:root {
  --bg-start: #4318ff;
  --bg-end: #00a7ff;
  --panel: rgba(12, 6, 32, 0.55);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text-main: #f7f4ff;
  --text-muted: #c6c2ff;
  --btn-gradient-start: #823bff;
  --btn-gradient-end: #55b0ff;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", "Poppins", "Segoe UI", Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.12), transparent 45%),
      linear-gradient(130deg, var(--bg-start), var(--bg-end));
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  line-height: 1.5;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 15% 50%, rgba(255, 255, 255, 0.08), transparent 40%),
      radial-gradient(circle at 75% 20%, rgba(0, 255, 255, 0.15), transparent 35%),
      radial-gradient(circle at 85% 70%, rgba(255, 0, 208, 0.2), transparent 40%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.8;
}

.hero {
  position: relative;
  flex: 1 0 auto;
  width: 100%;
  margin: 0 auto;
  min-height: calc(100vh - 140px);
  padding: clamp(100px, 12vw, 150px) clamp(16px, 6vw, 48px) clamp(80px, 10vw, 120px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 1;
}

.hero > section {
  width: 100%;
  position: relative;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero::before {
  background: #6318d5;
  filter: blur(40px);
  opacity: 0.9;
}

.hero::after {
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 0);
  background-size: 120px 120px;
  opacity: 0.5;
}

.hero-inner {
  max-width: 760px;
  position: relative;
  z-index: 2;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: #f4ecff;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.hero-tag .tag-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.05));
  color: #fff;
  font-size: 0.8rem;
}

.hero-tag.is-visible {
  opacity: 1;
  transform: translateY(0);
}

h1 {
  margin: 32px 0 16px;
  font-size: clamp(2.75rem, 6vw, 4.8rem);
  line-height: 1.1;
}

.hero-subtitle {
  margin: 0 auto 36px;
  max-width: 640px;
  font-size: 1.12rem;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 32px;
  border-radius: 16px;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid transparent;
  text-decoration: none;
  color: var(--text-main);
  transition: transform 0.2s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  min-width: 220px;
}

.btn-icon {
  font-size: 0.9rem;
}

.btn-primary {
  background: linear-gradient(140deg, var(--btn-gradient-start), var(--btn-gradient-end));
  box-shadow: 0 15px 35px rgba(61, 42, 255, 0.5);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.04);
}

.btn:hover {
  transform: translateY(-4px);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: clamp(24px, 6vw, 80px);
  margin-bottom: 70px;
  flex-wrap: wrap;
}

.stat-value {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  display: block;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.4px;
}

.scroll-indicator {
  display: flex;
  justify-content: center;
}

.mouse {
  width: 34px;
  height: 58px;
  border-radius: 20px;
  border: 2px solid rgba(255, 255, 255, 0.6);
  display: inline-flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12px;
  opacity: 0.8;
}

.mouse .wheel {
  width: 6px;
  height: 12px;
  border-radius: 3px;
  background: #fff;
  position: relative;
}

.floating-badges {
  position: absolute;
  top: 50%;
  transform: translateY(calc(-50% + var(--y-offset, 0px)));
  transition: transform 0.6s ease;
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: 3;
}

.floating-badges-left {
  left: 50px;
}

.floating-badges-right {
  right: 50px;
  align-items: flex-end;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 12px 20px;
  min-width: 120px;
  border-radius: 18px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: 0 20px 40px rgba(7, 4, 29, 0.45);
  animation: floatBadge 4.5s ease-in-out infinite;
  animation-delay: var(--float-delay, 0s);
  backdrop-filter: blur(20px);
}

.badge-text {
  font-weight: 600;
  color: #faf6ff;
  font-size: 0.95rem;
  letter-spacing: 0.4px;
}

.badge-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  color: #fff;
  font-size: 0.8rem;
}

.badge-icon.file {
  border-radius: 10px;
  background: linear-gradient(145deg, #ff75f7, #a857ff);
}

