/* ==========================================================================
   WgetCloud 官方加速与评测导航 - 全局样式系统
   Visual Style: Cream and Ultramarine Graphic Panels
   Colors:
     - Cream: #F9F5E9
     - Ultramarine: #344A9B
     - Near-Black: #292B35
     - Pale Blue: #E8ECF7
   ========================================================================== */

:root {
  --color-cream: #F9F5E9;
  --color-cream-light: #FDFBF5;
  --color-cream-dark: #ECE5D3;
  --color-ultramarine: #344A9B;
  --color-ultramarine-dark: #263877;
  --color-ultramarine-light: #4A63BD;
  --color-near-black: #292B35;
  --color-near-black-soft: #3D404E;
  --color-pale-blue: #E8ECF7;
  --color-pale-blue-light: #F2F5FC;
  --color-white: #FFFFFF;
  --color-border: rgba(52, 74, 155, 0.22);
  --color-border-strong: #344A9B;
  --color-border-dark: #292B35;
  
  --font-hero: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --font-serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "SimSun", "STSong", Georgia, serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --font-size-base: 17px;
  --line-height-base: 1.68;
  --container-max: 1200px;
  --panel-radius: 8px;
  --panel-radius-lg: 14px;
  --transition-speed: 0.24s;
}

/* 基础重置与排版规范 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-near-black);
  background-color: var(--color-cream);
  overflow-x: hidden;
  overflow-wrap: anywhere;
  word-break: break-word;
  -webkit-font-smoothing: antialiased;
}

/* 容器与网格 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (min-width: 768px) {
  .container {
    padding-left: 32px;
    padding-right: 32px;
  }
}

/* 通用无下划线链接 */
a {
  color: var(--color-ultramarine);
  text-decoration: none;
  transition: color var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

a:hover {
  color: var(--color-ultramarine-dark);
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 顶栏 Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(249, 245, 233, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--color-border-strong);
  transition: background-color 0.2s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-badge {
  width: 40px;
  height: 40px;
  background: var(--color-ultramarine);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-cream);
  font-family: var(--font-hero);
  font-weight: 800;
  font-size: 18px;
  box-shadow: 2px 2px 0px var(--color-near-black);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-family: var(--font-hero);
  font-size: 20px;
  font-weight: 800;
  color: var(--color-near-black);
  letter-spacing: -0.5px;
}

.logo-subtitle {
  font-size: 11px;
  color: var(--color-ultramarine);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* 导航链接 */
.nav-menu {
  display: none;
  align-items: center;
  gap: 24px;
}

.nav-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-near-black);
  padding: 6px 10px;
  border-radius: 4px;
  transition: all var(--transition-speed);
}

.nav-link:hover {
  color: var(--color-ultramarine);
  background-color: var(--color-pale-blue);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 移动端汉堡菜单按钮 */
.mobile-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: var(--color-white);
  border: 2px solid var(--color-border-strong);
  border-radius: 6px;
  cursor: pointer;
  padding: 8px;
}

.mobile-nav-toggle svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-near-black);
}

@media (min-width: 992px) {
  .nav-menu {
    display: flex;
  }
  .mobile-nav-toggle {
    display: none;
  }
}

/* 移动端全屏弹窗抽屉 */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 74px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-cream);
  z-index: 999;
  padding: 24px 20px;
  border-top: 2px solid var(--color-ultramarine);
  overflow-y: auto;
}

.mobile-menu-overlay.is-open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mobile-nav-list li a {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-near-black);
  padding: 12px 16px;
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: 6px;
}

.mobile-nav-list li a:hover {
  background: var(--color-pale-blue);
  color: var(--color-ultramarine);
}

/* 按钮通用系统 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  padding: 11px 22px;
  border-radius: 6px;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  transition: all var(--transition-speed) cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--color-ultramarine);
  color: var(--color-cream);
  border-color: var(--color-ultramarine-dark);
  box-shadow: 2px 2px 0px var(--color-near-black);
}

