/* ============================================================
   映视 AIGEO 认知页 · 样式
   风格：深色科技感 · 紫蓝渐变 · 玻璃拟态
   ============================================================ */

:root {
  --bg-0: #070a1f;
  --bg-1: #0c1130;
  --bg-2: #141a4a;
  --line: rgba(255, 255, 255, .10);
  --line-2: rgba(255, 255, 255, .06);
  --text: #e8ecff;
  --text-2: #c2c9f0;
  --text-3: #aab2dd;
  --text-4: #8a92c0;
  --text-5: #5f6790;
  --accent: #7fd8ff;       /* 青色 · 高亮 */
  --accent-2: #5b6bff;     /* 蓝色 · 主调 */
  --accent-3: #9b4dff;     /* 紫色 · 副调 */
  --warm: #ffd27f;         /* 暖色点缀 */
  --danger: #ff8fa3;       /* 风险色 */
  --bg-card: rgba(255, 255, 255, .045);
  --bg-card-2: rgba(91, 107, 255, .10);
  --radius: 16px;
  --radius-sm: 12px;
  --maxw: 1080px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
               "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg-0);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

::selection { background: rgba(127, 216, 255, .35); color: #fff; }

/* ===== 顶部导航 ===== */
.aig-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: rgba(7, 10, 31, .72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line-2);
  z-index: 100;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.aig-nav.is-scrolled {
  background: rgba(7, 10, 31, .92);
  border-bottom-color: var(--line);
}
.aig-nav__inner {
  max-width: 1280px;
  height: 100%;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.aig-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.aig-brand__mark {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  display: grid; place-items: center;
  box-shadow: 0 4px 12px rgba(91, 107, 255, .4);
}
.aig-brand__name {
  display: flex; flex-direction: column;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
}
.aig-brand__name small {
  font-size: 9px;
  letter-spacing: 1.5px;
  color: var(--text-4);
  font-weight: 500;
  margin-top: 2px;
}
.aig-nav__title {
  font-size: 14px;
  color: var(--text-3);
  letter-spacing: .5px;
}
.aig-nav__title b {
  background: linear-gradient(135deg, var(--accent), #9b8bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
}
.aig-nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.aig-nav__links a {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-3);
  transition: color .2s var(--ease), background .2s var(--ease);
  white-space: nowrap;
}
.aig-nav__links a:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.aig-nav__links a.is-active {
  color: var(--accent);
  background: rgba(127, 216, 255, .12);
  font-weight: 600;
}
.aig-nav__cta {
  padding: 8px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
  box-shadow: 0 4px 14px rgba(91, 107, 255, .35);
}
.aig-nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(91, 107, 255, .5);
}
.aig-nav__progress {
  position: absolute;
  bottom: 0; left: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-3));
  transition: width .15s linear;
}

/* ===== 侧边目录 ===== */
.aig-toc {
  position: fixed;
  top: 96px;
  right: 24px;
  width: 200px;
  padding: 18px 16px;
  background: rgba(20, 26, 74, .55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 14px;
  z-index: 50;
  max-height: calc(100vh - 130px);
  overflow-y: auto;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.aig-toc::-webkit-scrollbar { width: 4px; }
.aig-toc::-webkit-scrollbar-thumb { background: var(--line); border-radius: 2px; }
.aig-toc__head {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-4);
  text-transform: uppercase;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-2);
}
.aig-toc__list { display: flex; flex-direction: column; gap: 2px; }
.aig-toc__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-3);
  transition: background .2s var(--ease), color .2s var(--ease);
}
.aig-toc__list a span {
  font-size: 10px;
  font-weight: 800;
  color: var(--text-5);
  width: 18px;
  flex-shrink: 0;
}
.aig-toc__list a:hover { background: rgba(127, 216, 255, .08); color: var(--text); }
.aig-toc__list a.is-active {
  background: linear-gradient(90deg, rgba(127, 216, 255, .14), rgba(155, 77, 255, .10));
  color: var(--accent);
}
.aig-toc__list a.is-active span { color: var(--accent); }