.badge-icon.file::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  top: 6px;
  right: 6px;
  border-radius: 3px 0 3px 0;
  background: rgba(255, 255, 255, 0.35);
}

.badge-icon.file::before {
  content: "";
  position: absolute;
  width: 14px;
  height: 2px;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.7);
}

.badge-icon.mp4 {
  background: linear-gradient(145deg, #d86eff, #6f7cff);
}

.badge-icon.mov {
  background: linear-gradient(145deg, #ff92e1, #ff5f9a);
}

.badge-icon.mkv {
  background: linear-gradient(145deg, #0081ff, #5c64ff);
}

.badge-icon.feature {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.05));
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 1rem;
}

.badge-icon.feature.ai::after {
  content: "✚";
}

.badge-icon.feature.uhd::after {
  content: "⚙";
}

.badge-icon.feature.bolt::after {
  content: "⚡";
}

@keyframes floatBadge {
  0% {
      transform: translateY(0);
  }
  50% {
      transform: translateY(-12px);
  }
  100% {
      transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .hero {
      max-width: 100%;
      flex-direction: column;
  }

  .floating-badges {
      position: static;
      transform: none;
      flex-direction: row;
      flex-wrap: wrap;
      justify-content: center;
      margin-bottom: 24px;
      display: none;
  }

  .floating-badges-right {
      align-items: center;
  }
}

@media (max-width: 640px) {
  h1 {
      font-size: 2.4rem;
  }

  .hero-subtitle {
      font-size: 1rem;
  }

  .btn {
      width: 100%;
      min-width: 0;
  }

  .badge {
      width: 48%;
      min-width: 0;
      justify-content: center;
  }

  .hero-stats {
      gap: 24px;
  }
}

.desc {
  position: relative;
  width: 100%;
  background: #04030a;
  color: #f6f4ff;
  padding: 120px 0 80px 0;
  text-align: center;
}

.desc-inner {
  max-width: 1200px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.desc-inner p{
  font-size: 18px;
  color: #cccc;
}
.desc.is-visible .desc-inner {
  opacity: 1;
  transform: translateY(0);
}

.desc h2 {
  margin: 0 0 40px;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 600;
}

.desc-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(18px, 3vw, 30px);
}

.desc-card {
  background: rgba(14, 0, 38, 0.15);
  border-radius: 28px;
  padding: clamp(24px, 3vw, 32px);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  text-align: center;
  color: #e9e4ff;
}

.desc-icon {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  margin-bottom: 16px;
  position: relative;
}

.desc-icon::before,
.desc-icon::after {
  content: "";
  position: absolute;
}

.desc-icon--stack::before {
  width: 20px;
  height: 14px;
  border: 2px solid #fff;
  border-radius: 6px;
}

.desc-icon--stack::after {
  width: 16px;
  height: 2px;
  background: #fff;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
}

.desc-icon--refresh::before {
  width: 22px;
  height: 22px;
  border: 2px solid #fff;
  border-radius: 50%;
  border-left-color: transparent;
  border-bottom-color: transparent;
}

.desc-icon--refresh::after {
  width: 10px;
  height: 10px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
  right: 6px;
  top: 10px;
  transform: rotate(45deg);
}

.desc-icon--lock::before {
  width: 16px;
  height: 12px;
  border: 2px solid #fff;
  border-radius: 3px;
  bottom: 10px;
}

.desc-icon--lock::after {
  width: 10px;
  height: 10px;
  border: 2px solid #fff;
  border-radius: 50%;
  top: 8px;
}

.desc-icon--globe::before {
  width: 22px;
  height: 22px;
  border: 2px solid #fff;
  border-radius: 50%;
}

.desc-icon--globe::after {
  width: 2px;
  height: 22px;
  background: #fff;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: -6px 0 0 0 rgba(255, 255, 255, 0.6), 6px 0 0 0 rgba(255, 255, 255, 0.6);
}

.desc-card-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.desc-value {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.desc-card--years .desc-value,
.desc-card--interest .desc-value {
  font-size: 2.2rem;
}

