/etc/profile.d/lang.sh: line 19: warning: setlocale: LC_CTYPE: cannot change locale (C.UTF-8)
/* ============================================================
   2buy.biz v3.0 — 京鲜啤酒 · 老炮拉格 商业级品牌官网
   设计代币 + 组件库 + 响应式 + 动画
   ============================================================ */

/* ========== DESIGN TOKENS ========== */
:root {
  /* Core Brand */
  --brand-army-green: #2D5016;
  --brand-army-dark: #1A3A0A;
  --brand-army-darker: #0D1F04;
  --brand-bronze-gold: #C4A962;
  --brand-gold-light: #D4B45A;
  --brand-gold-pale: #E8D5A3;
  --brand-red-copper: #A52A2A;

  /* Neutrals */
  --neutral-darkest: #0A0A0A;
  --neutral-darker: #1A1A1A;
  --neutral-dark: #2A2A2A;
  --neutral-mid: #4A4A4A;
  --neutral-gray: #888888;
  --neutral-light-gray: #B0B0B0;
  --neutral-border: #E0DDD6;
  --neutral-cream: #F5F0E8;
  --neutral-cream-light: #FAF7F0;
  --neutral-white: #FFFFFF;

  /* Semantic Text */
  --text-primary: #1A1A1A;
  --text-secondary: #666666;
  --text-muted: #999999;
  --text-on-dark-primary: #E8E6E3;
  --text-on-dark-secondary: rgba(255,255,255,0.60);
  --text-on-dark-muted: rgba(255,255,255,0.35);

  /* Alpha Variants */
  --gold-alpha-10: rgba(196,169,98,0.10);
  --gold-alpha-15: rgba(196,169,98,0.15);
  --gold-alpha-20: rgba(196,169,98,0.20);
  --gold-alpha-30: rgba(196,169,98,0.30);
  --dark-alpha-04: rgba(255,255,255,0.04);
  --dark-alpha-06: rgba(255,255,255,0.06);
  --dark-alpha-08: rgba(255,255,255,0.08);
  --dark-alpha-10: rgba(255,255,255,0.10);
  --dark-alpha-60: rgba(26,26,26,0.60);
  --dark-alpha-85: rgba(26,26,26,0.85);
  --dark-alpha-92: rgba(26,26,26,0.92);
  --dark-alpha-98: rgba(26,26,26,0.98);

  /* Gradients */
  --gradient-hero: radial-gradient(ellipse at 20% 50%, rgba(196,169,98,0.10) 0%, transparent 60%),
                    radial-gradient(ellipse at 80% 20%, rgba(45,80,22,0.40) 0%, transparent 50%),
                    linear-gradient(160deg, #0A0A0A 0%, #1A3A0A 40%, #1A1A1A 100%);
  --gradient-divider: linear-gradient(90deg, transparent, var(--brand-bronze-gold), transparent);
  --gradient-scene-overlay: linear-gradient(135deg, rgba(26,26,26,0.85), rgba(45,80,22,0.5));
  --gradient-dark-to-light: linear-gradient(180deg, var(--neutral-darker) 0%, var(--neutral-cream-light) 100%);

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.16);
  --shadow-gold: 0 8px 24px rgba(196,169,98,0.3);
  --shadow-gold-sm: 0 4px 12px rgba(196,169,98,0.2);
  --shadow-dark: 0 20px 60px rgba(0,0,0,0.3);

  /* Transitions */
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-image: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 0.875rem;
  --text-md: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* Font Stacks */
  --font-heading-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-heading-en: "Inter", "SF Pro Display", "Helvetica Neue", "Arial", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Consolas", monospace;

  /* Layout */
  --container-narrow: 800px;
  --container-standard: 1100px;
  --container-wide: 1200px;
  --container-hero: 1440px;

  /* Spacing (4px baseline) */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-7: 28px; --space-8: 32px;
  --space-10: 40px; --space-12: 48px; --space-14: 56px; --space-16: 64px;
  --space-20: 80px; --space-25: 100px;
}

/* ========== RESET ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: var(--text-md);
  line-height: 1.8;
  color: var(--text-primary);
  background: var(--neutral-cream-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading-cn); line-height: 1.3; }

