/* ============ ApiNebula 首页样式 ============ */
:root {
  --bg: #faf7f1;
  --bg-alt: #f5f1e8;
  --card: #fffdf9;
  --border: #eae2d3;
  --text: #1c1a17;
  --text-sub: #6f6a60;
  --accent: #e05d38;
  --accent-soft: #fdeae2;
  --green: #2e9e5b;
  --radius: 14px;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

img { max-width: 100%; }

a { color: inherit; text-decoration: none; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  transition: opacity .2s, background .2s;
}
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-dark { background: #1c1a17; color: #fff; }
.btn-dark:hover { opacity: .82; }
.btn-light {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-light:hover { background: var(--bg-alt); }

/* ---------- 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 247, 241, .88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
}
.logo-mark {
  color: var(--accent);
  font-size: 22px;
  line-height: 1;
}
.main-nav {
  display: flex;
  gap: 26px;
  font-size: 14.5px;
  color: #3d3a34;
}
.main-nav a:hover { color: var(--accent); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(250,247,241,0) 60%, rgba(250,247,241,.9)),
    repeating-linear-gradient(0deg, transparent 0 63px, rgba(180,160,130,.10) 63px 64px),
    repeating-linear-gradient(90deg, transparent 0 63px, rgba(180,160,130,.10) 63px 64px),
    var(--bg);
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 40px;
  padding-top: 90px;
  padding-bottom: 90px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: #5c5648;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 26px;
}
.hero-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(46,158,91,.18);
}
.hero h1 {
  font-size: clamp(38px, 4.6vw, 58px);
  line-height: 1.18;
  font-weight: 400;
  letter-spacing: .01em;
}
.hero h1 strong { font-weight: 800; }
.hero h1 em {
  font-style: normal;
  font-weight: 800;
  color: var(--accent);
}
.hero-sub {
  margin-top: 22px;
  max-width: 460px;
  color: var(--text-sub);
  font-size: 16.5px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  margin-top: 30px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 42px;
  list-style: none;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.hero-stats li {
  padding: 16px 20px;
  border-left: 1px solid var(--border);
}
.hero-stats li:first-child { border-left: none; }
.hero-stats .num {
  display: block;
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
}
.hero-stats .label {
  font-size: 12.5px;
  color: var(--text-sub);
}

/* Hero 网络图 */
.hero-diagram {
  position: relative;
  height: 460px;
  min-width: 0;
}
.diagram-ring {
  position: absolute;
  left: 50%; top: 50%;
  width: 300px; height: 300px;
  transform: translate(-50%, -50%);
  border: 1px dashed rgba(224, 93, 56, .35);
  border-radius: 50%;
}
.diagram-ring::after {
  content: "";
  position: absolute;
  inset: -50px;
  border: 1px dashed rgba(160, 150, 130, .3);
  border-radius: 50%;
}
.diagram-core {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 168px; height: 168px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, #f6b26b, #e05d38 70%);
  box-shadow: 0 18px 50px rgba(224, 93, 56, .35), 0 0 0 14px rgba(224, 93, 56, .07);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 30px;
  color: #fff;
}
.core-title { font-weight: 800; font-size: 17px; }
.core-sub { font-size: 12px; opacity: .85; }

.node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 16px;
  box-shadow: 0 6px 18px rgba(60, 45, 20, .06);
  white-space: nowrap;
}
.node-icon {
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  font-family: var(--mono);
}
.icon-a { background: #d97757; }
.icon-g { background: #7c5cd6; }
.icon-o { background: #2e9e5b; }
.icon-t { background: #e8963e; font-size: 12px; }
.node-name { display: flex; flex-direction: column; line-height: 1.25; font-weight: 700; font-size: 14px; }
.node-name small { font-weight: 400; font-size: 11px; color: var(--text-sub); font-family: var(--mono); }
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  margin-left: 4px;
}
.node-claude { left: 2%; top: 8%; }
.node-gemini { left: 0; top: 42%; }
.node-gpt    { left: 3%; top: 76%; }
.node-dev    { right: 2%; top: 8%; }
.node-app    { right: 0; top: 42%; }
.node-ent    { right: 2%; top: 76%; }

/* 模型滚动条 */
.ticker {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: #fdfbf7;
  overflow: hidden;
  padding: 12px 0;
}
.ticker-track {
  display: flex;
  width: max-content;
  animation: ticker 36s linear infinite;
}
.ticker-group {
  display: flex;
  align-items: center;
  gap: 44px;
  padding-right: 44px;
}
.tick {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: #5c5648;
}
.tick b { font-weight: 700; color: var(--text); }
.tick i {
  font-style: normal;
  background: var(--bg-alt);
  border-radius: 999px;
  padding: 3px 10px;
}
.tick i.hot { background: var(--accent-soft); color: #c24e2c; }
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- 通用 Section ---------- */
.section { padding: 90px 0; }
.section-head { max-width: 640px; margin-bottom: 48px; }
.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: .08em;
  margin-bottom: 12px;
}
.section-head h2, .faq-head h2, .cta-inner h2 {
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.25;
  font-weight: 800;
}
.section-sub {
  margin-top: 16px;
  color: var(--text-sub);
  font-size: 16px;
}
.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin-top: 20px;
}
.pill-list li {
  font-family: var(--mono);
  font-size: 12.5px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 14px;
}
.arrow-link {
  display: inline-block;
  margin-top: 20px;
  font-weight: 600;
  color: var(--accent);
}
.arrow-link:hover { text-decoration: underline; }

