/* ============================================================
   抖蓝官方网站 - 全站样式
   主体：河南抖蓝科技有限公司
   ============================================================ */

:root {
  --brand: #2563eb;
  --brand-d: #1d4ed8;
  --brand-dd: #1e3a8a;
  --brand-l: #dbeafe;
  --brand-xl: #eff6ff;
  --indigo: #4f46e5;
  --cyan: #06b6d4;
  --grad: linear-gradient(135deg, #4f46e5 0%, #2563eb 55%, #06b6d4 100%);
  --grad-soft: linear-gradient(135deg, #eff6ff 0%, #ecfeff 100%);
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #94a3b8;
  --line: #e2e8f0;
  --line-2: #f1f5f9;
  --bg: #f7f9fc;
  --card: #ffffff;
  --ok: #10b981;
  --warn: #f59e0b;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow: 0 4px 24px rgba(15, 23, 42, .06);
  --shadow-lg: 0 18px 50px rgba(37, 99, 235, .16);
  --maxw: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ============ 顶部公告 ============ */
.topbar {
  background: var(--brand-dd);
  color: #c7d8f5;
  font-size: 13px;
  text-align: center;
  padding: 8px 16px;
  letter-spacing: .2px;
}
.topbar b { color: #fff; }

/* ============ 导航 ============ */
.nav {
  position: sticky; top: 0; z-index: 200;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
  height: 68px; display: flex; align-items: center; gap: 32px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 11px;
  background: var(--grad);
  display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 19px;
  box-shadow: 0 6px 18px rgba(37, 99, 235, .35);
  flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text .cn { font-size: 19px; font-weight: 800; letter-spacing: .5px; }
.logo-text .en { font-size: 10px; color: var(--text-3); letter-spacing: 2.4px; font-weight: 600; }
/* 真实 logo 图片填充 */
.logo-mark img, .appmeta-icon img {
  width: 100%; height: 100%; border-radius: inherit; display: block; object-fit: cover;
}

.nav-links { display: flex; gap: 2px; flex: 1; }
.nav-links a {
  padding: 8px 15px; border-radius: 10px;
  font-size: 14.5px; color: var(--text-2); font-weight: 500;
  transition: .18s;
}
.nav-links a:hover { color: var(--brand); background: var(--brand-xl); }
.nav-links a.on { color: var(--brand); background: var(--brand-xl); font-weight: 600; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 10px 22px; border-radius: 24px;
  font-size: 14.5px; font-weight: 600; transition: .2s; white-space: nowrap;
}
.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 6px 20px rgba(37, 99, 235, .32);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(37, 99, 235, .42); }
.btn-ghost { background: #fff; color: var(--brand); border: 1px solid var(--brand-l); }
.btn-ghost:hover { border-color: var(--brand); background: var(--brand-xl); }
.btn-line { border: 1px solid var(--line); color: var(--text-2); background: #fff; }
.btn-line:hover { border-color: var(--brand-l); color: var(--brand); }
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: 28px; }

.nav-toggle { display: none; }

/* ============ Hero ============ */
.hero {
  position: relative; overflow: hidden;
  background: var(--grad-soft);
  border-bottom: 1px solid var(--line);
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 82% 18%, rgba(37, 99, 235, .16), transparent 46%),
    radial-gradient(circle at 12% 88%, rgba(6, 182, 212, .14), transparent 44%);
}
.hero-inner {
  position: relative; z-index: 2;
  max-width: var(--maxw); margin: 0 auto; padding: 68px 24px 60px;
  display: grid; grid-template-columns: 1.06fr .94fr; gap: 48px; align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: #fff; border: 1px solid var(--brand-l); color: var(--brand);
  font-size: 12.5px; font-weight: 600; padding: 6px 14px; border-radius: 20px;
  margin-bottom: 20px; box-shadow: 0 2px 10px rgba(37, 99, 235, .08);
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--ok);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, .18);
}
.hero h1 {
  font-size: 46px; line-height: 1.22; font-weight: 800;
  letter-spacing: -.5px; margin-bottom: 18px;
}
.hero h1 .grad {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub { font-size: 16.5px; color: var(--text-2); margin-bottom: 16px; max-width: 520px; }
.hero-desc { font-size: 14.5px; color: var(--text-2); margin-bottom: 26px; max-width: 540px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.hero-tags { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-tags span {
  font-size: 12.5px; color: var(--text-2); background: #fff;
  border: 1px solid var(--line); padding: 5px 13px; border-radius: 18px;
}