/* ========== UTILITY ========== */
.container { max-width: var(--container-wide); margin: 0 auto; padding: 0 var(--space-5); }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-5); }
.section-padding { padding: var(--space-20) 0; }
.section-title { font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 800; color: var(--text-primary); margin-bottom: var(--space-3); }
.section-subtitle { font-size: var(--text-md); color: var(--text-secondary); margin-bottom: var(--space-10); max-width: 600px; }
.text-center { text-align: center; }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }
.mb-0 { margin-bottom: 0; }

/* ========== NAVIGATION ========== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-4) var(--space-10);
  background: var(--dark-alpha-92);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--dark-alpha-06);
  transition: background var(--transition-base);
}
.nav.scrolled { background: var(--dark-alpha-98); }
.nav__logo { display: flex; align-items: center; gap: var(--space-3); font-weight: 700; color: var(--neutral-white); font-size: var(--text-lg); }
.nav__logo-img { height: 40px; width: auto; filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3)); }
.nav__links { display: flex; align-items: center; gap: var(--space-1); }
.nav__links a {
  color: var(--text-on-dark-secondary); padding: var(--space-2) 18px;
  font-size: var(--text-base); font-weight: 500; letter-spacing: 0.5px;
  border-radius: var(--radius-sm); transition: all var(--transition-base);
}
.nav__links a:hover, .nav__links a.active { color: var(--neutral-white); background: var(--dark-alpha-08); }
.nav__links a.active { color: var(--brand-bronze-gold); }
.nav__cta { background: var(--brand-bronze-gold) !important; color: var(--neutral-darker) !important; font-weight: 700 !important; padding: var(--space-2) 22px !important; }
.nav__cta:hover { background: var(--brand-gold-light) !important; }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: var(--space-2); z-index: 101; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--neutral-white); border-radius: 2px; transition: all 0.3s ease; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: 14px 36px; font-family: var(--font-heading-cn); font-size: 15px; font-weight: 700;
  letter-spacing: 0.5px; border-radius: var(--radius-sm); border: none; cursor: pointer;
  text-decoration: none; transition: all var(--transition-base); white-space: nowrap;
}
.btn-primary { background: var(--brand-bronze-gold); color: var(--neutral-darker); }
.btn-primary:hover { background: var(--brand-gold-light); transform: translateY(-2px); box-shadow: var(--shadow-gold); }
.btn-outline { background: transparent; color: var(--brand-bronze-gold); border: 2px solid var(--brand-bronze-gold); }
.btn-outline:hover { background: var(--brand-bronze-gold); color: var(--neutral-darker); transform: translateY(-2px); box-shadow: var(--shadow-gold-sm); }
.btn-white { background: var(--neutral-white); color: var(--neutral-darker); }
.btn-white:hover { background: var(--neutral-cream); transform: translateY(-2px); }
.btn-cta { padding: 18px 48px; font-size: 18px; letter-spacing: 1px; background: var(--brand-bronze-gold); color: var(--neutral-darker); border-radius: var(--radius-md); }
.btn-cta:hover { transform: translateY(-3px); box-shadow: var(--shadow-gold); }
.btn-sm { padding: 8px 20px; font-size: 13px; letter-spacing: 0.3px; }

/* ========== TAG ========== */
.tag {
  display: inline-block; padding: 4px 14px; background: var(--gold-alpha-15);
  color: var(--brand-bronze-gold); border-radius: var(--radius-full);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.3px; white-space: nowrap;
}
.tag-green { background: rgba(45,80,22,0.15); color: var(--brand-army-green); }
.tag-red { background: rgba(165,42,42,0.12); color: var(--brand-red-copper); }

/* ========== CARD ========== */
.card {
  background: var(--neutral-white); border: 1px solid var(--neutral-border);
  border-radius: var(--radius-lg); padding: var(--space-8) var(--space-7);
  transition: all var(--transition-base);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--brand-bronze-gold); }
.card-dark {
  background: var(--dark-alpha-04); border: 1px solid var(--dark-alpha-08);
  border-radius: var(--radius-lg); padding: var(--space-8) var(--space-7);
  color: var(--text-on-dark-primary); transition: all var(--transition-base);
}
.card-dark:hover { border-color: var(--brand-bronze-gold); box-shadow: var(--shadow-lg); }
.card-accent-left { border-left: 4px solid var(--brand-bronze-gold); }
.card-accent-top { position: relative; overflow: hidden; }
.card-accent-top::after { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--brand-army-green), var(--brand-bronze-gold)); opacity: 0; transition: opacity var(--transition-base); }
.card-accent-top:hover::after { opacity: 1; }

