/* wgetcloud.net.cn — light, trial-first layout */
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css');

:root {
  /* measured on the brand help centre (1280px): accent #1972f5, text #1c293b, tint #f3f6fb, white page, card radius 5px / field radius 8px,
     transitions .1-.15s linear. This light skin uses the measured light palette; larger radii and the mint "free" accent are our own choices. */
  --primary: #1972f5;
  --primary-dark: #0f56c9;
  --gold: #1AAE5B;
  --dark: #1c293b;
  --header-bg: #ffffff;
  --bg: #ffffff;
  --surface: #f3f6fb;
  --surface-2: #e4ecf9;
  --text: #1c293b;
  --text-muted: #55657d;
  --green: #1AAE5B;
  --red: #E03C31;
  --border: #dce4f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --shadow-card: 0 2px 4px rgba(0,0,0,.04), 0 10px 28px rgba(25,114,245,.10);
  --shadow-lg: 0 18px 48px rgba(28,41,59,.14);
  --transition: 0.15s linear;
  --ease: linear;
  --dur-fast: 150ms;
  --dur-md: 220ms;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 88px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; overflow-x: clip; max-width: 100%; } /* clip, NOT hidden: hidden breaks the sticky header (M9) */
body { font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', Inter, Arial, sans-serif; font-size: 16px; line-height: 1.6; color: var(--text); background: var(--bg); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4 { margin-top: 0; line-height: 1.25; }

/* ─── HEADER ─── */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--header-bg);
  border-bottom: 2px solid var(--gold);
}
.nav {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center;
  padding: 0 var(--space-sm);
  height: 64px; gap: var(--space-sm);
}
.brand { display: flex; align-items: center; flex-shrink: 0; }
.logo { height: 36px; width: auto; max-width: 160px; object-fit: contain; }

.nav-links {
  display: flex; align-items: center; gap: 4px;
  flex: 1; justify-content: center;
}
.nav-links > li > a {
  color: rgba(255,255,255,.85); font-size: 14px; font-weight: 500;
  padding: 8px 12px; border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-links > li > a:hover { color: #fff; background: rgba(255,255,255,.1); text-decoration: none; }

.nav-right {
  display: flex; align-items: center; gap: var(--space-sm);
  flex-shrink: 0; margin-left: auto;
}

/* mobile-only language row inside the menu; hidden on desktop */
.mobile-lang { display: none; }

/* ─── DROPDOWN / LANGUAGE SWITCHER ─── */
.dropdown { position: relative; }
.dropdown-panel {
  position: absolute; top: 100%; right: 0;
  margin-top: 0; padding-top: 8px;
  display: none; min-width: 160px; z-index: 1000;
}
.dropdown-panel-inner {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-md); overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.dropdown:hover .dropdown-panel,
.dropdown:focus-within .dropdown-panel { display: block; }
.dropdown-panel a {
  display: block; padding: 10px 16px;
  color: var(--text); font-size: 14px;
  transition: background var(--transition);
  white-space: nowrap;
}
.dropdown-panel a:hover { background: var(--surface); text-decoration: none; }

.lang-btn {
  background: none; border: 1px solid rgba(255,255,255,.3);
  color: rgba(255,255,255,.85); padding: 6px 12px;
  border-radius: var(--radius-sm); cursor: pointer;
  font-size: 13px; display: flex; align-items: center; gap: 6px;
  transition: border-color var(--transition);
}
.lang-btn:hover { border-color: rgba(255,255,255,.7); }
.lang-btn i { font-size: 11px; }

/* ─── CTA BUTTON ─── */
.btn-cta {
  background: var(--primary); color: #fff;
  padding: 10px 20px; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 600;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap; display: inline-block;
}
.btn-cta:hover { background: var(--primary-dark); text-decoration: none; transform: translateY(-1px); }

.btn-cta-lg {
  background: var(--primary); color: #fff;
  padding: 16px 36px; border-radius: var(--radius-md);
  font-size: 18px; font-weight: 700;
  display: inline-block;
  transition: background var(--transition), transform var(--transition);
}
.btn-cta-lg:hover { background: var(--primary-dark); text-decoration: none; transform: translateY(-2px); }

