/* 虚拟销售站 · 前台样式（轻量，无外部依赖） */
:root {
  --slate-900: #0f172a;
  --slate-700: #334155;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --line: #e6ebf2;
  --success: #059669;
  --danger: #dc2626;
  --warning: #d97706;
  --primary: #2563eb;
  --accent: #0ea5e9;
  --bg: #f8fafc;
  --text: #0f172a;
  --radius: 12px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow: 0 12px 32px rgba(15, 23, 42, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 14px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { margin: 0; color: var(--slate-900); font-weight: 650; line-height: 1.35; }
p { margin: 0 0 10px; }
a { color: var(--primary); text-decoration: none; }
a:hover { opacity: .86; }
img { max-width: 100%; display: block; }
code { font-family: "SFMono-Regular", Consolas, monospace; font-size: 12.5px; background: var(--slate-100); padding: 1px 5px; border-radius: 4px; }
pre { font-family: "SFMono-Regular", Consolas, monospace; }

.site-wrap { max-width: 1160px; margin: 0 auto; padding: 0 22px; }
.small { font-size: 12.5px; }
.muted { color: var(--slate-500); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }

/* ------------------------------ 按钮与表单 ------------------------------ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 18px; border-radius: 9px; border: 1px solid transparent;
  font-size: 13.5px; font-weight: 500; font-family: inherit; cursor: pointer;
  background: var(--slate-100); color: var(--slate-700);
  transition: .16s; white-space: nowrap;
}
.btn:hover { background: var(--slate-200); color: var(--slate-900); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary); color: #fff; filter: brightness(1.06); }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--slate-700); }
.btn-ghost:hover { border-color: var(--slate-400); background: #fff; }
.btn-danger { background: #fef2f2; color: var(--danger); border-color: #fecaca; }
.btn-danger:hover { background: #fee2e2; }
.btn-sm { padding: 5px 11px; font-size: 12.5px; border-radius: 7px; }
.btn-lg { padding: 12px 26px; font-size: 15px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12.5px; color: var(--slate-700); margin-bottom: 6px; font-weight: 500; }
.form-group input[type=text], .form-group input[type=password], .form-group input[type=email],
.form-group input[type=number], .form-group input[type=file], .form-group select, .form-group textarea,
.inline-form input, .inline-form select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: 9px;
  background: #fff; font-size: 13.5px; color: var(--slate-900); font-family: inherit;
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus,
.inline-form input:focus, .inline-form select:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}
.inline-form { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.inline-form input, .inline-form select { max-width: 190px; }
.agree { display: flex; align-items: center; gap: 7px; margin-bottom: 16px; color: var(--slate-500); }
.agree input { width: auto; }

.alert { padding: 11px 15px; border-radius: 9px; font-size: 13px; margin-bottom: 16px; border: 1px solid transparent; }
.alert-success { background: #ecfdf5; color: #065f46; border-color: #a7f3d0; }
.alert-error { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.alert-info { background: #eff6ff; color: #1e40af; border-color: #bfdbfe; }
.alert-warning { background: #fffbeb; color: #92400e; border-color: #fde68a; }
.notice {
  margin: 18px 0 0; padding: 12px 16px; border-radius: 10px;
  background: #fffbeb; border: 1px solid #fde68a; color: #92400e; font-size: 13px;
}

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 500; white-space: nowrap; }
.badge-active, .badge-paid { background: #ecfdf5; color: var(--success); }
.badge-pending, .badge-unused { background: #fffbeb; color: var(--warning); }
.badge-closed, .badge-refunded, .badge-muted { background: var(--slate-100); color: var(--slate-500); }
.badge-danger { background: #fef2f2; color: var(--danger); }
.badge-soft { background: #eff6ff; color: var(--primary); }

/* ------------------------------ 头部与页脚 ------------------------------ */
.site-header { background: rgba(255,255,255,.9); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 40; backdrop-filter: blur(8px); }
.header-inner { display: flex; align-items: center; gap: 26px; height: 64px; }
.site-logo { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 16.5px; color: var(--slate-900); }
.logo-mark { color: var(--primary); font-size: 18px; }
.site-nav { display: flex; gap: 20px; flex: 1; font-size: 13.5px; }
.site-nav a { color: var(--slate-500); padding: 4px 0; border-bottom: 2px solid transparent; }
.site-nav a:hover, .site-nav a.active { color: var(--slate-900); border-color: var(--primary); }
.site-actions { display: flex; align-items: center; gap: 12px; }
.link-muted { color: var(--slate-500); }
.balance-chip { background: #eff6ff; color: var(--primary); padding: 4px 12px; border-radius: 999px; font-size: 12.5px; font-weight: 500; }
.site-main { min-height: 62vh; padding: 26px 0 70px; }
.site-footer { border-top: 1px solid var(--line); background: #fff; padding: 28px 0 18px; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; color: var(--slate-500); }
.footer-copy { margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--line); }

