/* ===== iwarm 首页样式 ===== */
/* ===== Button Groups ===== */
.btn-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.btn-group .btn { margin-left: 0 !important; }

/* ===== Hero ===== */
.hero { min-height: 92vh; position: relative; overflow: hidden; display: flex; align-items: center; }
.hero-bg { position: absolute; inset: 0; z-index: 0; background: center center/cover no-repeat; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(15,15,25,0.82) 0%, rgba(15,15,25,0.55) 60%, rgba(15,15,25,0.3) 100%); }
.hero-content { position: relative; z-index: 2; max-width: var(--max-width); margin: 0 auto; padding: 100px 24px; width: 100%; }
.hero-text { max-width: 720px; margin: 0 auto; text-align: center; }
.hero-text h1 { font-size: clamp(36px, 5vw, 56px); font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 20px; }
.hero-text h1 .highlight { color: #B3E044; }
.hero-desc { font-size: 17px; line-height: 1.8; color: rgba(255,255,255,0.75); max-width: 540px; margin-bottom: 36px; text-align: left; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.hero-actions .btn { padding: 14px 32px; font-size: 15px; font-weight: 600; border-radius: 30px; min-width: 180px; text-align: center; }
.btn-outline-warm { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.4); transition: all 0.25s; }
.btn-outline-warm:hover { background: rgba(255,255,255,0.1); border-color: #fff; }

/* Hero 内辅助短句 */
.hero-aux-strip { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 32px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1); }
.hero-aux-item { font-size: 14px; color: rgba(255,255,255,0.65); font-weight: 500; display: flex; align-items: center; gap: 8px; }
.aux-dot { width: 6px; height: 6px; background: var(--primary); border-radius: 50%; flex-shrink: 0; }

/* ===== 辅助短句（横向滚动条） ===== */
.aux-sentence-strip { background: var(--bg-cream); border-bottom: 1px solid var(--border-light); padding: 16px 0; overflow: hidden; }
.aux-scroll { display: flex; gap: 32px; white-space: nowrap; animation: aux-scroll 30s linear infinite; }
.aux-scroll:hover { animation-play-state: paused; }
.aux-item { font-size: 14px; color: var(--text-mid); font-weight: 500; flex-shrink: 0; }
.aux-item::before { content: '◆'; color: var(--primary); margin-right: 8px; font-size: 10px; }
@keyframes aux-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== 品牌简介 ===== */
.brand-section { background: var(--bg-white); padding: 80px 0; }
.brand-heading { font-size: clamp(32px, 5vw, 48px) !important; font-weight: 900 !important; color: var(--text-dark) !important; margin-bottom: 32px !important; }
.brand-intro-text { font-size: 17px; line-height: 1.8; color: var(--text-mid); max-width: 700px; margin: 0 auto 40px; text-align: center; }
.brand-pain-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 800px; margin: 0 auto 40px; }
.pain-point-card { background: var(--bg-light); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; transition: all var(--transition); }
.pain-point-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); }
.pain-point-card h4 { font-size: 15px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.pain-point-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; }
.brand-closing-text { font-size: 15px; line-height: 1.8; color: var(--text-mid); max-width: 800px; margin: 0 auto 32px; text-align: center; }
.brand-actions { display: flex; gap: 16px; justify-content: center; }

/* ===== 核心优势 ===== */
.advantages-section { background: var(--bg-light); padding: 80px 0; }
.advantages-main-title { font-size: clamp(28px, 4vw, 40px) !important; font-weight: 900 !important; color: var(--text-dark) !important; margin-bottom: 12px !important; }
.advantages-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 40px; }
.advantage-card { background: var(--bg-white); border-radius: var(--radius-lg); padding: 32px; border: 1px solid var(--border); transition: all var(--transition); }
.advantage-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.advantage-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; color: var(--text-dark); }
.advantage-card p { font-size: 14px; color: var(--text-mid); line-height: 1.7; }

