/* ============================================================
   耶斯去水印官网 全站样式（yq- 前缀命名空间，可与旧样式共存）
   品牌主色 #2292FF，渐变 #60B3FF → #2292FF
   ============================================================ */

@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/plus-jakarta-sans-600.ttf") format("truetype");
}

@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/plus-jakarta-sans-700.ttf") format("truetype");
}

@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("../fonts/plus-jakarta-sans-800.ttf") format("truetype");
}

:root {
  --yq-primary: #2292FF;
  --yq-primary-dark: #0f7ae5;
  --yq-primary-deep: #0c63bd;
  --yq-primary-soft: #e8f3ff;
  --yq-grad: linear-gradient(135deg, #60B3FF 0%, #2292FF 100%);
  --yq-bg: #f7faff;
  --yq-surface: #ffffff;
  --yq-soft: #eef6ff;
  --yq-ink: #0f172a;
  --yq-text: #334155;
  --yq-muted: #64748b;
  --yq-success: #059669;
  --yq-footer-bg: #0f1b2d;
  --yq-radius: 16px;
  --yq-radius-sm: 12px;
  --yq-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --yq-shadow: 0 8px 24px rgba(34, 146, 255, 0.1);
  --yq-shadow-lg: 0 18px 42px rgba(34, 146, 255, 0.16);
  --yq-container: 1200px;
  --yq-font: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--yq-font);
  color: var(--yq-text);
  background: var(--yq-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.yq-page a { text-decoration: none; }

/* 锚点定位为吸顶导航让位 */
#features, #steps, #news, #faq, #qr-banner { scroll-margin-top: 84px; }

/* ============ 顶部导航 ============ */
.yq-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow 0.25s ease;
}

.yq-header.is-scrolled {
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
}

.yq-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  max-width: var(--yq-container);
  margin: 0 auto;
  padding: 14px 24px;
}

.yq-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--yq-ink);
  font-weight: 800;
  font-size: 19px;
  flex-shrink: 0;
}

.yq-brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--yq-grad);
  color: #fff;
  font-size: 17px;
  font-weight: 900;
  box-shadow: 0 4px 12px rgba(34, 146, 255, 0.35);
}

.yq-brand-logo {
  height: 36px;
  width: 36px;
  display: block;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(34, 146, 255, 0.28);
}

.yq-brand.is-light { color: #fff; }

.yq-nav-links {
  display: flex;
  gap: 4px;
  font-size: 15px;
  font-weight: 600;
}

.yq-nav-links a {
  color: var(--yq-text);
  padding: 8px 14px;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}

.yq-nav-links a:hover { color: var(--yq-primary-dark); background: var(--yq-primary-soft); }

.yq-nav-links a.is-active { color: var(--yq-primary-dark); background: var(--yq-primary-soft); }

.yq-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: var(--yq-radius-sm);
  background: var(--yq-primary-soft);
  color: var(--yq-primary-dark);
  cursor: pointer;
}

.yq-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 11px 22px;
  border-radius: 999px;
  background: var(--yq-grad);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(34, 146, 255, 0.32);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.yq-nav-cta:hover { transform: translateY(-1px); box-shadow: 0 12px 24px rgba(34, 146, 255, 0.4); }

.yq-nav-cta svg { width: 18px; height: 18px; }

/* ============ 按钮 ============ */
.yq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border: 0;
  border-radius: var(--yq-radius-sm);
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.yq-btn svg { width: 18px; height: 18px; }

.yq-btn-primary {
  background: var(--yq-grad);
  color: #fff;
  box-shadow: 0 12px 26px rgba(34, 146, 255, 0.35);
}

.yq-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(34, 146, 255, 0.42); }

.yq-btn-outline {
  background: var(--yq-surface);
  color: var(--yq-primary-dark);
  box-shadow: inset 0 0 0 1.5px var(--yq-primary);
}

.yq-btn-outline:hover { background: var(--yq-primary-soft); transform: translateY(-2px); }

