
}
.hero-stat {
  text-align: center; padding: 16px 28px; border-radius: 14px;
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.06);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  min-width: 130px; transition: all .3s;
}
.hero-stat:hover { background: rgba(255,255,255,.07); border-color: rgba(99,102,241,.3); transform: translateY(-2px); }
.hero-stat .num { font-size: 1.5rem; font-weight: 700; color: #22d3ee; }
.hero-stat .label { font-size: .78rem; color: #64748b; margin-top: 2px; }

/* ============ 平台图标栏 ============ */
.platform-bar { display: flex; justify-content: center; gap: 28px; margin: 32px 0 0; flex-wrap: wrap; }
.platform-icon { display: flex; flex-direction: column; align-items: center; gap: 8px; cursor: pointer; }
.platform-icon .icon-circle {
  width: 60px; height: 60px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; border: 1px solid rgba(255,255,255,.08); transition: all .4s;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.platform-icon:hover .icon-circle { transform: translateY(-6px) scale(1.05); }
.platform-icon .icon-circle.dy { background: rgba(254,44,85,.1); color: #fe2c55; box-shadow: 0 4px 20px rgba(254,44,85,.1); }
.platform-icon:hover .icon-circle.dy { box-shadow: 0 8px 30px rgba(254,44,85,.25); }
.platform-icon .icon-circle.xhs { background: rgba(255,36,66,.1); color: #ff2442; box-shadow: 0 4px 20px rgba(255,36,66,.1); }
.platform-icon:hover .icon-circle.xhs { box-shadow: 0 8px 30px rgba(255,36,66,.25); }
.platform-icon .icon-circle.ks { background: rgba(255,73,6,.1); color: #ff4906; box-shadow: 0 4px 20px rgba(255,73,6,.1); }
.platform-icon:hover .icon-circle.ks { box-shadow: 0 8px 30px rgba(255,73,6,.25); }
.platform-icon .icon-circle.bili { background: rgba(0,161,214,.1); color: #00a1d6; box-shadow: 0 4px 20px rgba(0,161,214,.1); }
.platform-icon:hover .icon-circle.bili { box-shadow: 0 8px 30px rgba(0,161,214,.25); }
.platform-icon span:last-child { font-size: .78rem; color: #64748b; font-weight: 500; }

/* ============ 分类标签 ============ */
.cat-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.cat-pill {
  padding: 6px 16px; border-radius: 20px; font-size: .85rem; font-weight: 500;
  background: rgba(255,255,255,.04); color: #94a3b8; border: 1px solid rgba(255,255,255,.06); transition: all .2s; cursor: pointer;
}
.cat-pill:hover, .cat-pill.active { background: #6366f1; color: #fff; border-color: #6366f1; }

/* ============ 通用区块 ============ */
.section { padding: 56px 0; position: relative; }
.section-title {
  font-size: 1.4rem; font-weight: 700; margin-bottom: 28px; display: flex; align-items: center; gap: 10px; color: #e2e8f0;
}
.section-title .icon { font-size: 1.2rem; }
.section-subtitle { font-size: .9rem; color: #64748b; margin-top: -20px; margin-bottom: 28px; }

/* 区块背景装饰光球 */
.section-glow { position: relative; overflow: hidden; }
.section-glow::before {
  content: ''; position: absolute; width: 500px; height: 500px; border-radius: 50%;
  filter: blur(120px); opacity: .08; pointer-events: none;
}
.section-glow.glow-left::before { left: -200px; top: 0; background: #6366f1; }
.section-glow.glow-right::before { right: -200px; top: 0; background: #8b5cf6; }
.section-glow.glow-cyan::before { right: -150px; bottom: -100px; background: #22d3ee; }

