/* ===================================================================
   悠兔VPN (YouTu VPN) - Global Enterprise Backbone Network Portal
   Style System: Japanese Healing Anime x Warm Cyber Enterprise Architecture
   Color Palette: ROB Warm Tone System
   =================================================================== */

:root {
  /* ROB + Sakura Cyber Anime Color System */
  --bg-cream: #FFF9F4;         /* 页面主背景: 暖奶油白微粉 */
  --accent-peach: #F6B8A6;     /* 装饰与柔和强调: 蜜桃粉 */
  --accent-pink: #FF5E97;      /* 帅气动漫粉色: 樱落霓虹粉 (Cyber Sakura Pink) */
  --accent-pink-soft: #FF85B3; /* 柔和樱粉 */
  --accent-pink-light: #FFF0F5;/* 浅粉微光底色 */
  --accent-pink-glow: rgba(255, 94, 151, 0.38);
  --primary-orange: #F29A5B;   /* 按钮、重点信息: 落日橙 */
  --primary-orange-hover: #E28847;
  --highlight-honey: #F6D477;  /* 光线、高光区域: 蜂蜜黄 */
  --sage-green: #91B59B;       /* 植物、辅助色: 鼠尾草绿 */
  --sage-green-light: #EBF3ED;
  --sky-blue: #91BDD4;         /* 背景层次与留白: 天空蓝 */
  --sky-blue-light: #EAF3F9;
  --text-coffee: #4A3E39;      /* 标题和正文文字: 质感深咖啡色 */
  --text-coffee-light: #766860;
  --text-coffee-muted: #9E9189;

  /* Gradients: Sunset Orange + Sakura Cyber Pink */
  --gradient-sakura-sunset: linear-gradient(135deg, #FF5E97 0%, #F29A5B 100%);
  --gradient-sakura-hover: linear-gradient(135deg, #FF4586 0%, #FF8547 100%);
  --gradient-sakura-soft: linear-gradient(135deg, rgba(255, 94, 151, 0.12) 0%, rgba(242, 154, 91, 0.08) 100%);
  --gradient-anime-dark: linear-gradient(135deg, #181924 0%, #291F2C 100%);

  /* Card & Surface Tones */
  --surface-white: #FFFFFF;
  --surface-card: #FFFCF8;
  --surface-card-hover: #FFFFFF;
  --surface-card-border: rgba(255, 94, 151, 0.16);
  --surface-card-border-focus: rgba(255, 94, 151, 0.45);
  --border-light: rgba(81, 69, 63, 0.08);

  /* Warm & Neon Anime Shadows */
  --shadow-sm: 0 2px 8px rgba(74, 62, 57, 0.04), 0 1px 3px rgba(255, 94, 151, 0.06);
  --shadow-md: 0 8px 24px rgba(74, 62, 57, 0.07), 0 3px 10px rgba(255, 94, 151, 0.1);
  --shadow-lg: 0 16px 38px rgba(74, 62, 57, 0.09), 0 6px 18px rgba(255, 94, 151, 0.16);
  --shadow-pink-glow: 0 0 24px rgba(255, 94, 151, 0.35);
  --shadow-glow: 0 0 24px rgba(246, 212, 119, 0.35);

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;

  /* Layout Standard */
  --container-width: min(1040px, calc(100% - 48px));
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-family-mono: "SF Mono", Monaco, "Cascadia Code", Consolas, monospace;
}

/* Reset & Base Rules */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--bg-cream);
  color: var(--text-coffee);
  line-height: 1.68;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Background Subtle Atmospheric Pattern with Cyber Sakura Aura */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background-image: 
    radial-gradient(circle at 10% 12%, rgba(255, 94, 151, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 90% 28%, rgba(145, 189, 212, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 50% 55%, rgba(255, 182, 193, 0.12) 0%, transparent 42%),
    radial-gradient(circle at 75% 85%, rgba(246, 212, 119, 0.16) 0%, transparent 48%);
  z-index: -1;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s ease;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Container Standard */
.container {
  width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
}

