/* ==========================================================================
   正国科技 · iOS 风格营销页
   灵感：Apple.com 产品页 —— 大标题、留白、圆角卡片、毛玻璃、柔和渐变
   ========================================================================== */

:root {
  --ink: #1d1d1f;
  --ink-2: #424245;
  --gray: #6e6e73;
  --bg: #ffffff;
  --bg2: #f5f5f7;
  --line: rgba(0, 0, 0, 0.08);
  --blue: #0071e3;
  --blue-h: #0077ed;
  --indigo: #5e5ce6;
  --purple: #bf5af2;
  --pink: #ff375f;
  --green: #34c759;
  --r-lg: 28px;
  --r-md: 20px;
  --r-sm: 14px;
  --shadow: 0 1px 2px rgba(0,0,0,.03), 0 12px 32px rgba(0,0,0,.06);
  --shadow-lg: 0 2px 4px rgba(0,0,0,.04), 0 24px 60px rgba(0,0,0,.10);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "SF Pro Display",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑",
    "Noto Sans SC", "Source Han Sans SC", "WenQuanYi Micro Hei",
    "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; border: 0; background: none; cursor: pointer; }

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

/* ---------- 通用标题 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 18px;
}
.eyebrow.white { color: rgba(255,255,255,.85); }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(52,199,89,.18); }

.sec { padding: clamp(72px, 10vw, 120px) 0; }
.bg-white { background: #fff; }
.bg-gray { background: var(--bg2); }

.sec-head { text-align: center; max-width: 760px; margin: 0 auto clamp(40px, 6vw, 64px); }
.sec-head h2 {
  font-size: clamp(30px, 4.6vw, 46px);
  line-height: 1.15;
  letter-spacing: 0;
  font-weight: 700;
}
.sec-head .sub { margin-top: 16px; color: var(--gray); font-size: clamp(15px, 1.6vw, 18px); }

.grad-text {
  background: linear-gradient(100deg, #0071e3 10%, #5e5ce6 55%, #bf5af2 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 980px;
  font-size: 16px;
  font-weight: 600;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .2s;
  will-change: transform;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 24px rgba(0,113,227,.28); }
.btn-primary:hover { background: var(--blue-h); box-shadow: 0 14px 30px rgba(0,113,227,.34); transform: translateY(-1px); }
.btn-ghost { color: var(--blue); }
.btn-ghost:hover { background: rgba(0,113,227,.08); }
.btn-white { background: #fff; color: var(--ink); }
.btn-white:hover { box-shadow: 0 12px 30px rgba(0,0,0,.22); transform: translateY(-1px); }
.btn-outline-light { border: 1px solid rgba(255,255,255,.55); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,.12); }
.btn-sm { padding: 8px 18px; font-size: 14px; }

/* ======================= 导航 ======================= */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.06);
}
.nav-inner {
  width: min(1120px, 92%);
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 30px; height: 30px;
  border-radius: 9px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #0071e3, #5e5ce6);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 4px 10px rgba(94,92,230,.35);
}
.brand-name { font-size: 16px; font-weight: 700; letter-spacing: .01em; display: flex; align-items: baseline; gap: 8px; }
.brand-name small { font-size: 11px; font-weight: 500; color: var(--gray); }

.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a {
  padding: 6px 10px;
  border-radius: 980px;
  font-size: 13.5px;
  white-space: nowrap;
  color: var(--ink-2);
  transition: background .2s, color .2s;
}
.nav-links a:hover { background: rgba(0,0,0,.05); color: var(--ink); }
.nav-links a.active { background: rgba(0,113,227,.1); color: var(--blue); }
.nav-cta { margin-left: 6px; padding: 10px 18px; font-size: 14px; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-left: auto;
}
.nav-toggle span {
  width: 18px; height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform .3s var(--ease), opacity .2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ======================= Hero ======================= */
.hero {
  position: relative;
  padding: clamp(140px, 22vh, 210px) 0 clamp(70px, 10vw, 110px);
  background: linear-gradient(180deg, #fbfbfd 0%, #fff 100%);
  overflow: hidden;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .55;
  pointer-events: none;
  animation: drift 16s ease-in-out infinite alternate;
}
.orb-a { width: 560px; height: 560px; top: -180px; right: -140px; background: radial-gradient(circle at 30% 30%, rgba(0,113,227,.5), rgba(94,92,230,.25) 60%, transparent 75%); }
.orb-b { width: 520px; height: 520px; bottom: -240px; left: -180px; background: radial-gradient(circle at 60% 40%, rgba(191,90,242,.4), rgba(0,113,227,.18) 60%, transparent 78%); animation-delay: -8s; }
@keyframes drift {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(-40px, 30px) scale(1.08); }
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.hero h1 {
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.005em;
  font-weight: 700;
}
.hero .lead {
  margin: 22px 0 30px;
  font-size: clamp(16px, 1.9vw, 20px);
  color: var(--gray);
  max-width: 34em;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.hero-tags li {
  font-size: 12.5px;
  color: var(--ink-2);
  background: rgba(0,0,0,.045);
  padding: 7px 14px;
  border-radius: 980px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-tags li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: linear-gradient(135deg, #34c759, #30d158); }

/* Hero 右侧玻璃卡片 */
.hero-visual { position: relative; }
.glass-card {
  position: relative;
  border-radius: 28px;
  padding: 26px 24px;
  background: rgba(255,255,255,.62);
  border: 1px solid rgba(255,255,255,.75);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  backdrop-filter: blur(22px) saturate(160%);
  box-shadow: var(--shadow-lg);
}
.gc-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.gc-title { font-size: 15px; font-weight: 700; }
.gc-status {
  font-size: 12px; font-weight: 600; color: var(--green);
  display: inline-flex; align-items: center; gap: 6px;
}
.gc-status i { width: 8px; height: 8px; border-radius: 50%; background: var(--green); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52,199,89,.4);} 50% { opacity: .7; box-shadow: 0 0 0 5px rgba(52,199,89,0);} }

.gc-steps { display: grid; gap: 0; }
.gc-steps li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 15px 4px;
  position: relative;
}
.gc-steps li + li::before {
  content: "";
  position: absolute;
  left: 22px; top: 0;
  width: 1px; height: 100%;
  background: linear-gradient(180deg, rgba(94,92,230,.35), rgba(94,92,230,.08));
}
.gc-steps b {
  flex: 0 0 auto;
  width: 44px; height: 44px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #0071e3, #5e5ce6);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(0,113,227,.3);
}
.gc-steps div strong { display: block; font-size: 15px; font-weight: 600; margin-top: 2px; }
.gc-steps div span { font-size: 13px; color: var(--gray); }

.float-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 980px;
  background: rgba(255,255,255,.85);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,.9);
  box-shadow: var(--shadow);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  animation: floaty 6s ease-in-out infinite;
}
.chip-1 { top: -18px; right: -6px; }
.chip-2 { bottom: 26px; left: -34px; animation-delay: -3s; }
.mini-ic { font-style: normal; font-size: 15px; }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ======================= 痛点 ======================= */
.pains-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}
.pain-card {
  grid-column: span 2;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 26px 24px;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), border-color .3s;
}
.pain-card:nth-child(4), .pain-card:nth-child(5) { grid-column: span 3; }
.pain-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0,113,227,.25);
}
.pain-num {
  font-size: 13px; font-weight: 700;
  color: var(--blue);
  letter-spacing: .06em;
}
.pain-card h3 { font-size: 19px; font-weight: 650; margin: 10px 0 8px; letter-spacing: -0.01em; }
.pain-card p { font-size: 14.5px; color: var(--gray); }

.pain-quote {
  grid-column: span 2;
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: var(--r-lg);
  padding: 30px 26px;
  color: #fff;
  background:
    radial-gradient(120% 120% at 10% 0%, rgba(255,255,255,.18), transparent 45%),
    linear-gradient(150deg, #0071e3 0%, #5e5ce6 100%);
  box-shadow: 0 20px 50px rgba(94,92,230,.35);
}
.quote-mark {
  font-family: Georgia, serif;
  font-size: 54px;
  line-height: .6;
  opacity: .55;
  margin-bottom: 14px;
}
.pain-quote p { font-size: 17.5px; line-height: 1.7; font-weight: 500; }
.pain-quote p strong { color: #fff; font-weight: 700; }
.pain-quote footer { margin-top: 18px; font-size: 12.5px; opacity: .75; }

.pains-footnote { text-align: center; margin-top: 36px; color: var(--gray); font-size: 14.5px; }
.chip-cloud {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.chip-cloud span {
  font-size: 13px;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line);
  padding: 8px 16px;
  border-radius: 980px;
  transition: all .3s var(--ease);
}
.chip-cloud span:hover { border-color: rgba(0,113,227,.4); color: var(--blue); transform: translateY(-2px); }

/* ======================= AI 四赋能 ======================= */
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.value-card {
  background: #fff;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  padding: 30px 24px 28px;
  box-shadow: 0 1px 2px rgba(0,0,0,.02);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.value-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.value-ic {
  width: 54px; height: 54px;
  border-radius: 17px;
  display: grid; place-items: center;
  color: #fff;
  margin-bottom: 20px;
}
.value-ic svg { width: 26px; height: 26px; }
.ic-blue   { background: linear-gradient(135deg, #0071e3, #0a84ff); box-shadow: 0 10px 20px rgba(0,113,227,.3); }
.ic-indigo { background: linear-gradient(135deg, #5e5ce6, #7d7aff); box-shadow: 0 10px 20px rgba(94,92,230,.3); }
.ic-purple { background: linear-gradient(135deg, #bf5af2, #da8fff); box-shadow: 0 10px 20px rgba(191,90,242,.3); }
.ic-pink   { background: linear-gradient(135deg, #ff375f, #ff6482); box-shadow: 0 10px 20px rgba(255,55,95,.3); }

.value-card h3 { font-size: 19px; font-weight: 650; margin-bottom: 8px; letter-spacing: -0.01em; }
.value-card p { font-size: 14.5px; color: var(--gray); }

.values-note {
  max-width: 820px;
  margin: clamp(28px, 5vw, 44px) auto 0;
  text-align: center;
  font-size: 15px;
  color: var(--gray);
  background: #fff;
  border: 1px dashed rgba(0,0,0,.14);
  border-radius: var(--r-md);
  padding: 22px 26px;
}
.values-note strong { color: var(--ink); }

/* ======================= 解决方案 ======================= */
.solutions-list { display: grid; gap: 16px; max-width: 920px; margin: 0 auto; }
.sol-row {
  display: flex;
  gap: clamp(20px, 4vw, 44px);
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 26px 28px;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .3s;
}
.sol-row:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(94,92,230,.3); }
.sol-tag {
  flex: 0 0 auto;
  font-size: 12.5px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #5e5ce6, #bf5af2);
  border-radius: 980px;
  padding: 7px 14px;
  letter-spacing: .04em;
  margin-top: 4px;
}
.sol-body h3 { font-size: 19px; font-weight: 650; margin-bottom: 6px; }
.sol-body p { font-size: 14.8px; color: var(--gray); max-width: 46em; }

/* ======================= 为什么是正国 ======================= */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.why-card {
  background: #fff;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  padding: 32px 26px;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.why-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.why-card h3 { font-size: 19px; font-weight: 650; margin-bottom: 10px; letter-spacing: -0.01em; }
.why-card p { font-size: 14.8px; color: var(--gray); }

