/* =====================================================
   乾元数创 · 企业官网主样式
   玻璃拟态 + 喷泉建筑造型 + 弹簧回弹动效
   ===================================================== */

/* ---- Google Fonts & Variables ---- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Syne:wght@400;500;600;700;800&family=JetBrains+Mono:wght@300;400;500&family=Noto+Serif+SC:wght@400;600;700;900&display=swap');

:root {
  /* Brand Colors */
  --gold:        #C9A96E;
  --gold-light:  #E8D5A3;
  --gold-dark:   #8A6B3A;
  --ink:         #0A0C12;
  --ink-deep:    #050709;
  --ink-mid:     #141820;
  --ink-soft:    #1E2330;

  /* Glass */
  --glass-bg:    rgba(255,255,255,0.04);
  --glass-bg2:   rgba(255,255,255,0.07);
  --glass-bg3:   rgba(201,169,110,0.08);
  --glass-border: rgba(201,169,110,0.18);
  --glass-border2:rgba(255,255,255,0.10);
  --glass-blur:  blur(20px);
  --glass-blur2: blur(40px);

  /* Text */
  --text-primary: rgba(255,255,255,0.92);
  --text-secondary: rgba(255,255,255,0.55);
  --text-muted:   rgba(255,255,255,0.30);
  --text-gold:    #C9A96E;

  /* Spring Animation */
  --spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --spring-soft: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Spacing */
  --section-py: 120px;
  --container-max: 1240px;
  --radius: 20px;
  --radius-lg: 32px;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Space Grotesk', 'Noto Serif SC', sans-serif;
  background-color: var(--ink-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--ink-deep); }
::-webkit-scrollbar-thumb { background: var(--gold-dark); border-radius: 2px; }

/* ---- Selection ---- */
::selection { background: rgba(201,169,110,0.3); color: #fff; }

/* =====================================================
   BACKGROUND: Fountain Architecture Canvas
   ===================================================== */
.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

/* Radial glow spots */
.bg-canvas::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 1100px;
  height: 1100px;
  background: radial-gradient(ellipse at center,
    rgba(201,169,110,0.18) 0%,
    rgba(201,169,110,0.07) 35%,
    transparent 68%);
  animation: bgPulse 8s ease-in-out infinite;
}
.bg-canvas::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: 20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(ellipse,
    rgba(120,160,255,0.07) 0%,
    transparent 60%);
  animation: bgPulse 12s ease-in-out infinite reverse;
}

@keyframes bgPulse {
  0%,100% { opacity: 0.6; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.1); }
}

/* Grid lines */
.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201,169,110,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,169,110,0.055) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 0%, transparent 100%);
}

/* ==========================================================
   HONEYCOMB BACKGROUND — 极简蜂窝背景
   只保留稀疏的六边形线框，减少视觉噪音
   ========================================================== */

/* 蜂窝背景容器 */
.honeycomb-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  /* 整体遮罩：顶部和底部淡出，视觉更干净 */
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, black 20%, transparent 100%);
}

/* 单个六边形 — 只显示细边线，不做填充 */
.hex-cell {
  position: absolute;
  pointer-events: none;
  opacity: var(--hopa, 1);
  animation: hexPulse var(--hdur, 8s) ease-in-out infinite;
  animation-delay: var(--hdelay, 0s);
}
/* 用 ::after 只画一条细描边 */
.hex-cell::after {
  content: '';
  position: absolute;
  inset: 0;
  clip-path: polygon(50% 1%, 98% 26%, 98% 74%, 50% 99%, 2% 74%, 2% 26%);
  background: transparent;
  border: 1px solid rgba(201,169,110, var(--hstroke, 0.10));
  /* 用 box-shadow 模拟外描边（clip-path 截掉了 border，这里用 inset shadow 代替） */
  box-shadow: inset 0 0 0 1px rgba(201,169,110, var(--hstroke, 0.10));
}
/* 极少数高亮格加淡填充 */
.hex-cell.lit::before {
  content: '';
  position: absolute;
  inset: 2px;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: rgba(201,169,110, var(--hopa-fill, 0.05));
}

