/* =========================================================
   FlAi 官网落地页样式
   纯本地样式 · 零外部依赖
   ========================================================= */

/* ---------- CSS 变量统一管理配色 ---------- */
:root {
  --primary: #FF5C8A;          /* 主色：恋爱温暖粉 */
  --primary-deep: #E8436F;     /* 主色深 */
  --primary-light: #FFE9F1;    /* 主色浅 */
  --purple: #8B5CF6;           /* 辅助紫 */
  --gradient: linear-gradient(135deg, #FF7AA8 0%, #A78BFA 100%);
  --dark: #2B2130;             /* 深色文字 */
  --gray: #6B6472;             /* 次级文字 */
  --border: #F3DCE5;           /* 浅色边框 */
  --bg: #FFF8FB;               /* 页面背景 */
  --card: #FFFFFF;             /* 卡片背景 */
  --radius: 16px;              /* 卡片圆角 */
  --shadow: 0 8px 24px rgba(255, 92, 138, .10);
  --shadow-hover: 0 14px 34px rgba(255, 92, 138, .20);
  --nav-h: 64px;
}

/* ---------- 基础重置 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--dark);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 20px rgba(255, 92, 138, .35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(255, 92, 138, .45); }
.btn-outline {
  background: #fff;
  color: var(--primary-deep);
  border-color: var(--primary);
}
.btn-outline:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(255, 92, 138, .22); }
.btn-nav { font-size: 14px; padding: 8px 20px; }
.btn-lg { font-size: 17px; padding: 15px 42px; }
.btn-dl { font-size: 16px; padding: 15px 40px; }

/* ---------- 1. 顶部固定粘性导航栏 ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255, 248, 251, .92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.nav-inner {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-deep);
  letter-spacing: .5px;
}
.logo em {
  font-style: normal;
  font-size: 13px;
  font-weight: 600;
  color: var(--purple);
  margin-left: 4px;
  vertical-align: middle;
}
.menu { display: flex; gap: 26px; }
.menu a {
  font-size: 15px;
  color: var(--gray);
  font-weight: 500;
  transition: color .2s ease;
}
.menu a:hover, .menu a.active { color: var(--primary-deep); }

/* ---------- 2. 首屏 Hero ---------- */
.hero {
  padding: calc(var(--nav-h) + 56px) 0 80px;
  background:
    radial-gradient(1200px 520px at 12% -10%, #FFE3F0 0%, transparent 60%),
    radial-gradient(900px 480px at 92% 8%, #F0E9FF 0%, transparent 55%),
    linear-gradient(180deg, #FFF3F8 0%, var(--bg) 100%);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.hero-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-deep);
  background: var(--primary-light);
  border: 1px solid #FFD3E3;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero-text h1 {
  font-size: 52px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: .5px;
}
.hero-text h1 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-desc {
  margin-top: 20px;
  font-size: 16.5px;
  color: var(--gray);
  max-width: 560px;
}
.hero-personas { margin: 26px 0 30px; }
.personas-label {
  display: block;
  font-size: 14px;
  color: var(--dark);
  font-weight: 600;
  margin-bottom: 14px;
}
.personas-row { display: flex; gap: 12px; }
.p-avatar {
  position: relative;
  width: 56px; height: 56px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid #fff;
  box-shadow: 0 4px 12px rgba(255, 92, 138, .22);
  transition: transform .25s ease;
}
.p-avatar:hover { transform: translateY(-4px) scale(1.05); }
.p-avatar img { width: 100%; height: 100%; object-fit: cover; }
.p-avatar i {
  position: absolute;
  left: 50%; bottom: -1px;
  transform: translateX(-50%);
  font-style: normal;
  font-size: 10px;
  color: #fff;
  background: rgba(43, 33, 48, .55);
  padding: 0 6px;
  border-radius: 6px;
  line-height: 14px;
}
.p-custom { border-style: dashed; border-color: var(--purple); }

