/* ============ 深色极简·极客风格 ============ */
:root {
  --bg: #0A0A0C;
  --bg-2: #0F0F12;
  --surface: #15151A;
  --surface-2: #1B1B21;
  --border: #26262D;
  --border-2: #33333C;
  --text: #F5F5F7;
  --text-2: #A6A6AE;
  --text-3: #696970;
  --accent: #00D4AA;
  --accent-2: #7C5CFF;
  --accent-dim: rgba(0, 212, 170, 0.12);
  --accent-glow: rgba(0, 212, 170, 0.35);
  --radius: 14px;
  --radius-sm: 9px;
  --max-w: 1280px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: "SF Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* 背景光晕 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(600px 400px at 15% -5%, rgba(0, 212, 170, 0.10), transparent 60%),
    radial-gradient(700px 500px at 85% 0%, rgba(124, 92, 255, 0.10), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

/* ============ 顶栏 ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  background: rgba(10, 10, 12, 0.72);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center;
  font-weight: 800; font-size: 15px; color: #04110D;
  font-family: var(--mono);
}
.logo-text { font-weight: 700; letter-spacing: 0.5px; font-size: 15px; }
.logo-sub { color: var(--text-3); font-size: 12px; display: block; letter-spacing: 2px; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: var(--text-2); font-size: 14px; transition: color .15s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--accent); color: #04110D;
  padding: 8px 18px; border-radius: 999px;
  font-size: 13.5px; font-weight: 600;
  transition: transform .15s, box-shadow .15s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px var(--accent-glow); }

/* ============ Hero ============ */
.hero { padding: 36px 0 24px; text-align: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--border-2);
  background: var(--surface);
  color: var(--text-2); font-size: 12.5px;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }

.hero h1 {
  font-size: clamp(36px, 5.5vw, 56px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.12;
  margin: 16px auto 10px;
  max-width: 880px;
}
.hero h1 .grad {
  background: linear-gradient(120deg, var(--accent), #7ce8d0 45%, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  color: var(--text-2);
  font-size: clamp(15px, 2vw, 18px);
  max-width: 620px;
  margin: 0 auto;
}
.hero-updating {
  margin-top: 14px;
  color: var(--text-3);
  font-size: 13px;
  font-family: var(--mono);
  letter-spacing: 1px;
}

/* 统计数字 */
.stats {
  margin: 22px auto 0;
  display: flex;
  justify-content: center;
  gap: clamp(32px, 6vw, 88px);
  flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-num {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -1px;
  font-family: var(--mono);
}
.stat-num .unit { font-size: 0.55em; color: var(--accent); font-weight: 700; }
.stat-label { color: var(--text-3); font-size: 13px; margin-top: 4px; }

/* ============ 分类标签 ============ */
.filters {
  position: sticky;
  top: 64px;
  z-index: 90;
  background: rgba(10, 10, 12, 0.8);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.filters-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.chip {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--border-2);
  background: transparent;
  color: var(--text-2);
  font-size: 13.5px;
  cursor: pointer;
  font-family: var(--font);
  transition: all .16s;
  white-space: nowrap;
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #04110D;
  font-weight: 600;
}

/* ============ 网格 ============ */
.gallery { padding: 24px 0 96px; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform .2s, border-color .2s, box-shadow .2s;
  display: block;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-2);
  box-shadow: 0 14px 40px rgba(0,0,0,.5);
}
.card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--bg-2);
  overflow: hidden;
}
.card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.card:hover .card-media img { transform: scale(1.05); }
.card-media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(10,10,12,.85));
}
.card-play {
  position: absolute;
  bottom: 10px; right: 12px;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
  display: grid; place-items: center;
  z-index: 2;
  border: 1px solid rgba(255,255,255,.18);
}
.card-play::after {
  content: "";
  width: 0; height: 0;
  border-left: 9px solid #fff;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  margin-left: 2px;
}
.card-tag {
  position: absolute;
  top: 12px; left: 12px;
  padding: 4px 11px;
  border-radius: 7px;
  font-size: 11.5px;
  font-weight: 600;
  z-index: 2;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(0, 212, 170, 0.3);
}
.card-body { padding: 16px 18px 18px; }
.card-name { font-size: 16.5px; font-weight: 650; }
.card-meta {
  margin-top: 8px;
  display: flex; gap: 14px;
  color: var(--text-3);
  font-size: 12px;
  font-family: var(--mono);
}
.card-meta span { display: inline-flex; align-items: center; gap: 5px; }

