/* =========================================================
   Wavith · marketing site
   Black + white + douyin-red accent · Linear-inspired
   ========================================================= */

:root {
  --accent: #FE2C55;
  --accent-soft: #fee5eb;
  --accent-ring: rgba(254, 44, 85, 0.22);

  --ink: #0a0a0a;
  --ink-2: #18181b;
  --ink-body: #3f3f46;
  --ink-mute: #71717a;
  --ink-soft: #a1a1aa;

  --bg: #ffffff;
  --bg-alt: #fafafa;
  --bg-mute: #f4f4f5;
  --line: #e4e4e7;
  --line-soft: #f1f1f3;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);
  --shadow-md: 0 6px 24px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, .14), 0 4px 8px rgba(15, 23, 42, .04);

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text",
               "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

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

/* ============================ NAV ============================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line-soft);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; letter-spacing: -0.01em;
  font-size: 17px;
}
.brand-logo {
  height: 22px;
  width: auto;
  display: block;
}
.brand__mark {
  width: 28px; height: 28px; border-radius: 7px;
  background: var(--ink);
  display: grid; place-items: center;
  overflow: hidden;
}
.brand__mark img { width: 76%; height: 76%; }
.brand__word { color: var(--ink); }

.lang-switch {
  display: inline-flex; align-items: center; justify-content: center;
  height: 30px; min-width: 38px; padding: 0 10px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: transparent;
  font-size: 13px; font-weight: 500;
  color: var(--ink-body);
  transition: background var(--ease) .15s, color var(--ease) .15s, border-color var(--ease) .15s;
}
.lang-switch:hover {
  background: var(--bg-mute);
  color: var(--ink);
  border-color: var(--line);
}

.nav__links {
  display: flex; align-items: center; gap: 28px;
  font-size: 14px; color: var(--ink-body);
}
.nav__links a {
  position: relative;
  transition: color var(--ease) .15s;
}
.nav__links a:hover { color: var(--ink); }

.nav__cta { display: flex; align-items: center; gap: 10px; }

/* ============================ BUTTONS ============================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  height: 38px; padding: 0 16px;
  border-radius: var(--r-sm);
  font-size: 14px; font-weight: 500;
  border: 1px solid transparent;
  transition: background var(--ease) .15s, transform var(--ease) .15s, color var(--ease) .15s, border-color var(--ease) .15s;
  white-space: nowrap;
}
.btn--sm  { height: 30px; padding: 0 12px; font-size: 13px; border-radius: 5px; }
.btn--lg  { height: 46px; padding: 0 22px; font-size: 15px; }
.btn--xl  { height: 54px; padding: 0 28px; font-size: 16px; border-radius: 8px; }

.btn--primary {
  background: var(--ink); color: #fff; border-color: var(--ink);
}
.btn--primary:hover {
  background: var(--ink-2); transform: translateY(-1px);
}
.btn--ghost {
  background: transparent; color: var(--ink); border-color: var(--line);
}
.btn--ghost:hover { background: var(--bg-mute); border-color: var(--line); }

/* ============================ HERO ============================ */
.hero {
  position: relative;
  padding: 88px 0 96px;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(circle at 50% -10%, rgba(254, 44, 85, 0.06), transparent 50%),
    linear-gradient(180deg, #fff 0%, #fafafa 100%);
}
.hero__bg::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(10, 10, 10, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 10, 10, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 40%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, #000 0%, transparent 70%);
}
.hero__inner {
  position: relative; z-index: 1;
  text-align: center;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  font-size: 12px; font-weight: 500; letter-spacing: 0.02em;
  color: var(--ink-body);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}
.dot {
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.hero__title {
  margin: 28px 0 22px;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 700;
}
.hero__title-accent {
  background: linear-gradient(90deg, var(--ink) 0%, var(--ink-mute) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__sub {
  margin: 0 auto;
  max-width: 640px;
  font-size: 18px;
  color: var(--ink-body);
  line-height: 1.6;
}

.hero__cta {
  margin: 36px 0 56px;
  display: flex; gap: 12px;
  justify-content: center; flex-wrap: wrap;
}

.hero__meta {
  display: inline-flex; align-items: center; gap: 36px;
  padding: 20px 32px;
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
}
.meta-item { display: flex; flex-direction: column; align-items: center; }
.meta-num { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; }
.meta-label { font-size: 12px; color: var(--ink-mute); margin-top: 2px; }
.meta-divider { width: 1px; height: 28px; background: var(--line); }