/* 手机样机 */
.phone-wrap { display: flex; justify-content: center; align-items: center; }
.phone {
  position: relative; width: 268px; height: auto;
  background: #0f172a; border-radius: 38px; padding: 11px;
  box-shadow: 0 30px 70px rgba(15, 23, 42, .28);
}
.phone::after {
  content: ""; position: absolute; top: 22px; left: 50%; transform: translateX(-50%);
  width: 88px; height: 6px; border-radius: 4px; background: #334155;
}
.screen {
  width: 100%; height: auto; aspect-ratio: 750 / 1666; border-radius: 29px; overflow: hidden;
  background: #fff; display: flex; flex-direction: column;
}
/* 真实截图填充 */
.screen-real img {
  width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block;
}
.phone:has(.screen-real)::after { display: none; }
.screen-top {
  padding: 26px 16px 12px; background: var(--grad); color: #fff;
}
.screen-top .t1 { font-size: 15px; font-weight: 700; }
.screen-top .t2 { font-size: 11px; opacity: .82; margin-top: 2px; }
.screen-body { flex: 1; padding: 12px; display: grid; grid-template-columns: 1fr 1fr; gap: 9px; align-content: start; }
.mini {
  border-radius: 11px; height: 108px; position: relative; overflow: hidden;
}
.mini .n {
  position: absolute; left: 7px; bottom: 6px; font-size: 10px; color: #fff;
  font-weight: 600; text-shadow: 0 1px 4px rgba(0, 0, 0, .55);
}
.mini .lv {
  position: absolute; top: 6px; left: 6px; font-size: 8.5px;
  background: rgba(255, 255, 255, .92); color: #dc2626; font-weight: 800;
  padding: 2px 6px; border-radius: 6px;
}
.screen-nav {
  display: flex; justify-content: space-around; padding: 9px 6px 12px;
  border-top: 1px solid var(--line-2); font-size: 9.5px; color: var(--text-3);
}
.screen-nav .act { color: var(--brand); font-weight: 700; }

/* ============ 应用信息卡 ============ */
.appmeta-sec { margin-top: -34px; position: relative; z-index: 5; }
.appmeta {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: 26px 30px;
  display: grid; grid-template-columns: 132px 1fr; gap: 30px; align-items: center;
}
.appmeta-icon {
  width: 118px; height: 118px; border-radius: 26px; background: var(--grad);
  display: grid; place-items: center; color: #fff; font-size: 44px; font-weight: 800;
  box-shadow: 0 12px 32px rgba(37, 99, 235, .3);
  letter-spacing: 1px;
}
.appmeta-title { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 4px; }
.appmeta-title h2 { font-size: 24px; font-weight: 800; }
.appmeta-title .pill {
  font-size: 11.5px; font-weight: 700; padding: 3px 10px; border-radius: 8px;
  background: var(--brand-xl); color: var(--brand); border: 1px solid var(--brand-l);
}
.appmeta-title .pill.green { background: #ecfdf5; color: #059669; border-color: #a7f3d0; }
.appmeta-slogan { color: var(--text-2); font-size: 14px; margin-bottom: 16px; }
.spec-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px 24px; }
.spec { display: flex; gap: 8px; font-size: 13.5px; align-items: baseline; }
.spec .k { color: var(--text-3); flex-shrink: 0; }
.spec .v { color: var(--text); font-weight: 600; }

