/* ============================================
   久保田纯净水 - 品牌官网样式 v3
   设计：大气 · 蓝色调 · 稳定兼容
   ============================================ */

:root {
  --blue-deep:    #0a1628;
  --blue-dark:    #0d2137;
  --blue-mid:     #125d8a;
  --blue:         #1a8cc9;
  --blue-light:   #4db8e8;
  --blue-pale:    #a3d9f5;
  --blue-bg:      #e8f4fb;
  --white:        #fff;
  --gold:         #c9a84c;
  --gold-light:   #e8d08f;
  --text-dark:    #1a1a2e;
  --text-mid:     #334155;
  --text-light:   #8899aa;
  --shadow-sm:    0 2px 12px rgba(10,22,40,0.08);
  --shadow-md:    0 6px 30px rgba(10,22,40,0.12);
  --shadow-lg:    0 12px 50px rgba(10,22,40,0.18);
  --shadow-blue:  0 8px 40px rgba(18,93,138,0.25);
  --radius:       16px;
  --radius-sm:    10px;
  --transition:   0.35s cubic-bezier(0.25,0.46,0.45,0.94);
  --red-accent:   #c0392b;
  --red-light:    #e74c3c;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; font-size:16px; }
body {
  font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  color:var(--text-dark);
  background:var(--white);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a { text-decoration:none; color:inherit; }
ul { list-style:none; }
img { max-width:100%; display:block; }
::selection { background:rgba(77,184,232,0.25); color:var(--blue-deep); }
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:#f0f4f8; }
::-webkit-scrollbar-thumb { background:var(--blue-pale); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--blue-light); }

/* ===== 页面加载 ===== */
.page-loader {
  position:fixed; inset:0; z-index:10001;
  background:var(--blue-deep);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  transition:opacity 0.6s ease, visibility 0.6s ease;
}
.page-loader.hidden { opacity:0; visibility:hidden; pointer-events:none; }
.loader-water { position:relative; width:80px; height:80px; margin-bottom:28px; }
.loader-drop {
  position:absolute; top:0; left:50%; transform:translateX(-50%);
  width:14px; height:20px;
  background:var(--blue-light);
  border-radius:50% 50% 50% 50% / 60% 60% 40% 40%;
  animation:loaderDrop 1.4s ease-in-out infinite;
}
.loader-ripple {
  position:absolute; bottom:10px; left:50%; transform:translateX(-50%);
  width:40px; height:4px;
  background:rgba(77,184,232,0.3);
  border-radius:50%;
  animation:loaderRipple 1.4s ease-in-out infinite;
}
@keyframes loaderDrop {
  0%,100% { top:0; opacity:1; transform:translateX(-50%) scale(1); }
  50% { top:40px; opacity:0.6; transform:translateX(-50%) scale(0.7); }
}
@keyframes loaderRipple {
  0%,100% { width:20px; opacity:0.2; }
  50% { width:60px; opacity:0.7; }
}
.loader-text {
  font-size:1.3rem; letter-spacing:12px;
  color:rgba(255,255,255,0.6);
  animation:loaderPulse 1.4s ease-in-out infinite;
}
@keyframes loaderPulse {
  0%,100% { opacity:0.4; }
  50% { opacity:1; }
}

/* ===== 导航栏 ===== */
.navbar {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  padding:18px 0;
  transition:all 0.5s cubic-bezier(0.25,0.46,0.45,0.94);
}
.navbar.scrolled {
  background:rgba(10,22,40,0.94);
  backdrop-filter:blur(30px);
  -webkit-backdrop-filter:blur(30px);
  padding:12px 0;
  box-shadow:0 4px 40px rgba(0,0,0,0.4);
}
.nav-container {
  max-width:1280px; margin:0 auto; padding:0 40px;
  display:flex; align-items:center; justify-content:space-between;
}
.nav-logo { display:flex; flex-direction:column; align-items:center; }
.logo-text {
  font-size:1.55rem; font-weight:700; color:var(--white); letter-spacing:4px;
  transition:var(--transition);
}
.nav-logo:hover .logo-text { text-shadow:0 0 30px rgba(77,184,232,0.6); }
.logo-sub {
  font-size:0.6rem; color:var(--blue-pale); letter-spacing:3px; margin-top:-2px;
}
.nav-menu { display:flex; gap:28px; }
.nav-link {
  color:rgba(255,255,255,0.78); font-size:0.88rem; font-weight:400;
  letter-spacing:1px; padding:6px 0; position:relative; transition:var(--transition);
}
.nav-link::after {
  content:''; position:absolute; bottom:-2px; left:50%;
  transform:translateX(-50%) scaleX(0);
  width:20px; height:2px; background:var(--blue-light); border-radius:2px;
  transition:transform 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
}
.nav-link:hover, .nav-link.active { color:var(--white); }
.nav-link:hover::after, .nav-link.active::after { transform:translateX(-50%) scaleX(1); }

