:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #eef2ff;
  --ink: #111827;
  --muted: #667085;
  --line: #e5e7eb;
  --primary: #5b5cf0;
  --primary-2: #7c3aed;
  --cyan: #13b8c8;
  --green: #10b981;
  --red: #ef476f;
  --dark: #11152a;
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 32px;
  --shadow: 0 16px 45px rgba(35, 39, 82, .10);
  --shadow-lg: 0 32px 80px rgba(35, 39, 82, .16);
  --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: 520px;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 15% 10%, rgba(19,184,200,.16), transparent 30%),
    radial-gradient(circle at 76% 2%, rgba(124,58,237,.20), transparent 34%),
    linear-gradient(180deg, #fbfcff 0%, rgba(245,247,251,0) 100%);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
svg { flex: 0 0 auto; }
.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; left: 18px; top: -80px; z-index: 1000;
  padding: 10px 16px; color: #fff; background: var(--dark); border-radius: 10px;
}
.skip-link:focus { top: 14px; }
:focus-visible { outline: 3px solid rgba(91,92,240,.35); outline-offset: 3px; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid rgba(229,231,235,.75);
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(18px);
}
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.03em; }
.brand img { width: 44px; height: 44px; object-fit: cover; border-radius: 13px; box-shadow: 0 8px 18px rgba(91,92,240,.20); }
.brand-copy { display: grid; line-height: 1.05; }
.brand-name { font-size: 19px; }
.brand-note { margin-top: 6px; color: var(--muted); font-size: 10px; font-weight: 600; letter-spacing: .08em; }
.desktop-nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.desktop-nav a { padding: 10px 13px; border-radius: 10px; color: #475467; font-size: 14px; font-weight: 650; transition: .2s ease; }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: var(--primary); background: #eef0ff; }
.header-download { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 18px; color: #fff; background: var(--dark); border-radius: 13px; font-size: 14px; font-weight: 750; box-shadow: 0 10px 22px rgba(17,21,42,.16); }
.menu-button { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; border: 0; border-radius: 12px; color: var(--ink); background: #eef0f5; cursor: pointer; }
.mobile-nav { display: none; padding: 0 20px 18px; }
.mobile-nav a { display: block; padding: 12px 14px; border-radius: 10px; color: #344054; font-weight: 650; }
.mobile-nav a:hover, .mobile-nav a[aria-current="page"] { color: var(--primary); background: #eef0ff; }

.hero { padding: 86px 0 62px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 74px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 20px; padding: 7px 12px; color: #4f46e5; background: rgba(238,242,255,.9); border: 1px solid #dfe3ff; border-radius: 999px; font-size: 13px; font-weight: 760; }
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(16,185,129,.12); }
.hero h1, .page-hero h1 { margin: 0; font-size: clamp(42px, 5vw, 70px); line-height: 1.08; letter-spacing: -.055em; }
.gradient-text { color: transparent; background: linear-gradient(110deg, var(--primary), var(--primary-2) 58%, var(--cyan)); -webkit-background-clip: text; background-clip: text; }
.hero-lead { max-width: 650px; margin: 24px 0 0; color: #596279; font-size: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 48px; padding: 0 21px; border: 1px solid transparent; border-radius: 14px; font-weight: 760; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-2)); box-shadow: 0 14px 28px rgba(91,92,240,.26); }
.btn-primary:hover { box-shadow: 0 18px 35px rgba(91,92,240,.34); }
.btn-secondary { color: #3538a7; background: #fff; border-color: #d9dcf8; box-shadow: 0 10px 24px rgba(35,39,82,.07); }
.btn-sm { min-height: 42px; padding: 0 16px; font-size: 14px; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 28px; color: #667085; font-size: 13px; }
.hero-proof span { display: inline-flex; align-items: center; gap: 7px; }
.proof-check { display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; color: #fff; background: var(--green); font-size: 11px; font-weight: 900; }