/* 扫码区「直接打开小程序」按钮（仅微信外手机浏览器显示，JS 控制） */
.yq-btn-openmp {
  position: relative;
  z-index: 1;
  margin-top: 22px;
  background: #fff;
  color: var(--yq-primary);
  box-shadow: 0 10px 24px rgba(9, 58, 110, 0.25);
}

.yq-btn-openmp:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(9, 58, 110, 0.32); }

/* ============ Hero ============ */
.yq-hero {
  position: relative;
  overflow: hidden;
  padding: 72px 24px 84px;
}

.yq-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(58% 52% at 86% 8%, rgba(96, 179, 255, 0.22), transparent 62%),
    radial-gradient(46% 44% at 6% 88%, rgba(34, 146, 255, 0.13), transparent 58%),
    linear-gradient(180deg, #ffffff 0%, var(--yq-bg) 100%);
}

.yq-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 146, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 146, 255, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(70% 62% at 50% 30%, #000 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(70% 62% at 50% 30%, #000 0%, transparent 100%);
}

.yq-hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 400px;
  gap: 56px;
  align-items: center;
  max-width: var(--yq-container);
  margin: 0 auto;
}

.yq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  background: var(--yq-primary-soft);
  color: var(--yq-primary-dark);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
}

.yq-kicker svg { width: 15px; height: 15px; }

.yq-hero h1 {
  font-size: 54px;
  line-height: 1.14;
  color: var(--yq-ink);
  letter-spacing: -0.5px;
  font-weight: 800;
}

.yq-accent {
  background: var(--yq-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.yq-lead {
  margin: 20px 0 28px;
  font-size: 17px;
  color: var(--yq-muted);
  max-width: 560px;
}

.yq-hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }

.yq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 44px;
  margin-top: 44px;
}

.yq-stat strong {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--yq-ink);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.yq-stat strong em { font-style: normal; font-size: 16px; color: var(--yq-primary); margin-left: 2px; }

.yq-stat > span { font-size: 13px; color: var(--yq-muted); }

/* Hero 主视觉：插画 + 悬浮玻璃扫码卡 */
.yq-hero-side { position: relative; }

.yq-hero-visual {
  position: relative;
  border-radius: 24px;
  overflow: visible;
}

.yq-hero-art {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 24px;
  box-shadow: var(--yq-shadow-lg);
}

.yq-hero-qr {
  position: absolute;
  left: -28px;
  bottom: -24px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px 14px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 18px 42px rgba(15, 42, 74, 0.18);
}

.yq-hero-qr .yq-qr-box.is-small {
  width: 108px;
  height: 108px;
  margin: 0;
  border-radius: 12px;
  flex-shrink: 0;
}

.yq-hero-qr-copy { text-align: left; }

.yq-hero-qr-copy strong {
  display: block;
  font-size: 15.5px;
  color: var(--yq-ink);
  font-weight: 800;
}

.yq-hero-qr-copy > span {
  display: block;
  margin-top: 2px;
  font-size: 12.5px;
  color: var(--yq-muted);
}

.yq-qr-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.yq-qr-tags span {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--yq-primary-soft);
  color: var(--yq-primary-dark);
  font-size: 11.5px;
  font-weight: 700;
}

/* 平台支持跑马灯 */
.yq-marquee {
  position: relative;
  max-width: var(--yq-container);
  margin: 64px auto 0;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%);
}

.yq-marquee-track {
  display: flex;
  gap: 14px;
  width: max-content;
  animation: yq-marquee 26s linear infinite;
}

.yq-marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  border-radius: 999px;
  background: var(--yq-surface);
  color: var(--yq-text);
  font-size: 13.5px;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: var(--yq-shadow-sm);
}

.yq-marquee-item svg { width: 15px; height: 15px; color: var(--yq-primary); }

/* 平台标识圆点：用各平台标志色，避免通用图标语义错配 */
.yq-plat-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex: none;
  background: radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.55), transparent 60%), var(--yq-plat, var(--yq-primary));
  box-shadow: 0 2px 5px rgba(15, 23, 42, 0.18);
}

