/* =====================================================
   厦门梦翔天空科技有限公司 — 企业官网样式
   ===================================================== */

/* ---------- CSS 变量 ---------- */
:root {
  --primary: #1a56db;
  --primary-dark: #1e429f;
  --primary-light: #e8f0fe;
  --accent: #0ea5e9;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --bg-dark: #0f172a;
  --border: #e5e7eb;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.14);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all .3s cubic-bezier(.4,0,.2,1);
  --font: 'Noto Sans SC', -apple-system, 'PingFang SC', sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text-primary);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ---------- 通用容器 ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---------- 通用 section ---------- */
.section { padding: 6rem 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 2rem;
  border-radius: 8px;
  font-size: .95rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,86,219,.35);
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,.5);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.12);
  border-color: #fff;
}
.btn-full { width: 100%; justify-content: center; }

/* ---------- section header ---------- */
.section-header { text-align: center; margin-bottom: 4rem; }
.section-tag {
  display: inline-block;
  padding: .3rem .9rem;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  margin-bottom: 1rem;
}
.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: .75rem;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto;
}

/* ---------- Fade-in 动画 ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =====================================================
   导航栏
   ===================================================== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.2rem 0;
  transition: var(--transition);
}
#navbar.scrolled {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  padding: .75rem 0;
}
#navbar.scrolled .logo-cn,
#navbar.scrolled .logo-en,
#navbar.scrolled .nav-item { color: var(--text-primary); }
#navbar.scrolled .logo-icon { color: var(--primary); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: .65rem;
  cursor: pointer;
}
.logo-icon {
  font-size: 1.6rem;
  color: #fff;
  transition: var(--transition);
}
.logo-cn {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  transition: var(--transition);
}
.logo-en {
  font-size: .65rem;
  font-weight: 400;
  color: rgba(255,255,255,.7);
  letter-spacing: .1em;
  transition: var(--transition);
}
#navbar.scrolled .logo-en { color: var(--text-muted); }

.nav-links { display: flex; gap: .5rem; }
.nav-item {
  padding: .5rem 1rem;
  border-radius: 6px;
  font-size: .9rem;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  transition: var(--transition);
}
.nav-item:hover, .nav-item.active {
  color: #fff;
  background: rgba(255,255,255,.15);
}
#navbar.scrolled .nav-item { color: var(--text-secondary); }
#navbar.scrolled .nav-item:hover,
#navbar.scrolled .nav-item.active {
  color: var(--primary);
  background: var(--primary-light);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .4rem;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}
#navbar.scrolled .hamburger span { background: var(--text-primary); }

/* =====================================================
   Hero 首页
   ===================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #0f172a 100%);
  overflow: hidden;
  padding-top: 5rem;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .35;
}
.orb1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #3b82f6, transparent);
  top: -150px; right: -100px;
}
.orb2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #6366f1, transparent);
  bottom: -100px; left: -100px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
}
.badge {
  display: inline-block;
  padding: .4rem 1.1rem;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 20px;
  color: rgba(255,255,255,.8);
  font-size: .8rem;
  letter-spacing: .1em;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(4px);
}
.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 1.5rem;
}
.gradient-text {
  background: linear-gradient(90deg, #60a5fa, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,.7);
  max-width: 600px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}
.pc-only { display: inline; }
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 4rem; }

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 2.4rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}
.stat-unit { font-size: 1.2rem; color: rgba(255,255,255,.7); }
.stat-label {
  display: block;
  font-size: .8rem;
  color: rgba(255,255,255,.55);
  margin-top: .3rem;
  letter-spacing: .05em;
}
.stat-divider {
  width: 1px; height: 40px;
  background: rgba(255,255,255,.15);
}

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  color: rgba(255,255,255,.4);
  font-size: .75rem;
  letter-spacing: .08em;
  z-index: 1;
}
.scroll-arrow {
  width: 20px; height: 20px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  animation: bounce 1.6s infinite;
}
@keyframes bounce {
  0%,100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(5px); }
}

/* =====================================================
   亮点卡片
   ===================================================== */
.highlights-section { background: var(--bg-alt); padding: 5rem 0; }
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.highlight-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.highlight-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.hc-icon {
  width: 48px; height: 48px;
  background: var(--primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
}
.hc-icon svg { width: 22px; height: 22px; color: var(--primary); }
.highlight-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: .6rem; }
.highlight-card p { font-size: .9rem; color: var(--text-secondary); line-height: 1.65; }