.desc-label {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
}

.desc-copy {
  margin: 0;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

@media (max-width: 640px) {
  .desc {
      padding: 70px 18px 30px;
  }

  .desc h2 {
      font-size: 2.2rem;
  }
}

/* Section: cover */
.cover {
  position: relative;
  width: 100%;
  background: #04030a;
  padding: clamp(80px, 12vw, 70px) clamp(20px, 10vw, 140px) clamp(100px, 12vw, 60px);
  color: #f5f2ff;
}

.cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #04030a;
  opacity: 0.7;
  pointer-events: none;
}

.cover-inner {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
}

.cover h2 {
  margin: 0 0 40px;
  text-align: center;
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.cover-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: clamp(20px, 3vw, 36px);
}

.cover-card {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: clamp(22px, 4vw, 30px);
  border-radius: 32px;
  background: rgba(9, 8, 20, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.06);
  text-decoration: none;
  color: inherit;
  box-shadow: 0 25px 40px rgba(3, 2, 8, 0.9);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
  overflow: hidden;
}

.cover-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(246, 94, 94, 0.35), rgba(102, 82, 237, 0.4));
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.cover-card:hover,
.cover-card:focus-visible {
  transform: translateY(-8px);
  box-shadow: 0 30px 55px rgba(6, 4, 16, 0.9);
  border-color: rgba(255, 255, 255, 0.18);
}

.cover-card:hover::after,
.cover-card:focus-visible::after {
  opacity: 1;
}

.cover-card:focus-visible {
  outline: none;
}

.cover-card-media {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.cover-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(1.05);
  transition: transform 0.4s ease;
}

.cover-card:hover .cover-card-media img,
.cover-card:focus-visible .cover-card-media img {
  transform: scale(1.03);
}

.cover-card-body h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.cover-card-body p {
  margin: 0;
  color: #bcb9d5;
  line-height: 1.65;
  font-size: 0.98rem;
}

.cover-targets {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 0;
  pointer-events: none;
}

.cover-targets > div {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  top: var(--target-offset, 40px);
  left: 50%;
  transform: translateX(-50%);
}

@media (max-width: 1024px) {
  .cover {
      padding: 80px 40px 30px;
  }

  .cover h2 {
      margin-bottom: 32px;
  }
}

@media (max-width: 640px) {
  .cover {
      padding: 70px 18px 30px;
  }

  .cover-grid {
      grid-template-columns: 1fr;
  }
}

/* Section: why */
.why {
  position: relative;
  width: 100%;
  background: #04030a;
  color: #f6f4ff;
  padding: clamp(70px, 12vw, 60px) clamp(20px, 10vw, 140px) clamp(90px, 12vw, 50px);
}

.why-inner {
  max-width: 1320px;
  margin: 0 auto;
  text-align: center;
}

.why h2 {
  margin: 0 0 50px;
  font-size: clamp(2rem, 4.6vw, 3.2rem);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: #fff;
}

.why-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(18px, 3vw, 40px);
}

.why-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  text-align: left;
  color: #d8d4f0;
}
.why-item .why-copy {
  width: 234px;
}

.why-icon {
  width: 23px;
  height: 23px;
  border-radius: 50%;
  background: linear-gradient(145deg, #875cff, #b795ff);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.why-icon::before {
  content: "✔";
  font-size: 0.7rem;
}

.why-copy h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
  font-weight: 600;
  color: #fff;
}

.why-copy p {
  margin: 0;
  line-height: 1.6;
  font-size: 0.96rem;
  color: #bfbcd6;
}

@media (max-width: 768px) {
  .why-list {
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
}

@media (max-width: 640px) {
  .why {
      padding: 60px 18px 30px;
  }

  .why-list {
      grid-template-columns: 1fr;
  }
}

/* Section: video */
.video {
  position: relative;
  width: 100%;
  background: #04030a;
  color: #f4f2ff;
  padding: clamp(90px, 12vw, 70px) clamp(20px, 11vw, 150px) clamp(110px, 11vw, 60px);
  overflow: hidden;
}