/* ========== PRODUCT CARD ========== */
.product-card {
  display: flex; flex-direction: column; background: var(--dark-alpha-04);
  border: 1px solid var(--dark-alpha-08); border-radius: var(--radius-lg);
  overflow: hidden; transition: all var(--transition-base); cursor: pointer; position: relative;
}
.product-card:hover { transform: translateY(-6px); border-color: var(--brand-bronze-gold); box-shadow: var(--shadow-lg); }
.product-card:hover .product-card__image img { transform: scale(1.08); }
.product-card:hover .product-card__overlay { opacity: 1; }
.product-card__image { width: 100%; aspect-ratio: 4/3; overflow: hidden; background: var(--neutral-dark); }
.product-card__image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition-image); }
.product-card__body { padding: var(--space-6) var(--space-5) var(--space-7); }
.product-card__body h3 { font-size: var(--text-xl); font-weight: 700; color: var(--neutral-white); margin-bottom: var(--space-2); }
.product-card__body .subtitle { font-size: var(--text-sm); color: var(--text-on-dark-secondary); margin-bottom: var(--space-3); }
.product-card__tags { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.product-card__overlay {
  position: absolute; bottom: 0; left: 0; right: 0; padding: 12px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7)); color: var(--brand-bronze-gold);
  font-size: var(--text-sm); font-weight: 600; letter-spacing: 1px; text-align: center;
  opacity: 0; transition: opacity var(--transition-base); pointer-events: none;
}

/* ========== SPEC BADGE ========== */
.spec-badge {
  display: inline-flex; align-items: center; gap: 4px; padding: 6px 16px;
  background: var(--neutral-dark); color: var(--brand-bronze-gold);
  border-radius: var(--radius-full); font-size: var(--text-base); font-weight: 700;
}
.spec-badge-group { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ========== DIVIDERS ========== */
.divider-gradient { height: 1px; background: var(--gradient-divider); opacity: 0.3; margin: 0; }
.divider-gold { height: 1px; background: var(--brand-bronze-gold); opacity: 0.2; }
.divider-dark { height: 1px; background: var(--dark-alpha-08); }

/* === SCENE DIVIDER === */
.scene-divider { position: relative; height: 420px; overflow: hidden; background: var(--neutral-dark); }
.scene-divider img { width: 100%; height: 100%; object-fit: cover; opacity: 0.45; transition: var(--transition-image); }
.scene-divider:hover img { transform: scale(1.08); }
.scene-divider__overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; flex-direction: column; text-align: center; padding: var(--space-10); background: var(--gradient-scene-overlay); }
.scene-divider__overlay h2 { font-size: clamp(1.75rem, 4vw, 2.625rem); font-weight: 800; color: var(--neutral-white); margin-bottom: var(--space-4); letter-spacing: 2px; }
.scene-divider__overlay p { color: var(--text-on-dark-secondary); margin-bottom: var(--space-6); font-size: var(--text-lg); }