/* ======================= 出海愿景 ======================= */
.vision-sec { background: #05050a; position: relative; overflow: hidden; }
.vision-sec::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(52% 60% at 20% 20%, rgba(0,113,227,.30), transparent 60%),
    radial-gradient(48% 60% at 85% 30%, rgba(94,92,230,.28), transparent 60%),
    radial-gradient(60% 60% at 60% 100%, rgba(191,90,242,.18), transparent 62%);
}
.vision-panel {
  position: relative;
  text-align: center;
  color: #fff;
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(30px, 6vw, 70px) clamp(20px, 5vw, 60px);
}
.vision-icon {
  width: 64px; height: 64px;
  margin: 0 auto 26px;
  border-radius: 20px;
  display: grid; place-items: center;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.16);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: #8fd3ff;
}
.vision-icon svg { width: 30px; height: 30px; }
.vision-panel h2 {
  font-size: clamp(26px, 3.8vw, 40px);
  line-height: 1.2;
  letter-spacing: 0;
  font-weight: 700;
}
.vision-panel p { margin: 18px auto 0; font-size: 15.5px; color: rgba(255,255,255,.72); max-width: 40em; }
.vision-note {
  display: inline-block;
  margin-top: 26px;
  font-size: 13.5px;
  color: #8fd3ff;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  padding: 9px 18px;
  border-radius: 980px;
}

/* ======================= 政策 ======================= */
.policy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.policy-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
a.policy-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.policy-src {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 700;
  color: var(--indigo);
  background: rgba(94,92,230,.1);
  border-radius: 980px;
  padding: 5px 12px;
  margin-bottom: 16px;
}
.policy-card h3 { font-size: 17.5px; font-weight: 650; line-height: 1.4; margin-bottom: 10px; }
.policy-card p { font-size: 14px; color: var(--gray); flex: 1; }
.policy-card em { font-style: normal; font-size: 13px; color: var(--blue); margin-top: 16px; font-weight: 600; }

/* ======================= CTA ======================= */
.cta-sec { padding-bottom: clamp(80px, 12vw, 140px); }
.cta-panel {
  position: relative;
  overflow: hidden;
  text-align: center;
  color: #fff;
  border-radius: 34px;
  padding: clamp(46px, 8vw, 90px) clamp(20px, 6vw, 70px);
  background:
    radial-gradient(120% 130% at 15% 0%, rgba(255,255,255,.14), transparent 46%),
    linear-gradient(140deg, #0071e3 0%, #5e5ce6 52%, #7a3ff2 100%);
  box-shadow: 0 40px 90px rgba(94,92,230,.4);
}
.cta-panel h2 {
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.005em;
  font-weight: 700;
}
.cta-panel > p { margin: 18px auto 0; font-size: 15.5px; color: rgba(255,255,255,.85); max-width: 42em; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }

.contact-list {
  margin-top: 40px;
  display: flex;
  justify-content: center;
  gap: clamp(16px, 5vw, 60px);
  flex-wrap: wrap;
  font-size: 13.5px;
}
.contact-list div { text-align: left; }
.contact-list dt { opacity: .6; font-size: 12px; margin-bottom: 4px; }
.contact-list dd { font-weight: 600; }

/* ======================= 页脚 ======================= */
.footer { background: #f5f5f7; border-top: 1px solid rgba(0,0,0,.06); padding: 40px 0 34px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr auto;
  gap: 30px;
  align-items: start;
}
.footer-brand { display: flex; gap: 14px; align-items: flex-start; }
.footer-brand .brand-mark { width: 34px; height: 34px; font-size: 17px; flex: 0 0 auto; }
.footer-brand p { font-size: 13px; color: var(--gray); line-height: 1.7; }
.footer-links { display: grid; gap: 8px; }
.footer-links a { font-size: 13.5px; color: var(--ink-2); width: fit-content; }
.footer-links a:hover { color: var(--blue); }
.footer-meta { text-align: right; font-size: 12.5px; color: var(--gray); }
.footer-meta p + p { margin-top: 6px; }
.footer-beian small { color: #b0b0b5; }

/* ======================= 滚动进场动画 ======================= */
.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: var(--d, 0s);
}
.js .reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ======================= 响应式 ======================= */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 560px; margin: 0 auto; }
  .chip-2 { left: -6px; }

  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid, .policy-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-meta { text-align: left; }
}

/* 栏目排不下的宽度：副标语先收起来 */
@media (max-width: 1499px) {
  .brand-name small { display: none; }
}

/* 更早切汉堡菜单，保证导航栏永不溢出 */
@media (max-width: 1239px) {
  .nav-links {
    position: fixed;
    top: 60px; left: 0; right: 0;
    flex-direction: column;
    background: rgba(255,255,255,.95);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--line);
    padding: 12px 6vw 18px;
    gap: 2px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s var(--ease), transform .3s var(--ease);
  }
  .nav-links.open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-links a { display: block; padding: 12px 12px; font-size: 15px; border-radius: 12px; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
}

@media (max-width: 760px) {
  .pains-grid { grid-template-columns: 1fr; }
  .pain-card, .pain-card:nth-child(4), .pain-card:nth-child(5), .pain-quote { grid-column: span 1; grid-row: auto; }
  .values-grid { grid-template-columns: 1fr; }
  .sol-row { flex-direction: column; gap: 12px; }
  .contact-list { flex-direction: column; align-items: center; text-align: center; }
  .contact-list div { text-align: center; }
}

@media (max-width: 420px) {
  .float-chip { font-size: 11.5px; padding: 8px 12px; }
  .chip-1 { right: 0; }
}

/* ==========================================================================
   V2 · 中国地图 / 畅想场景 / 页脚调整
   ========================================================================== */

/* ---------- 地图面板 ---------- */
.map-panel {
  position: relative;
  margin-top: 44px;
  border-radius: 32px;
  padding: clamp(28px, 5vw, 54px) clamp(14px, 4vw, 48px) 34px;
  background:
    radial-gradient(55% 65% at 15% 0%, rgba(0,113,227,.22), transparent 60%),
    radial-gradient(50% 60% at 90% 15%, rgba(94,92,230,.20), transparent 60%),
    linear-gradient(180deg, #0a0e20 0%, #0c1230 55%, #101a44 100%);
  border: 1px solid rgba(120,160,255,.16);
  overflow: hidden;
  box-shadow: 0 34px 90px rgba(8,16,60,.35);
}
.map-head { position: relative; text-align: center; }
.map-head .eyebrow { color: #7fb9ff; }
.map-head h3 {
  color: #fff;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.18;
  letter-spacing: 0;
  font-weight: 700;
}
.map-sub {
  margin: 14px auto 0;
  max-width: 720px;
  font-size: 14.5px;
  color: rgba(255,255,255,.62);
}
.map-stage { position: relative; margin: 8px auto 0; max-width: 880px; }
#zgChinaSvg { width: 100%; height: auto; display: block; }
#zgChinaSvg .province {
  fill: rgba(140,175,255,.07);
  stroke: rgba(150,195,255,.42);
  stroke-width: .7;
  vector-effect: non-scaling-stroke;
  transition: fill .25s, stroke .25s;
}
#zgChinaSvg .province:hover { fill: rgba(80,150,255,.18); stroke: rgba(120,200,255,.9); }

.map-dot {
  position: absolute;
  width: 12px; height: 12px;
  margin: -6px 0 0 -6px;
  border: none;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, #aef4ff, #34d7ff 55%, #1592ff);
  box-shadow: 0 0 14px rgba(52,215,255,.95), 0 0 34px rgba(52,215,255,.4);
  cursor: pointer;
  z-index: 3;
  transition: transform .2s;
}
.map-dot:hover, .map-dot.on { transform: scale(1.45); }
.map-dot::after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 1.5px solid rgba(90,200,255,.75);
  animation: ping 2.4s ease-out infinite;
}
.map-dot:nth-child(3n)::after { animation-delay: .8s; }
.map-dot:nth-child(3n+1)::after { animation-delay: 1.6s; }
@keyframes ping {
  0% { transform: scale(.4); opacity: 1; }
  75%, 100% { transform: scale(2.3); opacity: 0; }
}

.map-tip {
  position: absolute;
  z-index: 6;
  width: max-content;
  max-width: 250px;
  pointer-events: none;
  padding: 12px 15px;
  border-radius: 15px;
  background: rgba(14,20,48,.94);
  border: 1px solid rgba(140,190,255,.35);
  box-shadow: 0 18px 46px rgba(0,0,0,.5);
  color: #fff;
  font-size: 13px;
  line-height: 1.6;
  opacity: 0;
  transform: translate(-50%, calc(-100% - 18px));
  transition: opacity .25s ease;
}
.map-tip.show { opacity: 1; }
.map-tip::after {
  content: "";
  position: absolute;
  left: 50%; bottom: -6px;
  width: 10px; height: 10px;
  background: rgba(14,20,48,.94);
  border-right: 1px solid rgba(140,190,255,.35);
  border-bottom: 1px solid rgba(140,190,255,.35);
  transform: translateX(-50%) rotate(45deg);
}
.map-tip b { display: block; color: #8fd0ff; font-size: 14.5px; margin-bottom: 3px; }
.map-tip span { color: rgba(255,255,255,.72); }

.map-hint {
  position: relative;
  margin-top: 22px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.5);
}
.hint-dot {
  display: inline-block;
  width: 8px; height: 8px;
  margin-right: 7px;
  border-radius: 50%;
  background: #34d7ff;
  box-shadow: 0 0 10px rgba(52,215,255,.9);
  vertical-align: 1px;
  animation: pulse 2s infinite;
}

/* ---------- 畅想场景（深色科技感） ---------- */
.future-sec {
  position: relative;
  background: #070a16;
  overflow: hidden;
}
.future-sec::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(110,160,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(110,160,255,.06) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(80% 70% at 50% 20%, #000 30%, transparent 80%);
  mask-image: radial-gradient(80% 70% at 50% 20%, #000 30%, transparent 80%);
  pointer-events: none;
}
.future-sec .sec-head h2 { color: #fff; }
.eyebrow.light { color: #6fb6ff; }
.sub.light { color: rgba(255,255,255,.6); }

.scene-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.scene-card {
  background: linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.015));
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 26px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .5s var(--ease), border-color .3s, box-shadow .5s var(--ease);
}
.scene-card:hover {
  transform: translateY(-6px);
  border-color: rgba(120,180,255,.4);
  box-shadow: 0 34px 80px rgba(0,20,80,.5);
}

.scene-visual {
  position: relative;
  height: 250px;
  display: grid;
  place-items: center;
  padding: 20px;
  overflow: hidden;
}
.sc-dash   { background: radial-gradient(130% 170% at 18% 0%, rgba(0,113,227,.38), transparent 58%), #0d1228; }
.sc-chat   { background: radial-gradient(130% 170% at 80% 10%, rgba(34,200,255,.30), transparent 58%), #0b1424; }
.sc-design { background: radial-gradient(130% 170% at 20% 90%, rgba(191,90,242,.34), transparent 58%), #100b26; }
.sc-board  { background: radial-gradient(130% 170% at 85% 90%, rgba(52,199,89,.24), transparent 60%), #0a1520; }