/* ------------------------------ 首页 ------------------------------ */
.hero {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: center;
  padding: 46px 0 30px;
}
.hero-tag { display: inline-block; background: #eff6ff; color: var(--primary); border-radius: 999px; padding: 4px 12px; font-size: 12px; margin-bottom: 16px; }
.hero h1 { font-size: 40px; letter-spacing: -1.2px; line-height: 1.2; }
.hero p { margin: 16px 0 22px; color: var(--slate-500); font-size: 15px; max-width: 480px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-points { display: flex; gap: 18px; margin-top: 22px; color: var(--slate-500); flex-wrap: wrap; }
.hero-points span::before { content: "✓"; color: var(--success); margin-right: 5px; }
.hero-panel { display: flex; justify-content: center; }
.hero-card {
  width: 100%; max-width: 340px; background: #fff; border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px); padding: 22px; box-shadow: var(--shadow);
  transform: rotate(-1.5deg);
}
.hero-card-row { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--slate-500); }
.hero-card-key { margin: 16px 0 10px; padding: 14px; border-radius: 10px; background: #eff6ff; color: var(--primary); font-family: "SFMono-Regular", Consolas, monospace; font-size: 16px; letter-spacing: .5px; }
.home-intro { margin: 12px 0 6px; }
.home-intro h2 { font-size: 24px; margin: 18px 0 10px; }
.home-intro p { color: var(--slate-500); }

.section { margin-top: 44px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 18px; gap: 12px; }
.section-head h2 { font-size: 21px; letter-spacing: -.4px; }
.link-more { font-size: 13px; color: var(--primary); }

.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.product-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: .2s; display: flex; flex-direction: column; }
.product-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #c7d2fe; }
.product-cover { position: relative; display: block; height: 168px; background: linear-gradient(135deg, #eef2ff, #e0f2fe); }
.product-cover img { width: 100%; height: 100%; object-fit: cover; }
.cover-placeholder {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 34px; font-weight: 700; color: rgba(37, 99, 235, .55); letter-spacing: 2px;
}
.cover-placeholder.large { position: static; height: 320px; font-size: 60px; border-radius: var(--radius); }
.product-type { position: absolute; top: 10px; left: 10px; background: rgba(255,255,255,.92); color: var(--slate-700); font-size: 11.5px; padding: 2px 9px; border-radius: 999px; }
.product-body { padding: 15px 16px 16px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.product-body h3 { font-size: 15.5px; }
.product-body h3 a { color: var(--slate-900); }
.product-sub { margin: 0; min-height: 19px; }
.product-price { display: flex; align-items: baseline; gap: 8px; margin-top: auto; }
.product-price strong { font-size: 22px; color: var(--primary); letter-spacing: -.5px; }
.product-price del { color: var(--slate-400); font-size: 12.5px; }
.product-foot { display: flex; justify-content: space-between; align-items: center; border-top: 1px dashed var(--line); padding-top: 9px; }

.article-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.article-list { display: grid; gap: 14px; }
.article-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; gap: 0; box-shadow: var(--shadow-sm); }
.article-cover { width: 160px; flex: 0 0 160px; background: var(--slate-100); }
.article-cover img { width: 100%; height: 100%; object-fit: cover; }
.article-body { padding: 16px 18px; }
.article-meta { display: flex; gap: 10px; align-items: center; margin-bottom: 8px; }
.article-body h3 { font-size: 16px; margin-bottom: 6px; }
.article-body h3 a { color: var(--slate-900); }