.video-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.video h2 {
  margin: 0 0 60px;
  text-align: center;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.video-body {
  display: flex;
  gap: clamp(30px, 5vw, 80px);
  align-items: center;
}

.video-topics {
  flex: 1 1 55%;
  display: flex;
  flex-direction: column;
  gap: clamp(16px, 2vw, 20px);
}

.topic-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 15px;
  border-radius: 24px;
  text-decoration: none;
  color: #fff;
  font-weight: 600;
  box-shadow: 0 18px 35px rgba(5, 4, 11, 0.9);
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.topic-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.28);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.topic-card:hover,
.topic-card:focus-visible {
  transform: translateX(6px);
  box-shadow: 0 25px 45px rgba(5, 4, 11, 0.9);
}

.topic-card:hover::after,
.topic-card:focus-visible::after {
  opacity: 0.5;
}

.topic-card:focus-visible {
  outline: none;
}

.topic-details {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topic-details h3 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 600;
}

.topic-link {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.95);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.02em;
}

.topic-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.15);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.topic-icon::before,
.topic-icon::after {
  content: "";
  position: absolute;
  display: block;
}

.topic-icon.icon-guide::before {
  width: 22px;
  height: 22px;
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: 6px;
}

.topic-icon.icon-guide::after {
  width: 2px;
  height: 18px;
  background: rgba(255, 255, 255, 0.9);
  top: 13px;
}

.topic-icon.icon-convert::before {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  border: 2px solid rgba(255, 255, 255, 0.9);
  top: 10px;
  left: 10px;
  box-shadow: 16px 0 0 0 rgba(255, 255, 255, 0.8), 0 16px 0 0 rgba(255, 255, 255, 0.6), 16px 16px 0 0 rgba(255, 255, 255, 0.5);
}

.topic-icon.icon-edit::before,
.topic-icon.icon-edit::after {
  width: 30px;
  height: 2px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 2px;
}

.topic-icon.icon-edit::before {
  transform: rotate(25deg);
}

.topic-icon.icon-edit::after {
  transform: rotate(-25deg);
}

.topic-icon.icon-ai::before {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.85);
  border-radius: 4px;
  transform: rotate(45deg);
}

.topic-icon.icon-ai::after {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  top: 14px;
  left: 14px;
  box-shadow: 8px -8px 0 0 rgba(255, 255, 255, 0.9), -8px -8px 0 0 rgba(255, 255, 255, 0.9), 8px 8px 0 0 rgba(255, 255, 255, 0.9), -8px 8px 0 0 rgba(255, 255, 255, 0.9);
}

.topic-icon.icon-fix::before {
  width: 10px;
  height: 22px;
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: 8px 8px 4px 4px;
  top: 12px;
  left: 15px;
}

.topic-icon.icon-fix::after {
  width: 18px;
  height: 4px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 2px;
  left: 14px;
  top: 26px;
}

.topic-card--usage {
  background: linear-gradient(120deg, #ad68ff, #ff4fce);
}

.topic-card--convert {
  background: linear-gradient(120deg, #2edbcf, #298cf8);
}

.topic-card--edit {
  background: linear-gradient(120deg, #30d37c, #18b35d);
}

.topic-card--ai {
  background: linear-gradient(120deg, #9e6cff, #60d8ff);
}

.topic-card--fix {
  background: linear-gradient(120deg, #ffb12a, #ff7432);
}

.video-showcase {
  flex: 1 1 45%;
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-panel {
  width: min(360px, 100%);
  padding: 48px 36px;
  border-radius: 36px;
  background: radial-gradient(circle at 20% 20%, rgba(139, 95, 255, 0.25), rgba(9, 7, 20, 0.95));
  box-shadow: 0 40px 60px rgba(3, 1, 7, 0.85);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.video-panel-icon {
  width: 86px;
  height: 86px;
  border-radius: 24px;
  margin: 0 auto 22px;
  background: linear-gradient(140deg, #c173ff, #ff62e6);
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-panel-icon .triangle {
  width: 0;
  height: 0;
  border-left: 18px solid #fff;
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  margin-left: 6px;
}