/* ============ 通用区块 ============ */
.sec { padding: 72px 0; }
.sec.alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 44px; }
.sec-head .eyebrow {
  display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: 2px;
  color: var(--brand); background: var(--brand-xl); border: 1px solid var(--brand-l);
  padding: 5px 14px; border-radius: 18px; margin-bottom: 14px;
}
.sec-head h2 { font-size: 32px; font-weight: 800; letter-spacing: -.3px; margin-bottom: 12px; }
.sec-head p { color: var(--text-2); font-size: 15.5px; }
.sec-head.left { text-align: left; margin-bottom: 28px; }

/* 卡片网格 */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: .22s;
}
.card:hover { border-color: var(--brand-l); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.card .icon {
  width: 48px; height: 48px; border-radius: 14px; background: var(--brand-xl);
  display: grid; place-items: center; font-size: 23px; margin-bottom: 16px;
  border: 1px solid var(--brand-l);
}
.card h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 9px; }
.card p { font-size: 14px; color: var(--text-2); line-height: 1.8; }
/* ---- 列表：全局通用（正文、卡片、法务页均可直接使用） ---- */
ul.dot { margin-top: 10px; }
ul.dot li {
  font-size: 14px; color: var(--text-2); padding-left: 18px; position: relative;
  line-height: 1.9; margin-bottom: 6px;
}
ul.dot li::before {
  content: ""; position: absolute; left: 3px; top: 11px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--brand); opacity: .6;
}
ul.num { counter-reset: n; margin: 10px 0 14px; }
ul.num li {
  position: relative; padding-left: 26px; color: var(--text-2);
  font-size: 14.5px; margin-bottom: 9px; line-height: 1.85;
}
ul.num li::before {
  counter-increment: n; content: counter(n) ".";
  position: absolute; left: 0; top: 0; color: var(--brand); font-weight: 700; font-size: 14px;
}
/* 卡片内列表更紧凑 */
.card ul.dot { margin-top: 12px; }
.card ul.dot li { font-size: 13.5px; padding-left: 16px; }
.card ul.dot li::before { left: 2px; }

/* 介绍正文块 */
.prose-block { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px 38px; }
.prose-block h3 { font-size: 20px; font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.prose-block h3::before {
  content: ""; width: 4px; height: 20px; border-radius: 2px; background: var(--grad);
}
.prose-block p { color: var(--text-2); margin-bottom: 14px; font-size: 15px; }
.prose-block p:last-child { margin-bottom: 0; }

/* 通用提示框（正文与表格下方的补充说明） */
.note {
  background: var(--brand-xl); border-left: 3px solid var(--brand);
  border-radius: 0 12px 12px 0; padding: 14px 18px; margin: 18px 0 0;
  font-size: 14px; color: var(--brand-dd); line-height: 1.85;
}

/* ============ 数据条 ============ */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; text-align: center;
}
.stat .num {
  font-size: 30px; font-weight: 800; letter-spacing: -.5px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat .lb { font-size: 13.5px; color: var(--text-2); margin-top: 4px; }

/* ============ 表格 ============ */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 620px; }
thead th {
  background: var(--brand-xl); color: var(--brand-dd); text-align: left;
  font-weight: 700; padding: 14px 18px; font-size: 13.5px; white-space: nowrap;
}
tbody td { padding: 14px 18px; border-top: 1px solid var(--line-2); color: var(--text-2); vertical-align: top; }
tbody tr:hover { background: #fafcff; }
tbody td strong { color: var(--text); font-weight: 600; }
.badge {
  display: inline-block; font-size: 11.5px; font-weight: 700; padding: 2px 9px;
  border-radius: 7px; background: #ecfdf5; color: #059669; border: 1px solid #a7f3d0;
}
.badge.blue { background: var(--brand-xl); color: var(--brand); border-color: var(--brand-l); }

/* 键值对列表 */
.kv { display: grid; gap: 0; }
.kv-row {
  display: grid; grid-template-columns: 190px 1fr; gap: 20px;
  padding: 15px 0; border-bottom: 1px dashed var(--line);
}
.kv-row:last-child { border-bottom: none; }
.kv-row .k { color: var(--text-3); font-size: 14px; }
.kv-row .v { color: var(--text); font-size: 14.5px; font-weight: 500; word-break: break-all; }