.nav-toggle { display:none; flex-direction:column; gap:5px; cursor:pointer; z-index:1001; }
.nav-toggle span { width:26px; height:2px; background:var(--white); border-radius:2px; transition:all 0.4s; }
.nav-toggle.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.nav-toggle.active span:nth-child(2) { opacity:0; }
.nav-toggle.active span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

/* ===== Hero ===== */
.hero {
  position:relative; width:100%; height:100vh; min-height:700px;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(160deg, #061220 0%, #091c33 25%, #0d2a48 50%, #113558 75%, #125d8a 100%);
  overflow:hidden;
}
.hero-overlay {
  position:absolute; inset:0;
  background:
    radial-gradient(ellipse at 25% 20%, rgba(18,93,138,0.4) 0%, transparent 60%),
    radial-gradient(ellipse at 75% 70%, rgba(77,184,232,0.3) 0%, transparent 55%),
    radial-gradient(ellipse at 50% 50%, rgba(10,22,40,0.5) 0%, transparent 80%);
  animation:overlayPulse 8s ease-in-out infinite;
}
@keyframes overlayPulse {
  0%,100% { opacity:1; }
  50% { opacity:0.8; }
}

.hero-water {
  position:absolute; inset:0; pointer-events:none;
  background:repeating-linear-gradient(0deg, transparent, transparent 80px, rgba(255,255,255,0.015) 80px, rgba(255,255,255,0.015) 81px);
  animation:waterFlow 10s linear infinite;
}
@keyframes waterFlow {
  from { transform:translateY(0); }
  to { transform:translateY(81px); }
}

.hero-particles {
  position:absolute; inset:0; overflow:hidden; pointer-events:none;
}
.particle {
  position:absolute; border-radius:50%;
  background:rgba(163,217,245,0.7);
  box-shadow:0 0 6px rgba(163,217,245,0.4);
  animation:floatUp linear infinite;
}
@keyframes floatUp {
  0% { transform:translateY(100vh) scale(0) rotate(0deg); opacity:0; }
  10% { opacity:1; }
  90% { opacity:1; }
  100% { transform:translateY(-120px) scale(1.5) rotate(360deg); opacity:0; }
}

.hero-content {
  position:relative; z-index:3; text-align:center; padding:0 40px; max-width:900px;
}
.hero-title { display:flex; flex-direction:column; gap:8px; margin-bottom:32px; }
.title-line {
  font-size:clamp(2rem, 5.5vw, 3.8rem); font-weight:200;
  color:var(--white); letter-spacing:8px;
  opacity:0; transform:translateY(40px);
  animation:titleReveal 1s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}
.title-line:nth-child(1) { animation-delay:0.6s; }
.title-line.accent {
  font-size:clamp(3.2rem, 8vw, 6rem); font-weight:700; letter-spacing:20px;
  text-shadow:0 0 80px rgba(77,184,232,0.6), 0 0 140px rgba(18,93,138,0.4);
  animation-delay:1s;
}
.title-line:nth-child(3) { animation-delay:1.4s; }
@keyframes titleReveal {
  0% { opacity:0; transform:translateY(40px); filter:blur(10px); }
  100% { opacity:1; transform:translateY(0); filter:blur(0); }
}

.hero-desc {
  font-size:1.05rem; color:rgba(255,255,255,0.75); line-height:2;
  margin-bottom:48px; font-weight:300; letter-spacing:2px;
  opacity:0; transform:translateY(40px);
  animation:titleReveal 1s ease forwards;
  animation-delay:1.8s;
}
.hero-desc .highlight {
  color:var(--gold-light); font-weight:700; font-size:1.25rem;
  display:inline-block;
  animation:highlightPulse 2s ease-in-out infinite;
}
@keyframes highlightPulse {
  0%,100% { text-shadow:0 0 10px rgba(201,168,76,0.4); }
  50% { text-shadow:0 0 30px rgba(201,168,76,0.8), 0 0 60px rgba(201,168,76,0.3); }
}