@keyframes yq-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* 二维码框（占位 / 真图通用） */
.yq-qr-box {
  position: relative;
  width: 190px;
  height: 190px;
  margin: 6px auto 0;
  border-radius: 14px;
  background: linear-gradient(160deg, #f4f9ff 0%, #e9f3ff 100%);
  overflow: hidden;
  display: grid;
  place-items: center;
}

.yq-qr-box img { width: 100%; height: 100%; object-fit: cover; display: block; }

.yq-qr-placeholder {
  display: grid;
  place-items: center;
  gap: 8px;
  color: var(--yq-muted);
}

.yq-qr-placeholder svg { width: 52px; height: 52px; color: var(--yq-primary); opacity: 0.75; }

.yq-qr-placeholder em {
  font-style: normal;
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.5;
  text-align: center;
}

.yq-qr-scanline {
  position: absolute;
  left: 10%;
  right: 10%;
  top: 10%;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, rgba(34, 146, 255, 0.85), transparent);
  animation: yq-scan 2.6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes yq-scan {
  0%, 100% { transform: translateY(0); opacity: 0.2; }
  15% { opacity: 1; }
  50% { transform: translateY(84px); opacity: 1; }
  85% { opacity: 1; }
}

/* ============ 通用 Section ============ */
.yq-section {
  max-width: var(--yq-container);
  margin: 0 auto;
  padding: 84px 24px;
}

.yq-band { background: linear-gradient(180deg, #ffffff 0%, var(--yq-soft) 100%); }

.yq-section-head { text-align: center; margin-bottom: 52px; }

.yq-section-kicker {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--yq-primary-soft);
  color: var(--yq-primary-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.4px;
  margin-bottom: 16px;
}

.yq-section-head h2 {
  font-size: 36px;
  color: var(--yq-ink);
  font-weight: 800;
  letter-spacing: -0.3px;
}

.yq-section-head p { margin-top: 12px; color: var(--yq-muted); font-size: 16px; }

/* ============ 六大核心功能 ============ */
.yq-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.yq-feature-card {
  background: var(--yq-surface);
  border-radius: var(--yq-radius);
  overflow: hidden;
  box-shadow: var(--yq-shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.yq-feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--yq-shadow-lg);
}

/* 功能卡插画封面 */
.yq-feature-fig {
  height: 190px;
  overflow: hidden;
  background: linear-gradient(160deg, #f0f7ff 0%, #e6f1ff 100%);
}

.yq-feature-fig img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.yq-feature-card:hover .yq-feature-fig img { transform: scale(1.05); }

.yq-feature-body { padding: 20px 22px 22px; }

.yq-feature-body h3 { font-size: 17.5px; color: var(--yq-ink); margin-bottom: 6px; }

.yq-feature-body p { font-size: 14px; color: var(--yq-muted); }

/* ============ 为什么选择我们 ============ */
.yq-why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.yq-why-card {
  background: var(--yq-surface);
  border-radius: var(--yq-radius);
  padding: 28px 24px;
  box-shadow: var(--yq-shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.yq-why-card:hover { transform: translateY(-4px); box-shadow: var(--yq-shadow); }

.yq-why-ico {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  margin-bottom: 14px;
  background: transparent;
  box-shadow: none;
  transition: transform 0.25s ease;
}

.yq-why-ico img {
  display: block;
  width: 72px;
  height: 72px;
  object-fit: contain;
  filter: drop-shadow(0 8px 16px rgba(34, 146, 255, 0.18));
}

.yq-why-card:hover .yq-why-ico { transform: translateY(-3px); }

.yq-why-card h3 { font-size: 17px; color: var(--yq-ink); margin-bottom: 8px; }

.yq-why-card p { font-size: 13.5px; color: var(--yq-muted); }

/* ============ 三步教程 ============ */
.yq-steps-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 18px;
  align-items: stretch;
}

.yq-step-card {
  position: relative;
  background: var(--yq-surface);
  border-radius: var(--yq-radius);
  padding: 34px 26px 28px;
  text-align: center;
  box-shadow: var(--yq-shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.yq-step-card:hover { transform: translateY(-4px); box-shadow: var(--yq-shadow); }

