/* ============================================================
   简历簿官网首页 · 设计系统
   品牌主色取自小程序 theme（#FF7A1A），辅色取自小程序码学士帽深蓝
   所有组件样式仅引用此处 token，禁止在页面内写裸色值
   ============================================================ */

:root {
  /* 品牌色 */
  --brand: #FF7A1A;
  --brand-active: #E56200;
  --brand-soft: #FFA366;
  --brand-tint: rgba(255, 122, 26, 0.10);
  --brand-tint-strong: rgba(255, 122, 26, 0.18);

  /* 深蓝（学士帽色）：标题与深色区块 */
  --navy: #17456B;
  --navy-deep: #0F2E4C;
  --navy-tint: rgba(23, 69, 107, 0.08);

  /* 中性色 */
  --text-1: #1A1A1A;
  --text-2: #5C6470;
  --text-3: #8A919C;
  --border: #E7E9EC;
  --bg: #FFFFFF;
  --bg-soft: #F5F6F7;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC",
    "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
  --fs-hero: clamp(2.25rem, 4.6vw, 3.5rem);
  --fs-h2: clamp(1.6rem, 2.8vw, 2.25rem);
  --fs-h3: 1.125rem;
  --fs-body: 1rem;
  --fs-sm: 0.875rem;
  --fs-xs: 0.8125rem;

  /* 间距尺度 */
  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 32px;
  --sp-5: 48px;
  --sp-6: 64px;
  --sp-7: 96px;

  /* 圆角与阴影 */
  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 22px;
  --shadow-card: 0 1px 2px rgba(15, 46, 76, 0.04), 0 8px 24px -12px rgba(15, 46, 76, 0.12);
  --shadow-card-hover: 0 2px 4px rgba(15, 46, 76, 0.06), 0 20px 40px -16px rgba(15, 46, 76, 0.20);
  --shadow-brand: 0 10px 24px -10px rgba(255, 122, 26, 0.55);

  /* 动效 */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.3s var(--ease);

  /* 布局 */
  --container: 1160px;
  --header-h: 68px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.7;
  color: var(--text-1);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--sp-3);
}

.section { padding: var(--sp-7) 0; }

.section-alt { background: var(--bg-soft); }

/* 区块标题组 */
.section-head { max-width: 640px; margin: 0 auto var(--sp-6); text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--brand-tint);
  color: var(--brand-active);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

.section-title {
  margin: var(--sp-2) 0 var(--sp-1);
  font-size: var(--fs-h2);
  line-height: 1.3;
  color: var(--navy-deep);
  font-weight: 700;
}

.section-desc { color: var(--text-2); font-size: var(--fs-body); }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-1);
  height: 48px;
  padding: 0 var(--sp-4);
  border-radius: 999px;
  font-size: var(--fs-body);
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-brand {
  background: linear-gradient(135deg, var(--brand), var(--brand-active));
  color: #FFFFFF;
  box-shadow: var(--shadow-brand);
}

.btn-brand:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -10px rgba(255, 122, 26, 0.65); }

.btn-ghost {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--navy);
}

.btn-ghost:hover { border-color: var(--brand); color: var(--brand-active); background: var(--brand-tint); }

.btn-sm { height: 40px; padding: 0 var(--sp-3); font-size: var(--fs-sm); }

/* 滚动显现动画 */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }
.reveal-d4 { transition-delay: 0.32s; }
.reveal-d5 { transition-delay: 0.40s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.site-header.is-scrolled { border-bottom-color: var(--border); box-shadow: 0 4px 20px -12px rgba(15, 46, 76, 0.15); }

.header-inner { display: flex; align-items: center; gap: var(--sp-4); height: var(--header-h); }

.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: var(--navy-deep); }

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand-active));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-brand);
  flex: none;
}

.logo-mark svg { width: 22px; height: 22px; }

.logo-sub { font-size: var(--fs-xs); font-weight: 500; color: var(--text-3); border-left: 1px solid var(--border); padding-left: 10px; }

.main-nav { display: flex; gap: var(--sp-4); margin-left: auto; }

.main-nav a {
  position: relative;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-2);
  padding: 6px 2px;
  transition: color var(--transition);
}

.main-nav a:hover { color: var(--brand-active); }

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  transition: right var(--transition);
}

.main-nav a:hover::after { right: 0; }

.header-cta { flex: none; }

.nav-toggle { display: none; margin-left: auto; width: 40px; height: 40px; border-radius: var(--radius-s); align-items: center; justify-content: center; }

