/* ============================================================
   WILCOM HOME — style.css
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --primary:       #c45210;
  --primary-mid:   #e86c28;
  --accent:        #ff8c38;
  --accent-light:  #ffbf78;
  --bg:            #fffaf5;
  --bg-dark:       #1c0a02;
  --white:         #ffffff;
  --text:          #2a1506;
  --muted:         #7a5a40;
  --border:        #f5e2d0;

  --shadow-sm:  0 2px 12px rgba(196,82,16,.08);
  --shadow-md:  0 8px 32px rgba(196,82,16,.12);
  --shadow-lg:  0 20px 60px rgba(196,82,16,.16);

  --radius:     12px;
  --radius-lg:  20px;
  --ease:       0.3s ease;

  --header-h:   76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body  {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB',
               'Microsoft YaHei', 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}
a    { text-decoration: none; color: inherit; }
ul   { list-style: none; }
svg  { display: block; flex-shrink: 0; }
em   { font-style: normal; }
strong { font-weight: 700; }

/* ---------- Container ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Section helpers ---------- */
.section { padding: 96px 0; }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--primary-mid));
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: 50px;
  margin-bottom: 14px;
}
.section-tag--light {
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.35);
}
.section-title {
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.25;
}
.section-sub {
  margin-top: 14px;
  font-size: 15px;
  color: var(--muted);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-mid);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,140,56,.45);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.55);
}
.btn-outline:hover {
  background: rgba(255,255,255,.12);
  border-color: #fff;
}
.btn-white {
  background: #fff;
  color: var(--primary);
}
.btn-white:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
}
.btn-sm { padding: 9px 22px; font-size: 14px; }

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 900;
  height: var(--header-h);
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--ease);
}
.header.scrolled { box-shadow: var(--shadow-md); }

.navbar {
  display: flex;
  align-items: center;
  height: var(--header-h);
  gap: 36px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}
.logo-mark {
  width: 40px;
  height: 40px;
  background: linear-gradient(140deg, var(--primary), var(--accent));
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 13px;
  letter-spacing: -1px;
  flex-shrink: 0;
}
.logo-mark--sm { width: 36px; height: 36px; font-size: 12px; border-radius: 8px; }
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-cn { font-size: 16px; font-weight: 800; color: var(--primary); }
.logo-en { font-size: 10px; letter-spacing: 3px; color: var(--muted); margin-top: 3px; font-weight: 500; }
.nav-logo-img { height: 40px; width: auto; display: block; background: var(--primary); border-radius: 8px; padding: 4px 10px; }
.footer-logo-img { height: 48px; width: auto; display: block; }

/* Nav links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  padding: 8px 18px;
  border-radius: 7px;
  font-size: 16px;
  font-weight: 500;
  color: var(--muted);
  transition: var(--ease);
}
.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  background: rgba(255,140,56,.10);
}

/* Nav right */
.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.nav-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
  letter-spacing: 0.5px;
}
.nav-phone svg { width: 18px; height: 18px; color: var(--accent); }

.lang-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--ease);
  letter-spacing: .5px;
}
.lang-btn:hover { background: var(--accent); }

/* ---- Dropdown Nav ---- */
.nav-item { position: relative; }
.nav-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(196,82,16,.18);
  border: 1px solid var(--border);
  min-width: 192px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s, transform .2s, visibility .2s;
  z-index: 300;
  list-style: none;
  margin: 0;
}
.nav-item:hover > .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown li { list-style: none; }
.nav-dropdown a {
  display: block;
  padding: 9px 20px;
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  transition: var(--ease);
  white-space: nowrap;
}
.nav-dropdown a:hover,
.nav-dropdown a.active { color: var(--accent); background: rgba(255,140,56,.08); }
.dropdown-caret {
  width: 10px; height: 10px;
  display: inline-block;
  vertical-align: middle;
  margin-left: 3px;
  transition: transform .2s;
}
.nav-item:hover .dropdown-caret { transform: rotate(180deg); }

/* Hamburger */
.menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--ease);
}
.menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn.open span:nth-child(2) { opacity: 0; }
.menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 60vh;
  background-color: #3d1f08;
  background-image:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(232,108,40,.6) 0%, transparent 70%),
    linear-gradient(rgba(255,140,56,.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,140,56,.1) 1px, transparent 1px);
  background-size: auto, 56px 56px, 56px 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--header-h);
  padding-bottom: 60px;
}