.hero-btns {
  display:flex; gap:24px; justify-content:center; flex-wrap:wrap;
  opacity:0; transform:translateY(40px);
  animation:titleReveal 1s ease forwards;
  animation-delay:2.2s;
}

.btn {
  display:inline-block; padding:14px 46px; border-radius:50px;
  font-size:0.92rem; font-weight:500; letter-spacing:3px;
  cursor:pointer; transition:all 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
  border:none; position:relative; overflow:hidden;
}
.btn::after {
  content:''; position:absolute; top:50%; left:50%;
  width:0; height:0; border-radius:50%;
  background:rgba(255,255,255,0.2);
  transform:translate(-50%,-50%); transition:width 0.6s, height 0.6s;
}
.btn:active::after { width:400px; height:400px; }

.btn-primary {
  background:linear-gradient(135deg, var(--blue-mid), var(--blue));
  color:var(--white); box-shadow:var(--shadow-blue);
}
.btn-primary:hover {
  transform:translateY(-4px);
  box-shadow:0 16px 60px rgba(18,93,138,0.5);
  background:linear-gradient(135deg, var(--blue), var(--blue-light));
}
.btn-outline {
  background:transparent; color:var(--white);
  border:1.5px solid rgba(255,255,255,0.35);
}
.btn-outline:hover {
  border-color:var(--white); background:rgba(255,255,255,0.1);
  transform:translateY(-4px);
}

.hero-scroll {
  position:absolute; bottom:100px; left:50%; transform:translateX(-50%);
  color:rgba(255,255,255,0.5); font-size:0.8rem; letter-spacing:2px;
  display:flex; flex-direction:column; align-items:center; gap:8px;
  animation:bounceDown 2s infinite; z-index:2;
}
@keyframes bounceDown {
  0%,100% { transform:translateX(-50%) translateY(0); }
  50% { transform:translateX(-50%) translateY(14px); }
}

.hero-wave { position:absolute; bottom:0; left:0; width:100%; z-index:1; line-height:0; }
.hero-wave svg { width:100%; height:60px; display:block; }

/* ===== Section Common ===== */
.section { padding:100px 40px; position:relative; }
.section-header { text-align:center; margin-bottom:64px; }
.section-header.light { color:var(--white); }
.section-header.light .section-subtitle { color:rgba(255,255,255,0.7); }
.section-title {
  font-size:clamp(1.8rem, 3.5vw, 2.5rem); font-weight:600;
  letter-spacing:6px; margin-bottom:12px; color:var(--text-dark);
}
.section-header.light .section-title { color:var(--white); }
.section-title.left { text-align:left; }
.section-subtitle { color:var(--text-light); font-size:1rem; letter-spacing:2px; font-weight:300; }
.section-line {
  width:50px; height:3px;
  background:linear-gradient(90deg, var(--blue-mid), var(--blue-light));
  margin:16px auto 0; border-radius:3px;
}
.section-line.left { margin-left:0; }
.section-header.light .section-line { background:linear-gradient(90deg, var(--gold), var(--gold-light)); }

/* ===== Products ===== */
.products { background:linear-gradient(180deg, #f0f8ff 0%, #fff 100%); }
.products-grid {
  display:grid; grid-template-columns:repeat(4, 1fr); gap:30px;
  max-width:1200px; margin:0 auto;
}
.product-card {
  background:var(--white); border-radius:var(--radius); padding:40px 24px 32px;
  text-align:center; position:relative;
  box-shadow:var(--shadow-sm); transition:all 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
  border:1px solid rgba(18,93,138,0.06); overflow:hidden;
}
.product-card:hover { transform:translateY(-10px); box-shadow:var(--shadow-lg); }
.product-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:4px;
  background:linear-gradient(90deg, var(--blue-mid), var(--blue-light));
  transform:scaleX(0); transition:transform 0.5s;
}
.product-card:hover::before { transform:scaleX(1); }
.product-card.featured {
  border:2px solid var(--blue-pale); box-shadow:0 0 30px rgba(18,93,138,0.1);
}
.product-badge {
  position:absolute; top:14px; right:-28px;
  background:linear-gradient(135deg, var(--gold), var(--gold-light));
  color:#fff; padding:5px 36px; font-size:0.75rem; font-weight:700;
  transform:rotate(45deg); letter-spacing:1px; z-index:3;
  animation:badgeShine 3s ease-in-out infinite;
}
@keyframes badgeShine {
  0%,100% { filter:brightness(1); }
  50% { filter:brightness(1.3); }
}

