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

:root {
  --bg: #000;
  --bg-elevated: #111114;
  --bg-card: rgba(22, 22, 24, 0.72);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #f5f5f7;
  --muted: rgba(235, 235, 245, 0.55);
  --faint: rgba(235, 235, 245, 0.35);
  --accent: #a4d037;
  --accent-soft: #c6ef5a;
  --accent-dim: rgba(164, 208, 55, 0.14);
  --accent-border: rgba(164, 208, 55, 0.35);
  --buy: #f0c674;
  --buy-dim: rgba(240, 198, 116, 0.1);
  --buy-border: rgba(240, 198, 116, 0.35);
  --blue: #0a84ff;
  --radius: 16px;
  --radius-sm: 12px;
  --max: 1180px;
  --shell: 960px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Segoe UI", sans-serif;
  background:
    radial-gradient(1200px 640px at 50% -20%, rgba(164, 208, 55, 0.11), transparent 55%),
    radial-gradient(900px 480px at 92% 8%, rgba(10, 132, 255, 0.06), transparent 50%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

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

.container {
  width: min(var(--max), calc(100% - 2.5rem));
  margin: 0 auto;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  background: rgba(0, 0, 0, 0.74);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 64px;
}

.nav-logo img {
  height: 22px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.3rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.nav-toggle {
  display: none;
  appearance: none;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-toggle:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
}

.nav-toggle[aria-expanded="true"] {
  border-color: var(--accent-border);
  background: var(--accent-dim);
}

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: background 0.15s ease;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.15s ease, top 0.15s ease;
}

.nav-toggle-bars::before {
  top: -5px;
}

.nav-toggle-bars::after {
  top: 5px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  flex-shrink: 0;
  padding: 0.5rem 1.05rem;
  border-radius: 999px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent) !important;
  font-weight: 700;
  font-size: 0.86rem;
}

.nav-cta:hover {
  background: rgba(164, 208, 55, 0.22);
}

.nav-buy,
.nav-buy-intl {
  color: var(--buy) !important;
  font-weight: 600;
}

.nav-buy-intl {
  color: #7eb8ff !important;
}

[data-cutgo-buy-alt] {
  display: none !important;
}

.purchase-price-text {
  font-size: 1.25rem;
  line-height: 1.25;
}

.hero-buy,
.hero-buy-intl {
  border-color: var(--buy-border);
}

#activate,
#download,
#film,
#extension,
#workspace,
#tools,
#faq {
  scroll-margin-top: 80px;
}

/* Hero */
.hero {
  padding: 4rem 0 3rem;
  text-align: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 1.1rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.hero-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

.hero h1 {
  font-size: clamp(2.35rem, 6vw, 3.5rem);
  font-weight: 750;
  letter-spacing: -0.045em;
  line-height: 1.05;
  margin-bottom: 0.85rem;
}

.hero h1 .go {
  color: var(--accent);
}

.hero-lead {
  max-width: 34rem;
  margin: 0 auto 1.5rem;
  font-size: clamp(0.95rem, 2vw, 1.06rem);
  color: var(--muted);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  margin-bottom: 1.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.76rem 1.3rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 650;
  border: 1px solid var(--line);
  transition: transform 0.15s, background 0.15s, filter 0.15s, border-color 0.15s;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  color: #111;
  border-color: transparent;
  box-shadow: 0 10px 28px rgba(164, 208, 55, 0.28);
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.05);
}

.btn-quiet {
  background: transparent;
  color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent-border);
  min-width: 0;
}

.btn-sm {
  padding: 0.48rem 0.9rem;
  font-size: 0.8rem;
  min-width: 0;
}

.platform-badges {
  display: flex;
  justify-content: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.badge {
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.74rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.025);
}

/* Sections */
.sec,
.section {
  padding: 2.75rem 0;
}

.sec-head,
.section-head {
  text-align: center;
  margin-bottom: 1.15rem;
}

.section-kicker {
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 650;
  margin-bottom: 0.4rem;
}

.sec-shell {
  max-width: var(--shell);
  margin: 0 auto;
}

.section-title {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  font-weight: 720;
  letter-spacing: -0.03em;
  margin-bottom: 0.4rem;
}

.section-desc {
  max-width: 36rem;
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Funnel */
.funnel {
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.funnel .block {
  padding: 1.85rem 1.25rem;
  border-top: 1px solid var(--line);
}