.btn-outline {
  border: 2px solid var(--primary); color: var(--primary);
  padding: 10px 20px; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 600; display: inline-block;
  transition: all var(--transition);
}
.btn-outline:hover { background: var(--primary); color: #fff; text-decoration: none; }

/* ─── HAMBURGER ─── */
.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  color: #fff; font-size: 22px; padding: 6px;
  order: 99;
}

/* ─── HERO ─── */
.hero {
  background: linear-gradient(135deg, #12122a 0%, #1e2a5e 60%, #0d3b82 100%);
  color: #fff; text-align: center;
  padding: var(--space-xl) var(--space-sm);
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url('/assets/images/hero-bg.jpg') center/cover no-repeat;
  opacity: 0.12;
}
.hero-inner { position: relative; max-width: 800px; margin: 0 auto; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,199,44,.15); border: 1px solid rgba(255,199,44,.4);
  color: var(--gold); padding: 6px 16px; border-radius: 100px;
  font-size: 13px; font-weight: 600; margin-bottom: var(--space-md);
}
.hero h1 { font-size: clamp(28px, 5vw, 52px); font-weight: 800; margin-bottom: var(--space-sm); color: #fff; }
.hero p { font-size: clamp(16px, 2.5vw, 20px); color: rgba(255,255,255,.82); margin-bottom: var(--space-lg); max-width: 640px; margin-left: auto; margin-right: auto; }
.hero-cta-group { display: flex; gap: var(--space-sm); justify-content: center; flex-wrap: wrap; }
.hero-price { margin-top: var(--space-md); font-size: 14px; color: rgba(255,255,255,.6); }

/* ─── TRUST BAR ─── */
.trust-bar {
  background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: var(--space-md) var(--space-sm);
}
.trust-bar-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: center;
  gap: var(--space-lg); flex-wrap: wrap;
}
.trust-item { text-align: center; }
.trust-num {
  font-size: 28px; font-weight: 800; color: var(--primary);
  display: block; line-height: 1;
}
.trust-label {
  font-size: 12px; color: var(--text-muted); text-transform: uppercase;
  letter-spacing: .5px; margin-top: 6px; display: block;
}
.trust-divider { width: 1px; height: 40px; background: var(--border); }

/* ─── SECTIONS ─── */
.section { padding: var(--space-xl) var(--space-sm); }
.section-alt { background: var(--surface); }
.container { max-width: 1100px; margin: 0 auto; }
.section-label {
  font-size: 13px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1px; color: var(--primary); margin-bottom: var(--space-xs);
}
.section-title { font-size: clamp(24px, 4vw, 40px); font-weight: 800; margin-bottom: var(--space-sm); }
.section-sub { font-size: 17px; color: var(--text-muted); max-width: 600px; margin-bottom: var(--space-lg); }
.text-center { text-align: center; }
.text-center .section-sub { margin-left: auto; margin-right: auto; }

/* ─── FEATURE GRID ─── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}
.feature-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: var(--space-md);
  transition: box-shadow var(--transition), transform var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow-card); transform: translateY(-2px); }
.feature-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  background: var(--surface-2); display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: var(--space-sm); color: var(--primary);
}
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-muted); margin: 0; line-height: 1.6; }

/* ─── SPLIT ROW ─── */
.split-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-lg); align-items: center;
}
.split-row.reverse { direction: rtl; }
.split-row.reverse > * { direction: ltr; }
.split-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.split-image img { width: 100%; height: 320px; object-fit: cover; }
.split-content .section-title { font-size: clamp(22px, 3vw, 34px); }
.check-list { margin: var(--space-sm) 0 var(--space-md); }
.check-list li { padding: 8px 0; display: flex; gap: 10px; align-items: flex-start; font-size: 15px; }
.check-list li::before { content: '\2713'; color: var(--green); font-weight: 700; font-size: 16px; flex-shrink: 0; margin-top: 1px; }

