/* tlog.click — 糖心Vlog 官方推荐平台 */
:root {
  --bg: #0c0b0f;
  --bg-soft: #16141c;
  --bg-card: #1c1924;
  --line: rgba(255, 214, 224, 0.12);
  --text: #f5eef1;
  --muted: #b9a8b0;
  --accent: #e85a7a;
  --accent-soft: #f0a0b0;
  --accent-deep: #c43d5c;
  --glow: rgba(232, 90, 122, 0.28);
  --radius: 14px;
  --max: 1120px;
  --font-display: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background:
    radial-gradient(980px 520px at 12% -10%, rgba(232, 90, 122, 0.18), transparent 60%),
    radial-gradient(820px 460px at 88% 8%, rgba(180, 90, 140, 0.12), transparent 55%),
    linear-gradient(180deg, #120f16 0%, var(--bg) 40%, #0a090d 100%);
  min-height: 100vh;
}

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

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

a:hover {
  color: #fff;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(12, 11, 15, 0.82);
  border-bottom: 1px solid var(--line);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--line), 0 8px 24px var(--glow);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  cursor: pointer;
}

.nav-toggle-icon {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  position: relative;
  transition: background 0.2s ease;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.2s ease, top 0.2s ease;
}

.nav-toggle-icon::before { top: -6px; }
.nav-toggle-icon::after { top: 6px; }

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

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

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

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-soft);
}

/* Hero */
.hero {
  padding: 3.2rem 0 2.4rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -20% -40% 40%;
  height: 70%;
  background: radial-gradient(circle, var(--glow), transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-block;
  color: var(--accent-soft);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  margin-bottom: 0.8rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.85rem);
  line-height: 1.25;
  margin: 0 0 1rem;
  font-weight: 400;
}

.hero-lead {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 1.5rem;
  max-width: 36em;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.25rem;
  border-radius: 999px;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #fff;
  box-shadow: 0 10px 28px var(--glow);
}

.btn-primary:hover {
  color: #fff;
  opacity: 0.92;
}

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

.hero-visual {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  animation: rise-in 0.9s ease both;
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: top;
}

/* Sections */
section {
  padding: 2.8rem 0;
}

.section-head {
  margin-bottom: 1.6rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.6vw, 1.9rem);
  margin: 0 0 0.55rem;
  font-weight: 400;
}

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

.prose {
  color: var(--muted);
}

.prose p {
  margin: 0 0 1rem;
}

.prose h2,
.prose h3 {
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 400;
}

.prose h2 {
  font-size: 1.55rem;
  margin: 2rem 0 0.8rem;
}

.prose h3 {
  font-size: 1.2rem;
  margin: 1.5rem 0 0.6rem;
}

.prose ul,
.prose ol {
  padding-left: 1.2rem;
  margin: 0 0 1rem;
}

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

/* Grids */
.feature-grid,
.shot-grid,
.cat-grid {
  display: grid;
  gap: 1.1rem;
}

.feature-grid {
  grid-template-columns: repeat(3, 1fr);
}

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

.cat-grid {
  grid-template-columns: repeat(3, 1fr);
}

.card,
.shot-card,
.cat-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent),
    var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.card {
  padding: 1.25rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-family: var(--font-display);
  font-weight: 400;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.shot-card img,
.cat-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top;
  transition: transform 0.45s ease;
}

.shot-card:hover img,
.cat-card:hover img {
  transform: scale(1.04);
}

.shot-card figcaption,
.cat-card figcaption {
  padding: 0.75rem 0.9rem 0.95rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.shot-card strong,
.cat-card strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.2rem;
  font-weight: 500;
}

/* Highlight strip */
.highlight {
  background: var(--bg-soft);
  border-block: 1px solid var(--line);
}

.dual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
  align-items: start;
}

.dual figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.dual figcaption {
  padding: 0.8rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* TOC */
.toc {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  margin: 1.5rem 0 2rem;
}

.toc h2 {
  font-size: 1.1rem;
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 400;
}

.toc ol {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

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

/* Breadcrumb */
.breadcrumb {
  padding: 1rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

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

.breadcrumb span {
  margin: 0 0.35rem;
  opacity: 0.5;
}

/* Legal / page */
.page-hero {
  padding: 2rem 0 1rem;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin: 0.4rem 0 0.7rem;
  font-weight: 400;
}

.page-hero p {
  margin: 0;
  color: var(--muted);
  max-width: 42em;
}

.legal-box {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem 1.8rem;
  margin-bottom: 2.5rem;
}

/* Error pages */
.error-wrap {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 3rem 1rem;
}

.error-wrap h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-weight: 400;
}

.error-wrap p {
  color: var(--muted);
  margin: 0 0 1.4rem;
}

/* Footer */
.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  background: #0a090d;
  padding: 2.2rem 0 1.6rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.site-footer h3 {
  margin: 0 0 0.7rem;
  font-size: 1rem;
  font-family: var(--font-display);
  font-weight: 400;
}

.site-footer p,
.site-footer li {
  color: var(--muted);
  font-size: 0.9rem;
}

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

.site-footer li {
  margin-bottom: 0.4rem;
}

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

/* Motion */
@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.reveal {
  animation: rise-in 0.75s ease both;
}

.reveal-delay-1 { animation-delay: 0.12s; }
.reveal-delay-2 { animation-delay: 0.24s; }
.reveal-delay-3 { animation-delay: 0.36s; }

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* Tablet */
@media (max-width: 960px) {
  .hero-grid,
  .dual,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hero-visual img {
    aspect-ratio: 16 / 11;
  }
}

/* Mobile */
@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-bar {
    position: relative;
    flex-wrap: nowrap;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 0.35rem);
    left: 0;
    right: 0;
    z-index: 80;
    flex-direction: column;
    gap: 0.15rem;
    margin: 0;
    padding: 0.7rem 0.85rem;
    width: auto;
    list-style: none;
    background: rgba(22, 20, 28, 0.98);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  }

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

  .nav-links a {
    display: block;
    padding: 0.55rem 0.35rem;
  }

  .feature-grid,
  .cat-grid,
  .shot-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 2rem;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  section {
    padding: 2rem 0;
  }

  .legal-box {
    padding: 1.15rem 1rem 1.4rem;
  }
}