.app-stage { position: relative; min-height: 485px; display: grid; place-items: center; }
.orb { position: absolute; border-radius: 50%; filter: blur(1px); }
.orb-a { width: 330px; height: 330px; background: linear-gradient(140deg, rgba(91,92,240,.22), rgba(19,184,200,.12)); }
.orb-b { right: -52px; top: 30px; width: 160px; height: 160px; border: 1px solid rgba(91,92,240,.2); }
.orb-c { left: 4px; bottom: 32px; width: 90px; height: 90px; background: rgba(124,58,237,.09); }
.app-window { position: relative; z-index: 3; width: min(100%, 510px); overflow: hidden; color: #e8e9ff; background: rgba(15,18,42,.96); border: 1px solid rgba(255,255,255,.13); border-radius: 26px; box-shadow: 0 36px 90px rgba(32,35,83,.32); transform: rotate(1deg); }
.window-bar { height: 52px; display: flex; align-items: center; justify-content: space-between; padding: 0 18px; background: rgba(255,255,255,.045); border-bottom: 1px solid rgba(255,255,255,.08); }
.window-brand { display: flex; align-items: center; gap: 9px; font-weight: 760; }
.window-brand img { width: 27px; height: 27px; object-fit: cover; border-radius: 8px; }
.window-dots { display: flex; gap: 7px; }
.window-dots i { width: 9px; height: 9px; border-radius: 50%; background: #4c526f; }
.window-dots i:first-child { background: #f4b740; }
.window-dots i:last-child { background: #ef476f; }
.rec-preview { position: relative; height: 225px; margin: 18px; overflow: hidden; background: linear-gradient(145deg, #20264d, #151831); border: 1px solid rgba(255,255,255,.08); border-radius: 16px; }
.preview-grid { position: absolute; inset: 0; opacity: .32; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 31px 31px; }
.rec-frame { position: absolute; inset: 29px 43px; border: 2px solid #48d79c; border-radius: 8px; box-shadow: 0 0 0 1000px rgba(5,8,24,.24); }
.rec-frame::before, .rec-frame::after { content: ""; position: absolute; width: 8px; height: 8px; background: #48d79c; border-radius: 2px; }
.rec-frame::before { left: -5px; top: -5px; }
.rec-frame::after { right: -5px; bottom: -5px; }
.timer { position: absolute; left: 50%; top: 50%; z-index: 2; transform: translate(-50%,-50%); display: flex; align-items: center; gap: 10px; font-size: 28px; font-variant-numeric: tabular-nums; font-weight: 760; }
.timer-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 8px rgba(239,71,111,.12); }
.toolbar { display: grid; grid-template-columns: repeat(4,1fr); gap: 9px; padding: 0 18px 18px; }
.tool { display: grid; place-items: center; gap: 6px; min-height: 70px; color: #9ca4cb; background: rgba(255,255,255,.045); border-radius: 13px; font-size: 11px; }
.tool.active { color: #fff; background: linear-gradient(145deg, rgba(91,92,240,.65), rgba(124,58,237,.48)); }
.tool svg { width: 20px; height: 20px; }
.floating-chip { position: absolute; z-index: 5; display: flex; align-items: center; gap: 10px; padding: 11px 14px; color: #344054; background: rgba(255,255,255,.94); border: 1px solid rgba(255,255,255,.85); border-radius: 13px; box-shadow: 0 18px 38px rgba(35,39,82,.15); font-size: 13px; font-weight: 700; backdrop-filter: blur(12px); }
.chip-one { top: 42px; left: -22px; }
.chip-two { right: -18px; bottom: 52px; }
.chip-icon { display: grid; place-items: center; width: 29px; height: 29px; color: var(--primary); background: #eef0ff; border-radius: 9px; }

.trust-strip { padding: 5px 0 54px; }
.trust-grid { display: grid; grid-template-columns: repeat(4,1fr); overflow: hidden; background: rgba(255,255,255,.75); border: 1px solid rgba(223,226,237,.9); border-radius: var(--radius); box-shadow: 0 12px 35px rgba(35,39,82,.05); }
.trust-item { padding: 22px 24px; text-align: center; border-right: 1px solid var(--line); }
.trust-item:last-child { border-right: 0; }
.trust-item strong { display: block; color: #22264a; font-size: 23px; letter-spacing: -.03em; }
.trust-item span { color: var(--muted); font-size: 12px; }

.section { padding: 86px 0; }
.section-white { background: #fff; }
.section-dark { color: #fff; background: var(--dark); }
.section-head { max-width: 710px; margin-bottom: 38px; }
.section-head.center { margin-right: auto; margin-left: auto; text-align: center; }
.section-kicker { margin-bottom: 10px; color: var(--primary); font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.section h2, .content-card h2 { margin: 0; font-size: clamp(30px, 4vw, 46px); line-height: 1.18; letter-spacing: -.04em; }
.section-head p { margin: 14px 0 0; color: var(--muted); font-size: 17px; }
.section-dark .section-head p { color: #aab1d4; }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.feature-card { min-height: 236px; padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(35,39,82,.04); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.feature-card:hover { transform: translateY(-5px); border-color: #ced2ff; box-shadow: var(--shadow); }
.feature-icon { width: 46px; height: 46px; display: grid; place-items: center; margin-bottom: 24px; color: var(--primary); background: #eef0ff; border-radius: 14px; }
.feature-card:nth-child(2n) .feature-icon { color: #0f8995; background: #e5fafc; }
.feature-card:nth-child(3n) .feature-icon { color: #8b3bd8; background: #f3eaff; }
.feature-card h3 { margin: 0 0 8px; font-size: 19px; letter-spacing: -.02em; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; }

