/* ===== Reset & base ===== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

:root {
  --violet-900: #2E1065;
  --violet-700: #6D28D9;
  --violet-600: #7C3AED;
  --violet-500: #8B5CF6;
  --violet-100: #EDE9FE;
  --violet-50:  #F5F3FF;

  --orange-500: #F97316;
  --orange-400: #FB923C;

  --slate-900: #0F172A;
  --slate-800: #1E293B;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748B;
  --slate-400: #94A3B8;
  --slate-300: #CBD5E1;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;
  --slate-50:  #F8FAFC;

  --white: #FFFFFF;
  --bg: var(--white);
  --bg-alt: var(--slate-50);
  --text: var(--slate-900);
  --text-muted: var(--slate-500);
  --border: var(--slate-200);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.04), 0 1px 3px rgba(15,23,42,.06);
  --shadow: 0 4px 6px rgba(15,23,42,.04), 0 10px 30px rgba(15,23,42,.06);
  --shadow-lg: 0 20px 50px rgba(15,23,42,.12);
  --shadow-violet: 0 20px 45px rgba(109,40,217,.22);
  --container: 1140px;
  --header-h: 68px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --mono: 'JetBrains Mono', "SF Mono", Menlo, Consolas, monospace;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img, svg { display: block; max-width: 100%; }
code, pre { font-family: var(--mono); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-block { width: 100%; }
.btn-primary {
  background: linear-gradient(135deg, var(--violet-600), var(--violet-700));
  color: #fff;
  box-shadow: 0 8px 20px rgba(109,40,217,.28);
}
.btn-primary:hover { box-shadow: 0 12px 28px rgba(109,40,217,.38); transform: translateY(-1px); }
.btn-ghost {
  background: rgba(255,255,255,.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,.25);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(255,255,255,.16); }
.btn-light {
  background: #fff;
  color: var(--violet-700);
  box-shadow: var(--shadow);
}
.btn-light:hover { transform: translateY(-1px); }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,.8);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.site-header.scrolled {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: -.02em; }
.brand-mark {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--violet-600), var(--violet-700));
  color: #fff; font-weight: 800; font-size: 18px;
  box-shadow: 0 4px 12px rgba(109,40,217,.35);
}
.main-nav { display: flex; gap: 6px; }
.main-nav a {
  padding: 8px 14px; border-radius: 8px; font-weight: 500; color: var(--slate-700);
  font-size: 15px; transition: background .15s, color .15s;
}
.main-nav a:hover { background: var(--slate-100); color: var(--violet-700); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.lang-switch {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 8px 12px; border-radius: 8px;
  border: 1px solid var(--border); background: #fff;
  font-weight: 600; font-size: 14px; color: var(--slate-700);
  transition: border-color .15s, box-shadow .15s;
}
.lang-switch:hover { border-color: var(--violet-500); box-shadow: 0 0 0 3px var(--violet-50); }
.lang-current { min-width: 22px; text-align: left; }
.lang-menu {
  position: fixed; top: calc(var(--header-h) - 6px); right: 24px; z-index: 101;
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  box-shadow: var(--shadow); padding: 6px; min-width: 140px;
}
.lang-menu[hidden] { display: none; }
.lang-option {
  display: block; width: 100%; text-align: left;
  padding: 10px 14px; border-radius: 8px; font-weight: 500; color: var(--slate-700);
}
.lang-option:hover { background: var(--violet-50); color: var(--violet-700); }