/* Advantages Dark Mode */
.advantages-section.dark-mode {
  background: linear-gradient(135deg, #1a1a2e, #2d2d2d);
  color: #fff;
}
.advantages-section.dark-mode .section-label {
  color: var(--primary);
  text-shadow: 0 0 20px rgba(156,200,41,0.3);
}
.advantages-section.dark-mode .section-title {
  color: #fff !important;
}
.advantages-section.dark-mode .section-desc { color: rgba(255,255,255,0.7); }
.advantages-section.dark-mode .advantage-card {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.1);
}
.advantages-section.dark-mode .advantage-card h3 { color: #fff; }
.advantages-section.dark-mode .advantage-card p { color: rgba(255,255,255,0.6); }
.advantages-section.dark-mode .advantage-card:hover {
  border-color: var(--primary);
  background: rgba(156,200,41,0.08);
}

.install-cards-section.dark-mode {
  background: linear-gradient(135deg, #1a1a2e, #2d2d2d);
  color: #fff;
}
.install-cards-section.dark-mode .section-label {
  color: var(--primary);
  text-shadow: 0 0 20px rgba(156,200,41,0.3);
}
.install-cards-section.dark-mode .section-title {
  color: #fff;
}
.install-cards-section.dark-mode .section-desc { color: rgba(255,255,255,0.7); }
.install-cards-section.dark-mode .install-card {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.1);
}
.install-cards-section.dark-mode .install-card h3 { color: #fff; }
.install-cards-section.dark-mode .install-card p { color: rgba(255,255,255,0.6); }
.install-cards-section.dark-mode .install-card:hover {
  border-color: var(--primary);
  background: rgba(156,200,41,0.08);
}

/* ===== 产品中心（3档卡片） ===== */
.product-tiers-section { background: var(--bg-white); padding: 80px 0; }
.product-tiers-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-tier-card { background: var(--bg-light); border: 2px solid var(--border); border-radius: var(--radius-lg); padding: 32px; text-align: center; transition: all var(--transition); }
.product-tier-card:hover { border-color: var(--primary); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.tier-icon { font-size: 2.5rem; margin-bottom: 16px; }
.product-tier-card h3 { font-size: 20px; font-weight: 800; margin-bottom: 12px; color: var(--text-dark); }
.tier-desc { font-size: 14px; color: var(--text-mid); line-height: 1.7; margin-bottom: 16px; }
.tier-tags { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.tier-tag { background: rgba(156,200,41,0.1); color: var(--primary); padding: 4px 14px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.product-tier-card .btn-sm { padding: 8px 20px; font-size: 13px; }

/* ===== Area Cards ===== */
.area-cards-section { background: var(--bg-white); padding: 80px 0; }
.area-cards-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.area-card { background: var(--bg-light); border: 2px solid var(--border); border-radius: var(--radius-lg); padding: 32px 24px; text-align: center; transition: all var(--transition); cursor: pointer; text-decoration: none; color: inherit; position: relative; }
.area-card:hover { border-color: var(--primary); background: var(--bg-warm); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.area-card::before {
  content: ''; position: absolute; inset: 0;
  border-radius: var(--radius-lg); padding: 2px;
  background: var(--gradient-warm);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity 0.3s;
}
.area-card:hover::before { opacity: 1; }
.area-card-icon { font-size: 2.5rem; margin-bottom: 12px; }
.area-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 6px; color: var(--text-dark); }
.area-card .power { font-size: clamp(1.8rem, 3vw, 2.2rem); font-weight: 900; background: var(--gradient-warm); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 8px; }
.area-card p { font-size: 0.85rem; color: var(--text-mid); }
.area-card-item { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.area-card-btn { margin-top: 4px; }
.area-disclaimer { text-align: center; font-size: 12px; color: var(--text-light); margin-top: 24px; line-height: 1.6; max-width: 800px; margin-left: auto; margin-right: auto; }