.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--navy-deep);
  position: relative;
  transition: var(--transition);
}

.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + var(--sp-7)) 0 var(--sp-7);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -220px;
  right: -180px;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--brand-tint-strong), transparent 65%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -260px;
  left: -200px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--navy-tint), transparent 65%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: var(--sp-6);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--brand-tint-strong);
  background: var(--brand-tint);
  color: var(--brand-active);
  font-size: var(--fs-xs);
  font-weight: 600;
}

.hero-title {
  margin: var(--sp-3) 0 var(--sp-2);
  font-size: var(--fs-hero);
  line-height: 1.22;
  font-weight: 800;
  color: var(--navy-deep);
  letter-spacing: 0.01em;
}

.hero-title em {
  font-style: normal;
  color: var(--brand);
  position: relative;
}

.hero-title em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.08em;
  height: 0.28em;
  background: var(--brand-tint-strong);
  border-radius: 4px;
  z-index: -1;
}

.hero-desc { max-width: 520px; color: var(--text-2); font-size: 1.0625rem; margin-bottom: var(--sp-4); }

.hero-actions { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-bottom: var(--sp-5); }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--sp-2);
  border-top: 1px solid var(--border);
  padding-top: var(--sp-3);
}

.stat-num { font-size: 1.5rem; font-weight: 800; color: var(--navy-deep); line-height: 1.3; }

.stat-num b { color: var(--brand); font-weight: 800; }

.stat-label { font-size: var(--fs-xs); color: var(--text-3); }

/* Hero 视觉：手机模型 + 二维码卡 */
.hero-visual { position: relative; display: flex; justify-content: center; }

.phone {
  position: relative;
  width: 300px;
  height: 610px;
  border-radius: 44px;
  background: var(--navy-deep);
  padding: 12px;
  box-shadow: 0 40px 80px -32px rgba(15, 46, 76, 0.45);
  animation: float 7s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 34px;
  background: var(--bg-soft);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.phone-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 22px 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-1);
}

.phone-status i { display: inline-flex; gap: 3px; align-items: center; }

.phone-status i::before, .phone-status i::after {
  content: "";
  width: 14px;
  height: 8px;
  border: 1.5px solid var(--text-1);
  border-radius: 2px;
}

.phone-status i::after { width: 8px; border-radius: 50%; border: none; background: var(--text-1); }

.phone-appbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px 10px;
  background: var(--bg);
}

.phone-appbar strong { font-size: 15px; color: var(--navy-deep); }

.phone-appbar span {
  font-size: 10px;
  color: var(--brand-active);
  background: var(--brand-tint);
  border-radius: 999px;
  padding: 2px 10px;
  font-weight: 600;
}

.phone-body { flex: 1; padding: 12px; display: flex; flex-direction: column; gap: 10px; overflow: hidden; }

.phone-card {
  background: var(--bg);
  border-radius: 14px;
  padding: 12px;
  box-shadow: var(--shadow-card);
}

.phone-card h4 { font-size: 12px; color: var(--navy-deep); margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }

.phone-card h4::before { content: ""; width: 4px; height: 12px; border-radius: 2px; background: var(--brand); }

.resume-sheet { display: flex; gap: 10px; }

.resume-avatar { width: 34px; height: 34px; border-radius: 8px; background: linear-gradient(135deg, var(--brand-soft), var(--brand)); flex: none; }

.resume-lines { flex: 1; display: flex; flex-direction: column; gap: 6px; padding-top: 2px; }

.resume-lines i { height: 6px; border-radius: 3px; background: #E4E7EB; }
.resume-lines i:nth-child(1) { width: 62%; background: var(--navy-tint); height: 8px; }
.resume-lines i:nth-child(2) { width: 88%; }
.resume-lines i:nth-child(3) { width: 74%; }

.phone-tags { display: flex; gap: 6px; flex-wrap: wrap; }

.phone-tags span {
  font-size: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-2);
  font-weight: 500;
}

.phone-tags span.hot { background: var(--brand-tint); color: var(--brand-active); }

.phone-ai {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--navy), var(--navy-deep));
  color: #FFFFFF;
}

.phone-ai h4 { color: #FFFFFF; margin: 0; }
.phone-ai h4::before { background: var(--brand); }