.cta-band {
  background: linear-gradient(120deg, #eff6ff, #f0f9ff); border: 1px solid #dbeafe;
  border-radius: var(--radius); padding: 26px 28px; display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
}
.cta-band h2 { font-size: 20px; margin-bottom: 4px; }
.cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.auth-entry-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); padding: 26px 28px; display: flex; align-items: center;
  justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.auth-entry-card h2 { font-size: 20px; margin: 8px 0 6px; }
.auth-entry-card p { margin: 0; max-width: 560px; }
.auth-entry-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ------------------------------ 通用页面 ------------------------------ */
.page-header { padding: 8px 0 18px; }
.page-header h1 { font-size: 27px; letter-spacing: -.6px; }
.page-header p { margin: 6px 0 0; }
.breadcrumb { display: flex; gap: 8px; margin: 4px 0 16px; }
.category-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.chip { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 5px 14px; font-size: 12.5px; color: var(--slate-500); }
.chip.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; margin-bottom: 18px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--slate-100); flex-wrap: wrap; }
.card-head h2 { font-size: 15px; }
.card-body { padding: 18px; }
.prose { padding: 22px 24px; }
.prose h2 { font-size: 21px; margin: 22px 0 10px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 16px; margin: 18px 0 8px; }
.prose p, .prose li { color: var(--slate-700); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 5px; }
.prose blockquote { margin: 14px 0; padding: 10px 16px; border-left: 3px solid var(--primary); background: #f8fafc; color: var(--slate-500); }
.page-tip { color: var(--slate-500); font-size: 13px; }

.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 16px 0; }
.feature-card { background: #f8fafc; border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; }
.feature-card h3 { font-size: 15px; margin-bottom: 5px; }
.feature-card p { margin: 0; color: var(--slate-500); font-size: 13px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { background: #f8fafc; border: 1px solid var(--line); border-radius: 10px; padding: 15px 18px; }
.faq-item h3 { font-size: 14.5px; margin-bottom: 5px; }
.faq-item p { margin: 0; color: var(--slate-500); font-size: 13px; }

.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th { text-align: left; padding: 10px 16px; background: var(--slate-100); color: var(--slate-500); font-weight: 500; font-size: 12px; white-space: nowrap; }
.table td { padding: 12px 16px; border-bottom: 1px solid var(--slate-100); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: #fbfcfe; }
.mono { font-family: "SFMono-Regular", Consolas, monospace; font-size: 12.5px; }
.empty-box { padding: 44px 18px; text-align: center; color: var(--slate-400); font-size: 13px; }
.pagination { display: flex; gap: 8px; justify-content: center; align-items: center; padding: 18px; }
.pagination a, .pagination span.current, .pagination span:not(.current) {
  min-width: 34px; height: 32px; padding: 0 10px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: 8px; background: #fff; font-size: 12.5px; color: var(--slate-500);
}
.pagination span.current { background: var(--primary); border-color: var(--primary); color: #fff; }
.detail-list { display: grid; grid-template-columns: 110px 1fr; gap: 10px 14px; font-size: 13px; margin: 0; }
.detail-list dt { color: var(--slate-500); }
.detail-list dd { margin: 0; color: var(--slate-900); word-break: break-all; }
.detail-list.compact { grid-template-columns: 90px 1fr; }

/* ------------------------------ 商品详情 ------------------------------ */
.product-detail { display: grid; grid-template-columns: 1.05fr 1fr; gap: 28px; margin-bottom: 22px; }
.detail-cover { background: linear-gradient(135deg, #eef2ff, #e0f2fe); border-radius: var(--radius); overflow: hidden; min-height: 340px; }
.detail-cover img { width: 100%; height: 100%; object-fit: cover; }
.detail-body h1 { font-size: 27px; letter-spacing: -.6px; }
.detail-price { display: flex; align-items: baseline; gap: 10px; margin: 18px 0; }
.detail-price strong { font-size: 34px; color: var(--primary); letter-spacing: -1px; }
.detail-meta { display: grid; grid-template-columns: 90px 1fr; gap: 8px 12px; padding: 14px 0; border-top: 1px dashed var(--line); border-bottom: 1px dashed var(--line); }
.detail-meta dt { color: var(--slate-500); }
.detail-meta dd { margin: 0; }
.buy-panel { margin-top: 18px; padding: 18px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.pay-methods { display: grid; gap: 10px; margin-bottom: 16px; }
.pay-method { display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; cursor: pointer; font-size: 13.5px; }
.pay-method input { width: auto; }
.pay-method small { margin-left: auto; }
.pay-method:has(input:checked) { border-color: var(--primary); background: #eff6ff; }
.buy-panel .btn-lg { width: 100%; }

/* ------------------------------ 登录 / 注册 ------------------------------ */
.auth-body { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 30px 20px; }
.auth-shell { width: 100%; max-width: 420px; }
.auth-logo { display: flex; align-items: center; justify-content: center; gap: 8px; font-weight: 700; font-size: 18px; color: var(--slate-900); margin-bottom: 20px; }
.auth-card { background: #fff; border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px); padding: 30px 28px; box-shadow: var(--shadow); }
.auth-card h1 { font-size: 22px; margin-bottom: 4px; }
.auth-card .sub { margin-bottom: 22px; }
.auth-switch { margin: 16px 0 0; text-align: center; }
.auth-links { margin-top: 16px; text-align: center; }
.auth-links span { margin: 0 6px; }