/* Typography Standards */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-coffee);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.015em;
}

p {
  color: var(--text-coffee-light);
  font-size: 0.98rem;
}

/* Section Header Shared */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(255, 94, 151, 0.12) 0%, rgba(242, 154, 91, 0.12) 100%);
  color: #E84580;
  font-size: 0.82rem;
  font-weight: 800;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  border: 1px solid rgba(255, 94, 151, 0.3);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(255, 94, 151, 0.08);
}

.section-kicker::before {
  content: "✦";
  display: inline-block;
  font-size: 0.85rem;
  color: var(--accent-pink);
  animation: pulse-dot 2s infinite ease-in-out;
}

.section-title {
  font-size: clamp(1.8rem, 3.2vw, 2.35rem);
  margin-bottom: 14px;
  color: var(--text-coffee);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.02rem;
  color: var(--text-coffee-light);
  max-width: 620px;
  margin: 0 auto;
}

/* Global Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 11px 24px;
  border-radius: var(--radius-pill);
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: center;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-sakura-sunset);
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(255, 94, 151, 0.35), 0 2px 6px rgba(242, 154, 91, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 94, 151, 0.48), 0 3px 10px rgba(242, 154, 91, 0.35);
  background: var(--gradient-sakura-hover);
  color: #FFFFFF;
}

.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-25deg);
  transition: 0.75s;
}

.btn-primary:hover::after {
  left: 150%;
}

.btn-secondary {
  background: var(--surface-white);
  color: var(--text-coffee);
  border: 1.5px solid rgba(255, 94, 151, 0.2);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: #FFF9FC;
  border-color: var(--accent-pink);
  color: var(--accent-pink);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), 0 0 16px rgba(255, 94, 151, 0.15);
}

.btn-lg {
  padding: 14px 34px;
  font-size: 1.05rem;
}

.btn-outline {
  border: 1.5px solid var(--accent-pink);
  color: var(--accent-pink);
  background: transparent;
}

.btn-outline:hover {
  background: var(--accent-pink);
  color: #FFFFFF;
  box-shadow: 0 4px 14px var(--accent-pink-glow);
}

/* ===================================================================
   1. Site Notice (贴顶动态服务公告栏)
   =================================================================== */
.site-notice-bar {
  background: linear-gradient(90deg, #FFEBF2 0%, #FFF3E6 50%, #EBF4FA 100%);
  height: 38px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(255, 94, 151, 0.2);
  font-size: 0.84rem;
  color: var(--text-coffee);
}

.notice-content {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.notice-capsule {
  background: var(--gradient-sakura-sunset);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  flex-shrink: 0;
  letter-spacing: 0.04em;
  box-shadow: 0 2px 8px rgba(255, 94, 151, 0.3);
}

.notice-text {
  font-weight: 600;
  color: var(--text-coffee);
}

.notice-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-pink);
  display: inline-block;
  margin-right: 4px;
  box-shadow: 0 0 6px var(--accent-pink);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(1.3); }
}

/* ===================================================================
   2. Sticky Navbar (吸顶全功能导航栏)
   =================================================================== */
.sticky-navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 249, 244, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 94, 151, 0.15);
  transition: all 0.3s ease;
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-badge {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--gradient-sakura-sunset);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(255, 94, 151, 0.35);
  border: 1.5px solid #FFFFFF;
}

.brand-badge svg {
  width: 24px;
  height: 24px;
  fill: #FFFFFF;
}

.brand-name {
  font-weight: 900;
  font-size: 19px;
  color: var(--text-coffee);
  letter-spacing: -0.02em;
}

.brand-tagline {
  font-size: 0.68rem;
  color: var(--text-coffee-muted);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Nav Menu Rules: Strict nowrap, keep-all */
.navbar-menu {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-coffee);
  white-space: nowrap !important;
  word-break: keep-all !important;
  flex-shrink: 0 !important;
  padding: 6px 4px;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2.5px;
  background: var(--gradient-sakura-sunset);
  border-radius: 2px;
  transition: all 0.25s ease;
  transform: translateX(-50%);
}

.nav-link:hover {
  color: #E84580;
}

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

.nav-link.active {
  color: #E84580;
  font-weight: 800;
}

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

.collection-menu {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--surface-white);
  border: 1px solid var(--border-light);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.collection-menu span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-coffee);
  border-radius: 2px;
  transition: all 0.25s ease;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(320px, 85vw);
  height: 100vh;
  background: #FFFDF8;
  z-index: 1000;
  box-shadow: -10px 0 30px rgba(81, 69, 63, 0.15);
  display: flex;
  flex-direction: column;
  padding: 24px;
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-drawer.open {
  right: 0;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 20px;
}

