:root {
  --brand: #e87a3a;
  --brand-dark: #c45f28;
  --brand-soft: #fff4ec;
  --ink: #1a1a1a;
  --muted: #5c5c5c;
  --line: #e8e0d8;
  --bg: #faf8f5;
  --card: #ffffff;
  --radius: 12px;
  --shadow: 0 8px 28px rgba(26, 26, 26, 0.08);
  --max: 1120px;
  --font: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --display: "ZCOOL XiaoWei", "Noto Serif SC", serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--brand-dark);
  text-decoration: none;
}

a:hover {
  color: var(--brand);
  text-decoration: underline;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
}

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

.logo:hover {
  text-decoration: none;
  color: var(--brand-dark);
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px 20px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 0;
}

.nav a:hover,
.nav a.active {
  color: var(--brand);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 10px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  padding: 56px 0 40px;
  background:
    radial-gradient(ellipse 80% 60% at 10% 0%, rgba(232, 122, 58, 0.18), transparent 55%),
    radial-gradient(ellipse 70% 50% at 90% 20%, rgba(196, 95, 40, 0.1), transparent 50%),
    linear-gradient(180deg, #fff8f2 0%, var(--bg) 100%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  color: var(--brand-dark);
  background: var(--brand-soft);
  border: 1px solid #f0d5c0;
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.85rem;
  margin-bottom: 14px;
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  line-height: 1.25;
  margin: 0 0 16px;
  letter-spacing: 0.02em;
}

.hero-lead {
  color: var(--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;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 6px 18px rgba(232, 122, 58, 0.35);
}

.btn-primary:hover {
  background: var(--brand-dark);
  color: #fff;
}

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

.btn-ghost:hover {
  color: var(--brand-dark);
  border-color: #f0c8a8;
}

.hero-visual {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  background: #111;
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 9 / 16;
  max-height: 520px;
  object-fit: cover;
  object-position: top;
}

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

.section-alt {
  background: #fff;
  border-block: 1px solid var(--line);
}

.section-head {
  margin-bottom: 28px;
  max-width: 46em;
}

.section-head h2 {
  font-family: var(--display);
  font-size: clamp(1.45rem, 2.5vw, 1.9rem);
  margin: 0 0 10px;
  line-height: 1.3;
}

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

.prose {
  max-width: 48em;
}

.prose h2,
.prose h3 {
  font-family: var(--display);
  line-height: 1.35;
  margin-top: 1.6em;
}

.prose h2 {
  font-size: 1.45rem;
}

.prose h3 {
  font-size: 1.2rem;
}

.prose p {
  margin: 0 0 1em;
  color: #2b2b2b;
}

.prose ul,
.prose ol {
  padding-left: 1.25em;
  margin: 0 0 1.2em;
}

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

.prose strong {
  color: var(--ink);
}

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

.feature-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(26, 26, 26, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.feature-card img {
  width: 100%;
  aspect-ratio: 9 / 14;
  object-fit: cover;
  object-position: top;
  background: #1a1a1a;
}

.feature-card .body {
  padding: 16px 18px 20px;
}

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

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

.shot-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.shot-item {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #111;
}

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

.shot-item figcaption {
  background: var(--card);
  padding: 10px 12px;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
}

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

.split-media {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: #111;
}

.split-media img {
  width: 100%;
  aspect-ratio: 9 / 16;
  max-height: 560px;
  object-fit: cover;
  object-position: top;
  margin-inline: auto;
}

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

.step {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.step h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.faq details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 18px;
  margin-bottom: 10px;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq details[open] summary {
  color: var(--brand-dark);
  margin-bottom: 8px;
}

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

.cta-band {
  background: linear-gradient(135deg, #e87a3a 0%, #c45f28 100%);
  color: #fff;
  border-radius: 16px;
  padding: 36px 28px;
  text-align: center;
  box-shadow: 0 12px 32px rgba(196, 95, 40, 0.28);
}

.cta-band h2 {
  font-family: var(--display);
  margin: 0 0 10px;
  font-size: 1.6rem;
}

.cta-band p {
  margin: 0 0 20px;
  opacity: 0.95;
}

.cta-band .btn-ghost {
  background: #fff;
  border-color: transparent;
  color: var(--brand-dark);
}

.breadcrumb {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 18px;
}

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

.page-hero {
  padding: 36px 0 8px;
}

.page-hero h1 {
  font-family: var(--display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin: 0 0 10px;
}

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

.legal {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px 36px;
  margin: 24px 0 56px;
}

.related {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.related a {
  background: var(--brand-soft);
  color: var(--brand-dark);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  text-decoration: none;
}

.related a:hover {
  background: #ffe6d4;
}

/* Error pages */
.error-page {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 48px 16px;
}

.error-page .code {
  font-family: var(--display);
  font-size: clamp(4rem, 12vw, 6rem);
  color: var(--brand);
  line-height: 1;
  margin: 0;
}

.error-page h1 {
  margin: 8px 0 12px;
  font-size: 1.5rem;
}

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

/* Footer */
.site-footer {
  background: #1f1a17;
  color: #d8d0c8;
  padding: 40px 0 24px;
  margin-top: 24px;
}

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

.site-footer h3 {
  color: #fff;
  font-size: 1rem;
  margin: 0 0 12px;
}

.site-footer p,
.site-footer li {
  font-size: 0.9rem;
  line-height: 1.7;
}

.site-footer a {
  color: #e8ddd3;
}

.site-footer a:hover {
  color: #ffb380;
}

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

.site-footer li {
  margin-bottom: 6px;
}

.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 18px;
  font-size: 0.85rem;
  color: #9a9088;
  text-align: center;
}

/* Animations */
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-copy,
.hero-visual {
  animation: rise 0.7s ease both;
}

.hero-visual {
  animation-delay: 0.12s;
}

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

/* Mobile */
@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 64px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 12px 16px 18px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    padding: 12px 8px;
    border-bottom: 1px solid var(--line);
  }

  .hero-grid,
  .split,
  .split.reverse,
  .feature-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .split.reverse .split-media {
    order: 0;
  }

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

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

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

  .hero-visual img,
  .split-media img {
    max-height: 420px;
  }

  .section {
    padding: 40px 0;
  }
}

@media (max-width: 560px) {
  .steps {
    grid-template-columns: 1fr;
  }

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

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

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

/* Sticky ads bar below header */
.site-ads {
  position: sticky;
  top: 64px;
  z-index: 90;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  padding: 8px 0 6px;
  box-shadow: 0 4px 14px rgba(26, 26, 26, 0.06);
}

.ads-row,
#ads {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 6px 4px;
  background: transparent;
  margin: 0;
  width: min(100% - 16px, var(--max));
  margin-inline: auto;
}

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

.ads-item figure,
#ads figure {
  margin: 0;
}

#ads img,
.ads-item img {
  width: 65px;
  height: 65px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 6px 18px rgba(24, 24, 24, 0.12);
  transition: transform 180ms ease, box-shadow 180ms ease;
  display: block;
  border: none;
  background: linear-gradient(135deg, #fff, #fff);
}

#ads a,
.ads-item a {
  display: inline-block;
  text-decoration: none;
  border-radius: 15px;
}

#ads img:hover,
.ads-item img:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 10px 24px rgba(24, 24, 24, 0.18);
}

#ads figcaption,
#ads .caption,
.ads-item .caption {
  height: 15px;
  font-size: 11px;
  color: #666;
  text-align: center;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 4px;
}

@media (max-width: 900px) {
  .site-ads {
    top: 64px;
  }
}