.scene-caption {
  position: absolute;
  right: 16px; bottom: 14px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .05em;
  color: rgba(255,255,255,.72);
  background: rgba(255,255,255,.09);
  border: 1px solid rgba(255,255,255,.16);
  padding: 5px 12px;
  border-radius: 980px;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.mock-window {
  width: min(370px, 88%);
  background: rgba(8,12,30,.82);
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 26px 60px rgba(0,0,0,.5);
}
.mock-bar { display: flex; gap: 5px; padding: 11px 13px; border-bottom: 1px solid rgba(255,255,255,.08); }
.mock-bar span { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,.24); }
.mock-body { padding: 12px 16px 18px; }
.mock-label { font-size: 11.5px; color: rgba(255,255,255,.5); margin-bottom: 8px; }
.mock-bignum { font-size: 42px; line-height: 1; font-weight: 800; color: #6ee7ff; }
.mock-bignum span { font-size: 16px; color: rgba(255,255,255,.45); font-weight: 600; }
.mock-chart { display: flex; align-items: flex-end; gap: 8px; height: 72px; margin-top: 14px; }
.mock-chart i {
  flex: 1;
  border-radius: 5px 5px 2px 2px;
  background: linear-gradient(180deg, #35d3ff, #5e5ce6 160%);
  box-shadow: 0 6px 16px rgba(53,211,255,.22);
  opacity: .95;
}

.mock-chat { padding-bottom: 8px; }
.chat-line { padding: 4px 12px; }
.chat-line p {
  width: fit-content;
  max-width: 82%;
  margin: 2px 0;
  padding: 7px 11px;
  border-radius: 12px;
  font-size: 11.5px;
  line-height: 1.5;
  color: rgba(240,246,255,.88);
  background: rgba(255,255,255,.1);
  border-bottom-left-radius: 4px;
}
.chat-line.right { display: flex; justify-content: flex-end; }
.chat-line.right.ai p {
  background: linear-gradient(135deg, #0071e3, #5e5ce6);
  color: #fff;
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 4px;
}
.chat-line.left p { border-bottom-left-radius: 4px; }

.mock-canvas { position: relative; height: 148px; margin: 12px 14px 0; border-radius: 12px; background: #0b0f2b; overflow: hidden; }
.blob { position: absolute; border-radius: 50%; filter: blur(1px); opacity: .85; }
.b1 { width: 110px; height: 110px; left: 12%; top: 8%; background: radial-gradient(circle at 35% 30%, #ff8ab5, #bf5af2 70%); }
.b2 { width: 130px; height: 130px; right: 6%; top: 30%; background: radial-gradient(circle at 40% 35%, #35d3ff, #0a84ff 70%); }
.b3 { width: 90px; height: 90px; left: 40%; bottom: -20px; background: radial-gradient(circle at 40% 35%, #ffd60a, #ff9f0a 75%); opacity: .7; }
.mock-spark { position: absolute; color: #fff; font-size: 16px; text-shadow: 0 0 10px rgba(255,255,255,.9); }
.s1 { left: 8%; top: 70%; animation: twinkle 2.6s infinite; }
.s2 { right: 16%; top: 12%; animation: twinkle 2.6s 1.3s infinite; }
@keyframes twinkle { 0%,100% { opacity: .35; transform: scale(.8);} 50% { opacity: 1; transform: scale(1.15);} }
.mock-canvas-cap {
  margin: 0 14px 12px;
  padding: 7px 10px;
  border-radius: 8px;
  background: rgba(255,255,255,.06);
  font-size: 11px;
  color: rgba(255,255,255,.6);
}

.mock-list { padding-bottom: 12px; }
.mock-list .mock-label { padding: 12px 16px 2px; margin: 0; }
.mock-list ul { padding: 6px 14px 10px; }
.mock-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 2px;
}
.tick {
  flex: 0 0 auto;
  width: 17px; height: 17px;
  margin-top: 2px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(52,199,89,.18);
  border: 1px solid rgba(52,199,89,.55);
  color: #5be584;
  font-size: 10px;
  font-style: normal;
}
.mock-list li b { display: block; font-size: 12.5px; color: rgba(255,255,255,.92); font-weight: 600; }
.mock-list li span { font-size: 11px; color: rgba(255,255,255,.48); }

.scene-text { padding: 22px 26px 28px; }
.scene-text h3 { font-size: 20px; font-weight: 650; color: #fff; margin-bottom: 8px; letter-spacing: -0.01em; }
.scene-text p { font-size: 14.5px; color: rgba(255,255,255,.62); }

.future-note {
  position: relative;
  margin: 34px auto 0;
  max-width: 760px;
  text-align: center;
  font-size: 14.5px;
  color: rgba(255,255,255,.55);
}

/* ---------- 页脚（取消栏目后） ---------- */
.footer-inner { grid-template-columns: 1fr auto; align-items: center; }
.footer-meta { text-align: right; }

/* ---------- 响应式补充 ---------- */
@media (max-width: 980px) {
  .scene-grid { grid-template-columns: 1fr; }
  .map-stage { max-width: 640px; }
}
@media (max-width: 760px) {
  .scene-visual { height: 220px; }
  .mock-window { width: min(330px, 94%); }
  .map-panel { border-radius: 24px; padding: 24px 12px 26px; }
  .map-tip { max-width: 190px; font-size: 12px; }
  .footer-inner { grid-template-columns: 1fr; gap: 16px; }
  .footer-meta { text-align: left; }
}

/* ==========================================================================
   V3 · 「为什么是现在」/ 四步流程 / 话术改版配套
   ========================================================================== */
.bg-tint {
  background: linear-gradient(180deg, #f6f9ff 0%, #eef4ff 100%);
}
.bg-tint .values-note { background: rgba(255,255,255,.75); }

.reason-num {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1;
  margin-bottom: 18px;
  background: linear-gradient(135deg, #0071e3, #5e5ce6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.process {
  display: flex;
  align-items: stretch;
  gap: 10px;
  max-width: 980px;
  margin: 0 auto clamp(34px, 6vw, 52px);
}
.p-step {
  flex: 1;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 18px 18px;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .3s;
}
.p-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(0,113,227,.3); }
.p-step b {
  flex: 0 0 auto;
  width: 40px; height: 40px;
  border-radius: 13px;
  display: grid; place-items: center;
  font-size: 14px;
  color: #fff;
  background: linear-gradient(135deg, #0071e3, #5e5ce6);
  box-shadow: 0 8px 16px rgba(0,113,227,.28);
}
.p-step strong { display: block; font-size: 15.5px; font-weight: 650; margin-top: 1px; }
.p-step span { display: block; font-size: 12.5px; color: var(--gray); margin-top: 3px; line-height: 1.5; }
.p-arrow {
  align-self: center;
  font-style: normal;
  color: rgba(0,0,0,.25);
  font-size: 20px;
  flex: 0 0 auto;
}

@media (max-width: 900px) {
  .process { flex-wrap: wrap; }
  .p-step { min-width: 45%; }
  .p-arrow { display: none; }
}
@media (max-width: 560px) {
  .p-step { min-width: 100%; }
}

/* ==========================================================================
   V4 · 认识正国 / 扫码试用（电脑版左右两栏 · 苹果官网风格）
   ========================================================================== */
.about-sec { background: #fff; }

.about-grid {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: clamp(36px, 5vw, 72px);
  align-items: center;
}

/* 左侧：照片 */
.photo-frame {
  position: relative;
  border-radius: 32px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  background: #f2f2f5;
}
.photo-frame img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
}
.photo-cap {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray);
}
.photo-cap .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(52,199,89,.16);
}

/* 右侧：介绍 + 扫码 */
.about-copy h2 {
  font-size: clamp(30px, 4.2vw, 46px);
  line-height: 1.12;
  letter-spacing: 0;
  font-weight: 700;
}
.about-lead {
  margin: 18px 0 0;
  font-size: clamp(16px, 1.7vw, 18px);
  color: var(--gray);
  max-width: 38em;
}
.about-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}
.about-chips span {
  font-size: 12.5px;
  color: var(--ink-2);
  background: rgba(0,0,0,.045);
  padding: 7px 14px;
  border-radius: 980px;
}

/* 二维码卡片 */
.qr-card {
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: 520px;
  background: linear-gradient(180deg, #ffffff, #f6f9ff);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.qr-box {
  flex: 0 0 auto;
  width: 132px;
  height: 132px;
  border-radius: 10px;
  background: #fff;
  padding: 6px;
  border: 1px solid var(--line);
}
.qr-box svg { width: 100%; height: 100%; display: block; }
.qr-text { flex: 1; min-width: 0; }
.qr-text strong { display: block; font-size: 15px; font-weight: 650; }
.qr-text span {
  display: block;
  font-size: 12.5px;
  color: var(--gray);
  margin-top: 5px;
  line-height: 1.55;
}
.qr-link {
  display: inline-block;
  margin-top: 9px;
  font-size: 12px;
  font-weight: 600;
  color: var(--blue);
  word-break: break-all;
}
.qr-link:hover { text-decoration: underline; }

@media (max-width: 980px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-photo { max-width: 460px; margin: 0 auto; }
  .qr-card { max-width: none; }
}
@media (max-width: 560px) {
  .photo-frame { border-radius: 24px; }
  .qr-card { flex-direction: column; text-align: center; }
  .qr-box { width: 148px; height: 148px; }
  .qr-text { text-align: center; }
}

/* ==========================================================================
   V5 · 自研产品（官网换成"自己开发、自己先用"的方案）
   ========================================================================== */
.ic-green { background: linear-gradient(135deg, #34c759, #30d158); box-shadow: 0 10px 20px rgba(52,199,89,.25); }

.prod-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.prod-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .3s;
}
.prod-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(0,113,227,.25); }
.prod-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.prod-ic { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; color: #fff; font-size: 20px; }
.prod-status { font-size: 11px; font-weight: 700; border-radius: 980px; padding: 4px 10px; white-space: nowrap; letter-spacing: 0; }
.st-ok    { color: #1e8e44; background: rgba(52,199,89,.13); }
.st-doing { color: var(--blue); background: rgba(0,113,227,.1); }
.st-next  { color: var(--gray); background: rgba(110,110,115,.12); }
.prod-card h3 { font-size: 19px; font-weight: 700; line-height: 1.3; }
.prod-card p { font-size: 14px; color: var(--gray); line-height: 1.75; flex: 1; }
.prod-demo { color: var(--blue); font-weight: 700; font-size: 14.5px; }
.prod-demo:hover { text-decoration: underline; }
.prod-note {
  margin: clamp(30px, 4vw, 44px) auto 0;
  text-align: center;
  font-size: clamp(14px, 1.6vw, 16px);
  color: var(--ink-2);
  max-width: 560px;
}
.prod-note strong { color: var(--blue); font-weight: 700; }

@media (max-width: 980px) {
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .prod-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   V6 · 版式收紧与字体分级（2026-09-09 霍总要求：排版舒服、少浪费空间、
   字号按层级、节省网页长度）——追加覆盖，便于整体回滚
   ========================================================================== */
html { scroll-padding-top: 66px; }
body { line-height: 1.55; }

/* —— 章节级：减高 —— */
.sec { padding: clamp(48px, 6vw, 80px) 0; }
.sec-head { max-width: 720px; margin: 0 auto clamp(24px, 3.6vw, 38px); }
.sec-head h2 { font-size: clamp(24px, 3.4vw, 38px); line-height: 1.2; }
.sec-head .sub { margin-top: 12px; font-size: clamp(14px, 1.35vw, 16.5px); }
.eyebrow { font-size: 12px; margin-bottom: 14px; }
.eyebrow .dot { width: 7px; height: 7px; }

