/* ==========================================================================
   XFLTD 养鸡场 (xfltd.shop) - 2026 官方旗舰落地页原生样式规范
   纯原生 CSS3 架构 · 零外部重型库 · 硬件加速动态背景 · 秒开极速体验
   ========================================================================== */

:root {
  --bg-dark: #040814;
  --bg-card: rgba(13, 22, 41, 0.78);
  --bg-card-hover: rgba(22, 36, 66, 0.88);
  --bg-card-alt: rgba(15, 25, 46, 0.65);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(245, 158, 11, 0.45);
  --border-cyan: rgba(56, 189, 248, 0.4);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-gold: #f59e0b;
  --accent-gold-light: #fbbf24;
  --accent-amber: #d97706;
  --accent-cyan: #38bdf8;
  --accent-blue: #2563eb;
  --accent-green: #10b981;
  --accent-rose: #f43f5e;
  --accent-purple: #a855f7;
  --accent-purple-light: #c084fc;
  --accent-purple-frost: #e9d5ff;
  --accent-purple-deep: #7c3aed;

  --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #fbbf24 50%, #d97706 100%);
  --gradient-ice-purple: linear-gradient(135deg, #d8b4fe 0%, #a855f7 45%, #7c3aed 100%);
  --gradient-ice-text: linear-gradient(135deg, #ffffff 0%, #f3e8ff 22%, #d8b4fe 55%, #a855f7 100%);
  --gradient-cyan: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
  --gradient-rooster: linear-gradient(135deg, #f59e0b 0%, #ea580c 50%, #dc2626 100%);
  --gradient-card: linear-gradient(180deg, rgba(22, 36, 66, 0.7) 0%, rgba(13, 22, 41, 0.88) 100%);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.75);
  --shadow-gold: 0 0 28px rgba(245, 158, 11, 0.35);
  --shadow-cyan: 0 0 28px rgba(56, 189, 248, 0.3);

  --container-max: 1240px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

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

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

ul {
  list-style: none;
}

/* ==========================================================================
   纯 CSS3 动态硬件加速背景 (无需重型 JS，GPU 丝滑渲染，秒开级)
   ========================================================================== */
.dynamic-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -10;
  overflow: hidden;
  pointer-events: none;
  background: radial-gradient(circle at 50% 12%, #0e1b38 0%, #040814 88%);
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(85px);
  opacity: 0.35;
  will-change: transform;
}

.orb-1 {
  width: 580px;
  height: 580px;
  background: radial-gradient(circle, #a855f7 0%, rgba(168, 85, 247, 0) 70%);
  top: -120px;
  left: 8%;
  animation: floatOrb1 24s ease-in-out infinite alternate;
}

.orb-2 {
  width: 660px;
  height: 660px;
  background: radial-gradient(circle, #0284c7 0%, rgba(2, 132, 199, 0) 70%);
  top: 32%;
  right: -90px;
  animation: floatOrb2 28s ease-in-out infinite alternate;
}

.orb-3 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #ea580c 0%, rgba(234, 88, 12, 0) 70%);
  bottom: 6%;
  left: 18%;
  animation: floatOrb3 22s ease-in-out infinite alternate;
}

.cyber-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, rgba(0,0,0,0.3) 70%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, rgba(0,0,0,0.3) 70%, transparent 100%);
}

/* ==========================================================================
   背景动态点缀圆点与微粒系统 (纯 CSS3 硬件加速，零耗能)
   ========================================================================== */
.cyber-dots {
  position: absolute;
  inset: -60px;
  background-image: 
    radial-gradient(rgba(192, 132, 252, 0.28) 1.5px, transparent 1.5px),
    radial-gradient(rgba(56, 189, 248, 0.22) 1.2px, transparent 1.2px);
  background-size: 42px 42px, 84px 84px;
  background-position: 0 0, 21px 21px;
  mask-image: radial-gradient(ellipse at 50% 35%, rgba(0,0,0,1) 0%, rgba(0,0,0,0.25) 70%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 35%, rgba(0,0,0,1) 0%, rgba(0,0,0,0.25) 70%, transparent 100%);
  animation: driftDots 50s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes driftDots {
  0% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-24px) scale(1.02); }
  100% { transform: translateY(12px) scale(0.98); }
}

.particle-dots {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  will-change: transform, opacity;
}

/* 独立动态点缀光斑圆点 */
.dot-1 {
  width: 6px;
  height: 6px;
  background: #c084fc;
  box-shadow: 0 0 14px 2px rgba(192, 132, 252, 0.95);
  top: 14%;
  left: 12%;
  animation: floatDot1 7s ease-in-out infinite alternate;
}