/* ===== 智能功能 ===== */
.smart-features-section { background: var(--bg-warm); padding: 80px 0; }
.smart-features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.smart-feature-card { background: var(--bg-white); border-radius: var(--radius-lg); padding: 28px; border: 1px solid var(--border); transition: all var(--transition); text-align: center; }
.smart-feature-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.sf-icon { width: 56px; height: 56px; margin: 0 auto 16px; background: linear-gradient(135deg, rgba(156,200,41,0.1), rgba(244,166,35,0.08)); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; }
.smart-feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--text-dark); }
.smart-feature-card p { font-size: 13px; color: var(--text-mid); line-height: 1.6; }

/* ===== 安装售后卡片 ===== */
.install-cards-section { background: var(--bg-white); padding: 80px 0; }
.install-cards-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.install-card { background: var(--bg-light); border-radius: var(--radius-lg); padding: 28px; border: 1px solid var(--border); text-align: center; transition: all var(--transition); display: flex; flex-direction: column; }
.install-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.ic-icon { font-size: 2rem; margin-bottom: 12px; }
.install-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--text-dark); }
.install-card p { font-size: 13px; color: var(--text-mid); line-height: 1.6; margin-bottom: 16px; }
.install-card .btn-sm { padding: 6px 16px; font-size: 13px; margin-top: auto; }

/* ===== 底部转化区 ===== */
.cta-section { background: linear-gradient(135deg, #1a1a2e, #16213e); padding: 80px 0; }
.cta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.cta-text h2 { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-text p { font-size: 15px; color: rgba(255,255,255,0.7); line-height: 1.8; margin-bottom: 24px; }
.cta-actions { display: flex; gap: 16px; }
.cta-form-box { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-lg); padding: 32px; }
.cta-form-box h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 20px; }
.cta-form-box .form-group { margin-bottom: 14px; }
.cta-form-box .form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: rgba(255,255,255,0.7); margin-bottom: 6px; }
.cta-form-box .form-group input,
.cta-form-box .form-group select,
.cta-form-box .form-group textarea { width: 100%; padding: 10px 14px; border: 1px solid rgba(255,255,255,0.15); border-radius: 8px; font-size: 0.95rem; font-family: inherit; background: rgba(255,255,255,0.05); color: #fff; }
.cta-form-box .form-group input::placeholder,
.cta-form-box .form-group textarea::placeholder { color: rgba(255,255,255,0.4); }
.cta-form-box .form-group input:focus,
.cta-form-box .form-group select:focus,
.cta-form-box .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(156,200,41,0.15); }
.cta-form-box .form-group textarea { resize: vertical; min-height: 80px; }
.cta-form-box .form-group select option { background: #1a1a2e; color: #fff; }

/* ===== Feature Strip ===== */
.feature-strip { background: var(--bg-cream); border-bottom: 1px solid var(--border-light); display: grid; grid-template-columns: repeat(4, 1fr); padding: 28px 40px; }
.feature-item { display: flex; align-items: flex-start; gap: 16px; padding: 8px 24px; border-right: 1px solid var(--border-light); }
.feature-item:last-child { border-right: none; }
.feature-icon-box { width: 48px; height: 48px; flex-shrink: 0; background: rgba(156,200,41,0.08); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 22px; }
.feature-text h4 { font-size: 15px; font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }
.feature-text p { font-size: 13px; color: var(--text-light); line-height: 1.5; }

/* ===== Hot Products ===== */
.hot-products-section { background: var(--bg-light); padding: 80px 0; }
.hot-products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.hot-product-card { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition); text-decoration: none; color: inherit; }
.hot-product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.hot-product-img { height: 200px; background: var(--bg-warm); display: flex; align-items: center; justify-content: center; padding: 16px; }
.hot-product-img img { max-height: 100%; max-width: 100%; object-fit: contain; }
.hot-product-info { padding: 20px; }
.hot-product-info h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; color: var(--text-dark); }
.hot-product-info p { font-size: 0.85rem; color: var(--text-mid); line-height: 1.5; margin-bottom: 12px; }
.hot-product-tag { display: inline-block; background: rgba(156,200,41,0.1); color: var(--primary); padding: 3px 12px; border-radius: 20px; font-size: 11px; font-weight: 600; }