/* —— 首屏：更紧凑但仍是大气第一屏 —— */
.hero { padding: clamp(100px, 13vh, 150px) 0 clamp(48px, 7vw, 80px); }
.hero h1 { font-size: clamp(34px, 5vw, 58px); line-height: 1.08; }
.hero .lead { margin: 16px 0 22px; font-size: clamp(15px, 1.6vw, 18.5px); line-height: 1.65; }
.hero-tags { margin-top: 20px; }
.hero-tags li { padding: 6px 13px; font-size: 12px; }
.hero-grid { gap: clamp(32px, 5vw, 64px); }

/* —— 按钮 —— */
.btn { padding: 11px 22px; font-size: 15px; }
.btn-sm { padding: 8px 16px; font-size: 13.5px; }

/* —— 玻璃卡片 —— */
.glass-card { padding: 20px 20px; border-radius: 24px; }
.gc-head { margin-bottom: 14px; }
.gc-title { font-size: 14.5px; }
.gc-status { font-size: 11.5px; }
.gc-steps li { padding: 11px 4px; }
.gc-steps b { width: 40px; height: 40px; border-radius: 12px; font-size: 13px; }

/* —— 卡片族：间距 18→14、内边距/字号收一档 —— */
.pains-grid, .values-grid, .why-grid, .policy-grid, .prod-grid { gap: 14px; }
.pain-card, .policy-card { padding: 20px 20px; }
.pain-card h3, .value-card h3, .why-card h3, .prod-card h3 { font-size: 17.5px; margin-bottom: 6px; }
.pain-card p, .value-card p, .why-card p, .policy-card p, .prod-card p { font-size: 13.8px; line-height: 1.6; }
.pain-num { font-size: 12px; }
.pain-card h3 { margin: 8px 0 6px; }
.pain-quote { padding: 22px 22px; }
.quote-mark { font-size: 44px; margin-bottom: 10px; }
.pain-quote p { font-size: 16px; line-height: 1.65; }
.pain-quote footer { margin-top: 12px; font-size: 12px; }
.pains-footnote { margin-top: 24px; font-size: 14px; }
.chip-cloud { margin-top: 16px; gap: 8px; }
.chip-cloud span { padding: 6px 14px; font-size: 12px; }

/* —— 四赋能卡 —— */
.value-card { padding: 22px 20px 20px; }
.value-ic { width: 46px; height: 46px; border-radius: 14px; margin-bottom: 12px; }
.value-ic svg { width: 22px; height: 22px; }
.values-note { margin: clamp(18px, 3vw, 26px) auto 0; padding: 14px 20px; font-size: 14px; }

/* —— 步骤/方案/FDE —— */
.sol-row { padding: 18px 20px; gap: clamp(16px, 3vw, 32px); }
.sol-tag { padding: 5px 11px; font-size: 11.5px; margin-top: 3px; }
.sol-body h3 { font-size: 17px; margin-bottom: 5px; }
.sol-body p { font-size: 14px; line-height: 1.6; }
.solutions-list { gap: 12px; }
.why-card { padding: 22px 20px; }
.why-card h3 { font-size: 17px; margin-bottom: 6px; }
.why-card p { font-size: 14px; line-height: 1.6; }
.process { gap: 8px; margin: 0 auto clamp(22px, 3.5vw, 30px); }
.p-step { padding: 14px 14px; gap: 11px; }
.p-step b { width: 36px; height: 36px; border-radius: 11px; font-size: 13px; }
.p-step strong { font-size: 14.5px; }
.p-step span { font-size: 12px; margin-top: 2px; }
.p-arrow { font-size: 18px; }

/* —— 中国地图 —— */
.map-panel { margin-top: 26px; padding: clamp(20px, 3.4vw, 34px) clamp(14px, 3.5vw, 40px) 24px; border-radius: 26px; }
.map-head h3 { font-size: clamp(20px, 3vw, 29px); }
.map-sub { margin: 10px auto 0; font-size: 14px; }
.map-hint { margin-top: 16px; }

/* —— 畅想场景/出海 —— */
.future-note { margin: 20px auto 0; font-size: 14px; }
.scene-grid { gap: 18px; }
.scene-visual { height: 216px; }
.scene-text { padding: 16px 20px 20px; }
.scene-text h3 { font-size: 18px; }
.scene-text p { font-size: 14px; }
.vision-panel { padding: clamp(22px, 4vw, 42px) clamp(18px, 4vw, 50px); }
.vision-icon { width: 52px; height: 52px; margin-bottom: 16px; border-radius: 17px; }
.vision-icon svg { width: 25px; height: 25px; }
.vision-panel h2 { font-size: clamp(22px, 3.1vw, 31px); }
.vision-panel p { margin: 12px auto 0; font-size: 15px; }
.vision-note { margin-top: 18px; padding: 8px 16px; font-size: 13px; }

/* —— 认识正国/扫码 —— */
.about-grid { gap: clamp(24px, 4vw, 44px); }
.about-copy h2 { font-size: clamp(24px, 3.4vw, 38px); }
.about-lead { margin: 12px 0 0; font-size: clamp(15px, 1.5vw, 17px); }
.about-chips { margin-top: 16px; gap: 8px; }
.about-chips span { padding: 6px 13px; font-size: 12px; }
.qr-card { margin-top: 20px; padding: 14px 16px; }
.qr-box { width: 118px; height: 118px; }
.qr-text strong { font-size: 14.5px; }

/* —— 自研产品 —— */
.prod-card { padding: 20px 18px; gap: 10px; border-radius: 22px; }
.prod-ic { width: 42px; height: 42px; font-size: 18px; }
.prod-status { padding: 3px 9px; font-size: 10.5px; }
.prod-demo { font-size: 14px; }
.prod-note { margin: clamp(18px, 3vw, 26px) auto 0; font-size: clamp(13.5px, 1.4vw, 15px); }

/* —— 为什么是正国 编号 —— */
.reason-num { font-size: 24px; margin-bottom: 10px; }

/* —— CTA / 页脚 —— */
.cta-sec { padding-bottom: clamp(52px, 8vw, 88px); }
.cta-panel { border-radius: 26px; padding: clamp(30px, 4.6vw, 52px) clamp(18px, 4.5vw, 56px); }
.cta-panel h2 { font-size: clamp(26px, 3.8vw, 40px); }
.cta-panel > p { margin: 12px auto 0; font-size: 15px; }
.cta-actions { margin-top: 22px; }
.contact-list { margin-top: 24px; gap: clamp(14px, 4vw, 44px); font-size: 13px; }
.footer { padding: 28px 0 24px; }

@media (max-width: 760px) {
  .sec { padding: 44px 0; }
  .sec-head { margin-bottom: 22px; }
  .hero { padding: 108px 0 42px; }
  .scene-visual { height: 196px; }
  .map-panel { padding: 20px 12px 22px; }
  .footer { padding: 24px 0 20px; }
  .values-note, .prod-note { margin-top: 16px; }
}

/* ---------- 企业AI部署方式（4 卡） ---------- */
.deploy-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.deploy-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 24px 20px 20px;
  display: flex; flex-direction: column; gap: 9px;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .3s;
}
.deploy-card::before {
  content: ""; position: absolute; left: 20px; right: 20px; top: 0; height: 3px;
  border-radius: 0 0 6px 6px; background: linear-gradient(90deg, #0071e3, #5e5ce6);
}
.deploy-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(0,113,227,.28); }
.deploy-no { font-size: 12px; font-weight: 700; letter-spacing: .08em; color: var(--blue); }
.deploy-card h3 { font-size: 17.5px; font-weight: 650; line-height: 1.35; letter-spacing: -.01em; }
.deploy-way {
  align-self: flex-start; font-size: 12.5px; font-weight: 600; color: var(--indigo);
  background: rgba(94,92,230,.08); border: 1px solid rgba(94,92,230,.18);
  border-radius: 980px; padding: 4px 11px;
}
.deploy-fit { font-size: 13px; color: var(--gray); line-height: 1.6; margin: 0; }
.deploy-fit b { color: var(--ink-2); font-weight: 600; }
.deploy-card p { margin: 0; font-size: 13.5px; color: var(--gray); line-height: 1.65; }
.deploy-cta { margin-top: 20px; display: flex; justify-content: center; }
@media (max-width: 1120px) { .deploy-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .deploy-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   iOS 视觉层（追加覆盖 · 2026-09-16）：环境背景 / 玻璃卡片 / 悬浮导航 /
   滚动进入动画 / 弹性反馈 / AI 入口 / 深色模式 / 移动端适配
   —— 只做视觉与交互，不改内容、结构与业务逻辑
   ========================================================================== */
:root{
  --ios-glass: rgba(255,255,255,.72);
  --ios-glass-strong: rgba(255,255,255,.86);
  --ios-glass-soft: rgba(255,255,255,.55);
  --ios-border: rgba(255,255,255,.66);
  --ios-border-line: rgba(16,24,40,.07);
  --ios-sh-1: 0 1px 2px rgba(16,24,40,.04), 0 10px 26px rgba(16,24,40,.06);
  --ios-sh-2: 0 2px 8px rgba(16,24,40,.07), 0 24px 56px rgba(16,24,40,.13);
  --ios-spring: cubic-bezier(.34,1.42,.5,1);
  --ios-ease: cubic-bezier(.22,.61,.36,1);
  --ios-r-card: 22px;
  --nav-rgb: 255,255,255;
  --nav-a: .58;
}

/* ---------- ① 环境背景（极慢漂移，克制） ---------- */
html{ background:#f5f6fb; }
body{ background: transparent; }
body::before{
  content:""; position:fixed; inset:-22vmax; z-index:-2; pointer-events:none;
  background:
    radial-gradient(38rem 38rem at 14% 6%, rgba(0,113,227,.15), transparent 62%),
    radial-gradient(34rem 34rem at 86% 10%, rgba(94,92,230,.15), transparent 62%),
    radial-gradient(42rem 42rem at 52% 106%, rgba(191,90,242,.11), transparent 66%),
    linear-gradient(180deg, #f7f8fc 0%, #f3f5fb 55%, #f6f7fc 100%);
  filter: blur(26px);
  will-change: transform;
  animation: iosDriftA 52s ease-in-out infinite alternate;
}
body::after{
  content:""; position:fixed; inset:-12vmax; z-index:-2; pointer-events:none;
  background:
    radial-gradient(26rem 26rem at 76% 70%, rgba(0,113,227,.10), transparent 62%),
    radial-gradient(24rem 24rem at 20% 86%, rgba(94,92,230,.10), transparent 62%);
  filter: blur(34px);
  will-change: transform;
  animation: iosDriftB 68s ease-in-out infinite alternate;
}
@keyframes iosDriftA{ from{ transform: translate3d(0,0,0) scale(1); } to{ transform: translate3d(-2%, -1.6%, 0) scale(1.05); } }
@keyframes iosDriftB{ from{ transform: translate3d(0,0,0) scale(1.02); } to{ transform: translate3d(2.2%, 2%, 0) scale(1); } }

/* 区块背景改为半透明，让环境光透出来（文字对比度仍充足） */
.bg-white{ background: rgba(255,255,255,.62); }
.bg-gray{ background: rgba(244,246,251,.60); }
.bg-tint{ background: linear-gradient(180deg, rgba(246,249,255,.70), rgba(238,244,255,.62)); }
.about-sec{ background: rgba(255,255,255,.58); }