/* ─── PRICING ─── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
}
.pricing-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: var(--space-md);
  position: relative; transition: box-shadow var(--transition);
}
.pricing-card.popular {
  border-color: var(--primary); border-width: 2px;
  box-shadow: 0 0 0 4px rgba(0,111,207,.08);
}
.pricing-card:hover { box-shadow: var(--shadow-card); }
.popular-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff; padding: 4px 16px;
  border-radius: 100px; font-size: 12px; font-weight: 700;
  white-space: nowrap;
}
.pricing-name { font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); margin-bottom: var(--space-xs); }
.pricing-price { font-size: 42px; font-weight: 800; color: var(--text); line-height: 1; }
.pricing-price sup { font-size: 22px; vertical-align: top; margin-top: 8px; display: inline-block; }
.pricing-period { font-size: 14px; color: var(--text-muted); margin-bottom: var(--space-sm); margin-top: 6px; }
.pricing-divider { height: 1px; background: var(--border); margin: var(--space-sm) 0; }
.pricing-features li { padding: 6px 0; display: flex; gap: 8px; align-items: flex-start; font-size: 14px; }
.pricing-features li::before { content: '\2713'; color: var(--green); font-weight: 700; flex-shrink: 0; }
.pricing-features li.no::before { content: '\2715'; color: var(--border); }
.pricing-cta { width: 100%; padding: 13px; border-radius: var(--radius-md); font-size: 15px; font-weight: 700; cursor: pointer; margin-top: var(--space-sm); display: block; text-align: center; transition: all var(--transition); background: var(--primary); color: #fff; border: none; }
.pricing-cta:hover { background: var(--primary-dark); text-decoration: none; }
.pricing-card.popular .pricing-cta { background: var(--primary); }

/* ─── IMAGE STRIP ─── */
.image-strip {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-sm);
}
.image-strip-item { border-radius: var(--radius-md); overflow: hidden; aspect-ratio: 4/3; }
.image-strip-item img { width: 100%; height: 100%; object-fit: cover; }

/* ─── AWARDS ─── */
.awards-row {
  display: flex; align-items: center; justify-content: center;
  gap: var(--space-lg); flex-wrap: wrap;
}
.award-item { text-align: center; }
.award-icon { font-size: 40px; color: var(--gold); margin-bottom: 8px; }
.award-title { font-size: 14px; font-weight: 700; }
.award-sub { font-size: 12px; color: var(--text-muted); }

/* ─── FAQ ─── */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%; background: none; border: none; text-align: left;
  padding: var(--space-sm) 0; font-size: 16px; font-weight: 600;
  cursor: pointer; display: flex; justify-content: space-between; align-items: center;
  color: var(--text);
}
.faq-q i { color: var(--primary); flex-shrink: 0; transition: transform var(--transition); }
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 0 var(--space-sm); font-size: 15px; color: var(--text-muted); line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

/* ─── FOOTER ─── */
.site-footer {
  background: var(--dark); color: rgba(255,255,255,.7);
  padding: var(--space-xl) var(--space-sm) var(--space-md);
}
.footer-grid {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-lg); margin-bottom: var(--space-xl);
}
.footer-brand .logo-footer { height: 36px; width: auto; filter: brightness(0) invert(1); margin-bottom: var(--space-sm); }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 280px; }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: var(--space-sm); text-transform: uppercase; letter-spacing: .5px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: rgba(255,255,255,.7); font-size: 14px; transition: color var(--transition); }
.footer-col ul li a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
  max-width: 1100px; margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,.1); padding-top: var(--space-sm);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { font-size: 13px; margin: 0; }
.social-links { display: flex; gap: 12px; }
.social-links a { color: rgba(255,255,255,.5); font-size: 18px; transition: color var(--transition); }
.social-links a:hover { color: #fff; text-decoration: none; }

/* ─── PLATFORM ICONS ─── */
.platform-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-md);
}
.platform-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-sm); text-align: center;
  transition: box-shadow var(--transition), transform var(--transition);
}
.platform-card:hover { box-shadow: var(--shadow-card); transform: translateY(-2px); }
.platform-card i { font-size: 36px; color: var(--primary); margin-bottom: var(--space-sm); }
.platform-card span { font-size: 14px; font-weight: 600; display: block; }

/* ─── GUARANTEE BANNER ─── */
.guarantee-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff; text-align: center;
  padding: var(--space-lg) var(--space-sm); border-radius: var(--radius-xl);
  margin: var(--space-lg) 0;
}
.guarantee-banner h2 { font-size: clamp(22px, 4vw, 36px); margin-bottom: var(--space-sm); color: #fff; }
.guarantee-banner p { font-size: 16px; color: rgba(255,255,255,.85); margin-bottom: var(--space-md); max-width: 560px; margin-left: auto; margin-right: auto; }