/* ============ 商品卡片 ============ */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.product-card {
  background: rgba(18,18,26,.7); border-radius: 14px; padding: 24px; border: 1px solid rgba(255,255,255,.06);
  transition: all .35s cubic-bezier(.4,0,.2,1); position: relative; display: flex; flex-direction: column;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.product-card:hover {
  transform: translateY(-6px); border-color: rgba(99,102,241,.4);
  box-shadow: 0 12px 40px rgba(99,102,241,.12), 0 0 0 1px rgba(99,102,241,.1);
}
.product-card .badge {
  position: absolute; top: 12px; right: 12px; padding: 3px 10px; border-radius: 12px;
  font-size: .72rem; font-weight: 600;
}
.badge-hot { background: rgba(244,63,94,.12); color: #f43f5e; border: 1px solid rgba(244,63,94,.15); }
.badge-recommend { background: rgba(34,211,238,.12); color: #22d3ee; border: 1px solid rgba(34,211,238,.15); }
.product-card .cat-label { font-size: .75rem; color: #64748b; margin-bottom: 6px; }
.product-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; color: #e2e8f0; line-height: 1.4; }
.product-card .desc { font-size: .85rem; color: #64748b; margin-bottom: 16px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-card .bottom { display: flex; align-items: center; justify-content: space-between; margin-top: auto; }
.product-card .price { font-size: 1.2rem; font-weight: 700; color: #22d3ee; }
.product-card .price .original { font-size: .8rem; color: #475569; text-decoration: line-through; margin-left: 6px; font-weight: 400; }
.product-card .meta { font-size: .75rem; color: #64748b; display: flex; gap: 12px; }
.product-card .stock-ok { color: #22c55e; }
.product-card .stock-low { color: #f59e0b; }
.product-card .stock-out { color: #ef4444; }

/* ============ 商品详情 ============ */
.product-detail { background: rgba(18,18,26,.7); border-radius: 16px; padding: 40px; border: 1px solid rgba(255,255,255,.06); }
.product-detail h1 { font-size: 1.6rem; font-weight: 700; margin-bottom: 12px; color: #e2e8f0; }
.product-detail .meta-row { display: flex; gap: 20px; color: #64748b; font-size: .85rem; margin-bottom: 20px; }
.price-box {
  background: linear-gradient(135deg, rgba(99,102,241,.06), rgba(139,92,246,.06)); border-radius: 14px;
  padding: 20px 24px; margin-bottom: 24px; display: flex; align-items: baseline; gap: 12px;
  border: 1px solid rgba(99,102,241,.1);
}
.price-box .current { font-size: 2rem; font-weight: 800; color: #22d3ee; }
.price-box .original { font-size: 1rem; color: #475569; text-decoration: line-through; }
.price-box .discount {
  background: rgba(244,63,94,.12); color: #f43f5e; padding: 2px 8px; border-radius: 6px; font-size: .75rem; font-weight: 600;
}
.buy-form { margin-top: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: .85rem; font-weight: 600; color: #94a3b8; margin-bottom: 6px; }
.form-input {
  width: 100%; padding: 12px 16px; border: 1px solid rgba(255,255,255,.08); border-radius: 10px;
  font-size: .95rem; transition: all .2s; background: rgba(5,5,16,.6); color: #e2e8f0;
}
.form-input:focus { outline: none; border-color: #6366f1; box-shadow: 0 0 0 3px rgba(99,102,241,.12); }
.qty-selector { display: flex; align-items: center; gap: 0; }
.qty-btn {
  width: 40px; height: 40px; border: 1px solid rgba(255,255,255,.08); background: rgba(18,18,26,.7); cursor: pointer; color: #94a3b8;
  font-size: 1.1rem; display: flex; align-items: center; justify-content: center; transition: .2s;
}
.qty-btn:hover { background: rgba(99,102,241,.1); color: #e2e8f0; }
.qty-btn:first-child { border-radius: 8px 0 0 8px; }
.qty-btn:last-child { border-radius: 0 8px 8px 0; }
.qty-input { width: 60px; text-align: center; border: 1px solid rgba(255,255,255,.08); border-left: 0; border-right: 0; height: 40px; font-size: 1rem; background: rgba(5,5,16,.6); color: #e2e8f0; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 10px; font-weight: 600; font-size: .95rem;
  border: none; cursor: pointer; transition: all .3s; text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff;
  box-shadow: 0 4px 16px rgba(99,102,241,.25);
}
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(99,102,241,.35); }
.btn-lg { padding: 14px 36px; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn-outline { background: transparent; border: 1px solid rgba(255,255,255,.1); color: #94a3b8; }
.btn-outline:hover { border-color: #6366f1; color: #818cf8; background: rgba(99,102,241,.06); }
.btn-sm { padding: 6px 14px; font-size: .8rem; border-radius: 6px; }
.btn-success { background: linear-gradient(135deg, #22c55e, #16a34a); color: #fff; }
.btn-danger { background: linear-gradient(135deg, #ef4444, #dc2626); color: #fff; }

