/* ============================================
 * 口令码大全 · 深色电竞风
 * ============================================ */

/* === 变量 === */
:root {
  --bg-0: #060914;
  --bg-1: #0d1428;
  --bg-2: #131b35;

  --line: rgba(120, 140, 200, 0.15);
  --line-2: rgba(120, 140, 200, 0.3);

  --card: rgba(20, 28, 56, 0.55);
  --card-hover: rgba(28, 38, 76, 0.75);

  --text-0: #e6eaf5;
  --text-1: #aab2cc;
  --text-2: #707898;

  --c-cyan: #00e5ff;
  --c-cyan-dim: rgba(0, 229, 255, 0.15);
  --c-purple: #b066ff;
  --c-purple-dim: rgba(176, 102, 255, 0.18);
  --c-green: #00ff95;
  --c-green-dim: rgba(0, 255, 149, 0.18);
  --c-pink: #ff5b9b;
  --c-yellow: #ffd23f;

  --grad-primary: linear-gradient(135deg, #00e5ff 0%, #b066ff 100%);
  --grad-hot: linear-gradient(135deg, #ff5b9b 0%, #ffd23f 100%);

  --shadow-glow: 0 0 40px rgba(0, 229, 255, 0.15);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);

  --radius: 14px;
  --radius-lg: 22px;

  --container: 1280px;
}

/* === 基础重置 === */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 100px; }

body {
  margin: 0;
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-0);
  background: var(--bg-0);
  background-image:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(0, 229, 255, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 80% 60% at 80% 100%, rgba(176, 102, 255, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: color 0.2s; }
button { font-family: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }
code { font-family: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace; }

/* === 容器 === */
.container,
.nav-inner,
.hero-content,
.tabs-inner,
.footer-grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
 * 顶部导航
 * ============================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(6, 9, 20, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 28px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.logo-icon {
  font-size: 24px;
  filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.5));
}

.logo-text em {
  font-style: normal;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-left: 2px;
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 4px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-menu::-webkit-scrollbar { display: none; }

.nav-menu a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-1);
  border-radius: 8px;
  white-space: nowrap;
  transition: all 0.2s;
}

.nav-menu a:hover {
  color: var(--text-0);
  background: rgba(255, 255, 255, 0.04);
}

.nav-menu a.active {
  color: var(--c-cyan);
  background: var(--c-cyan-dim);
  box-shadow: inset 0 0 0 1px rgba(0, 229, 255, 0.25);
}

.brand-btn {
  flex-shrink: 0;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-0);
  background: var(--grad-primary);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 229, 255, 0.25);
  transition: transform 0.2s, box-shadow 0.2s;
}

.brand-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(0, 229, 255, 0.4);
}

/* ============================================
 * Hero 区
 * ============================================ */
.hero {
  position: relative;
  padding: 88px 0 56px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 70% at 30% 30%, rgba(0, 229, 255, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse 50% 70% at 70% 70%, rgba(176, 102, 255, 0.18) 0%, transparent 60%);
  pointer-events: none;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 140, 200, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 140, 200, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent);
}

.hero-content {
  position: relative;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  margin-bottom: 24px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-cyan);
  background: var(--c-cyan-dim);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: 999px;
}

.dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--c-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--c-green);
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.hero-title {
  margin: 0 0 16px;
  font-size: clamp(34px, 5.5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.grad {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  margin: 0 0 36px;
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--text-1);
}
.hero-sub strong {
  color: var(--c-cyan);
  font-weight: 600;
}

.hero-search {
  position: relative;
  max-width: 560px;
  margin: 0 auto 48px;
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  opacity: 0.6;
}

#searchInput {
  width: 100%;
  padding: 16px 80px 16px 48px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text-0);
  background: var(--card);
  border: 1px solid var(--line-2);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  outline: none;
  transition: all 0.2s;
}

#searchInput::placeholder { color: var(--text-2); }

#searchInput:focus {
  border-color: var(--c-cyan);
  background: rgba(20, 28, 56, 0.8);
  box-shadow: 0 0 0 4px var(--c-cyan-dim);
}