/* ========== HERO ========== */
.hero {
  min-height: 100vh; display: flex; flex-direction: column; position: relative; overflow: hidden;
  background: var(--neutral-darkest);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: var(--gradient-hero); z-index: 0;
}
.hero-pattern {
  position: absolute; inset: 0; opacity: 0.04; z-index: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 80px, rgba(196,169,98,0.3) 80px, rgba(196,169,98,0.3) 81px),
    repeating-linear-gradient(90deg, transparent, transparent 80px, rgba(196,169,98,0.3) 80px, rgba(196,169,98,0.3) 81px);
}
.hero__content {
  flex: 1; display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center; padding: 120px 20px 60px; position: relative; z-index: 1;
}
.hero__logo { margin-bottom: var(--space-8); }
.hero__logo-img { height: clamp(100px, 15vw, 180px); width: auto; filter: drop-shadow(0 8px 24px rgba(0,0,0,0.5)); animation: fadeInDown 0.8s ease-out; }
.hero__title { font-size: clamp(2.5rem, 8vw, 5rem); font-weight: 900; color: var(--neutral-white); letter-spacing: 6px; margin-bottom: var(--space-3); animation: fadeInUp 0.8s ease-out 0.2s both; }
.hero__subtitle { font-size: clamp(0.875rem, 2vw, 1.125rem); color: var(--brand-bronze-gold); letter-spacing: 8px; margin-bottom: var(--space-5); font-family: var(--font-heading-en); animation: fadeInUp 0.8s ease-out 0.4s both; }
.hero__desc { font-size: clamp(0.875rem, 1.5vw, 1rem); color: var(--text-on-dark-secondary); max-width: 600px; line-height: 1.8; margin-bottom: var(--space-8); animation: fadeInUp 0.8s ease-out 0.6s both; }
.hero__actions { display: flex; gap: var(--space-4); flex-wrap: wrap; justify-content: center; animation: fadeInUp 0.8s ease-out 0.8s both; }
.hero__scene { position: relative; z-index: 1; margin-top: -60px; padding: 0 20px 60px; display: flex; justify-content: center; }
.hero__scene img { max-width: 900px; width: 100%; height: auto; border-radius: var(--radius-lg); box-shadow: var(--shadow-dark); animation: fadeInUp 1s ease-out 0.8s both; }

/* ========== BRAND PILLARS ========== */
.pillars-section { padding: var(--space-25) var(--space-10); background: var(--neutral-cream-light); }
.pillars-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8);
  max-width: var(--container-wide); margin: 0 auto;
}
.pillar {
  background: var(--neutral-white); border: 1px solid var(--neutral-border);
  border-radius: var(--radius-lg); padding: var(--space-10) var(--space-7);
  text-align: center; transition: all var(--transition-base);
}
.pillar:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--brand-bronze-gold); }
.pillar__icon { width: 64px; height: 64px; margin: 0 auto var(--space-5); background: var(--brand-army-green); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--brand-bronze-gold); font-size: 28px; font-weight: 900; }
.pillar h3 { font-size: var(--text-xl); font-weight: 800; margin-bottom: var(--space-3); color: var(--text-primary); }
.pillar p { font-size: var(--text-base); color: var(--text-secondary); line-height: 1.7; }
.pillar__link { display: inline-block; margin-top: var(--space-4); color: var(--brand-bronze-gold); font-weight: 600; font-size: var(--text-sm); letter-spacing: 1px; transition: gap var(--transition-base); }
.pillar__link:hover { gap: 4px; }

/* ========== PRODUCTS SECTION (Dark) ========== */
.products-section {
  padding: var(--space-25) var(--space-10); background: var(--neutral-darker);
  position: relative;
}
.products-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: var(--gradient-divider); opacity: 0.3; }
.products-section .section-title { color: var(--neutral-white); }
.products-section .section-subtitle { color: var(--text-on-dark-secondary); }
.products-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6); max-width: var(--container-wide); margin: 0 auto var(--space-10);
}
.products-section .text-center .btn { margin-top: var(--space-4); }

/* ========== DATA TRUST SECTION ========== */
.data-trust-section { padding: var(--space-20) var(--space-10); background: var(--neutral-cream-light); text-align: center; }
.data-trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-8); max-width: var(--container-wide); margin: 0 auto; }
.data-trust-item { padding: var(--space-8) var(--space-6); background: var(--neutral-white); border-radius: var(--radius-lg); border: 1px solid var(--neutral-border); transition: all var(--transition-base); }
.data-trust-item:hover { box-shadow: var(--shadow-md); border-color: var(--brand-bronze-gold); transform: translateY(-4px); }
.data-trust-value { font-size: clamp(36px, 5vw, 56px); font-weight: 900; color: var(--brand-army-green); line-height: 1; margin-bottom: var(--space-2); }
.data-trust-value .unit { font-size: 0.4em; font-weight: 600; color: var(--brand-bronze-gold); }
.data-trust-label { font-size: var(--text-base); color: var(--text-secondary); font-weight: 500; }