/* ------------------------------ 会员中心 ------------------------------ */
.member-layout { display: grid; grid-template-columns: 220px 1fr; gap: 24px; padding-top: 26px; padding-bottom: 60px; }
.member-aside { display: flex; flex-direction: column; gap: 14px; }
.member-card { display: flex; align-items: center; gap: 12px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.member-card .avatar { width: 42px; height: 42px; border-radius: 50%; background: #eff6ff; color: var(--primary); display: flex; align-items: center; justify-content: center; font-weight: 700; }
.member-nav { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 8px; display: flex; flex-direction: column; }
.member-nav a { padding: 9px 12px; border-radius: 8px; color: var(--slate-700); font-size: 13.5px; }
.member-nav a:hover { background: var(--slate-100); }
.member-nav a.active { background: #eff6ff; color: var(--primary); font-weight: 500; }
.member-main { min-width: 0; }
.page-heading { font-size: 21px; margin-bottom: 18px; }
.stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 15px 17px; display: flex; flex-direction: column; gap: 3px; }
.stat-label { font-size: 12px; color: var(--slate-500); }
.stat-value { font-size: 25px; letter-spacing: -.6px; }
.stat-link { color: var(--primary); }
.stat-hint { font-size: 12px; }
.tab-bar { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.tab { padding: 6px 14px; border-radius: 8px; background: #fff; border: 1px solid var(--line); font-size: 12.5px; color: var(--slate-500); }
.tab.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.wallet-head { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.wallet-balance { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 6px; align-items: flex-start; }
.wallet-balance .small { color: rgba(255,255,255,.8); }
.wallet-balance strong { font-size: 32px; letter-spacing: -1px; }
.wallet-balance .btn { background: #fff; color: var(--primary); margin-top: 8px; }
.wallet-recharge { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.quick-amounts { display: flex; gap: 8px; margin-top: 10px; }
.quick-amounts button { border: 1px solid var(--line); background: #fff; border-radius: 7px; padding: 4px 12px; font-size: 12.5px; color: var(--slate-500); cursor: pointer; }
.quick-amounts button:hover { border-color: var(--primary); color: var(--primary); }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.pay-actions { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.deliver-block { margin-top: 18px; padding: 16px; border: 1px dashed #a7f3d0; background: #ecfdf5; border-radius: 10px; }
.deliver-content { margin: 8px 0 12px; padding: 14px; background: #fff; border-radius: 8px; border: 1px solid #a7f3d0; font-size: 15px; color: #065f46; white-space: pre-wrap; word-break: break-all; }

/* ------------------------------ 支付页 ------------------------------ */
.pay-wrap { max-width: 720px; padding-top: 34px; }
.pay-card { background: #fff; border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px); box-shadow: var(--shadow-sm); overflow: hidden; }
.pay-card-head { padding: 20px 24px; border-bottom: 1px solid var(--slate-100); }
.pay-card-head h1 { font-size: 19px; }
.pay-card-body { padding: 26px 24px; text-align: center; }
.pay-amount { font-size: 34px; font-weight: 700; letter-spacing: -1px; margin-bottom: 18px; }
.pay-amount small { font-size: 14px; font-weight: 400; }
.qr-box { display: inline-block; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.qr-box img, .qr-box canvas { display: block; }
.pay-tip { color: var(--slate-500); font-size: 13px; margin-top: 14px; }
.pay-meta-list { margin-top: 20px; text-align: left; }
.pay-meta { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--line); font-size: 13px; color: var(--slate-500); }
.pay-meta:last-child { border-bottom: none; }
.pay-success { padding: 16px 0 6px; }
.success-icon { width: 54px; height: 54px; border-radius: 50%; background: #ecfdf5; color: var(--success); font-size: 28px; display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; }
.pay-success h2 { font-size: 20px; margin-bottom: 6px; }

/* ------------------------------ 授权激活 ------------------------------ */
.activate-wrap { display: flex; justify-content: center; padding: 44px 0 70px; }
.activate-card { width: 100%; max-width: 520px; background: #fff; border: 1px solid var(--line); border-radius: calc(var(--radius) + 6px); box-shadow: var(--shadow); padding: 34px 32px; }
.activate-card h1 { font-size: 25px; margin: 10px 0 8px; letter-spacing: -.6px; }
.activate-tips { margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--line); }
.activate-tips p { margin-bottom: 4px; }
.activate-admin { margin-top: 16px; text-align: center; }
.auth-switch a { font-weight: 500; }