/* ============ 文章列表 ============ */
.article-list { display: flex; flex-direction: column; gap: 16px; }
.article-item {
  background: rgba(18,18,26,.7); border-radius: 14px; padding: 24px; border: 1px solid rgba(255,255,255,.06); transition: all .3s;
}
.article-item:hover { border-color: rgba(99,102,241,.3); box-shadow: 0 4px 20px rgba(99,102,241,.08); }
.article-item h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; }
.article-item h3 a { color: #e2e8f0; }
.article-item h3 a:hover { color: #818cf8; }
.article-item .summary { font-size: .85rem; color: #64748b; margin-bottom: 10px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.article-item .meta { font-size: .75rem; color: #475569; display: flex; gap: 16px; }

/* ============ 文章详情 ============ */
.article-content { background: rgba(18,18,26,.7); border-radius: 16px; padding: 40px; border: 1px solid rgba(255,255,255,.06); }
.article-content h1 { font-size: 1.6rem; font-weight: 700; margin-bottom: 16px; line-height: 1.4; color: #e2e8f0; }
.article-content .meta-row { display: flex; gap: 16px; color: #64748b; font-size: .85rem; margin-bottom: 28px;
  padding-bottom: 20px; border-bottom: 1px solid rgba(255,255,255,.06); }
.article-body { font-size: .95rem; line-height: 1.8; color: #94a3b8; }
.article-body h2 { font-size: 1.25rem; font-weight: 700; margin: 28px 0 12px; color: #e2e8f0; }
.article-body h3 { font-size: 1.1rem; font-weight: 600; margin: 20px 0 10px; color: #e2e8f0; }
.article-body p { margin-bottom: 16px; }
.article-body ul, .article-body ol { margin: 12px 0; padding-left: 24px; }
.article-body li { margin-bottom: 8px; }
.article-body img { border-radius: 8px; margin: 16px 0; }
.article-body code { background: rgba(30,30,46,.8); padding: 2px 6px; border-radius: 4px; font-size: .85rem; color: #22d3ee; }
.article-body pre { background: rgba(5,5,16,.8); color: #e2e8f0; padding: 16px; border-radius: 8px; margin: 16px 0; overflow-x: auto; border: 1px solid rgba(255,255,255,.06); }
.article-body blockquote { border-left: 3px solid #6366f1; padding-left: 16px; margin: 16px 0; color: #64748b; }

.product-promo {
  background: linear-gradient(135deg, rgba(99,102,241,.06), rgba(139,92,246,.06)); border-radius: 14px; padding: 24px;
  margin: 28px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px;
  border: 1px solid rgba(99,102,241,.1);
}
.product-promo .info h4 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; color: #e2e8f0; }
.product-promo .info p { font-size: .85rem; color: #64748b; }
.product-promo .price-tag { font-size: 1.3rem; font-weight: 700; color: #22d3ee; }

/* ============ 订单查询 ============ */
.query-box { background: rgba(18,18,26,.7); border-radius: 16px; padding: 40px; border: 1px solid rgba(255,255,255,.06); text-align: center; }
.query-box h1 { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; color: #e2e8f0; }
.query-box p { color: #64748b; margin-bottom: 24px; }
.query-form { max-width: 500px; margin: 0 auto; display: flex; gap: 8px; }
.query-form input { flex: 1; }

