:root {
  --bg: #f6f1e8;
  --surface: #fffaf2;
  --surface-strong: #fff;
  --ink: #1f2a22;
  --muted: #5f685f;
  --line: #d9cfbf;
  --accent: #c85c2b;
  --accent-deep: #8f3411;
  --glow: linear-gradient(135deg, rgba(200, 92, 43, 0.16), rgba(242, 181, 107, 0.28));
  --shadow: 0 20px 60px rgba(92, 66, 38, 0.12);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(242, 181, 107, 0.22), transparent 26%),
    linear-gradient(180deg, #f7f2e9 0%, #f3ede2 100%);
}

a {
  color: inherit;
}

.hero,
.section,
.footer,
.ad-strip {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0 8px;
}

.brand {
  font-size: 1.15rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  gap: 20px;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
}

.hero-copy {
  padding: 56px 0 72px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--accent-deep);
  margin: 0 0 10px;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  max-width: 760px;
  font-size: clamp(2.6rem, 6vw, 5.2rem);
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  margin-bottom: 12px;
}

.lead,
.section-heading p,
.tool-card p,
.article-list p,
.feature-grid p,
.ad-card p,
.footer p,
.tool-layout p,
.hint,
label {
  color: var(--muted);
}

.lead {
  max-width: 760px;
  margin: 20px 0 0;
  font-size: 1.08rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid var(--line);
  transition: transform 0.2s ease, background 0.2s ease;
}

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

.button.primary {
  color: #fff7f0;
  background: var(--accent);
  border-color: var(--accent);
}

.button.ghost {
  background: rgba(255, 250, 242, 0.76);
}

.ad-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 32px;
}

.ad-card,
.tool-card,
.article-list article,
.feature-grid > div,
.tool-panel,
.tool-output,
.stat-card,
.related-links,
.adsense-box {
  background: rgba(255, 250, 242, 0.82);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(217, 207, 191, 0.88);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.ad-card {
  padding: 20px;
}

.ad-card span {
  font-weight: 800;
}

.section {
  padding: 42px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 24px;
}

.tool-grid,
.article-list,
.feature-grid,
.stats-grid {
  display: grid;
  gap: 18px;
}

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

.tool-card,
.article-list article,
.feature-grid > div,
.tool-panel,
.tool-output,
.stat-card {
  padding: 22px;
}

.tool-card h3 {
  min-height: 2.2em;
}

.tool-card p {
  min-height: 4.8em;
}

.tool-card a {
  color: var(--accent-deep);
  font-weight: 700;
  text-decoration: none;
}

.content-band {
  position: relative;
}

.content-band::before {
  content: "";
  position: absolute;
  inset: 24px 0 auto 0;
  height: 260px;
  background: var(--glow);
  border-radius: 32px;
  z-index: -1;
}

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

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

.footer {
  padding: 28px 0 54px;
}

.tool-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 60px;
}

.tool-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
  align-items: start;
}

.tool-panel textarea,
.tool-panel input,
.tool-panel select,
.tool-output textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fffdf8;
  color: var(--ink);
  border-radius: 18px;
  padding: 14px 16px;
  font: inherit;
}

.tool-panel textarea,
.tool-output textarea {
  min-height: 280px;
  resize: vertical;
}

.tool-panel input,
.tool-panel select {
  min-height: 48px;
}

.tool-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 12px;
}

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

.stat-card strong {
  display: block;
  font-size: 1.6rem;
  margin-bottom: 6px;
}

.hint {
  margin-top: 14px;
  font-size: 0.95rem;
  line-height: 1.7;
}

.seo-block {
  margin-top: 18px;
  padding: 22px;
  border-radius: 24px;
  background: rgba(255, 250, 242, 0.72);
  border: 1px solid rgba(217, 207, 191, 0.88);
}

.seo-block h2 {
  font-size: 1.4rem;
  margin-bottom: 14px;
}

.seo-block p,
.seo-block li {
  color: var(--muted);
  line-height: 1.8;
}

.seo-block ul {
  margin: 0;
  padding-left: 20px;
}

.adsense-box {
  margin: 20px 0;
  padding: 18px 20px;
}

.adsense-label {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.adsense-box code {
  display: block;
  white-space: pre-wrap;
  word-break: break-word;
  color: #6e351f;
  font-size: 0.92rem;
  line-height: 1.7;
}

.related-links {
  margin-top: 18px;
  padding: 22px;
}

.related-links h2 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.related-links ul {
  margin: 0;
  padding-left: 20px;
}

.related-links li {
  margin-bottom: 8px;
}

.related-links a {
  color: var(--accent-deep);
  text-decoration: none;
  font-weight: 700;
}

@media (max-width: 960px) {
  .tool-grid,
  .article-list,
  .feature-grid,
  .ad-strip,
  .tool-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .hero-copy {
    padding-top: 34px;
  }

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

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