html {
  scroll-behavior: smooth;
}

:root {
  --bg-main: #0f0b1f;
  --bg-deep: #130f2a;
  --bg-soft: #1a1440;
  --card: rgba(32, 23, 69, 0.78);
  --card-strong: rgba(39, 28, 84, 0.96);
  --line: rgba(156, 170, 255, 0.2);
  --text: #eef1ff;
  --muted: #adb3d8;
  --accent: #8dff6a;
  --accent-2: #63e0ff;
  --accent-3: #b18bff;
  --shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
}

body {
  margin: 0;
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 12%, rgba(141, 255, 106, 0.13), transparent 35%),
    radial-gradient(circle at 86% 18%, rgba(99, 224, 255, 0.14), transparent 35%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-main) 45%, #0b0a17 100%);
  min-height: 100vh;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.4;
  background-image:
    radial-gradient(2px 2px at 15% 18%, #dce4ff 60%, transparent 61%),
    radial-gradient(1.5px 1.5px at 35% 40%, #dce4ff 60%, transparent 61%),
    radial-gradient(1.8px 1.8px at 72% 28%, #dce4ff 60%, transparent 61%),
    radial-gradient(1.4px 1.4px at 85% 65%, #dce4ff 60%, transparent 61%),
    radial-gradient(1.6px 1.6px at 52% 78%, #dce4ff 60%, transparent 61%);
}

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

.site-header {
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  z-index: 1050;
}

.site-header.scrolled {
  background: rgba(8, 8, 20, 0.86);
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.navbar {
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 3px rgba(141, 255, 106, 0.2);
  position: relative;
}

.brand-icon::after {
  content: '';
  position: absolute;
  inset: 7px;
  border-radius: 5px;
  background: rgba(9, 10, 23, 0.9);
}

.brand-text {
  font-size: 1.05rem;
}

.navbar-nav .nav-link {
  color: var(--muted);
  font-size: 0.95rem;
  padding: 0.4rem 0.75rem;
  transition: color 0.2s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: #fff;
}

.navbar-toggler {
  border-color: rgba(255, 255, 255, 0.2);
}

.navbar-toggler:focus {
  box-shadow: none;
}

.navbar-toggler-icon {
  filter: invert(1);
}

.offcanvas {
  background: linear-gradient(180deg, #14112d 0%, #0f0d22 100%);
}

.hero-section {
  padding: 140px 0 90px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.82rem;
  color: #0b1226;
  background: linear-gradient(90deg, var(--accent), #c8ff8f);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font-weight: 700;
}

.hero-title {
  margin-top: 1rem;
  margin-bottom: 1rem;
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.14;
  letter-spacing: 0.3px;
}

.hero-title span {
  background: linear-gradient(90deg, #ffffff 0%, var(--accent-2) 65%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.85;
  max-width: 620px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.25rem 0;
}

.hero-tags span {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  color: #c7ceef;
  font-size: 0.82rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.4rem;
}

.btn-aurora {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border: none;
  color: #090b1a;
  font-weight: 700;
  border-radius: 999px;
  padding: 0.72rem 1.3rem;
}

.btn-aurora:hover {
  color: #090b1a;
  transform: translateY(-1px);
}

.btn-outline-aurora {
  border: 1px solid rgba(141, 255, 106, 0.5);
  color: #d6ffe1;
  border-radius: 999px;
  padding: 0.72rem 1.3rem;
}

.btn-outline-aurora:hover {
  border-color: var(--accent);
  color: #fff;
}

.hero-stats {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.hero-stats div {
  min-width: 110px;
}

.hero-stats strong {
  display: block;
  font-size: 1.18rem;
  color: #fff;
}

.hero-stats span {
  font-size: 0.82rem;
  color: var(--muted);
}

.control-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.control-top {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 0.42rem;
}

.control-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.34);
}

.control-top span:nth-child(1) { background: #ff7575; }
.control-top span:nth-child(2) { background: #ffd66f; }
.control-top span:nth-child(3) { background: #71f7a0; }

.control-body {
  padding: 1.4rem;
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1rem;
  align-items: center;
}

.ring-wrap {
  text-align: center;
}

.ring-value {
  width: 120px;
  height: 120px;
  margin: 0 auto 0.6rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.35rem;
  background: conic-gradient(var(--accent-2) 0 70%, rgba(255, 255, 255, 0.08) 70% 100%);
  position: relative;
}

.ring-value::after {
  content: '';
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  background: #191537;
}

.ring-value {
  isolation: isolate;
}

.ring-value::before {
  content: '91%';
  position: absolute;
  z-index: 1;
}

.ring-wrap p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.stream-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.62rem;
}

.stream-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  padding: 0.55rem 0.75rem;
}

.stream-list span {
  color: #dce2ff;
  font-size: 0.9rem;
}

.stream-list em {
  font-style: normal;
  color: var(--accent);
  font-size: 0.82rem;
}

.section-block {
  padding: 88px 0;
}

.alt-block {
  background: linear-gradient(180deg, rgba(29, 22, 58, 0.45), rgba(14, 12, 30, 0.1));
}

.section-head {
  max-width: 720px;
  margin: 0 auto 2.4rem;
}

.section-head h2 {
  font-size: clamp(1.6rem, 2.3vw, 2.3rem);
  margin-bottom: 0.65rem;
}