/* =====================================================
   关于我们
   ===================================================== */
.about-section { background: var(--bg); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-bottom: 5rem;
}
.about-visual { position: relative; }
.about-card-main {
  background: linear-gradient(135deg, #0f172a, #1e3a8a);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  color: #fff;
  margin-bottom: 1rem;
}
.acm-logo { font-size: 2rem; margin-bottom: 1rem; opacity: .8; }
.acm-company { font-size: 1.3rem; font-weight: 700; margin-bottom: .4rem; }
.acm-slogan { font-size: .9rem; color: rgba(255,255,255,.6); margin-bottom: 1.5rem; }
.acm-tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.acm-tags span {
  padding: .3rem .8rem;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 20px;
  font-size: .75rem;
  color: rgba(255,255,255,.8);
}

.about-card-sub {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .75rem;
}
.acs-item {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  border: 1px solid var(--border);
}
.acs-item strong { display: block; font-size: .75rem; color: var(--text-muted); margin-bottom: .3rem; }
.acs-item span { font-size: .95rem; font-weight: 600; color: var(--primary); }

.about-text h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: .8rem;
  padding-bottom: .6rem;
  border-bottom: 2px solid var(--primary-light);
  color: var(--text-primary);
}
.about-text p {
  font-size: .95rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.8;
}
.values-list { display: flex; flex-direction: column; gap: 1rem; }
.value-item { display: flex; align-items: flex-start; gap: .75rem; }
.vi-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
  margin-top: .55rem;
  flex-shrink: 0;
}
.value-item strong { display: block; font-size: .9rem; margin-bottom: .2rem; }
.value-item span { font-size: .85rem; color: var(--text-secondary); }

/* 时间线 */
.timeline { margin-top: 1rem; }
.timeline-list {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
.timeline-list::before {
  content: '';
  position: absolute;
  top: 30px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 0;
}
.tl-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
}
.tl-year {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: .6rem;
}
.tl-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--primary);
  margin-bottom: .75rem;
}
.tl-content { font-size: .82rem; color: var(--text-secondary); line-height: 1.6; }

/* =====================================================
   产品服务
   ===================================================== */
.services-section { background: var(--bg-alt); }
.services-tabs {
  display: flex;
  gap: .5rem;
  margin-bottom: 2.5rem;
  background: #fff;
  border-radius: var(--radius);
  padding: .4rem;
  border: 1px solid var(--border);
  width: fit-content;
}
.stab {
  padding: .65rem 1.4rem;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.stab.active, .stab:hover {
  background: var(--primary);
  color: #fff;
}

.tab-panels { position: relative; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.panel-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.panel-info h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; }
.panel-info p { color: var(--text-secondary); margin-bottom: 1.5rem; line-height: 1.8; }
.panel-list { display: flex; flex-direction: column; gap: .6rem; }
.panel-list li {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .92rem;
  color: var(--text-secondary);
}
.panel-list li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

.panel-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-content: start;
}
.pcard {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 1.3rem;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.pcard:hover { border-color: var(--primary); box-shadow: var(--shadow-md); }
.pcard-icon { font-size: 1.6rem; margin-bottom: .6rem; }
.pcard h4 { font-size: .92rem; font-weight: 600; margin-bottom: .3rem; }
.pcard p { font-size: .82rem; color: var(--text-secondary); line-height: 1.55; }

/* 合作流程 */
.process { margin-top: 4rem; }
.process-title {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2.5rem;
}
.process-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.ps-item {
  text-align: center;
  background: #fff;
  border-radius: var(--radius);
  padding: 1.8rem 1.4rem;
  min-width: 160px;
  border: 1px solid var(--border);
  position: relative;
  transition: var(--transition);
}
.ps-item:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.ps-num {
  position: absolute;
  top: -10px; left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  padding: .2rem .5rem;
  border-radius: 10px;
}
.ps-icon { font-size: 1.8rem; margin-bottom: .6rem; }
.ps-item h4 { font-size: .95rem; font-weight: 600; margin-bottom: .4rem; }
.ps-item p { font-size: .8rem; color: var(--text-secondary); }
.ps-arrow { font-size: 1.4rem; color: var(--text-muted); }

/* =====================================================
   客户评价
   ===================================================== */
.testimonials-section { background: var(--bg); }
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.testi-card {
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.testi-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.testi-stars { color: #f59e0b; font-size: 1rem; margin-bottom: 1rem; letter-spacing: .1em; }
.testi-card p {
  font-size: .92rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.5rem;
  font-style: italic;
}
.testi-author { display: flex; align-items: center; gap: .75rem; }
.ta-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
}
.testi-author strong { display: block; font-size: .9rem; }
.testi-author span { font-size: .78rem; color: var(--text-muted); }