/* ===== Values ===== */
.values-section { background: var(--bg-white); }
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.value-card { text-align: center; padding: 40px 24px; background: var(--bg-light); border-radius: var(--radius-lg); transition: all var(--transition); }
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.value-icon { width: 72px; height: 72px; margin: 0 auto 16px; background: linear-gradient(135deg, rgba(156,200,41,0.1), rgba(244,166,35,0.08)); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 32px; }
.value-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.value-card p { color: var(--text-light); font-size: 13px; line-height: 1.6; }

/* ===== Smart System ===== */
.smart-section { background: var(--bg-warm); }
.smart-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; background: var(--bg-white); border-radius: var(--radius-lg); padding: 60px; box-shadow: var(--shadow-sm); }
.smart-text h2 { font-size: 32px; font-weight: 800; margin-bottom: 16px; }
.smart-text > p { color: var(--text-mid); font-size: 15px; line-height: 1.8; margin-bottom: 28px; }
.smart-features-list { list-style: none; padding: 0; }
.smart-features-list li { display: flex; align-items: flex-start; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--border-light); }
.smart-features-list li:last-child { border-bottom: none; }
.smart-features-list li .num { width: 32px; height: 32px; min-width: 32px; background: rgba(156,200,41,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 14px; font-weight: 700; margin-top: 2px; }
.smart-features-list li h5 { font-size: 15px; font-weight: 600; margin-bottom: 2px; }
.smart-features-list li p { color: var(--text-light); font-size: 13px; }
.smart-visual { display: flex; justify-content: center; }
.smart-visual img { width: 100%; border-radius: var(--radius); }

/* ===== Solutions ===== */
.solutions-section { background: var(--bg-white); }
.solutions-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.solution-card { background: var(--bg-light); border-radius: var(--radius-lg); padding: 32px; transition: all var(--transition); border: 1px solid transparent; text-decoration: none; color: inherit; display: flex; flex-direction: column; align-items: center; text-align: center; }
.solution-card:hover { background: var(--bg-white); border-color: var(--border); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.solution-icon { font-size: 36px; margin-bottom: 16px; }
.solution-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.solution-card p { color: var(--text-mid); font-size: 14px; line-height: 1.6; margin-bottom: 16px; flex-grow: 1; }
.solution-link { color: var(--primary); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 4px; margin-top: auto; }

/* ===== Install & Service (old) ===== */
.install-service-section { background: var(--bg-light); }
.install-steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 40px; }
.install-step { text-align: center; padding: 24px; background: var(--bg-white); border-radius: var(--radius-lg); border: 1px solid var(--border); }
.install-step-num { width: 48px; height: 48px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 1.2rem; margin: 0 auto 12px; }
.install-step h4 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.install-step p { font-size: 0.85rem; color: var(--text-mid); }
.service-promise-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-promise { text-align: center; padding: 20px; background: var(--bg-warm); border-radius: var(--radius); }
.service-promise-icon { font-size: 2rem; margin-bottom: 8px; }
.service-promise h5 { font-size: 0.9rem; font-weight: 600; margin-bottom: 4px; }
.service-promise p { font-size: 0.8rem; color: var(--text-mid); }