.phone-ai p { font-size: 10px; color: rgba(255, 255, 255, 0.72); line-height: 1.5; }

.phone-tabbar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--bg);
  padding: 8px 6px 12px;
  border-top: 1px solid var(--border);
}

.phone-tabbar span { text-align: center; font-size: 10px; color: var(--text-3); position: relative; padding-top: 14px; }

.phone-tabbar span::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 10px;
  border-radius: 3px;
  background: #DDE1E6;
}

.phone-tabbar span.on { color: var(--brand); font-weight: 700; }
.phone-tabbar span.on::before { background: var(--brand); }

/* 二维码浮卡 */
.qr-float {
  position: absolute;
  right: -6px;
  bottom: 34px;
  width: 168px;
  background: var(--bg);
  border-radius: var(--radius-m);
  padding: 12px;
  box-shadow: var(--shadow-card-hover);
  text-align: center;
  animation: float 7s ease-in-out infinite;
  animation-delay: 0.8s;
}

.qr-float img { width: 120px; height: 120px; margin: 0 auto 6px; border-radius: var(--radius-s); }

.qr-float p { font-size: var(--fs-xs); font-weight: 600; color: var(--navy-deep); }

.qr-float small { display: block; font-size: 10px; color: var(--text-3); }

/* ---------- 功能特色 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-3);
}

.feature-card {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  padding: var(--sp-4);
  transition: var(--transition);
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--brand-soft));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); border-color: transparent; }

.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--brand-tint);
  color: var(--brand-active);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-3);
  transition: var(--transition);
}

.feature-card:hover .feature-icon { background: linear-gradient(135deg, var(--brand), var(--brand-active)); color: #FFFFFF; }

.feature-icon svg { width: 26px; height: 26px; }

.feature-card h3 { font-size: var(--fs-h3); color: var(--navy-deep); margin-bottom: var(--sp-1); font-weight: 700; }

.feature-card p { font-size: var(--fs-sm); color: var(--text-2); }

.feature-tag {
  display: inline-block;
  margin-top: var(--sp-2);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--navy);
  background: var(--navy-tint);
  border-radius: 999px;
  padding: 3px 12px;
}

/* ---------- 使用流程 ---------- */
.step-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--sp-3); counter-reset: step; }

.step-item { position: relative; padding: var(--sp-4) var(--sp-3); background: var(--bg); border-radius: var(--radius-l); border: 1px solid var(--border); transition: var(--transition); }

.step-item:hover { border-color: var(--brand-tint-strong); box-shadow: var(--shadow-card); }

.step-num {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--brand-tint-strong);
  font-variant-numeric: tabular-nums;
  margin-bottom: var(--sp-2);
  transition: var(--transition);
}

.step-item:hover .step-num { color: var(--brand); }

.step-item h3 { font-size: var(--fs-h3); color: var(--navy-deep); margin-bottom: 6px; font-weight: 700; }

.step-item p { font-size: var(--fs-sm); color: var(--text-2); }

.step-item::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -18px;
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--brand-soft);
  border-right: 2px solid var(--brand-soft);
  transform: rotate(45deg);
}

.step-item:last-child::after { display: none; }

/* ---------- 为什么选择 ---------- */
.why-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--sp-3); }

.why-card {
  border-radius: var(--radius-l);
  padding: var(--sp-4);
  background: linear-gradient(160deg, var(--bg), var(--bg-soft));
  border: 1px solid var(--border);
}

.why-card h3 { display: flex; align-items: center; gap: 10px; font-size: var(--fs-h3); color: var(--navy-deep); margin-bottom: var(--sp-1); }

.why-card h3 svg { width: 22px; height: 22px; color: var(--brand); flex: none; }

.why-card p { font-size: var(--fs-sm); color: var(--text-2); }

/* ---------- 二维码区块 ---------- */
.qr-section {
  background:
    radial-gradient(720px 360px at 85% 20%, rgba(255, 122, 26, 0.22), transparent 60%),
    radial-gradient(560px 320px at 10% 90%, rgba(255, 255, 255, 0.06), transparent 60%),
    linear-gradient(150deg, var(--navy), var(--navy-deep));
  color: #FFFFFF;
}

.qr-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--sp-6);
  align-items: center;
}

.qr-copy .eyebrow { background: rgba(255, 255, 255, 0.12); color: #FFC79A; }
.qr-copy .eyebrow::before { background: var(--brand-soft); }