/* ─── PAGE HERO (inner pages) ─── */
.page-hero {
  background: linear-gradient(135deg, #12122a 0%, #1e2a5e 100%);
  color: #fff; text-align: center;
  padding: 72px var(--space-sm) var(--space-xl);
}
.page-hero h1 { font-size: clamp(26px, 4vw, 44px); font-weight: 800; margin-bottom: var(--space-sm); color: #fff; }
.page-hero p { font-size: 18px; color: rgba(255,255,255,.8); max-width: 600px; margin: 0 auto; }

/* ─── CONTACT ─── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
.contact-form { display: flex; flex-direction: column; gap: var(--space-sm); }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 14px; font-weight: 600; }
.form-group input, .form-group textarea, .form-group select {
  padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius-md);
  font-size: 15px; font-family: inherit; background: #fff;
  transition: border-color var(--transition);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--primary);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-submit {
  background: var(--primary); color: #fff; border: none; cursor: pointer;
  padding: 14px 32px; border-radius: var(--radius-md); font-size: 16px; font-weight: 700;
  transition: background var(--transition);
}
.form-submit:hover { background: var(--primary-dark); }

/* ─── PROSE (privacy/terms) ─── */
.prose { max-width: 800px; margin: 0 auto; font-size: 15px; line-height: 1.8; }
.prose h2 { font-size: 22px; margin-top: 40px; margin-bottom: 12px; }
.prose h3 { font-size: 17px; margin-top: 28px; }
.prose p { margin-bottom: 16px; color: var(--text-muted); }
.prose ul { margin: 12px 0 16px 24px; list-style: disc; }
.prose ul li { color: var(--text-muted); margin-bottom: 6px; }

/* ─── MOBILE ─── */
@media (max-width: 768px) {
  .nav { padding: 0 8px; }
  .nav-links {
    display: none;
    position: absolute; top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    align-items: center;
    height: auto; max-height: none;
    overflow: visible;
    background: var(--header-bg);
    box-shadow: 0 8px 16px rgba(0,0,0,.24);
    padding: 12px 0;
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-links > li { width: 100%; text-align: center; }
  .nav-links > li > a { display: block; width: 100%; padding: 14px 0; font-size: 17px; }

  .nav-right .lang-switcher { display: none; }
  .nav-right .btn-cta { display: none; }
  .nav-toggle { display: block; }

  /* Lang switcher INSIDE mobile menu */
  .mobile-lang {
    display: flex; justify-content: center; gap: 16px;
    padding: 14px 0; border-top: 1px solid rgba(255,255,255,.12);
    width: 100%;
  }
  .nav-links li.mobile-lang a {
    display: inline-block;
    width: auto;
    padding: 4px 10px;
    font-size: 15px;
    line-height: 1.4;
    white-space: nowrap;
    color: rgba(255,255,255,.75);
  }
  .nav-links li.mobile-lang a.active { color: var(--gold); font-weight: 700; }

  .split-row { grid-template-columns: 1fr; }
  .split-row.reverse { direction: ltr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .trust-divider { display: none; }
  .pricing-grid { grid-template-columns: 1fr; }
  .image-strip { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }

  .btn-cta-lg, .btn-cta, .hero-cta-group a {
    display: block;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    width: max-content;
    max-width: 90%;
  }
  .hero-cta-group { flex-direction: column; align-items: center; }

  .platform-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .awards-row { flex-direction: column; gap: var(--space-md); }
}

/* ─── UTILITY ─── */
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--space-lg); }
.tag {
  display: inline-block; background: var(--surface-2); color: var(--primary);
  font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 100px;
  text-transform: uppercase; letter-spacing: .5px;
}

/* ─── CN mode: visible update date under the H1 (cn.bing freshness signal, §18) ─── */
time.updated { display: inline-block; margin: 0 0 var(--space-sm); font-size: 14px; opacity: .75; }
.hero time.updated { color: rgba(255,255,255,.8); }