/* ===== Cases ===== */
.cases-section { background: var(--bg-white); }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { background: var(--bg-light); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); transition: all var(--transition); }
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-img { height: 180px; background: linear-gradient(135deg, var(--bg-warm), var(--bg-light)); display: flex; align-items: center; justify-content: center; font-size: 48px; }
.case-info { padding: 24px; }
.case-info h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.case-info p { color: var(--text-mid); font-size: 13px; line-height: 1.6; }
.case-tags { display: flex; gap: 8px; margin-top: 12px; }
.case-tags span { background: rgba(156,200,41,0.1); padding: 3px 10px; border-radius: 12px; font-size: 11px; color: var(--primary); font-weight: 600; }
.case-link { display: inline-block; margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--primary); text-decoration: none; padding: 6px 16px; border: 1.5px solid var(--primary); border-radius: 30px; transition: all var(--transition); }
.case-link:hover { background: var(--primary); color: #fff; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-light); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; transition: all 0.2s; }
.faq-item:hover { border-color: var(--primary); }
.faq-q { padding: 18px 24px; cursor: pointer; font-weight: 600; display: flex; justify-content: space-between; align-items: center; font-size: 15px; }
.faq-q::after { content: '+'; font-size: 1.3rem; color: var(--primary); transition: transform 0.2s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s; padding: 0 24px; color: var(--text-mid); font-size: 14px; line-height: 1.7; }
.faq-item.open .faq-a { max-height: 600px; padding: 0 24px 18px; }
.faq-link { display: inline-block; margin: 0 24px 14px; font-size: 13px; font-weight: 600; color: var(--primary); text-decoration: none; padding: 6px 16px; border: 1.5px solid var(--primary); border-radius: 30px; transition: all var(--transition); }
.faq-link:hover { background: var(--primary); color: #fff; }

/* ===== Certifications ===== */
.certs-section { background: var(--bg-white); }
.certs-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.cert-item { text-align: center; padding: 28px 16px; background: var(--bg-light); border-radius: var(--radius-lg); border: 1px solid var(--border); transition: all var(--transition); }
.cert-item:hover { border-color: var(--primary); transform: translateY(-2px); }
.cert-icon { font-size: 2.5rem; margin-bottom: 10px; }
.cert-item h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; }
.cert-item p { font-size: 0.75rem; color: var(--text-light); }
.cert-intro { font-size: 14px; color: var(--text-mid); line-height: 1.8; max-width: 800px; margin: 0 auto 32px; }

/* ===== Knowledge ===== */
.knowledge-section { background: var(--bg-light); }
.knowledge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.knowledge-card { background: var(--bg-white); border-radius: var(--radius-lg); padding: 28px; border: 1px solid var(--border); transition: all var(--transition); text-decoration: none; color: inherit; }
.knowledge-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--primary); }
.knowledge-tag { display: inline-block; background: rgba(156,200,41,0.1); color: var(--primary); padding: 3px 12px; border-radius: 12px; font-size: 11px; font-weight: 600; margin-bottom: 14px; }
.knowledge-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.knowledge-card p { color: var(--text-mid); font-size: 13px; line-height: 1.6; }

/* ===== Scroll-Triggered Section Reveals ===== */
.section, .brand-section, .product-tiers-section, .area-cards-section,
.smart-features-section, .install-cards-section, .cta-section {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.section.revealed, .brand-section.revealed, .product-tiers-section.revealed,
.area-cards-section.revealed, .smart-features-section.revealed,
.install-cards-section.revealed, .cta-section.revealed {
  opacity: 1; transform: translateY(0);
}

/* ===== Hero Text Stagger ===== */
.hero-text h1 { opacity: 0; animation: hero-fade-up 0.6s 0.2s ease forwards; }
.hero-desc { opacity: 0; animation: hero-fade-up 0.6s 0.4s ease forwards; }
.hero-actions { opacity: 0; animation: hero-fade-up 0.6s 0.6s ease forwards; }
@keyframes hero-fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Floating Icon Animation ===== */
.tier-icon, .area-card-icon, .solution-icon, .ic-icon, .cert-icon {
  animation: icon-float 4s ease-in-out infinite;
}
.area-card-icon { animation-delay: 0.5s; }
.solution-icon { animation-delay: 1s; }
.ic-icon { animation-delay: 1.5s; }
@keyframes icon-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ===== Trust Badge Shimmer ===== */
.trust-badge .badge-icon {
  position: relative; overflow: hidden;
}
.trust-badge .badge-icon::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(156,200,41,0.15), transparent);
  transform: translateX(-100%);
  animation: shimmer 4s ease-in-out infinite;
}
@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ===== Section Label Glow ===== */
.section-label { position: relative; }
.section-label::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 30px; height: 2px; background: var(--primary);
  border-radius: 1px;
}