.funnel .block:first-child {
  border-top: 0;
}

/* Video placeholders */
.video-main {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: #09090b;
  aspect-ratio: 16 / 9;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.video-main .poster,
.clip-screen .poster {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.video-main .poster {
  background:
    radial-gradient(700px 320px at 20% 15%, rgba(164, 208, 55, 0.18), transparent 55%),
    radial-gradient(500px 280px at 80% 70%, rgba(10, 132, 255, 0.12), transparent 50%),
    linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.72)),
    repeating-linear-gradient(90deg, #121216 0 14px, #0e0e12 14px 28px);
}

.play {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  color: #111;
  display: grid;
  place-items: center;
  box-shadow: 0 14px 40px rgba(164, 208, 55, 0.35), 0 0 0 10px rgba(164, 208, 55, 0.12);
  transition: transform 0.18s;
  z-index: 2;
}

.play:hover {
  transform: scale(1.06);
}

.play svg {
  width: 28px;
  height: 28px;
  margin-left: 3px;
}

.vmeta {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 10px;
  pointer-events: none;
}

.vmeta .t {
  font-weight: 700;
  font-size: 0.95rem;
  text-shadow: 0 2px 12px #000;
}

.vmeta .s {
  font-size: 0.78rem;
  color: rgba(245, 245, 247, 0.72);
  margin-top: 2px;
}

.vtag {
  font-size: 0.7rem;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--accent-border);
  background: rgba(0, 0, 0, 0.55);
  color: var(--accent);
  backdrop-filter: blur(8px);
}

.stage {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: #070708;
  color: var(--muted);
  font-size: 0.88rem;
}

.is-playing .poster {
  display: none;
}

.is-playing .stage {
  display: flex;
}

.bar {
  width: min(70%, 400px);
  height: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.bar i {
  display: block;
  height: 100%;
  width: 34%;
  background: var(--accent);
  animation: cutgo-slide 2s ease-in-out infinite;
}

@keyframes cutgo-slide {
  from {
    transform: translateX(-120%);
  }
  to {
    transform: translateX(320%);
  }
}

.clips-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 0.85rem;
}

.clip-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.clip-tabs button {
  padding: 0.42rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 0.8rem;
  transition: 0.15s;
}

.clip-tabs button.is-on,
.clip-tabs button:hover {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-dim);
}

.clip-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 14px;
}

.clip-screen {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #09090b;
  aspect-ratio: 16 / 9;
}

.clip-screen .poster {
  background:
    radial-gradient(500px 220px at 30% 20%, rgba(10, 132, 255, 0.16), transparent 55%),
    linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.65)),
    #121216;
}

.clip-screen .play {
  width: 56px;
  height: 56px;
  box-shadow: 0 10px 28px rgba(164, 208, 55, 0.3), 0 0 0 8px rgba(164, 208, 55, 0.1);
}

.clip-screen .play svg {
  width: 22px;
  height: 22px;
}

.clip-aside {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.15rem 1.2rem;
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.clip-aside .dur {
  font-size: 0.74rem;
  color: var(--accent);
  font-weight: 650;
}

.clip-aside h3 {
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.clip-aside p {
  color: var(--muted);
  font-size: 0.86rem;
  flex: 1;
}

.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 1.2rem;
}

.feat {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1.05rem;
  background: rgba(255, 255, 255, 0.028);
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
}

.feat:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-2px);
}

.feat-ico {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  margin-bottom: 0.75rem;
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
}

.feat h3 {
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
}

.feat p {
  font-size: 0.82rem;
  color: var(--muted);
}

.home-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.home-step {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1rem;
  background: rgba(0, 0, 0, 0.25);
}

.home-step .n {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 750;
  margin-bottom: 0.65rem;
  border: 1px solid var(--accent-border);
}

.home-step h3 {
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.home-step p {
  font-size: 0.78rem;
  color: var(--muted);
}

/* Download / License */
.download-box,
.download-card,
.activate-box,
.buy-card {
  text-align: center;
  border-radius: 18px;
  padding: 2rem 1.5rem 1.75rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.download-box,
.download-card {
  border-color: var(--accent-border);
  background:
    linear-gradient(180deg, rgba(164, 208, 55, 0.1), rgba(255, 255, 255, 0.02) 42%),
    rgba(12, 14, 10, 0.88);
  box-shadow: 0 0 0 1px rgba(164, 208, 55, 0.08), 0 18px 40px rgba(0, 0, 0, 0.28);
}