.section-head h2 span {
  color: var(--accent);
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.feature-card {
  height: 100%;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(46, 34, 96, 0.75), rgba(29, 22, 58, 0.65));
  padding: 1.4rem 1.2rem;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(141, 255, 106, 0.55);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  font-size: 1.15rem;
  background: linear-gradient(135deg, rgba(141, 255, 106, 0.25), rgba(99, 224, 255, 0.25));
  border: 1px solid rgba(141, 255, 106, 0.35);
  margin-bottom: 0.95rem;
}

.feature-card h3 {
  font-size: 1.08rem;
  margin-bottom: 0.55rem;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  font-size: 0.92rem;
}

.media-card,
.news-card,
.review-form-card,
.review-item {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.media-card {
  overflow: hidden;
  height: 100%;
}

.media-thumb {
  height: 170px;
  background:
    radial-gradient(circle at 25% 30%, rgba(177, 139, 255, 0.45), transparent 45%),
    radial-gradient(circle at 80% 35%, rgba(99, 224, 255, 0.35), transparent 50%),
    linear-gradient(145deg, #2f2467, #191538);
  display: grid;
  place-items: center;
}

.play-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  color: #081126;
  font-size: 1.15rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #e8ffb9);
}

.media-body {
  padding: 1rem 1rem 1.2rem;
}

.media-body h3 {
  font-size: 1.06rem;
  margin-bottom: 0.45rem;
}

.media-body p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--muted);
  margin-bottom: 0.8rem;
}

.meta-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.meta-row span {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  color: #d9e0ff;
}

.meta-row em {
  font-style: normal;
}

.news-card {
  padding: 1.1rem 1rem;
  height: 100%;
}

.news-date {
  margin-bottom: 0.55rem;
  color: #bfc7f5;
  font-size: 0.8rem;
}

.news-card h3 {
  font-size: 1rem;
  line-height: 1.55;
  margin-bottom: 0.55rem;
}

.news-card p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

.news-link {
  display: inline-block;
  margin-top: 0.2rem;
  color: var(--accent-2);
  font-size: 0.86rem;
}

.faq-wrap {
  max-width: 920px;
  margin: 0 auto;
}

.accordion-item {
  border: 1px solid var(--line);
  background: var(--card-strong);
  margin-bottom: 0.75rem;
  border-radius: 14px !important;
  overflow: hidden;
}

.accordion-button {
  background: transparent;
  color: #f4f6ff;
  font-weight: 600;
  box-shadow: none;
}

.accordion-button:not(.collapsed) {
  color: #fff;
  background: rgba(255, 255, 255, 0.03);
}

.accordion-button::after {
  filter: invert(1);
}

.accordion-body {
  color: var(--muted);
  line-height: 1.8;
  font-size: 0.92rem;
}

.review-form-card {
  padding: 1.1rem;
  height: 100%;
}

.review-form-card h3 {
  font-size: 1.02rem;
  margin-bottom: 0.85rem;
}

.review-form .form-control {
  margin-bottom: 0.7rem;
  background: rgba(9, 10, 26, 0.55);
  border: 1px solid rgba(167, 182, 255, 0.2);
  color: #fff;
}

.review-form .form-control::placeholder {
  color: #95a0d1;
}

.review-form .form-control:focus {
  box-shadow: none;
  border-color: rgba(141, 255, 106, 0.6);
}

.review-list {
  display: grid;
  gap: 0.8rem;
}

.review-item {
  padding: 0.95rem;
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
}

.avatar {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-3), var(--accent-2));
  color: #0d1023;
}

.review-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.38rem;
}

.review-top strong {
  font-size: 0.95rem;
}

.review-top span {
  font-size: 0.78rem;
  color: #b7c0ee;
}

.review-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.68;
  font-size: 0.9rem;
}

.links-block {
  padding-top: 72px;
}

.links-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  max-width: 900px;
  margin: 0 auto;
}

.links-grid a {
  display: block;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: #dbecff;
  text-align: center;
  padding: 0.75rem 0.7rem;
  transition: all 0.25s ease;
  font-size: 0.92rem;
}

.links-grid a:hover {
  border-color: rgba(99, 224, 255, 0.7);
  color: #fff;
  transform: translateY(-2px);
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: #090813;
  padding: 2.1rem 0;
}

.footer-brand-wrap {
  text-align: center;
}

.footer-brand {
  display: inline-block;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.55rem;
  color: #fff;
}

.footer-brand-wrap p {
  margin: 0;
  color: #98a2d7;
  font-size: 0.9rem;
}

.copyright {
  text-align: center;
  margin-top: 0.9rem;
  margin-bottom: 0;
  font-size: 0.82rem;
  color: #8e98c9;
}

@media (max-width: 991.98px) {
  .hero-section {
    padding-top: 120px;
  }

  .control-body {
    grid-template-columns: 1fr;
  }

  .ring-wrap {
    margin-bottom: 0.5rem;
  }

  .links-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 575.98px) {
  .section-block {
    padding: 70px 0;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-stats {
    gap: 0.8rem;
  }

  .media-thumb {
    height: 150px;
  }

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