.workflow { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: center; }
.workflow-visual { position: relative; min-height: 420px; display: grid; place-items: center; }
.selection-canvas { width: min(100%, 465px); aspect-ratio: 1.08; position: relative; overflow: hidden; background: linear-gradient(145deg,#f8f9ff,#e9edff); border: 1px solid #dfe3f0; border-radius: 28px; box-shadow: var(--shadow); }
.selection-canvas::before { content: ""; position: absolute; inset: 0; opacity: .6; background-image: radial-gradient(#adb4db 1px, transparent 1px); background-size: 20px 20px; }
.selection-window { position: absolute; inset: 58px 48px; display: grid; place-items: center; color: #fff; background: linear-gradient(145deg,#24284b,#13162f); border: 3px solid #37d696; border-radius: 12px; box-shadow: 0 20px 38px rgba(38,43,94,.24); }
.selection-window::after { content: "1080P · 60 FPS"; padding: 7px 10px; color: #dfe3ff; background: rgba(255,255,255,.09); border-radius: 8px; font-size: 11px; font-weight: 700; letter-spacing: .06em; }
.step-list { display: grid; gap: 12px; margin-top: 28px; }
.step-item { display: grid; grid-template-columns: 48px 1fr; gap: 15px; padding: 18px; border: 1px solid transparent; border-radius: 16px; transition: .2s ease; }
.step-item:hover { background: #fff; border-color: var(--line); box-shadow: 0 12px 30px rgba(35,39,82,.05); }
.step-num { width: 44px; height: 44px; display: grid; place-items: center; color: var(--primary); background: #eceeff; border-radius: 13px; font-weight: 850; }
.step-item h3 { margin: 1px 0 3px; font-size: 17px; }
.step-item p { margin: 0; color: var(--muted); font-size: 14px; }

.use-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.use-card { position: relative; min-height: 260px; padding: 25px; overflow: hidden; background: linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.025)); border: 1px solid rgba(255,255,255,.11); border-radius: var(--radius); }
.use-card::after { content: ""; position: absolute; right: -28px; bottom: -45px; width: 130px; height: 130px; border-radius: 50%; background: var(--glow,rgba(91,92,240,.25)); filter: blur(4px); }
.use-card .number { color: #737cae; font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.use-card h3 { margin: 58px 0 8px; font-size: 20px; }
.use-card p { position: relative; z-index: 1; margin: 0; color: #aab1d4; font-size: 14px; }

.compare-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.compare-table { width: 100%; min-width: 680px; border-collapse: collapse; }
.compare-table th, .compare-table td { padding: 18px 22px; text-align: left; border-bottom: 1px solid var(--line); }
.compare-table th { color: #667085; background: #f9fafb; font-size: 13px; }
.compare-table th:nth-child(2), .compare-table td:nth-child(2) { color: #3438a8; background: #f4f5ff; font-weight: 720; }
.compare-table tr:last-child td { border-bottom: 0; }
.compare-note { margin: 18px 0 0; color: var(--muted); font-size: 13px; }

.faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item { overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.faq-question { width: 100%; min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 16px 20px; color: var(--ink); background: transparent; border: 0; text-align: left; font-weight: 720; cursor: pointer; }
.faq-question svg { transition: transform .2s ease; }
.faq-question[aria-expanded="true"] svg { transform: rotate(180deg); }
.faq-answer { display: none; padding: 0 20px 20px; color: var(--muted); font-size: 14px; }
.faq-answer p { margin: 0; }
.faq-item.is-open .faq-answer { display: block; }

.article-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.article-card { display: flex; min-height: 190px; flex-direction: column; padding: 25px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); transition: .2s ease; }
.article-card:hover { transform: translateY(-4px); border-color: #cfd3ff; box-shadow: var(--shadow); }
.article-tag { color: var(--primary); font-size: 12px; font-weight: 800; }
.article-card h3 { margin: 13px 0 8px; font-size: 19px; line-height: 1.4; }
.article-card p { margin: 0; color: var(--muted); font-size: 13px; }
.article-arrow { margin-top: auto; padding-top: 18px; color: #3438a8; font-size: 13px; font-weight: 750; }