/* ============================ SECTION HEAD ============================ */
.section-head { text-align: center; margin-bottom: 56px; }
.kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px; font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.12em;
}
.kicker--light { color: rgba(255, 255, 255, 0.7); }
.section-head h2 {
  margin: 12px 0 14px;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.025em;
  font-weight: 700;
  line-height: 1.15;
}
.section-sub {
  margin: 0 auto;
  max-width: 580px;
  color: var(--ink-body);
  font-size: 16px;
}

/* ============================ SHOWCASE ============================ */
.showcase { padding: 80px 0; background: var(--bg); }

.mockup {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 36px;
}
.mockup__chrome {
  display: flex; align-items: center; gap: 16px;
  height: 40px; padding: 0 16px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--line-soft);
}
.mockup__dots { display: flex; gap: 6px; }
.mockup__dots span {
  width: 10px; height: 10px; border-radius: 999px;
  background: var(--bg-mute);
  border: 1px solid var(--line);
}
.mockup__dots span:nth-child(1) { background: #FE5F57; border-color: transparent; }
.mockup__dots span:nth-child(2) { background: #FEBC2E; border-color: transparent; }
.mockup__dots span:nth-child(3) { background: #28C840; border-color: transparent; }
.mockup__url {
  flex: 1; text-align: center;
  font-family: var(--font-mono); font-size: 12px;
  color: var(--ink-mute);
}

/* App-shell style mock */
.app { display: grid; grid-template-columns: 200px 1fr; min-height: 460px; }
.app__sider {
  background: #fff; border-right: 1px solid var(--line-soft);
  padding: 18px 12px;
}
.app__brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: 14px;
  padding: 4px 8px 14px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 14px;
}
.app__mark {
  width: 24px; height: 24px; border-radius: 6px;
  background: var(--ink); display: grid; place-items: center;
}
.app__mark img { width: 76%; }

.app__group {
  font-size: 11px; color: var(--ink-soft);
  text-transform: uppercase; letter-spacing: 0.08em;
  padding: 14px 8px 6px;
}
.app__nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--ink-body);
  cursor: default;
}
.app__nav-item:hover { background: var(--bg-mute); color: var(--ink); }
.app__nav-item.is-active {
  background: var(--bg-alt);
  color: var(--accent);
  font-weight: 500;
}
.app__nav-item.is-active svg { color: var(--accent); }

.app__main { background: #fff; padding: 20px 24px; }
.app__topbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px; flex-wrap: wrap; gap: 10px;
}
.app__crumbs { font-size: 15px; font-weight: 600; }
.app__crumbs .muted { color: var(--ink-mute); font-weight: 400; font-size: 13px; }
.app__topbar-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.chip {
  display: inline-flex; align-items: center;
  height: 26px; padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--bg-mute);
  color: var(--ink-body);
  border: 1px solid transparent;
}
.chip--accent {
  background: var(--accent-soft);
  color: var(--accent);
}

/* Table mock */
.app__table {
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  overflow: hidden;
}
.row {
  display: grid;
  grid-template-columns: 1.4fr 1.4fr 2.4fr 1fr 0.8fr;
  align-items: center;
  padding: 12px 16px;
  font-size: 13px;
  border-bottom: 1px solid var(--line-soft);
}
.row:last-child { border-bottom: 0; }
.row--head {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--ink-mute); font-weight: 500;
  background: var(--bg-alt);
}
.row:hover:not(.row--head) { background: var(--bg-alt); }

.cell-user { display: flex; align-items: center; gap: 10px; font-weight: 500; }
.avatar {
  width: 26px; height: 26px; border-radius: 999px;
  background: #0a0a0a; color: #fff;
  display: grid; place-items: center;
  font-size: 12px; font-weight: 600;
  flex-shrink: 0;
}
.avatar--b { background: #FE2C55; }
.avatar--c { background: #2563eb; }
.avatar--d { background: #16a34a; }
.avatar--e { background: #d97706; }

.mono { font-family: var(--font-mono); font-size: 12px; color: var(--ink-mute); }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--ink-body); }

.tag {
  display: inline-flex; align-items: center;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  background: var(--bg-mute); color: var(--ink-body);
  border: 1px solid var(--line-soft);
}
.tag--ok { background: #dcfce7; color: #166534; border-color: transparent; }
.tag--warn { background: var(--accent-soft); color: var(--accent); border-color: transparent; }

.link { color: var(--accent); font-weight: 500; cursor: pointer; }
.link:hover { text-decoration: underline; }

/* Two smaller panels */
.mockup-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.mockup--sm { margin: 0; }
.mockup--sm .mockup__body.panel { padding: 20px; background: #fff; min-height: 320px; }