/* ========== KNOWLEDGE SECTION ========== */
.knowledge-section { padding: var(--space-25) var(--space-10); max-width: var(--container-wide); margin: 0 auto; }
.knowledge-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: var(--space-6); }
.knowledge-card { background: var(--neutral-white); border: 1px solid var(--neutral-border); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition-base); }
.knowledge-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--brand-bronze-gold); }
.knowledge-card:hover .knowledge-card__image img { transform: scale(1.05); }
.knowledge-card__image { width: 100%; height: 180px; overflow: hidden; background: var(--neutral-dark); }
.knowledge-card__image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition-image); }
.knowledge-card__body { padding: var(--space-6); }
.knowledge-card__body h3 { font-size: var(--text-xl); font-weight: 700; margin-bottom: var(--space-2); }
.knowledge-card__body p { font-size: var(--text-base); color: var(--text-secondary); line-height: 1.7; margin-bottom: var(--space-4); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.knowledge-card__tags { margin-bottom: var(--space-3); display: flex; gap: var(--space-2); flex-wrap: wrap; }
.knowledge-card__link { color: var(--brand-bronze-gold); font-weight: 600; font-size: var(--text-sm); letter-spacing: 1px; }

/* ========== CHANNEL SECTION ========== */
.channel-section { padding: var(--space-25) var(--space-10); background: var(--neutral-darkest); }
.channel-section .section-title { color: var(--neutral-white); }
.channel-section .section-subtitle { color: var(--text-on-dark-secondary); }
.channel-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--space-6); max-width: var(--container-wide); margin: 0 auto var(--space-10); }
.channel-card { background: var(--dark-alpha-04); border: 1px solid var(--dark-alpha-08); border-radius: var(--radius-lg); padding: var(--space-8); color: var(--text-on-dark-primary); transition: all var(--transition-base); }
.channel-card:hover { border-color: var(--brand-bronze-gold); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.channel-card h3 { color: var(--brand-bronze-gold); font-size: var(--text-xl); margin-bottom: var(--space-4); display: flex; align-items: center; gap: var(--space-3); }
.channel-card ul { margin-bottom: var(--space-5); }
.channel-card ul li { font-size: var(--text-base); color: var(--text-on-dark-secondary); padding: var(--space-1) 0; position: relative; padding-left: var(--space-5); }
.channel-card ul li::before { content: '✓'; position: absolute; left: 0; color: var(--brand-bronze-gold); font-weight: 700; }

/* ========== FAQ SECTION ========== */
.faq-section { padding: var(--space-25) var(--space-10); background: var(--neutral-cream-light); }
.faq-list { max-width: var(--container-standard); margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-4); }
.faq-item { background: var(--neutral-white); border: 1px solid var(--neutral-border); border-radius: var(--radius-md); overflow: hidden; transition: all var(--transition-base); }
.faq-item:hover { border-color: var(--brand-bronze-gold); }
.faq-item.active { border-color: var(--brand-bronze-gold); box-shadow: var(--shadow-sm); }
.faq-question { padding: var(--space-5) var(--space-6); font-weight: 700; font-size: var(--text-md); cursor: pointer; display: flex; justify-content: space-between; align-items: center; user-select: none; }
.faq-question::after { content: '+'; font-size: 20px; color: var(--brand-bronze-gold); transition: transform var(--transition-base); font-weight: 300; }
.faq-item.active .faq-question::after { content: '−'; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; padding: 0 var(--space-6); }
.faq-item.active .faq-answer { max-height: 500px; padding: 0 var(--space-6) var(--space-6); }
.faq-answer p { font-size: var(--text-base); color: var(--text-secondary); line-height: 1.8; }
.faq-answer ul { padding-left: var(--space-5); margin: var(--space-2) 0; }
.faq-answer ul li { list-style: disc; margin-bottom: var(--space-1); font-size: var(--text-base); color: var(--text-secondary); }