.hero-search kbd {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  padding: 3px 8px;
  font-family: inherit;
  font-size: 11px;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: 5px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.stat { text-align: center; }

.stat-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}

.stat-label {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-2);
}

/* ============================================
 * Tab 切换
 * ============================================ */
.tabs-wrap {
  position: sticky;
  top: 64px;
  z-index: 40;
  background: rgba(6, 9, 20, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  margin-bottom: 48px;
}

.tabs-inner {
  display: flex;
  gap: 8px;
  padding: 16px 24px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs-inner::-webkit-scrollbar { display: none; }

.tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  background: var(--card);
  border: 1px solid transparent;
  border-radius: 10px;
  white-space: nowrap;
  transition: all 0.2s;
}

.tab:hover {
  color: var(--text-0);
  background: var(--card-hover);
}

.tab.active {
  color: var(--c-cyan);
  background: var(--c-cyan-dim);
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.15);
}

.tab-icon { font-size: 16px; }

.tab-count {
  display: inline-block;
  min-width: 22px;
  padding: 1px 7px;
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  text-align: center;
}

.tab.active .tab-count {
  background: rgba(0, 229, 255, 0.25);
  color: var(--c-cyan);
}

/* ============================================
 * Section 标题
 * ============================================ */
.section {
  margin-bottom: 80px;
}

.section-head {
  margin-bottom: 32px;
}

.section-head h2 {
  margin: 0 0 8px;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-head p {
  margin: 0;
  font-size: 14px;
  color: var(--text-2);
}

.code-inline {
  padding: 2px 8px;
  font-size: 12px;
  color: var(--c-cyan);
  background: var(--c-cyan-dim);
  border: 1px solid rgba(0, 229, 255, 0.25);
  border-radius: 5px;
}

/* ============================================
 * 卡片网格
 * ============================================ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
}

/* === 卡片 === */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: all 0.25s ease;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 1px;
  background: linear-gradient(135deg, transparent 30%, rgba(0, 229, 255, 0.4) 50%, transparent 70%);
  border-radius: var(--radius);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
  background: var(--card-hover);
  border-color: transparent;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 229, 255, 0.1);
}

.card:hover::before { opacity: 1; }

.card.featured { border-color: rgba(0, 255, 149, 0.25); }
.card.featured::before {
  background: linear-gradient(135deg, transparent 30%, rgba(0, 255, 149, 0.5) 50%, transparent 70%);
}

.card-tag {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 3px 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--c-green);
  background: var(--c-green-dim);
  border: 1px solid rgba(0, 255, 149, 0.3);
  border-radius: 4px;
}

.card-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.card-logo {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  font-size: 26px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  flex-shrink: 0;
  overflow: hidden;
}
.card-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.card-logo-fb {
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.1) 0%, rgba(176, 102, 255, 0.1) 100%);
}

.card-title {
  flex: 1;
  min-width: 0;
}

.card-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-duration {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--c-yellow);
  background: rgba(255, 210, 63, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.card-desc {
  margin: 0 0 16px;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
  min-height: 40px;
}

.card-code {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: rgba(6, 9, 20, 0.6);
  border: 1px dashed var(--line-2);
  border-radius: 10px;
  margin-bottom: 14px;
}

.code-label {
  font-size: 11px;
  color: var(--text-2);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.code-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.05em;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-0);
  background: rgba(0, 229, 255, 0.12);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: 8px;
  transition: all 0.2s;
}

.copy-btn:hover {
  background: rgba(0, 229, 255, 0.2);
  border-color: var(--c-cyan);
  transform: scale(1.04);
}

.copy-btn.copied {
  background: rgba(0, 255, 149, 0.15);
  border-color: rgba(0, 255, 149, 0.4);
  color: var(--c-green);
}

.card-link {
  margin-top: 4px;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-1);
  padding: 10px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  transition: all 0.2s;
}

.card-link:hover {
  color: var(--c-cyan);
  background: rgba(0, 229, 255, 0.08);
}