.dot-2 {
  width: 4px;
  height: 4px;
  background: #38bdf8;
  box-shadow: 0 0 10px 2px rgba(56, 189, 248, 0.9);
  top: 26%;
  left: 23%;
  animation: floatDot2 9s ease-in-out infinite alternate;
}

.dot-3 {
  width: 7px;
  height: 7px;
  background: #e9d5ff;
  box-shadow: 0 0 16px 3px rgba(233, 213, 255, 0.95);
  top: 16%;
  right: 14%;
  animation: floatDot3 8s ease-in-out infinite alternate;
}

.dot-4 {
  width: 5px;
  height: 5px;
  background: #a855f7;
  box-shadow: 0 0 12px 2px rgba(168, 85, 247, 0.9);
  top: 38%;
  right: 20%;
  animation: floatDot1 11s ease-in-out infinite alternate;
}

.dot-5 {
  width: 4px;
  height: 4px;
  background: #c084fc;
  box-shadow: 0 0 10px 2px rgba(192, 132, 252, 0.85);
  top: 52%;
  left: 8%;
  animation: floatDot2 8.5s ease-in-out infinite alternate;
}

.dot-6 {
  width: 6px;
  height: 6px;
  background: #38bdf8;
  box-shadow: 0 0 14px 2px rgba(56, 189, 248, 0.9);
  top: 66%;
  left: 28%;
  animation: floatDot3 10s ease-in-out infinite alternate;
}

.dot-7 {
  width: 5px;
  height: 5px;
  background: #d8b4fe;
  box-shadow: 0 0 12px 2px rgba(216, 180, 254, 0.9);
  top: 60%;
  right: 11%;
  animation: floatDot1 9.5s ease-in-out infinite alternate;
}

.dot-8 {
  width: 4px;
  height: 4px;
  background: #a855f7;
  box-shadow: 0 0 10px 2px rgba(168, 85, 247, 0.85);
  top: 78%;
  right: 26%;
  animation: floatDot2 12s ease-in-out infinite alternate;
}

.dot-9 {
  width: 6px;
  height: 6px;
  background: #e9d5ff;
  box-shadow: 0 0 14px 2px rgba(233, 213, 255, 0.9);
  top: 32%;
  left: 48%;
  animation: floatDot3 7.5s ease-in-out infinite alternate;
}

.dot-10 {
  width: 4px;
  height: 4px;
  background: #38bdf8;
  box-shadow: 0 0 10px 2px rgba(56, 189, 248, 0.85);
  top: 84%;
  left: 16%;
  animation: floatDot1 10.5s ease-in-out infinite alternate;
}

.dot-11 {
  width: 5px;
  height: 5px;
  background: #c084fc;
  box-shadow: 0 0 12px 2px rgba(192, 132, 252, 0.9);
  top: 9%;
  left: 38%;
  animation: floatDot2 9s ease-in-out infinite alternate;
}

.dot-12 {
  width: 5px;
  height: 5px;
  background: #d8b4fe;
  box-shadow: 0 0 12px 2px rgba(216, 180, 254, 0.9);
  top: 45%;
  left: 18%;
  animation: floatDot3 11.5s ease-in-out infinite alternate;
}

@keyframes floatDot1 {
  0% { transform: translateY(0) scale(0.9); opacity: 0.45; }
  50% { transform: translateY(-22px) scale(1.3); opacity: 1; }
  100% { transform: translateY(12px) scale(0.85); opacity: 0.4; }
}

@keyframes floatDot2 {
  0% { transform: translateX(0) translateY(0) scale(1); opacity: 0.5; }
  50% { transform: translateX(18px) translateY(-18px) scale(1.35); opacity: 1; }
  100% { transform: translateX(-12px) translateY(14px) scale(0.9); opacity: 0.45; }
}

@keyframes floatDot3 {
  0% { transform: scale(0.8) translateY(0); opacity: 0.4; }
  50% { transform: scale(1.4) translateY(-26px); opacity: 1; }
  100% { transform: scale(0.85) translateY(16px); opacity: 0.45; }
}

@keyframes floatOrb1 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(70px, 50px) scale(1.1); }
  100% { transform: translate(-50px, 90px) scale(0.95); }
}

@keyframes floatOrb2 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-90px, 70px) scale(1.12); }
  100% { transform: translate(40px, -50px) scale(0.92); }
}

@keyframes floatOrb3 {
  0% { transform: translate(0, 0) scale(0.92); }
  50% { transform: translate(100px, -60px) scale(1.08); }
  100% { transform: translate(-30px, -30px) scale(1.03); }
}