.order-result { background: rgba(18,18,26,.7); border-radius: 16px; padding: 32px; border: 1px solid rgba(255,255,255,.06); margin-top: 24px; }
.order-info { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.order-info .item { padding: 12px; background: rgba(5,5,16,.6); border-radius: 10px; border: 1px solid rgba(255,255,255,.06); }
.order-info .item .label { font-size: .75rem; color: #64748b; }
.order-info .item .value { font-size: .95rem; font-weight: 600; color: #e2e8f0; margin-top: 2px; }
.status-badge { display: inline-block; padding: 4px 12px; border-radius: 6px; font-size: .8rem; font-weight: 600; }
.status-pending { background: rgba(245,158,11,.12); color: #f59e0b; }
.status-paid { background: rgba(99,102,241,.12); color: #818cf8; }
.status-delivered { background: rgba(34,197,94,.12); color: #22c55e; }
.status-completed { background: rgba(34,197,94,.12); color: #22c55e; }
.status-cancelled { background: rgba(100,116,139,.12); color: #64748b; }
.status-refunded { background: rgba(239,68,68,.12); color: #ef4444; }

.card-list { margin-top: 20px; }
.card-item {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 16px; background: rgba(5,5,16,.6); border-radius: 10px; margin-bottom: 8px; border: 1px solid rgba(255,255,255,.06);
  font-family: "SF Mono", "Fira Code", monospace; font-size: .9rem; word-break: break-all; color: #22d3ee;
}
.card-item .copy-btn {
  flex-shrink: 0; padding: 6px 12px; background: #6366f1; color: #fff; border: none;
  border-radius: 6px; font-size: .75rem; cursor: pointer; transition: .2s;
}
.card-item .copy-btn:hover { background: #4f46e5; }

/* ============ USDT支付页 ============ */
.pay-usdt {
  background: rgba(18,18,26,.7); border-radius: 16px; padding: 40px; border: 1px solid rgba(255,255,255,.06); text-align: center;
}
.pay-usdt .amount { font-size: 2.5rem; font-weight: 800; color: #22d3ee; margin: 16px 0 8px; }
.pay-usdt .amount-sub { color: #64748b; margin-bottom: 24px; }
.wallet-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 16px; }
.wallet-tab {
  padding: 8px 20px; border-radius: 8px; border: 1px solid rgba(255,255,255,.08); cursor: pointer;
  font-weight: 500; font-size: .9rem; transition: .2s; background: rgba(5,5,16,.6); color: #94a3b8;
}
.wallet-tab.active { background: #6366f1; color: #fff; border-color: #6366f1; }
.wallet-addr {
  background: rgba(5,5,16,.6); border: 1px dashed rgba(255,255,255,.1); border-radius: 10px; padding: 16px;
  font-family: monospace; font-size: .85rem; word-break: break-all; margin-bottom: 16px; color: #22d3ee;
}
.pay-notice { background: rgba(245,158,11,.06); border: 1px solid rgba(245,158,11,.15); border-radius: 10px; padding: 16px; font-size: .85rem; color: #f59e0b; text-align: left; margin-top: 20px; }
.pay-notice strong { display: block; margin-bottom: 6px; }

/* ============ 底部 ============ */
.footer {
  background: #030308; color: #64748b; padding: 48px 0 24px; margin-top: auto;
  border-top: 1px solid rgba(255,255,255,.06); position: relative; overflow: hidden;
}
.footer::before {
  content: ''; position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 600px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,.06) 0%, transparent 70%);
  filter: blur(80px); pointer-events: none;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 32px; position: relative; }
.footer h4 { color: #e2e8f0; font-size: .95rem; margin-bottom: 16px; position: relative; padding-left: 12px; }
.footer h4::before { content: ''; position: absolute; left: 0; top: 2px; bottom: 2px; width: 3px; border-radius: 2px; background: linear-gradient(180deg, #6366f1, #8b5cf6); }
.footer p { font-size: .85rem; line-height: 1.7; }
.footer ul li { margin-bottom: 8px; }
.footer ul a { color: #64748b; font-size: .85rem; transition: all .2s; }
.footer ul a:hover { color: #818cf8; padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.06); padding-top: 20px; text-align: center; font-size: .8rem; position: relative; }
.footer-links { margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,.06); display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.footer-links span { font-size: .72rem; color: #475569; }
.footer-links a { font-size: .72rem; color: #475569; transition: color .2s; }
.footer-links a:hover { color: #818cf8; }