.download-version {
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 650;
  margin-bottom: 1.15rem;
}

.download-card .btn-primary,
.download-box .btn-primary {
  min-width: 220px;
  box-shadow: 0 10px 28px rgba(164, 208, 55, 0.32);
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
  align-items: center;
}

.download-hint {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.activate-box,
.buy-card {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.035);
  max-width: none;
  margin: 0;
}

.buy-card > p:first-of-type,
.activate-box > p:first-of-type {
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 32rem;
  margin: 0 auto 1.1rem;
  line-height: 1.55;
}

.activate-code {
  display: block;
  width: fit-content;
  margin: 0 auto 1rem;
  padding: 0.65rem 1.35rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.35);
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
}

.buy-cta,
.activate-buy-row {
  display: block;
  margin: 0 auto;
  width: fit-content;
}

.buy-foot {
  margin-top: 1rem;
  font-size: 0.84rem;
  color: var(--muted);
}

.purchase-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.purchase-row-single {
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
}

.purchase-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.25rem 1.5rem;
  border-radius: 16px;
  border: 1px solid var(--accent-border);
  background: var(--bg-card);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}

.purchase-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.purchase-card-intl {
  border-color: rgba(126, 184, 255, 0.35);
}

.purchase-card-intl:hover {
  border-color: #7eb8ff;
}

.purchase-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.purchase-price {
  font-size: 1.75rem;
  color: var(--accent);
  line-height: 1.1;
}

.purchase-card-intl .purchase-price {
  color: #7eb8ff;
}

.purchase-label {
  font-size: 0.88rem;
  color: var(--muted);
}

.purchase-cta {
  margin-top: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.drain-grid,
.tools-home-grid {
  display: grid;
  gap: 12px;
}

.drain-grid {
  grid-template-columns: 1.2fr 0.8fr;
}

.drain-grid-single {
  grid-template-columns: 1fr;
  max-width: 28rem;
  margin: 0 auto;
}

.tools-home-grid {
  grid-template-columns: 1fr 1fr;
}

.home-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
}

.pill {
  display: inline-block;
  font-size: 0.7rem;
  color: var(--accent);
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
  border-radius: 999px;
  padding: 0.18rem 0.55rem;
  margin-bottom: 0.65rem;
  font-weight: 650;
}

.home-card h3 {
  font-size: 1.02rem;
  margin-bottom: 0.4rem;
}

.home-card p {
  color: var(--muted);
  font-size: 0.86rem;
  margin-bottom: 1rem;
}

/* FAQ */
.faq-list {
  max-width: var(--shell);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.faq-item summary {
  padding: 0.95rem 1.1rem;
  cursor: pointer;
  font-weight: 650;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1rem;
}

.faq-item[open] {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
}

.faq-item[open] summary::after {
  content: "–";
}

.faq-item p {
  padding: 0 1.1rem 1.1rem;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

/* Footer */
.footer {
  margin-top: auto;
  padding: 2.5rem 0 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-links a:hover {
  color: var(--text);
}

.footer-beian {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  text-align: center;
}

.footer-beian-line {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: #888;
}

.footer-beian-line a {
  color: #888;
  text-decoration: none;
}

.footer-beian-line a:hover {
  color: #aaa;
  text-decoration: underline;
}

.footer-beian-line--reserved {
  min-height: calc(12px * 1.6);
}

/* Responsive */
@media (max-width: 900px) {
  .feat-grid,
  .home-steps,
  .drain-grid,
  .tools-home-grid,
  .clip-grid {
    grid-template-columns: 1fr;
  }

  .clips-top {
    justify-content: center;
  }

  .clip-tabs {
    justify-content: center;
    width: 100%;
  }

  .funnel .block {
    padding: 1.4rem 1rem;
  }

  .hero {
    padding: 3rem 0 2.2rem;
  }

  .nav-inner {
    position: relative;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    left: auto;
    z-index: 120;
    min-width: min(320px, calc(100vw - 2rem));
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(10, 10, 12, 0.96);
    backdrop-filter: blur(18px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    display: block;
    padding: 0.75rem 0.9rem;
    border-radius: 10px;
  }

  .nav-links a:hover {
    background: rgba(255, 255, 255, 0.04);
  }

  .nav-links .nav-cta {
    margin-top: 0.35rem;
    text-align: center;
  }
}