.nav-toggle { display: none; flex-direction: column; gap: 4px; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--slate-800); border-radius: 2px; transition: transform .2s, opacity .2s; }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 80px) 0 90px;
  background: radial-gradient(120% 120% at 80% -10%, var(--violet-500) 0%, var(--violet-700) 38%, var(--violet-900) 100%);
  color: #fff;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(251,146,60,.18), transparent 40%),
    radial-gradient(circle at 85% 70%, rgba(139,92,246,.25), transparent 45%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 40%, transparent 100%);
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center;
}
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22);
  font-size: 13px; font-weight: 500; color: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--orange-400); box-shadow: 0 0 10px var(--orange-400); }
.hero-title {
  font-size: clamp(34px, 4.4vw, 56px); line-height: 1.08; font-weight: 800;
  letter-spacing: -.025em; margin: 22px 0 18px;
}
.hero-sub {
  font-size: 18px; line-height: 1.6; color: rgba(255,255,255,.82);
  max-width: 540px;
}
.hero-cta { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.hero-meta {
  margin-top: 26px; display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; color: rgba(255,255,255,.62);
}
.hero-meta code {
  padding: 6px 12px; border-radius: 8px;
  background: rgba(0,0,0,.24); color: #E9D5FF; font-size: 13px;
  border: 1px solid rgba(255,255,255,.12);
}

/* Code window */
.code-window { background: #0B1020; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); border: 1px solid rgba(255,255,255,.06); }
.code-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; background: #131A30; border-bottom: 1px solid rgba(255,255,255,.06); }
.code-bar .dot { width: 12px; height: 12px; border-radius: 50%; }
.code-bar .red { background: #FF5F57; } .code-bar .yellow { background: #FEBC2E; } .code-bar .green { background: #28C840; }
.code-file { margin-left: 10px; font-size: 12px; color: var(--slate-400); font-family: var(--mono); }
.code-block { margin: 0; padding: 22px 24px; overflow-x: auto; font-size: 13.5px; line-height: 1.75; color: #E2E8F0; }
.code-block code { font-family: var(--mono); white-space: pre; }
.code-block .kw { color: #C084FC; }
.code-block .str { color: #86EFAC; }
.code-block .num { color: #FCD34D; }
.code-block .com { color: #64748B; font-style: italic; }
.hero-code { position: relative; }
.hero-code::before {
  content: ""; position: absolute; inset: -30px -20px -30px 0; z-index: -1;
  background: radial-gradient(ellipse 70% 70% at 70% 30%, rgba(251,146,60,.22), transparent 70%);
  filter: blur(20px);
}

/* ===== Trust bar ===== */
.trust { padding: 30px 0; border-bottom: 1px solid var(--border); background: var(--bg); }
.trust-inner { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.trust-label { font-size: 13px; font-weight: 600; color: var(--slate-500); text-transform: uppercase; letter-spacing: .04em; }
.trust-items { display: flex; gap: 28px; flex-wrap: wrap; }
.trust-items span { font-weight: 600; color: var(--slate-700); font-size: 15px; }

/* ===== Sections ===== */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--violet-600); margin-bottom: 14px; }
.section-title { font-size: clamp(28px, 3.2vw, 42px); font-weight: 800; letter-spacing: -.02em; line-height: 1.15; }
.section-sub { margin-top: 16px; font-size: 18px; color: var(--text-muted); line-height: 1.6; }

