/* ===================================================================
   猫猫云 (maomaoyun.online) - 全局统一样式表
   规范：STYLE ㊾ DREAMCORE SURREAL + LAYER 2 性能与无障碍规范
   =================================================================== */

:root {
  /* Dreamcore 超现实调色板 */
  --dc-pale-blue: #dbeafe;
  --dc-sky-mist: #e2e8f0;
  --dc-dusty-pink: #fce7f3;
  --dc-washed-yellow: #fef9c3;
  --dc-lavender: #f3e8ff;
  --dc-fog-white: #f8fafc;
  --dc-card-bg: rgba(255, 255, 255, 0.76);
  --dc-card-border: rgba(226, 232, 240, 0.85);
  --dc-deep-navy: #0b1120;
  --dc-navy-subtle: #1e293b;
  --dc-crimson-accent: #991b1b;
  --dc-electric-blue: #2563eb;
  --dc-electric-blue-hover: #1d4ed8;

  /* 文字层次系统 */
  --text-primary: #090d16;
  --text-muted: #334155;
  --text-whisper: #64748b;
  --text-ghost: #94a3b8;

  /* 字体系统 (系统字体栈，禁止中文字体网络加载) */
  --font-serif: "Songti SC", "SimSun", "STSong", "Baskerville", "Georgia", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "Courier New", monospace;

  /* 空间与容器 */
  --container-width: 1140px;
  --container-narrow: 840px;
  --radius-window: 16px;
  --radius-btn: 30px;
  --blur-glass: blur(14px);
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--dc-fog-white);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* 胶片颗粒滤镜 */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 999;
  opacity: 0.038;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* 梦境天顶光晕 */
.dream-sky {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 160vh;
  background: radial-gradient(circle at 50% 10%, rgba(219, 234, 254, 0.75) 0%, rgba(243, 232, 255, 0.45) 35%, rgba(254, 249, 195, 0.25) 60%, rgba(248, 250, 252, 0) 100%);
  pointer-events: none;
  z-index: 0;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.container--narrow {
  max-width: var(--container-narrow);
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.title--section {
  font-size: clamp(1.85rem, 3.2vw, 2.6rem);
  line-height: 1.25;
}

.caption-mono {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-whisper);
}

a {
  color: var(--dc-electric-blue);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--dc-electric-blue-hover);
}

/* 面包屑导航 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-whisper);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

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

.breadcrumb a:hover {
  color: var(--dc-electric-blue);
}

.breadcrumb-separator {
  color: #cbd5e1;
}

/* 按钮系统 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  min-height: 44px;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
}

.btn--dream-glass {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-primary) !important;
  border: 1px solid rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 20px rgba(191, 219, 254, 0.45), 0 1px 3px rgba(0, 0, 0, 0.05);
}

.btn--dream-glass:hover {
  background: #ffffff;
  color: #0b1120 !important;
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 36px rgba(147, 197, 253, 0.55), 0 20px 48px rgba(15, 23, 42, 0.12);
}

.btn--primary {
  background: var(--dc-deep-navy);
  color: #f8fafc !important;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 18px rgba(11, 17, 32, 0.25);
}

.btn--primary:hover {
  background: #1e293b;
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(11, 17, 32, 0.35);
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary) !important;
  border: 1px solid rgba(15, 23, 42, 0.2);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--text-primary);
}

.btn--block {
  display: flex;
  width: 100%;
}

.btn--large {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* 顶部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 250, 252, 0.8);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--text-primary);
}

.brand-logo__mark {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #bfdbfe, #fbcfe8);
  border: 1px solid rgba(255, 255, 255, 0.9);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: #1e293b;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-desktop__link {
  font-size: 0.92rem;
  color: var(--text-muted);
  font-weight: 500;
  padding: 6px 0;
  position: relative;
}

.nav-desktop__link:hover,
.nav-desktop__link.is-active {
  color: var(--text-primary);
}

.nav-desktop__link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text-primary);
  transition: width 0.25s ease;
}

.nav-desktop__link:hover::after,
.nav-desktop__link.is-active::after {
  width: 100%;
}

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

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--dc-sky-mist);
  border-radius: 8px;
  padding: 8px;
  min-height: 44px;
  min-width: 44px;
  cursor: pointer;
  color: var(--text-primary);
  align-items: center;
  justify-content: center;
}