.video-panel-text {
  color: #f7f4ff;
}

.panel-label {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.panel-sub {
  margin: 6px 0 0;
  color: #bab5d4;
}

.video-chip {
  position: absolute;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  box-shadow: 0 15px 30px rgba(4, 2, 10, 0.8);
  cursor: default;
}

.video-chip--guide {
  top: 25%;
  right: 15%;
  background: #c274ff;
}

.video-chip--play {
  top: 35%;
  right: 5%;
  background: #00c3ff;
}

.video-chip--convert {
  top: 50%;
  right: 14%;
  background: #00d18d;
}

.video-chip--edit {
  top: 58%;
  right: 4%;
  background: #8e59ff;
}

.video-chip--ai {
  bottom: 15%;
  right: 20%;
  background: #ff9a1f;
}

.topic-anchors {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 0;
  pointer-events: none;
}

.topic-anchors > div {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  top: var(--anchor-offset, 0);
}

@media (max-width: 1024px) {
  .video-body {
      flex-direction: column;
  }

  .video-showcase {
      width: 100%;
      min-height: 280px;
  }

  .video-chip {
      position: static;
      display: inline-flex;
      margin: 8px;
  }

  .video-showcase {
      flex-direction: column;
      gap: 16px;
  }
}

@media (max-width: 640px) {
  .video {
      padding: 70px 18px 30px;
  }
  .video .video-chip {
      display: none;
  }
  .topic-card {
      flex-direction: column;
      align-items: flex-start;
      gap: 12px;
  }

  .topic-link {
      font-size: 0.9rem;
  }
}

.tool {
  position: relative;
  width: 100%;
  background: #04030a;
  color: #f7f3ff;
  padding: clamp(100px, 13vw, 60px) clamp(20px, 11vw, 160px) clamp(120px, 12vw, 60px);
}

.tool-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.tool h2 {
  margin: 0 0 18px;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 600;
}

.tool-subtitle {
  margin: 0 auto 60px;
  max-width: 800px;
  font-size: 1.06rem;
  color: #b8b4d8;
  line-height: 1.6;
}

.tool-card {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: clamp(24px, 4vw, 60px);
  padding: clamp(32px, 4vw, 50px);
  border-radius: 40px;
  background: rgba(12, 10, 22, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 45px 60px rgba(2, 1, 7, 0.9);
}

.tool-content {
  flex: 1 1 420px;
  text-align: left;
}

.tool-content h3 {
  margin: 0 0 18px;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.tool-description {
  margin: 0 0 26px;
  color: #c5c2dd;
  line-height: 1.7;
}

.tool-feature-list {
  list-style: none;
  margin: 0 0 34px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px 32px;
  color: #d8d5f1;
}

.tool-feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.98rem;
}

.feature-icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.feature-icon::before,
.feature-icon::after {
  content: "";
  position: absolute;
}

.feature-icon--bolt::before {
  width: 2px;
  height: 16px;
  background: #fff;
  transform: rotate(-25deg);
}

.feature-icon--bolt::after {
  width: 2px;
  height: 16px;
  background: #fff;
  transform: rotate(25deg);
}

.feature-icon--screen::before {
  width: 16px;
  height: 12px;
  border: 2px solid #fff;
  border-radius: 4px;
}

.feature-icon--screen::after {
  width: 10px;
  height: 2px;
  background: #fff;
  bottom: 6px;
}

.feature-icon--gear::before {
  width: 14px;
  height: 14px;
  border: 2px solid #fff;
  border-radius: 50%;
}

.feature-icon--gear::after {
  width: 18px;
  height: 3px;
  background: #fff;
  transform: rotate(90deg);
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 28px;
  border-radius: 999px;
  background: linear-gradient(120deg, #a45bff, #3a81ff);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 24px 45px rgba(30, 9, 66, 0.55);
}