@keyframes hexPulse {
  0%, 100% { opacity: var(--hopa, 0.5); }
  50%       { opacity: calc(var(--hopa, 0.5) * 1.8); }
}

/* 移除扫光线（减少凌乱感） */
.hex-scan-line { display: none; }

/* Hero右侧蜂窝矩阵 */
.hero-honeycomb {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 52%;
  max-width: 680px;
  height: 620px;
  pointer-events: none;
  animation: fadeIn 1.2s var(--ease-out) 0.4s forwards;
  opacity: 0;
  overflow: hidden;
}

/* 六边形网格单元（hero内） */
.hc-cell {
  position: absolute;
  width: var(--s, 80px);
  height: calc(var(--s, 80px) * 1.1547);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: rgba(201,169,110, var(--hbg, 0.04));
  border: none;
  transition: background 0.3s;
  animation: hcFloat var(--hcDur, 5s) ease-in-out infinite;
  animation-delay: var(--hcDel, 0s);
}
/* 内描边层 */
.hc-cell::after {
  content: '';
  position: absolute;
  inset: 1.5px;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: transparent;
  box-shadow: inset 0 0 0 1px rgba(201,169,110, var(--hborder, 0.18));
}
/* 高亮单元光斑 */
.hc-cell.glow {
  background: rgba(201,169,110, 0.10);
  animation: hcGlow var(--hcDur, 4s) ease-in-out infinite;
}
.hc-cell.glow::before {
  content: '';
  position: absolute;
  inset: 20%;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: radial-gradient(ellipse, rgba(201,169,110,0.35) 0%, transparent 70%);
  animation: hcGlowInner 3s ease-in-out infinite;
  animation-delay: var(--hcDel, 0s);
}
@keyframes hcFloat {
  0%,100% { transform: translateY(0) scale(1); }
  50%     { transform: translateY(-4px) scale(1.02); }
}
@keyframes hcGlow {
  0%,100% { background: rgba(201,169,110,0.08); }
  50%     { background: rgba(201,169,110,0.16); }
}
@keyframes hcGlowInner {
  0%,100% { opacity: 0.5; }
  50%     { opacity: 1; }
}

/* 中心大六边形（hero核心装饰） */
.hc-core {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 220px;
  height: calc(220px * 1.1547);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: rgba(201,169,110,0.06);
  animation: hcCoreGlow 4s ease-in-out infinite;
  z-index: 2;
}
.hc-core::after {
  content: '';
  position: absolute;
  inset: 2px;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  border: 1px solid rgba(201,169,110,0.3);
  background: rgba(201,169,110,0.03);
}
.hc-core-logo {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: auto;
  z-index: 3;
  opacity: 0.25;
  filter: brightness(0) invert(1) sepia(1) saturate(2) hue-rotate(10deg);
}
@keyframes hcCoreGlow {
  0%,100% { background: rgba(201,169,110,0.05); box-shadow: none; }
  50%     { background: rgba(201,169,110,0.12); box-shadow: 0 0 60px rgba(201,169,110,0.15); }
}

/* 六边形连接线 */
.hc-connector {
  position: absolute;
  background: linear-gradient(var(--cAngle,0deg), transparent, rgba(201,169,110,0.2), transparent);
  height: 1px;
  transform-origin: left center;
  animation: connectorFade 4s ease-in-out infinite;
  animation-delay: var(--cDel, 0s);
}
@keyframes connectorFade {
  0%,100% { opacity: 0.3; }
  50%     { opacity: 0.8; }
}

/* 旧喷泉样式 — 全部清空 */
.fountain-arcs, .arc, .fountain-tower,
.tower-shaft, .bowl, .bowl-base,
.jet, .jet-main, .glow-ring { display: none !important; }