.product-image { height:180px; display:flex; align-items:center; justify-content:center; margin-bottom:24px; }
.product-bottle { position:relative; transition:transform 0.4s; }
.product-card:hover .product-bottle { transform:translateY(-6px); }
.bottle-body {
  width:64px; height:120px;
  background:linear-gradient(180deg, rgba(77,184,232,0.4) 0%, rgba(26,140,201,0.3) 40%, rgba(18,93,138,0.35) 100%);
  border-radius:16px 16px 8px 8px;
  border:2px solid rgba(26,140,201,0.5);
  position:relative; display:flex; align-items:center; justify-content:center;
  box-shadow:inset 0 20px 40px rgba(255,255,255,0.2), 0 8px 24px rgba(18,93,138,0.2);
  overflow:hidden;
}
.bottle-body::before {
  content:''; position:absolute; top:-30%; left:-20%; width:60%; height:160%;
  background:linear-gradient(180deg, transparent 0%, rgba(255,255,255,0.25) 40%, transparent 60%);
  transform:rotate(15deg);
  animation:bottleShine 3s ease-in-out infinite;
}
@keyframes bottleShine {
  0%,100% { transform:rotate(15deg) translateY(-10%); }
  50% { transform:rotate(15deg) translateY(10%); }
}
.bottle-350 .bottle-body { width:56px; height:100px; }
.bottle-550 .bottle-body { width:64px; height:130px; }
.bottle-1500 .bottle-body { width:80px; height:155px; border-radius:20px 20px 10px 10px; }
.bottle-bucket .bottle-body { width:90px; height:140px; border-radius:14px; }
.bottle-body.barrel { background:linear-gradient(180deg, rgba(77,184,232,0.45) 0%, rgba(18,93,138,0.4) 100%); }

.bottle-cap {
  width:22px; height:16px; background:linear-gradient(180deg, #1a8cc9, #125d8a);
  border-radius:4px 4px 0 0; margin:0 auto; transition:transform 0.4s;
}
.product-card:hover .bottle-cap { transform:translateY(-2px); }
.bottle-1500 .bottle-cap { width:28px; height:20px; }
.barrel-cap { width:34px; height:14px; border-radius:4px 4px 0 0; }
.bottle-label {
  font-size:0.75rem; font-weight:700; color:var(--blue-mid);
  letter-spacing:2px; position:relative; z-index:1;
}

.product-info h3 { font-size:1.1rem; font-weight:600; margin-bottom:8px; letter-spacing:1px; }
.product-info p { font-size:0.85rem; color:var(--text-light); margin-bottom:12px; }
.product-price { font-size:1.2rem; font-weight:700; color:var(--blue); transition:color 0.3s; }
.product-card:hover .product-price { color:var(--blue-mid); }