/* Feature grid */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature-card {
  padding: 28px 24px; border-radius: var(--radius); background: #fff;
  border: 1px solid var(--border); transition: transform .2s, box-shadow .2s, border-color .2s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--violet-100); }
.feature-icon {
  width: 46px; height: 46px; border-radius: 12px; margin-bottom: 16px;
  background: var(--violet-50); display: grid; place-items: center;
  position: relative;
}
.feature-icon::before { content: ""; position: absolute; inset: 0; border-radius: 12px; background: linear-gradient(135deg, var(--violet-100), var(--violet-50)); }
.feature-icon::after { content: ""; position: relative; z-index: 1; width: 22px; height: 22px; }
.icon-chart::after { background: var(--violet-700); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='M4 20V10M10 20V4M16 20v-7M22 20H2'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='M4 20V10M10 20V4M16 20v-7M22 20H2'/%3E%3C/svg%3E") center/contain no-repeat; }
.icon-table::after { background: var(--violet-700); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='18' rx='2'/%3E%3Cpath d='M3 9h18M3 15h18M9 3v18M15 3v18'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='18' rx='2'/%3E%3Cpath d='M3 9h18M3 15h18M9 3v18M15 3v18'/%3E%3C/svg%3E") center/contain no-repeat; }
.icon-text::after { background: var(--violet-700); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 7V5h16v2M9 19h6M12 5v14'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 7V5h16v2M9 19h6M12 5v14'/%3E%3C/svg%3E") center/contain no-repeat; }
.icon-shapes::after { background: var(--violet-700); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='8' height='8' rx='1'/%3E%3Ccircle cx='17' cy='7' r='4'/%3E%3Cpath d='M7 21l4-7H3z'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='8' height='8' rx='1'/%3E%3Ccircle cx='17' cy='7' r='4'/%3E%3Cpath d='M7 21l4-7H3z'/%3E%3C/svg%3E") center/contain no-repeat; }
.icon-master::after { background: var(--violet-700); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='13' rx='2'/%3E%3Cpath d='M3 20h18'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='13' rx='2'/%3E%3Cpath d='M3 20h18'/%3E%3C/svg%3E") center/contain no-repeat; }
.icon-compat::after { background: var(--violet-700); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat; }
.icon-server::after { background: var(--violet-700); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='7' rx='2'/%3E%3Crect x='3' y='13' width='18' height='7' rx='2'/%3E%3Cpath d='M7 8h0M7 17h0'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='7' rx='2'/%3E%3Crect x='3' y='13' width='18' height='7' rx='2'/%3E%3Cpath d='M7 8h0M7 17h0'/%3E%3C/svg%3E") center/contain no-repeat; }
.icon-native::after { background: var(--violet-700); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M8 8l-5 4 5 4M16 8l5 4-5 4M14 4l-4 16'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M8 8l-5 4 5 4M16 8l5 4-5 4M14 4l-4 16'/%3E%3C/svg%3E") center/contain no-repeat; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 14.5px; line-height: 1.6; }

/* Examples */
.example-wrap { max-width: 860px; margin: 0 auto; }
.example-tabs { display: flex; gap: 8px; justify-content: center; margin-bottom: 20px; flex-wrap: wrap; }
.tab {
  padding: 9px 18px; border-radius: 999px; font-weight: 600; font-size: 14px;
  color: var(--slate-600); border: 1px solid var(--border); background: #fff;
  transition: all .15s;
}
.tab:hover { color: var(--violet-700); border-color: var(--violet-300); }
.tab.active { background: var(--violet-700); color: #fff; border-color: var(--violet-700); }
.example-panel { animation: fadeIn .25s ease; }
.example-panel[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* Why section */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.why-list { margin-top: 28px; display: flex; flex-direction: column; gap: 18px; }
.why-list li { display: flex; gap: 14px; align-items: flex-start; font-size: 16px; }
.why-list strong { display: block; margin-bottom: 2px; }
.why-list li > span:last-child { color: var(--text-muted); }
.check { flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%; background: var(--violet-100); position: relative; margin-top: 2px; }
.check::after { content: ""; position: absolute; inset: 0; width: 14px; height: 14px; margin: auto; background: var(--violet-700); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat; }

.compare-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 8px; box-shadow: var(--shadow); }
.compare-row { padding: 24px; }
.compare-old { background: var(--slate-50); border-radius: 18px 18px 0 0; }
.compare-new { background: linear-gradient(180deg, var(--violet-50), #fff); border-radius: 0 0 18px 18px; }
.compare-divider { height: 1px; background: var(--border); }
.compare-tag { display: inline-block; font-weight: 700; font-size: 13px; padding: 5px 12px; border-radius: 999px; margin-bottom: 16px; }
.compare-old .compare-tag { background: var(--slate-200); color: var(--slate-600); }
.tag-new { background: var(--violet-700) !important; color: #fff !important; }
.compare-row ul { display: flex; flex-direction: column; gap: 10px; }
.compare-row li { font-size: 14.5px; color: var(--slate-700); padding-left: 24px; position: relative; }
.compare-old li::before { content: "✕"; position: absolute; left: 0; color: #EF4444; font-weight: 700; }
.compare-new li::before { content: "✓"; position: absolute; left: 0; color: var(--violet-700); font-weight: 700; }

