/* ────────────────────────────────────────────────────────────
 *  金文海贝信息科技 · 官网样式
 *  风格：深空科技 + AI 渐变光效 + 玻璃质感
 * ──────────────────────────────────────────────────────────── */

:root {
  /* 色板 */
  --bg-base:   #0A0E1A;
  --bg-elev-1: #0E1428;
  --bg-elev-2: #131B36;
  --text-1:    #F4F6FB;
  --text-2:    #9AA5BE;
  --text-3:    #6B7693;
  --text-4:    #4A5470;

  --border-soft: rgba(255,255,255,.06);
  --border:      rgba(255,255,255,.10);
  --border-hi:   rgba(255,255,255,.18);

  --brand-1: #2196F3;       /* 主蓝（对齐 logo 帆船色） */
  --brand-2: #5B8CFF;       /* 蓝紫过渡 */
  --brand-3: #06B6D4;       /* 青（呼应 logo 海浪） */
  --brand-1-soft: rgba(33,150,243,.18);
  --brand-2-soft: rgba(91,140,255,.18);
  --brand-3-soft: rgba(6,182,212,.18);

  --grad-brand: linear-gradient(135deg, #2196F3 0%, #5B8CFF 45%, #06B6D4 100%);
  --grad-text:  linear-gradient(135deg, #BFE0FF 0%, #C8D4FF 50%, #B8F0FF 100%);

  /* 尺寸 */
  --container: 1200px;
  --nav-h: 64px;
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-pill: 999px;

  /* 字号 */
  --fs-hero: clamp(40px, 7.2vw, 92px);
  --fs-h2:   clamp(28px, 4vw, 48px);
  --fs-h3:   20px;
  --fs-body: 16px;
  --fs-sm:   14px;
  --fs-xs:   12px;

  /* 动效 */
  --ease-out: cubic-bezier(.22, .61, .36, 1);
}

/* ── reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', Roboto, Arial, sans-serif;
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--text-1);
  background: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; padding: 0; margin: 0; }
::selection { background: var(--brand-1); color: #fff; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ── Reveal 入场动画 ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ── 顶部导航 ─────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  transition: background-color .3s var(--ease-out), backdrop-filter .3s var(--ease-out), border-bottom-color .3s var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(10, 14, 26, .72);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
          backdrop-filter: blur(20px) saturate(180%);
  border-bottom-color: var(--border-soft);
}
.nav-inner {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
}
.nav-brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  filter: drop-shadow(0 4px 14px rgba(33,150,243,.45));
  transition: filter .2s;
}
.nav-brand:hover .nav-brand-mark {
  filter: drop-shadow(0 6px 18px rgba(33,150,243,.65));
}
.nav-brand-mark img { display: block; }
.nav-brand-text {
  display: flex; flex-direction: column;
  line-height: 1.1;
}
.nav-brand-cn {
  font-size: 16px; font-weight: 700; color: var(--text-1);
  letter-spacing: 1px;
}
.nav-brand-en {
  font-size: 10px; color: var(--text-3);
  letter-spacing: 1.5px;
  margin-top: 2px;
}

.nav-links {
  display: flex; gap: 32px;
}
.nav-links a {
  font-size: 14px;
  color: var(--text-2);
  position: relative;
  padding: 4px 0;
  transition: color .2s;
}
.nav-links a:hover { color: var(--text-1); }
.nav-links a::after {
  content: '';
  position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1px; background: var(--grad-brand);
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease-out);
}
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta {
  font-size: 13px;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border);
  color: var(--text-1);
  transition: background-color .2s, border-color .2s, transform .15s;
}
.nav-cta:hover {
  background: var(--brand-1-soft);
  border-color: var(--brand-1);
}
.nav-cta:active { transform: scale(.97); }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: calc(var(--nav-h) + 40px) 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, #1A2152 0%, var(--bg-base) 60%);
}
.hero-bg #particles {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
}

/* 渐变光球 */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .55;
  pointer-events: none;
  animation: orbFloat 14s var(--ease-out) infinite;
}
.orb-1 {
  width: 480px; height: 480px;
  background: #2196F3;
  top: -120px; left: -120px;
}
.orb-2 {
  width: 380px; height: 380px;
  background: #5B8CFF;
  top: 30%; right: -100px;
  animation-delay: -4s;
  opacity: .42;
}
.orb-3 {
  width: 320px; height: 320px;
  background: #06B6D4;
  bottom: -80px; left: 30%;
  animation-delay: -8s;
  opacity: .42;
}
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.06); }
  66% { transform: translate(-30px, 24px) scale(.96); }
}