/* 手机聊天窗口（陌陌风格） */
.phone {
  width: 340px;
  margin: 0 auto;
  border-radius: 34px;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: 0 30px 60px rgba(255, 92, 138, .18);
  overflow: hidden;
}
.phone-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 0 8px;
  background: #fff;
}
.p-time { font-size: 12px; color: var(--dark); font-weight: 600; }
.p-speaker {
  width: 70px; height: 18px;
  border-radius: 10px;
  background: #111;
}
.chat-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: linear-gradient(135deg, #FFE9F1, #F3ECFF);
  border-bottom: 1px solid var(--border);
}
.chat-head img {
  width: 40px; height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #fff;
}
.chat-head-info { flex: 1; }
.chat-name { font-size: 14px; font-weight: 700; }
.chat-status { font-size: 11px; color: var(--primary-deep); }
.chat-status i {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22C55E;
  margin-right: 4px;
  vertical-align: 1px;
}
.chat-more { color: var(--gray); font-size: 14px; letter-spacing: 2px; }
.chat-body {
  height: 330px;
  overflow: hidden;
  padding: 12px 12px 6px;
  background: #FFFDFE;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chat-time {
  align-self: center;
  font-size: 11px;
  color: var(--gray);
  background: #F5F1F4;
  padding: 2px 10px;
  border-radius: 8px;
}
.msg {
  max-width: 78%;
  padding: 8px 13px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.6;
  animation: msgIn .4s ease both;
}
.msg.ai {
  align-self: flex-start;
  background: #fff;
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}
.msg.user {
  align-self: flex-end;
  background: var(--gradient);
  color: #fff;
  border-bottom-right-radius: 4px;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.chat-input {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: #fff;
  border-top: 1px solid var(--border);
}
.ci-emoji, .ci-voice { font-size: 16px; }
.ci-text {
  flex: 1;
  font-size: 12px;
  color: #B8B0BA;
  background: #F5F1F4;
  border-radius: 999px;
  padding: 7px 14px;
}

/* ---------- 通用区块 ---------- */
section { padding: 84px 0; }
.sec-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.sec-sub {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-deep);
  background: var(--primary-light);
  border: 1px solid #FFD3E3;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.sec-head h2 { font-size: 34px; font-weight: 800; line-height: 1.3; }
.sec-head p { margin-top: 12px; color: var(--gray); font-size: 16px; }

/* 卡片通用 */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform .3s ease, box-shadow .3s ease;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

/* ---------- 3. 三步上手 ---------- */
.steps { background: #fff; }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.step-card {
  position: relative;
  padding: 34px 28px;
  overflow: hidden;
}
.step-num {
  font-size: 42px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  opacity: .55;
  display: block;
  margin-bottom: 12px;
}
.step-card h3 { font-size: 20px; margin-bottom: 10px; }
.step-card p { color: var(--gray); font-size: 15px; }

/* ---------- 4. 产品介绍 ---------- */
.intro-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.intro-shots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: start;
}
.shot {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: #fff;
}
.shot:nth-child(2) { margin-top: 26px; }
.shot img { width: 100%; object-fit: cover; }
.intro-text h3 { font-size: 26px; margin-bottom: 16px; }
.intro-text p { color: var(--gray); font-size: 15.5px; margin-bottom: 14px; }
.intro-list { margin-top: 8px; }
.intro-list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 10px;
}
.intro-list li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 0;
  width: 18px; height: 18px;
  background: var(--gradient);
  color: #fff;
  border-radius: 50%;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* ---------- 5. 四大核心功能 ---------- */
.features { background: #fff; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.f-card { padding: 28px 24px; }
.f-icon {
  display: inline-flex;
  width: 52px; height: 52px;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: var(--primary-light);
  border-radius: 14px;
  margin-bottom: 16px;
}
.f-card h3 { font-size: 19px; margin-bottom: 8px; }
.f-solve {
  font-size: 13.5px;
  color: var(--primary-deep);
  background: #FFF0F5;
  border-radius: 10px;
  padding: 8px 12px;
  margin-bottom: 12px;
}
.f-card p:last-child { color: var(--gray); font-size: 14.5px; }

/* ---------- 6. 优势对比 ---------- */
.cmp-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  background: #fff;
}
.cmp-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.cmp-table th, .cmp-table td {
  padding: 16px 22px;
  text-align: center;
  font-size: 15px;
  border-bottom: 1px solid var(--border);
}
.cmp-table th {
  background: var(--primary-light);
  color: var(--dark);
  font-weight: 700;
}
.cmp-table td { color: var(--gray); }
.cmp-table tbody tr:hover td { background: #FFF7FA; }
.cmp-table .cmp-me { color: var(--primary-deep); font-weight: 700; }