.aig-toc-toggle {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  color: #fff;
  border: none;
  cursor: pointer;
  z-index: 60;
  box-shadow: 0 8px 24px rgba(91, 107, 255, .5);
  align-items: center;
  justify-content: center;
}
.aig-toc-toggle svg { width: 22px; height: 22px; }

/* ===== 主内容 ===== */
.aig-main {
  padding-top: 64px;
  position: relative;
  overflow: hidden;
}

/* 光晕背景 */
.aig-glow {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  filter: blur(110px);
  pointer-events: none;
  z-index: 0;
}
.aig-glow--1 {
  top: -160px; right: -180px;
  background: var(--accent-2);
  opacity: .42;
}
.aig-glow--2 {
  bottom: -200px; left: -200px;
  background: var(--accent-3);
  opacity: .38;
}

/* ===== HERO ===== */
.aig-hero {
  position: relative;
  padding: 100px 28px 80px;
  text-align: center;
  overflow: hidden;
}
.aig-hero__inner {
  max-width: 820px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.aig-hero__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: #9fb0ff;
  letter-spacing: 1.5px;
  margin-bottom: 28px;
}
.aig-hero__brand .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  box-shadow: 0 0 12px rgba(127, 216, 255, .5);
}
.aig-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--accent);
  border: 1px solid rgba(127, 216, 255, .35);
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 24px;
  background: rgba(127, 216, 255, .06);
}
.aig-h1 {
  font-size: clamp(36px, 6vw, 60px);
  line-height: 1.2;
  font-weight: 800;
  color: #fff;
  letter-spacing: -.5px;
  margin-bottom: 24px;
}
.aig-grad {
  background: linear-gradient(135deg, var(--accent), #9b8bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.aig-sub {
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--text-2);
  line-height: 1.75;
  max-width: 680px;
  margin: 0 auto 36px;
}
.aig-hero__cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.aig-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
  white-space: nowrap;
}
.aig-btn--primary {
  background: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  color: #fff;
  box-shadow: 0 6px 20px rgba(91, 107, 255, .35);
}
.aig-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(91, 107, 255, .5);
}
.aig-btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.aig-btn--ghost:hover {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .25);
}
.aig-btn--lg { padding: 16px 32px; font-size: 15px; }

.aig-hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  max-width: 720px;
  margin: 0 auto;
  padding: 20px;
  background: rgba(255, 255, 255, .03);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.aig-hero__stats > div {
  text-align: center;
  padding: 6px 4px;
  border-right: 1px solid var(--line-2);
}
.aig-hero__stats > div:last-child { border-right: none; }
.aig-hero__stats b {
  display: block;
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), #9b8bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -.5px;
}
.aig-hero__stats span {
  display: block;
  font-size: 11.5px;
  color: var(--text-4);
  margin-top: 4px;
  line-height: 1.4;
}

/* ===== Section 通用 ===== */
.aig-sec {
  position: relative;
  padding: 80px 28px;
  z-index: 1;
}
.aig-sec:nth-child(even) {
  background: linear-gradient(180deg, transparent, rgba(91, 107, 255, .04), transparent);
}
.aig-sec__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  position: relative;
}
.aig-sec__head {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 32px;
}
.aig-sec__no {
  flex-shrink: 0;
  font-size: 16px;
  font-weight: 800;
  color: #0a0e27;
  background: linear-gradient(135deg, var(--accent), #9b8bff);
  border-radius: 10px;
  padding: 7px 12px;
  min-width: 42px;
  text-align: center;
  box-shadow: 0 4px 14px rgba(127, 216, 255, .25);
}
.aig-sec__title {
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
}
.aig-sec__title small {
  display: block;
  font-size: 13px;
  color: var(--text-4);
  font-weight: 500;
  margin-top: 6px;
  letter-spacing: .5px;
}

.aig-mt { margin-top: 20px; }

/* 卡片 */
.aig-card {
  padding: 24px 26px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-2);
}
.aig-card p { margin: 0; }
.aig-card p + p { margin-top: 12px; }
.aig-card--lead {
  font-size: 15.5px;
  line-height: 1.85;
}
.aig-card b, .aig-card strong { color: #fff; font-weight: 700; }
.aig-card .hl { color: var(--accent); font-weight: 700; }
.aig-card .hl-red { color: var(--danger); font-weight: 700; }