.mobile-drawer {
  display: none;
  padding: 20px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--dc-sky-mist);
}

.mobile-drawer.is-open {
  display: block;
}

.mobile-drawer__links {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 20px;
}

.mobile-drawer__links a {
  color: var(--text-primary);
  font-size: 1.05rem;
  padding: 8px 0;
  border-bottom: 1px solid #f1f5f9;
  font-family: var(--font-serif);
}

/* HERO: 巨大空旷空间 + 超小悬浮核心 + 巨大标题 */
.hero-dreamcore {
  min-height: 88vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 60px 0 80px;
}

.hero-liminal-space {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-micro-core {
  width: 60px;
  height: 60px;
  margin: 0 auto 30px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: coreFloat 6s ease-in-out infinite;
}

.core-orb {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #ffffff 0%, #bfdbfe 50%, #c084fc 100%);
  box-shadow: 0 0 30px rgba(192, 132, 252, 0.6), 0 0 50px rgba(191, 219, 254, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.9);
}

.core-ring {
  position: absolute;
  width: 68px;
  height: 22px;
  border: 1px solid rgba(147, 197, 253, 0.65);
  border-radius: 50%;
  transform: rotateX(65deg);
  animation: coreRotate 12s linear infinite;
}

@keyframes coreFloat {
  0%, 100% { transform: translateY(0px) scale(1); }
  50% { transform: translateY(-8px) scale(1.03); }
}

@keyframes coreRotate {
  0% { transform: rotateX(65deg) rotateZ(0deg); }
  100% { transform: rotateX(65deg) rotateZ(360deg); }
}

.hero-meta-coords {
  margin-bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 4px 14px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 20px;
  backdrop-filter: blur(6px);
}

.hero-liminal-title {
  margin-bottom: 22px;
  font-size: clamp(2.3rem, 5vw, 4rem);
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
}

.hero-liminal-sub {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 34px;
  line-height: 1.8;
}

.hero-actions-cluster {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 34px;
  flex-wrap: wrap;
}

.hero-floating-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  font-size: 0.88rem;
  color: var(--text-whisper);
  flex-wrap: wrap;
}

/* 通用区块排版 */
.section {
  padding: 80px 0;
  position: relative;
}

.section--alt {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: var(--blur-glass);
  border-top: 1px solid rgba(226, 232, 240, 0.7);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 44px;
}

.section-header__title {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  margin-bottom: 12px;
}

.section-header__subtitle {
  font-size: 1rem;
  color: var(--text-muted);
}

/* FEATURES 特性卡 (内联 SVG 图标 + 标题 + 描述) */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--dc-card-bg);
  backdrop-filter: var(--blur-glass);
  border: 1px solid var(--dc-card-border);
  border-radius: var(--radius-window);
  padding: 28px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.05);
  border-color: #ffffff;
}

.feature-card__icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(219, 234, 254, 0.5);
  border: 1px solid rgba(191, 219, 254, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--dc-electric-blue);
}

.feature-card__title {
  font-size: 1.2rem;
  font-family: var(--font-serif);
  margin-bottom: 10px;
}

.feature-card__desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 流媒体与 AI 支持网格 */
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.matrix-item {
  background: var(--dc-card-bg);
  backdrop-filter: var(--blur-glass);
  border: 1px solid var(--dc-card-border);
  border-radius: 12px;
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.matrix-item__icon {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: rgba(241, 245, 249, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  flex-shrink: 0;
}

.matrix-item__name {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.matrix-item__desc {
  font-size: 0.82rem;
  color: var(--text-whisper);
}

/* 使用场景卡片 */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scenario-card {
  background: var(--dc-card-bg);
  backdrop-filter: var(--blur-glass);
  border: 1px solid var(--dc-card-border);
  border-radius: var(--radius-window);
  padding: 28px;
  display: flex;
  flex-direction: column;
}

.scenario-card__header {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.scenario-card__title {
  font-size: 1.2rem;
  font-family: var(--font-serif);
  margin-bottom: 6px;
}

.scenario-card__device {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--dc-electric-blue);
  font-weight: 600;
}

