:root {
  --bg: #0a0a0c;
  --bg-soft: #141418;
  --bg-card: #1a1a20;
  --text: #f5f2ef;
  --text-muted: #a8a29a;
  --accent: #ff4d6d;
  --accent-2: #ff8a3d;
  --accent-3: #c026d3;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --font-display: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", sans-serif;
  --max: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(255, 77, 109, 0.18), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(255, 138, 61, 0.14), transparent 50%),
    radial-gradient(700px 400px at 50% 100%, rgba(192, 38, 211, 0.1), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  min-height: 100vh;
}

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

a {
  color: #ffb4c0;
  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;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(10, 10, 12, 0.82);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  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: 0.02em;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  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;
  width: 36px;
  height: 36px;
  padding: 0;
  margin: 0;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  cursor: pointer;
}

.menu-toggle svg {
  width: 20px;
  height: 20px;
  display: block;
  pointer-events: none;
}

.hero {
  position: relative;
  min-height: clamp(520px, 88vh, 760px);
  display: grid;
  align-items: end;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.45) saturate(1.05);
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 10, 12, 0.25) 0%, rgba(10, 10, 12, 0.55) 45%, rgba(10, 10, 12, 0.96) 100%),
    linear-gradient(90deg, rgba(10, 10, 12, 0.7) 0%, transparent 55%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 4.5rem 0 3.2rem;
  max-width: 720px;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 1.1;
  margin: 0 0 0.8rem;
  background: linear-gradient(120deg, #fff 10%, #ffb4c0 45%, #ff8a3d 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero h1 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  font-weight: 600;
  line-height: 1.45;
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 30px rgba(255, 77, 109, 0.28);
}

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

.btn-ghost {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.section {
  padding: 4rem 0;
}

.section-head {
  margin-bottom: 1.8rem;
}

.section-head h2 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 400;
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
  max-width: 46em;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.5rem;
  align-items: stretch;
}

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

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

.shot {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.shot:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 77, 109, 0.35);
}

.shot img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top;
  background: #111;
}

.shot.landscape img {
  aspect-ratio: 16 / 10;
}

.shot figcaption {
  padding: 0.9rem 1rem 1.1rem;
}

.shot h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

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

.feature-list {
  display: grid;
  gap: 1rem;
}

.feature-item {
  padding: 1.1rem 1.2rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.feature-item h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

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

.seo-article {
  background: linear-gradient(180deg, rgba(26, 26, 32, 0.7), rgba(20, 20, 24, 0.9));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(1.4rem, 3vw, 2.4rem);
}

.seo-article h2,
.seo-article h3 {
  font-family: var(--font-display);
  font-weight: 400;
}

.seo-article h2 {
  margin-top: 0;
  font-size: 1.9rem;
}

.seo-article h3 {
  margin-top: 1.8rem;
  font-size: 1.35rem;
}

.seo-article p {
  color: #ddd8d2;
  margin: 0.85rem 0;
  text-align: justify;
}

.seo-article ul {
  color: #ddd8d2;
  padding-left: 1.2rem;
}

.seo-article li {
  margin: 0.4rem 0;
}

.page-hero {
  padding: 3.2rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 400;
}

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

.prose {
  padding: 2.5rem 0 4rem;
  max-width: 820px;
}

.prose h2 {
  margin: 2rem 0 0.7rem;
  font-size: 1.35rem;
}

.prose p,
.prose li {
  color: #ddd8d2;
}

.prose ul {
  padding-left: 1.2rem;
}

.error-page {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 3rem 1rem;
}

.error-page h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 6rem);
  margin: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.error-page p {
  color: var(--text-muted);
  margin: 0.8rem 0 1.5rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.35);
  padding: 2.5rem 0 2rem;
  margin-top: 1rem;
}

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

.site-footer h3 {
  margin: 0 0 0.8rem;
  font-size: 1rem;
}

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

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

.site-footer li {
  margin: 0.4rem 0;
}

.copyright {
  margin-top: 1.8rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  color: #7a746c;
  font-size: 0.85rem;
}

.fade-up {
  animation: fadeUp 0.8s ease both;
}

.fade-up-delay {
  animation: fadeUp 1s ease 0.15s both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .menu-toggle {
    display: inline-flex;
  }

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

  .nav {
    display: none;
    position: absolute;
    top: calc(100% + 2px);
    right: 0;
    left: auto;
    width: min(240px, calc(100vw - 2rem));
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem;
    background: rgba(18, 18, 22, 0.98);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--shadow);
    z-index: 120;
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    padding: 0.7rem 0.85rem;
    border-radius: 8px;
  }

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

  .hero {
    min-height: 78vh;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .shot img {
    aspect-ratio: 3 / 4;
  }

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

@media (max-width: 480px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}