/* ---------- 7. 使用场景 ---------- */
.scene-list {
  max-width: 720px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 32px;
}
.scene-list li {
  font-size: 15.5px;
  font-weight: 500;
  color: var(--dark);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  box-shadow: var(--shadow);
  transition: transform .3s ease, box-shadow .3s ease;
}
.scene-list li:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.vs-box {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  margin-top: 44px;
}
.vs-side {
  border-radius: var(--radius);
  padding: 30px 28px;
  text-align: center;
}
.vs-side h3 { font-size: 20px; margin-bottom: 12px; }
.vs-side p { font-size: 14.5px; color: var(--gray); }
.vs-bad {
  background: #F5F1F4;
  border: 1px solid #E7DEE3;
}
.vs-bad h3 { color: #8A7F88; }
.vs-good {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 14px 30px rgba(255, 92, 138, .28);
}
.vs-good p { color: rgba(255, 255, 255, .92); }
.vs-arrow {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary-deep);
  background: var(--primary-light);
  border-radius: 50%;
  width: 60px; height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- 8. 数据模块 ---------- */
.data { background: #fff; }
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.data-card { text-align: center; padding: 36px 20px; }
.data-num {
  display: block;
  font-size: 40px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.data-num span { font-size: 22px; }
.data-card p { margin-top: 8px; color: var(--gray); font-size: 15px; }

/* ---------- 9. 人设定制 ---------- */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.persona-card { padding: 30px 26px; text-align: center; }
.persona-avatar {
  position: relative;
  width: 96px; height: 96px;
  margin: 0 auto 18px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid #fff;
  box-shadow: 0 8px 20px rgba(255, 92, 138, .25);
}
.persona-avatar img { width: 100%; height: 100%; object-fit: cover; }
.persona-avatar span {
  position: absolute;
  right: -4px; bottom: -4px;
  width: 30px; height: 30px;
  background: var(--gradient);
  color: #fff;
  border: 2px solid #fff;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.persona-card h3 { font-size: 20px; margin-bottom: 10px; }
.persona-card p { color: var(--gray); font-size: 14.5px; margin-bottom: 16px; }
.p-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--purple);
  background: #F3ECFF;
  border: 1px solid #E4D7FF;
  padding: 3px 12px;
  border-radius: 999px;
}
.persona-custom .p-tag { color: var(--primary-deep); background: var(--primary-light); border-color: #FFD3E3; }
.persona-custom .persona-avatar { border-style: dashed; border-color: var(--purple); }

/* ---------- 10. 用户评价 ---------- */
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.review-card { padding: 26px 24px; }
.rv-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.rv-avatar {
  width: 46px; height: 46px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 14px rgba(255, 92, 138, .3);
}
.rv-user { display: flex; flex-direction: column; }
.rv-name { font-size: 15px; font-weight: 700; }
.rv-stars { font-size: 13px; color: #FFB23E; letter-spacing: 2px; }
.rv-text { color: var(--gray); font-size: 14.5px; }

/* ---------- 11. 隐私安全 ---------- */
.privacy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.pv-card { padding: 28px 24px; text-align: center; }
.pv-icon {
  display: inline-flex;
  width: 56px; height: 56px;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  background: var(--primary-light);
  border-radius: 16px;
  margin-bottom: 16px;
}
.pv-card h3 { font-size: 18px; margin-bottom: 10px; }
.pv-card p { color: var(--gray); font-size: 14px; }

/* ---------- 12. 版本更新 ---------- */
.update-card {
  max-width: 780px;
  margin: 0 auto;
  padding: 34px 36px;
}
.update-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}
.u-version {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary-deep);
}
.u-date { font-size: 14px; color: var(--gray); }
.update-list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  color: var(--gray);
  margin-bottom: 12px;
}
.update-list li::before {
  content: "";
  position: absolute;
  left: 4px; top: 10px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gradient);
}
.update-list b {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: var(--gradient);
  border-radius: 6px;
  padding: 1px 8px;
  margin-right: 6px;
  vertical-align: 1px;
}