/* Water droplets / Rising Particles */
.drops {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.drop {
  position: absolute;
  width: var(--size, 3px);
  height: var(--size, 3px);
  background: var(--color, var(--gold-light));
  border-radius: 50%;
  bottom: 0;
  animation: dropRise var(--dur, 4s) ease-out infinite;
  animation-delay: var(--delay, 0s);
  left: var(--x, 50%);
  opacity: 0;
  box-shadow: 0 0 var(--glow, 6px) var(--color, var(--gold-light));
  filter: blur(var(--blur, 0px));
}
.drop.large {
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  animation-name: dropRiseLarge;
}
@keyframes dropRise {
  0%   { bottom: -2%; opacity: 0;   transform: translateX(0) scale(1); }
  10%  { opacity: 1; }
  40%  { opacity: 0.75; }
  75%  { opacity: 0.3; }
  100% { bottom: 85%; opacity: 0;   transform: translateX(var(--dx, 40px)) scale(0.3); }
}
@keyframes dropRiseLarge {
  0%   { bottom: -2%; opacity: 0;   transform: translateX(0) scaleY(1.4) scaleX(0.7); }
  8%   { opacity: 0.9; transform: translateX(calc(var(--dx,40px)*0.1)) scaleY(1) scaleX(1); }
  50%  { opacity: 0.5; transform: translateX(calc(var(--dx,40px)*0.5)) scale(0.85); }
  100% { bottom: 80%; opacity: 0;   transform: translateX(var(--dx, 40px)) scale(0.2); }
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.navbar {
  position: fixed;
  /* 未滚动时离顶部 20px，给人「呼吸感」*/
  top: 20px;
  left: 0;
  right: 0;
  z-index: 1000;
  /* 左右留出「胶囊」间距，形成悬浮卡片感 */
  margin: 0 32px;
  padding: 0 32px;
  height: 72px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  /* 初始：轻微玻璃底色，无毛玻璃 */
  background: rgba(10,12,18,0.30);
  border: 1px solid rgba(201,169,110,0.10);
  transition: top 0.5s var(--ease-out),
              margin 0.5s var(--ease-out),
              padding 0.5s var(--ease-out),
              height 0.5s var(--ease-out),
              border-radius 0.5s var(--ease-out),
              background 0.4s ease,
              border-color 0.4s ease,
              box-shadow 0.4s ease;
}

/* 滚动后：紧贴顶部，全宽，毛玻璃强化 */
.navbar.scrolled {
  top: 0;
  margin: 0;
  padding: 0 40px;
  height: 68px;
  border-radius: 0;
  background: rgba(5,7,9,0.88);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border: none;
  border-bottom: 1px solid rgba(201,169,110,0.18);
  box-shadow: 0 4px 40px rgba(0,0,0,0.5),
              0 1px 0 rgba(201,169,110,0.12);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav-logo img {
  height: 72px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: filter 0.3s, height 0.5s var(--ease-out);
}
.navbar.scrolled .nav-logo img {
  filter: none;
  height: 60px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  font-family: 'Syne', 'Space Grotesk', sans-serif;
  letter-spacing: 0.04em;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.25s var(--spring-soft);
  letter-spacing: 0.02em;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: calc(100% - 24px);
  height: 1px;
  background: var(--gold);
  transition: transform 0.3s var(--spring);
}
.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}
.nav-links a:hover::after { transform: translateX(-50%) scaleX(1); }