/* ------------------------------ 响应式 ------------------------------ */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding-top: 28px; }
  .hero h1 { font-size: 32px; }
  .hero-panel { display: none; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .member-layout { grid-template-columns: 1fr; }
  .member-nav { flex-direction: row; overflow-x: auto; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-detail { grid-template-columns: 1fr; }
  .detail-cover { min-height: 240px; }
}
@media (max-width: 760px) {
  .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; gap: 12px; }
  .site-nav { order: 3; width: 100%; overflow-x: auto; padding-bottom: 4px; }
  .site-actions { margin-left: auto; }
  .product-grid, .article-grid, .grid-2, .wallet-head, .feature-grid { grid-template-columns: 1fr; }
  .article-card { flex-direction: column; }
  .article-cover { width: 100%; flex: none; height: 150px; }
  .hero h1 { font-size: 27px; }
  .stat-grid { grid-template-columns: 1fr; }
  .detail-list { grid-template-columns: 90px 1fr; }
  .activate-card { padding: 24px 20px; }
  .pay-card-body { padding: 20px 16px; }
}
/* ------------------------------ 论坛 ------------------------------ */
.forum-board-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.forum-board-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow-sm); transition: .18s; }
.forum-board-card:hover { border-color: #c7d2fe; box-shadow: var(--shadow); transform: translateY(-2px); }
.forum-board-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.forum-board-head h2 { font-size: 16px; }
.forum-toolbar { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; padding: 6px 0 18px; flex-wrap: wrap; }
.forum-toolbar h1 { font-size: 24px; }
.thread-list { display: flex; flex-direction: column; }
.thread-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 18px; border-bottom: 1px solid var(--slate-100); }
.thread-row:last-child { border-bottom: none; }
.thread-row:hover { background: #fbfcfe; }
.thread-title { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 14.5px; }
.thread-title a { color: var(--slate-900); }
.thread-meta { display: flex; gap: 12px; margin-top: 3px; flex-wrap: wrap; }
.thread-stats { display: flex; gap: 12px; white-space: nowrap; }
.forum-thread-head { padding: 18px 20px 10px; border-bottom: 1px solid var(--slate-100); }
.forum-thread-head h1 { font-size: 22px; margin: 6px 0 8px; }
.forum-thread-tags { display: flex; gap: 6px; }
.forum-thread-body { padding: 18px 20px; }
.forum-content { color: var(--slate-700); white-space: pre-line; word-break: break-word; }
.forum-content p { margin: 0 0 10px; }
.forum-content pre { background: var(--slate-100); padding: 12px; border-radius: 8px; overflow: auto; }
.forum-content img { border-radius: 8px; margin: 8px 0; }
.forum-content blockquote { border-left: 3px solid var(--primary); padding-left: 12px; color: var(--slate-500); margin: 10px 0; }
.forum-image { max-width: 100%; border-radius: 10px; margin-bottom: 12px; }
.forum-image.small { max-width: 320px; }
.forum-thread-actions { display: flex; align-items: center; gap: 16px; padding: 10px 20px 16px; border-top: 1px dashed var(--line); flex-wrap: wrap; }
.inline-report summary { cursor: pointer; }
.inline-report form { margin-top: 8px; }
.post-list { display: flex; flex-direction: column; }
.forum-post { display: grid; grid-template-columns: 120px 1fr; gap: 16px; padding: 16px 18px; border-bottom: 1px solid var(--slate-100); }
.forum-post:last-child { border-bottom: none; }
.post-side { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; }
.post-side .avatar { width: 38px; height: 38px; border-radius: 50%; background: #eff6ff; color: var(--primary); display: flex; align-items: center; justify-content: center; font-weight: 700; }
.post-main { min-width: 0; }
.post-meta { display: flex; gap: 10px; align-items: center; margin-bottom: 6px; flex-wrap: wrap; }
.update-notes { margin: 0 0 12px; padding-left: 20px; color: var(--slate-500); }
@media (max-width: 900px) {
  .forum-board-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .forum-post { grid-template-columns: 1fr; }
  .post-side { flex-direction: row; text-align: left; }
}
@media (max-width: 640px) {
  .forum-board-grid { grid-template-columns: 1fr; }
  .thread-row { align-items: flex-start; flex-direction: column; gap: 6px; }
}