/* ===== Quality ===== */
.quality {
  background:linear-gradient(160deg, #071525 0%, #0a1e32 35%, #0d243d 65%, #102c4a 100%);
  position:relative; overflow:hidden;
}
.quality-bg {
  position:absolute; inset:0;
  background:
    radial-gradient(ellipse at 20% 60%, rgba(18,93,138,0.25) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(77,184,232,0.15) 0%, transparent 45%);
  pointer-events:none;
}
.quality-grid {
  display:grid; grid-template-columns:repeat(4, 1fr); gap:28px;
  max-width:1200px; margin:0 auto; position:relative; z-index:1;
}
.quality-card {
  background:rgba(255,255,255,0.03); border:1px solid rgba(255,255,255,0.06);
  border-radius:var(--radius); padding:48px 28px 36px; text-align:center;
  position:relative; transition:all 0.5s; overflow:hidden;
}
.quality-card:hover {
  background:rgba(255,255,255,0.07); border-color:rgba(255,255,255,0.15);
  box-shadow:0 10px 50px rgba(0,0,0,0.3);
  transform:translateY(-6px);
}
.quality-icon {
  width:76px; height:76px; border-radius:50%;
  background:rgba(77,184,232,0.12);
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 24px; font-size:1.8rem;
  color:var(--blue-light); transition:all 0.5s;
}
.quality-card:hover .quality-icon {
  background:rgba(77,184,232,0.25);
  box-shadow:0 0 50px rgba(77,184,232,0.25);
  transform:translateY(-4px);
}
.quality-card h3 {
  color:var(--white); font-size:1.15rem; font-weight:600;
  margin-bottom:12px; letter-spacing:2px;
}
.quality-card p { color:rgba(255,255,255,0.55); font-size:0.88rem; line-height:1.8; }
.quality-num {
  position:absolute; top:16px; right:24px;
  font-size:3.5rem; font-weight:800;
  color:rgba(255,255,255,0.03); letter-spacing:4px; pointer-events:none;
  transition:color 0.5s;
}
.quality-card:hover .quality-num { color:rgba(255,255,255,0.08); }

/* ===== Anti-Mineral 反矿泉水 ===== */
.anti-mineral {
  background:linear-gradient(180deg, #fcfdfe 0%, #f4f8fc 100%);
  position:relative; overflow:hidden;
}
.anti-title { color:var(--text-dark); }
.anti-sub { color:#7f8c8d; letter-spacing:4px; }
.anti-line { background:linear-gradient(90deg, var(--red-accent), var(--red-light), var(--red-accent)) !important; }

.anti-container { max-width:1100px; margin:0 auto; }

.anti-manifesto { text-align:center; margin-bottom:60px; }
.anti-quote-mark { font-size:7rem; color:rgba(192,57,43,0.06); font-family:Georgia,serif; line-height:0.5; margin-bottom:-10px; }
.anti-quote {
  font-size:1.5rem; font-weight:400; color:var(--text-dark);
  letter-spacing:3px; line-height:1.8;
}
.anti-em { color:var(--red-accent); font-weight:700; }

.anti-arguments { display:flex; flex-direction:column; gap:28px; margin-bottom:60px; }
.anti-arg {
  display:flex; gap:24px; padding:32px 30px;
  background:var(--white); border-radius:var(--radius);
  border-left:4px solid var(--red-accent);
  box-shadow:0 2px 16px rgba(0,0,0,0.03);
  transition:all 0.4s;
}
.anti-arg:hover { box-shadow:0 6px 30px rgba(192,57,43,0.08); transform:translateX(4px); }
.anti-arg-icon {
  flex-shrink:0; width:52px; height:52px;
  border-radius:12px; background:rgba(231,76,60,0.07);
  display:flex; align-items:center; justify-content:center;
  font-size:1.3rem; color:var(--red-accent);
}
.anti-arg-content h3 { font-size:1.05rem; font-weight:700; color:var(--text-dark); margin-bottom:8px; letter-spacing:1px; }
.anti-arg-content p { font-size:0.9rem; color:var(--text-mid); line-height:1.9; }
.anti-arg-content strong { color:var(--red-accent); }

.anti-compare { margin-bottom:60px; }
.anti-compare-title { text-align:center; font-size:1.2rem; font-weight:700; margin-bottom:24px; letter-spacing:3px; }
.anti-table-wrap { overflow-x:auto; border-radius:var(--radius); box-shadow:var(--shadow-md); }
.anti-table { width:100%; border-collapse:collapse; background:var(--white); }
.anti-table thead { background:linear-gradient(135deg, var(--blue-deep), var(--blue-dark)); }
.anti-table th {
  padding:14px 18px; color:var(--white); font-size:0.9rem;
  font-weight:600; letter-spacing:2px; text-align:center;
}
.anti-table td {
  padding:14px 18px; font-size:0.88rem; color:var(--text-mid);
  border-bottom:1px solid #f0f4f8; text-align:center; line-height:1.6;
}
.anti-table tbody tr:hover td { background:#f8fbfe; }
.anti-table .col-pure { background:rgba(26,140,201,0.025); color:var(--blue-mid); font-weight:500; }
.anti-table .col-mineral { color:#7f8c8d; }
.tag-safe {
  display:inline-block; padding:2px 12px;
  background:rgba(26,140,201,0.08); border-radius:20px;
  font-size:0.8rem; font-weight:600; color:var(--blue); letter-spacing:1px;
}