.hero-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape { position: absolute; border-radius: 50%; }
.shape-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255,160,80,.2), transparent 70%);
  top: -100px; right: -80px;
}
.shape-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(220,100,40,.15), transparent 70%);
  bottom: -120px; left: -60px;
}
.shape-3 {
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(255,200,140,.1), transparent 70%);
  top: 40%; left: 60%;
}

.hero::before { display: none; }

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
  animation: heroIn .8s ease both;
}
@keyframes heroIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.22);
  color: rgba(255,255,255,.88);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  padding: 7px 20px;
  border-radius: 50px;
  margin-bottom: 26px;
}
.hero-title {
  font-size: clamp(36px, 5.5vw, 68px);
  font-weight: 900;
  color: #fff;
  line-height: 1.18;
  margin-bottom: 22px;
  letter-spacing: -.5px;
}
.hero-title em { color: var(--accent-light); }

.hero-desc {
  font-size: 16px;
  color: rgba(255,255,255,.72);
  max-width: 620px;
  margin: 0 auto 40px;
  line-height: 1.85;
}
.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll { display: none; }

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
  background: var(--primary);
  padding: 52px 0;
}
.stats-grid {
  display: flex;
  align-items: center;
  justify-content: center;
}
.stat-item  { flex: 1; text-align: center; padding: 0 20px; }
.stat-sep   { width: 1px; height: 48px; background: rgba(255,255,255,.18); flex-shrink: 0; }
.stat-num   {
  display: block;
  font-size: clamp(28px, 3.5vw, 46px);
  font-weight: 900;
  color: #fff;
  line-height: 1;
  letter-spacing: -1px;
}
.stat-label {
  display: block;
  font-size: 18px;
  font-weight: 600;
  color: rgba(255,255,255,.9);
  margin-top: 10px;
  letter-spacing: .5px;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--bg); }

.about-emblem {
  font-size: 72px;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -4px;
  display: inline-block;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text .section-tag { margin-bottom: 16px; }
.about-text .section-title { text-align: left; margin-bottom: 24px; }
.about-text p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 16px;
}
.about-text p strong { color: var(--primary); }

.about-highlights {
  margin: 20px 0 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.about-highlights li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}
.about-highlights li span {
  color: var(--accent);
  font-size: 12px;
  flex-shrink: 0;
  margin-top: 3px;
}
.about-highlights li strong { color: var(--primary); }

.about-quote {
  margin-top: 28px;
  padding: 18px 22px;
  border-left: 4px solid var(--accent);
  background: #fff;
  border-radius: 0 8px 8px 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Feature cards */
.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.feat-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  transition: transform var(--ease), box-shadow var(--ease);
}
.feat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.feat-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, rgba(192,96,48,.1), rgba(255,140,56,.10));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.feat-icon svg { width: 22px; height: 22px; color: var(--accent); }
.feat-card h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.feat-card p  { font-size: 13.5px; color: var(--muted); line-height: 1.75; margin-bottom: 16px; }

.feat-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}
.feat-tags span {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(196,82,16,.08);
  border: 1px solid rgba(196,82,16,.15);
  border-radius: 50px;
  padding: 3px 11px;
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline { background: #fff; }

.timeline-list {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
}
.timeline-list::before {
  content: '';
  position: absolute;
  left: calc(86px + 18px + 7px);
  top: 24px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), rgba(196,82,16,.15));
}

.tl-item {
  display: grid;
  grid-template-columns: 86px 14px 1fr;
  column-gap: 18px;
  padding-bottom: 40px;
  align-items: start;
}
.tl-item:last-child { padding-bottom: 0; }

.tl-year {
  text-align: right;
  font-size: 22px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  padding-top: 2px;
  letter-spacing: -0.5px;
}

.tl-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--accent);
  margin-top: 3px;
  position: relative;
  z-index: 1;
  justify-self: center;
}

.tl-content {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 18px 22px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.tl-content h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}
.tl-content p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.8;
  margin: 0;
}

@media (max-width: 540px) {
  .tl-item { grid-template-columns: 54px 14px 1fr; column-gap: 12px; }
  .tl-year { font-size: 17px; }
  .timeline-list::before { left: calc(54px + 12px + 7px); }
}

/* ============================================================
   PRODUCTS
   ============================================================ */
.products { background: #fff; }