/* ============ 面包屑 ============ */
.breadcrumb { padding: 16px 0; font-size: .85rem; color: #64748b; }
.breadcrumb a { color: #94a3b8; }
.breadcrumb a:hover { color: #818cf8; }
.breadcrumb span { margin: 0 6px; }

/* ============ 分页 ============ */
.pagination { display: flex; justify-content: center; gap: 4px; margin-top: 32px; }
.pagination a, .pagination span {
  padding: 8px 14px; border-radius: 8px; font-size: .85rem; font-weight: 500; border: 1px solid rgba(255,255,255,.06);
}
.pagination a { background: rgba(18,18,26,.7); color: #94a3b8; transition: .2s; }
.pagination a:hover { border-color: rgba(99,102,241,.4); color: #818cf8; }
.pagination span.current { background: #6366f1; color: #fff; border-color: #6366f1; }

/* ============ 提示 ============ */
.alert { padding: 14px 20px; border-radius: 10px; font-size: .9rem; margin-bottom: 20px; }
.alert-success { background: rgba(34,197,94,.08); color: #22c55e; border: 1px solid rgba(34,197,94,.15); }
.alert-error { background: rgba(239,68,68,.08); color: #ef4444; border: 1px solid rgba(239,68,68,.15); }
.alert-warning { background: rgba(245,158,11,.08); color: #f59e0b; border: 1px solid rgba(245,158,11,.15); }
.alert-info { background: rgba(99,102,241,.08); color: #818cf8; border: 1px solid rgba(99,102,241,.15); }

/* ============ 信任标识 ============ */
.trust-bar { display: flex; justify-content: center; gap: 40px; padding: 24px 0; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 8px; font-size: .85rem; color: #64748b; }
.trust-item .icon { font-size: 1.2rem; }

/* ============ 核心平台卡片 ============ */
.platform-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.platform-card {
  background: rgba(18,18,26,.6); border-radius: 16px; padding: 28px; border: 1px solid rgba(255,255,255,.06);
  transition: all .4s cubic-bezier(.4,0,.2,1); text-align: center; position: relative; overflow: hidden;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.platform-card::before {
  content: ''; position: absolute; inset: 0; opacity: 0; transition: opacity .4s;
  border-radius: 16px;
}
.platform-card:hover { transform: translateY(-6px); }
.platform-card:hover::before { opacity: 1; }
.platform-card.dy:hover { border-color: rgba(254,44,85,.5); box-shadow: 0 12px 40px rgba(254,44,85,.15); }
.platform-card.dy::before { background: radial-gradient(ellipse at center, rgba(254,44,85,.08) 0%, transparent 70%); }
.platform-card.xhs:hover { border-color: rgba(255,36,66,.5); box-shadow: 0 12px 40px rgba(255,36,66,.15); }
.platform-card.xhs::before { background: radial-gradient(ellipse at center, rgba(255,36,66,.08) 0%, transparent 70%); }
.platform-card.ks:hover { border-color: rgba(255,73,6,.5); box-shadow: 0 12px 40px rgba(255,73,6,.15); }
.platform-card.ks::before { background: radial-gradient(ellipse at center, rgba(255,73,6,.08) 0%, transparent 70%); }
.platform-card.bili:hover { border-color: rgba(0,161,214,.5); box-shadow: 0 12px 40px rgba(0,161,214,.15); }
.platform-card.bili::before { background: radial-gradient(ellipse at center, rgba(0,161,214,.08) 0%, transparent 70%); }
.platform-card .p-icon { font-size: 2.4rem; margin-bottom: 14px; position: relative; z-index: 1; }
.platform-card h3 { font-size: 1.1rem; font-weight: 700; color: #e2e8f0; margin-bottom: 8px; position: relative; z-index: 1; }
.platform-card p { font-size: .8rem; color: #64748b; margin-bottom: 16px; position: relative; z-index: 1; line-height: 1.6; }
.platform-card .p-count { font-size: .75rem; color: #94a3b8; margin-bottom: 12px; position: relative; z-index: 1; }
.platform-card .btn { position: relative; z-index: 1; }
.platform-card.dy .btn { background: linear-gradient(135deg, #fe2c55, #e8204a); box-shadow: 0 4px 16px rgba(254,44,85,.2); }
.platform-card.xhs .btn { background: linear-gradient(135deg, #ff2442, #e81f3c); box-shadow: 0 4px 16px rgba(255,36,66,.2); }
.platform-card.ks .btn { background: linear-gradient(135deg, #ff4906, #e84005); box-shadow: 0 4px 16px rgba(255,73,6,.2); }
.platform-card.bili .btn { background: linear-gradient(135deg, #00a1d6, #0090c0); box-shadow: 0 4px 16px rgba(0,161,214,.2); }