/* ==========================================================================
   页面容器与基础网格
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.site-wrapper {
  position: relative;
  z-index: 1;
}

.section {
  padding: 85px 0;
  position: relative;
}

.section-alt {
  background: rgba(13, 22, 41, 0.4);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-gold-light);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 3.8vw, 40px);
  font-weight: 800;
  line-height: 1.25;
  color: #ffffff;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   按钮系统规范 (强制符合 CTA 规范)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  padding: 13px 28px;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
  gap: 8px;
}

.btn-primary {
  background: var(--gradient-ice-purple);
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.45);
  font-weight: 800;
  border: 1px solid rgba(233, 213, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(168, 85, 247, 0.65);
  filter: brightness(1.1);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}

.btn-cyan {
  background: var(--gradient-cyan);
  color: #0b1120;
  font-weight: 800;
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.35);
}

.btn-cyan:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(56, 189, 248, 0.5);
  filter: brightness(1.08);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 13.5px;
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   顶部固定导航栏 (左侧展示品牌专属 Logo)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(4, 8, 20, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
}

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

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

.nav-menu {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-link {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

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

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-gold);
  transition: width 0.2s ease;
}

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

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

/* ==========================================================================
   首屏横幅区 (Hero Section)
   ========================================================================== */
.hero-section {
  padding: 85px 0 65px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.35);
  border-radius: var(--radius-full);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--accent-purple-frost);
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(32px, 4.8vw, 54px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -1px;
  color: #ffffff;
  margin-bottom: 22px;
}

.hero-title-main {
  display: block;
  font-size: clamp(32px, 4.8vw, 54px);
  font-weight: 900;
  margin-bottom: 8px;
}

.hero-title-sub {
  display: block;
  font-size: clamp(20px, 2.7vw, 36px);
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.35;
}

.nowrap-phrase {
  white-space: nowrap;
  display: inline-block;
}

.hero-highlight {
  background: var(--gradient-ice-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  filter: drop-shadow(0 0 20px rgba(168, 85, 247, 0.4));
}

.hero-desc {
  max-width: 820px;
  margin: 0 auto 36px;
  font-size: 17.5px;
  line-height: 1.75;
  color: #cbd5e1;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 54px;
  flex-wrap: wrap;
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1040px;
  margin: 0 auto;
}

.hero-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px 18px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.hero-stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 158, 11, 0.4);
}

.hero-stat-val {
  font-size: 26px;
  font-weight: 900;
  color: var(--accent-gold-light);
  margin-bottom: 4px;
}

.hero-stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

/* ==========================================================================
   核心要求：所有价格同排展示 (Pricing Cards Strictly In One Row)
   ========================================================================== */
.pricing-section {
  position: relative;
}

.pricing-row-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
  backdrop-filter: blur(12px);
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-gold);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(30, 48, 84, 0.82) 0%, rgba(13, 22, 41, 0.95) 100%);
  border: 2px solid var(--accent-gold);
  box-shadow: var(--shadow-gold);
  transform: scale(1.02);
  z-index: 2;
}

.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-6px);
}

.plan-top-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-rooster);
  color: #ffffff;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.4);
  white-space: nowrap;
}

.pricing-header {
  margin-bottom: 22px;
  text-align: center;
}

.plan-tier-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 3px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.plan-name {
  font-size: 22px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 8px;
}

.plan-target {
  font-size: 12.5px;
  color: var(--text-muted);
  min-height: 38px;
  line-height: 1.5;
}

.pricing-figure {
  margin: 16px 0 6px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.price-currency {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-gold-light);
}

.price-num {
  font-size: 46px;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}

.price-cycle {
  font-size: 14px;
  color: var(--text-muted);
}

.pricing-features {
  margin: 20px 0 26px;
  padding-top: 18px;
  border-top: 1px solid var(--border-color);
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: #cbd5e1;
  margin-bottom: 11px;
  line-height: 1.45;
}

.pricing-features li strong {
  color: #ffffff;
}

.check-icon {
  color: var(--accent-green);
  font-weight: 900;
  flex-shrink: 0;
}

.pricing-card-footer {
  margin-top: auto;
}

.pricing-tip {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 8px;
}

/* ==========================================================================
   产品核心优势模块 (Features Grid)
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

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

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

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

.feature-icon-wrapper {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   节点实测与晚高峰延迟测速区
   ========================================================================== */
.speed-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  overflow-x: auto;
  box-shadow: var(--shadow-md);
}

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

.speed-table th {
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
}

.speed-table td {
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: #cbd5e1;
}

