:root {
  --bg: #0c0c0f;
  --bg-soft: #15151b;
  --bg-card: #1a1a22;
  --text: #f2f2f5;
  --text-muted: #a8a8b3;
  --accent: #ff4d6d;
  --accent-2: #ff8c42;
  --accent-3: #c71585;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 12px;
  --max: 1140px;
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-2);
}

.container {
  width: min(100% - 32px, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 12, 15, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

/* Ads bar - sticky below header */
.ads-bar {
  position: sticky;
  top: 64px;
  z-index: 99;
  background: rgba(18, 18, 24, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  padding: 8px 0 6px;
}

#ads {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 6px 4px;
  background: transparent;
  margin: 0;
  min-height: 0;
}

#ads > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 70px;
  box-sizing: border-box;
}

#ads figure {
  margin: 0;
}

#ads img {
  width: 65px;
  height: 65px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
  transition: transform 180ms ease, box-shadow 180ms ease;
  display: block;
  border: none;
  background: #fff;
}

#ads a {
  display: inline-block;
  text-decoration: none;
  border-radius: 15px;
  color: inherit;
}

#ads img:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.45);
}

#ads figcaption,
#ads .caption {
  height: 15px;
  margin-top: 4px;
  font-size: 11px;
  color: #a8a8b3;
  text-align: center;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
}

.nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
}

.menu-toggle .menu-icon {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  position: relative;
  box-shadow: 0 -6px 0 currentColor, 0 6px 0 currentColor;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 56px 0 48px;
  background:
    radial-gradient(ellipse 80% 60% at 20% 20%, rgba(255, 77, 109, 0.18), transparent),
    radial-gradient(ellipse 70% 50% at 90% 10%, rgba(255, 140, 66, 0.14), transparent),
    var(--bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(255, 77, 109, 0.15);
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 14px;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(1.75rem, 3.5vw, 2.45rem);
  line-height: 1.3;
  background: linear-gradient(90deg, #fff 0%, #ffb4c0 50%, #ff8c42 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin: 0 0 24px;
  max-width: 36em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 77, 109, 0.28);
}

.btn-primary:hover {
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

.btn-ghost:hover {
  border-color: rgba(255, 77, 109, 0.45);
  color: var(--accent);
}

.hero-visual {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 9 / 14;
  object-fit: cover;
  object-position: top;
  max-height: 520px;
}

/* Sections */
.section {
  padding: 56px 0;
}

.section-alt {
  background: var(--bg-soft);
}

.section-head {
  margin-bottom: 28px;
}

.section-head h2 {
  margin: 0 0 10px;
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
  max-width: 48em;
}

/* Feature / category grids */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: rgba(255, 77, 109, 0.35);
  transform: translateY(-2px);
}

.card-media {
  aspect-ratio: 9 / 16;
  overflow: hidden;
  background: #000;
}

.card-media.landscape {
  aspect-ratio: 16 / 10;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.card-body {
  padding: 14px 16px 18px;
}

.card-body h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.card-body p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Content article */
.prose {
  max-width: 820px;
}

.prose h2 {
  margin-top: 2em;
  margin-bottom: 0.7em;
  font-size: 1.45rem;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.prose h3 {
  margin-top: 1.5em;
  margin-bottom: 0.55em;
  font-size: 1.15rem;
  color: #ffe0e6;
}

.prose p {
  margin: 0 0 1em;
  color: #d6d6de;
}

.prose ul,
.prose ol {
  margin: 0 0 1.2em;
  padding-left: 1.35em;
  color: #d6d6de;
}

.prose li {
  margin-bottom: 0.45em;
}

.prose strong {
  color: #fff;
}

.toc {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 24px 0 32px;
}

.toc h2 {
  margin: 0 0 12px;
  font-size: 1.1rem;
  border: none;
  padding: 0;
}

.toc ol {
  margin: 0;
  padding-left: 1.2em;
}

.toc a {
  color: var(--text-muted);
}

.toc a:hover {
  color: var(--accent);
}

.inline-shot {
  margin: 24px 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.inline-shot img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  object-position: top;
}

.inline-shot figcaption {
  padding: 10px 14px;
  font-size: 0.88rem;
  color: var(--text-muted);
  background: var(--bg-card);
}

/* Split feature */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
  margin: 36px 0;
}

.split.reverse .split-text {
  order: 2;
}

.split.reverse .split-media {
  order: 1;
}

.split-media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.split-media img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  object-position: top;
}

.split-text h3 {
  margin-top: 0;
}

/* Page hero for inner pages */
.page-hero {
  padding: 40px 0 24px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 77, 109, 0.08), transparent),
    var(--bg);
}

.page-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.page-hero p {
  margin: 0;
  color: var(--text-muted);
}

.page-content {
  padding: 40px 0 64px;
}

/* Error pages */
.error-wrap {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 16px;
}

.error-wrap h1 {
  font-size: clamp(3rem, 10vw, 5rem);
  margin: 0 0 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.error-wrap p {
  color: var(--text-muted);
  margin: 0 0 24px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: #08080b;
  padding: 40px 0 28px;
  margin-top: 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 28px;
  margin-bottom: 28px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-weight: 700;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.site-footer p,
.site-footer li {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer li {
  margin-bottom: 8px;
}

.site-footer a {
  color: var(--text-muted);
}

.site-footer a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  font-size: 0.82rem;
}

.highlight-box {
  background: linear-gradient(135deg, rgba(255, 77, 109, 0.12), rgba(255, 140, 66, 0.08));
  border: 1px solid rgba(255, 77, 109, 0.25);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin: 24px 0;
}

.highlight-box h3 {
  margin-top: 0;
}

.breadcrumb {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover {
  color: var(--accent);
}

.vlog-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.vlog-strip .card-media {
  aspect-ratio: 9 / 16;
}

/* Mobile */
@media (max-width: 900px) {
  .hero-grid,
  .split,
  .split.reverse,
  .grid-3,
  .grid-2,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .split.reverse .split-text,
  .split.reverse .split-media {
    order: unset;
  }

  .grid-4,
  .vlog-strip {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    left: auto;
    width: min(240px, calc(100vw - 32px));
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px;
    background: rgba(18, 18, 24, 0.98);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
    z-index: 120;
  }

  .nav a {
    padding: 10px 12px;
    border-radius: 8px;
  }

  .nav a:hover,
  .nav a.active {
    background: rgba(255, 255, 255, 0.06);
  }

  .nav.open {
    display: flex;
  }

  .header-inner {
    flex-wrap: nowrap;
  }

  .hero {
    padding: 36px 0 28px;
  }

  .hero-visual img {
    max-height: 380px;
  }

  .section {
    padding: 40px 0;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  .grid-4 {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .card-body {
    padding: 10px 12px 14px;
  }

  .card-body h3 {
    font-size: 0.95rem;
  }
}