/* ═══ COMMON-MISTAKE RULES (website-quality-standards.md §26, checked by qa_mistakes.py) ═══ */
/* M9 sticky header everywhere */
.site-header { position: sticky; top: 0; z-index: 1000; }
/* M3/M4/M8 nav dropdown (device/product pages grouped): hover-intent on desktop, tap-toggle on mobile */
.dropdown.open > .dropdown-panel { display: block; }
.nav-links .dropdown-panel { left: 0; right: auto; }
.dropdown-toggle {
  background: none; border: 0; cursor: pointer; font: inherit;
  color: rgba(255,255,255,.85); font-size: 14px; font-weight: 500; padding: 8px 12px;
}
.dropdown-toggle::after { content: " ▾"; font-size: .8em; }
/* footer column titles are not headings (keeps H1→H2→H3 order intact, M17) */
.footer-heading { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: var(--space-sm); text-transform: uppercase; letter-spacing: .5px; }
/* M14 device/product cards on the download hub */
.device-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: var(--space-md); }
.device-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: var(--space-md); display: flex; flex-direction: column; gap: 10px; text-align: left;
}
.device-card .device-icon { font-size: 36px; width: 40px; height: 40px; line-height: 40px; color: var(--primary); } /* M22 one size */
.device-card h3 { margin: 0; font-size: 20px; }
.device-card h3 a { color: inherit; }
.device-card ul { margin: 0; padding-left: 18px; list-style: disc; }
.device-card li { font-size: 14px; color: var(--text-muted); margin: 2px 0; }
.device-card .btn-cta { margin-top: auto; align-self: flex-start; }
/* M13 payment methods, M24 comparison table, M19 bullet lists */
.payment-methods { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: var(--space-md); }
.payment-methods li { list-style: none; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px 14px; font-weight: 600; background: #fff; }
.compare-table { width: 100%; border-collapse: collapse; }
.compare-table th, .compare-table td { border-bottom: 1px solid var(--border); padding: 10px 12px; text-align: left; }
.compare-table .highlight { background: var(--surface); font-weight: 700; }
.bullets { padding-left: 20px; list-style: disc; }
.bullets li { margin: 6px 0; }
.section-sub { max-width: 720px; margin: 0 auto var(--space-md); text-align: center; color: var(--text-muted); }

@media (max-width: 768px) {
  .nav { padding: 0 16px; }                                  /* M7 not flush to the edges */
  .nav-links .dropdown { width: 100%; text-align: center; }
  .nav-links .dropdown-toggle { width: 100%; padding: 14px 0; font-size: 17px; }
  .nav-links .dropdown-panel { position: static; padding-top: 0; min-width: 0; }
  .nav-links .dropdown:hover > .dropdown-panel,
  .nav-links .dropdown:focus-within > .dropdown-panel { display: none; }
  .nav-links .dropdown.open > .dropdown-panel { display: block; }     /* M4 open / M8 close on tap */
  .nav-links .dropdown-panel-inner { background: rgba(255,255,255,.06); border: 0; box-shadow: none; }
  .nav-links .dropdown-panel a { color: rgba(255,255,255,.85); text-align: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }            /* M21 two footer columns */
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }            /* M21 stays two columns on phones */
}

/* ═══════ wgetcloud.net.cn: light, rounded, trial-first skin (overrides) ═══════ */
body { font-size: 17px; }
.site-header { background: rgba(255,255,255,.96); border-bottom: 0; box-shadow: 0 1px 0 var(--border), 0 8px 24px rgba(28,41,59,.04); backdrop-filter: saturate(1.4) blur(8px); }
.nav { max-width: 1180px; height: 72px; }
.nav-links { justify-content: center; }
.nav-links > li > a, .dropdown-toggle { color: var(--text); font-size: 15px; font-weight: 600; border-radius: 999px; padding: 8px 16px; }
.nav-links > li > a:hover { background: var(--surface-2); color: var(--primary); }
.nav-toggle { color: var(--text); }
.btn-cta { border-radius: 999px; padding: 11px 24px; box-shadow: 0 6px 16px rgba(25,114,245,.28); }
.btn-cta:hover { box-shadow: 0 8px 20px rgba(25,114,245,.36); }
.btn-cta.btn-lg { padding: 17px 38px; font-size: 18px; }
.btn-text { display: inline-block; padding: 16px 12px; font-weight: 700; color: var(--primary); }
.btn-text::after { content: ' →'; }