.nav-cta {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark)) !important;
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: 10px !important;
  font-weight: 600 !important;
  transition: all 0.3s var(--spring-soft) !important;
  box-shadow: 0 4px 16px rgba(201,169,110,0.25) !important;
}
.nav-cta:hover {
  transform: translateY(-2px) scale(1.04) !important;
  box-shadow: 0 8px 28px rgba(201,169,110,0.4) !important;
}
.nav-cta::after { display: none !important; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 10px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(201,169,110,0.20);
  transition: all 0.3s var(--spring-soft);
  -webkit-tap-highlight-color: transparent;
}
.nav-hamburger:hover {
  background: rgba(201,169,110,0.10);
  border-color: rgba(201,169,110,0.35);
}
.nav-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.35s var(--spring);
  transform-origin: center;
}
.nav-hamburger.open {
  background: rgba(201,169,110,0.12);
  border-color: rgba(201,169,110,0.40);
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(0px, 7px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(0px, -7px); }

/* =====================================================
   GLASS CARD COMPONENT
   ===================================================== */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border2);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: all 0.4s var(--spring-soft);
}
.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(255,255,255,0.06) 0%,
    transparent 60%);
  pointer-events: none;
}
.glass-card:hover {
  background: var(--glass-bg2);
  border-color: var(--glass-border);
  transform: translateY(-6px) scale(1.01);
  box-shadow:
    0 20px 60px rgba(0,0,0,0.5),
    0 0 0 1px rgba(201,169,110,0.15),
    inset 0 1px 0 rgba(255,255,255,0.1);
}

.glass-card-gold {
  background: var(--glass-bg3);
  border-color: rgba(201,169,110,0.25);
}
.glass-card-gold:hover {
  border-color: rgba(201,169,110,0.5);
  box-shadow:
    0 20px 60px rgba(0,0,0,0.5),
    0 0 40px rgba(201,169,110,0.1);
}

/* =====================================================
   SPRING BUTTON
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.35s var(--spring-soft);
  letter-spacing: 0.02em;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background 0.2s;
}
.btn:active {
  transform: scale(0.95) !important;
  transition: all 0.1s ease !important;
}
.btn:active::after { background: rgba(255,255,255,0.1); }

.btn-primary {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  color: #fff;
  box-shadow: 0 6px 24px rgba(201,169,110,0.35);
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 14px 40px rgba(201,169,110,0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
}
.btn-outline:hover {
  background: var(--glass-bg2);
  border-color: var(--gold);
  color: var(--gold-light);
  transform: translateY(-3px) scale(1.02);
}

.btn-ghost {
  background: transparent;
  color: var(--gold);
  padding: 10px 20px;
  font-size: 14px;
}
.btn-ghost:hover { color: var(--gold-light); transform: translateX(4px); }
.btn-ghost svg, .btn-ghost .arrow { transition: transform 0.3s var(--spring); }
.btn-ghost:hover .arrow { transform: translateX(4px); }

/* =====================================================
   CONTAINER & SECTION
   ===================================================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px;
}

section {
  position: relative;
  z-index: 1;
}

.section-py { padding: var(--section-py) 0; }

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--glass-bg3);
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  font-family: 'Syne', 'Space Grotesk', sans-serif;
  color: var(--gold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}
.section-badge .dot {
  width: 6px; height: 6px;
  background: var(--gold);
  border-radius: 50%;
  animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.section-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.section-title .highlight {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 50%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-sub {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-top: 16px;
}

/* =====================================================
   HERO SECTION
   ===================================================== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 112px;  /* 为悬浮导航留出足够空间 */
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 0 120px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  background: var(--glass-bg3);
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gold-light);
  letter-spacing: 0.08em;
  margin-bottom: 32px;
  backdrop-filter: blur(12px);
  animation: slideDown 0.8s var(--spring-soft) forwards;
  opacity: 0;
  transform: translateY(-20px);
}
.hero-eyebrow .pulse-ring {
  position: relative;
  width: 8px; height: 8px;
}
.hero-eyebrow .pulse-ring::before,
.hero-eyebrow .pulse-ring::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--gold);
}
.hero-eyebrow .pulse-ring::after {
  animation: pulseRing 2s ease-out infinite;
  background: transparent;
  border: 1px solid var(--gold);
}
@keyframes pulseRing {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(2.5); opacity: 0; }
}