/* === Empty === */
.empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-2);
  background: var(--card);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

.empty-icon {
  font-size: 40px;
  margin-bottom: 12px;
  opacity: 0.5;
}

/* ============================================
 * FAQ
 * ============================================ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.2s;
}

.faq-item.open {
  border-color: rgba(0, 229, 255, 0.3);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s;
}

.faq-q:hover { background: rgba(255, 255, 255, 0.02); }

.faq-q-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  margin-left: 16px;
  color: var(--c-cyan);
  background: var(--c-cyan-dim);
  border-radius: 50%;
  font-weight: 700;
  transition: transform 0.3s;
}

.faq-item.open .faq-q-icon { transform: rotate(45deg); }

.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}

.faq-item.open .faq-a {
  grid-template-rows: 1fr;
}

.faq-a-inner {
  overflow: hidden;
}

.faq-a-inner > div {
  padding: 0 24px 20px;
  color: var(--text-1);
  font-size: 14px;
  line-height: 1.7;
}

/* === 联系 === */
.contact-box {
  margin-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 28px;
  background: linear-gradient(135deg, var(--c-cyan-dim) 0%, var(--c-purple-dim) 100%);
  border: 1px solid rgba(176, 102, 255, 0.25);
  border-radius: var(--radius);
  flex-wrap: wrap;
}

.contact-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-sub {
  font-size: 13px;
  color: var(--text-1);
}
.contact-sub strong { color: var(--c-yellow); }

.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 600;
  color: var(--bg-0);
  background: var(--grad-primary);
  border-radius: 10px;
  transition: transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 229, 255, 0.4);
}

/* ============================================
 * 使用教程
 * ============================================ */
.tutorial-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}

.step-card {
  display: flex;
  gap: 20px;
  padding: 22px 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--c-cyan);
  border-radius: var(--radius);
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.step-card:nth-child(2n) { border-left-color: var(--c-purple); }
.step-card:nth-child(3n) { border-left-color: var(--c-green); }
.step-card:nth-child(4n) { border-left-color: var(--c-pink); }

.step-card:hover {
  background: var(--card-hover);
  transform: translateX(4px);
}

.step-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  font-size: 22px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.12) 0%, rgba(176, 102, 255, 0.12) 100%);
  border: 1px solid var(--line-2);
  border-radius: 12px;
}

.step-body { flex: 1; min-width: 0; }

.step-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-0);
}

.step-desc {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-1);
}

.step-tip {
  display: inline-block;
  padding: 5px 12px;
  font-size: 12px;
  color: var(--c-yellow);
  background: rgba(255, 210, 63, 0.08);
  border: 1px dashed rgba(255, 210, 63, 0.3);
  border-radius: 6px;
}

/* === 兑换小贴士 === */
.tips-box {
  margin-top: 24px;
  padding: 24px 28px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.06) 0%, rgba(176, 102, 255, 0.06) 100%);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
}

.tips-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--c-cyan);
}

.tips-list {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
  color: var(--text-1);
  line-height: 1.9;
}

.tips-list strong { color: var(--c-yellow); }
.tips-list a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-decoration-color: rgba(0, 229, 255, 0.3);
  text-underline-offset: 3px;
}
.tips-list a:hover { color: var(--text-0); }

/* ============================================
 * 详情页(兑换教程页)
 * ============================================ */
.detail-page {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 24px 60px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text-1);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: all 0.2s;
}
.back-link:hover { color: var(--c-cyan); border-color: var(--c-cyan-dim); }

.detail-hero {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 28px;
  margin-bottom: 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.detail-logo {
  width: 92px;
  height: 92px;
  display: grid;
  place-items: center;
  font-size: 44px;
  flex-shrink: 0;
  background: #ffffff;
  border: 1px solid var(--line-2);
  border-radius: 18px;
  overflow: hidden;
}
.detail-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.detail-eyebrow {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.detail-hero h1 {
  margin: 0 0 12px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.detail-meta .card-duration {
  font-size: 13px;
  padding: 3px 10px;
}
.detail-meta .card-desc {
  font-size: 13px;
  color: var(--text-1);
}