.aig-em {
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(127, 216, 255, .08);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
}

.aig-quote-list {
  margin: 18px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.aig-quote-list li {
  position: relative;
  padding: 12px 18px 12px 44px;
  background: rgba(91, 107, 255, .10);
  border: 1px solid rgba(91, 107, 255, .25);
  border-radius: 10px;
  color: var(--text);
  font-size: 14.5px;
  font-style: italic;
}
.aig-quote-list li::before {
  content: "“";
  position: absolute;
  left: 14px;
  top: 4px;
  font-size: 28px;
  color: var(--accent);
  line-height: 1;
  font-family: Georgia, serif;
}

/* 数据三栏 */
.aig-stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.aig-stat {
  padding: 26px 22px;
  background: rgba(127, 216, 255, .06);
  border: 1px solid rgba(127, 216, 255, .22);
  border-radius: var(--radius);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.aig-stat:hover {
  transform: translateY(-3px);
  border-color: rgba(127, 216, 255, .45);
}
.aig-stat__n {
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), #9b8bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -.5px;
  margin-bottom: 8px;
}
.aig-stat__t {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.55;
}

/* 原因卡片（4格） */
.aig-reason {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.aig-reason__item {
  padding: 22px 24px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.aig-reason__item:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 210, 127, .35);
}
.aig-reason__h {
  font-size: 17px;
  font-weight: 700;
  color: var(--warm);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.aig-reason__h::before {
  content: "";
  width: 4px; height: 18px;
  background: var(--warm);
  border-radius: 2px;
}
.aig-reason__d {
  font-size: 13.5px;
  color: var(--text-3);
  line-height: 1.65;
}

/* 原理三段 */
.aig-principle {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.aig-principle__item {
  padding: 24px 22px;
  background: var(--bg-card-2);
  border: 1px solid rgba(91, 107, 255, .30);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: transform .3s var(--ease);
}
.aig-principle__item:hover { transform: translateY(-3px); }
.aig-principle__item::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-2), var(--accent-3));
}
.aig-principle__step {
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.aig-principle__t {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}
.aig-principle__d {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.6;
}

/* 风险卡 */
.aig-risk {
  padding: 28px 30px;
  background: linear-gradient(160deg, rgba(255, 99, 132, .08), rgba(255, 99, 132, .04));
  border: 1px solid rgba(255, 99, 132, .30);
  border-radius: var(--radius);
  font-size: 15.5px;
  line-height: 1.85;
  color: #ffd0d8;
  position: relative;
  overflow: hidden;
}
.aig-risk::before {
  content: "⚠️";
  position: absolute;
  top: 18px; right: 22px;
  font-size: 26px;
  opacity: .5;
}
.aig-risk p { margin: 0; }
.aig-risk p + p { margin-top: 10px; }
.aig-risk b { color: var(--danger); font-weight: 700; }

/* 能力卡（4格） */
.aig-cap {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.aig-cap__item {
  padding: 24px 26px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.aig-cap__item:hover {
  transform: translateY(-3px);
  border-color: rgba(127, 216, 255, .35);
}
.aig-cap__t {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.aig-cap__d {
  font-size: 13.5px;
  color: var(--text-3);
  line-height: 1.7;
}

/* 流程 5 步 */
.aig-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.aig-flow__step {
  padding: 22px 14px;
  background: var(--bg-card-2);
  border: 1px solid rgba(91, 107, 255, .30);
  border-radius: var(--radius-sm);
  text-align: center;
  position: relative;
  transition: transform .3s var(--ease);
}
.aig-flow__step:hover { transform: translateY(-3px); }
.aig-flow__n {
  font-size: 13px;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: .5px;
  margin-bottom: 8px;
}
.aig-flow__s {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
}

/* 模型覆盖 */
.aig-cov-summary {
  padding: 16px 20px;
  background: rgba(127, 216, 255, .10);
  border: 1px solid rgba(127, 216, 255, .30);
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: #dfe3ff;
  line-height: 1.6;
  margin-bottom: 28px;
}
.aig-cov-summary b { color: var(--accent); font-weight: 700; }

