/* 敦煌易搭次元 · 静态宣传页 · PC / 移动通用 */
:root {
  --bg: #faf5f7;
  --bg-alt: #f3ecef;
  --ink: #2a2426;
  --muted: rgba(42, 36, 38, 0.62);
  --line: rgba(42, 36, 38, 0.1);
  --accent: #eb89a5;
  --accent-dark: #d46f8d;
  --sand: #c9a227;
  --teal: #1f7a74;
  --card: #ffffff;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 18px 50px rgba(42, 36, 38, 0.08);
  --font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-serif: "Songti SC", "SimSun", "STSong", serif;
  --max: 1120px;
  --space: clamp(1rem, 3vw, 2.25rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
}

.skip {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  width: auto;
  height: auto;
  padding: 0.5rem 1rem;
  background: var(--card);
  border-radius: 8px;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.inner {
  width: min(var(--max), 100% - var(--space) * 2);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 0;
  flex-wrap: wrap;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--sand));
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.15rem;
  margin-left: auto;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--ink);
  border-color: var(--accent);
}

.header-cta {
  display: none;
}

@media (min-width: 880px) {
  .header-cta {
    display: inline-flex;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  box-shadow: 0 10px 28px rgba(235, 137, 165, 0.35);
}

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

.btn-outline {
  border-color: var(--line);
  color: var(--ink);
  background: var(--card);
}

.btn-outline:hover {
  border-color: var(--accent);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
  font-size: 0.88rem;
  padding: 0.45rem 1rem;
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.hero {
  position: relative;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(3rem, 8vw, 5rem);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: -20% -10% auto;
  height: 70%;
  background:
    radial-gradient(ellipse 80% 60% at 70% 0%, rgba(235, 137, 165, 0.22), transparent 55%),
    radial-gradient(ellipse 50% 40% at 10% 30%, rgba(201, 162, 39, 0.12), transparent 50%),
    linear-gradient(180deg, #fff5f8 0%, var(--bg) 100%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
  font-weight: 600;
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 4.5vw, 2.85rem);
  line-height: 1.2;
  font-weight: 700;
  margin: 0 0 1rem;
}

.accent {
  color: var(--accent-dark);
}

.lead {
  margin: 0 0 1.5rem;
  color: var(--muted);
  max-width: 38rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.hero-meta {
  display: grid;
  gap: 0.75rem 1.5rem;
  margin: 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.hero-meta dt {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.2rem;
}

.hero-meta dd {
  margin: 0;
  font-weight: 600;
}

.hero-card {
  border-radius: calc(var(--radius) + 4px);
  padding: 1px;
  background: linear-gradient(145deg, rgba(235, 137, 165, 0.55), rgba(201, 162, 39, 0.35));
  box-shadow: var(--shadow);
}

.hero-card-inner {
  background: var(--card);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 2rem);
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-card-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--muted);
  margin: 0 0 0.5rem;
}

.hero-card-title {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  margin: 0 0 0.5rem;
}

.hero-card-sub {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-card-badge {
  display: inline-block;
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--bg-alt);
  color: var(--ink);
  font-family: ui-monospace, monospace;
  word-break: break-all;
}

.section {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.section-alt {
  background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
}

.section-head {
  max-width: 40rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.5rem;
}

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

.mini-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .mini-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.mini-panel {
  background: var(--card);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  box-shadow: 0 8px 30px rgba(42, 36, 38, 0.04);
}

.mini-panel.accent {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
  background: linear-gradient(160deg, #fff 0%, #fff8fa 100%);
}

.mini-panel h3 {
  font-family: var(--font-serif);
  margin: 0 0 1rem;
  font-size: 1.15rem;
}

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

.steps li {
  margin-bottom: 0.65rem;
}

.steps li::marker {
  color: var(--accent-dark);
  font-weight: 700;
}

.note {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 1rem 0 0;
}

.note code {
  font-size: 0.82em;
  word-break: break-all;
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--muted);
}

.checklist li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(235, 137, 165, 0.25);
}

.features {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}

.feature {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--line);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.feature:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  box-shadow: var(--shadow);
}

.feature-icon {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-dark);
  margin-bottom: 0.5rem;
}

.feature h3 {
  font-family: var(--font-serif);
  font-size: 1.08rem;
  margin: 0 0 0.4rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.company-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.company-name {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  margin: 0 0 1.25rem;
  line-height: 1.35;
}

.company-dl {
  display: grid;
  gap: 0.85rem 1.5rem;
  margin: 0 0 1.25rem;
}

@media (min-width: 640px) {
  .company-dl {
    grid-template-columns: 1fr 1fr;
  }
}

.company-dl div {
  margin: 0;
}

.company-dl dt {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin-bottom: 0.15rem;
}

.company-dl dd {
  margin: 0;
  font-weight: 600;
}

.company-dl code {
  font-size: 0.9em;
  word-break: break-all;
}

.company-scope-label {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.35rem;
}

.company-scope {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.contact-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .contact-grid {
    grid-template-columns: 1.2fr 1fr;
  }
}

.contact-block {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--line);
}

.contact-block h3 {
  font-family: var(--font-serif);
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.contact-block p {
  margin: 0 0 0.5rem;
  color: var(--muted);
}

.contact-block p:last-child {
  margin-bottom: 0;
}

.muted {
  font-size: 0.88rem;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0 2rem;
  background: #fff;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

@media (min-width: 720px) {
  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer-brand {
  font-weight: 600;
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
}

.footer-line {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-copy {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

@media (max-width: 520px) {
  .nav {
    width: 100%;
    order: 3;
    justify-content: flex-start;
    border-top: 1px solid var(--line);
    padding-top: 0.65rem;
    margin-left: 0;
  }

  .header-bar {
    padding-bottom: 0.65rem;
  }
}