/* hero: centered, soft gradient, big rounded photo */
.hero { background: linear-gradient(180deg, #e4ecf9 0%, #f3f6fb 55%, #ffffff 100%); color: var(--text); padding: 64px var(--space-sm) 0; text-align: center; }
.hero::before { display: none; }
.hero-inner { max-width: 880px; }
.hero h1 { color: var(--text); font-size: clamp(30px, 5.2vw, 54px); line-height: 1.2; letter-spacing: -.5px; }
.hero p { color: var(--text-muted); max-width: 640px; }
.hero time.updated { color: var(--text-muted); }
.hero-badge { background: #fff; border: 1px solid var(--border); color: var(--primary); box-shadow: 0 4px 12px rgba(25,114,245,.10); }
.hero-badge::before { content: '●'; color: var(--green); font-size: 10px; }
.hero-pills { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 26px 0 0; }
.hero-pills li { background: #fff; border: 1px solid var(--border); border-radius: 999px; padding: 7px 16px; font-size: 14px; font-weight: 600; color: var(--text); }
.hero-pills li i { color: var(--green); margin-right: 6px; }
.hero-photo { max-width: 1040px; margin: 44px auto 0; border-radius: var(--radius-xl) var(--radius-xl) 0 0; overflow: hidden; box-shadow: var(--shadow-lg); position: relative; }
.hero-photo img { width: 100%; height: 360px; object-fit: cover; }
.hero-photo figcaption { position: absolute; left: 20px; bottom: 20px; background: rgba(255,255,255,.94); border-radius: var(--radius-md); padding: 12px 18px; font-size: 14px; font-weight: 600; box-shadow: var(--shadow-card); }
.hero-photo figcaption b { color: var(--green); }

.page-hero { background: linear-gradient(180deg, #e4ecf9, #f3f6fb); color: var(--text); padding: 60px var(--space-sm) 52px; }
.page-hero h1 { color: var(--text); }
.page-hero p { color: var(--text-muted); }
.page-hero time.updated { color: var(--text-muted); }

.section { padding: var(--space-xl) var(--space-sm); }
.section-title { text-align: center; letter-spacing: -.3px; }
.section-sub { margin-left: auto; margin-right: auto; }
.section-alt { background: var(--surface); }

/* big step cards */
.steps3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: s; }
.step3 { counter-increment: s; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 30px 26px 26px; position: relative; box-shadow: var(--shadow-card); transition: transform var(--transition), box-shadow var(--transition); }
.step3:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.step3::before { content: counter(s); display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 800; font-size: 20px; margin-bottom: 16px; }
.step3 h3 { font-size: 20px; margin-bottom: 8px; }
.step3 p { margin: 0; color: var(--text-muted); font-size: 15px; }

/* free-trial banner */
.trial { background: linear-gradient(135deg, #1972f5, #0f56c9); color: #fff; border-radius: var(--radius-xl); padding: 44px 40px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items: center; box-shadow: 0 24px 56px rgba(25,114,245,.30); }
.trial h2 { color: #fff; font-size: clamp(24px, 3.4vw, 34px); margin-bottom: 10px; }
.trial p { color: rgba(255,255,255,.88); margin: 0 0 18px; }
.trial ul { display: grid; gap: 10px; }
.trial li { background: rgba(255,255,255,.13); border-radius: var(--radius-md); padding: 12px 16px; font-weight: 600; font-size: 15px; }
.trial li::before { content: '✓ '; color: #8ff0b8; }
.trial .btn-cta { background: #fff; color: var(--primary); box-shadow: none; }
.trial .btn-cta:hover { background: var(--surface-2); }

/* alternating split rows with photos */
.split-row { gap: 56px; grid-template-columns: 1fr 1fr; margin-bottom: 64px; }
.split-row:last-child { margin-bottom: 0; }
.split-image { border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }
.split-image img { height: 380px; }
.split-content h3 { font-size: clamp(22px, 3vw, 30px); margin-bottom: 12px; }
.split-content p { color: var(--text-muted); }

/* persona cards (feature grid restyled) */
.feature-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.feature-card { border-radius: var(--radius-lg); border: 1px solid var(--border); text-align: center; padding: 30px 24px; }
.feature-icon { margin: 0 auto 16px; border-radius: 50%; width: 60px; height: 60px; background: #e4f7ec; color: var(--green); }
.feature-card h3 { font-size: 19px; }
.feature-card p { font-size: 15px; }

