/* ==========================================================================
   IPLCSub (iplcsub.mom) - 纯原生 CSS 极速样式表
   零重型库依赖 · 极致秒开 · 现代化玻璃拟态与赛博暗黑极光美学
   ========================================================================== */

:root {
  --bg-primary: #060913;
  --bg-secondary: #0b1120;
  --bg-card: rgba(15, 23, 42, 0.72);
  --bg-card-hover: rgba(30, 41, 59, 0.82);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --border-color: rgba(255, 140, 66, 0.18);
  --border-glow: rgba(255, 140, 66, 0.4);
  
  --primary-cyan: #ff8c42;
  --primary-blue: #ffa940;
  --primary-orange: #ff8c42;
  --primary-ice-orange: #ffa940;
  --accent-purple: #ff6b35;
  --accent-pink: #f43f5e;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --grad-hero: linear-gradient(135deg, #ffa940 0%, #ff8c42 50%, #ff5722 100%);
  --grad-card-glow: radial-gradient(circle at 50% 0%, rgba(255, 140, 66, 0.15) 0%, transparent 70%);
  --grad-btn: linear-gradient(135deg, #ffb347 0%, #ff6b35 50%, #f53636 100%);
  --grad-btn-hover: linear-gradient(135deg, #ffc56e 0%, #ff7e4a 50%, #ff4d4f 100%);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px rgba(255, 140, 66, 0.4);
  --shadow-btn: 0 8px 22px -4px rgba(255, 107, 53, 0.55), 0 0 16px rgba(255, 140, 66, 0.35);
  
  --container-max: 1280px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  scroll-behavior: smooth;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  background-color: #060913;
}

/* ==========================================================================
   动态灵狐幻境背景系统 (Dynamic Ethereal Fox Backdrop)
   4 大高清神态灵狐轮播 · 视差立体微动 · 径向边缘羽化 · 纯原生零依赖
   ========================================================================== */

.fox-bg-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background-color: #060913;
}

.fox-bg-slide {
  position: absolute;
  top: -4%;
  left: -4%;
  width: 108%;
  height: 108%;
  background-size: cover;
  background-position: center 25%;
  background-repeat: no-repeat;
  opacity: 0;
  transform: scale(1.06) translate3d(0, 0, 0);
  transition: opacity 2s cubic-bezier(0.4, 0, 0.2, 1), transform 12s ease-out;
  filter: brightness(0.92) contrast(1.15) saturate(1.22);
  will-change: opacity, transform;
}

.fox-bg-slide.active {
  opacity: 0.82;
  transform: scale(1.0) translate3d(0, 0, 0);
}

/* 径向暗角与星云融合滤镜，确保文字与前景卡片绝对清晰秒读 */
.fox-bg-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 32%, rgba(6, 9, 19, 0.22) 0%, rgba(6, 9, 19, 0.65) 58%, #060913 96%);
  pointer-events: none;
}

/* 动态背景星轨画布 */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
  opacity: 0.85;
}

/* 视差漂浮灵狐精灵层 */
.fox-spirit-layer {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
}

.fox-spirit-orb {
  position: absolute;
  border-radius: 50%;
  overflow: hidden;
  opacity: 0.58;
  filter: drop-shadow(0 0 35px rgba(255, 140, 66, 0.45));
  mask-image: radial-gradient(circle at center, black 40%, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 75%);
  transition: transform 0.4s ease-out;
}

.fox-spirit-orb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 灵狐 1: 右上九尾天狐 */
.fox-spirit-orb.orb-1 {
  top: 8%;
  right: -2%;
  width: clamp(280px, 32vw, 480px);
  height: clamp(280px, 32vw, 480px);
  animation: floatFoxOrb1 16s ease-in-out infinite alternate;
}

/* 灵狐 2: 左侧赛博霓光狐 */
.fox-spirit-orb.orb-2 {
  top: 48%;
  left: -4%;
  width: clamp(260px, 30vw, 440px);
  height: clamp(260px, 30vw, 440px);
  animation: floatFoxOrb2 18s ease-in-out infinite alternate;
}

/* 灵狐 3: 右下极光冰原狐 */
.fox-spirit-orb.orb-3 {
  bottom: 5%;
  right: 5%;
  width: clamp(240px, 28vw, 400px);
  height: clamp(240px, 28vw, 400px);
  animation: floatFoxOrb3 20s ease-in-out infinite alternate;
}

@keyframes floatFoxOrb1 {
  0% { transform: translate3d(0, 0, 0) rotate(0deg) scale(1); }
  50% { transform: translate3d(-25px, 20px, 0) rotate(2deg) scale(1.04); }
  100% { transform: translate3d(-10px, 35px, 0) rotate(-1deg) scale(0.98); }
}