/* Pricing */
.pricing-grid { max-width: 480px; margin: 0 auto; }
.price-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 36px 32px; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.price-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: linear-gradient(90deg, var(--violet-600), var(--orange-400)); }
.price-flag { display: inline-block; font-weight: 700; font-size: 13px; color: var(--violet-700); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 22px; }
.price-region { display: flex; gap: 6px; margin-bottom: 22px; padding: 4px; background: var(--slate-100); border-radius: 999px; width: fit-content; }
.region-btn { padding: 7px 16px; border-radius: 999px; font-size: 13px; font-weight: 600; color: var(--slate-600); transition: all .15s; }
.region-btn.active { background: #fff; color: var(--violet-700); box-shadow: var(--shadow-sm); }
.price-amount { display: flex; align-items: baseline; gap: 4px; margin-bottom: 8px; }
.price-currency { font-size: 30px; font-weight: 700; color: var(--slate-600); }
.price-value { font-size: 64px; font-weight: 800; letter-spacing: -.03em; line-height: 1; background: linear-gradient(135deg, var(--violet-700), var(--violet-500)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.price-unit { font-size: 18px; color: var(--text-muted); font-weight: 500; }
.price-note { font-size: 14px; color: var(--text-muted); margin-bottom: 28px; min-height: 21px; }
.price-features { display: flex; flex-direction: column; gap: 14px; margin-bottom: 28px; }
.price-features li { display: flex; align-items: center; gap: 12px; font-size: 15px; }
.price-features .check { width: 22px; height: 22px; }
.price-guarantee { text-align: center; font-size: 13px; color: var(--text-muted); margin-top: 16px; }

/* FAQ */
.faq-wrap { max-width: 760px; margin: 0 auto; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); transition: box-shadow .15s, border-color .15s; }
.faq-item[open] { box-shadow: var(--shadow-sm); border-color: var(--violet-200); }
.faq-item summary { padding: 20px 24px; font-weight: 600; font-size: 16.5px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 22px; font-weight: 400; color: var(--violet-600); transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 24px 22px; color: var(--text-muted); font-size: 15.5px; line-height: 1.65; }

/* CTA strip */
.cta-strip { background: linear-gradient(135deg, var(--violet-900), var(--violet-700)); color: #fff; padding: 72px 0; text-align: center; }
.cta-inner { max-width: 680px; }
.cta-inner h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; letter-spacing: -.02em; }
.cta-inner p { margin: 12px 0 28px; color: rgba(255,255,255,.82); font-size: 18px; }

/* Footer */
.site-footer { background: var(--slate-900); color: var(--slate-400); padding: 64px 0 28px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: 48px; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-brand .brand { color: #fff; }
.footer-tag { margin-top: 14px; font-size: 14.5px; color: var(--slate-400); max-width: 280px; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col h4 { color: #fff; font-size: 14px; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 16px; }
.footer-col a { display: block; padding: 5px 0; font-size: 14.5px; color: var(--slate-400); transition: color .15s; }
.footer-col a:hover { color: var(--violet-300); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; font-size: 13.5px; color: var(--slate-500); }
.footer-domain { font-family: var(--mono); color: var(--violet-300); }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-inner { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 720px) {
  .main-nav { display: none; }
  .header-actions .btn-sm { display: none; }
  .nav-toggle { display: flex; }
  .nav-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .main-nav.mobile-open {
    display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border); padding: 12px 24px; box-shadow: var(--shadow);
  }
  .main-nav.mobile-open a { padding: 12px 14px; }
  .section { padding: 64px 0; }
  .hero { padding: calc(var(--header-h) + 48px) 0 56px; }
  .trust-items { gap: 16px; }
  .price-card { padding: 28px 22px; }
  .price-value { font-size: 54px; }
}
@media (max-width: 520px) {
  .feature-grid { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
  .hero-cta .btn { width: 100%; }
  .compare-row { padding: 18px; }
}