.yq-step-num {
  position: absolute;
  top: -17px;
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--yq-grad);
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  box-shadow: 0 8px 16px rgba(34, 146, 255, 0.35), 0 0 0 4px var(--yq-bg);
}

/* 三步教程：Cursor 生图 3D 图标 */
.yq-step-pic {
  display: grid;
  place-items: center;
  width: 112px;
  height: 112px;
  margin: 8px auto 18px;
  background: transparent;
  box-shadow: none;
  transition: transform 0.3s ease;
}

.yq-step-pic img {
  display: block;
  width: 112px;
  height: 112px;
  object-fit: contain;
  filter: drop-shadow(0 12px 22px rgba(34, 146, 255, 0.2));
}

.yq-step-card:hover .yq-step-pic { transform: translateY(-4px); }

.yq-step-card h3 { font-size: 17.5px; color: var(--yq-ink); margin-bottom: 8px; }

.yq-step-card p { font-size: 14px; color: var(--yq-muted); }

.yq-step-link {
  display: grid;
  place-items: center;
  color: var(--yq-primary);
  opacity: 0.6;
}

.yq-step-link svg { width: 26px; height: 26px; }

/* ============ 资讯中心 ============ */
.yq-article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.yq-article-card {
  background: var(--yq-surface);
  border-radius: var(--yq-radius);
  overflow: hidden;
  box-shadow: var(--yq-shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.yq-article-card:hover { transform: translateY(-6px); box-shadow: var(--yq-shadow-lg); }

.yq-article-cover {
  display: block;
  height: 168px;
  overflow: hidden;
  background: linear-gradient(135deg, #e8f3ff 0%, #d5eaff 100%);
}

.yq-article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.yq-article-card:hover .yq-article-cover img { transform: scale(1.05); }

.yq-article-body { padding: 20px 22px 22px; }

.yq-article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  margin-bottom: 10px;
}

.yq-article-cat {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--yq-primary-soft);
  color: var(--yq-primary-dark);
  font-weight: 700;
  transition: background 0.2s ease;
}

.yq-article-cat:hover { background: #d8ebff; }

.yq-article-meta > span { color: var(--yq-muted); }

.yq-article-body h3 {
  font-size: 16.5px;
  line-height: 1.45;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.yq-article-body h3 a { color: var(--yq-ink); transition: color 0.2s ease; }

.yq-article-body h3 a:hover { color: var(--yq-primary-dark); }

.yq-article-body p {
  font-size: 13.5px;
  color: var(--yq-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.yq-article-more { text-align: center; margin-top: 40px; }

.yq-article-empty {
  display: grid;
  place-items: center;
  gap: 16px;
  padding: 48px 24px;
  background: var(--yq-surface);
  border-radius: var(--yq-radius);
  box-shadow: var(--yq-shadow-sm);
  text-align: center;
}

.yq-article-empty img { width: 300px; max-width: 80%; height: auto; border-radius: var(--yq-radius-sm); }

.yq-article-empty p { color: var(--yq-muted); font-size: 15px; }

/* ============ 大扫码引导区 ============ */
.yq-qr-section {
  max-width: var(--yq-container);
  margin: 0 auto;
  padding: 0 24px 84px;
}

.yq-qr-banner {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 44px;
  align-items: center;
  border-radius: 24px;
  padding: 56px 60px;
  background:
    radial-gradient(72% 96% at 92% 6%, rgba(255, 255, 255, 0.2), transparent 56%),
    radial-gradient(40% 60% at 8% 96%, rgba(12, 99, 189, 0.5), transparent 60%),
    var(--yq-grad);
  color: #fff;
  box-shadow: var(--yq-shadow-lg);
}

.yq-qr-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}

.yq-qr-banner-copy { position: relative; z-index: 1; }

.yq-qr-banner h2 { font-size: 34px; font-weight: 800; margin-bottom: 12px; }

.yq-qr-banner p { font-size: 16px; color: rgba(255, 255, 255, 0.92); max-width: 540px; }

.yq-qr-banner-hints {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin-top: 24px;
  font-size: 14px;
  font-weight: 600;
}

.yq-qr-banner-hints span { display: inline-flex; align-items: center; gap: 6px; }