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.product-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 26px 28px;
  position: relative;
  overflow: hidden;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
  display: flex;
  flex-direction: column;
}
.product-card p { flex: 1; }
.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  padding: 7px 16px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(196,82,16,.07);
  border: 1px solid rgba(196,82,16,.18);
  border-radius: 50px;
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease);
  align-self: flex-start;
}
.product-link:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: translateX(3px);
}
.product-card::after {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary-mid));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--ease);
}
.product-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255,140,56,.30);
}
.product-card:hover::after { transform: scaleX(1); }

/* Highlight card */
.product-card--saas {
  background: linear-gradient(140deg, rgba(255,140,56,.05), rgba(255,140,56,.08));
  border-color: rgba(255,140,56,.30);
}

.product-icon-wrap {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(255,140,56,.14), rgba(255,140,56,.08));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.product-icon-wrap svg { width: 26px; height: 26px; color: var(--accent); }

.product-card h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
  line-height: 1.3;
}
.product-card p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 18px;
}
.product-tag {
  display: inline-block;
  font-size: 11px;
  color: var(--accent);
  background: rgba(255,140,56,.10);
  border-radius: 4px;
  padding: 3px 10px;
  font-weight: 600;
  letter-spacing: .3px;
}

/* ============================================================
   SOLUTIONS
   ============================================================ */
.solutions { background: var(--bg); }

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.sol-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 28px 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform var(--ease), box-shadow var(--ease);
  display: flex;
  flex-direction: column;
}
.sol-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow-lg);
}
.sol-num {
  font-size: 52px;
  font-weight: 900;
  color: var(--border);
  line-height: 1;
  margin-bottom: 14px;
  letter-spacing: -2px;
}
.sol-num--light { color: rgba(255,255,255,.25); }
.sol-card h3 {
  font-size: 19px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
}
.sol-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
  flex: 1;
}
.sol-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(196,82,16,.08);
  border: 1px solid rgba(196,82,16,.2);
  border-radius: 50px;
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease);
}
.sol-link:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: translateX(3px);
}

/* CTA solution card */
.sol-card--cta {
  background: linear-gradient(140deg, var(--primary), var(--primary-mid));
  border-color: transparent;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.sol-card--cta h3 { color: #fff; }
.sol-card--cta p  { color: rgba(255,255,255,.72); margin-bottom: 24px; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  background: linear-gradient(140deg, var(--primary) 0%, var(--primary-mid) 100%);
}

.contact-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 36px;
}

.contact-heading {
  font-size: clamp(40px, 5vw, 60px);
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 14px;
  letter-spacing: -1px;
}
.contact-text p { color: rgba(255,255,255,.72); font-size: 15px; }

.contact-box {
  flex-shrink: 0;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 20px;
  padding: 32px 48px;
  text-align: center;
  backdrop-filter: blur(4px);
}
.contact-label {
  font-size: 12px;
  color: rgba(255,255,255,.65);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.contact-phone {
  display: block;
  font-size: clamp(24px, 2.5vw, 32px);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.5px;
  line-height: 1;
  transition: color var(--ease);
}
.contact-phone:hover { color: var(--accent-light); }
.contact-hint {
  font-size: 12px;
  color: rgba(255,255,255,.5);
  margin-top: 10px;
}

.contact-addr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}
.contact-addr-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.13);
  border-radius: var(--radius);
  padding: 28px 30px;
  transition: background var(--ease);
}
.contact-addr-card:hover { background: rgba(255,255,255,.12); }
.contact-addr-icon {
  width: 36px;
  height: 36px;
  background: rgba(255,140,56,.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.contact-addr-icon svg { width: 18px; height: 18px; color: var(--accent-light); }
.contact-addr-card h4 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
  margin-bottom: 10px;
}
.contact-addr-card p {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  line-height: 1.7;
}
.contact-qr-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.contact-qr-card h4 { align-self: center; }
.contact-qr {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 8px;
  margin: 12px 0 10px;
  background: #fff;
  padding: 4px;
}
.contact-qr-card p {
  font-size: 13px;
  font-weight: 400;
  opacity: .7;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,.6);
  padding: 56px 0 28px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: 26px;
  gap: 24px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer-name    { font-size: 15px; font-weight: 700; color: #fff; }
.footer-name-en { font-size: 11px; color: rgba(255,255,255,.4); margin-top: 3px; }