/* ---------- 模型卡片 ---------- */
.model-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.model-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.model-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, #e57e5a, #e8b44e, #7bbf7a, #6f9fe8, #a98ae0);
}
.model-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(60, 45, 20, .08);
}
.model-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.model-logo {
  width: 42px; height: 42px;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 20px;
}
.logo-anthropic { color: #d97757; }
.logo-openai { color: #1c1a17; }
.logo-google { color: #4a7de8; }
.model-title { flex: 1; min-width: 0; }
.model-title h3 { font-size: 17px; font-family: var(--mono); }
.model-title p {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}
.discount {
  background: var(--accent-soft);
  color: #c24e2c;
  font-family: var(--mono);
  font-size: 12px;
  border-radius: 999px;
  padding: 2px 9px;
  white-space: nowrap;
}
.provider {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-sub);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 12px;
}
.model-desc {
  margin: 16px 0 18px;
  font-size: 14.5px;
  color: #4a463f;
}
.price-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.price-box {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  background: #fff;
}
.price-box span {
  display: block;
  font-size: 12px;
  color: var(--text-sub);
  font-family: var(--mono);
}
.price-box b {
  font-family: var(--mono);
  font-size: 14px;
  color: #c24e2c;
}
.price-box b.cache { color: var(--green); }
.model-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-sub);
}
.hot-tag {
  border: 1px solid #f0c4ae;
  color: #c24e2c;
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 2px 12px;
}

/* ---------- 功能 ---------- */
.features { background: var(--bg-alt); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.feature-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
}
.feature-item h3 {
  margin: 10px 0 8px;
  font-size: 18px;
}
.feature-item p {
  font-size: 14.5px;
  color: var(--text-sub);
}

/* ---------- 定价表 ---------- */
.table-wrap {
  overflow-x: auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.price-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  font-size: 14.5px;
}
.price-table th, .price-table td {
  text-align: left;
  padding: 15px 20px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  white-space: nowrap;
}
.price-table th {
  font-size: 12.5px;
  color: var(--text-sub);
  font-weight: 600;
  background: #fbf8f2;
}
.price-table tbody tr:last-child td { border-bottom: none; }
.price-table tbody tr:hover { background: #fbf8f2; }
.price-table td b { display: block; }
.price-table td small { color: var(--text-sub); font-size: 12px; }
.online {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--green);
  font-size: 13px;
}
.online::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
}

/* ---------- 评价 ---------- */
.quote-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.quote-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.quote-card blockquote {
  font-size: 15px;
  color: #3d3a34;
  position: relative;
}
.quote-card blockquote::before {
  content: "“";
  display: block;
  font-size: 34px;
  line-height: 1;
  color: var(--accent);
  font-family: Georgia, serif;
  margin-bottom: 6px;
}
.quote-card figcaption {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
}
.avatar {
  width: 40px; height: 40px;
  flex: none;
  border-radius: 50%;
  background: linear-gradient(135deg, #f0a05a, #e05d38);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.quote-card figcaption b { display: block; font-size: 14.5px; }
.quote-card figcaption small { color: var(--text-sub); font-size: 12.5px; }

/* ---------- FAQ ---------- */
.faq { background: var(--bg-alt); }
.faq-inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}
.faq-actions { display: flex; gap: 12px; margin-top: 24px; }
.faq-list details {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 22px;
  font-weight: 600;
  font-size: 15.5px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  font-size: 20px;
  color: var(--text-sub);
  flex: none;
  transition: transform .2s;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p {
  padding: 0 22px 20px;
  color: var(--text-sub);
  font-size: 14.5px;
}

/* ---------- CTA ---------- */
.cta { text-align: center; }
.cta-inner { max-width: 640px; }
.cta-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 13px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 22px;
}
.cta-center { justify-content: center; }

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: #fbf8f2;
  padding: 60px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-sub);
  max-width: 320px;
}
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h3 {
  font-size: 13.5px;
  color: var(--text-sub);
  font-weight: 600;
  margin-bottom: 6px;
}
.footer-col a { font-size: 14.5px; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 22px;
  padding-bottom: 22px;
  font-size: 13px;
  color: var(--text-sub);
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; padding-top: 60px; padding-bottom: 60px; }
  .hero-diagram { display: none; }
  .model-grid, .feature-grid, .quote-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-inner { grid-template-columns: 1fr; gap: 36px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .main-nav { display: none; }
}
@media (max-width: 600px) {
  .section { padding: 60px 0; }
  .model-grid, .feature-grid, .quote-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-stats li:nth-child(3) { border-left: none; }
  .hero-stats li:nth-child(n+3) { border-top: 1px solid var(--border); }
  .hero-cta { flex-direction: column; }
  .btn { text-align: center; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
}