.scenario-card__desc {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.75;
  flex-grow: 1;
}

/* 定价模块 (3 档方案，中档推荐) */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: var(--blur-glass);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-window);
  padding: 36px 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: rgba(191, 219, 254, 0.95);
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.07);
}

.pricing-card--featured {
  background: rgba(255, 255, 255, 0.95);
  border: 1.5px solid var(--dc-electric-blue);
  box-shadow: 0 16px 44px rgba(37, 99, 235, 0.12);
}

.pricing-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--dc-deep-navy);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  padding: 4px 14px;
  border-radius: 20px;
  white-space: nowrap;
}

.pricing-card__name {
  font-size: 1.35rem;
  font-family: var(--font-serif);
  margin-bottom: 6px;
}

.pricing-card__desc {
  font-size: 0.86rem;
  color: var(--text-whisper);
  margin-bottom: 22px;
}

.pricing-card__price {
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px dashed rgba(203, 213, 225, 0.8);
}

.price-currency {
  font-size: 1.2rem;
  font-family: var(--font-serif);
  color: var(--text-primary);
}

.price-amount {
  font-size: 2.6rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-primary);
}

.price-cycle {
  font-size: 0.86rem;
  color: var(--text-whisper);
}

.pricing-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
  flex-grow: 1;
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.feature-check {
  color: var(--dc-electric-blue);
  font-weight: 700;
}

/* FAQ 常见问答 */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--dc-card-bg);
  backdrop-filter: var(--blur-glass);
  border: 1px solid var(--dc-card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: rgba(147, 197, 253, 0.8);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 24px;
  font-size: 1.05rem;
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 44px;
}

.faq-question:focus-visible {
  outline: 2px solid var(--dc-electric-blue);
}

.faq-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform 0.25s ease;
  color: var(--text-whisper);
}

.faq-item.is-active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 24px 22px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-muted);
  border-top: 1px dashed rgba(226, 232, 240, 0.6);
}

.faq-item.is-active .faq-answer {
  display: block;
}

/* FINAL CTA: 安静空旷的房间，中央唯有聚光灯与大门 */
.section-final-liminal {
  min-height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 50%, #1e293b 0%, #0b1120 70%);
  color: #f8fafc;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}

.section-final-liminal::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 500px;
  height: 500px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(147, 197, 253, 0.12) 0%, rgba(0, 0, 0, 0) 70%);
  pointer-events: none;
}

.final-room-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin: 0 auto;
}

.final-room-prompt {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: #94a3b8;
  margin-bottom: 18px;
}

.final-room-title {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  font-family: var(--font-serif);
  color: #ffffff;
  margin-bottom: 20px;
}

.final-room-desc {
  font-size: 1.08rem;
  color: #94a3b8;
  margin-bottom: 38px;
  line-height: 1.75;
}

.btn--final-enter {
  background: #ffffff;
  color: #0b1120 !important;
  font-weight: 600;
  padding: 16px 42px;
  font-size: 1.1rem;
  border-radius: var(--radius-btn);
  box-shadow: 0 0 35px rgba(255, 255, 255, 0.35);
  display: inline-flex;
}

.btn--final-enter:hover {
  transform: scale(1.06);
  box-shadow: 0 0 60px rgba(191, 219, 254, 0.65);
}

/* FOOTER 规范：仅放导航与版权，禁止塞文章列表，必须含一句联盟披露 */
.site-footer {
  background: #090d16;
  color: #94a3b8;
  padding: 50px 0 30px;
  font-size: 0.9rem;
  border-top: 1px solid #1e293b;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 22px;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-nav a {
  color: #94a3b8;
  font-size: 0.92rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.footer-nav a:hover {
  color: #ffffff;
}

.footer-disclosure {
  font-size: 0.85rem;
  color: #64748b;
  max-width: 600px;
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 0.82rem;
  color: #475569;
  border-top: 1px solid #1e293b;
  padding-top: 20px;
  width: 100%;
  flex-wrap: wrap;
}

/* 移动端吸底 CTA */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-top: 1px solid var(--dc-sky-mist);
  padding: 10px 16px;
  box-shadow: 0 -4px 16px rgba(15, 23, 42, 0.08);
}