.hero-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(44px, 7vw, 88px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
  animation: slideUp 0.9s var(--spring-soft) 0.1s forwards;
  opacity: 0;
  transform: translateY(40px);
}
.hero-title .line-1 { display: block; color: var(--text-primary); }
.hero-title .line-2 {
  display: block;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 40%, #fff 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-title .line-3 { display: block; color: rgba(255,255,255,0.5); font-size: 0.55em; font-weight: 400; margin-top: 8px; letter-spacing: 0.05em; }

.hero-desc {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 48px;
  animation: slideUp 0.9s var(--spring-soft) 0.2s forwards;
  opacity: 0;
  transform: translateY(30px);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: slideUp 0.9s var(--spring-soft) 0.3s forwards;
  opacity: 0;
  transform: translateY(24px);
}


/* Hero honeycomb visual — replaces fountain tower */
.hero-visual {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 52%;
  max-width: 700px;
  pointer-events: none;
  animation: fadeIn 1.2s var(--ease-out) 0.4s forwards;
  opacity: 0;
}

/* Hero stats */
.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid rgba(255,255,255,0.07);
  animation: slideUp 0.9s var(--spring-soft) 0.45s forwards;
  opacity: 0;
  transform: translateY(20px);
}

.stat-item {}
.stat-num {
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 11px;
  font-family: 'Syne', sans-serif;
  color: var(--text-muted);
  margin-top: 6px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* =====================================================
   MARQUEE / TICKER
   ===================================================== */
.marquee-wrap {
  overflow: hidden;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  background: rgba(0,0,0,0.2);
  position: relative;
  z-index: 1;
}
.marquee-track {
  display: flex;
  gap: 0;
  animation: marqueeScroll 30s linear infinite;
  width: max-content;
}
.marquee-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 48px;
  font-size: 11px;
  font-weight: 500;
  font-family: 'Syne', sans-serif;
  color: var(--text-muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  white-space: nowrap;
}
.marquee-item .sep {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.5;
}
@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
#about {
  background: linear-gradient(180deg, transparent 0%, rgba(201,169,110,0.02) 50%, transparent 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-logo-display {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
}

.logo-glass-bg {
  position: absolute;
  inset: 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.logo-glass-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent 0%, rgba(201,169,110,0.05) 25%, transparent 50%);
  animation: rotateSlow 20s linear infinite;
}
@keyframes rotateSlow {
  to { transform: rotate(360deg); }
}

.about-logo-img {
  position: relative;
  z-index: 1;
  width: 300px;
  max-width: 100%;
  filter: drop-shadow(0 8px 32px rgba(201,169,110,0.3));
  animation: logoFloat 5s ease-in-out infinite;
}
@keyframes logoFloat {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.about-orbital {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(201,169,110,0.15);
  animation: orbit 15s linear infinite;
}
.about-orbital-1 {
  width: 340px; height: 340px;
  top: 50%; left: 50%;
  margin: -170px 0 0 -170px;
}
.about-orbital-2 {
  width: 440px; height: 440px;
  top: 50%; left: 50%;
  margin: -220px 0 0 -220px;
  animation-direction: reverse;
  animation-duration: 25s;
}

.orbital-dot {
  position: absolute;
  width: 8px; height: 8px;
  background: var(--gold);
  border-radius: 50%;
  top: -4px; left: 50%;
  margin-left: -4px;
  box-shadow: 0 0 12px var(--gold);
}

@keyframes orbit {
  to { transform: rotate(360deg); }
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}
.tag {
  padding: 6px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border2);
  border-radius: 100px;
  font-size: 12px;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
  transition: all 0.3s var(--spring-soft);
  cursor: default;
}
.tag:hover {
  border-color: var(--gold);
  color: var(--gold-light);
  transform: scale(1.05) translateY(-2px);
  background: var(--glass-bg3);
}