.btn-primary:hover {
  background-color: var(--color-ultramarine-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 3px 3px 0px var(--color-near-black);
}

.btn-secondary {
  background-color: var(--color-pale-blue);
  color: var(--color-ultramarine);
  border-color: var(--color-ultramarine);
  box-shadow: 2px 2px 0px var(--color-border-strong);
}

.btn-secondary:hover {
  background-color: var(--color-white);
  color: var(--color-near-black);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-near-black);
  border-color: var(--color-border-dark);
}

.btn-outline:hover {
  background-color: var(--color-near-black);
  color: var(--color-cream);
}

.btn-sm {
  padding: 8px 14px;
  font-size: 13px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 17px;
}

/* Hero Section */
.hero-section {
  padding: 40px 0 60px;
  background: var(--color-cream);
  border-bottom: 2px solid var(--color-border-strong);
}

@media (min-width: 992px) {
  .hero-section {
    padding: 70px 0 90px;
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
  }
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-pill {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-pale-blue);
  color: var(--color-ultramarine);
  border: 1.5px solid var(--color-ultramarine);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.hero-title {
  font-family: var(--font-hero);
  font-size: 36px;
  line-height: 1.15;
  font-weight: 800;
  color: var(--color-near-black);
  letter-spacing: -1px;
}

@media (min-width: 992px) {
  .hero-title {
    font-size: 58px;
  }
}

.hero-intro {
  font-family: var(--font-serif);
  font-size: 19px;
  line-height: 1.6;
  color: var(--color-ultramarine);
}

.hero-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-near-black-soft);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
}

.hero-meta-points {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-near-black-soft);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-meta-dot {
  width: 8px;
  height: 8px;
  background: var(--color-ultramarine);
  border-radius: 50%;
}

/* Hero 右侧 Interlocking Ultramarine Panels Dashboard */
.hero-dashboard-panel {
  background: var(--color-white);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--panel-radius-lg);
  box-shadow: 6px 6px 0px var(--color-near-black);
  overflow: hidden;
  position: relative;
}

.dashboard-header {
  background: var(--color-ultramarine);
  color: var(--color-cream);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--color-near-black);
}

.dashboard-header-title {
  font-family: var(--font-hero);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dashboard-live-indicator {
  width: 10px;
  height: 10px;
  background-color: #2ECC71;
  border-radius: 50%;
}

.dashboard-mode-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  background: rgba(249, 245, 233, 0.2);
  padding: 3px 8px;
  border-radius: 4px;
}

.dashboard-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--color-cream-light);
}

/* 联锁板块组件 */
.interlock-panel {
  background: var(--color-white);
  border: 1.5px solid var(--color-ultramarine);
  border-radius: var(--panel-radius);
  padding: 14px;
  position: relative;
  transition: transform var(--transition-speed) ease;
}

.interlock-panel:hover {
  transform: translateX(4px);
}

.interlock-panel.primary-panel {
  background: var(--color-pale-blue);
  border-width: 2px;
}

.interlock-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.interlock-region {
  font-family: var(--font-hero);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-near-black);
  display: flex;
  align-items: center;
  gap: 8px;
}

.region-code {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  background: var(--color-ultramarine);
  color: var(--color-cream);
  padding: 2px 6px;
  border-radius: 4px;
}

.interlock-status-badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-ultramarine);
  background: var(--color-white);
  padding: 2px 8px;
  border-radius: 12px;
  border: 1px solid var(--color-ultramarine);
}

.interlock-desc {
  font-size: 13px;
  color: var(--color-near-black-soft);
  line-height: 1.45;
}

/* 精密路由示意线条 */
.route-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 14px;
  position: relative;
}

.route-line {
  width: 2px;
  height: 14px;
  background: repeating-linear-gradient(to bottom, var(--color-ultramarine) 0, var(--color-ultramarine) 3px, transparent 3px, transparent 6px);
}

.dashboard-footer-note {
  margin-top: 6px;
  padding: 10px 12px;
  background: var(--color-pale-blue-light);
  border: 1px dashed var(--color-ultramarine);
  border-radius: 6px;
  font-size: 12px;
  color: var(--color-near-black-soft);
  text-align: center;
}