/* ============ 新闻资讯 ============ */
.news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.news-featured {
  background: rgba(18,18,26,.6); border-radius: 14px; padding: 28px; border: 1px solid rgba(255,255,255,.06);
  display: flex; flex-direction: column; justify-content: space-between;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.news-featured h3 { font-size: 1.15rem; font-weight: 700; color: #e2e8f0; margin-bottom: 12px; line-height: 1.5; }
.news-featured h3 a { color: #e2e8f0; }
.news-featured h3 a:hover { color: #818cf8; }
.news-featured p { font-size: .85rem; color: #64748b; margin-bottom: 16px; flex: 1; line-height: 1.7; }
.news-featured .meta { font-size: .75rem; color: #475569; }
.news-list { display: flex; flex-direction: column; gap: 12px; }
.news-item {
  background: rgba(18,18,26,.6); border-radius: 10px; padding: 16px 20px; border: 1px solid rgba(255,255,255,.06);
  transition: all .3s; display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.news-item:hover { border-color: rgba(99,102,241,.3); background: rgba(99,102,241,.04); }
.news-item h4 { font-size: .9rem; font-weight: 600; color: #e2e8f0; flex: 1; }
.news-item .date { font-size: .75rem; color: #475569; white-space: nowrap; }

/* ============ 工具导航 ============ */
.tool-nav-section { margin-bottom: 24px; }
.tool-nav-title { font-size: .85rem; font-weight: 600; color: #64748b; margin-bottom: 12px; }
.tool-nav-links { display: flex; flex-wrap: wrap; gap: 8px; }
.tool-nav-links a {
  padding: 7px 15px; border-radius: 8px; font-size: .8rem; color: #94a3b8;
  background: rgba(18,18,26,.6); border: 1px solid rgba(255,255,255,.06); transition: all .3s;
}
.tool-nav-links a:hover { border-color: rgba(99,102,241,.4); color: #818cf8; background: rgba(99,102,241,.06); transform: translateY(-1px); }

/* ============ 功能亮点卡片 ============ */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature-card {
  background: rgba(18,18,26,.5); border-radius: 14px; padding: 28px 24px; border: 1px solid rgba(255,255,255,.06);
  transition: all .4s cubic-bezier(.4,0,.2,1); position: relative; overflow: hidden;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,.3); }
.feature-card .f-icon {
  width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(99,102,241,.12), rgba(139,92,246,.08));
  border: 1px solid rgba(99,102,241,.1);
}
.feature-card h3 { font-size: 1rem; font-weight: 600; color: #e2e8f0; margin-bottom: 8px; }
.feature-card p { font-size: .82rem; color: #64748b; line-height: 1.6; }
.feature-card.blue .f-icon { background: linear-gradient(135deg, rgba(14,165,233,.12), rgba(6,182,212,.08)); border-color: rgba(14,165,233,.15); }
.feature-card.green .f-icon { background: linear-gradient(135deg, rgba(34,197,94,.12), rgba(16,185,129,.08)); border-color: rgba(34,197,94,.15); }
.feature-card.orange .f-icon { background: linear-gradient(135deg, rgba(249,115,22,.12), rgba(245,158,11,.08)); border-color: rgba(249,115,22,.15); }
.feature-card.rose .f-icon { background: linear-gradient(135deg, rgba(244,63,94,.12), rgba(236,72,153,.08)); border-color: rgba(244,63,94,.15); }