.cta-section { padding: 36px 0 92px; }
.cta-box { position: relative; overflow: hidden; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; padding: 42px 48px; color: #fff; background: linear-gradient(120deg,#292d63,#5b5cf0 60%,#7041db); border-radius: var(--radius-lg); box-shadow: 0 26px 65px rgba(72,65,190,.26); }
.cta-box::after { content: ""; position: absolute; right: -70px; top: -110px; width: 300px; height: 300px; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; }
.cta-box h2 { position: relative; z-index: 1; margin: 0; font-size: clamp(27px,4vw,42px); letter-spacing: -.04em; }
.cta-box p { position: relative; z-index: 1; margin: 7px 0 0; color: #d7daf8; }
.cta-box .btn { position: relative; z-index: 1; color: #3235a7; background: #fff; box-shadow: 0 12px 25px rgba(20,20,50,.16); }

.page-hero { padding: 70px 0 56px; text-align: center; }
.page-hero h1 { max-width: 900px; margin: 0 auto; font-size: clamp(36px,5vw,58px); }
.page-hero p { max-width: 710px; margin: 20px auto 0; color: var(--muted); font-size: 17px; }
.breadcrumbs { margin-bottom: 20px; color: #7b8198; font-size: 13px; }
.breadcrumbs a:hover { color: var(--primary); }
.content-layout { display: grid; grid-template-columns: minmax(0,1fr) 290px; gap: 28px; align-items: start; padding-bottom: 90px; }
.content-main { display: grid; gap: 22px; }
.content-card { padding: 34px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(35,39,82,.04); }
.content-card h2 { margin-bottom: 18px; font-size: 27px; }
.content-card h3 { margin: 26px 0 8px; font-size: 19px; }
.content-card p { color: #525d73; }
.content-card p:last-child { margin-bottom: 0; }
.content-card ul, .content-card ol { padding-left: 22px; color: #525d73; }
.content-card li + li { margin-top: 8px; }
.content-card a:not(.btn) { color: #4f46e5; text-decoration: underline; text-underline-offset: 3px; }
.download-panel { display: grid; grid-template-columns: 100px 1fr auto; align-items: center; gap: 22px; }
.download-panel img { width: 100px; height: 100px; object-fit: cover; border-radius: 24px; box-shadow: 0 14px 34px rgba(91,92,240,.18); }
.download-panel h2 { margin: 0 0 5px; }
.download-panel p { margin: 0; }
.spec-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; margin-top: 18px; }
.spec { padding: 15px; color: #596279; background: #f7f8fc; border-radius: 12px; font-size: 13px; }
.spec strong { display: block; color: var(--ink); font-size: 15px; }
.notice { padding: 18px 20px; color: #5c4a12; background: #fff9df; border: 1px solid #f4e5a8; border-radius: 14px; font-size: 14px; }
.tip { padding: 18px 20px; color: #1f5260; background: #eaf9fb; border: 1px solid #c7edf1; border-radius: 14px; font-size: 14px; }
.steps-article { counter-reset: article-step; display: grid; gap: 14px; }
.article-step { counter-increment: article-step; position: relative; padding: 21px 21px 21px 70px; background: #f8f9fc; border-radius: 15px; }
.article-step::before { content: counter(article-step); position: absolute; left: 18px; top: 18px; width: 36px; height: 36px; display: grid; place-items: center; color: #fff; background: linear-gradient(145deg,var(--primary),var(--primary-2)); border-radius: 11px; font-weight: 800; }
.article-step h3 { margin: 0 0 5px; }
.article-step p { margin: 0; font-size: 14px; }
.sidebar { position: sticky; top: 98px; display: grid; gap: 16px; }
.sidebar-card { padding: 22px; background: #fff; border: 1px solid var(--line); border-radius: 17px; }
.sidebar-card h3 { margin: 0 0 12px; font-size: 16px; }
.sidebar-links { display: grid; gap: 6px; }
.sidebar-links a { padding: 9px 10px; color: #596279; background: #f8f9fc; border-radius: 9px; font-size: 13px; }
.sidebar-links a:hover { color: var(--primary); background: #eef0ff; }
.sidebar-download { color: #fff; background: linear-gradient(145deg,#24284d,#4d46b8); border: 0; }
.sidebar-download p { margin: 0 0 14px; color: #cdd1f1; font-size: 13px; }
.sidebar-download .btn { width: 100%; color: #3336aa; background: #fff; }
.keyword-links { display: flex; flex-wrap: wrap; gap: 8px; }
.keyword-links a { padding: 7px 10px; color: #586078; background: #f2f4f8; border-radius: 999px; font-size: 12px; }