/* 章节大标题与导言系统 */
.section {
  padding: 60px 0;
  border-bottom: 2px solid var(--color-border);
}

@media (min-width: 992px) {
  .section {
    padding: 90px 0;
  }
}

.section-head {
  margin-bottom: 40px;
}

.section-head.text-center {
  text-align: center;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.section-pretitle {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-ultramarine);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-hero);
  font-size: 30px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-near-black);
  margin-bottom: 12px;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 38px;
  }
}

.section-intro {
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-near-black-soft);
}

/* 核心优势：Offset Editorial Panels of Different Widths */
.editorial-panels-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 992px) {
  .editorial-panels-grid {
    grid-template-columns: 12fr;
  }
  .panel-span-7 {
    grid-column: span 7;
  }
  .panel-span-5 {
    grid-column: span 5;
  }
  .panel-span-12 {
    grid-column: span 12;
  }
  .editorial-row-1 {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: 24px;
    margin-bottom: 24px;
  }
  .editorial-row-2 {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 24px;
  }
}

.editorial-panel {
  background: var(--color-white);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--panel-radius-lg);
  padding: 30px 24px;
  box-shadow: 4px 4px 0px var(--color-near-black);
  position: relative;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.editorial-panel:hover {
  transform: translateY(-2px);
  box-shadow: 6px 6px 0px var(--color-near-black);
}

.editorial-panel.panel-accent {
  background: var(--color-pale-blue);
  border-color: var(--color-ultramarine);
}

.editorial-panel.panel-dark {
  background: var(--color-ultramarine);
  color: var(--color-cream);
  border-color: var(--color-near-black);
}

.editorial-panel.panel-dark .editorial-title,
.editorial-panel.panel-dark .editorial-desc {
  color: var(--color-cream);
}

.editorial-panel.panel-dark .editorial-num {
  color: var(--color-pale-blue);
}

.editorial-num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 800;
  color: var(--color-ultramarine);
  margin-bottom: 12px;
  line-height: 1;
}

.editorial-title {
  font-family: var(--font-hero);
  font-size: 22px;
  font-weight: 800;
  color: var(--color-near-black);
  margin-bottom: 12px;
  line-height: 1.35;
}

.editorial-desc {
  font-size: 16px;
  color: var(--color-near-black-soft);
  line-height: 1.65;
}

.editorial-list {
  margin-top: 16px;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.editorial-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
}

.editorial-list li::before {
  content: "■";
  color: var(--color-ultramarine);
  font-size: 12px;
  margin-top: 4px;
}

.editorial-panel.panel-dark .editorial-list li::before {
  color: var(--color-cream);
}

/* 全球节点：Horizontal Strip 布局 */
.nodes-strip-container {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 16px;
  padding-top: 6px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-ultramarine) var(--color-cream-dark);
}

.nodes-strip-container::-webkit-scrollbar {
  height: 8px;
}

.nodes-strip-container::-webkit-scrollbar-track {
  background: var(--color-cream-dark);
  border-radius: 4px;
}

.nodes-strip-container::-webkit-scrollbar-thumb {
  background: var(--color-ultramarine);
  border-radius: 4px;
}

.node-card {
  flex: 0 0 260px;
  background: var(--color-white);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--panel-radius);
  padding: 18px;
  box-shadow: 3px 3px 0px var(--color-near-black);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
}

.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.node-name {
  font-family: var(--font-hero);
  font-size: 17px;
  font-weight: 800;
  color: var(--color-near-black);
  display: flex;
  align-items: center;
  gap: 8px;
}

.node-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--color-pale-blue);
  color: var(--color-ultramarine);
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
}

.node-specs {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--color-near-black-soft);
}

.node-spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  border-bottom: 1px dashed var(--color-cream-dark);
}