.panel__title {
  display: flex; align-items: center; justify-content: space-between;
  font-weight: 600; font-size: 15px;
  margin-bottom: 14px;
}

.tpl {
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 12px;
  background: #fff;
}
.tpl:hover { border-color: var(--line); box-shadow: var(--shadow-sm); }
.tpl__head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px;
}
.tpl__name { font-weight: 500; font-size: 14px; }
.tpl__body {
  font-size: 13px;
  color: var(--ink-body);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tpl__body em { color: var(--accent); font-style: normal; font-weight: 500; }
.tpl__foot {
  margin-top: 10px;
  display: flex; gap: 16px;
  font-size: 12px;
}
.muted { color: var(--ink-mute); }

.creator {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}
.creator:last-child { border-bottom: 0; }
.creator__name {
  display: flex; gap: 8px; align-items: center;
  font-weight: 500; font-size: 14px;
}
.creator__meta { font-size: 12px; color: var(--ink-mute); margin-top: 2px; }

/* ============================ FEATURES ============================ */
.features { padding: 80px 0; background: var(--bg-alt); }
.grid { display: grid; gap: 20px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 28px 26px;
  transition: transform var(--ease) .2s, box-shadow var(--ease) .2s, border-color var(--ease) .2s;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--line);
}
.card__icon {
  width: 38px; height: 38px;
  border-radius: 9px;
  background: var(--ink);
  color: #fff;
  display: grid; place-items: center;
  margin-bottom: 18px;
}
.card h3 {
  margin: 0 0 8px;
  font-size: 17px; font-weight: 600;
  letter-spacing: -0.01em;
}
.card p {
  margin: 0;
  color: var(--ink-body);
  font-size: 14px;
  line-height: 1.65;
}

/* ============================ DOWNLOAD ============================ */
.download {
  padding: 96px 0;
  background: var(--ink);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.download::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 70% 50%, #000 0%, transparent 60%);
  -webkit-mask-image: radial-gradient(circle at 70% 50%, #000 0%, transparent 60%);
  pointer-events: none;
}
.download__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  align-items: center;
  gap: 56px;
}
.download__copy h2 {
  margin: 14px 0 16px;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.025em;
  line-height: 1.15;
  font-weight: 700;
}
.download__copy p {
  margin: 0 0 28px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  max-width: 480px;
  line-height: 1.65;
}
.download__cta {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
.download .btn--primary {
  background: #fff; color: var(--ink); border-color: #fff;
}
.download .btn--primary:hover { background: #f4f4f5; }
.download__meta {
  font-size: 13px; color: rgba(255, 255, 255, 0.55);
  font-family: var(--font-mono);
}

.download__art {
  position: relative;
  height: 280px;
  display: grid; place-items: center;
}
.art__wave {
  position: relative; z-index: 2;
  width: 160px; height: 160px;
  border-radius: 32px;
  background: #000;
  display: grid; place-items: center;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 30px 80px rgba(254, 44, 85, 0.2);
  animation: float 6s var(--ease) infinite;
}
.art__wave img { width: 70%; }
.art__pulse {
  position: absolute; inset: 0; margin: auto;
  width: 360px; height: 360px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(254, 44, 85, 0.18) 0%, transparent 60%);
  animation: pulse 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}

/* ============================ USAGE ============================ */
.usage { padding: 96px 0; background: var(--bg); }

.steps {
  list-style: none;
  padding: 0; margin: 0;
  display: grid; gap: 18px;
  max-width: 880px;
  margin: 0 auto;
}
.step {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 28px;
  align-items: flex-start;
  padding: 28px 32px;
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  transition: border-color var(--ease) .2s, box-shadow var(--ease) .2s;
}
.step:hover { border-color: var(--line); box-shadow: var(--shadow-sm); }

.step__num {
  font-family: var(--font-mono);
  font-size: 28px; font-weight: 600;
  color: var(--ink-soft);
  letter-spacing: -0.02em;
}

.step__body h3 {
  margin: 4px 0 8px;
  font-size: 19px; font-weight: 600;
  letter-spacing: -0.01em;
}
.step__body p {
  margin: 0 0 12px;
  color: var(--ink-body);
  font-size: 15px;
  line-height: 1.65;
}
.step__body code,
.step__body strong { color: var(--ink); }
.step__body code {
  background: var(--bg-mute);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--font-mono); font-size: 0.9em;
}
.step__body strong { font-weight: 600; }
.step__body .warn { color: var(--accent); font-size: 13px; display: block; margin-top: 6px; }