/* ---------- 13. FAQ ---------- */
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item { margin-bottom: 16px; overflow: hidden; }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 24px;
  background: #fff;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  font-family: inherit;
}
.faq-arrow {
  position: relative;
  width: 12px; height: 12px;
  flex-shrink: 0;
  transition: transform .3s ease;
}
.faq-arrow::before, .faq-arrow::after {
  content: "";
  position: absolute;
  background: var(--primary-deep);
  border-radius: 2px;
}
.faq-arrow::before { left: 0; top: 5px; width: 12px; height: 2px; }
.faq-arrow::after { left: 5px; top: 0; width: 2px; height: 12px; }
.faq-item.open .faq-arrow { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-a p {
  padding: 0 24px 22px;
  color: var(--gray);
  font-size: 15px;
}

/* ---------- 14. 下载区域 ---------- */
.download {
  background:
    radial-gradient(900px 420px at 50% 0%, #FFE7F0 0%, transparent 60%),
    #fff;
}
.download-card {
  max-width: 820px;
  margin: 0 auto;
  padding: 54px 40px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(255, 92, 138, .16);
}
.dl-title { font-size: 40px; font-weight: 800; }
.dl-title span {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.dl-meta { margin-top: 14px; font-size: 14px; color: var(--gray); }
.dl-btns {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 34px 0 24px;
  flex-wrap: wrap;
}
.dl-tip { font-size: 15px; color: var(--dark); font-weight: 500; }

/* ---------- 15. 底部页脚 ---------- */
.footer {
  padding: 34px 0;
  background: #fff;
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer p { font-size: 14px; color: var(--gray); }
.footer-link { color: var(--primary-deep); font-weight: 700; }

/* ---------- 16. 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 26px; bottom: 34px;
  width: 48px; height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--gradient);
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(255, 92, 138, .4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all .3s ease;
  z-index: 90;
}
.back-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-top:hover { transform: translateY(-3px); }

/* ---------- 响应式：平板 ---------- */
@media (max-width: 1024px) {
  .hero-text h1 { font-size: 44px; }
  .features-grid, .privacy-grid, .data-grid { grid-template-columns: repeat(2, 1fr); }
  .persona-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .intro-wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-text { text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .personas-row { justify-content: center; }
  .steps-grid { grid-template-columns: 1fr; }
  .scene-list { grid-template-columns: 1fr; }
  .vs-box { grid-template-columns: 1fr; gap: 16px; }
  .vs-arrow { margin: 0 auto; }
  .cmp-table th, .cmp-table td { padding: 13px 14px; font-size: 14px; }
}

/* ---------- 响应式：手机 ---------- */
@media (max-width: 640px) {
  section { padding: 60px 0; }
  .nav-inner, .container { padding-left: 20px; padding-right: 20px; }
  .menu { display: none; }          /* 移动端仅显示下载按钮 */
  .logo { font-size: 21px; }
  .btn-nav { padding: 7px 16px; font-size: 13px; }
  .hero { padding-top: calc(var(--nav-h) + 40px); }
  .hero-text h1 { font-size: 32px; }
  .hero-desc { font-size: 15px; }
  .personas-row { gap: 9px; }
  .p-avatar { width: 48px; height: 48px; }
  .btn-lg { width: 100%; font-size: 16px; padding: 14px 20px; }  /* 移动端按钮满宽度居中 */
  .phone { width: 100%; max-width: 360px; }
  .chat-body { height: 320px; }
  .sec-head h2 { font-size: 26px; }
  .sec-head p { font-size: 15px; }
  .features-grid, .privacy-grid, .data-grid,
  .persona-grid, .review-grid { grid-template-columns: 1fr; }
  .intro-shots { grid-template-columns: 1fr 1fr; gap: 12px; }
  .shot:nth-child(2) { margin-top: 14px; }
  .cmp-table { min-width: 560px; }
  .update-card { padding: 26px 20px; }
  .u-version { font-size: 19px; }
  .dl-title { font-size: 28px; }
  .download-card { padding: 40px 20px; }
  .dl-btns { flex-direction: column; gap: 14px; }
  .btn-dl { width: 100%; }
  .dl-meta { font-size: 11px; }
  .dl-tip { font-size: 14px; }
  .back-top { right: 16px; bottom: 20px; width: 44px; height: 44px; font-size: 20px; }
}