/* 口令展示框 */
.detail-code-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 28px;
  margin-bottom: 28px;
  background: linear-gradient(135deg, var(--c-cyan-dim) 0%, var(--c-purple-dim) 100%);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}

.detail-code-label {
  font-size: 12px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.detail-code-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.detail-code-box .copy-btn {
  padding: 12px 22px;
  font-size: 14px;
}

/* 详情页步骤区 */
.detail-page h2 {
  margin: 0 0 20px;
  font-size: 20px;
  font-weight: 700;
}

/* 底部 CTA */
.detail-cta {
  margin-top: 32px;
  text-align: center;
}
.detail-cta .contact-btn {
  display: inline-flex;
}

/* === 信息网格(详情页元数据) === */
.detail-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.info-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}
.info-card:hover { border-color: var(--line-2); }
.info-card-wide {
  grid-column: 1 / -1;
}

.info-icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  font-size: 18px;
  flex-shrink: 0;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.12) 0%, rgba(176, 102, 255, 0.12) 100%);
  border: 1px solid var(--line-2);
  border-radius: 8px;
}

.info-label {
  font-size: 11px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.info-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-0);
  line-height: 1.4;
}

.info-value-mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.05em;
}

.info-sub {
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-2);
  line-height: 1.5;
}

@media (max-width: 600px) {
  .detail-info-grid { grid-template-columns: 1fr; }
  .info-card-wide { grid-column: auto; }
}

/* 详情页 footer 精简 */
.footer.compact {
  margin-top: 0;
  padding: 32px 0 16px;
}

@media (max-width: 600px) {
  .detail-hero { flex-direction: column; align-items: flex-start; padding: 20px; }
  .detail-logo { width: 72px; height: 72px; font-size: 36px; }
  .detail-hero h1 { font-size: 22px; }
  .detail-code-box { padding: 18px 20px; }
  .detail-code-value { font-size: 22px; }
  .detail-page { padding-top: 16px; }
}

/* ============================================
 * Toast
 * ============================================ */
.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  z-index: 200;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--bg-0);
  background: var(--c-cyan);
  border-radius: 999px;
  box-shadow: 0 8px 32px rgba(0, 229, 255, 0.4);
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============================================
 * Footer
 * ============================================ */
.footer {
  margin-top: 80px;
  padding: 48px 0 24px;
  background: rgba(6, 9, 20, 0.6);
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 32px;
}

.footer-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-0);
  margin-bottom: 14px;
}

.footer-grid a {
  display: block;
  padding: 5px 0;
  font-size: 13px;
  color: var(--text-1);
}

.footer-grid a:hover { color: var(--c-cyan); }

.footer-copy {
  padding: 24px 24px 0;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 12px;
  color: var(--text-2);
}
.footer-copy p { margin: 4px 0; }
.footer-fine { opacity: 0.7; font-size: 11px; }

/* ============================================
 * 响应式
 * ============================================ */
@media (max-width: 900px) {
  .nav-menu { display: none; }
  .hero { padding: 56px 0 40px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-box { flex-direction: column; align-items: stretch; }
}

@media (max-width: 600px) {
  .nav-inner { gap: 12px; }
  .logo-text em { display: none; }
  .grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .card { padding: 18px; }
  .step-card { padding: 16px 18px; gap: 14px; }
  .step-icon { width: 40px; height: 40px; font-size: 18px; }
  .faq-q { padding: 16px 18px; }
  .faq-a-inner > div { padding: 0 18px 16px; }
}

@media (max-width: 380px) {
  .footer-grid { grid-template-columns: 1fr; }
  .stat { flex: 1 0 40%; }
}

/* ============================================
 * 游戏加速器列表页 (/jiasu/)
 * ============================================ */
.jiasu-list {
  max-width: var(--container);
  margin: 0 auto;
  padding: 24px 24px 60px;
}

.jiasu-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 16px 20px;
  margin-bottom: 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}

.filter-label {
  font-size: 13px;
  color: var(--text-2);
  margin-right: 6px;
}