.about-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}

.info-item {
  padding: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border2);
  border-radius: var(--radius);
  transition: all 0.3s var(--spring-soft);
}
.info-item:hover {
  border-color: rgba(201,169,110,0.3);
  background: var(--glass-bg3);
  transform: translateY(-3px);
}
.info-label {
  font-size: 10px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 6px;
}
.info-value {
  font-size: 15px;
  font-family: 'Syne', sans-serif;
  color: var(--text-primary);
  font-weight: 600;
}

/* =====================================================
   CAPABILITY LAYERS (架构图)
   ===================================================== */
#capabilities {
  overflow: hidden;
}

.cap-layers {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 60px;
}

.cap-layer {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  align-items: stretch;
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.6s var(--spring-soft);
}
.cap-layer.visible {
  opacity: 1;
  transform: translateX(0);
}

.layer-label {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  padding-right: 24px;
  text-align: right;
  border-right: 2px solid var(--glass-border);
  position: relative;
}
.layer-label::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px; height: 10px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 16px var(--gold);
}
.layer-num {
  font-size: 10px;
  color: var(--gold);
  font-family: 'JetBrains Mono', 'Syne', monospace;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.layer-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}
.layer-name-en {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.layer-items {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.layer-item {
  flex: 1;
  min-width: 160px;
  padding: 20px 24px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border2);
  border-radius: var(--radius);
  transition: all 0.35s var(--spring-soft);
  cursor: default;
}
.layer-item:hover {
  background: var(--glass-bg3);
  border-color: rgba(201,169,110,0.3);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.layer-item-icon {
  font-size: 22px;
  margin-bottom: 10px;
}
.layer-item-title {
  font-size: 14px;
  font-weight: 600;
  font-family: 'Syne', sans-serif;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.layer-item-desc {
  font-size: 12px;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text-muted);
  line-height: 1.6;
}

/* =====================================================
   SOLUTIONS SECTION
   ===================================================== */
#solutions {
  background: linear-gradient(180deg, transparent 0%, rgba(10,12,18,0.8) 50%, transparent 100%);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}

.solution-card {
  padding: 36px 32px;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  display: block;
  transition: all 0.4s var(--spring-soft);
}
.solution-card::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s;
  background: linear-gradient(135deg,
    rgba(201,169,110,0.08) 0%,
    transparent 60%);
}
.solution-card:hover::after { opacity: 1; }
.solution-card:hover {
  transform: translateY(-10px) scale(1.01);
  box-shadow:
    0 30px 80px rgba(0,0,0,0.6),
    0 0 0 1px rgba(201,169,110,0.2),
    0 0 60px rgba(201,169,110,0.06);
}
.solution-card:active {
  transform: translateY(-4px) scale(0.99);
  transition: all 0.15s ease;
}

/* Featured card */
.solution-card.featured {
  grid-column: span 2;
  background: linear-gradient(135deg,
    rgba(201,169,110,0.1) 0%,
    rgba(201,169,110,0.03) 100%);
  border-color: rgba(201,169,110,0.25) !important;
}
.solution-card.featured .sol-icon {
  width: 64px; height: 64px;
  font-size: 28px;
}

.sol-num {
  font-size: 10px;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  color: var(--gold);
  letter-spacing: 0.2em;
  margin-bottom: 20px;
}
.sol-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--glass-bg3);
  border: 1px solid rgba(201,169,110,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
  transition: all 0.35s var(--spring-soft);
}
.solution-card:hover .sol-icon {
  background: rgba(201,169,110,0.15);
  border-color: rgba(201,169,110,0.4);
  transform: scale(1.1) rotate(5deg);
}
.sol-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}
.sol-title-en {
  font-size: 11px;
  font-family: 'Syne', sans-serif;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.sol-desc {
  font-size: 14px;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}
.sol-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.sol-tag {
  padding: 4px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 100px;
  font-size: 10px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.sol-arrow {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--gold);
  font-weight: 600;
  transition: all 0.3s var(--spring-soft);
}
.sol-arrow svg { transition: transform 0.3s var(--spring); }
.solution-card:hover .sol-arrow { gap: 10px; }
.solution-card:hover .sol-arrow svg { transform: translateX(4px); }