.drawer-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #F5EFE3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-coffee);
  cursor: pointer;
}

.drawer-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.drawer-link {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-coffee);
  padding: 8px 0;
  display: block;
}

.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(81, 69, 63, 0.4);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.drawer-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

/* ===================================================================
   3. Asymmetric Hero Stage (非对称黄金分割 Hero 舞台)
   =================================================================== */
.hero-stage {
  padding: 48px 0 64px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 54% 46%;
  gap: 36px;
  align-items: center;
  min-height: 520px;
}

.hero-text-island {
  padding-right: 18px;
}

.hero-status-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(255, 94, 151, 0.12) 0%, rgba(145, 181, 155, 0.14) 100%);
  color: #B33664;
  font-size: 0.82rem;
  font-weight: 800;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 94, 151, 0.32);
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(255, 94, 151, 0.1);
  letter-spacing: 0.03em;
}

.hero-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-pink);
  box-shadow: 0 0 8px var(--accent-pink);
  animation: pulse-dot 1.8s infinite ease-in-out;
}

.hero-title {
  font-size: clamp(2.2rem, 3.8vw, 2.85rem);
  line-height: 1.25;
  color: var(--text-coffee);
  margin-bottom: 18px;
  font-weight: 900;
}

.hero-title span {
  background: linear-gradient(120deg, #FF4586 0%, #FF72A1 45%, var(--primary-orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-intro {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-coffee-light);
  margin-bottom: 28px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.hero-network-capsule {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 94, 151, 0.22);
  box-shadow: var(--shadow-sm);
  max-width: 460px;
}

.capsule-stat {
  display: flex;
  flex-direction: column;
}

.capsule-label {
  font-size: 0.72rem;
  color: var(--text-coffee-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.capsule-value {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-coffee);
}

.capsule-divider {
  width: 1px;
  height: 24px;
  background: rgba(81, 69, 63, 0.12);
}

/* Hero Right: 46% Dynamic Stage */
.hero-visual-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.anime-frame-card {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 35px rgba(255, 94, 151, 0.22), 0 0 15px rgba(242, 154, 91, 0.15);
  border: 3.5px solid #FFFFFF;
  background: #FFFDF8;
  transform: rotate(-0.5deg);
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.anime-frame-card:hover {
  transform: rotate(0deg) translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 45px rgba(255, 94, 151, 0.42);
  border-color: #FFFFFF;
}

.anime-frame-card img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  object-position: center;
  filter: contrast(102%) saturate(106%);
  transition: transform 0.5s ease;
}

.anime-frame-card:hover img {
  transform: scale(1.03);
}

.anime-caption-pill {
  position: absolute;
  bottom: 14px;
  left: 14px;
  right: 14px;
  background: rgba(255, 252, 248, 0.94);
  backdrop-filter: blur(10px);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 94, 151, 0.28);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-coffee);
  box-shadow: 0 4px 12px rgba(74, 62, 57, 0.08);
}

.floating-badge {
  position: absolute;
  background: #FFFFFF;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md), 0 0 16px rgba(255, 94, 151, 0.12);
  border: 1px solid rgba(255, 94, 151, 0.25);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-coffee);
  animation: float 4s ease-in-out infinite;
  z-index: 2;
}

.badge-top-right {
  top: -12px;
  right: -10px;
  animation-delay: 0s;
}

.badge-bottom-left {
  bottom: -16px;
  left: -12px;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ===================================================================
   4. Metrics Strip (核心服务实测指标走廊)
   =================================================================== */
.metrics-strip {
  padding: 40px 0 60px;
}

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

.metric-card {
  background: var(--surface-card);
  border: 1px solid var(--surface-card-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all 0.3s ease;
  overflow: hidden;
}

.metric-card:hover {
  transform: translateY(-4px);
  background: var(--surface-card-hover);
  border-color: var(--accent-pink);
  box-shadow: var(--shadow-md), 0 0 20px rgba(255, 94, 151, 0.14);
}