/* ========== FOOTER ========== */
.footer { background: var(--neutral-darkest); color: var(--text-on-dark-secondary); padding: var(--space-20) var(--space-10) 30px; border-top: 1px solid var(--dark-alpha-06); }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-12); max-width: var(--container-wide); margin: 0 auto; }
.footer__brand p { margin-top: var(--space-3); font-size: var(--text-sm); line-height: 1.7; }
.footer__col h4 { color: var(--brand-bronze-gold); font-size: var(--text-base); font-weight: 700; margin-bottom: var(--space-4); letter-spacing: 1px; }
.footer__col a, .footer__col p { display: block; font-size: var(--text-sm); margin-bottom: var(--space-2); color: var(--text-on-dark-secondary); transition: color var(--transition-base); }
.footer__col a:hover { color: var(--brand-bronze-gold); }
.footer__bottom { max-width: var(--container-wide); margin: var(--space-10) auto 0; padding-top: var(--space-6); border-top: 1px solid var(--dark-alpha-08); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-4); font-size: var(--text-xs); color: var(--text-on-dark-muted); }
.footer__qualifications { display: flex; gap: var(--space-4); align-items: center; }
.footer__qualifications span { padding: 4px 10px; background: var(--dark-alpha-04); border: 1px solid var(--dark-alpha-08); border-radius: var(--radius-xs); font-size: var(--text-xs); }
.hidden-mark { font-size: 8px; color: rgba(196,169,98,0.15); letter-spacing: 4px; pointer-events: none; margin-top: var(--space-4); text-align: right; }

/* ========== PAGE HEADER (Sub-pages) ========== */
.page-header { padding: 140px var(--space-5) var(--space-16); text-align: center; background: var(--neutral-darkest); position: relative; }
.page-header::before { content: ''; position: absolute; inset: 0; background: var(--gradient-hero); }
.page-header__content { position: relative; z-index: 1; }
.page-header h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 900; color: var(--neutral-white); letter-spacing: 3px; margin-bottom: var(--space-3); }
.page-header p { color: var(--text-on-dark-secondary); font-size: var(--text-lg); }
.breadcrumb { display: flex; gap: var(--space-2); justify-content: center; margin-bottom: var(--space-6); font-size: var(--text-sm); color: var(--text-on-dark-muted); position: relative; z-index: 1; }
.breadcrumb a { color: var(--brand-bronze-gold); }
.breadcrumb span { color: var(--text-on-dark-muted); }

/* ========== PRODUCT DETAIL PAGE ========== */
.product-detail { padding: var(--space-16) var(--space-5); background: var(--neutral-cream-light); }
.product-detail__grid { max-width: var(--container-wide); margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: start; }
.product-detail__image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.product-detail__image img { width: 100%; height: auto; }
.product-detail__info h2 { font-size: var(--text-4xl); font-weight: 900; margin-bottom: var(--space-2); }
.product-detail__tagline { color: var(--brand-bronze-gold); font-size: var(--text-lg); font-weight: 600; margin-bottom: var(--space-5); }
.product-detail__desc { font-size: var(--text-md); color: var(--text-secondary); line-height: 1.9; margin-bottom: var(--space-6); }
.product-detail__selling { background: var(--neutral-white); border: 1px solid var(--neutral-border); border-radius: var(--radius-md); padding: var(--space-6); margin-bottom: var(--space-6); }
.product-detail__selling h4 { font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-4); }
.product-detail__selling ul li { padding: var(--space-2) 0 var(--space-2) var(--space-5); position: relative; font-size: var(--text-base); color: var(--text-secondary); border-bottom: 1px solid var(--neutral-border); }
.product-detail__selling ul li:last-child { border-bottom: none; }
.product-detail__selling ul li::before { content: '•'; position: absolute; left: 8px; color: var(--brand-bronze-gold); font-weight: 700; }
.specs-table { width: 100%; border-collapse: collapse; background: var(--neutral-white); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--neutral-border); }
.specs-table th, .specs-table td { padding: var(--space-3) var(--space-5); text-align: left; font-size: var(--text-base); }
.specs-table th { background: var(--neutral-dark); color: var(--brand-bronze-gold); font-weight: 700; font-family: var(--font-mono); width: 35%; }
.specs-table td { color: var(--text-secondary); border-bottom: 1px solid var(--neutral-border); }
.specs-table tr:last-child td { border-bottom: none; }

/* ========== COMPARISON TABLE ========== */
.comparison-section { padding: var(--space-20) var(--space-5); background: var(--neutral-cream-light); }
.comparison-table { max-width: var(--container-wide); margin: 0 auto; overflow-x: auto; }
.comparison-table table { width: 100%; border-collapse: collapse; background: var(--neutral-white); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); }
.comparison-table th { background: var(--neutral-dark); color: var(--brand-bronze-gold); padding: var(--space-4) var(--space-5); text-align: left; font-size: var(--text-sm); font-weight: 700; white-space: nowrap; }
.comparison-table td { padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--neutral-border); font-size: var(--text-base); color: var(--text-secondary); }
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table tr:nth-child(even) td { background: var(--neutral-cream-light); }