/* =====================================================
   PROCESS / HOW WE WORK
   ===================================================== */
#process {
  overflow: hidden;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  margin-top: 60px;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: linear-gradient(to right,
    transparent,
    var(--glass-border),
    var(--gold),
    var(--glass-border),
    transparent);
  z-index: 0;
}

.process-step {
  padding: 0 24px;
  text-align: center;
  position: relative;
  z-index: 1;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s var(--spring-soft);
}
.process-step.visible {
  opacity: 1;
  transform: translateY(0);
}

.step-circle {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  font-size: 26px;
  backdrop-filter: var(--glass-blur);
  transition: all 0.4s var(--spring-soft);
  position: relative;
}
.step-circle::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(201,169,110,0);
  transition: all 0.4s var(--spring-soft);
}
.process-step:hover .step-circle {
  background: var(--glass-bg3);
  border-color: var(--gold);
  transform: scale(1.1);
  box-shadow: 0 0 30px rgba(201,169,110,0.2);
}
.process-step:hover .step-circle::after {
  border-color: rgba(201,169,110,0.3);
  inset: -8px;
}

.step-num {
  position: absolute;
  top: -8px; right: -8px;
  width: 24px; height: 24px;
  background: var(--gold);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.step-desc {
  font-size: 13px;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text-muted);
  line-height: 1.65;
}

/* =====================================================
   TECH STACK
   ===================================================== */
#tech {
  background: rgba(0,0,0,0.2);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 60px;
}

.tech-item {
  padding: 24px 20px;
  text-align: center;
  border-radius: var(--radius);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border2);
  transition: all 0.35s var(--spring-soft);
  cursor: default;
}
.tech-item:hover {
  background: var(--glass-bg3);
  border-color: rgba(201,169,110,0.3);
  transform: translateY(-6px) scale(1.04);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}
.tech-icon { font-size: 28px; margin-bottom: 10px; display: block; }
.tech-name { font-size: 13px; font-weight: 600; font-family: 'Syne', sans-serif; color: var(--text-primary); margin-bottom: 4px; }
.tech-type { font-size: 10px; font-family: 'JetBrains Mono', monospace; color: var(--text-muted); letter-spacing: 0.08em; }

/* =====================================================
   CTA SECTION
   ===================================================== */
#cta {
  overflow: hidden;
}

.cta-box {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 80px 80px;
  text-align: center;
  overflow: hidden;
  background: linear-gradient(135deg,
    rgba(201,169,110,0.1) 0%,
    rgba(201,169,110,0.03) 50%,
    rgba(100,120,255,0.04) 100%);
  border: 1px solid rgba(201,169,110,0.2);
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(201,169,110,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  margin-bottom: 20px;
}
.cta-desc {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 48px;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-contact {
  margin-top: 40px;
  font-size: 15px;
  color: var(--text-muted);
}
.cta-contact a {
  color: var(--gold);
  text-decoration: none;
  transition: color 0.2s;
  font-weight: 500;
}
.cta-contact a:hover { color: var(--gold-light); }

/* =====================================================
   FOOTER
   ===================================================== */
footer {
  background: rgba(5,7,9,0.95);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 60px 0 32px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.footer-brand img {
  height: 80px;
  width: auto;
  margin-bottom: 20px;
  opacity: 0.9;
  filter: drop-shadow(0 4px 20px rgba(201,169,110,0.25));
}
.footer-brand p {
  font-size: 13px;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 280px;
}