.qr-copy h2 { font-size: var(--fs-h2); margin: var(--sp-2) 0 var(--sp-2); font-weight: 700; }

.qr-copy p { color: rgba(255, 255, 255, 0.78); max-width: 460px; margin-bottom: var(--sp-3); }

.qr-points { display: flex; flex-direction: column; gap: 10px; }

.qr-points li { display: flex; align-items: center; gap: 10px; font-size: var(--fs-sm); color: rgba(255, 255, 255, 0.88); }

.qr-points li::before {
  content: "";
  width: 18px;
  height: 18px;
  flex: none;
  border-radius: 50%;
  background: var(--brand);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  background-size: 11px;
  background-position: center;
  background-repeat: no-repeat;
}

.qr-panel {
  background: #FFFFFF;
  border-radius: var(--radius-l);
  padding: var(--sp-4);
  text-align: center;
  box-shadow: 0 30px 60px -24px rgba(0, 0, 0, 0.45);
}

.qr-panel img { width: 232px; height: 232px; margin: 0 auto var(--sp-2); border-radius: var(--radius-m); }

.qr-panel h3 { color: var(--navy-deep); font-size: var(--fs-h3); margin-bottom: 4px; }

.qr-panel p { font-size: var(--fs-xs); color: var(--text-3); }

.qr-panel .btn { margin-top: var(--sp-2); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--sp-2); }

.faq-item { border: 1px solid var(--border); border-radius: var(--radius-m); background: var(--bg); overflow: hidden; transition: var(--transition); }

.faq-item.is-open { border-color: var(--brand-tint-strong); box-shadow: var(--shadow-card); }

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  padding: var(--sp-3);
  text-align: left;
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--navy-deep);
}

.faq-q svg { width: 20px; height: 20px; color: var(--brand); flex: none; transition: transform var(--transition); }

.faq-item.is-open .faq-q svg { transform: rotate(45deg); }

.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease); }

.faq-a p { padding: 0 var(--sp-3) var(--sp-3); font-size: var(--fs-sm); color: var(--text-2); }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy-deep); color: rgba(255, 255, 255, 0.72); padding: var(--sp-6) 0 var(--sp-4); }

.footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr)); gap: var(--sp-5); padding-bottom: var(--sp-5); border-bottom: 1px solid rgba(255, 255, 255, 0.12); }

.footer-brand .logo { color: #FFFFFF; margin-bottom: var(--sp-2); }

.footer-brand p { font-size: var(--fs-sm); max-width: 320px; }

.footer-col h4 { color: #FFFFFF; font-size: var(--fs-sm); font-weight: 700; margin-bottom: var(--sp-2); }

.footer-col li { margin-bottom: 10px; }

.footer-col a { font-size: var(--fs-sm); transition: color var(--transition); }

.footer-col a:hover { color: var(--brand-soft); }

.footer-bottom { padding-top: var(--sp-3); display: flex; flex-wrap: wrap; gap: var(--sp-2); justify-content: space-between; font-size: var(--fs-xs); color: rgba(255, 255, 255, 0.5); }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 28px;
  bottom: 32px;
  z-index: 40;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: var(--transition);
}

.back-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }

.back-top:hover { color: var(--brand-active); border-color: var(--brand); }

.back-top svg { width: 20px; height: 20px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step-item::after { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: var(--sp-6); }
  .hero-visual { margin-top: var(--sp-2); }
  .qr-grid { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .qr-copy p { margin-inline: auto; }
  .qr-points { align-items: center; }
}

@media (max-width: 768px) {
  .section { padding: var(--sp-6) 0; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: var(--sp-1) var(--sp-3) var(--sp-2);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  .main-nav.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .main-nav a { padding: 12px 2px; font-size: var(--fs-body); border-bottom: 1px solid var(--bg-soft); }
  .main-nav a::after { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-cta { display: none; }
  .hero { padding-top: calc(var(--header-h) + var(--sp-5)); }
  .hero-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-3); }
  .why-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--sp-4); }
  .qr-float { right: 0; bottom: -18px; width: 148px; }
  .qr-float img { width: 104px; height: 104px; }
}

@media (max-width: 520px) {
  .feature-grid { grid-template-columns: 1fr; }
  .step-grid { grid-template-columns: 1fr; }
  .phone { width: 268px; height: 552px; }
  .qr-panel img { width: 200px; height: 200px; }
  .logo-sub { display: none; }
}