/* 定制数据卡片 */
.card-custom {
  border: 1.5px dashed var(--border-2);
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 12px;
  min-height: 260px;
  color: var(--text-2);
}
.card-custom:hover { border-color: var(--accent); color: var(--text); }
.card-custom .plus {
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 1.5px solid var(--border-2);
  display: grid; place-items: center;
  font-size: 26px;
  color: var(--accent);
  transition: all .2s;
}
.card-custom:hover .plus { border-color: var(--accent); box-shadow: 0 0 18px var(--accent-glow); }
.card-custom .t { font-size: 17px; font-weight: 650; }
.card-custom .d { font-size: 13px; color: var(--text-3); }

/* ============ 空状态 ============ */
.empty {
  text-align: center;
  color: var(--text-3);
  padding: 80px 0;
  font-size: 15px;
}

/* ============ 页脚 ============ */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 56px;
  color: var(--text-3);
  font-size: 13px;
}
.footer-inner {
  display: flex; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.footer b { color: var(--text-2); font-weight: 600; }

/* ============ 详情页 ============ */
.detail { padding: 40px 0 80px; }
.back {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--text-2); font-size: 14px;
  margin-bottom: 28px;
  padding: 8px 16px;
  border: 1px solid var(--border-2);
  border-radius: 999px;
  transition: all .15s;
}
.back:hover { color: var(--text); border-color: var(--accent); }
.back::before { content: "←"; font-size: 16px; }

.detail-layout {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: 36px;
  align-items: start;
}
@media (max-width: 860px) { .detail-layout { grid-template-columns: 1fr; } }

.player {
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--border);
  aspect-ratio: 16 / 10;
}
.player video { width: 100%; height: 100%; object-fit: contain; display: block; }

.detail-info h1 { font-size: 30px; font-weight: 750; letter-spacing: -0.5px; }
.detail-info .catline {
  margin-top: 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
}
.spec-table {
  margin-top: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.spec-row {
  display: flex;
  border-bottom: 1px solid var(--border);
}
.spec-row:last-child { border-bottom: none; }
.spec-row .k {
  width: 110px;
  padding: 13px 16px;
  color: var(--text-3);
  font-size: 13px;
  background: var(--bg-2);
  flex-shrink: 0;
}
.spec-row .v {
  padding: 13px 16px;
  font-size: 14px;
  font-family: var(--mono);
  color: var(--text);
}
.btn-need {
  margin-top: 26px;
  width: 100%;
  padding: 15px;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: #04110D;
  font-size: 15.5px;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font);
  transition: all .15s;
}
.btn-need:hover { box-shadow: 0 8px 26px var(--accent-glow); transform: translateY(-1px); }

.detail-more { margin-top: 60px; }
.detail-more h2 { font-size: 20px; font-weight: 700; margin-bottom: 20px; }

/* ============ 弹窗 ============ */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.66);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.modal-overlay.show { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  border-radius: 18px;
  padding: 32px;
  max-width: 440px;
  width: 100%;
  transform: translateY(12px);
  transition: transform .2s;
}
.modal-overlay.show .modal { transform: translateY(0); }
.modal h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.modal .sub { color: var(--text-2); font-size: 14px; margin-bottom: 22px; }
.modal label {
  display: block;
  font-size: 13px;
  color: var(--text-2);
  margin: 14px 0 6px;
}
.modal input, .modal textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  resize: vertical;
}
.modal input:focus, .modal textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.modal .row { display: flex; gap: 12px; margin-top: 24px; }
.modal .row button {
  flex: 1;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
}
.btn-submit { background: var(--accent); color: #04110D; border: none; }
.btn-cancel { background: transparent; color: var(--text-2); border: 1px solid var(--border-2); }
.btn-cancel:hover { color: var(--text); }
.modal-note { margin-top: 16px; font-size: 12px; color: var(--text-3); }

/* ============ 响应式 ============ */
@media (max-width: 640px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { padding: 40px 0 28px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
  .container, .nav-inner, .filters-inner { padding-left: 20px; padding-right: 20px; }
}