/* ========== FRUIT BEER GRID ========== */
.fruit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); max-width: var(--container-wide); margin: var(--space-10) auto 0; }
.fruit-card { background: var(--dark-alpha-04); border: 1px solid var(--dark-alpha-08); border-radius: var(--radius-lg); padding: var(--space-6); text-align: center; color: var(--text-on-dark-primary); transition: all var(--transition-base); }
.fruit-card:hover { border-color: var(--brand-bronze-gold); transform: translateY(-4px); }
.fruit-card__emoji { font-size: 48px; margin-bottom: var(--space-3); }
.fruit-card h4 { font-size: var(--text-lg); font-weight: 700; color: var(--brand-bronze-gold); margin-bottom: var(--space-2); }
.fruit-card p { font-size: var(--text-sm); color: var(--text-on-dark-secondary); }

/* ========== BLOG ARTICLE ========== */
.article { padding: var(--space-16) var(--space-5); background: var(--neutral-cream-light); }
.article__header { text-align: center; margin-bottom: var(--space-10); }
.article__header h1 { font-size: var(--text-4xl); font-weight: 900; margin-bottom: var(--space-4); }
.article__meta { display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; font-size: var(--text-sm); color: var(--text-muted); }
.article__body { max-width: var(--container-narrow); margin: 0 auto; font-size: var(--text-md); line-height: 2; color: var(--text-secondary); }
.article__body h2 { font-size: var(--text-2xl); font-weight: 800; color: var(--text-primary); margin: var(--space-10) 0 var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--neutral-border); }
.article__body h3 { font-size: var(--text-xl); font-weight: 700; color: var(--text-primary); margin: var(--space-8) 0 var(--space-3); }
.article__body p { margin-bottom: var(--space-5); }
.article__body ul { padding-left: var(--space-5); margin-bottom: var(--space-5); }
.article__body ul li { list-style: disc; margin-bottom: var(--space-2); }
.article__body strong { color: var(--brand-bronze-gold); }
.article__footer { max-width: var(--container-narrow); margin: var(--space-12) auto 0; padding-top: var(--space-8); border-top: 1px solid var(--neutral-border); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-4); }

/* ========== STORY PAGE ========== */
.story-section { padding: var(--space-16) var(--space-5); background: var(--neutral-cream-light); }
.story-content { max-width: var(--container-narrow); margin: 0 auto; }
.story-content h2 { font-size: var(--text-3xl); font-weight: 900; color: var(--text-primary); margin: var(--space-12) 0 var(--space-4); }
.story-content h2:first-of-type { margin-top: 0; }
.story-content p { font-size: var(--text-md); color: var(--text-secondary); line-height: 2; margin-bottom: var(--space-5); }
.story-content .highlight { color: var(--brand-bronze-gold); font-weight: 700; }

/* ========== CHANNEL PAGE ========== */
.channel-detail { padding: var(--space-16) var(--space-5); background: var(--neutral-cream-light); }
.channel-detail__content { max-width: var(--container-narrow); margin: 0 auto; }
.channel-detail__content p { font-size: var(--text-md); color: var(--text-secondary); line-height: 2; margin-bottom: var(--space-5); }

/* ========== HERO SLIDER ========== */
.slider-section { padding: 0; background: var(--neutral-darkest); }
.slider { position: relative; width: 100%; height: 480px; overflow: hidden; background: var(--neutral-darkest); }
.slider__track { display: flex; height: 100%; transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); will-change: transform; }
.slider__slide { flex: 0 0 100%; position: relative; height: 100%; overflow: hidden; }
.slider__slide img { width: 100%; height: 100%; object-fit: cover; display: block; }
.slider__overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: var(--space-10);
  background: linear-gradient(135deg, rgba(26,26,26,0.7), rgba(45,80,22,0.45), rgba(10,10,10,0.3));
}
.slider__overlay h2 {
  font-size: clamp(1.75rem, 4.5vw, 2.75rem); font-weight: 900; color: var(--neutral-white);
  margin-bottom: var(--space-4); letter-spacing: 3px;
  text-shadow: 0 4px 16px rgba(0,0,0,0.6);
}
.slider__overlay p {
  color: var(--text-on-dark-secondary); margin-bottom: var(--space-6);
  font-size: clamp(var(--text-base), 1.5vw, var(--text-lg)); max-width: 560px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