.yq-qr-banner-hints svg {
  width: 16px;
  height: 16px;
  padding: 2px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.24);
}

.yq-qr-white {
  position: relative;
  z-index: 1;
  background: #fff;
  border-radius: 18px;
  padding: 18px 18px 14px;
  text-align: center;
  box-shadow: 0 18px 40px rgba(12, 63, 120, 0.35);
}

.yq-qr-white .yq-qr-box { width: 172px; height: 172px; }

.yq-qr-white strong { display: block; margin-top: 10px; color: var(--yq-ink); font-size: 14.5px; }

/* ============ FAQ ============ */
.yq-faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.yq-faq-item {
  background: var(--yq-surface);
  border-radius: var(--yq-radius-sm);
  box-shadow: var(--yq-shadow-sm);
  overflow: hidden;
  transition: box-shadow 0.25s ease;
}

.yq-faq-item:hover { box-shadow: var(--yq-shadow); }

.yq-faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 22px;
  border: 0;
  background: none;
  font-family: inherit;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--yq-ink);
  text-align: left;
  cursor: pointer;
}

.yq-faq-q svg {
  width: 18px;
  height: 18px;
  color: var(--yq-primary);
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.yq-faq-item.is-open .yq-faq-q svg { transform: rotate(180deg); }

.yq-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.yq-faq-item.is-open .yq-faq-a { max-height: 600px; }

.yq-faq-a p { padding: 0 22px 18px; font-size: 14px; color: var(--yq-muted); }

/* ============ 页脚 ============ */
.yq-footer {
  background: var(--yq-footer-bg);
  color: #94a3b8;
  padding: 56px 24px 28px;
}

.yq-footer-inner { max-width: var(--yq-container); margin: 0 auto; }

.yq-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
}

.yq-footer-brand p { margin-top: 14px; font-size: 13.5px; max-width: 300px; line-height: 1.7; }

.yq-footer-col h4 { color: #e2e8f0; font-size: 14.5px; margin-bottom: 16px; }

.yq-footer-col a {
  display: block;
  color: #94a3b8;
  font-size: 13.5px;
  margin-bottom: 10px;
  transition: color 0.2s ease;
}

.yq-footer-col a:hover { color: #dbeafe; }

.yq-friend-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid rgba(148, 163, 184, 0.18);
  font-size: 12.5px;
}

.yq-friend-links > span { color: #64748b; font-weight: 600; }

.yq-friend-links a { color: #94a3b8; transition: color 0.2s ease; }

.yq-friend-links a:hover { color: #dbeafe; }

.yq-footer-record {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(148, 163, 184, 0.18);
  font-size: 12.5px;
}

.yq-footer-record-left { display: flex; flex-wrap: wrap; gap: 8px 18px; }

.yq-footer-record-left a { color: #94a3b8; transition: color 0.2s ease; }

.yq-footer-record-left a:hover { color: #dbeafe; }

.yq-footer-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 0;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.14);
  color: #cbd5e1;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.yq-footer-top:hover { background: rgba(148, 163, 184, 0.26); color: #fff; }

.yq-footer-top svg { width: 14px; height: 14px; }

/* ============ 右侧常驻悬浮码 ============ */
.yq-float-qr { position: fixed; right: 26px; bottom: 110px; z-index: 90; }

.yq-float-card {
  position: relative;
  width: 132px;
  padding: 14px 12px 12px;
  border-radius: 14px;
  background: var(--yq-surface);
  text-align: center;
  box-shadow: var(--yq-shadow-lg);
}

.yq-float-card .yq-qr-box.is-small { width: 100px; height: 100px; border-radius: 10px; margin: 0 auto 8px; }

.yq-float-card .yq-qr-box.is-small .yq-qr-placeholder svg { width: 30px; height: 30px; }

.yq-float-card .yq-qr-box.is-small .yq-qr-placeholder em { font-size: 10.5px; }

.yq-float-card strong { display: block; font-size: 12.5px; color: var(--yq-ink); }

.yq-float-card em { font-style: normal; font-size: 11px; color: var(--yq-muted); }