/* 网格 */
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 0%, transparent 80%);
}

/* 噪点 */
.noise {
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .08 0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: .6;
  pointer-events: none;
  mix-blend-mode: overlay;
}

.hero-inner {
  position: relative; z-index: 1;
  text-align: center;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px 6px 12px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border);
  background: rgba(255,255,255,.04);
  -webkit-backdrop-filter: blur(8px);
          backdrop-filter: blur(8px);
  font-size: 12px;
  color: var(--text-2);
  letter-spacing: 1.5px;
  margin-bottom: 28px;
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #2196F3;
  box-shadow: 0 0 0 0 rgba(33,150,243,.6);
  animation: pulse 2s var(--ease-out) infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(33,150,243,.6); }
  50%      { box-shadow: 0 0 0 8px rgba(33,150,243,0); }
}

.hero-title {
  font-size: var(--fs-hero);
  line-height: 1.04;
  letter-spacing: -0.5px;
  font-weight: 800;
  margin: 0 0 22px;
  display: flex; flex-direction: column;
  gap: 4px;
}
.hero-title > span { display: block; }
.hero-sub {
  max-width: 680px;
  margin: 0 auto 36px;
  font-size: 18px;
  color: var(--text-2);
  line-height: 1.65;
}

.hero-cta {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px;
  margin-bottom: 56px;
}

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--r-pill);
  font-size: 15px; font-weight: 600;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.05);
  color: var(--text-1);
  letter-spacing: .5px;
  transition: transform .15s var(--ease-out), background-color .2s, border-color .2s, box-shadow .2s;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0) scale(.98); }
.btn-primary {
  background: var(--grad-brand);
  border-color: transparent;
  box-shadow: 0 8px 28px rgba(33,150,243,.42);
  color: #fff;
}
.btn-primary:hover {
  box-shadow: 0 12px 36px rgba(33,150,243,.55);
}
.btn-ghost {
  background: rgba(255,255,255,.04);
  -webkit-backdrop-filter: blur(8px);
          backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.08);
  border-color: var(--border-hi);
}

/* Trust */
.hero-trust {
  display: inline-flex; flex-wrap: wrap; align-items: center; gap: 12px;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border-soft);
  font-size: 13px; color: var(--text-3);
  letter-spacing: 1px;
}
.trust-label { color: var(--text-2); font-weight: 600; }
.trust-divider {
  width: 1px; height: 12px; background: var(--border);
}
.dot-mid {
  width: 3px; height: 3px; border-radius: 50%;
  background: var(--text-4);
  display: inline-block;
}

/* 滚动提示 */
.scroll-hint {
  position: absolute;
  bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 10px; letter-spacing: 3px;
  color: var(--text-3);
  opacity: .7;
}
.mouse {
  width: 22px; height: 36px;
  border: 1.5px solid var(--text-3);
  border-radius: 12px;
  position: relative;
}
.mouse-dot {
  position: absolute;
  left: 50%; top: 7px; transform: translateX(-50%);
  width: 3px; height: 6px;
  border-radius: 2px;
  background: var(--text-2);
  animation: scrollDot 1.8s var(--ease-out) infinite;
}
@keyframes scrollDot {
  0% { opacity: 0; transform: translate(-50%, -4px); }
  40% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, 12px); }
}

/* ── Section 通用 ────────────────────────────────────────── */
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 12px;
  color: var(--brand-1);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 600;
}
.section-title {
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: -0.3px;
  line-height: 1.18;
  margin: 0 0 16px;
}
.section-sub {
  max-width: 600px;
  margin: 0 auto;
  color: var(--text-2);
  font-size: 16px;
}

/* ── About ───────────────────────────────────────────────── */
.about {
  padding: 120px 0 100px;
  position: relative;
}
.about::before {
  content: '';
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 60%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-hi), transparent);
}
.about-inner { max-width: 880px; margin: 0 auto; text-align: center; }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 36px;
  margin-top: 48px;
  text-align: left;
}
.about-lead, .about-body {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-2);
  margin: 0;
}
.about-lead { color: var(--text-1); font-weight: 500; }
.about-lead strong { color: var(--brand-1); font-weight: 700; }