/* Slider Nav Buttons */
.slider__btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(0,0,0,0.5); color: var(--neutral-white); border: 1px solid var(--dark-alpha-10);
  width: 48px; height: 48px; border-radius: 50%; cursor: pointer; z-index: 10;
  font-size: 20px; display: flex; align-items: center; justify-content: center;
  transition: all var(--transition-base); backdrop-filter: blur(4px);
}
.slider__btn:hover { background: var(--brand-bronze-gold); color: var(--neutral-darker); border-color: var(--brand-bronze-gold); }
.slider__btn--prev { left: 16px; }
.slider__btn--next { right: 16px; }

/* Slider Dots */
.slider__dots {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 10;
}
.slider__dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,0.4); border: 1px solid rgba(255,255,255,0.3);
  cursor: pointer; transition: all var(--transition-base);
}
.slider__dot.active { background: var(--brand-bronze-gold); border-color: var(--brand-bronze-gold); transform: scale(1.3); }
.slider__dot:hover { background: rgba(255,255,255,0.7); }

/* Slider Touch Support */
.slider__slide::after { content: ''; position: absolute; inset: 0; pointer-events: none; }

/* Slider Responsive */
@media (max-width: 768px) {
  .slider { height: 340px; }
  .slider__btn { width: 36px; height: 36px; font-size: 16px; }
  .slider__btn--prev { left: 8px; }
  .slider__btn--next { right: 8px; }
  .slider__dots { bottom: 14px; gap: 8px; }
  .slider__dot { width: 8px; height: 8px; }
}
@media (max-width: 480px) {
  .slider { height: 260px; }
  .slider__btn { width: 30px; height: 30px; font-size: 14px; }
  .slider__overlay { padding: var(--space-5); }
  .slider__overlay h2 { font-size: 1.25rem; letter-spacing: 1px; margin-bottom: var(--space-2); }
  .slider__overlay p { font-size: var(--text-sm); margin-bottom: var(--space-4); }
  .slider__dots { bottom: 10px; gap: 6px; }
  .slider__dot { width: 7px; height: 7px; }
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-30px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; } .reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; } .reveal-delay-4 { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .pillars-grid { grid-template-columns: 1fr; max-width: 600px; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
  .product-detail__grid { grid-template-columns: 1fr; }
  .fruit-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav { padding: var(--space-3) var(--space-5); }
  .nav__logo-text { display: none; }
  .hamburger { display: flex; }
  .nav__links {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    flex-direction: column; background: var(--dark-alpha-98);
    backdrop-filter: blur(16px); padding: 80px 32px 32px;
    transition: right var(--transition-base); z-index: 99; align-items: flex-start;
  }
  .nav__links.nav-open { right: 0; }
  .nav__links a { width: 100%; padding: var(--space-3) 18px; }
  .hero__logo-img { height: 100px; }
  .hero__content { padding: 100px 20px 40px; }
  .hero__scene { margin-top: -40px; padding-bottom: 40px; }
  .products-grid { grid-template-columns: 1fr; max-width: 400px; }
  .knowledge-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .pillars-section, .products-section, .knowledge-section, .faq-section, .data-trust-section { padding: 60px var(--space-5); }
  .scene-divider { height: 280px; }
  .channel-grid { grid-template-columns: 1fr; }
  .data-trust-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__bottom { flex-direction: column; text-align: center; }
  .product-detail__info h2 { font-size: var(--text-3xl); }
  .comparison-table { font-size: var(--text-sm); }
  .comparison-table th, .comparison-table td { padding: var(--space-2) var(--space-3); font-size: var(--text-xs); }
  .fruit-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .hero__title { font-size: 32px; letter-spacing: 3px; }
  .hero__actions { flex-direction: column; width: 100%; }
  .hero__actions .btn { width: 100%; text-align: center; }
  .section-title { font-size: 24px; }
  .scene-divider { height: 220px; }
  .data-trust-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .page-header { padding: 120px var(--space-5) var(--space-10); }
  .fruit-grid { grid-template-columns: 1fr; }
  .btn-cta { padding: 14px 32px; font-size: 16px; }
}