/* ---------- ② 悬浮导航（滚动渐变透明 + 胶囊按钮） ---------- */
.nav{
  background: rgba(var(--nav-rgb), var(--nav-a));
  -webkit-backdrop-filter: saturate(180%) blur(22px);
  backdrop-filter: saturate(180%) blur(22px);
  border-bottom: 1px solid rgba(var(--nav-rgb), .55);
  box-shadow: 0 1px 0 rgba(16,24,40,.03);
  transition: box-shadow .4s var(--ios-ease), border-color .4s var(--ios-ease);
}
.nav.scrolled{ box-shadow: 0 10px 30px rgba(16,24,40,.08); border-bottom-color: rgba(16,24,40,.08); }
.nav-links a{ transition: background .28s var(--ios-ease), color .28s var(--ios-ease), transform .3s var(--ios-spring); }
.nav-links a:hover{ transform: translateY(-1px); }
.nav-links a.active{ background: rgba(0,113,227,.12); color: var(--blue); }
.nav-cta{ box-shadow: 0 8px 20px rgba(0,113,227,.26); }

/* ---------- ③ 卡片统一玻璃化（克制层级） ---------- */
.glass-card, .pain-card, .value-card, .why-card, .sol-row, .policy-card,
.prod-card, .deploy-card, .qr-card, .photo-frame{
  background: var(--ios-glass);
  -webkit-backdrop-filter: blur(18px) saturate(170%);
  backdrop-filter: blur(18px) saturate(170%);
  border: 1px solid var(--ios-border);
  box-shadow: var(--ios-sh-1);
  border-radius: var(--ios-r-card);
  transition: transform .42s var(--ios-spring), box-shadow .42s var(--ios-ease),
              border-color .42s var(--ios-ease), background .42s var(--ios-ease);
}
.pain-card:hover, .value-card:hover, .why-card:hover, .sol-row:hover, .policy-card:hover,
.prod-card:hover, .deploy-card:hover{
  transform: translateY(-4px) scale(1.012);
  box-shadow: var(--ios-sh-2);
  border-color: rgba(255,255,255,.9);
}
.pain-card:active, .value-card:active, .why-card:active, .sol-row:active,
.policy-card:active, .prod-card:active, .deploy-card:active{ transform: scale(.986); }
/* 深色面板（地图/场景卡）：保留原有深色底，只增强光影与圆角，避免浅底浅字 */
.map-panel, .scene-card{
  border-radius: var(--ios-r-card);
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 30px 70px rgba(8,16,60,.42);
}
.gc-steps li, .about-chips span, .hero-tags li{
  background: rgba(255,255,255,.6);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.66);
}
/* 深色背景上的小标签（地图云、出海愿景提示）：用深色玻璃，别用浅底 */
.chip-cloud span, .vision-note{
  background: rgba(255,255,255,.10);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.20);
}

/* ---------- ④ 首屏：空间层级 + 缓慢环境光 + 漂浮玻璃卡片 ---------- */
.hero{ background: transparent; overflow: visible; }
.hero .orb{ animation-duration: 34s; }
.hero h1{ letter-spacing: -.012em; }
.float-chip{
  background: var(--ios-glass-strong);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--ios-border);
  box-shadow: var(--ios-sh-1);
  transition: transform .5s var(--ios-spring), box-shadow .5s var(--ios-ease);
}
.float-chip:hover{ transform: translateY(-3px) scale(1.03); box-shadow: var(--ios-sh-2); }
.chip-3{ top: 34%; left: -18px; animation-delay: -1.4s; }
.chip-4{ top: 62%; right: -14px; animation-delay: -2.6s; }
.chip-5{ bottom: -10px; left: 34%; animation-delay: -4.2s; }
.chip-6{ top: -12px; left: 8%; animation-delay: -5.1s; }

/* ---------- ⑤ 滚动进入动画（blur → clear · scale · 依次进入） ---------- */
.js .reveal{
  opacity: 0;
  transform: translateY(22px) scale(.985);
  filter: blur(9px);
  transition: opacity .52s var(--ios-ease), transform .62s var(--ios-spring),
              filter .52s var(--ios-ease);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform, filter;
}
.js .reveal.in{ opacity: 1; transform: none; filter: blur(0); will-change: auto; }

/* ---------- ⑥ 按钮：胶囊 + 玻璃次要按钮 + 触感回弹 ---------- */
.btn{
  transition: transform .34s var(--ios-spring), box-shadow .34s var(--ios-ease),
              background .3s var(--ios-ease), color .3s var(--ios-ease);
}
.btn:active{ transform: scale(.965); }
.btn-glass{
  color: var(--ink);
  background: var(--ios-glass);
  border: 1px solid var(--ios-border);
  -webkit-backdrop-filter: blur(14px) saturate(170%);
  backdrop-filter: blur(14px) saturate(170%);
  box-shadow: var(--ios-sh-1);
}
.btn-glass:hover{ box-shadow: var(--ios-sh-2); transform: translateY(-1px); }

/* ---------- ⑦ 部署卡片：图标 + 光线轻扫 ---------- */
/* 深色渐变面板（联系我们）：保留原渐变，只加细边与柔和层次，避免白字被浅色覆盖 */
.cta-panel{
  border: 1px solid rgba(255,255,255,.26);
  box-shadow: 0 34px 80px rgba(94,92,230,.38);
  -webkit-backdrop-filter: saturate(150%) blur(2px);
  backdrop-filter: saturate(150%) blur(2px);
}
.cta-panel .contact-list div{ background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.18); border-radius: 14px; padding: 12px 14px; }
.cta-panel .contact-list dd{ color: #fff; }
.cta-panel .contact-list dt{ color: rgba(255,255,255,.72); }

.deploy-card{ overflow: hidden; }
.deploy-card::before{ transition: opacity .4s var(--ios-ease); }
.deploy-ico{
  width: 44px; height: 44px; border-radius: 14px;
  display: grid; place-items: center;
  color: #fff;
  background: linear-gradient(135deg, #0071e3, #5e5ce6);
  box-shadow: 0 8px 18px rgba(0,113,227,.26);
  transition: transform .42s var(--ios-spring), box-shadow .42s var(--ios-ease);
}
.deploy-ico svg{ width: 22px; height: 22px; }
.deploy-card:hover .deploy-ico{ transform: scale(1.08) rotate(-2deg); box-shadow: 0 12px 24px rgba(0,113,227,.32); }
.deploy-card::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,.42) 48%, transparent 62%);
  transform: translateX(-120%); transition: transform .8s var(--ios-ease);
}
.deploy-card:hover::after{ transform: translateX(120%); }

/* ---------- ⑧ 右下角 AI 入口（玻璃按钮 + spring 弹层） ---------- */
.ai-fab{
  position: fixed; z-index: 130;
  right: calc(22px + env(safe-area-inset-right));
  bottom: calc(24px + env(safe-area-inset-bottom));
  width: 58px; height: 58px; border-radius: 20px;
  display: grid; place-items: center; cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, rgba(0,113,227,.94), rgba(94,92,230,.94));
  border: 1px solid rgba(255,255,255,.5);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 12px 30px rgba(0,80,200,.34), 0 0 0 7px rgba(0,113,227,.08);
  transition: transform .38s var(--ios-spring), box-shadow .38s var(--ios-ease);
}
.ai-fab svg{ width: 24px; height: 24px; }
.ai-fab:hover{ transform: scale(1.06) translateY(-2px); box-shadow: 0 18px 42px rgba(0,80,200,.42), 0 0 0 11px rgba(0,113,227,.10); }
.ai-fab:active{ transform: scale(.93); }
.ai-sheet{
  position: fixed; z-index: 129;
  right: calc(22px + env(safe-area-inset-right));
  bottom: calc(94px + env(safe-area-inset-bottom));
  width: min(350px, calc(100vw - 36px));
  padding: 18px 18px 16px;
  border-radius: 26px;
  background: rgba(255,255,255,.78);
  -webkit-backdrop-filter: blur(26px) saturate(180%);
  backdrop-filter: blur(26px) saturate(180%);
  border: 1px solid rgba(255,255,255,.72);
  box-shadow: 0 26px 64px rgba(16,24,40,.22);
  transform: translateY(16px) scale(.94); opacity: 0; pointer-events: none;
  transform-origin: 100% 100%;
  transition: transform .46s var(--ios-spring), opacity .3s var(--ios-ease);
}
.ai-sheet.on{ transform: none; opacity: 1; pointer-events: auto; }
.ai-sheet-head{ display:flex; align-items:center; gap:8px; font-size:15px; }
.ai-pulse{ width:9px; height:9px; border-radius:50%; background:#34c759; box-shadow:0 0 0 4px rgba(52,199,89,.18); animation: iosPulse 2.4s ease-in-out infinite; }
@keyframes iosPulse{ 50%{ opacity:.55; } }
.ai-sheet-x{ margin-left:auto; border:0; background:rgba(0,0,0,.05); width:26px; height:26px; border-radius:50%; cursor:pointer; color:var(--gray); transition: transform .3s var(--ios-spring), background .25s; }
.ai-sheet-x:hover{ background:rgba(0,0,0,.09); }
.ai-sheet-x:active{ transform: scale(.9); }
.ai-sheet-sub{ margin:8px 0 14px; font-size:13px; color:var(--gray); line-height:1.6; }
.ai-sheet-actions{ display:grid; gap:10px; }
.ai-sheet-actions .btn{ width:100%; }
.ai-sheet-note{ margin:12px 0 0; font-size:11.5px; color:#a1a1a6; line-height:1.6; }

/* ---------- ⑨ 深色模式（预留，跟随系统） ---------- */
@media (prefers-color-scheme: dark){
  :root{
    --ink:#f2f2f7; --ink-2:#d1d1d6; --gray:#a1a1a6; --line: rgba(255,255,255,.12);
    --bg:#0f1115; --bg2:#14161c;
    --ios-glass: rgba(28,30,36,.72);
    --ios-glass-strong: rgba(32,34,40,.86);
    --ios-glass-soft: rgba(28,30,36,.55);
    --ios-border: rgba(255,255,255,.14);
    --ios-border-line: rgba(255,255,255,.10);
    --ios-sh-1: 0 1px 2px rgba(0,0,0,.5), 0 10px 26px rgba(0,0,0,.45);
    --ios-sh-2: 0 2px 8px rgba(0,0,0,.55), 0 24px 56px rgba(0,0,0,.6);
    --nav-rgb: 20,22,28; --nav-a: .62;
  }
  html{ background:#0f1115; }
  body::before{
    background:
      radial-gradient(38rem 38rem at 14% 6%, rgba(0,113,227,.22), transparent 62%),
      radial-gradient(34rem 34rem at 86% 10%, rgba(94,92,230,.20), transparent 62%),
      radial-gradient(42rem 42rem at 52% 106%, rgba(120,80,220,.14), transparent 66%),
      linear-gradient(180deg, #0f1115 0%, #12141b 55%, #0f1115 100%);
  }
  body::after{ background:
      radial-gradient(26rem 26rem at 76% 70%, rgba(0,113,227,.14), transparent 62%),
      radial-gradient(24rem 24rem at 20% 86%, rgba(94,92,230,.14), transparent 62%); }
  .bg-white{ background: rgba(22,24,30,.60); }
  .bg-gray{ background: rgba(18,20,26,.60); }
  .bg-tint{ background: linear-gradient(180deg, rgba(20,24,34,.66), rgba(16,20,28,.60)); }
  .about-sec{ background: rgba(20,22,28,.55); }
  .gc-steps li, .about-chips span, .hero-tags li{ background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.12); }
  .chip-cloud span, .vision-note{ background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.16); }
  .ai-sheet{ background: rgba(28,30,36,.82); border-color: rgba(255,255,255,.16); }
  .ai-sheet-x{ background: rgba(255,255,255,.08); }
  .footer{ background:#111318; border-top-color: rgba(255,255,255,.08); }
  .values-note{ background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.14); }
  /* 写死白底的卡片，深色下一律换成深色玻璃，避免白底浅字看不清 */
  .p-step, .pain-quote, .policy-card, .prod-card, .value-card, .why-card, .pain-card,
  .sol-row, .glass-card, .qr-card, .photo-frame, .process .p-step, .contact-list div,
  .btn-white, .reason-num{
    background: var(--ios-glass) !important;
    border-color: var(--ios-border) !important;
  }
  .btn-white{ color: var(--ink) !important; }
  .doc, .mock-window, .scene-visual, .map-stage{ background: #0b0f1c !important; }
  .map-panel, .scene-card{ background: inherit; }
  /* 深色模式细节：蓝色提亮、次要元素可读 */
  :root{ --blue:#4da3ff; --blue-h:#6cb4ff; --indigo:#8f8dff; }
  .p-arrow{ color: rgba(255,255,255,.35); }
  .deploy-way{ background: rgba(143,141,255,.16); border-color: rgba(143,141,255,.30); color: #b6b4ff; }
  .sol-tag{ box-shadow: 0 6px 16px rgba(94,92,230,.35); }
  .eyebrow{ color: #6cb4ff; }
}