/* ============ 邮箱咨询弹窗 ============ */
.modal { position: relative; }
.btn-close-x {
  position: absolute; top: 14px; right: 16px;
  background: none; border: none; color: var(--text-3);
  font-size: 26px; line-height: 1; cursor: pointer; padding: 4px;
}
.btn-close-x:hover { color: var(--text); }
.modal .email-box {
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}
.modal .email-label { font-size: 12px; color: var(--text-3); margin-bottom: 6px; }
.modal .email-addr {
  font-size: 17px; font-weight: 700; color: var(--accent);
  letter-spacing: .3px; word-break: break-all; font-family: var(--mono);
}
.btn-mail {
  display: block; width: 100%; padding: 13px; margin-top: 18px;
  background: var(--accent); color: #04110D; border: none;
  border-radius: var(--radius-sm); font-size: 15px; font-weight: 650;
  cursor: pointer; text-align: center; text-decoration: none; font-family: var(--font);
  transition: all .15s; box-sizing: border-box;
}
.btn-mail:hover { box-shadow: 0 8px 26px var(--accent-glow); transform: translateY(-1px); }
.btn-copy {
  display: block; width: 100%; margin-top: 10px; padding: 12px;
  background: transparent; color: var(--text-2);
  border: 1px solid var(--border-2); border-radius: var(--radius-sm);
  font-size: 13.5px; font-weight: 600; cursor: pointer; font-family: var(--font);
  transition: all .15s; box-sizing: border-box;
}
.btn-copy:hover { color: var(--text); border-color: var(--accent); }
.btn-copy.copied { color: var(--accent); border-color: var(--accent); }


/* ============ 数据分布统计 ============ */
.dist { padding: 28px 0 8px; border-top: 1px solid var(--border); text-align: center; }
.dist-title { font-size: 22px; font-weight: 750; letter-spacing: -.5px; margin-bottom: 6px; }
.dist-sub { color: var(--text-2); font-size: 13px; margin-bottom: 16px; }
.chart { max-width: 640px; margin: 0 auto; text-align: left; }
.bar-row { display: flex; align-items: center; gap: 12px; margin-bottom: 7px; }
.bar-label { width: 46px; font-size: 13px; color: var(--text); text-align: right; flex-shrink: 0; }
.bar-track { flex: 1; height: 13px; background: var(--bg-2); border-radius: 5px; overflow: hidden; }
.bar-fill { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2, #7dd3a8)); border-radius: 5px; }
.bar-val { width: 128px; font-size: 12px; color: var(--text-2); font-family: var(--mono); flex-shrink: 0; }
.dist-more {
  display: inline-block; margin-top: 12px; font-size: 13.5px; font-weight: 650;
  color: var(--accent); text-decoration: none;
}
.dist-more:hover { text-decoration: underline; }

/* ============ 数据参数页 ============ */
.params { padding: 40px 0 80px; max-width: 960px; }
.params-title { font-size: 30px; font-weight: 780; letter-spacing: -.5px; margin: 12px 0 8px; }
.params-sub { color: var(--text-2); font-size: 15px; line-height: 1.8; margin-bottom: 36px; }
.param-block { margin-bottom: 40px; }
.param-block h2 { font-size: 20px; font-weight: 720; margin-bottom: 10px; letter-spacing: -.2px; }
.param-desc { color: var(--text-3); font-size: 13px; margin-bottom: 14px; line-height: 1.7; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border-2); border-radius: 12px; }
.params-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 640px; }
.params-table thead th {
  background: var(--surface-2); color: var(--text); font-weight: 650;
  text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border-2);
  white-space: nowrap;
}
.params-table tbody td {
  padding: 11px 14px; border-bottom: 1px solid var(--border);
  color: var(--text-2); vertical-align: top;
}
.params-table tbody tr:last-child td { border-bottom: none; }
.params-table tbody tr:hover td { background: var(--bg-2); }


/* ============ FAQ ============ */
.faq-item { padding: 18px 0; border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-item h3 { font-size: 15px; font-weight: 650; margin-bottom: 8px; color: var(--text); }
.faq-item p { font-size: 14px; color: var(--text-2); line-height: 1.7; }


/* ============ 语言切换 ============ */
.lang {
  padding: 5px 12px;
  border: 1px solid var(--border-2);
  border-radius: 999px;
  font-size: 12px;
  color: var(--text-2);
  cursor: pointer;
  transition: all .15s;
  line-height: 1;
}
.lang:hover { border-color: var(--accent); color: var(--text); }