.code {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  background: var(--ink); color: #fff;
  border-radius: 8px;
  font-family: var(--font-mono); font-size: 13px;
  margin-top: 10px;
  position: relative;
}
.code__prompt { color: var(--accent); }
.code__copy {
  margin-left: auto;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 4px;
  font-size: 11px;
  padding: 3px 8px;
  font-family: var(--font-sans);
  transition: background var(--ease) .15s;
}
.code__copy:hover { background: rgba(255, 255, 255, 0.16); }

.hint {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px;
  background: var(--bg-mute);
  border-radius: 6px;
  font-size: 13px;
  color: var(--ink-body);
  margin-top: 8px;
}
.hint svg { color: var(--ink-mute); flex-shrink: 0; }

.step__shortcuts { margin-top: 10px; font-size: 13px; color: var(--ink-body); }
kbd {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--font-mono); font-size: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 5px;
}

.usage__tip {
  margin-top: 36px;
  max-width: 880px; margin-left: auto; margin-right: auto;
  padding: 22px 28px;
  background: linear-gradient(135deg, var(--bg-alt) 0%, #fff 100%);
  border: 1px dashed var(--line);
  border-radius: 12px;
}
.usage__tip h4 {
  margin: 0 0 6px;
  font-size: 14px; font-weight: 600;
}
.usage__tip p {
  margin: 0; color: var(--ink-body);
  font-size: 14px; line-height: 1.65;
}
.usage__tip code {
  background: var(--bg-mute); padding: 1px 6px; border-radius: 4px;
  font-family: var(--font-mono); font-size: 0.92em;
}

/* ============================ FAQ ============================ */
.faq { padding: 80px 0; background: var(--bg-alt); }

.faq__list { max-width: 800px; margin: 0 auto; }
.faq details {
  background: #fff;
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 18px 22px;
  margin-bottom: 10px;
  transition: border-color var(--ease) .15s;
}
.faq details[open] { border-color: var(--line); }
.faq summary {
  cursor: pointer;
  list-style: none;
  font-weight: 500;
  font-size: 15px;
  display: flex; align-items: center; justify-content: space-between;
  outline: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 20px; font-weight: 300;
  color: var(--ink-mute);
  transition: transform var(--ease) .2s;
}
.faq details[open] summary::after { content: "−"; }
.faq details p {
  margin: 12px 0 0;
  color: var(--ink-body);
  font-size: 14px; line-height: 1.7;
}
.faq details code {
  background: var(--bg-mute); padding: 1px 6px;
  border-radius: 4px; font-family: var(--font-mono); font-size: 0.9em;
}

/* ============================ FOOTER ============================ */
.footer {
  padding: 64px 0 32px;
  background: var(--bg);
  border-top: 1px solid var(--line-soft);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 56px;
}
.footer__brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: 15px;
}
.footer__cols {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.footer__cols h5 {
  margin: 0 0 12px;
  font-size: 12px; text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}
.footer__cols a {
  display: block;
  font-size: 14px;
  color: var(--ink-body);
  padding: 3px 0;
}
.footer__cols a:hover { color: var(--ink); }
.footer__bottom {
  grid-column: 1 / -1;
  margin-top: 40px; padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  display: flex; justify-content: space-between;
  font-size: 13px;
  color: var(--ink-mute);
}

/* ============================ RESPONSIVE ============================ */
@media (max-width: 960px) {
  .nav__links { display: none; }
  .grid--3 { grid-template-columns: 1fr 1fr; }
  .download__inner { grid-template-columns: 1fr; }
  .download__art { height: 240px; }
  .mockup-grid { grid-template-columns: 1fr; }
  .app { grid-template-columns: 160px 1fr; }
  .row { grid-template-columns: 1fr 1fr 2fr 0.8fr; }
  .row > div:nth-child(2) { display: none; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .nav__cta .btn--ghost { display: none; }
  .hero { padding: 56px 0 64px; }
  .hero__meta { gap: 18px; padding: 14px 18px; }
  .meta-divider { height: 22px; }
  .meta-num { font-size: 18px; }
  .grid--3 { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1fr; gap: 4px; padding: 22px; }
  .step__num { font-size: 22px; }
  .app { grid-template-columns: 1fr; }
  .app__sider { display: none; }
  .row { grid-template-columns: 1fr 2fr 0.8fr; padding: 10px 12px; font-size: 12px; }
  .row > div:nth-child(2), .row > div:nth-child(4) { display: none; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
  .footer__cols { grid-template-columns: repeat(2, 1fr); }
}