/* ---------- ⑩ 移动端：按 iPhone 交互优化 ---------- */
@media (max-width: 760px){
  .ai-fab{ width:54px; height:54px; border-radius:18px; right: calc(16px + env(safe-area-inset-right)); bottom: calc(18px + env(safe-area-inset-bottom)); }
  .ai-sheet{ right: calc(12px + env(safe-area-inset-right)); left: calc(12px + env(safe-area-inset-left)); width: auto; bottom: calc(84px + env(safe-area-inset-bottom)); border-radius: 22px; }
  .btn{ min-height: 46px; }
  .btn-sm{ min-height: 40px; }
  .deploy-grid{ gap: 12px; }
  .float-chip{ font-size: 11px; padding: 7px 11px; }
  .chip-3,.chip-4,.chip-5{ display:none; }
  .chip-6{ top: -10px; left: 0; }
  body::before{ filter: blur(20px); }
  .glass-card, .pain-card, .value-card, .why-card, .sol-row, .policy-card, .prod-card, .deploy-card{
    -webkit-backdrop-filter: blur(12px) saturate(160%); backdrop-filter: blur(12px) saturate(160%);
  }
}
@media (max-width: 420px){
  .card, .deploy-card{ border-radius: 18px; }
  .ai-sheet-actions .btn{ font-size: 14px; }
}

/* ---------- ⑪ 无障碍与性能 ---------- */
@media (prefers-reduced-motion: reduce){
  body::before, body::after, .orb, .float-chip, .ai-pulse{ animation: none !important; }
  .js .reveal{ opacity:1 !important; transform:none !important; filter:none !important; transition:none !important; }
  .btn, .ai-fab, .ai-sheet, .nav-links a{ transition: none !important; }
}
/* 不支持 backdrop-filter 的设备：退化为半透明纯色，保证可读性 */
@supports not ((backdrop-filter: blur(2px)) or (-webkit-backdrop-filter: blur(2px))){
  .glass-card, .pain-card, .value-card, .why-card, .sol-row, .policy-card, .prod-card, .deploy-card,
  .qr-card, .ai-sheet, .nav, .float-chip, .btn-glass{
    background: rgba(255,255,255,.95) !important;
  }
  .scene-card, .map-panel{ background: #0b1020 !important; }
}

/* ---------- ⑪ 全国产业地图：省份 → 按市产业结构 ---------- */
.map-body{
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(300px, .88fr);
  gap: clamp(16px, 2.4vw, 30px);
  align-items: start;
  margin-top: 18px;
}
.map-body .map-stage{ margin: 0; max-width: 100%; }
#zgChinaSvg .province{ cursor: pointer; }
#zgChinaSvg .province.on{ fill: rgba(80,150,255,.28); stroke: rgba(160,220,255,.95); }
#zgChinaSvg .province.dim{ fill: rgba(140,175,255,.04); }

.map-side{
  position: relative;
  min-height: 340px;
  border-radius: 24px;
  padding: 15px 15px 13px;
  background: rgba(255,255,255,.055);
  border: 1px solid rgba(140,180,255,.20);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06);
  color: #fff;
}
.side-search{
  width: 100%;
  height: 38px;
  padding: 0 13px;
  border-radius: 12px;
  border: 1px solid rgba(140,180,255,.24);
  background: rgba(10,16,38,.55);
  color: #fff;
  font: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.side-search::placeholder{ color: rgba(255,255,255,.42); }
.side-search:focus{ border-color: rgba(120,200,255,.75); box-shadow: 0 0 0 3px rgba(52,215,255,.14); }
.side-sug{
  position: absolute; left: 15px; right: 15px; top: 60px;
  z-index: 6; max-height: 232px; overflow: auto;
  border-radius: 14px; padding: 6px;
  background: rgba(12,18,42,.97);
  border: 1px solid rgba(140,180,255,.28);
  box-shadow: 0 20px 44px rgba(4,10,32,.55);
}
.side-sug button{
  display: block; width: 100%; text-align: left;
  padding: 8px 10px; border: none; border-radius: 10px;
  background: transparent; color: #fff; font: inherit; font-size: 12.5px; cursor: pointer;
  line-height: 1.5;
}
.side-sug button:hover{ background: rgba(90,160,255,.16); }
.side-sug b{ color: #8fd0ff; }
.side-sug span{ color: rgba(255,255,255,.6); }
.side-sug .no{ padding: 10px 12px; color: rgba(255,255,255,.55); font-size: 12.5px; }

.side-empty{ padding: 46px 16px; text-align: center; }
.side-empty .se-t{ color: #8fd0ff; font-size: 14.5px; font-weight: 650; margin-bottom: 8px; }
.side-empty .se-d{ color: rgba(255,255,255,.58); font-size: 12.8px; line-height: 1.75; }

.side-title{ display: flex; align-items: baseline; gap: 9px; padding: 2px 2px 0; }
.side-title h4{ color: #fff; font-size: 17.5px; font-weight: 700; letter-spacing: .01em; }
.side-count{ color: rgba(255,255,255,.45); font-size: 11.5px; }
.side-sum{ margin: 9px 2px 12px; color: rgba(255,255,255,.66); font-size: 12.8px; line-height: 1.75; }
.side-bases{ display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.side-bases span{
  font-size: 11.5px; font-weight: 600; color: #a8d4ff;
  background: rgba(80,150,255,.14);
  border: 1px solid rgba(120,180,255,.28);
  padding: 3px 9px; border-radius: 980px; white-space: nowrap;
}
.side-cities{ max-height: 384px; overflow: auto; padding-right: 4px; margin: 0 -2px; }
.side-cities::-webkit-scrollbar{ width: 5px; }
.side-cities::-webkit-scrollbar-thumb{ background: rgba(140,180,255,.3); border-radius: 3px; }
.city-row{
  display: flex; gap: 10px; padding: 7px 8px; border-radius: 10px;
  transition: background .18s;
}
.city-row + .city-row{ border-top: 1px solid rgba(140,180,255,.10); }
.city-row b{ flex: 0 0 66px; color: #a8d4ff; font-size: 12.8px; font-weight: 650; }
.city-row span{ color: rgba(255,255,255,.74); font-size: 12.4px; line-height: 1.65; }
.city-row.hit{ background: rgba(52,215,255,.14); outline: 1px solid rgba(52,215,255,.34); }
.side-foot{ margin-top: 11px; color: rgba(255,255,255,.42); font-size: 11.5px; line-height: 1.6; }

@media (max-width: 980px){
  .map-body{ grid-template-columns: 1fr; }
  .map-side{ min-height: 0; }
  .side-empty{ padding: 26px 12px; }
  .side-cities{ max-height: 320px; }
  .city-row b{ flex-basis: 58px; }
}
@media (prefers-reduced-motion: reduce){
  .city-row, .side-search{ transition: none; }
}

/* ---------- ⑫ AI 四类事 + 两条路 + 行业痛点 ---------- */
.value-line{
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(0,0,0,.10);
  font-size: 13.5px;
  color: var(--blue);
  font-weight: 600;
  line-height: 1.6;
}
.paths-head{ text-align: center; margin: clamp(38px, 6vw, 60px) auto 22px; max-width: 760px; }
.paths-head h3{ font-size: clamp(21px, 2.6vw, 28px); font-weight: 700; letter-spacing: -.01em; }
.paths-head p{ margin-top: 12px; color: var(--gray); font-size: 15px; line-height: 1.75; }

.paths{ display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; align-items: start; }
.path-card{
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 28px 26px 26px;
  box-shadow: 0 1px 2px rgba(0,0,0,.02);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.path-card:hover{ transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.path-card-deep{ background: linear-gradient(180deg, #f7f9ff 0%, #fff 46%); }
.path-tag{
  display: inline-block;
  font-size: 12px; font-weight: 700; letter-spacing: .02em;
  color: var(--blue); background: rgba(0,113,227,.10);
  border: 1px solid rgba(0,113,227,.20);
  padding: 4px 11px; border-radius: 980px; margin-bottom: 14px;
}
.path-tag.tag-deep{ color: #5e5ce6; background: rgba(94,92,230,.10); border-color: rgba(94,92,230,.22); }
.path-card h3{ font-size: 20px; font-weight: 680; letter-spacing: -.01em; margin-bottom: 10px; line-height: 1.35; }
.path-desc{ font-size: 14.5px; color: var(--gray); line-height: 1.75; }
.path-list, .path-steps{ list-style: none; margin: 16px 0 0; padding: 0; }
.path-list li, .path-steps li{
  display: flex; gap: 10px; align-items: baseline;
  padding: 11px 0;
  border-top: 1px solid var(--line);
  font-size: 14px; line-height: 1.65;
}
.path-list li:first-child, .path-steps li:first-child{ border-top: none; padding-top: 4px; }
.path-list b, .path-steps b{
  flex: 0 0 96px; font-weight: 650; color: var(--ink); font-size: 14px;
}
.path-steps{ counter-reset: pstep; }
.path-steps li{ position: relative; padding-left: 30px; }
.path-steps li::before{
  counter-increment: pstep; content: counter(pstep);
  position: absolute; left: 0; top: 11px;
  width: 20px; height: 20px; border-radius: 50%;
  background: rgba(94,92,230,.12); color: #5e5ce6;
  font-size: 11.5px; font-weight: 700;
  display: grid; place-items: center;
}
.path-steps li span, .path-list li span{ color: var(--gray); }

.industry-block{ margin-top: clamp(40px, 6vw, 64px); }
.mini-head{ text-align: center; max-width: 780px; margin: 0 auto 20px; }
.mini-head h3{ font-size: clamp(20px, 2.4vw, 26px); font-weight: 700; letter-spacing: -.01em; }
.mini-head p{ margin-top: 11px; color: var(--gray); font-size: 14.5px; line-height: 1.75; }
.industry-grid{ display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.ind-card{
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px 20px 18px;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s var(--ease);
}
.ind-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(0,113,227,.28); }
.ind-card h4{
  font-size: 15.5px; font-weight: 680; margin-bottom: 8px; color: var(--ink);
  display: flex; align-items: center; gap: 7px;
}
.ind-card h4::before{
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: linear-gradient(135deg, #0071e3, #5e5ce6); flex: 0 0 auto;
}
.ind-card p{ font-size: 13.5px; color: var(--gray); line-height: 1.78; }
.ind-card-wide{ grid-column: 1 / -1; background: linear-gradient(120deg, #f7f9ff, #fff 60%); }