.node-spec-label {
  color: #718096;
}

.node-spec-val {
  font-weight: 600;
  color: var(--color-near-black);
}

.node-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-ultramarine);
}

/* AI 与流媒体：不同的视觉节奏 (Visual Rhythm) */
/* 1. AI Section: Modular Tech Panel Layout (6 Services) */
.ai-section {
  background-color: var(--color-cream-light);
}

.ai-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 640px) {
  .ai-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .ai-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.ai-card {
  background: var(--color-white);
  border: 1.5px solid var(--color-ultramarine);
  border-radius: var(--panel-radius);
  padding: 22px;
  position: relative;
  transition: all var(--transition-speed) ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.ai-card:hover {
  transform: translateY(-3px);
  box-shadow: 4px 4px 0px var(--color-ultramarine);
}

.ai-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
}

.ai-title {
  font-family: var(--font-hero);
  font-size: 20px;
  font-weight: 800;
  color: var(--color-near-black);
}

.ai-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--color-cream);
  background: var(--color-ultramarine);
  padding: 3px 8px;
  border-radius: 4px;
}

.ai-feature-desc {
  font-size: 14.5px;
  color: var(--color-near-black-soft);
  line-height: 1.6;
  margin-bottom: 16px;
}

.ai-tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.ai-pill {
  font-size: 12px;
  background: var(--color-pale-blue);
  color: var(--color-ultramarine);
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 600;
}

/* 2. Streaming Section: Cinema Media Ribbon Rhythm (5 Services) */
.streaming-section {
  background-color: var(--color-cream);
}

.streaming-ribbon-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .streaming-ribbon-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .streaming-ribbon-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .streaming-ribbon-grid .streaming-card:nth-child(4) {
    grid-column: span 1;
  }
}

.streaming-card {
  background: var(--color-pale-blue);
  border: 2px solid var(--color-near-black);
  border-radius: var(--panel-radius-lg);
  padding: 24px;
  box-shadow: 4px 4px 0px var(--color-border-strong);
  transition: all var(--transition-speed) ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.streaming-card:hover {
  transform: translateY(-2px);
  box-shadow: 6px 6px 0px var(--color-border-strong);
  background: var(--color-white);
}

.streaming-media-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.streaming-media-name {
  font-family: var(--font-hero);
  font-size: 21px;
  font-weight: 800;
  color: var(--color-near-black);
}

.streaming-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  background: var(--color-near-black);
  color: var(--color-cream);
  padding: 3px 8px;
  border-radius: 4px;
}

.streaming-desc {
  font-size: 14.5px;
  color: var(--color-near-black-soft);
  line-height: 1.6;
  margin-bottom: 14px;
}

.streaming-specs {
  display: flex;
  gap: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ultramarine);
}

/* 套餐对比 Pricing Section: Simple Bordered Comparisons */
.pricing-section {
  background: var(--color-cream-light);
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: stretch;
}

@media (min-width: 640px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.pricing-card {
  background: var(--color-white);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--panel-radius-lg);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-speed) ease;
}

.pricing-card:hover {
  transform: translateY(-3px);
  box-shadow: 4px 4px 0px var(--color-near-black);
}

/* 唯一定位的推荐套餐高亮 */
.pricing-card.pricing-highlight {
  border: 3px solid var(--color-ultramarine);
  background: var(--color-pale-blue-light);
  box-shadow: 6px 6px 0px var(--color-near-black);
  transform: scale(1.02);
  z-index: 2;
}

.pricing-card.pricing-highlight:hover {
  transform: scale(1.02) translateY(-3px);
}

.pricing-featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-ultramarine);
  color: var(--color-cream);
  font-family: var(--font-hero);
  font-size: 12px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 12px;
  border: 2px solid var(--color-near-black);
  white-space: nowrap;
}

.pricing-tier-name {
  font-family: var(--font-hero);
  font-size: 20px;
  font-weight: 800;
  color: var(--color-near-black);
  margin-bottom: 8px;
}

.pricing-price-box {
  margin: 16px 0;
  padding-bottom: 16px;
  border-bottom: 1.5px solid var(--color-border);
}