@keyframes floatFoxOrb2 {
  0% { transform: translate3d(0, 0, 0) rotate(0deg) scale(1); }
  50% { transform: translate3d(30px, -25px, 0) rotate(-2.5deg) scale(1.05); }
  100% { transform: translate3d(15px, -10px, 0) rotate(1.5deg) scale(0.97); }
}

@keyframes floatFoxOrb3 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-20px, -30px, 0) scale(1.06); }
  100% { transform: translate3d(10px, -15px, 0) scale(0.96); }
}

/* 底部灵狐幻境切换微件 */
.fox-switcher-pill {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(15, 23, 42, 0.78);
  border: 1px solid rgba(255, 140, 66, 0.35);
  border-radius: var(--radius-full);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.6), 0 0 15px rgba(255, 140, 66, 0.25);
  font-size: 12.5px;
  color: var(--text-muted);
  user-select: none;
  transition: var(--transition);
}

.fox-switcher-pill:hover {
  border-color: var(--primary-cyan);
  box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.6), 0 0 25px rgba(255, 140, 66, 0.45);
}

.fox-switch-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 12px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
}

.fox-switch-btn:hover,
.fox-switch-btn.active {
  background: rgba(255, 140, 66, 0.2);
  color: #ffa940;
  font-weight: 600;
}

/* 常用排版工具类 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

ul, ol {
  list-style: none;
}

/* 发光渐变文字 */
.text-gradient {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none !important;
}

/* 冰橙色极光高亮渐变 (Ice Orange) */
.text-ice-orange {
  background: linear-gradient(90deg, #ffd166 0%, #ff9538 32%, #ff5722 75%, #ff3838 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  text-shadow: none !important;
  filter: drop-shadow(0 0 18px rgba(255, 120, 40, 0.72)) drop-shadow(0 2px 5px rgba(0, 0, 0, 0.9));
}

.text-cyan { color: var(--primary-cyan); }
.text-blue { color: var(--primary-blue); }
.text-green { color: var(--accent-green); }
.text-amber { color: var(--accent-amber); }

/* 头部导航栏 */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(6, 9, 19, 0.78);
  border-bottom: 1px solid rgba(255, 140, 66, 0.15);
  transition: var(--transition);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.brand-logo img,
.brand-logo svg {
  height: 42px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-cyan);
  transition: var(--transition);
  transform: translateX(-50%);
  border-radius: 2px;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* 按钮通用规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-btn);
  color: #ffffff;
  font-weight: 700;
  box-shadow: var(--shadow-btn);
  text-shadow: 0 1px 2px rgba(90, 15, 0, 0.45);
}

.btn-primary:hover {
  background: var(--grad-btn-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -3px rgba(255, 107, 53, 0.72), 0 0 24px rgba(255, 140, 66, 0.5);
  color: #ffffff;
}

.btn-secondary {
  background: rgba(255, 140, 66, 0.08);
  color: #ffa940;
  border: 1px solid rgba(255, 140, 66, 0.35);
}

.btn-secondary:hover {
  background: rgba(255, 140, 66, 0.18);
  border-color: #ff8c42;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(255, 140, 66, 0.35);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13.5px;
}

.btn-lg {
  padding: 14px 34px;
  font-size: 16.5px;
}

/* Hero 首屏区 */
.hero-section {
  padding: 90px 0 60px;
  text-align: center;
  position: relative;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(255, 140, 66, 0.08);
  border: 1px solid rgba(255, 140, 66, 0.28);
  border-radius: var(--radius-full);
  font-size: 13.5px;
  font-weight: 500;
  color: #ffa940;
  margin-bottom: 24px;
  box-shadow: 0 0 15px rgba(255, 140, 66, 0.2);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  position: relative;
}

.pulse-dot::after {
  content: "";
  position: absolute;
  top: -4px;
  left: -4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-green);
  opacity: 0.6;
  animation: pulse-ring 1.8s infinite ease-out;
}

@keyframes pulse-ring {
  0% { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(2.2); opacity: 0; }
}

main {
  position: relative;
  z-index: 10;
}

.hero-title {
  font-size: clamp(34px, 5.5vw, 62px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.5px;
  margin-bottom: 22px;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.95), 0 2px 6px rgba(0, 0, 0, 0.95);
}

.hero-title span,
.hero-title .text-gradient,
.hero-title .text-ice-orange {
  text-shadow: none !important;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 19px);
  color: #e2e8f0;
  max-width: 820px;
  margin: 0 auto 36px;
  line-height: 1.7;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.95);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 45px;
}

.trust-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 28px;
  font-weight: 800;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.stat-number span {
  color: #ffa940;
}