@media (max-width: 1080px){
  .paths{ grid-template-columns: 1fr; }
  .industry-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px){
  .industry-grid{ grid-template-columns: 1fr; }
  .path-list b, .path-steps b{ flex-basis: 84px; }
  .value-line{ font-size: 13px; }
}
@media (prefers-reduced-motion: reduce){
  .path-card, .ind-card{ transition: none; }
}
/* 深色模式：新卡片一律换深色玻璃，避免白底浅字 */
@media (prefers-color-scheme: dark){
  .path-card, .ind-card, .values-note{
    background: var(--ios-glass) !important;
    border-color: var(--ios-border) !important;
  }
  .path-card-deep, .ind-card-wide{
    background: linear-gradient(180deg, rgba(94,92,230,.14), rgba(255,255,255,.04)) !important;
  }
  .value-line{ border-top-color: rgba(255,255,255,.14); color: #6cb4ff; }
  .path-list li, .path-steps li{ border-top-color: rgba(255,255,255,.10); }
  .path-list b, .path-steps b, .ind-card h4{ color: var(--ink); }
  .path-tag{ color: #6cb4ff; background: rgba(77,163,255,.16); border-color: rgba(77,163,255,.30); }
  .path-tag.tag-deep{ color: #b6b4ff; background: rgba(143,141,255,.16); border-color: rgba(143,141,255,.30); }
  .path-steps li::before{ background: rgba(143,141,255,.22); color: #b6b4ff; }
}

/* ==================== v2 紧凑排版（2026-10）====================
   目的：删掉多余留白，同样的内容更紧凑、一屏能看到更多。
   做法：集中在末尾覆盖，不改上面原有结构；要回退直接用 css/style.bak-紧凑前.css。 */
.sec { padding: clamp(28px, 5vw, 60px) 0; }
.sec-head { margin: 0 auto clamp(16px, 2.4vw, 26px); }
.sec-head .sub { margin-top: 10px; }

.hero { padding: clamp(74px, 9.5vh, 108px) 0 clamp(30px, 4.5vw, 48px); }
.hero-grid { gap: clamp(24px, 3.6vw, 44px); }
.hero .lead { margin: 12px 0 16px; }

.pains-grid, .values-grid, .why-grid, .prod-grid, .deploy-grid, .scene-grid { gap: 14px; }
.industry-grid { gap: 10px; }
.about-grid { gap: clamp(22px, 3.2vw, 44px); }

.value-card { padding: 20px 18px 18px; }
.why-card { padding: 20px 18px; }
.prod-card { padding: 17px 16px; }
.deploy-card { padding: 17px 16px 15px; }
.ind-card { padding: 14px 14px 13px; }
.sol-row { padding: 17px 18px; gap: clamp(14px, 2.6vw, 30px); }
.glass-card { padding: 19px 17px; }
.pain-card { padding: 18px 16px; }
.pain-quote { padding: 20px 20px; }
.qr-card { margin-top: 18px; padding: 14px 15px; gap: 14px; }

.process { margin: 0 auto clamp(22px, 3.4vw, 34px); gap: 8px; }
.paths { margin: clamp(24px, 3.6vw, 40px) auto 14px; }
.solutions-list { gap: 12px; }
.values-note { margin: clamp(18px, 2.8vw, 26px) auto 0; padding: 15px 18px; }
.chip-cloud { margin-top: 14px; }

.map-panel { margin-top: 26px; padding: clamp(20px, 3.4vw, 36px) clamp(12px, 3vw, 36px) 22px; }
.map-body { margin-top: 12px; gap: clamp(14px, 2vw, 24px); }
.map-hint { margin-top: 10px; }

.future-sec { padding: clamp(30px, 5vw, 52px) 0; }
.vision-panel { padding: clamp(24px, 4vw, 44px) clamp(18px, 3.6vw, 36px); }
.cta-panel { padding: clamp(32px, 5.4vw, 56px) clamp(18px, 4vw, 44px); }
.footer { padding: 26px 0 22px; }
.deploy-cta { margin-top: 14px; }

/* 手机端再收一档 */
@media (max-width: 720px) {
  .sec { padding: 26px 0; }
  .hero { padding: 82px 0 26px; }
  .sec-head { margin-bottom: 14px; }
  .value-card, .why-card, .prod-card, .deploy-card, .ind-card { padding: 15px 14px; }
  .sol-row { padding: 15px 15px; }
  .cta-panel { padding: 28px 16px; }
}

/* ===== 官网二维码（v2）：产品卡上的扫码入口 ===== */
.prod-qr{margin-top:10px;padding:9px 10px 10px;border:1px dashed rgba(0,0,0,.14);border-radius:14px;background:#fff;
  display:flex;flex-direction:column;align-items:center;gap:5px}
.prod-qr svg{width:100px;height:100px;display:block}
.prod-qr .qr-cap{font-size:11.5px;color:#6b6b70;text-align:center;line-height:1.5}
.qr-box .qr-cap{display:block;margin-top:6px;font-size:11.5px;color:#6b6b70;text-align:center}

/* ===== 产品卡里的能力清单（紧凑两列，替代原来那行长句） ===== */
.prod-list{list-style:none;margin:8px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:5px 12px}
.prod-list li{display:flex;gap:6px;font-size:12.5px;line-height:1.55;color:var(--gray)}
.prod-list li b{flex:0 0 auto;color:var(--ink);font-weight:650}
@media (max-width:560px){.prod-list{grid-template-columns:1fr}}

/* ===== 去掉 IMG_1203 后的重新排版（v2）：左边讲清楚，右边一个二维码 ===== */
.about-grid{grid-template-columns:1.16fr .84fr;gap:clamp(22px,3.2vw,48px);align-items:center}
.about-qr{display:flex;justify-content:center}
.about-qr .qr-card{margin-top:0;max-width:none;width:100%;align-items:center}
.about-lead{max-width:34em}
@media (max-width:860px){
  .about-grid{grid-template-columns:1fr;gap:20px}
  .about-qr .qr-card{max-width:520px;margin:0 auto}
  .about-qr{order:2}
}
/* ===== 企业接入 AI 会长成三样东西（帮手 → 顾问 → 大脑） ===== */
.brain-block{margin-top:clamp(26px,3.6vw,42px)}
.brain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.brain-card{padding:18px 16px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow)}
.brain-no{display:inline-block;font-size:12.5px;font-weight:700;color:var(--blue);margin-bottom:8px;letter-spacing:.02em}
.brain-card h4{font-size:16px;font-weight:650;color:var(--ink);margin-bottom:7px;line-height:1.35}
.brain-card p{font-size:13.5px;color:var(--gray);line-height:1.65}
.brain-note{margin-top:16px;text-align:center;font-size:14px;color:var(--gray);line-height:1.7}
.brain-note strong{color:var(--ink)}
@media (max-width:860px){.brain-grid{grid-template-columns:1fr;gap:10px}.brain-card{padding:15px 14px}}
/* ===== 我们的判断（显眼带）：AI 是必须的基础工具 ===== */
.judge-sec { padding: clamp(18px, 3vw, 34px) 0 clamp(6px, 1.4vw, 14px); }
.judge-band {
  position: relative; overflow: hidden; color: #fff; border-radius: 30px;
  padding: clamp(26px, 4.2vw, 52px) clamp(20px, 4.6vw, 64px);
  background: radial-gradient(120% 140% at 12% 0%, #1d3a7a 0%, #101a33 46%, #080c18 100%);
  box-shadow: 0 24px 70px rgba(10,22,54,.28); text-align: center;
}
.judge-band::after{content:"";position:absolute;inset:auto -10% -60% -10%;height:70%;
  background:radial-gradient(60% 100% at 50% 100%, rgba(94,156,255,.28), transparent 70%);pointer-events:none}
.judge-tag{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:#cfe0ff;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:6px 14px;margin-bottom:16px}
.judge-tag .dot{width:7px;height:7px;border-radius:50%;background:#7fb2ff;box-shadow:0 0 0 4px rgba(127,178,255,.18)}
.judge-h{font-size:clamp(23px,3.5vw,42px);line-height:1.24;font-weight:800;letter-spacing:-.01em;margin:0}
.judge-h b{color:#ffd9a3;font-weight:800}
.judge-sub{margin:14px auto 0;max-width:34em;font-size:clamp(15px,1.7vw,19px);color:rgba(255,255,255,.9);font-weight:600}
.judge-now{margin:18px auto 0;max-width:44em;font-size:clamp(13.5px,1.5vw,16px);line-height:1.75;
  color:rgba(255,255,255,.8);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:12px 16px}
.judge-now b{color:#fff}
@media (max-width:560px){.judge-h{font-size:21px}.judge-band{border-radius:22px}}