.pricing-price {
  font-family: var(--font-hero);
  font-size: 38px;
  font-weight: 800;
  color: var(--color-ultramarine);
  display: flex;
  align-items: baseline;
  gap: 2px;
  line-height: 1.1;
  margin-bottom: 10px;
}

.pricing-currency {
  font-size: 22px;
  font-weight: 700;
}

.pricing-period {
  font-size: 14px;
  color: var(--color-near-black-soft);
  font-weight: 500;
  margin-left: 4px;
}

.pricing-traffic-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-ultramarine);
  background: var(--color-pale-blue);
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid rgba(52, 74, 155, 0.2);
}

.pricing-target {
  font-size: 13.5px;
  color: var(--color-near-black-soft);
  min-height: 40px;
  margin-bottom: 16px;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 14px;
  color: var(--color-near-black);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pricing-features li::before {
  content: "✓";
  color: var(--color-ultramarine);
  font-weight: bold;
}

.pricing-btn {
  width: 100%;
  margin-top: auto;
}

.pricing-disclaimer {
  margin-top: 32px;
  padding: 16px;
  background: var(--color-cream);
  border: 1.5px dashed var(--color-ultramarine);
  border-radius: 8px;
  font-size: 13px;
  color: var(--color-near-black-soft);
  text-align: center;
}

/* 9篇独立文章卡片：Strong Titles & Compact Category Labels */
/* 3 desktop / 2 tablet / 1 mobile columns */
.articles-section {
  background: var(--color-cream);
}

.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 640px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card {
  background: var(--color-white);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--panel-radius);
  padding: 22px;
  box-shadow: 4px 4px 0px var(--color-near-black);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-speed) ease;
  text-decoration: none;
}

.article-card:hover {
  transform: translateY(-3px);
  box-shadow: 6px 6px 0px var(--color-ultramarine);
  background: var(--color-cream-light);
}

.article-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.compact-cat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  background: var(--color-pale-blue);
  color: var(--color-ultramarine);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--color-ultramarine);
}

.article-read-time {
  font-size: 12px;
  color: #718096;
}

.article-strong-title {
  font-family: var(--font-hero);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.38;
  color: var(--color-near-black);
  margin-bottom: 10px;
}

.article-excerpt {
  font-size: 14.5px;
  color: var(--color-near-black-soft);
  line-height: 1.6;
  margin-bottom: 16px;
  flex-grow: 1;
}

.article-read-link {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-ultramarine);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 测试样卷 / 用户口碑 Testimonials */
.testimonials-section {
  background: var(--color-cream-light);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--panel-radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-ultramarine);
  background: var(--color-pale-blue);
  padding: 2px 6px;
  border-radius: 4px;
  align-self: flex-start;
  margin-bottom: 10px;
  font-weight: 700;
}

.testimonial-content {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--color-near-black);
  margin-bottom: 14px;
  font-style: italic;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar-tag {
  width: 34px;
  height: 34px;
  background: var(--color-ultramarine);
  color: var(--color-cream);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
}

.user-info-name {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-near-black);
}

.user-info-role {
  font-size: 12px;
  color: #718096;
}

/* FAQ 手风琴组件 */
.faq-section {
  background: var(--color-cream);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-white);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--panel-radius);
  overflow: hidden;
}

.faq-summary {
  padding: 18px 22px;
  font-family: var(--font-hero);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-near-black);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  font-size: 20px;
  font-weight: bold;
  color: var(--color-ultramarine);
  transition: transform var(--transition-speed);
}

details[open] .faq-icon {
  transform: rotate(45deg);
}

.faq-content {
  padding: 0 22px 20px 22px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-near-black-soft);
  border-top: 1px solid var(--color-pale-blue);
  margin-top: 6px;
  padding-top: 14px;
}

/* 底栏 Footer */
.site-footer {
  background: var(--color-near-black);
  color: var(--color-cream);
  padding: 60px 0 30px;
  border-top: 4px solid var(--color-ultramarine);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
  }
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-brand-title {
  font-family: var(--font-hero);
  font-size: 22px;
  font-weight: 800;
  color: var(--color-cream);
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.6;
  color: #A0AEC0;
}