/* ============ 时间轴 ============ */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(180deg, var(--brand-l), var(--line-2));
}
.tl-item { position: relative; padding-bottom: 30px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -30px; top: 7px;
  width: 16px; height: 16px; border-radius: 50%; background: #fff;
  border: 3px solid var(--brand); box-shadow: 0 0 0 4px var(--brand-xl);
}
.tl-item .yr { font-size: 13px; font-weight: 700; color: var(--brand); letter-spacing: .5px; }
.tl-item h4 { font-size: 16.5px; font-weight: 700; margin: 5px 0 6px; }
.tl-item p { font-size: 14px; color: var(--text-2); }

/* ============ 下载区 ============ */
.dl {
  background: var(--grad); border-radius: var(--radius-lg); padding: 46px 44px;
  color: #fff; display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: center;
  position: relative; overflow: hidden;
}
.dl::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 88% 22%, rgba(255, 255, 255, .22), transparent 46%);
}
.dl-info { position: relative; z-index: 1; }
.dl-info h3 { font-size: 28px; font-weight: 800; margin-bottom: 10px; }
.dl-info p { color: rgba(255, 255, 255, .86); font-size: 15px; margin-bottom: 22px; max-width: 520px; }
.dl-stores { display: flex; gap: 12px; flex-wrap: wrap; }
.store {
  display: flex; align-items: center; gap: 9px;
  background: rgba(255, 255, 255, .15); border: 1px solid rgba(255, 255, 255, .3);
  padding: 9px 16px; border-radius: 12px; font-size: 13.5px; font-weight: 600;
  transition: .2s; color: #fff;
}
.store:hover { background: rgba(255, 255, 255, .26); }
.qr {
  position: relative; z-index: 1; background: #fff; border-radius: 18px; padding: 14px;
  text-align: center; box-shadow: 0 18px 44px rgba(15, 23, 42, .22);
}
.qr .code { width: 138px; height: 138px; border-radius: 10px; display: block; }
.qr .cap { font-size: 12px; color: var(--text-2); margin-top: 9px; font-weight: 600; }

/* ============ 页脚 ============ */
.footer { background: #0f172a; color: #94a3b8; padding: 54px 0 26px; font-size: 13.5px; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 34px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.footer .logo-mark { box-shadow: none; }
.footer .logo-text .cn { color: #fff; }
.footer .logo-text .en { color: #64748b; }
.footer-about { margin-top: 16px; line-height: 1.9; color: #94a3b8; max-width: 330px; }
.footer h5 { color: #fff; font-size: 14.5px; font-weight: 700; margin-bottom: 16px; }
.footer li { margin-bottom: 10px; }
.footer a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 9px; line-height: 1.7; }
.footer-contact .ic { color: #60a5fa; flex-shrink: 0; }
.footer-bottom {
  padding-top: 22px; display: flex; justify-content: space-between; gap: 18px;
  flex-wrap: wrap; align-items: center; color: #64748b; font-size: 12.5px;
}
.footer-bottom a { color: #94a3b8; }
.footer-bottom a:hover { color: #fff; }
.icp { display: inline-flex; align-items: center; gap: 7px; flex-wrap: wrap; row-gap: 5px; }

/* ============ 法务页 ============ */
.page-head {
  background: var(--grad-soft); border-bottom: 1px solid var(--line);
  padding: 54px 0 46px; position: relative; overflow: hidden;
}
.page-head::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(37, 99, 235, .14), transparent 48%);
}
.page-head .inner { position: relative; z-index: 2; }
.page-head h1 { font-size: 34px; font-weight: 800; margin-bottom: 10px; letter-spacing: -.3px; }
.page-head p { color: var(--text-2); font-size: 15px; max-width: 720px; }
.page-head .meta { margin-top: 16px; font-size: 13px; color: var(--text-3); display: flex; gap: 22px; flex-wrap: wrap; }