.aig-model-group { margin-top: 22px; }
.aig-model-group__h {
  font-size: 13px;
  color: #9fb0ff;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.aig-chips {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.aig-chips span {
  background: rgba(127, 216, 255, .08);
  border: 1px solid rgba(127, 216, 255, .25);
  color: #bfeaff;
  font-size: 13px;
  padding: 7px 14px;
  border-radius: 999px;
  transition: transform .2s var(--ease), background .2s var(--ease);
}
.aig-chips span:hover {
  transform: translateY(-2px);
  background: rgba(127, 216, 255, .16);
}
.aig-chips span b { color: #fff; font-weight: 700; margin-right: 2px; }

/* 分隔线 */
.aig-divider {
  max-width: var(--maxw);
  height: 1px;
  margin: 0 auto;
  background: linear-gradient(90deg, transparent, rgba(155, 139, 255, .4), transparent);
}

/* CTA */
.aig-cta {
  position: relative;
  padding: 100px 28px;
  text-align: center;
  overflow: hidden;
}
.aig-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(91, 107, 255, .15), transparent 70%);
  pointer-events: none;
}
.aig-cta__inner {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
}
.aig-cta h2 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.3;
  font-weight: 800;
  color: #fff;
  margin-bottom: 18px;
}
.aig-cta h2 b {
  background: linear-gradient(135deg, var(--accent), #9b8bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.aig-cta p {
  font-size: 16px;
  color: var(--text-2);
  margin-bottom: 36px;
  line-height: 1.7;
}
.aig-cta__btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* 页脚 */
.aig-foot {
  padding: 40px 28px 60px;
  border-top: 1px solid var(--line-2);
}
.aig-foot__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  text-align: center;
}
.aig-foot__brand { color: var(--text-3); font-size: 14px; }
.aig-foot__sep { color: var(--text-5); margin: 0 6px; }
.aig-foot__big {
  font-size: 16px;
  color: var(--text);
  font-weight: 700;
  background: linear-gradient(90deg, var(--accent), #9b8bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.aig-foot__note {
  font-size: 11.5px;
  color: var(--text-5);
  line-height: 1.6;
  max-width: 760px;
}

/* 滚动渐入 */
.aig-sec { opacity: 0; transform: translateY(20px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.aig-sec.is-visible { opacity: 1; transform: none; }

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .aig-toc { display: none; }
  .aig-toc.is-open {
    display: block;
    top: auto;
    bottom: 90px;
    right: 16px;
    left: 16px;
    width: auto;
    max-height: 50vh;
  }
  .aig-toc-toggle { display: flex; }
  .aig-nav__links { display: none; }
}

@media (max-width: 768px) {
  .aig-nav__inner { padding: 0 18px; gap: 12px; }
  .aig-nav__cta { padding: 7px 12px; font-size: 12px; }
  .aig-brand__name small { display: none; }

  .aig-hero { padding: 60px 20px 60px; }
  .aig-h1 { font-size: 32px; }
  .aig-hero__stats { grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 14px; }
  .aig-hero__stats > div:nth-child(2) { border-right: none; }
  .aig-hero__stats b { font-size: 18px; }
  .aig-hero__stats span { font-size: 10.5px; }

  .aig-sec { padding: 50px 20px; }
  .aig-sec__head { gap: 12px; margin-bottom: 24px; }
  .aig-sec__no { font-size: 14px; padding: 6px 10px; min-width: 36px; }
  .aig-sec__title { font-size: 19px; }
  .aig-sec__title small { font-size: 12px; }

  .aig-stat-row { grid-template-columns: 1fr; }
  .aig-reason { grid-template-columns: 1fr; }
  .aig-principle { grid-template-columns: 1fr; }
  .aig-cap { grid-template-columns: 1fr; }
  .aig-flow { grid-template-columns: repeat(2, 1fr); }
  .aig-cta { padding: 60px 20px; }
  .aig-foot { padding: 30px 20px 40px; }
}

@media (max-width: 480px) {
  .aig-flow { grid-template-columns: 1fr; }
  .aig-hero__stats { grid-template-columns: 1fr 1fr; }
}