.speed-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.status-green {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.status-green::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34d399;
}

/* ==========================================================================
   流媒体与 AI 全绿解锁展示徽章
   ========================================================================== */
.unlock-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-top: 36px;
}

.unlock-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
  transition: var(--transition);
}

.unlock-item:hover {
  border-color: rgba(56, 189, 248, 0.4);
  transform: translateY(-3px);
}

.unlock-icon {
  font-size: 26px;
  margin-bottom: 8px;
}

.unlock-name {
  font-size: 13.5px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 2px;
}

.unlock-status {
  font-size: 11px;
  color: #34d399;
  font-weight: 600;
}

/* ==========================================================================
   多平台客户端一键配置卡片 (Clash, Mihomo Party, 小火箭等)
   ========================================================================== */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

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

.client-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 158, 11, 0.4);
  background: var(--bg-card-hover);
}

.client-icon {
  font-size: 34px;
  margin-bottom: 14px;
}

.client-card h4 {
  font-size: 17px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 6px;
}

.client-card p {
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 14px;
}

/* ==========================================================================
   精选文章资讯与内部跳转链接区 (Articles Grid)
   ========================================================================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-sm);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.article-category {
  color: var(--accent-gold-light);
  font-weight: 700;
  background: rgba(245, 158, 11, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.article-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.45;
  margin-bottom: 12px;
}

.article-card h3 a:hover {
  color: var(--accent-gold-light);
}

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

.article-link {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--accent-gold-light);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-link:hover {
  gap: 10px;
}

/* ==========================================================================
   用户评价口碑区 (Reviews Testimonials)
   ========================================================================== */
.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: 30px 24px;
  transition: var(--transition);
}

.review-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 158, 11, 0.35);
}

.review-rating {
  color: var(--accent-gold-light);
  margin-bottom: 14px;
  font-size: 15px;
}

.review-text {
  font-size: 14.5px;
  color: #cbd5e1;
  line-height: 1.7;
  margin-bottom: 20px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--accent-gold-light);
}

.author-info h4 {
  font-size: 14.5px;
  font-weight: 700;
  color: #ffffff;
}

.author-info span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   常见问题 FAQ 手风琴式原生展示 (纯原生 details/summary，秒开零 JS)
   ========================================================================== */
.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: rgba(245, 158, 11, 0.35);
}

.faq-summary {
  padding: 20px 24px;
  font-size: 16.5px;
  font-weight: 700;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
}

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

.faq-summary::after {
  content: "+";
  font-size: 22px;
  color: var(--accent-gold-light);
  font-weight: 400;
  transition: transform 0.25s ease;
}

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

.faq-answer {
  padding: 0 24px 22px;
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.75;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 16px;
}

/* ==========================================================================
   底栏外链与友链专区 (Outlinks & External Resources)
   ========================================================================== */
.outlinks-section {
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  background: rgba(3, 7, 18, 0.6);
}

.outlinks-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  justify-content: center;
  align-items: center;
}

.outlink-item {
  font-size: 13.5px;
  color: var(--text-muted);
}

.outlink-item:hover {
  color: var(--accent-gold-light);
}

/* ==========================================================================
   页脚规范 (Footer)
   ========================================================================== */
.site-footer {
  background: #02050e;
  border-top: 1px solid var(--border-color);
  padding: 65px 0 35px;
  font-size: 14px;
  color: var(--text-muted);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand-desc {
  margin-top: 16px;
  line-height: 1.7;
  font-size: 13.5px;
  color: var(--text-secondary);
}

.footer-heading {
  font-size: 15px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 18px;
}

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

.footer-links a {
  color: var(--text-secondary);
  font-size: 13.5px;
}

.footer-links a:hover {
  color: var(--accent-gold-light);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 13px;
}

/* ==========================================================================
   移动端与响应式自适应适配 (保证纯 HTML/CSS 秒开与良好视觉体验)
   ========================================================================== */
@media (max-width: 1080px) {
  .pricing-row-container {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-6px);
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid, .articles-grid, .reviews-grid, .clients-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .unlock-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none; /* 移动端精简头部，确保秒开 */
  }
  .nav-container {
    height: 64px;
  }
  .pricing-row-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .hero-stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .features-grid, .articles-grid, .reviews-grid, .clients-grid {
    grid-template-columns: 1fr;
  }
  .unlock-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-title-main {
    font-size: 26px;
    margin-bottom: 6px;
  }
  .hero-title-sub {
    font-size: 18px;
    line-height: 1.5;
  }
  .btn {
    width: 100%;
  }
  .hero-cta-group {
    flex-direction: column;
  }
}