.metric-num {
  font-family: var(--font-family-mono);
  font-size: 1.85rem;
  font-weight: 900;
  color: rgba(255, 94, 151, 0.4);
  line-height: 1;
  margin-bottom: 12px;
  transition: color 0.3s ease;
}

.metric-card:hover .metric-num {
  color: var(--accent-pink);
}

.metric-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-coffee);
  margin-bottom: 8px;
}

.metric-desc {
  font-size: 0.86rem;
  color: var(--text-coffee-light);
  line-height: 1.55;
}

/* ===================================================================
   5. Brand Story Showcase (品牌故事与探索卡片 - Dragon Guardian Fantasy)
   =================================================================== */
.brand-story-section {
  padding: 70px 0;
  background: linear-gradient(180deg, rgba(255, 249, 244, 0) 0%, rgba(255, 94, 151, 0.08) 50%, rgba(255, 249, 244, 0) 100%);
  position: relative;
}

.story-grid {
  display: grid;
  grid-template-columns: 44% 56%;
  gap: 40px;
  align-items: center;
}

.story-badge-card {
  background: #FFFDF8;
  border-radius: var(--radius-lg);
  padding: 16px;
  border: 2px solid rgba(255, 94, 151, 0.28);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(255, 94, 151, 0.18);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all 0.35s ease;
}

.story-badge-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-pink);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(255, 94, 151, 0.32);
}

.story-badge-img {
  width: 100%;
  height: 380px;
  margin: 0 auto 14px;
  border-radius: var(--radius-md);
  border: 2px solid #FFFFFF;
  box-shadow: var(--shadow-sm);
  object-fit: cover;
  object-position: center;
  display: block;
}

.story-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 4px 6px;
}

.story-code {
  font-family: var(--font-family-mono);
  font-size: 0.76rem;
  font-weight: 800;
  color: #E84580;
  background: rgba(255, 94, 151, 0.12);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  display: inline-block;
  border: 1px solid rgba(255, 94, 151, 0.25);
}

.story-stage-label {
  font-size: 0.82rem;
  color: var(--text-coffee);
  font-weight: 700;
}

.story-content {
  padding-left: 10px;
}

.story-content p {
  margin-bottom: 16px;
  font-size: 0.98rem;
  line-height: 1.8;
}

.story-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 800;
  color: var(--primary-orange);
  font-size: 0.95rem;
  margin-top: 8px;
}

.story-link:hover {
  gap: 10px;
  color: var(--primary-orange-hover);
}

/* ===================================================================
   6. Features Modules (核心技术能力矩阵)
   =================================================================== */
.features-section {
  padding: 60px 0;
}

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

.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--surface-card-border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-orange);
  box-shadow: var(--shadow-lg);
  background: var(--surface-white);
}

.feature-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.feature-code {
  font-family: var(--font-family-mono);
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--primary-orange);
  background: rgba(242, 154, 91, 0.12);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.feature-glow-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(246, 212, 119, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-orange);
  font-size: 1.1rem;
  transition: all 0.3s ease;
}

.feature-card:hover .feature-glow-icon {
  background: var(--primary-orange);
  color: #FFFFFF;
  transform: rotate(15deg);
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--text-coffee);
}

.feature-desc {
  font-size: 0.92rem;
  line-height: 1.68;
  color: var(--text-coffee-light);
  margin-bottom: 20px;
  flex-grow: 1;
}

.feature-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary-orange);
}

/* ===================================================================
   7. Pricing Deck (阶梯套餐卡片与主推推荐舱)
   =================================================================== */
.pricing-section {
  padding: 70px 0;
  background: linear-gradient(180deg, rgba(255, 248, 232, 0) 0%, rgba(145, 189, 212, 0.12) 50%, rgba(255, 248, 232, 0) 100%);
}

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

.pricing-card {
  background: var(--surface-card);
  border: 1.5px solid var(--surface-card-border);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* Recommended Highlight Card */
.pricing-card.recommended {
  transform: scale(1.03);
  background: #FFFDFC;
  border: 2px solid var(--accent-pink);
  box-shadow: var(--shadow-lg), 0 0 35px rgba(255, 94, 151, 0.28);
  z-index: 2;
}