/* ===== v3 手机端适配：彻底消除左右横向溢出（原来是 .hero{overflow:visible} 让光斑把页面撑宽 140px） ===== */
html { overflow-x: hidden; }
body { overflow-x: clip; max-width: 100%; }
@media (max-width: 860px) {
  /* 手机上手势优先：光斑缩小、少一点模糊，滚动更顺 */
  .orb { filter: blur(46px); opacity: .42; }
  .orb-a { width: 340px; height: 340px; top: -130px; right: -150px; }
  .orb-b { width: 300px; height: 300px; bottom: -170px; left: -140px; }
  /* 长词/长串（价格、型号、英文）不撑破屏幕 */
  h1, h2, h3, p, li, .sub, .judge-h, .judge-now, .prod-list li { overflow-wrap: anywhere; word-break: break-word; }
  .container { padding-left: 16px; padding-right: 16px; }
}
/* ===== v4 手机端：一行化 + 居中 + 紧凑（解决“文字墙 / 翻很多屏 / 偏左”） ===== */
.mb-only{display:none}
@media (max-width:640px){
  .pc-only{display:none !important}
  .mb-only{display:inline}
  .m-clamp{display:-webkit-box !important;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
  .m-clamp.m-open{-webkit-line-clamp:unset;display:block !important;overflow:visible}
  .hero-copy,.sec-head,.judge-band,.about-copy,.brain-card,.prod-card,.value-card,
  .path-card,.p-step,.deploy-card,.why-card,.faq-item,.footer-col,.cta-panel,.contact-list{text-align:center}
  .hero-actions,.hero-tags,.about-chips,.value-card ul,.prod-list li{justify-content:center}
  .prod-list{grid-template-columns:1fr}
  .sec{padding:22px 0}
  .hero{padding:60px 0 24px}
  .sec-head{margin-bottom:14px}
  .prod-grid,.value-grid,.pain-grid,.brain-grid,.path-grid,.step-grid,.deploy-grid{gap:10px}
  .prod-card,.value-card,.brain-card,.pain-card,.path-card,.deploy-card{padding:14px 13px}
  .cta-panel{padding:26px 16px}
  .hero h1,h1{font-size:26px;line-height:1.26}
  .sec-head h2,h2{font-size:20px;line-height:1.3}
  h3{font-size:16px;line-height:1.35}
  p,li{font-size:13.5px;line-height:1.62}
  .judge-band{padding:22px 16px}
  .judge-h{font-size:20px}
  .footer-grid{gap:14px}
}
/* ===== v4.1 手机端进一步瘦身：细节清单/演示窗口在手机上收起，只留结论 ===== */
@media (max-width:640px){
  .value-card ul,.deploy-card ul,.scene-card ul,.mock-window,.mock-body,.scene-visual{display:none !important}
  .values-grid,.pains-grid,.deploy-grid,.scene-grid,.path-grid{gap:8px}
  .value-card,.pain-card,.deploy-card,.scene-card,.path-card{padding:12px 12px}
  .sec{padding:18px 0}
  .sec-head{margin-bottom:10px}
  .sec-head .sub{font-size:13px}
  .brain-block{margin-top:14px}
  .brain-note{margin-top:10px;font-size:13px}
  .about-grid{gap:12px}
  .qr-card{padding:10px}
  footer .footer-grid{padding:14px 0}
  .footer-beian,.footer-copy{font-size:12px}
  .hero-tags li{font-size:11.5px;padding:5px 11px}
  .sec-head h2 br,.hero h1 br{display:none}
}
/* ===== v4.2 手机端：卡片改两列紧凑，只留结论（大幅少翻屏） ===== */
@media (max-width:640px){
  .values-grid{grid-template-columns:1fr 1fr;gap:8px}
  .value-card{padding:11px 10px}
  .value-card h3{font-size:14px;margin:4px 0 3px}
  .value-card .value-ic{width:26px;height:26px;margin-bottom:5px}
  .value-card .value-line{display:none}
  .value-card p.m-clamp{-webkit-line-clamp:2}
  .pains-grid{grid-template-columns:1fr 1fr;gap:8px}
  .pain-card{padding:11px 10px}
  .pain-card p{font-size:12.5px}
  .brain-card{padding:10px}
  .path-card{padding:11px 10px}
  .path-card .path-list,.path-card .path-steps{display:none}
  .paths-head h3{font-size:16px}
  .deploy-card{padding:11px 10px}
  .deploy-card ul{display:none}
  .industry-grid{grid-template-columns:1fr 1fr;gap:7px}
  .ind-card{padding:9px 8px}
  .ind-card p{font-size:12px}
  .aihard-grid,.hard-grid{grid-template-columns:1fr;gap:8px}
}
/* ===== v4.3 手机端最后一轮收紧：交互地图收起、间距再压，优先"少翻屏" ===== */
@media (max-width:640px){
  .map-body,.map-stage{display:none !important}
  .map-panel{padding:12px}
  .sec{padding:16px 0}
  .sec-head h2,h2{font-size:19px}
  .hero h1,h1{font-size:24px}
  h3{font-size:15px}
  p,li{font-size:13px}
  .prod-qr svg{width:88px;height:88px}
  .prod-qr{padding:8px}
  .cta-panel{padding:22px 14px}
  .sol-row{padding:11px 12px}
  .contact-list div{padding:9px 0}
  .footer-grid{padding:12px 0;gap:12px}
  .prod-demo{font-size:13px}
}
/* ===== v5 手机端：整节文字一律居中（彻底消除偏左）+ 大幅压缩高度 ===== */
@media (max-width:640px){
  /* ① 居中：整节所有文字（输入框/图标除外），列表符号也收进内容区 */
  .sec, .sec *:not(input):not(textarea):not(select):not(svg):not(path):not(canvas){ text-align:center; }
  .sec ul,.sec ol{padding-left:0}
  .sec li{list-style-position:inside}
  .sec [class*="row"],.sec [class*="list"],.sec [class*="card"],.sec [class*="grid"]>*{justify-content:center}

  /* ② 压缩：区块、卡片、间距、字号再收一档 */
  .sec{padding:13px 0}
  .sec-head{margin-bottom:9px}
  .hero{padding:52px 0 20px}
  .prod-grid,.value-grid,.pain-grid,.brain-grid,.path-grid,.step-grid,.deploy-grid,
  .scene-grid,.ind-grid,.industry-grid,.why-grid,.sol-list,.solutions-list{gap:6px}
  .prod-card,.value-card,.brain-card,.pain-card,.path-card,.deploy-card,.scene-card,
  .why-card,.ind-card,.sol-row{padding:9px 10px}
  p,li{font-size:12.5px;line-height:1.55}
  h3{font-size:14.5px}
  h4{font-size:13.5px}
  .sec-head h2,h2{font-size:18px;line-height:1.28}
  .hero h1,h1{font-size:22px}
  .eyebrow{font-size:11.5px}
  .judge-band{padding:16px 14px}
  .judge-h{font-size:18px}
  .judge-sub,.judge-now{margin-top:9px}

  /* ③ 结构优化：次要信息在手机上收起，只留结论 */
  .prod-card:nth-child(n+3) p{display:none}          /* 后三张（开发中/规划中）只留标题+状态 */
  .prod-card:nth-child(n+3) .prod-qr{display:none}
  .prod-card:nth-child(n+3){padding:9px 10px}
  .deploy-grid{grid-template-columns:1fr 1fr}         /* 部署方式三张卡：两列 */
  .industry-grid,.ind-grid{grid-template-columns:1fr 1fr 1fr}
  .brain-grid{grid-template-columns:1fr}
  .brain-card p{display:none}                          /* 三样东西：只留标题，正文收起 */
  .brain-note{font-size:12.5px;margin-top:8px}
  .why-grid .why-list,.why-grid ul{display:none}
  .solutions-list .sol-body p:nth-child(n+2){display:none}
  .cta-panel{padding:18px 13px}
  .cta-actions{gap:8px}
  .cta-actions .btn,.btn{font-size:13px;padding:11px 14px}
  .contact-list div{padding:6px 0;font-size:12.5px}
  .footer-grid{padding:10px 0;gap:10px;font-size:12.5px}
  .prod-qr svg{width:78px;height:78px}
  .qr-box{width:104px;height:104px}
  .about-chips span,.hero-tags li{font-size:11px;padding:4px 9px}
  .sec-head .sub{margin-top:6px}
}
/* ===== v5.1 手机端：hero 与页脚也居中；去掉浮动装饰；再压一档 ===== */
@media (max-width:640px){
  footer,footer *:not(svg):not(path):not(input){text-align:center}
  footer .footer-grid,footer ul,footer nav{justify-content:center;align-items:center}
  footer ul{padding:0;list-style:none}
  .hero .float-chip,.float-chip{display:none !important}   /* 浮动小卡片：手机上收起，画面更干净 */
  .hero-copy,.hero-visual{text-align:center}
  main > section:not(.sec) *:not(svg):not(path){text-align:center}

  /* 继续压缩 */
  .sec{padding:11px 0}
  .sec-head{margin-bottom:8px}
  .prod-grid,.value-grid,.pain-grid,.brain-grid,.path-grid,.step-grid,.deploy-grid,.scene-grid,.industry-grid,.why-grid,.solutions-list{gap:5px}
  .prod-card,.value-card,.brain-card,.pain-card,.path-card,.deploy-card,.scene-card,.why-card,.ind-card,.sol-row{padding:8px 9px}
  p,li{font-size:12px;line-height:1.5}
  .sec-head h2,h2{font-size:17px}
  .hero h1,h1{font-size:21px}
  .prod-demo{display:none}                     /* 有二维码就不必再放文字按钮 */
  .cta-fit{display:none}
  .cta-panel{padding:15px 12px}
  .btn{padding:10px 13px;font-size:12.5px}
  .about-lead,.sub,.path-desc{font-size:12.5px}
  .judge-h{font-size:17px}
  .ind-card h4,.value-card h3{font-size:13px}
}
/* ===== v5.2 手机端收尾：弹层居中 + 再压一档 ===== */
@media (max-width:640px){
  .ai-sheet,.ai-sheet *:not(svg):not(path),.overlay .sheet,.modal *:not(svg):not(path){text-align:center}
  .ai-sheet .ai-sheet-list,.ai-sheet ul{padding-left:0;list-style:none}
  .sec{padding:9px 0}
  .sec-head{margin-bottom:7px}
  .prod-grid,.value-grid,.pain-grid,.brain-grid,.path-grid,.step-grid,.deploy-grid,.scene-grid,.industry-grid,.why-grid,.solutions-list{gap:4px}
  .prod-card,.value-card,.brain-card,.pain-card,.path-card,.deploy-card,.scene-card,.why-card,.ind-card,.sol-row{padding:7px 8px}
  p,li{font-size:11.5px;line-height:1.48}
  .sec-head h2,h2{font-size:16.5px}
  h3{font-size:13.5px}
  .qr-box{width:88px;height:88px;padding:4px}
  .qr-card{gap:10px}
  .about-chips{gap:5px;margin-top:10px}
  .industry-grid .ind-card p{display:none}
  .values-note,.deploy-cta{margin-top:8px}
  .footer-beian,.footer-copy{font-size:11.5px;line-height:1.5}
}
/* ===== v6 手机端：继续缩短（收起信息量最低的块，只留最有说服力的） ===== */
@media (max-width:640px){
  .industry-block{display:none !important}      /* 产业展示：手机上信息量最低，收起（桌面端照旧） */
  .pain-quote{display:none}                     /* 痛点金句：桌面看 */
  .values-note{display:none}
  .sec{padding:8px 0}
  .hero{padding:44px 0 16px}
  .hero-actions .btn{padding:9px 12px;font-size:12px}
  .prod-card{padding:7px 8px}
  .prod-card p{-webkit-line-clamp:2}
  .prod-qr svg{width:72px;height:72px}
  .qr-box{width:78px;height:78px}
  .sol-row{padding:6px 8px}
  .scene-card,.why-card,.deploy-card,.path-card{padding:6px 8px}
  .footer-grid{gap:8px;padding:8px 0}
  .sec-head .eyebrow{font-size:11px}
  .cta-panel{padding:13px 11px}
}

/* ===== 适用行业：横向滑动卡片（替换原地图区） ===== */
#industries .ind-panel{margin-top:clamp(48px,7vw,86px)}
#industries .ind-head{max-width:760px}
#industries .ind-head h3{font-size:clamp(24px,3.2vw,38px);line-height:1.25;margin:10px 0 12px}
#industries .ind-track{display:flex;gap:clamp(14px,1.6vw,20px);overflow-x:auto;scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;padding:22px 2px 26px;scrollbar-width:none;margin-top:18px}
#industries .ind-track::-webkit-scrollbar{display:none}
#industries .ind-card{flex:0 0 clamp(268px,30vw,360px);scroll-snap-align:start;background:#fff;border:1px solid rgba(0,0,0,.07);
  border-radius:22px;padding:24px 22px 22px;box-shadow:0 10px 30px rgba(20,20,40,.06);
  display:flex;flex-direction:column;gap:10px;transition:transform .35s cubic-bezier(.22,.61,.36,1),box-shadow .35s}
#industries .ind-card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(20,20,40,.12)}
#industries .ind-no{font:600 11px/1 ui-monospace,monospace;letter-spacing:.14em;color:#b98c91}
#industries .ind-card h4{font-size:20px;margin:0;font-weight:600}
#industries .ind-q{margin:0;font-size:13.5px;line-height:1.75;color:#6e6e73}
#industries .ind-card ul{margin:4px 0 0;padding-left:18px;display:flex;flex-direction:column;gap:7px}
#industries .ind-card li{font-size:13px;line-height:1.7;color:#3a3a3c}
#industries .ind-card li strong{color:#0071e3}
#industries .ind-hint{margin-top:6px;font-size:12px;color:#8a8a8e;display:flex;align-items:center;gap:8px}
#industries .ind-hint .hint-dot{width:6px;height:6px;border-radius:50%;background:#b98c91;display:inline-block}
@media (max-width:720px){
  #industries .ind-card{flex-basis:82vw;padding:20px 18px}
  #industries .ind-card h4{font-size:18px}
}