.site-footer { padding: 62px 0 110px; color: #aab1c8; background: #0e1124; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(2,.8fr); gap: 55px; }
.footer-brand { color: #fff; }
.footer-brand .brand-note { color: #858da9; }
.footer-desc { max-width: 430px; margin: 16px 0 0; font-size: 13px; }
.site-footer h3 { margin: 0 0 15px; color: #fff; font-size: 14px; }
.footer-links { display: grid; gap: 8px; }
.footer-links a { font-size: 13px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.08); font-size: 12px; }

.float-download { position: fixed; left: 50%; bottom: 14px; z-index: 90; width: min(calc(100% - 28px), 700px); transform: translate(-50%,130%); transition: transform .35s cubic-bezier(.2,.8,.2,1); }
.float-download.is-visible { transform: translate(-50%,0); }
.float-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 10px 12px 10px 18px; color: #fff; background: rgba(17,21,42,.94); border: 1px solid rgba(255,255,255,.13); border-radius: 18px; box-shadow: 0 18px 50px rgba(10,13,30,.34); backdrop-filter: blur(18px); }
.float-copy { display: flex; align-items: center; gap: 10px; min-width: 0; }
.float-copy img { width: 36px; height: 36px; object-fit: cover; border-radius: 10px; }
.float-copy strong { display: block; font-size: 14px; }
.float-copy span { display: block; color: #aeb5d3; font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.float-inner .btn { min-height: 42px; padding: 0 18px; font-size: 13px; }

@media (max-width: 980px) {
  .desktop-nav, .header-download { display: none; }
  .menu-button { display: inline-flex; }
  .mobile-nav.is-open { display: grid; }
  .hero { padding-top: 58px; }
  .hero-grid, .workflow { grid-template-columns: 1fr; gap: 48px; }
  .hero-copy { text-align: center; }
  .hero-lead { margin-right: auto; margin-left: auto; }
  .hero-actions, .hero-proof { justify-content: center; }
  .app-stage { min-height: 440px; }
  .feature-grid { grid-template-columns: repeat(2,1fr); }
  .use-grid { grid-template-columns: repeat(2,1fr); }
  .content-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 700px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .nav-wrap { min-height: 68px; }
  .brand img { width: 39px; height: 39px; }
  .brand-name { font-size: 17px; }
  .hero { padding: 42px 0 40px; }
  .hero h1, .page-hero h1 { font-size: 38px; }
  .hero-lead, .page-hero p { font-size: 15px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .hero-proof { gap: 8px 14px; }
  .app-stage { min-height: 340px; }
  .app-window { border-radius: 20px; transform: none; }
  .window-bar { height: 44px; }
  .rec-preview { height: 150px; margin: 12px; }
  .rec-frame { inset: 22px 30px; }
  .timer { font-size: 21px; }
  .toolbar { padding: 0 12px 12px; }
  .tool { min-height: 58px; }
  .floating-chip { display: none; }
  .trust-grid { grid-template-columns: repeat(2,1fr); }
  .trust-item { padding: 17px 12px; }
  .trust-item:nth-child(2) { border-right: 0; }
  .trust-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .trust-item strong { font-size: 19px; }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 28px; }
  .section-head p { font-size: 15px; }
  .feature-grid, .use-grid, .article-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: auto; }
  .use-card { min-height: 210px; }
  .use-card h3 { margin-top: 36px; }
  .workflow-visual { min-height: 320px; }
  .selection-window { inset: 42px 30px; }
  .step-item { padding: 14px 8px; }
  .cta-section { padding-bottom: 70px; }
  .cta-box { grid-template-columns: 1fr; padding: 30px 24px; text-align: center; }
  .cta-box .btn { width: 100%; }
  .page-hero { padding: 48px 0 38px; }
  .content-card { padding: 24px 20px; }
  .download-panel { grid-template-columns: 74px 1fr; }
  .download-panel img { width: 74px; height: 74px; border-radius: 18px; }
  .download-panel .btn { grid-column: 1 / -1; width: 100%; }
  .spec-grid { grid-template-columns: 1fr; }
  .sidebar { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px 25px; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
  .float-copy span { max-width: 145px; }
  .float-inner .btn svg { display: none; }
}

@media (max-width: 380px) {
  .hero h1, .page-hero h1 { font-size: 33px; }
  .float-copy img { display: none; }
  .float-copy span { max-width: 120px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}