.pricing-card.recommended:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg), 0 0 45px rgba(255, 94, 151, 0.42);
}

.recommend-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-sakura-sunset);
  color: #FFFFFF;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 5px 20px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 14px rgba(255, 94, 151, 0.42);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.plan-code {
  font-family: var(--font-family-mono);
  font-size: 0.8rem;
  font-weight: 800;
  color: #E84580;
  margin-bottom: 8px;
}

.pricing-card.recommended .plan-code {
  color: var(--accent-pink);
}

.pricing-card.recommended .price-currency {
  color: var(--accent-pink);
}

.plan-name {
  font-size: 1.35rem;
  color: var(--text-coffee);
  margin-bottom: 6px;
}

.plan-subtitle {
  font-size: 0.85rem;
  color: var(--text-coffee-muted);
  margin-bottom: 20px;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px dashed rgba(81, 69, 63, 0.15);
}

.price-currency {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary-orange);
}

.price-num {
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--text-coffee);
  line-height: 1;
}

.price-period {
  font-size: 0.85rem;
  color: var(--text-coffee-muted);
  font-weight: 600;
}

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

.plan-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-coffee);
}

.feature-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(145, 181, 155, 0.2);
  color: #3B7249;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 900;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===================================================================
   8. Downloads Stage (全平台客户端下载舞台)
   =================================================================== */
.downloads-section {
  padding: 60px 0;
}

.downloads-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.download-card {
  background: var(--surface-card);
  border: 1px solid var(--surface-card-border);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  cursor: pointer;
}

.download-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary-orange);
  background: var(--surface-white);
  box-shadow: var(--shadow-md);
}

.download-card.full-width {
  grid-column: 1 / -1;
}

.download-card-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.platform-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(242, 154, 91, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-orange);
  flex-shrink: 0;
}

.platform-icon-wrap svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

.download-info h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.download-info p {
  font-size: 0.82rem;
  color: var(--text-coffee-muted);
}

.download-arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(81, 69, 63, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-coffee);
  transition: all 0.25s ease;
  flex-shrink: 0;
}

.download-card:hover .download-arrow {
  background: var(--primary-orange);
  color: #FFFFFF;
  transform: translateX(4px);
}

/* ===================================================================
   9. Final CTA (最终召唤行动板块)
   =================================================================== */
.final-cta-section {
  padding: 80px 24px;
  margin: 40px auto 70px;
  width: var(--container-width);
  background: linear-gradient(135deg, #FFF0DC 0%, #FFE5D2 50%, #F5F1E9 100%);
  border-radius: var(--radius-lg);
  border: 2px solid rgba(242, 154, 91, 0.3);
  box-shadow: var(--shadow-lg), 0 0 35px rgba(246, 212, 119, 0.25);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(246, 212, 119, 0.2) 0%, transparent 60%);
  pointer-events: none;
  animation: rotate-slow 25s linear infinite;
}

@keyframes rotate-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
}

.cta-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--primary-orange);
  background: #FFFFFF;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  margin-bottom: 18px;
}

.cta-title {
  font-size: clamp(2rem, 3.4vw, 2.6rem);
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 1.05rem;
  color: var(--text-coffee-light);
  margin-bottom: 32px;
  line-height: 1.7;
}

/* ===================================================================
   10. Site Footer (全功能企业级标准页脚)
   =================================================================== */
.site-footer {
  background: #2D2521;
  color: #EDE4DC;
  padding: 60px 0 32px;
  margin-top: 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(237, 228, 220, 0.12);
}

.footer-brand-col p {
  color: #C2B5AC;
  font-size: 0.9rem;
  margin-top: 14px;
  max-width: 320px;
  line-height: 1.7;
}

.footer-heading {
  font-size: 0.95rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}

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

.footer-links a {
  color: #C2B5AC;
  font-size: 0.88rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--primary-orange);
}

.footer-bottom {
  padding-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 0.82rem;
  color: #A3958B;
}

.footer-disclaimer {
  line-height: 1.6;
}

.footer-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(237, 228, 220, 0.06);
}