.stat-label {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 4px;
}

/* 核心特性区 */
.features-section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-tag {
  font-size: 13px;
  font-weight: 700;
  color: #ffa940;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
  display: inline-block;
}

.section-title {
  font-size: clamp(26px, 3.8vw, 38px);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  color: #ffffff;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.65;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.feature-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  backdrop-filter: blur(12px);
  transition: var(--transition);
  overflow: hidden;
}

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

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  box-shadow: 0 16px 36px -10px rgba(255, 140, 66, 0.25);
}

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

.feature-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: rgba(255, 140, 66, 0.1);
  border: 1px solid rgba(255, 140, 66, 0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: #ffa940;
}

.feature-card-title {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

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

/* 节点延迟监控实时看板 */
.network-status-section {
  padding: 40px 0 80px;
}

.status-board-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 32px;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
}

.status-board-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 20px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.status-indicator-live {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--accent-green);
  font-weight: 600;
}

.status-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.status-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14.5px;
}

.status-table th {
  color: var(--text-dim);
  font-weight: 600;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.status-table td {
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--text-main);
}

.status-table tr:hover td {
  background: rgba(255, 140, 66, 0.05);
}

.node-cell {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.flag-icon {
  font-size: 18px;
}

.tag-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
}

.tag-pill.cyan,
.tag-pill.orange { background: rgba(255, 140, 66, 0.12); color: #ffa940; border: 1px solid rgba(255, 140, 66, 0.35); }
.tag-pill.green { background: rgba(16, 185, 129, 0.12); color: var(--accent-green); border: 1px solid rgba(16, 185, 129, 0.3); }
.tag-pill.purple { background: rgba(129, 140, 248, 0.12); color: var(--accent-purple); border: 1px solid rgba(129, 140, 248, 0.3); }

/* ==========================================================================
   套餐定价区 (PRICING SECTION)
   用户核心需求：所有价格必须同排 (ALL PLANS IN THE SAME ROW ON DESKTOP)
   ========================================================================== */
.pricing-section {
  padding: 90px 0;
  position: relative;
}

.pricing-note-banner {
  text-align: center;
  margin-bottom: 36px;
  color: var(--text-muted);
  font-size: 14px;
}

/* 核心：桌面端严格 5 列并排对齐 */
.pricing-grid-same-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}

.pricing-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(14px);
  transition: var(--transition);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: #ff8c42;
  box-shadow: 0 16px 36px -8px rgba(255, 140, 66, 0.35);
  background: var(--bg-card-hover);
}

/* 爆款高亮推荐卡片 */
.pricing-card.featured {
  background: linear-gradient(180deg, rgba(28, 20, 15, 0.95) 0%, rgba(14, 12, 16, 0.9) 100%);
  border: 2px solid #ff8c42;
  box-shadow: 0 0 30px rgba(255, 140, 66, 0.35);
  transform: scale(1.02);
  z-index: 2;
}

.pricing-card.featured:hover {
  transform: scale(1.04) translateY(-6px);
  box-shadow: 0 0 45px rgba(255, 140, 66, 0.55);
}

.card-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-btn);
  color: #ffffff;
  font-size: 11.5px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
  white-space: nowrap;
}

.plan-header {
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 20px;
  margin-bottom: 20px;
}

.plan-title {
  font-size: 19px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.plan-subtitle {
  font-size: 12.5px;
  color: var(--text-muted);
  min-height: 38px;
  line-height: 1.45;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin: 16px 0 10px;
}

.price-currency {
  font-size: 18px;
  font-weight: 700;
  color: #ffa940;
}

.price-val {
  font-size: 38px;
  font-weight: 900;
  letter-spacing: -1px;
  color: #ffffff;
  margin: 0 3px;
}

.price-period {
  font-size: 13.5px;
  color: var(--text-dim);
}

.traffic-pill {
  display: inline-block;
  background: rgba(255, 140, 66, 0.1);
  color: #ffa940;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 140, 66, 0.25);
  margin-top: 6px;
}

.plan-features-list {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin-bottom: 24px;
}

.plan-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.45;
}

.feature-check {
  color: var(--accent-green);
  flex-shrink: 0;
  font-weight: 700;
  margin-top: 1px;
}

.plan-btn-wrap {
  margin-top: auto;
}

.plan-btn-wrap .btn {
  width: 100%;
}

/* 客户端下载与使用指南 */
.guide-section {
  padding: 80px 0;
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.client-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 26px 20px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

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

.client-os-icon {
  font-size: 32px;
  margin-bottom: 14px;
}

.client-name {
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.client-desc {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 18px;
}