/* ============ 客户评价 ============ */
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card {
  background: rgba(18,18,26,.5); border-radius: 14px; padding: 24px; border: 1px solid rgba(255,255,255,.06);
  transition: all .3s; position: relative;
}
.review-card:hover { border-color: rgba(99,102,241,.25); transform: translateY(-2px); }
.review-card .stars { color: #f59e0b; font-size: .85rem; margin-bottom: 12px; letter-spacing: 2px; }
.review-card .review-text { font-size: .85rem; color: #94a3b8; line-height: 1.7; margin-bottom: 16px; }
.review-card .reviewer { display: flex; align-items: center; gap: 10px; }
.review-card .avatar {
  width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: .85rem; font-weight: 600; color: #fff;
}
.review-card .avatar.av1 { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.review-card .avatar.av2 { background: linear-gradient(135deg, #0ea5e9, #06b6d4); }
.review-card .avatar.av3 { background: linear-gradient(135deg, #f97316, #ef4444); }
.review-card .r-name { font-size: .85rem; font-weight: 600; color: #e2e8f0; }
.review-card .r-role { font-size: .75rem; color: #64748b; }

/* ============ CTA区块 ============ */
.cta-section {
  text-align: center; padding: 64px 0; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,.06) 0%, rgba(139,92,246,.04) 50%, rgba(34,211,238,.03) 100%);
}
.cta-section > * { position: relative; z-index: 1; }
.cta-section h2 {
  font-size: 1.8rem; font-weight: 800; margin-bottom: 12px;
  background: linear-gradient(135deg, #fff, #818cf8);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.cta-section p { color: #64748b; margin-bottom: 28px; font-size: 1rem; }
.cta-buttons { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* ============ 脉冲装饰点 ============ */
.pulse-dot {
  width: 8px; height: 8px; border-radius: 50%; background: #22c55e; display: inline-block;
  animation: pulse 2s ease-in-out infinite; margin-right: 6px; vertical-align: middle;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,197,94,.4); }
  50% { opacity: .7; box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

/* ============ 数字滚动计数器 ============ */
.counter-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 0 auto; max-width: 900px; }
.counter-item {
  text-align: center; padding: 24px 16px; border-radius: 14px;
  background: rgba(18,18,26,.5); border: 1px solid rgba(255,255,255,.06);
}
.counter-item .c-num { font-size: 2rem; font-weight: 800; color: #22d3ee; margin-bottom: 4px; }
.counter-item .c-label { font-size: .82rem; color: #64748b; }

/* ============ 分隔线 ============ */
.section-divider {
  border: none; height: 1px; margin: 0;
  background: linear-gradient(90deg, transparent, rgba(99,102,241,.15), transparent);
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .counter-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .header-inner { height: 56px; }
  .nav { display: none; position: absolute; top: 56px; left: 0; right: 0; background: rgba(5,5,16,.95);
    flex-direction: column; padding: 16px; border-bottom: 1px solid rgba(255,255,255,.06);
    box-shadow: 0 8px 32px rgba(0,0,0,.4); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); }
  .nav.open { display: flex; }
  .nav-toggle { display: block; }
  .hero { padding: 60px 0 48px; min-height: auto; }
  .hero h1 { font-size: 1.7rem; }
  .hero-stats { gap: 8px; }
  .hero-stat { padding: 12px 16px; min-width: 0; flex: 1; }
  .hero-stat .num { font-size: 1.2rem; }
  .platform-bar { gap: 16px; }
  .platform-icon .icon-circle { width: 50px; height: 50px; }
  .platform-grid { grid-template-columns: 1fr 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .counter-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .order-info { grid-template-columns: 1fr; }
  .product-detail, .article-content, .query-box, .order-result, .pay-usdt { padding: 24px; }
  .price-box { flex-wrap: wrap; }
  .query-form { flex-direction: column; }
  .product-promo { flex-direction: column; text-align: center; }
  .container, .container-sm { padding: 0 16px; }
  .cta-section h2 { font-size: 1.4rem; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .section { padding: 40px 0; }
}