.support-email {
  color: var(--highlight-honey);
  font-weight: 600;
}

/* ===================================================================
   Inner Page Template Standard (radical-inner)
   =================================================================== */
.radical-inner-hero {
  padding: 56px 0 48px;
  text-align: center;
  background: linear-gradient(180deg, rgba(246, 212, 119, 0.18) 0%, rgba(246, 184, 166, 0.12) 60%, rgba(255, 248, 232, 0) 100%);
  border-bottom: 1px solid rgba(242, 154, 91, 0.15);
  position: relative;
  overflow: hidden;
}

.inner-hero-kicker {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--primary-orange);
  background: #FFFFFF;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}

.inner-hero-title {
  font-size: clamp(2rem, 3.5vw, 2.7rem);
  margin-bottom: 14px;
  color: var(--text-coffee);
}

.inner-hero-desc {
  font-size: 1.05rem;
  color: var(--text-coffee-light);
  max-width: 660px;
  margin: 0 auto;
}

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

/* Article / Long Text Standard */
.article-container {
  max-width: 820px;
  margin: 0 auto;
  background: #FFFDF9;
  border: 1px solid var(--surface-card-border);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  box-shadow: var(--shadow-sm);
}

.article-content h2 {
  font-size: 1.55rem;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid rgba(242, 154, 91, 0.2);
  color: var(--text-coffee);
}

.article-content h3 {
  font-size: 1.25rem;
  margin: 24px 0 12px;
  color: var(--text-coffee);
}

.article-content p {
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--text-coffee);
  margin-bottom: 20px;
}

.article-content ul, .article-content ol {
  margin: 16px 0 24px 24px;
  color: var(--text-coffee-light);
  font-size: 0.98rem;
  line-height: 1.8;
}

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

.article-content blockquote {
  background: #FDF4E7;
  border-left: 4px solid var(--primary-orange);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  font-size: 0.96rem;
  color: var(--text-coffee);
}

/* FAQ Accordion Component */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

.faq-item {
  background: var(--surface-card);
  border: 1px solid var(--surface-card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.25s ease;
}

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

.faq-question {
  padding: 18px 22px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-coffee);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-icon {
  font-size: 1.1rem;
  color: var(--primary-orange);
  transition: transform 0.3s ease;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  background: #FFFFFF;
}

.faq-answer-inner {
  padding: 0 22px 20px;
  font-size: 0.94rem;
  color: var(--text-coffee-light);
  line-height: 1.75;
}

.faq-item.active .faq-answer {
  max-height: 600px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

/* Visual Image Callout Box (Used across subpages with zero text interference) */
.visual-callout-card {
  margin: 36px 0;
  background: #FFFDF9;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(255, 94, 151, 0.25);
  box-shadow: var(--shadow-md), 0 0 24px rgba(255, 94, 151, 0.12);
  overflow: hidden;
  transition: all 0.3s ease;
}

.visual-callout-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-pink);
  box-shadow: var(--shadow-lg), 0 0 32px rgba(255, 94, 151, 0.25);
}

.visual-callout-card img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  object-position: center;
  transition: transform 0.5s ease;
}

.visual-callout-card:hover img {
  transform: scale(1.02);
}

.visual-callout-info {
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #FFF9FC;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-coffee);
  border-top: 1px solid rgba(255, 94, 151, 0.18);
}

/* ===================================================================
   Anime Showcase Section (帅气动漫双核视觉展台 - Samurai & Cyber Backbone)
   =================================================================== */
.anime-showcase-section {
  padding: 70px 0;
  position: relative;
  background: linear-gradient(180deg, rgba(255, 249, 244, 0) 0%, rgba(255, 94, 151, 0.08) 50%, rgba(255, 249, 244, 0) 100%);
  overflow: hidden;
}

.anime-split-grid {
  display: grid;
  grid-template-columns: 46% 54%;
  gap: 36px;
  align-items: center;
}

.anime-visual-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 36px rgba(255, 94, 151, 0.28);
  border: 3px solid #FFFFFF;
  background: #14141E;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.anime-visual-frame:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 48px rgba(255, 94, 151, 0.45);
  border-color: rgba(255, 94, 151, 0.6);
}

.anime-visual-frame img {
  width: 100%;
  height: 440px;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.6s ease;
  filter: contrast(104%) saturate(108%);
}