.filter-btn {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-1);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:hover {
  color: var(--text-0);
  border-color: var(--line-2);
}
.filter-btn.active {
  color: #060914;
  background: var(--grad-primary);
  border-color: transparent;
}

.jiasu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.jiasu-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}
.jiasu-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.06) 0%, rgba(176, 102, 255, 0.06) 100%);
  opacity: 0;
  transition: opacity 0.25s;
}
.jiasu-card:hover {
  border-color: var(--line-2);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.jiasu-card:hover::before { opacity: 1; }
.jiasu-card.hidden { display: none; }
.jiasu-card > * { position: relative; }

.jiasu-card-top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.jiasu-logo {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  font-size: 24px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.jiasu-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.jiasu-title {
  flex: 1;
  min-width: 0;
}

.jiasu-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-0);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.jiasu-company {
  font-size: 11px;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.jiasu-platform {
  flex-shrink: 0;
  padding: 4px 9px;
  font-size: 11px;
  font-weight: 700;
  color: #00b8d4;
  background: rgba(0, 184, 212, 0.1);
  border: 1px solid rgba(0, 184, 212, 0.3);
  border-radius: 6px;
  letter-spacing: 0.05em;
}

.jiasu-desc {
  margin: 0;
  font-size: 13px;
  color: var(--text-1);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.jiasu-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.jiasu-pricing,
.jiasu-size,
.jiasu-year {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.jiasu-pricing {
  border-width: 1px;
  border-style: solid;
}

.jiasu-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-cyan);
}
.jiasu-cta .arrow { transition: transform 0.2s; }
.jiasu-card:hover .arrow { transform: translateX(4px); }

@media (max-width: 600px) {
  .jiasu-grid { grid-template-columns: 1fr; }
  .jiasu-filter { padding: 12px; gap: 6px; }
  .filter-btn { padding: 5px 10px; font-size: 12px; }
  .filter-label { width: 100%; margin-bottom: 4px; }
}

/* ============================================
 * 官方下载板块(详情页)
 * ============================================ */
.download-box {
  margin-bottom: 24px;
  padding: 22px 24px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.06) 0%, rgba(176, 102, 255, 0.06) 100%);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-lg);
}
.download-box-fallback {
  background: linear-gradient(135deg, rgba(255, 91, 155, 0.04) 0%, rgba(255, 210, 63, 0.04) 100%);
  border-color: rgba(255, 210, 63, 0.25);
}
.download-box-empty {
  background: linear-gradient(135deg, rgba(255, 210, 63, 0.04) 0%, rgba(176, 102, 255, 0.04) 100%);
  border-color: rgba(255, 210, 63, 0.25);
}

.download-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-0);
  margin-bottom: 10px;
}

.download-tip {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-1);
}
.download-tip code {
  padding: 1px 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  background: rgba(0, 229, 255, 0.1);
  color: var(--c-cyan);
  border-radius: 4px;
}

.download-actions {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 10px;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  text-decoration: none;
  border-radius: 12px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.download-btn:hover {
  transform: translateY(-2px);
}

.download-btn-primary {
  background: var(--grad-primary);
  color: #060914;
  border: 1px solid transparent;
  box-shadow: 0 4px 20px rgba(0, 229, 255, 0.25);
}
.download-btn-primary:hover {
  box-shadow: 0 8px 30px rgba(0, 229, 255, 0.4);
}

.download-btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-0);
  border: 1px solid var(--line-2);
}
.download-btn-secondary:hover {
  border-color: var(--c-cyan);
  background: rgba(0, 229, 255, 0.06);
}

.download-btn-full {
  grid-column: 1 / -1;
}

.dl-icon {
  flex-shrink: 0;
  font-size: 24px;
  line-height: 1;
}

.dl-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.dl-label {
  font-size: 14px;
  font-weight: 700;
}

.dl-domain {
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  opacity: 0.7;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dl-arrow {
  font-size: 18px;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.download-btn:hover .dl-arrow {
  transform: translate(2px, -2px);
}