.yq-float-close {
  position: absolute;
  top: -10px;
  right: -10px;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 0;
  border-radius: 50%;
  background: #cbd9ea;
  color: #41546e;
  cursor: pointer;
  transition: background 0.2s ease;
}

.yq-float-close:hover { background: #b3c6dd; }

.yq-float-close svg { width: 13px; height: 13px; }

.yq-float-mini {
  display: none;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  background: var(--yq-grad);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 12px 26px rgba(34, 146, 255, 0.4);
  transition: transform 0.2s ease;
}

.yq-float-mini:hover { transform: scale(1.06); }

.yq-float-mini svg { width: 24px; height: 24px; }

.yq-float-qr.is-collapsed .yq-float-card { display: none; }

.yq-float-qr.is-collapsed .yq-float-mini { display: grid; }

/* ============ 全站返回顶部 ============ */
.yq-backtop {
  position: fixed;
  right: 26px;
  bottom: 44px;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid rgba(34, 146, 255, 0.18);
  border-radius: 50%;
  background: var(--yq-surface);
  color: var(--yq-primary);
  cursor: pointer;
  box-shadow: var(--yq-shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.24s ease, transform 0.24s ease, visibility 0.24s ease, background 0.2s ease, color 0.2s ease;
}

.yq-backtop:not(.is-visible) { pointer-events: none; }

.yq-backtop.is-visible { opacity: 1; visibility: visible; transform: none; }

.yq-backtop:hover { background: var(--yq-grad); border-color: transparent; color: #fff; }

.yq-backtop:focus-visible { outline: 2px solid var(--yq-primary); outline-offset: 3px; }

.yq-backtop svg { width: 22px; height: 22px; }

/* ============ 滚动浮现动画（仅 JS 就绪后才隐藏，无 JS 时内容始终可见） ============ */
.yq-anim .yq-reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.yq-anim .yq-reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .yq-reveal { opacity: 1; transform: none; transition: none; }
  .yq-qr-scanline, .yq-marquee-track { animation: none; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
  .yq-hero-inner { grid-template-columns: minmax(0, 1fr) 380px; gap: 40px; }
  .yq-hero h1 { font-size: 44px; }
  .yq-feature-grid, .yq-article-grid { grid-template-columns: repeat(2, 1fr); }
  .yq-why-grid { grid-template-columns: repeat(2, 1fr); }
  .yq-hero-qr { left: -12px; }
}

@media (max-width: 860px) {
  .yq-nav { gap: 16px; }
  .yq-nav-toggle { display: inline-flex; margin-left: auto; }
  .yq-nav-cta { margin-left: 0; padding: 10px 16px; font-size: 14px; }
  .yq-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 4px;
    padding: 12px 16px 16px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 20px 32px rgba(15, 23, 42, 0.12);
  }
  .yq-nav-links.is-open { display: flex; }
  .yq-nav-links a { padding: 12px 16px; border-radius: var(--yq-radius-sm); }
  .yq-header { position: sticky; }
  .yq-nav { position: relative; }

  .yq-hero { padding: 48px 24px 60px; }
  .yq-hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .yq-hero h1 { font-size: 38px; }
  .yq-hero-side { max-width: 460px; margin: 0 auto; width: 100%; }
  .yq-hero-qr { left: 12px; bottom: -20px; }
  .yq-hero-visual { margin-bottom: 28px; }
  .yq-marquee { margin-top: 52px; }

  .yq-section { padding: 60px 24px; }
  .yq-section-head h2 { font-size: 30px; }
  .yq-steps-grid { grid-template-columns: 1fr; gap: 30px; }
  .yq-step-link { display: none; }
  .yq-qr-banner { grid-template-columns: 1fr; padding: 40px 32px; text-align: center; }
  .yq-qr-banner-hints { justify-content: center; }
  .yq-qr-white { margin: 0 auto; }
  .yq-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  /* ---- 头部：单行紧凑，CTA 不换行 ---- */
  .yq-nav { gap: 10px; padding: 12px 16px; }
  .yq-brand-name { font-size: 17px; }
  .yq-brand-mark { width: 34px; height: 34px; font-size: 16px; }
  .yq-nav-toggle { width: 40px; height: 40px; }
  .yq-nav-cta { padding: 9px 13px; font-size: 13px; gap: 5px; white-space: nowrap; }
  .yq-nav-cta svg { width: 15px; height: 15px; }