.anime-visual-frame:hover img {
  transform: scale(1.03);
}

/* Corner HUD Brackets */
.anime-hud-bracket {
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--accent-pink);
  border-style: solid;
  pointer-events: none;
  z-index: 3;
}
.bracket-tl { top: 12px; left: 12px; border-width: 2.5px 0 0 2.5px; }
.bracket-tr { top: 12px; right: 12px; border-width: 2.5px 2.5px 0 0; }
.bracket-bl { bottom: 12px; left: 12px; border-width: 0 0 2.5px 2.5px; }
.bracket-br { bottom: 12px; right: 12px; border-width: 0 2.5px 2.5px 0; }

.anime-status-ribbon {
  position: absolute;
  top: 18px;
  left: 18px;
  background: rgba(20, 20, 30, 0.88);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  border: 1px solid var(--accent-pink);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.04em;
  z-index: 3;
  box-shadow: 0 4px 14px rgba(255, 94, 151, 0.35);
}

.anime-status-ribbon .glow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-pink);
  box-shadow: 0 0 8px var(--accent-pink);
  animation: pulse-dot 1.5s infinite;
}

.anime-frame-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(15, 15, 25, 0.92) 100%);
  padding: 26px 18px 14px;
  color: #FFFFFF;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  font-size: 0.78rem;
  font-weight: 700;
  z-index: 2;
}

.anime-content-col {
  display: flex;
  flex-direction: column;
}

.anime-tech-card-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

.anime-tech-card {
  background: var(--surface-card);
  border: 1.5px solid rgba(255, 94, 151, 0.18);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
}

.anime-tech-card:hover {
  transform: translateX(4px);
  border-color: var(--accent-pink);
  background: #FFFFFF;
  box-shadow: var(--shadow-md), 0 0 20px rgba(255, 94, 151, 0.16);
}

.anime-tech-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.anime-tech-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-coffee);
  display: flex;
  align-items: center;
  gap: 8px;
}

.anime-tech-badge {
  font-family: var(--font-family-mono);
  font-size: 0.72rem;
  font-weight: 800;
  color: #E84580;
  background: rgba(255, 94, 151, 0.12);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 94, 151, 0.28);
}

.anime-tech-desc {
  font-size: 0.9rem;
  color: var(--text-coffee-light);
  line-height: 1.62;
}

/* Japanese Anime Subtitle Accent */
.anime-jp-sub {
  font-size: 0.72rem;
  font-weight: 700;
  color: #E84580;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-left: 6px;
}

/* Related Articles Grid */
.related-articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.related-card {
  background: var(--surface-card);
  border: 1px solid var(--surface-card-border);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

.related-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-pink);
  box-shadow: var(--shadow-md), 0 0 16px rgba(255, 94, 151, 0.14);
}

.related-kicker {
  font-size: 0.72rem;
  font-weight: 800;
  color: #E84580;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.related-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-coffee);
  margin-bottom: 8px;
  line-height: 1.45;
  flex-grow: 1;
}

.related-more {
  font-size: 0.82rem;
  font-weight: 700;
  color: #E84580;
  margin-top: 10px;
}

/* ===================================================================
   Responsive Breakpoints
   Desktop: >= 1040px
   Tablet: 768px ~ 1039px
   Mobile: <= 767px
   =================================================================== */
@media (max-width: 1039px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-text-island {
    padding-right: 0;
  }

  .anime-split-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .story-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-card.recommended {
    transform: none;
    grid-column: 1 / -1;
  }

  .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  body {
    padding: 0;
  }

  .container {
    width: 100%;
    padding: 0 16px;
  }

  .site-notice-bar {
    font-size: 0.76rem;
  }

  .navbar-menu,
  .navbar-actions .btn {
    display: none;
  }

  .collection-menu {
    display: flex;
  }

  .hero-title {
    font-size: 1.85rem;
  }

  .hero-intro {
    font-size: 0.95rem;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-network-capsule {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .capsule-divider {
    display: none;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card.recommended {
    grid-column: auto;
  }

  .downloads-grid {
    grid-template-columns: 1fr;
  }

  .related-articles-grid {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-meta-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .article-container {
    padding: 24px 18px;
  }

  .anime-visual-frame img {
    height: 300px;
  }

  .story-badge-img {
    height: 260px;
  }
}