.download-warning {
  margin-top: 14px;
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-2);
  background: rgba(255, 210, 63, 0.06);
  border: 1px dashed rgba(255, 210, 63, 0.25);
  border-radius: 8px;
}
.download-warning strong { color: var(--c-yellow); }

@media (max-width: 600px) {
  .download-actions { grid-template-columns: 1fr; }
  .download-box { padding: 16px; }
  .dl-label { font-size: 13px; }
}

/* ============================================
 * 上一篇 / 下一篇 翻页
 * ============================================ */
.prev-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 32px 0 8px;
  padding-top: 24px;
  border-top: 1px dashed var(--line-2);
}

.pn-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
  min-width: 0;
}
.pn-card:hover {
  border-color: var(--line-2);
  background: var(--card-hover);
  transform: translateY(-1px);
}

.pn-next {
  text-align: right;
  align-items: flex-end;
}

.pn-eyebrow {
  font-size: 11px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

.pn-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-0);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.pn-duration {
  font-size: 11px;
  color: var(--text-2);
}

@media (max-width: 600px) {
  .prev-next { grid-template-columns: 1fr; }
  .pn-next { text-align: left; align-items: flex-start; }
}

/* ============================================
 * FAQ · "没有解决问题?"反馈卡片
 * ============================================ */
.faq-notresolved {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  padding: 22px 24px;
  background: linear-gradient(135deg, rgba(255, 91, 155, 0.04) 0%, rgba(255, 210, 63, 0.04) 100%);
  border: 1px solid rgba(255, 210, 63, 0.25);
  border-radius: var(--radius-lg);
}

.faq-notresolved-icon {
  flex-shrink: 0;
  font-size: 32px;
  line-height: 1;
}

.faq-notresolved-body { flex: 1; min-width: 0; }

.faq-notresolved-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-0);
  margin-bottom: 4px;
}

.faq-notresolved-sub {
  font-size: 13px;
  color: var(--text-1);
  margin-bottom: 14px;
}

.faq-notresolved-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.faq-notresolved-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-0);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}
.faq-notresolved-btn:hover {
  border-color: var(--line-2);
  background: rgba(255, 255, 255, 0.08);
}
.faq-notresolved-btn-alt {
  color: var(--c-cyan);
  border-color: rgba(0, 229, 255, 0.3);
}
.faq-notresolved-btn-alt:hover {
  background: rgba(0, 229, 255, 0.08);
}
.faq-notresolved-btn-primary {
  color: #060914;
  background: var(--grad-primary);
  border-color: transparent;
  font-weight: 700;
}
.faq-notresolved-btn-primary:hover {
  filter: brightness(1.1);
}

/* === 反馈面板 === */
.faq-feedback-panel {
  margin-top: 14px;
  padding: 16px;
  background: rgba(6, 9, 20, 0.6);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.fb-row {
  margin-bottom: 12px;
}
.fb-row label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-1);
}
.fb-row input,
.fb-row textarea {
  width: 100%;
  padding: 10px 12px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-0);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 8px;
  resize: vertical;
  transition: border-color 0.2s, background 0.2s;
}
.fb-row input:focus,
.fb-row textarea:focus {
  outline: none;
  border-color: var(--c-cyan);
  background: rgba(0, 229, 255, 0.04);
}
.fb-row textarea { min-height: 100px; }

.fb-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}
.fb-submit,
.fb-cancel {
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 700;
  font-family: inherit;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
}
.fb-submit {
  color: #060914;
  background: var(--grad-primary);
}
.fb-submit:hover { filter: brightness(1.1); }
.fb-submit:disabled { opacity: 0.5; cursor: not-allowed; }
.fb-cancel {
  color: var(--text-1);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
}
.fb-cancel:hover { color: var(--text-0); border-color: var(--line-2); }

.fb-hint {
  font-size: 11px;
  color: var(--text-2);
  line-height: 1.6;
}

@media (max-width: 600px) {
  .faq-notresolved { flex-direction: column; padding: 16px; }
  .faq-notresolved-btn { padding: 7px 12px; font-size: 12px; }
}