  /* ---- Hero：紧凑排版，按钮一行两颗，统计对齐 ---- */
  .yq-hero { padding: 36px 20px 48px; }
  .yq-hero-inner { gap: 32px; }
  .yq-hero h1 { font-size: 30px; }
  .yq-lead { font-size: 15px; }
  .yq-hero-actions { gap: 12px; }
  .yq-hero-actions .yq-btn { flex: 1 1 calc(50% - 6px); padding: 13px 8px; font-size: 14.5px; }
  .yq-hero-actions .yq-btn svg { width: 16px; height: 16px; }
  .yq-hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px 12px;
    margin-top: 30px;
  }
  .yq-stat strong { font-size: 24px; }
  .yq-stat strong em { font-size: 14px; }
  .yq-stat > span { font-size: 12px; }

  /* ---- Hero 视觉：玻璃扫码卡改为图下居中，不再压图 ---- */
  .yq-hero-side { max-width: 400px; }
  .yq-hero-visual { margin-bottom: 0; }
  .yq-hero-qr {
    position: static;
    margin: 14px auto 0;
    width: fit-content;
    max-width: 100%;
  }
  .yq-hero-qr .yq-qr-box.is-small { flex-shrink: 0; }

  /* ---- 跑马灯：药丸缩小 ---- */
  .yq-marquee { margin-top: 36px; }
  .yq-marquee-track { gap: 10px; }
  .yq-marquee-item { padding: 7px 14px; font-size: 12px; gap: 6px; }
  .yq-marquee-item svg { width: 13px; height: 13px; }
  .yq-plat-dot { width: 8px; height: 8px; }

  /* ---- 通用 Section：更紧凑 ---- */
  .yq-section { padding: 52px 20px; }
  .yq-section-head { margin-bottom: 32px; }
  .yq-section-head h2 { font-size: 25px; }
  .yq-section-head p { font-size: 14.5px; margin-top: 8px; }
  .yq-section-kicker { font-size: 12px; padding: 5px 14px; margin-bottom: 12px; }

  /* ---- 功能卡：压缩插画高度，减少滚动 ---- */
  .yq-feature-grid, .yq-article-grid, .yq-why-grid { grid-template-columns: 1fr; }
  .yq-feature-grid { gap: 16px; }
  .yq-feature-fig { height: 150px; }
  .yq-feature-body { padding: 16px 18px 18px; }
  .yq-feature-body h3 { font-size: 16.5px; }
  .yq-why-grid { gap: 14px; }
  .yq-steps-grid { gap: 22px; }
  .yq-step-pic { width: 96px; height: 96px; margin-bottom: 14px; }
  .yq-step-pic img { width: 96px; height: 96px; }
  .yq-why-ico { width: 64px; height: 64px; }
  .yq-why-ico img { width: 64px; height: 64px; }

  /* ---- 扫码大区 ---- */
  .yq-qr-banner { padding: 34px 20px; }
  .yq-qr-banner h2 { font-size: 24px; }
  .yq-qr-banner p { font-size: 14.5px; }
  .yq-btn-openmp { width: 100%; margin-top: 18px; padding: 13px 12px; font-size: 15px; white-space: nowrap; }

  /* ---- 悬浮码：整体缩小（进场默认折叠由 JS 控制） ---- */
  .yq-float-qr { right: 14px; bottom: 84px; }
  .yq-float-card { width: 112px; padding: 12px 10px 10px; }
  .yq-float-card .yq-qr-box.is-small { width: 84px; height: 84px; }
  .yq-float-mini { width: 46px; height: 46px; }
  .yq-float-mini svg { width: 21px; height: 21px; }

  .yq-backtop { right: 14px; bottom: 22px; width: 42px; height: 42px; }
  .yq-backtop svg { width: 19px; height: 19px; }

  .yq-footer-grid { grid-template-columns: 1fr; gap: 28px; }
}