.anti-conclusion { text-align:center; }
.anti-conclusion-box {
  display:inline-block; max-width:700px; padding:44px 50px;
  background:linear-gradient(135deg, var(--blue-deep), #0e1f35);
  border-radius:var(--radius);
  border:1px solid rgba(192,57,43,0.2);
  box-shadow:0 8px 40px rgba(192,57,43,0.06);
}
.anti-conclusion-box h3 { font-size:1.3rem; color:var(--white); letter-spacing:4px; margin-bottom:18px; font-weight:600; }
.anti-conclusion-box p { color:rgba(255,255,255,0.7); line-height:2.1; font-size:1rem; letter-spacing:1px; }
.anti-conclusion-box strong { color:var(--red-light); }
.anti-final { color:var(--blue-light) !important; font-size:1.1rem; font-weight:600; letter-spacing:3px; }

/* ===== Stats ===== */
.stats { padding:90px 40px; }
.stats-container {
  max-width:1080px; margin:0 auto;
  display:grid; grid-template-columns:repeat(4, 1fr); gap:40px; text-align:center;
}
.stat-item { padding:20px; transition:transform 0.4s; }
.stat-item:hover { transform:translateY(-6px); }
.stat-icon-inner { font-size:1.3rem; color:var(--blue-light); margin-bottom:10px; }
.stat-number {
  font-size:3.5rem; font-weight:800;
  background:linear-gradient(135deg, var(--blue-mid), var(--blue-light));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text; line-height:1.1;
}
.stat-label { font-size:0.9rem; color:var(--text-light); margin-top:8px; letter-spacing:1px; }

/* ===== About ===== */
.about { background:linear-gradient(180deg, #fff 0%, #f8fbfe 100%); }
.about-container {
  max-width:1200px; margin:0 auto;
  display:grid; grid-template-columns:1fr 1fr; gap:80px; align-items:center;
}
.about-img-placeholder {
  width:100%; max-width:440px; aspect-ratio:1;
  background:linear-gradient(160deg, #e8f4fb, #d0ebf8);
  border-radius:24px;
  display:flex; align-items:center; justify-content:center;
  font-size:7rem; color:var(--blue);
  box-shadow:0 20px 60px rgba(18,93,138,0.1);
  margin:0 auto;
}
.about-content { display:flex; flex-direction:column; gap:16px; }
.about-text {
  color:var(--text-mid); font-size:0.95rem; line-height:2;
  letter-spacing:0.5px; padding-left:14px; border-left:2px solid transparent;
  transition:border-color 0.4s;
}
.about-text:hover { border-left-color:var(--blue-pale); }
.about-text strong { color:var(--blue-mid); font-size:1rem; }

/* ===== Contact ===== */
.contact { background:linear-gradient(180deg, #f0f8ff 0%, #e0eff9 100%); }
.contact-container {
  max-width:1100px; margin:0 auto;
  display:grid; grid-template-columns:1fr 1.2fr; gap:60px;
}
.contact-info { display:flex; flex-direction:column; gap:28px; }
.contact-item {
  display:flex; gap:18px; align-items:flex-start;
  padding:16px; border-radius:var(--radius-sm); transition:all 0.4s;
}
.contact-item:hover { background:var(--white); box-shadow:var(--shadow-sm); transform:translateX(4px); }
.contact-icon {
  width:48px; height:48px; border-radius:12px;
  background:var(--blue-glass);
  display:flex; align-items:center; justify-content:center;
  font-size:1.1rem; color:var(--blue); flex-shrink:0;
  transition:all 0.4s;
}
.contact-item:hover .contact-icon { background:var(--blue-mid); color:var(--white); box-shadow:0 6px 20px rgba(18,93,138,0.25); }
.contact-item h4 { font-size:0.92rem; color:var(--text-dark); margin-bottom:3px; letter-spacing:1px; }
.contact-item p { color:var(--text-light); font-size:0.88rem; }
.contact-form { display:flex; flex-direction:column; gap:16px; }
.contact-form .form-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.contact-form input, .contact-form textarea {
  width:100%; padding:14px 20px; background:var(--white);
  border:1.5px solid #dde8f0; border-radius:var(--radius-sm);
  font-size:0.9rem; font-family:inherit; outline:none;
  transition:all 0.3s; color:var(--text-dark);
}
.contact-form input:focus, .contact-form textarea:focus {
  border-color:var(--blue-light); box-shadow:0 0 0 3px rgba(77,184,232,0.06);
}
.contact-form textarea { resize:vertical; min-height:120px; }