.mobile-sticky-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto;
}

.mobile-sticky-cta__text {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.mobile-sticky-cta__text small {
  display: block;
  font-size: 0.74rem;
  font-weight: 400;
  color: var(--text-whisper);
}

/* 教程与文章排版适配 */
.page-hero {
  padding: 50px 0 30px;
  text-align: center;
}

.page-hero__title {
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  font-family: var(--font-serif);
  margin-bottom: 12px;
}

.page-hero__meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-whisper);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--dc-card-bg);
  backdrop-filter: var(--blur-glass);
  border: 1px solid var(--dc-card-border);
  border-radius: var(--radius-window);
  padding: 26px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.06);
  border-color: #ffffff;
}

.article-card__thumb {
  margin-bottom: 16px;
  border-radius: 8px;
  overflow: hidden;
  background: rgba(241, 245, 249, 0.8);
}

.article-card__tag {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 2px 10px;
  background: rgba(219, 234, 254, 0.5);
  border-radius: 12px;
  color: var(--dc-electric-blue);
  margin-bottom: 12px;
  font-weight: 600;
}

.article-card__title {
  font-size: 1.18rem;
  font-family: var(--font-serif);
  margin-bottom: 10px;
  line-height: 1.4;
}

.article-card__title a {
  color: var(--text-primary);
}

.article-card__title a:hover {
  color: var(--dc-electric-blue);
}

.article-card__desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed rgba(203, 213, 225, 0.7);
  font-size: 0.82rem;
  color: var(--text-whisper);
}

.article-layout {
  padding: 44px 0;
}

.article-content {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: var(--blur-glass);
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-window);
  padding: 40px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.04);
}

.article-content h1 {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-family: var(--font-serif);
  margin-bottom: 16px;
}

.article-header-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 18px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--dc-sky-mist);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-whisper);
  flex-wrap: wrap;
}

.article-lead {
  font-size: 1.08rem;
  line-height: 1.8;
  color: var(--text-primary);
  background: rgba(241, 245, 249, 0.75);
  border-left: 3px solid var(--dc-electric-blue);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin-bottom: 30px;
}

.article-content h2 {
  font-size: 1.45rem;
  margin: 34px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(203, 213, 225, 0.8);
}

.article-content h3 {
  font-size: 1.18rem;
  margin: 22px 0 12px;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--text-muted);
}

.article-content li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.article-content p {
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.2rem;
  color: var(--text-muted);
}

.article-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--dc-sky-mist);
  border-radius: 8px;
  background: #ffffff;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--dc-sky-mist);
}

.data-table th {
  background: rgba(241, 245, 249, 0.9);
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.article-cta-box {
  background: radial-gradient(circle at 50% 50%, rgba(219, 234, 254, 0.4) 0%, rgba(248, 250, 252, 0.95) 100%);
  border: 1px solid rgba(191, 219, 254, 0.8);
  border-radius: var(--radius-window);
  padding: 34px 26px;
  margin: 36px 0 24px;
  text-align: center;
}

.article-cta-box__title {
  font-size: 1.4rem;
  font-family: var(--font-serif);
  margin-bottom: 10px;
}

.article-cta-box__desc {
  font-size: 0.96rem;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto 22px;
}

.article-rel-links {
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--dc-sky-mist);
}

.article-rel-links__title {
  font-size: 1.1rem;
  font-family: var(--font-serif);
  margin-bottom: 12px;
}

.article-rel-links__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-left: 0;
}

.legal-card {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: var(--blur-glass);
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-window);
  padding: 40px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.04);
}

.legal-card h1 {
  font-size: 2.1rem;
  font-family: var(--font-serif);
  margin-bottom: 8px;
}

.legal-card__date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-whisper);
  margin-bottom: 26px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--dc-sky-mist);
}

.legal-card h2 {
  font-size: 1.35rem;
  margin: 26px 0 12px;
}

.legal-card p,
.legal-card li {
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.legal-card ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

/* 响应式断点 */
@media (max-width: 992px) {
  .pricing-grid,
  .scenarios-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .hero-liminal-title {
    font-size: 2.1rem;
  }
  .article-content,
  .legal-card {
    padding: 24px 18px;
  }
  .mobile-sticky-cta {
    display: block;
  }
  body {
    padding-bottom: 60px;
  }
}