.footer-col h4 {
  font-family: var(--font-hero);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-cream);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links li a {
  font-size: 14px;
  color: #CBD5E0;
  transition: color var(--transition-speed);
}

.footer-links li a:hover {
  color: var(--color-cream);
  text-decoration: underline;
}

.footer-disclaimer-box {
  padding: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--panel-radius);
  font-size: 13px;
  line-height: 1.65;
  color: #A0AEC0;
  margin-bottom: 30px;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: #718096;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

/* ==========================================================================
   文章页面与单页专有样式 (Articles & Pages)
   ========================================================================== */
.page-hero {
  background: var(--color-pale-blue-light);
  border-bottom: 2px solid var(--color-border-strong);
  padding: 40px 0 46px;
}

.breadcrumb-nav {
  margin-bottom: 18px;
  font-size: 13.5px;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.breadcrumb-list li a {
  color: var(--color-ultramarine);
  font-weight: 600;
}

.breadcrumb-list li span {
  color: var(--color-near-black-soft);
}

.breadcrumb-separator {
  color: #A0AEC0;
}

.page-title {
  font-family: var(--font-hero);
  font-size: 32px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-near-black);
  margin-bottom: 14px;
}

@media (min-width: 768px) {
  .page-title {
    font-size: 42px;
  }
}

.page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13.5px;
  color: var(--color-near-black-soft);
}

.page-content-wrapper {
  padding: 50px 0 80px;
}

.page-content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

@media (min-width: 1024px) {
  .page-content-grid {
    grid-template-columns: 8fr 4fr;
  }
}

/* 富文本长内容排版规范 */
.article-body {
  font-size: 17px;
  line-height: 1.78;
  color: var(--color-near-black);
}

.article-body h2 {
  font-family: var(--font-hero);
  font-size: 26px;
  font-weight: 800;
  color: var(--color-near-black);
  margin-top: 36px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-border);
}

.article-body h3 {
  font-family: var(--font-hero);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-ultramarine);
  margin-top: 26px;
  margin-bottom: 12px;
}

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

.article-body ul, .article-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

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

.article-body blockquote {
  border-left: 4px solid var(--color-ultramarine);
  background: var(--color-pale-blue-light);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 var(--panel-radius) var(--panel-radius) 0;
  font-size: 16px;
  color: var(--color-near-black-soft);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
  background: var(--color-white);
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--panel-radius);
  overflow: hidden;
}

.article-body th, .article-body td {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.article-body th {
  background: var(--color-pale-blue);
  color: var(--color-ultramarine);
  font-weight: 700;
}

.article-callout {
  background: var(--color-white);
  border: 2px solid var(--color-ultramarine);
  border-radius: var(--panel-radius);
  padding: 24px;
  margin: 30px 0;
  box-shadow: 4px 4px 0px var(--color-near-black);
}

.article-callout-title {
  font-family: var(--font-hero);
  font-size: 18px;
  font-weight: 800;
  color: var(--color-ultramarine);
  margin-bottom: 10px;
}

/* 侧边栏 Widget */
.sidebar-wrapper {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-widget {
  background: var(--color-white);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--panel-radius);
  padding: 22px;
  box-shadow: 3px 3px 0px var(--color-near-black);
}

.sidebar-widget-title {
  font-family: var(--font-hero);
  font-size: 17px;
  font-weight: 800;
  color: var(--color-near-black);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-pale-blue);
}

.related-articles-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.related-articles-list li a {
  display: block;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--color-near-black);
  font-weight: 600;
}

.related-articles-list li a:hover {
  color: var(--color-ultramarine);
}

/* ==========================================================================
   动画与无障碍 (One-time Panel Reveal, Reduced-motion)
   ========================================================================== */
.reveal-panel {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-panel.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* 尊重用户减弱动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-panel {
    opacity: 1 !important;
    transform: none !important;
  }
}