.tool-visual {
  flex: 0 0 280px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-visual-card {
  width: 230px;
  padding: 40px 20px;
  border-radius: 30px;
  background: linear-gradient(160deg, #352b5c, #141021);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05), 0 30px 40px rgba(4, 2, 8, 0.8);
  text-align: center;
}

.tool-visual-card p {
  margin: 12px 0 0;
  color: #d5d1f0;
}

.tool-visual-icon {
  width: 84px;
  height: 84px;
  border-radius: 24px;
  margin: 0 auto;
  background: linear-gradient(140deg, #c475ff, #5f8bff);
  position: relative;
}

.tool-visual-icon::before {
  content: "";
  position: absolute;
  inset: 24px 20px;
  border: 3px solid #fff;
  border-radius: 12px;
}

.tool-visual-icon::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 4px;
  background: #fff;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 3px;
}

.tool-tag {
  position: absolute;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 600;
  color: #fff;
  box-shadow: 0 15px 30px rgba(3, 2, 8, 0.8);
}

.tool-tag--ai {
  top: 10%;
  right: 10%;
  background: #f058ff;
}

.tool-tag--fast {
  bottom: 15%;
  left: 5%;
  background: #4f9bff;
}

@media (max-width: 900px) {
  .tool-card {
      flex-direction: column;
      align-items: center;
      text-align: center;
  }

  .tool-content {
      text-align: center;
  }

  .tool-feature-list {
      justify-content: center;
  }
}

@media (max-width: 640px) {
  .tool {
      padding: 30px 18px 30px;
  }

  .tool-card {
      padding: 28px;
  }

  .tool-visual-card {
      width: 200px;
  }
}

/* Section: trusted */
.trusted {
  position: relative;
  background: #6318d5;
  color: #fdfbff;
  padding: clamp(80px, 14vw, 180px) clamp(20px, 10vw, 150px);
}

.trusted-inner {
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
}

.trusted h2 {
  margin: 0 0 40px;
  font-size: clamp(2.3rem, 5vw, 3.4rem);
  font-weight: 600;
}

.trusted-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: clamp(18px, 3vw, 30px);
}

.trusted-card {
  background: rgba(9, 0, 31, 0.25);
  border-radius: 28px;
  padding: clamp(24px, 3vw, 32px);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.trusted-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.18);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  position: relative;
}

.trusted-icon::before,
.trusted-icon::after {
  content: "";
  position: absolute;
}

.trusted-icon--stack::before {
  width: 20px;
  height: 14px;
  border: 2px solid #fff;
  border-radius: 6px;
}

.trusted-icon--stack::after {
  width: 16px;
  height: 2px;
  background: #fff;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
}

.trusted-icon--refresh::before {
  width: 22px;
  height: 22px;
  border: 2px solid #fff;
  border-radius: 50%;
  border-left-color: transparent;
  border-bottom-color: transparent;
}

.trusted-icon--refresh::after {
  width: 10px;
  height: 10px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
  top: 10px;
  right: 8px;
  transform: rotate(45deg);
}

.trusted-icon--lock::before {
  width: 16px;
  height: 12px;
  border: 2px solid #fff;
  border-radius: 4px;
  bottom: 10px;
}

.trusted-icon--lock::after {
  width: 12px;
  height: 12px;
  border: 2px solid #fff;
  border-radius: 50%;
  top: 8px;
}

.trusted-icon--globe::before {
  width: 22px;
  height: 22px;
  border: 2px solid #fff;
  border-radius: 50%;
}

.trusted-icon--globe::after {
  width: 2px;
  height: 22px;
  background: #fff;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: -6px 0 0 0 rgba(255, 255, 255, 0.6), 6px 0 0 0 rgba(255, 255, 255, 0.6);
}

.trusted-value {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.trusted-card:nth-child(1) .trusted-value,
.trusted-card:nth-child(4) .trusted-value {
  font-size: 2.2rem;
}

