/* ==========================================================================
   赔钱机场 (Peiqian Cloud) - 2026 官方旗舰极客样式库
   主题色系：深邃靛蓝 (Deep Indigo) + 赛博星轨紫 (Cosmic Violet) + 冷萃极客灰 (Slate)
   ========================================================================== */

:root {
  --bg-main: #07090E;
  --bg-card: #0D131F;
  --bg-card-hover: #121A2B;
  --bg-subtle: #162033;
  --border-light: rgba(99, 102, 241, 0.15);
  --border-focus: rgba(99, 102, 241, 0.45);
  --border-glow: rgba(56, 189, 248, 0.35);

  --primary: #6366F1;
  --primary-glow: rgba(99, 102, 241, 0.4);
  --accent-cyan: #38BDF8;
  --accent-purple: #A855F7;
  --accent-green: #10B981;
  --accent-amber: #F59E0B;

  --text-main: #F1F5F9;
  --text-muted: #94A3B8;
  --text-subtle: #64748B;

  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.25);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-image: 
    radial-gradient(at 10% 20%, rgba(99, 102, 241, 0.08) 0px, transparent 40%),
    radial-gradient(at 90% 10%, rgba(56, 189, 248, 0.06) 0px, transparent 35%),
    radial-gradient(at 50% 85%, rgba(168, 85, 247, 0.07) 0px, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 40px 40px, 40px 40px;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: #7dd3fc;
}

/* ================= 布局容器 ================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* ================= 头部导航 ================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(7, 9, 14, 0.82);
  border-bottom: 1px solid var(--border-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 44px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 14.5px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(99, 102, 241, 0.12);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ================= 核心按钮 ================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-size: 14.5px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #6366F1 0%, #4F46E5 50%, #4338CA 100%);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--primary-glow);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(99, 102, 241, 0.5);
  color: #ffffff;
}

.btn-accent {
  background: linear-gradient(135deg, #38BDF8 0%, #6366F1 60%, #A855F7 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-weight: 700;
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(56, 189, 248, 0.45);
  color: #ffffff;
}

.btn-outline {
  background: rgba(13, 19, 31, 0.7);
  color: var(--text-main);
  border: 1px solid var(--border-light);
}

.btn-outline:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--border-focus);
  color: #fff;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 13px;
}

/* ================= Hero 首屏 ================= */
.hero-section {
  padding: 70px 0 60px;
  text-align: center;
  position: relative;
}

.hero-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-badge-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: 46px;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 20px;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
}

.gradient-text {
  background: linear-gradient(135deg, #FFFFFF 20%, #38BDF8 60%, #A855F7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 820px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.hero-telemetry {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1000px;
  margin: 0 auto;
}

.telemetry-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 18px 14px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.telemetry-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-focus);
}

.telemetry-val {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-mono);
  letter-spacing: -0.5px;
}

.telemetry-val.cyan { color: var(--accent-cyan); }
.telemetry-val.purple { color: var(--accent-purple); }
.telemetry-val.green { color: var(--accent-green); }

.telemetry-label {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ================= 通用 Section 样式 ================= */
.section {
  padding: 80px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
  border: 1px solid rgba(99, 102, 241, 0.25);
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
}

/* ================= 链路与协议特性网格 ================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-glow);
  background: var(--bg-card-hover);
}

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

.feature-icon-box {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent-cyan);
  font-size: 24px;
}

.feature-title {
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ================= 运营商直连实测表格 ================= */
.route-table-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.table-wrap {
  overflow-x: auto;
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

.custom-table th {
  background: rgba(16, 24, 39, 0.9);
  color: #cbd5e1;
  font-weight: 600;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
}

.custom-table td {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
}

.custom-table tr:hover td {
  background: rgba(99, 102, 241, 0.05);
  color: #fff;
}

.status-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 12.5px;
  font-weight: 600;
}

.status-tag.excellent {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-tag.optimal {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

/* ================= AI 与全场景流媒体矩阵 ================= */
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.matrix-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all 0.2s ease;
}

.matrix-card:hover {
  border-color: var(--border-focus);
  transform: translateY(-2px);
}

.matrix-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  flex-shrink: 0;
}

.icon-chatgpt { background: rgba(16, 185, 129, 0.15); color: #10B981; }
.icon-claude { background: rgba(217, 119, 6, 0.15); color: #F59E0B; }
.icon-netflix { background: rgba(239, 68, 68, 0.15); color: #EF4444; }
.icon-disney { background: rgba(59, 130, 246, 0.15); color: #3B82F6; }
.icon-youtube { background: rgba(220, 38, 38, 0.15); color: #F87171; }
.icon-midjourney { background: rgba(168, 85, 247, 0.15); color: #C084FC; }