/* ── Capabilities ────────────────────────────────────────── */
.capabilities {
  padding: 100px 0;
  background:
    radial-gradient(circle 600px at 0% 30%, rgba(33,150,243,.07), transparent),
    radial-gradient(circle 600px at 100% 70%, rgba(6,182,212,.06), transparent);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card {
  position: relative;
  padding: 28px 26px 24px;
  background: linear-gradient(180deg, rgba(255,255,255,.045) 0%, rgba(255,255,255,.015) 100%);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  transition: transform .3s var(--ease-out), border-color .3s, box-shadow .3s, background .3s;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: var(--r-lg);
  padding: 1px;
  background: var(--grad-brand);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.card:hover {
  transform: translateY(-4px);
  border-color: transparent;
  background: linear-gradient(180deg, rgba(255,255,255,.07) 0%, rgba(255,255,255,.02) 100%);
  box-shadow: 0 16px 48px rgba(0,0,0,.4);
}
.card:hover::before { opacity: 1; }

.card-ico {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
  position: relative;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
}
.card-ico svg {
  width: 22px; height: 22px;
  stroke: var(--brand-1);
}
.card-ico::after {
  content: '';
  position: absolute; inset: -1px;
  border-radius: 12px;
  background: var(--grad-brand);
  opacity: 0;
  z-index: -1;
  filter: blur(16px);
  transition: opacity .3s;
}
.card:hover .card-ico::after { opacity: .35; }
.ico-saas svg     { stroke: #2196F3; }
.ico-app svg      { stroke: #5B8CFF; }
.ico-mp svg       { stroke: #06B6D4; }
.ico-kb svg       { stroke: #2196F3; }
.ico-agent svg    { stroke: #5B8CFF; }
.ico-advisory svg { stroke: #06B6D4; }

.card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .3px;
}
.card p {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-2);
}
.card-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.card-tags li {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border-soft);
  color: var(--text-3);
  letter-spacing: .5px;
}

/* ── Stats ────────────────────────────────────────────────── */
.stats {
  padding: 100px 0;
  position: relative;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 64px;
}
.stat {
  text-align: center;
  padding: 32px 16px;
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.04) 0%, rgba(255,255,255,.01) 100%);
  border: 1px solid var(--border-soft);
}
.stat-num {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -1px;
  display: inline-flex; align-items: baseline;
}
.stat-unit { font-size: .6em; margin-left: 2px; opacity: .85; }
.stat-label {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-3);
  letter-spacing: 2px;
}

.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.value {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 24px;
  background: rgba(255,255,255,.025);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
}
.value-ico {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(33,150,243,.12);
  border: 1px solid rgba(33,150,243,.25);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand-1);
}
.value-ico svg { width: 20px; height: 20px; }
.value h4 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-1);
}
.value p {
  margin: 0;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.6;
}

/* ── Contact ──────────────────────────────────────────────── */
.contact {
  position: relative;
  padding: 120px 0;
  text-align: center;
  overflow: hidden;
}
.contact-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(33,150,243,.12) 0%, transparent 70%);
}
.contact-bg .orb {
  filter: blur(100px);
  opacity: .35;
}
.orb-c-1 {
  width: 420px; height: 420px;
  background: #2196F3;
  top: -100px; left: 15%;
  animation: orbFloat 16s var(--ease-out) infinite;
}
.orb-c-2 {
  width: 360px; height: 360px;
  background: #06B6D4;
  bottom: -100px; right: 15%;
  animation: orbFloat 18s var(--ease-out) infinite reverse;
}

.contact-inner { position: relative; z-index: 1; max-width: 780px; margin: 0 auto; }
.contact-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.15;
  margin: 0 0 16px;
}
.contact-sub {
  font-size: 17px;
  color: var(--text-2);
  margin: 0 auto 36px;
  max-width: 580px;
}
/* 联系角色卡片 */
.contact-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
  text-align: left;
}
.cc {
  position: relative;
  padding: 26px 24px 22px;
  background: linear-gradient(180deg, rgba(255,255,255,.045) 0%, rgba(255,255,255,.015) 100%);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  -webkit-backdrop-filter: blur(10px);
          backdrop-filter: blur(10px);
  transition: transform .3s var(--ease-out), border-color .3s, box-shadow .3s, background .3s;
  overflow: hidden;
}
.cc::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: var(--r-lg);
  padding: 1px;
  background: var(--grad-brand);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.cc:hover {
  transform: translateY(-4px);
  background: linear-gradient(180deg, rgba(255,255,255,.07) 0%, rgba(255,255,255,.02) 100%);
  box-shadow: 0 18px 48px rgba(0,0,0,.45);
}
.cc:hover::before { opacity: 1; }