/* 专栏文章列表区 (SEO 文章聚合) */
.articles-section {
  padding: 90px 0;
  background: rgba(11, 17, 32, 0.4);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: #ff8c42;
  background: var(--bg-card-hover);
  box-shadow: 0 16px 36px -10px rgba(255, 140, 66, 0.35);
}

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

.article-card-title {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.45;
  margin-bottom: 12px;
}

.article-card-title a:hover {
  color: #ffa940;
}

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

.article-tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}

.article-tag {
  font-size: 11.5px;
  padding: 3px 9px;
  background: rgba(255, 140, 66, 0.1);
  border: 1px solid rgba(255, 140, 66, 0.28);
  border-radius: var(--radius-sm);
  color: #ffa940;
  transition: var(--transition);
}

.article-tag:hover {
  background: rgba(255, 140, 66, 0.22);
  border-color: #ff8c42;
  color: #ffffff;
}

.article-link-action {
  font-size: 13.5px;
  font-weight: 700;
  color: #ff8c42;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.article-link-action:hover {
  color: #ffb347;
  gap: 10px;
}

.articles-section .btn-secondary {
  background: rgba(255, 140, 66, 0.08);
  color: #ffa940;
  border: 1px solid rgba(255, 140, 66, 0.35);
}

.articles-section .btn-secondary:hover {
  background: rgba(255, 140, 66, 0.18);
  border-color: #ff8c42;
  color: #ffffff;
  box-shadow: 0 0 20px rgba(255, 140, 66, 0.4);
}

/* 权威外链与生态工具区 */
.ecosystem-section {
  padding: 70px 0;
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.eco-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: var(--transition);
}

.eco-item:hover {
  border-color: var(--primary-cyan);
  transform: translateY(-3px);
  background: var(--bg-card-hover);
}

.eco-icon {
  font-size: 26px;
}

.eco-name {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
}

.eco-desc {
  font-size: 12px;
  color: var(--text-dim);
}

/* 用户真实评价区 (TESTIMONIALS) */
.reviews-section {
  padding: 90px 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

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

.review-stars {
  color: #fbbf24;
  font-size: 16px;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 14.5px;
  color: var(--text-main);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

.reviewer-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 16px;
}

.reviewer-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--grad-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #ffffff;
  font-size: 16px;
}

.reviewer-name {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
}

.reviewer-title {
  font-size: 12px;
  color: var(--text-dim);
}

/* 常见问题解答 (FAQ) */
.faq-section {
  padding: 90px 0;
  background: rgba(11, 17, 32, 0.4);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--primary-cyan);
}

.faq-question {
  padding: 20px 24px;
  font-size: 16.5px;
  font-weight: 600;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.faq-toggle-icon {
  font-size: 20px;
  color: var(--primary-cyan);
  transition: transform 0.25s ease;
}

.faq-answer {
  padding: 0 24px 22px;
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 底部 CTA 通栏 */
.bottom-cta-section {
  padding: 80px 0;
  text-align: center;
}

.bottom-cta-box {
  background: linear-gradient(135deg, rgba(28, 20, 15, 0.9) 0%, rgba(15, 12, 18, 0.95) 100%);
  border: 1px solid rgba(255, 140, 66, 0.35);
  border-radius: var(--radius-xl);
  padding: 56px 36px;
  box-shadow: 0 20px 50px -15px rgba(0, 0, 0, 0.7);
  position: relative;
  overflow: hidden;
}

.bottom-cta-box::before {
  content: "";
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 250px;
  background: radial-gradient(circle, rgba(255, 140, 66, 0.22) 0%, transparent 70%);
  pointer-events: none;
}

/* 全局页脚 */
.footer {
  position: relative;
  z-index: 10;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: #04060c;
  padding: 60px 0 30px;
  font-size: 13.5px;
  color: var(--text-dim);
}

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

.footer-col-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-top: 14px;
  max-width: 320px;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 18px;
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.footer-link:hover {
  color: var(--primary-cyan);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 26px;
  flex-wrap: wrap;
  gap: 16px;
}

/* 响应式断点适配 */
@media (max-width: 1200px) {
  .pricing-grid-same-row {
    gap: 12px;
  }
  .pricing-card {
    padding: 22px 14px;
  }
  .price-val {
    font-size: 32px;
  }
}

@media (max-width: 1024px) {
  /* 屏幕适度收缩时保持左右可滚或按行分列 */
  .pricing-grid-same-row {
    grid-template-columns: repeat(3, 1fr);
  }
  .features-grid,
  .articles-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .trust-stats-grid,
  .client-grid,
  .ecosystem-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .pricing-grid-same-row {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }
  .features-grid,
  .articles-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .trust-stats-grid,
  .client-grid,
  .ecosystem-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 32px;
  }
}