/* ===== Enhanced Card Hover Glow ===== */
.advantage-card::after, .product-tier-card::after, .smart-feature-card::after {
  content: ''; position: absolute; inset: -1px;
  border-radius: var(--radius-lg); padding: 1px;
  background: linear-gradient(135deg, transparent 40%, rgba(156,200,41,0.3), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity 0.4s;
}
.advantage-card:hover::after, .product-tier-card:hover::after,
.smart-feature-card:hover::after { opacity: 1; }
.advantage-card, .product-tier-card, .smart-feature-card { position: relative; }

/* ===== Number Counter Pulse (Power display) ===== */
.area-card .power { position: relative; }
.area-card:hover .power { animation: power-glow 1.5s ease-in-out infinite; }
@keyframes power-glow {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2); }
}

/* ===== CTA Button Pulse ===== */
.cta-btn-primary { animation: cta-btn-pulse 3s ease-in-out infinite; }
@keyframes cta-btn-pulse {
  0%, 100% { box-shadow: 0 6px 20px rgba(0,0,0,0.15); }
  50% { box-shadow: 0 6px 30px rgba(156,200,41,0.3); }
}

/* ===== FAQ Icon Rotation ===== */
.faq-q::after { transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); }

/* ===== Contact Info Hover Slide ===== */
.contact-info-item { transition: transform 0.3s ease, background 0.3s ease; }
.contact-info-item:hover { transform: translateX(4px); background: var(--bg-cream); padding-left: 8px; border-radius: 8px; }

/* ===== Case Card Image Zoom ===== */
.case-img { overflow: hidden; }
.case-img img { transition: transform 0.5s ease; }
.case-card:hover .case-img img { transform: scale(1.05); }

/* ===== Product Tier Card Shine ===== */
.product-tier-card::before {
  content: ''; position: absolute; top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
  transition: left 0.6s ease;
}
.product-tier-card:hover::before { left: 120%; }
.product-tier-card { position: relative; overflow: hidden; }

/* ===== Knowledge Card Border Animation ===== */
.knowledge-card { position: relative; overflow: hidden; }
.knowledge-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: var(--gradient-warm);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s ease;
}
.knowledge-card:hover::before { transform: scaleX(1); }

/* ===== Case Link Arrow Slide ===== */
.case-link, .solution-link, .faq-link { transition: gap 0.3s ease; }
.case-link:hover, .solution-link:hover, .faq-link:hover { gap: 8px; }

.install-cards-section.dark-mode { position: relative; }
.install-cards-section.dark-mode::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0.3;
}
.install-cards-section.dark-mode::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0.3;
}

/* ===== Dark Mode Section Divider ===== */
.advantages-section.dark-mode::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0.3;
}
.advantages-section.dark-mode::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0.3;
}
.advantages-section.dark-mode { position: relative; }

/* ===== Card Stagger Entrance ===== */
.product-tier-card, .area-card, .solution-card, .smart-feature-card, .install-card {
  opacity: 0; transform: translateY(20px);
  animation: card-enter 0.5s ease forwards;
}
.product-tier-card:nth-child(1), .area-card:nth-child(1), .solution-card:nth-child(1), .smart-feature-card:nth-child(1), .install-card:nth-child(1) { animation-delay: 0.1s; }
.product-tier-card:nth-child(2), .area-card:nth-child(2), .solution-card:nth-child(2), .smart-feature-card:nth-child(2), .install-card:nth-child(2) { animation-delay: 0.2s; }
.product-tier-card:nth-child(3), .area-card:nth-child(3), .solution-card:nth-child(3), .smart-feature-card:nth-child(3), .install-card:nth-child(3) { animation-delay: 0.3s; }
.product-tier-card:nth-child(4), .area-card:nth-child(4), .solution-card:nth-child(4), .smart-feature-card:nth-child(4), .install-card:nth-child(4) { animation-delay: 0.4s; }
.product-tier-card:nth-child(5), .solution-card:nth-child(5) { animation-delay: 0.5s; }
.product-tier-card:nth-child(6), .solution-card:nth-child(6) { animation-delay: 0.6s; }
@keyframes card-enter { to { opacity: 1; transform: translateY(0); } }