.footer-col-title {
  font-size: 10px;
  font-weight: 600;
  font-family: 'Syne', sans-serif;
  color: var(--text-secondary);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 13px;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.25s var(--spring-soft);
}
.footer-links a:hover {
  color: var(--gold);
  padding-left: 6px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copy {
  font-size: 12px;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}
.footer-icp {
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  color: rgba(255,255,255,0.2);
}
.footer-icp a { color: inherit; text-decoration: none; transition: color 0.2s; }
.footer-icp a:hover { color: var(--text-muted); }

/* =====================================================
   ANIMATIONS (keyframes)
   ===================================================== */
@keyframes slideUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideDown {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  to { opacity: 1; }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s var(--spring-soft);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.7s var(--spring-soft);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.7s var(--spring-soft);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* Stagger children */
.stagger > * { opacity: 0; transform: translateY(20px); transition: all 0.5s var(--spring-soft); }
.stagger.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.2s; }
.stagger.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.3s; }
.stagger.visible > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.4s; }
.stagger.visible > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.5s; }

/* =====================================================
   MOBILE NAV DRAWER
   ===================================================== */
.mobile-nav {
  position: fixed;
  /* 跟随 navbar 动态 top 值，由 JS 同步 */
  top: 92px;
  left: 0; right: 0;
  background: rgba(5,7,9,0.97);
  backdrop-filter: blur(32px) saturate(160%);
  -webkit-backdrop-filter: blur(32px) saturate(160%);
  border-top: 1px solid rgba(201,169,110,0.08);
  border-bottom: 1px solid rgba(201,169,110,0.15);
  padding: 20px 24px 36px;
  transform: translateY(-16px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.4s var(--spring-soft),
              opacity 0.35s ease,
              top 0.5s var(--ease-out);
  z-index: 999;
}
.mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}
/* 滚动后 navbar 紧贴，mobile-nav 跟着调整 */
.mobile-nav.nav-scrolled {
  top: 68px;
}
.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav-links a {
  display: flex;
  align-items: center;
  padding: 13px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  font-family: 'Syne', 'Space Grotesk', sans-serif;
  border-radius: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: all 0.25s var(--spring-soft);
}
.mobile-nav-links li:last-child a { border-bottom: none; }
.mobile-nav-links a:hover,
.mobile-nav-links a:active {
  background: rgba(201,169,110,0.07);
  color: var(--text-primary);
  padding-left: 22px;
  border-bottom-color: rgba(201,169,110,0.10);
}
.mobile-nav-links a.active {
  color: var(--gold);
  background: rgba(201,169,110,0.06);
}
.mobile-nav-cta {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(201,169,110,0.12);
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1024px) {
  .solutions-grid { grid-template-columns: 1fr 1fr; }
  .solution-card.featured { grid-column: span 2; }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process-steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .cap-layer { grid-template-columns: 160px 1fr; }
}

@media (max-width: 768px) {
  :root { --section-py: 72px; }
  .container { padding: 0 20px; }
  .navbar {
    margin: 0 16px;
    padding: 0 20px;
    top: 12px;
    height: 64px;
    border-radius: 14px;
  }
  .navbar.scrolled {
    margin: 0;
    padding: 0 20px;
    top: 0;
    height: 60px;
    border-radius: 0;
  }
  .nav-logo img { height: 56px; }
  .navbar.scrolled .nav-logo img { height: 48px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .solutions-grid { grid-template-columns: 1fr; }
  .solution-card.featured { grid-column: span 1; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .cap-layer { grid-template-columns: 1fr; }
  .layer-label {
    text-align: left;
    align-items: flex-start;
    padding-right: 0;
    padding-bottom: 12px;
    border-right: none;
    border-bottom: 2px solid var(--glass-border);
  }
  .layer-label::after { right: auto; left: -1px; top: auto; bottom: -6px; }

  .hero-stats { gap: 32px; }
  .about-info { grid-template-columns: 1fr; }
  .cta-box { padding: 48px 32px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 40px; }
  .hero-stats { flex-direction: column; gap: 24px; }
  .about-logo-display { padding: 40px 24px; }
  .about-logo-img { width: 200px; }
}