/* ===== Footer ===== */
.footer { background:var(--blue-deep); color:var(--white); padding:60px 40px 0; }
.footer-container {
  max-width:1200px; margin:0 auto;
  display:grid; grid-template-columns:1.5fr 1fr 1fr; gap:60px;
  padding-bottom:50px; border-bottom:1px solid rgba(255,255,255,0.06);
}
.footer-brand h3 { font-size:1.5rem; letter-spacing:6px; margin-bottom:4px; }
.footer-brand p { color:rgba(255,255,255,0.45); font-size:0.8rem; letter-spacing:1px; }
.footer-slogan { margin-top:12px; font-size:0.88rem !important; color:rgba(255,255,255,0.3) !important; }
.footer-links h4, .footer-qr h4 { font-size:0.92rem; letter-spacing:2px; margin-bottom:18px; font-weight:500; }
.footer-links ul { display:flex; flex-direction:column; gap:9px; }
.footer-links a { color:rgba(255,255,255,0.45); font-size:0.85rem; transition:all 0.3s; display:inline-block; }
.footer-links a:hover { color:var(--blue-light); transform:translateX(4px); }
.qr-placeholder {
  width:120px; height:120px;
  background:rgba(255,255,255,0.04); border-radius:var(--radius-sm);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:8px;
  border:1px solid rgba(255,255,255,0.06); transition:all 0.4s;
}
.qr-placeholder:hover { background:rgba(255,255,255,0.08); border-color:rgba(77,184,232,0.3); }
.qr-placeholder .qr-icon { font-size:2.2rem; color:rgba(255,255,255,0.2); }
.qr-placeholder span { font-size:0.68rem; color:rgba(255,255,255,0.35); letter-spacing:1px; }
.footer-bottom { text-align:center; padding:22px 0; }
.footer-bottom p { color:rgba(255,255,255,0.25); font-size:0.78rem; letter-spacing:1px; }

/* ===== Scroll Reveal ===== */
[data-aos].aos-hidden {
  opacity:0; transform:translateY(40px);
  transition:opacity 0.8s ease, transform 0.8s ease;
}
[data-aos].aos-visible { opacity:1; transform:translateY(0); }

/* ===== Responsive ===== */
@media (max-width:1024px) {
  .products-grid, .quality-grid { grid-template-columns:repeat(2, 1fr); }
  .stats-container { grid-template-columns:repeat(2, 1fr); gap:30px; }
  .about-container { grid-template-columns:1fr; gap:50px; }
  .contact-container { grid-template-columns:1fr; }
  .anti-arg { flex-direction:column; gap:16px; }
  .anti-conclusion-box { padding:36px 28px; }
}
@media (max-width:768px) {
  .nav-menu {
    position:fixed; top:0; right:-100%; width:280px; height:100vh;
    background:rgba(10,22,40,0.98); backdrop-filter:blur(30px);
    flex-direction:column; padding:100px 40px; gap:28px;
    transition:right 0.5s cubic-bezier(0.25,0.46,0.45,0.94); z-index:1000;
  }
  .nav-menu.active { right:0; }
  .nav-toggle { display:flex; }
  .products-grid, .quality-grid { grid-template-columns:1fr; max-width:400px; margin:0 auto; }
  .stats-container { grid-template-columns:1fr 1fr; }
  .stat-number { font-size:2.5rem; }
  .hero-btns { flex-direction:column; align-items:center; }
  .footer-container { grid-template-columns:1fr; text-align:center; gap:36px; }
  .qr-placeholder { margin:0 auto; }
  .contact-form .form-row { grid-template-columns:1fr; }
  .anti-quote { font-size:1.2rem; }
  .anti-conclusion-box { padding:28px 20px; }
  .section { padding:70px 24px; }
}