/* ===== CTA Breathing Glow ===== */
.cta-section { position: relative; overflow: hidden; }
.cta-section::before {
  content: ''; position: absolute;
  top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(156,200,41,0.06), transparent 50%);
  animation: cta-glow 8s ease-in-out infinite;
}
@keyframes cta-glow {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(10%, 5%); }
}

/* ===== Contact Form ===== */
.contact-form-section { background: var(--bg-white); padding: 80px 0; }
.contact-form-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-form-box { background: var(--bg-light); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px; }
.contact-form-box h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 24px; }
.contact-form-box .form-group { margin-bottom: 16px; }
.contact-form-box .form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; }
.contact-form-box .form-group input,
.contact-form-box .form-group select,
.contact-form-box .form-group textarea { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 0.95rem; font-family: inherit; }
.contact-form-box .form-group input:focus,
.contact-form-box .form-group select:focus,
.contact-form-box .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(156,200,41,0.1); }
.contact-form-box .form-group textarea { resize: vertical; min-height: 80px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-info-box h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 24px; }
.contact-info-item { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--border); }
.contact-info-item:last-child { border-bottom: none; }
.contact-info-icon { width: 44px; height: 44px; background: var(--bg-warm); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; }
.contact-info-label { font-size: 0.8rem; color: var(--text-light); margin-bottom: 4px; }
.contact-info-value { font-size: 1.05rem; font-weight: 600; color: var(--text-dark); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-bg::after { background: linear-gradient(180deg, rgba(15,15,25,0.88) 0%, rgba(15,15,25,0.7) 60%, rgba(15,15,25,0.5) 100%); }
  .hero-text { text-align: center; }
  .hero-desc { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .brand-pain-points { grid-template-columns: 1fr 1fr; }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .product-tiers-grid { grid-template-columns: repeat(2, 1fr); }
  .area-cards-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-strip { grid-template-columns: repeat(2, 1fr); }
  .hot-products-grid { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .smart-inner { grid-template-columns: 1fr; padding: 36px; }
  .smart-features-grid { grid-template-columns: repeat(2, 1fr); }
  .install-cards-grid { grid-template-columns: repeat(2, 1fr); }
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .install-steps-grid { grid-template-columns: repeat(2, 1fr); }
  .service-promise-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .certs-grid { grid-template-columns: repeat(3, 1fr); }
  .knowledge-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-form-inner { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .area-cards-grid, .feature-strip, .hot-products-grid, .values-grid, .solutions-grid, .install-steps-grid, .service-promise-grid, .cases-grid, .knowledge-grid, .smart-features-grid, .install-cards-grid, .product-tiers-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .brand-pain-points { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-aux-strip { flex-direction: column; gap: 10px; }
  .form-row-2 { grid-template-columns: 1fr; }
  .hero-text { text-align: left; }
  .hero-desc { text-align: left; margin: 0 auto 32px; }
  .brand-actions { flex-direction: column; align-items: center; }
  .brand-actions .btn { width: 100%; max-width: 280px; }
  .cta-actions { flex-direction: column; align-items: center; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 280px; }
  .btn-group { flex-direction: column; align-items: center; }
  .btn-group .btn { width: 100%; max-width: 280px; }
  /* Remove all inline margin-left spacing on mobile */
  .text-center .btn,
  .brand-actions .btn,
  .cta-actions .btn { margin-left: 0 !important; }
}

/* Dark mode section titles — force white */
.dark-mode .section-title { color: #fff !important; }
.dark-mode .section-desc { color: rgba(255,255,255,0.7) !important; }
.dark-mode .section-label { color: var(--primary) !important; }