.trusted-label {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.9);
}

.trusted-copy {
  margin: 8px auto 0;
  font-size: 0.96rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

@media (max-width: 640px) {
  .trusted {
      padding: 70px 18px 90px;
  }
}

/* Section: evaluate */
.evaluate {
  background: #04030a;
  color: #f7f4ff;
  padding: 112px 0;
}

.evaluate-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.evaluate-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 30px;
}

.evaluate h2 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3.3rem);
  font-weight: 600;
}

.evaluate-nav {
  display: flex;
  gap: 10px;
}

.evaluate-button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  cursor: pointer;
  color: #fff;
  position: relative;
}

.evaluate-button::before {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-top: 2px solid currentColor;
  border-left: 2px solid currentColor;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(135deg);
}

.evaluate-button--prev::before {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.evaluate-swiper {
  margin-bottom: 24px;
  background-color: #04030a;
  z-index:0;
}
.swiper-slide {
  background-color: #04030a;
}
.evaluate-swiper .swiper-wrapper::before {
  background-color: #04030a;
}
.evaluate-card {
  height: 256px;
  background: rgba(13, 10, 22, 0.9);
  border-radius: 28px;
  padding: clamp(30px, 5vw, 50px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 35px 60px rgba(2, 1, 7, 0.8);
  font-size: 1.05rem;
  line-height: 1.7;
  position: relative;
}

.evaluate-quote {
  position: absolute;
  font-size: 4rem;
  color: rgba(168, 142, 255, 0.45);
  top: 18px;
  left: 26px;
  line-height: 1;
}

.evaluate-card p {
  margin: 0 0 12px;
}

.evaluate-card .evaluate-author {
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 18px;
}

.evaluate-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(10px, 3vw, 30px);
  color: rgba(255, 255, 255, 0.75);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.evaluate-logos span {
  opacity: 0.7;
}

@media (max-width: 768px) {
  .evaluate-header {
      flex-direction: column;
      align-items: flex-start;
  }

  .evaluate-nav {
      align-self: flex-end;
  }
}

@media (max-width: 640px) {
  .evaluate {
      padding: 70px 18px 30px;
  }
}

/* Section: recommended slider */
.recommended {
  background: #04030a;
  color: #f7f4ff;
  padding: clamp(80px, 12vw, 70px) clamp(20px, 9vw, 140px) clamp(100px, 12vw, 60px);
}

.recommended-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.recommended-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 30px;
}

.recommended h2 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3.3rem);
  font-weight: 600;
}

.recommended-nav {
  display: flex;
  gap: 12px;
}

.recommended-button {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: #fff;
  cursor: pointer;
  position: relative;
}

.recommended-button::before {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-top: 2px solid currentColor;
  border-left: 2px solid currentColor;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(135deg);
}

.recommended-button--prev::before {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.recommended-swiper {
  padding-bottom: 16px;
  background: #04030a;
  z-index: 0;
}

.guide-card {
  background: #0b0717;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 35px 60px rgba(4, 2, 10, 0.75);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.guide-media {
  position: relative;
  width: 100%;
  padding-top: 60%;
  overflow: hidden;
  background: #0f0b20;
}

.guide-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.guide-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.65);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.guide-tag--highlight {
  background: rgba(255, 255, 255, 0.8);
  color: #1c1030;
}

.guide-body {
  padding: 22px 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.guide-category {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.guide-body h3 {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.4;
}

.recommended-link {
  margin-top: 36px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #d8d2ff;
  text-decoration: none;
  font-weight: 600;
}

.recommended-link:hover {
  color: #fff;
}

.recommended .swiper-slide {
  height: auto;
}

@media (max-width: 768px) {
  .recommended {
      padding: 30px 20px;
      text-align: center;
  }
  .recommended-header {
      flex-direction: column;
      align-items: flex-start;
  }

  .recommended-nav {
      align-self: anchor-center;
  }
}