.legal { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 44px 48px; }
.legal h2 {
  font-size: 19px; font-weight: 700; margin: 34px 0 12px;
  padding-bottom: 10px; border-bottom: 1px solid var(--line-2);
}
.legal h2:first-child { margin-top: 0; }
.legal h3 { font-size: 16px; font-weight: 700; margin: 20px 0 8px; color: var(--brand-dd); }
.legal p { color: var(--text-2); margin-bottom: 12px; font-size: 14.5px; }
.legal .note {
  background: var(--brand-xl); border-left: 3px solid var(--brand);
  border-radius: 0 12px 12px 0; padding: 14px 18px; margin: 16px 0;
  font-size: 14px; color: var(--brand-dd);
}
.legal-ft { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 13.5px; color: var(--text-3); }

/* 侧边目录 */
.legal-layout { display: grid; grid-template-columns: 232px 1fr; gap: 30px; align-items: start; }
.toc { position: sticky; top: 92px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.toc h4 { font-size: 13px; color: var(--text-3); letter-spacing: 1px; margin-bottom: 12px; font-weight: 700; }
.toc a { display: block; font-size: 13.5px; color: var(--text-2); padding: 7px 11px; border-radius: 8px; transition: .16s; }
.toc a:hover { background: var(--brand-xl); color: var(--brand); }

/* ============ 联系页 ============ */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cbox {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; text-align: center; transition: .22s;
}
.cbox:hover { border-color: var(--brand-l); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.cbox .icon {
  width: 54px; height: 54px; border-radius: 16px; margin: 0 auto 16px;
  background: var(--brand-xl); border: 1px solid var(--brand-l);
  display: grid; place-items: center; font-size: 25px;
}
.cbox h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 8px; }
.cbox .big { font-size: 17px; font-weight: 700; color: var(--brand); word-break: break-all; margin-bottom: 6px; }
.cbox p { font-size: 13.5px; color: var(--text-2); }

/* ============ 提示条 ============ */
.hint {
  display: flex; gap: 12px; align-items: flex-start;
  background: #fffbeb; border: 1px solid #fde68a; border-radius: var(--radius);
  padding: 16px 20px; font-size: 14px; color: #92400e;
}
.hint .ic { font-size: 18px; line-height: 1.4; }
.hint strong { font-weight: 700; }

/* CTA 底条 */
.cta {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 34px 38px; display: flex; align-items: center; justify-content: space-between;
  gap: 26px; flex-wrap: wrap; box-shadow: var(--shadow);
}
.cta h3 { font-size: 21px; font-weight: 700; margin-bottom: 6px; }
.cta p { color: var(--text-2); font-size: 14.5px; }
.cta .btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* ============ 响应式 ============ */
@media (max-width: 1000px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; padding: 52px 24px 48px; }
  .phone-wrap { order: -1; }
  .phone { width: 232px; }
  .nav-links { display: none; }
  .nav-toggle {
    display: grid; place-items: center; width: 40px; height: 40px;
    border: 1px solid var(--line); border-radius: 11px; font-size: 19px; color: var(--text-2);
  }
  .nav-inner { gap: 14px; justify-content: space-between; }
  .nav-inner > .btn { display: none; }
  .g4, .g3 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }
  .legal-layout { grid-template-columns: 1fr; }
  .toc { position: static; }
  .legal { padding: 32px 26px; }
  .contact-grid { grid-template-columns: 1fr; }
  .dl { grid-template-columns: 1fr; padding: 36px 28px; }
  .qr { justify-self: start; }
}
@media (max-width: 680px) {
  body { font-size: 14.5px; }
  .hero h1 { font-size: 32px; }
  .sec { padding: 52px 0; }
  .sec-head h2, .page-head h1 { font-size: 25px; }
  .g4, .g3, .g2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .appmeta { grid-template-columns: 1fr; gap: 20px; padding: 24px 22px; }
  .appmeta-icon { width: 84px; height: 84px; border-radius: 20px; font-size: 32px; }
  .spec-grid { grid-template-columns: 1fr; gap: 9px; }
  .kv-row { grid-template-columns: 1fr; gap: 3px; }
  .footer-top { grid-template-columns: 1fr; }
  .prose-block, .cta { padding: 24px 22px; }
  .wrap { padding: 0 18px; }
  .nav-inner { padding: 0 18px; }
}