.matrix-info h4 {
  font-size: 16px;
  color: #fff;
  margin-bottom: 4px;
}

.matrix-info p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ================= 客户端导入教程指引 ================= */
.client-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.client-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: all 0.25s ease;
}

.client-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.15);
  transform: translateY(-3px);
}

.client-os-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.client-name {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.client-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* ================= 套餐价格卡片 ================= */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.pricing-card.featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.12) 0%, var(--bg-card) 60%);
  box-shadow: 0 0 35px rgba(99, 102, 241, 0.25);
  transform: scale(1.02);
}

.pricing-ribbon {
  position: absolute;
  top: -12px;
  right: 20px;
  background: linear-gradient(135deg, #38BDF8, #6366F1);
  color: #fff;
  font-size: 11.5px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
  letter-spacing: 0.5px;
}

.plan-name {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.plan-price {
  font-size: 34px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  font-family: var(--font-mono);
}

.plan-price span {
  font-size: 13.5px;
  font-weight: 400;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.plan-features li {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.plan-features li::before {
  content: "✓";
  color: var(--accent-cyan);
  font-weight: 800;
}

/* ================= FAQ 问答手风琴 ================= */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.faq-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: border-color 0.2s ease;
}

.faq-card:hover {
  border-color: var(--border-focus);
}

.faq-q {
  font-size: 16.5px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.faq-q::before {
  content: "Q";
  display: inline-flex;
  width: 22px;
  height: 22px;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.2);
  color: var(--accent-cyan);
  border-radius: 5px;
  font-size: 12px;
  font-weight: 800;
  flex-shrink: 0;
}

.faq-a {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ================= 文章矩阵模块 ================= */
.article-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-glow);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  color: var(--text-subtle);
  margin-bottom: 12px;
}

.article-category {
  color: var(--accent-cyan);
  font-weight: 600;
}

.article-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
}

.article-title a {
  color: #fff;
}

.article-title a:hover {
  color: var(--accent-cyan);
}

.article-excerpt {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.read-more-link {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.read-more-link:hover {
  gap: 10px;
}

/* ================= 文章阅读页专有样式 ================= */
.article-page {
  padding: 40px 0 80px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-subtle);
  margin-bottom: 28px;
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover {
  color: #fff;
}

.article-header {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 24px;
  margin-bottom: 36px;
}

.article-page-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  color: #fff;
}

.article-content {
  font-size: 15.5px;
  line-height: 1.8;
  color: #cbd5e1;
}

.article-content h2 {
  font-size: 24px;
  color: #fff;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.article-content h3 {
  font-size: 19px;
  color: #e2e8f0;
  margin: 28px 0 12px;
}

.article-content p {
  margin-bottom: 18px;
}

.article-content ul,
.article-content ol {
  margin: 0 0 20px 24px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  border-left: 3px solid var(--primary);
  background: rgba(99, 102, 241, 0.08);
  padding: 14px 20px;
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
  color: #cbd5e1;
}

.article-content pre {
  background: #0b0f17;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 16px;
  overflow-x: auto;
  margin: 20px 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: #38bdf8;
}

.article-cta-box {
  margin-top: 50px;
  padding: 32px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(56, 189, 248, 0.08) 100%);
  border: 1px solid var(--border-focus);
  border-radius: var(--radius-lg);
  text-align: center;
}

/* ================= 页脚 ================= */
.site-footer {
  margin-top: auto;
  background: #05070B;
  border-top: 1px solid var(--border-light);
  padding: 50px 0 30px;
  font-size: 13.5px;
  color: var(--text-subtle);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  margin-top: 14px;
  line-height: 1.6;
  max-width: 320px;
}

.footer-col h5 {
  font-size: 14px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--text-muted);
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ================= 移动端适配 ================= */
@media (max-width: 1024px) {
  .hero-title { font-size: 36px; }
  .features-grid,
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .client-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .nav-links { display: none; }
  .hero-title { font-size: 28px; }
  .hero-telemetry { grid-template-columns: repeat(2, 1fr); }
  .features-grid,
  .matrix-grid,
  .pricing-grid,
  .faq-grid,
  .article-cards-grid { grid-template-columns: 1fr; }
  .client-grid { grid-template-columns: 1fr; }
  .pricing-card.featured { transform: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}