/* =====================================================
   联系我们
   ===================================================== */
.contact-section { background: var(--bg-alt); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}
.contact-info h3 { font-size: 1.4rem; font-weight: 600; margin-bottom: 1rem; }
.contact-info > p { color: var(--text-secondary); margin-bottom: 2rem; line-height: 1.8; }
.ci-items { display: flex; flex-direction: column; gap: 1.2rem; }
.ci-item { display: flex; align-items: flex-start; gap: .9rem; }
.ci-icon {
  width: 42px; height: 42px;
  background: var(--primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ci-icon svg { width: 18px; height: 18px; color: var(--primary); }
.ci-item strong { display: block; font-size: .85rem; margin-bottom: .2rem; }
.ci-item span { font-size: .88rem; color: var(--text-secondary); }

/* 表单 */
.contact-form {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.3rem; }
.form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 500;
  margin-bottom: .45rem;
  color: var(--text-primary);
}
.form-group label em { color: #ef4444; font-style: normal; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .7rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: .9rem;
  color: var(--text-primary);
  background: var(--bg);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-group select { appearance: none; cursor: pointer; }

/* =====================================================
   页脚
   ===================================================== */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.7);
  padding: 4rem 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand p { font-size: .88rem; line-height: 1.8; margin-top: .5rem; color: rgba(255,255,255,.5); }
.footer-links h4,
.footer-contact h4 {
  color: #fff;
  font-size: .95rem;
  margin-bottom: 1.2rem;
}
.footer-links a {
  display: block;
  font-size: .88rem;
  color: rgba(255,255,255,.5);
  margin-bottom: .6rem;
  transition: var(--transition);
}
.footer-links a:hover { color: #fff; }
.footer-contact p { font-size: .88rem; margin-bottom: .5rem; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  font-size: .8rem;
  color: rgba(255,255,255,.3);
  flex-wrap: wrap;
  gap: .5rem;
}

/* =====================================================
   返回顶部
   ===================================================== */
.back-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 44px; height: 44px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  z-index: 999;
}
.back-top.show { opacity: 1; pointer-events: all; }
.back-top:hover { background: var(--primary-dark); transform: translateY(-2px); }

/* =====================================================
   弹窗
   ===================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  text-align: center;
  max-width: 380px;
  width: 90%;
  transform: scale(.9);
  transition: transform .3s;
}
.modal-overlay.active .modal { transform: scale(1); }
.modal-icon {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #d1fae5;
  color: #059669;
  font-size: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.2rem;
}
.modal h3 { font-size: 1.3rem; margin-bottom: .7rem; }
.modal p { color: var(--text-secondary); margin-bottom: 1.8rem; font-size: .92rem; }

/* =====================================================
   响应式
   ===================================================== */
@media (max-width: 1024px) {
  .highlights-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .panel-layout { grid-template-columns: 1fr; }
  .testi-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 4rem 0; }
  .container { padding: 0 1.25rem; }
  .section-title { font-size: 1.8rem; }
  .pc-only { display: none; }

  /* 导航 */
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(15,23,42,.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 1rem;
    gap: .3rem;
  }
  .nav-links.open { display: flex; }
  .nav-item { color: rgba(255,255,255,.8); }
  .hamburger { display: flex; }

  /* Hero */
  .hero-stats { gap: 1.5rem; }
  .stat-num { font-size: 1.8rem; }
  .stat-divider { display: none; }

  /* highlights */
  .highlights-grid { grid-template-columns: 1fr; }

  /* About */
  .timeline-list { flex-direction: column; gap: 1.5rem; }
  .timeline-list::before {
    width: 2px; height: auto;
    left: 12px; top: 0; bottom: 0; right: auto;
  }
  .tl-item { flex-direction: row; align-items: flex-start; text-align: left; gap: 1rem; }
  .tl-dot { flex-shrink: 0; margin: .2rem 0 0; }

  /* services */
  .services-tabs { flex-wrap: wrap; }
  .panel-cards { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; }
  .ps-arrow { transform: rotate(90deg); }

  /* contact */
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row { grid-template-columns: 1fr; }

  /* testi */
  .testi-grid { grid-template-columns: 1fr; }

  /* footer */
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero-btns { flex-direction: column; }
  .btn { justify-content: center; }
  .about-card-sub { grid-template-columns: 1fr; }
}