.cc-head {
  display: flex; align-items: flex-start; gap: 14px;
  margin-bottom: 18px;
}
.cc-ico {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  border: 1px solid var(--border);
}
.cc-ico svg { width: 20px; height: 20px; }
.cc-ico::after {
  content: '';
  position: absolute; inset: -2px;
  border-radius: 14px;
  z-index: -1;
  filter: blur(14px);
  opacity: .45;
  transition: opacity .3s;
}
.cc:hover .cc-ico::after { opacity: .65; }

.cc-ico-sales       { background: rgba(33,150,243,.10); }
.cc-ico-sales svg   { stroke: #2196F3; }
.cc-ico-sales::after { background: #2196F3; }
.cc-ico-tech        { background: rgba(6,182,212,.10); }
.cc-ico-tech svg    { stroke: #06B6D4; }
.cc-ico-tech::after { background: #06B6D4; }

.cc-meta { flex: 1; min-width: 0; }
.cc-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--r-pill);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.cc-tag-sales { background: rgba(33,150,243,.14); color: #66B6FA; }
.cc-tag-tech  { background: rgba(6,182,212,.14);  color: #67D8E9; }

.cc-name {
  margin: 4px 0 4px;
  font-size: 19px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: .5px;
}
.cc-desc {
  margin: 0;
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: .3px;
}

/* 邮箱展示行（玻璃片） */
.cc-mail {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: rgba(0,0,0,.22);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 14px;
  letter-spacing: .3px;
  transition: color .2s, border-color .2s, background .2s;
  word-break: break-all;
}
.cc-mail .van-icon, .cc-mail svg { color: var(--text-3); flex-shrink: 0; }
.cc-mail:hover {
  color: var(--text-1);
  border-color: var(--border-hi);
  background: rgba(0,0,0,.32);
}

.cc-actions {
  display: flex; gap: 8px;
}
.btn-sm {
  height: 38px;
  padding: 0 16px;
  font-size: 13px;
  border-radius: 10px;
  flex: 1;
}
.btn-sm svg { width: 14px; height: 14px; }

.cc .copy-mail.copied {
  background: rgba(16,185,129,.14);
  border-color: rgba(16,185,129,.4);
  color: #34D399;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  position: relative;
  background: var(--bg-elev-1);
  border-top: 1px solid var(--border-soft);
}
.footer-inner {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
  gap: 24px;
  padding: 48px 24px 32px;
}
.footer-brand {
  display: flex; align-items: center; gap: 12px;
}
.footer-brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  filter: drop-shadow(0 2px 10px rgba(33,150,243,.35));
}
.footer-brand-mark img { display: block; }
.footer-name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .5px;
}
.footer-slogan {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 2px;
  letter-spacing: .3px;
}
.footer-nav {
  display: flex; gap: 28px;
}
.footer-nav a {
  font-size: 13px;
  color: var(--text-3);
  transition: color .2s;
}
.footer-nav a:hover { color: var(--text-1); }

.footer-meta {
  border-top: 1px solid var(--border-soft);
}
.footer-meta-inner {
  padding: 20px 24px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: .3px;
}
.footer-meta a:hover { color: var(--text-2); }
.meta-dot { color: var(--text-4); }

/* ── 响应式 ───────────────────────────────────────────────── */
@media (max-width: 960px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 720px) {
  :root { --nav-h: 56px; }
  .nav-inner { gap: 12px; }
  .nav-brand-text .nav-brand-en { display: none; }
  .nav-brand-cn { font-size: 15px; }
  .nav-links { display: none; }   /* 移动端简化 */
  .nav-cta { padding: 7px 14px; font-size: 12px; }

  .hero { padding: calc(var(--nav-h) + 60px) 0 60px; }
  .hero-sub { font-size: 16px; padding: 0 8px; }
  .hero-trust { font-size: 12px; padding: 8px 14px; gap: 8px; }
  .scroll-hint { display: none; }

  .about, .capabilities, .stats, .contact { padding: 70px 0; }
  .cards { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-cards { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-meta-inner { flex-direction: column; gap: 6px; }
  .meta-dot { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}