.footer-nav { display: flex; gap: 28px; flex-wrap: wrap; }
.footer-nav a {
  font-size: 14px;
  color: rgba(255,255,255,.55);
  transition: color var(--ease);
}
.footer-nav a:hover { color: var(--accent-light); }

.footer-bottom {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
}
.footer-sep { color: rgba(255,255,255,.25); }

.beian-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: rgba(255,255,255,.55);
  transition: color var(--ease);
}
.beian-link:hover { color: var(--accent-light); }
.beian-link svg { width: 14px; height: 14px; flex-shrink: 0; }
.beian-icon { width: 16px; height: 16px; flex-shrink: 0; object-fit: contain; }

/* ============================================================
   SCROLL ANIMATION
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease calc(var(--delay, 0s)),
              transform .6s ease calc(var(--delay, 0s));
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Product page image blocks ---- */
.sol-product-img-wrap {
  margin: 28px auto;
  max-width: 720px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.sol-product-img-wrap img { width: 100%; height: auto; display: block; }
.sol-product-img-caption {
  font-size: 12px; color: var(--muted); text-align: center;
  padding: 10px 16px 12px; background: var(--bg);
  border-top: 1px solid var(--border);
}
.sol-feature-section { margin-bottom: 48px; }
.sol-feature-section > p { font-size: 14.5px; color: var(--muted); line-height: 1.85; margin-bottom: 20px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .products-grid  { grid-template-columns: repeat(2, 1fr); }
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }

  /* Mobile nav */
  .nav-menu {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 200;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    gap: 2px;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .nav-menu.open { display: flex; }
  .nav-link { padding: 11px 16px; font-size: 15px; }
  .nav-dropdown {
    position: static;
    transform: none !important;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--border);
    border-radius: 0;
    opacity: 1;
    visibility: visible;
    background: transparent;
    padding: 0 0 4px 12px;
    margin-top: 2px;
  }
  .nav-dropdown a { padding: 7px 8px; font-size: 13.5px; }
  .dropdown-caret { display: none; }

  .menu-btn  { display: flex; }
  .nav-phone span { display: none; }
  .nav-phone svg  { width: 18px; height: 18px; }

  /* Hero */
  .hero-title  { letter-spacing: 0; }
  .hero-desc   { font-size: 15px; margin-bottom: 28px; }

  /* Stats */
  .stats-bar  { padding: 36px 0; }
  .stat-label { font-size: 15px; margin-top: 8px; }

  /* About */
  .about-grid   { grid-template-columns: 1fr; gap: 40px; }
  .about-cards  { grid-template-columns: 1fr 1fr; }
  .about-emblem { font-size: 52px; letter-spacing: -2px; }

  /* Products & Solutions */
  .products-grid  { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: 1fr; }

  /* Contact */
  .contact-inner { flex-direction: column; gap: 28px; }
  .contact-box { width: 100%; padding: 24px 32px; }
  .contact-addr-grid { grid-template-columns: 1fr 1fr; }
  .contact-qr-card { grid-column: 1 / -1; flex-direction: row; gap: 20px; text-align: left; }
  .contact-qr-card h4 { align-self: flex-start; }
  .contact-qr { margin: 0; }

  /* Footer */
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 28px;
  }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; }
  .footer-sep { display: none; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section   { padding: 60px 0; }

  /* Hero */
  .hero { min-height: auto; padding-bottom: 48px; }
  .hero-desc { font-size: 14px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 280px; text-align: center; }

  /* Stats */
  .stats-bar  { padding: 28px 0; }
  .stats-grid { flex-wrap: wrap; }
  .stat-sep   { display: none; }
  .stat-item  { flex: 0 0 50%; padding: 12px 8px; }
  .stat-label { font-size: 13px; margin-top: 6px; }

  /* About */
  .about-cards  { grid-template-columns: 1fr; }
  .about-emblem { font-size: 40px; letter-spacing: -1px; }

  /* Timeline */
  .tl-content { padding: 14px 16px; }

  /* Contact */
  .contact-box { padding: 20px 22px; }
  .contact-addr-grid { grid-template-columns: 1fr; }
  .contact-qr-card {
    grid-column: unset;
    flex-direction: column;
    text-align: center;
  }
  .contact-qr { margin: 0 auto; }

  /* Footer */
  .footer-nav { flex-wrap: wrap; gap: 8px 16px; }
  .beian-link { font-size: 11px; }
}