/* faq: two columns of rounded cards */
.faq-list { max-width: 1080px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: start; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 0 20px; transition: box-shadow var(--transition); }
.faq-item.open { box-shadow: var(--shadow-card); border-color: #b9d3fb; }
.faq-q { padding: 18px 0; font-size: 16px; gap: 12px; }
.faq-q::after { content: '+'; flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--surface-2); color: var(--primary); display: grid; place-items: center; font-size: 18px; line-height: 1; transition: transform var(--transition); }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a p { margin: 0; }

/* device tiles 2x2 */
.device-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
.device-card { border-radius: var(--radius-xl); padding: 30px; align-items: center; text-align: center; border: 1px solid var(--border); box-shadow: var(--shadow-card); transition: transform var(--transition), box-shadow var(--transition); }
.device-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.device-card .device-icon { width: 72px; height: 72px; line-height: 72px; border-radius: 50%; background: var(--surface-2); font-size: 34px; text-align: center; }
.device-card ul { text-align: left; }
.device-card .btn-cta { align-self: center; margin-top: 8px; }

/* pricing */
.pricing-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 22px; align-items: stretch; }
.pricing-card { border-radius: var(--radius-xl); padding: 34px 28px; text-align: center; border: 1px solid var(--border); box-shadow: var(--shadow-card); display: flex; flex-direction: column; }
.pricing-card .bullets { text-align: left; flex: 1; }
.pricing-card:first-child { border: 2px solid var(--green); background: linear-gradient(#f0fbf5, #fff 45%); }
.pricing-card:first-child::before { content: '建议先试这个'; position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--green); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 14px; border-radius: 999px; white-space: nowrap; }
.pricing-name { font-size: 16px; text-transform: none; letter-spacing: 0; color: var(--text); font-weight: 800; }
.pricing-price { font-size: 34px; }
.pricing-cta { background: none; padding: 0; margin-top: 18px; }
.pricing-cta .btn-cta { display: block; }
.payment-methods li { border-radius: 999px; padding: 9px 20px; }
.compare-table { border-radius: var(--radius-md); overflow: hidden; box-shadow: 0 0 0 1px var(--border); }
.compare-table th { background: var(--surface-2); }
.compare-table th.highlight { background: var(--primary); color: #fff; }
.compare-table .highlight { background: #eaf2ff; }

/* closing: rounded card on tint */
.closing-card { background: var(--surface); }
.closing-card .container { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-xl); padding: 52px 24px; text-align: center; box-shadow: var(--shadow-card); }
.closing-card .hero-cta-group { justify-content: center; }

/* footer: light */
.site-footer { background: var(--surface); color: var(--text-muted); border-top: 1px solid var(--border); }
.footer-brand .logo-footer { filter: none; }
.footer-heading { color: var(--text); text-transform: none; letter-spacing: 0; font-size: 15px; }
.footer-col ul li a { color: var(--text-muted); }
.footer-col ul li a:hover { color: var(--primary); }
.footer-bottom { border-top-color: var(--border); }

@media (max-width: 900px) {
  .steps3 { grid-template-columns: 1fr; }
  .trial { grid-template-columns: 1fr; padding: 32px 22px; }
  .faq-list { grid-template-columns: 1fr; }
  .hero-photo img { height: 240px; }
}
@media (max-width: 768px) {
  .nav-links { background: #fff; box-shadow: 0 12px 24px rgba(28,41,59,.12); border-top: 1px solid var(--border); }
  .nav-links > li > a, .nav-links .dropdown-toggle { color: var(--text); }
  .hero { padding-top: 44px; }
  .section { padding: 56px var(--space-sm); }
  .split-row { grid-template-columns: 1fr; gap: 24px; margin-bottom: 44px; }
  .split-image img { height: 240px; }
  .device-grid { grid-template-columns: 1fr; }
  .btn-text { display: block; text-align: center; margin: 0 auto; }
  .hero-photo figcaption { left: 12px; right: 12px; bottom: 12px; }
  .closing-card .container { padding: 36px 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .step3:hover, .device-card:hover { transform: none; }
}