:root {
  --max: 1560px;
  --bg: #d5e4f0;
  --bg-raise: #eef5fb;
  --card: rgba(255, 255, 255, 0.66);
  --ink: #163044;
  --muted: #3e5c72;
  --faint: #6d8798;
  --line: rgba(18, 60, 90, 0.14);
  --accent: #1b6f9c;
  --accent-2: #0f4f74;
  --glow: rgba(27, 111, 156, 0.2);
  --btn-1: #2a86b8;
  --btn-2: #17648f;
  --btn-ink: #fff;
  --hero-glow: rgba(80, 160, 210, 0.45);
  --cap: rgba(14, 32, 48, 0.62);
  --nav: rgba(213, 228, 240, 0.92);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(20, 70, 110, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 70, 110, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  font-family: "Noto Sans SC", Outfit, "Segoe UI", sans-serif;
  font-weight: 400;
  line-height: 1.7;
  font-size: 16px;
  min-height: 100vh;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
::selection { background: var(--glow); }

.wrap { width: min(var(--max), calc(100% - 72px)); margin: 0 auto; }

/* Header / Nav — mlnets style */
.site-header,
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  margin: 0;
  padding: 18px max(24px, calc((100% - var(--max)) / 2));
  background: var(--nav);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
section, h1, h2 { scroll-margin-top: 84px; }

.brand,
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 600;
  letter-spacing: 0.02em;
  font-size: clamp(1.15rem, 2vw, 1.75rem);
  line-height: 1.25;
  color: var(--ink);
}
.brand .logo-mark,
.logo-img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
  background: linear-gradient(180deg, var(--btn-1), var(--btn-2));
}
.logo-img { display: none; }
.logo-img[src]:not([src=""]) { display: block; }
.logo-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.nav-links,
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
  font-size: 14px;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.site-header .nav { gap: 28px; }
.nav-links a:hover,
.nav a:hover { color: var(--ink); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 12px 22px;
  background: linear-gradient(180deg, var(--btn-1), var(--btn-2));
  color: var(--btn-ink);
  letter-spacing: 0.04em;
  font-weight: 500;
  box-shadow: 0 8px 28px var(--glow);
  transition: filter 0.2s ease;
}
.btn:hover { filter: brightness(1.06); color: var(--btn-ink); }
.btn.ghost,
.btn-ghost {
  background: transparent;
  color: var(--ink);
  box-shadow: none;
  border: 1px solid var(--line);
}
.btn.ghost:hover,
.btn-ghost:hover { color: var(--ink); filter: none; background: rgba(255, 255, 255, 0.45); }
.btn.small { padding: 8px 16px; font-size: 14px; box-shadow: none; white-space: nowrap; flex-shrink: 0; }

/* Hero */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: center;
  padding: 40px 0 64px;
  overflow: visible;
}
.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  width: 520px;
  height: 520px;
  right: -80px;
  top: -120px;
  background: radial-gradient(circle, var(--hero-glow), transparent 68%);
  pointer-events: none;
}
.kicker {
  margin: 0 0 18px;
  color: var(--accent-2);
  font-family: Outfit, "Noto Sans SC", sans-serif;
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 0;
  font-size: clamp(40px, 4.2vw, 72px);
  line-height: 1.12;
  font-weight: 600;
  letter-spacing: -0.03em;
}
.en {
  margin: 14px 0 0;
  font-family: Outfit, sans-serif;
  font-weight: 400;
  color: var(--muted);
  font-size: 18px;
}
.lede { margin: 22px 0 0; max-width: 42em; color: var(--muted); font-size: 17px; }

.hero-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.hero-points li {
  display: grid;
  gap: 2px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.35);
}
.hero-points strong { font-size: 15px; font-weight: 650; letter-spacing: 0.02em; }
.hero-points span { color: var(--muted); font-size: 14px; line-height: 1.55; }

.channels { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.channels span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 14px;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.4);
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.frame {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.18);
  background: var(--bg-raise);
}
.hero-visual {
  aspect-ratio: 16 / 10;
  min-height: 280px;
  display: grid;
  place-items: center;
  padding: 28px;
  background:
    radial-gradient(400px 220px at 70% 20%, rgba(42, 134, 184, 0.35), transparent 70%),
    linear-gradient(160deg, #0f4f74 0%, #1b6f9c 45%, #d5e4f0 100%);
}
.hero-visual-card {
  width: min(100%, 340px);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 20px 50px rgba(15, 39, 68, 0.25);
  padding: 16px;
  color: var(--ink);
}
.hero-visual-card .row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 12px;
}
.hero-visual-card .dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--btn-1), var(--btn-2));
  flex-shrink: 0;
}
.hero-visual-card .bubble {
  flex: 1;
  padding: 10px 12px;
  border-radius: 12px;
  background: #eef5fb;
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted);
}
.hero-visual-card .bubble.me {
  background: linear-gradient(180deg, #2a86b8, #17648f);
  color: #fff;
  margin-left: 40px;
}
.frame figcaption {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--cap);
  border: 1px solid var(--line);
  color: #d5dde8;
  font-size: 12px;
  letter-spacing: 0.06em;
}

/* Sections */
.section-block { padding: 72px 0; border-top: 1px solid var(--line); }
.sec-label {
  margin: 0 0 10px;
  color: var(--faint);
  font-family: Outfit, sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.section-block h2,
.section h2 {
  margin: 0 0 28px;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.audience,
.pain,
.caps,
.steps {
  display: grid;
  gap: 14px;
}
.audience { grid-template-columns: repeat(4, 1fr); }
.pain { grid-template-columns: repeat(4, 1fr); list-style: none; margin: 0; padding: 0; }
.caps { grid-template-columns: 1fr 1fr; }
.steps { grid-template-columns: repeat(3, 1fr); }

.audience article,
.pain li,
.cap,
.step,
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.audience article { padding: 22px 20px 20px; min-height: 168px; }
.pain li { padding: 22px 22px 20px; }
.cap { padding: 18px 18px 16px; }
.step { padding: 22px 20px; }
.audience h3,
.step h3,
.cap h3 { margin: 10px 0 8px; font-size: 18px; font-weight: 600; }
.cap h3 { margin-top: 0; font-size: 16px; }
.audience p,
.pain p,
.cap p,
.step p,
.close p { margin: 0; color: var(--muted); }
.pain strong { display: block; margin-bottom: 6px; font-weight: 600; color: var(--ink); }
.idx {
  font-family: Outfit, sans-serif;
  color: var(--accent-2);
  font-size: 13px;
  letter-spacing: 0.14em;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: start;
}

.close {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
  padding: 36px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background:
    radial-gradient(600px 240px at 0% 0%, var(--hero-glow), transparent 60%),
    var(--bg-raise);
}
.close h2 { margin-bottom: 12px; }

/* Inner pages */
.page-main,
.section {
  width: min(var(--max), calc(100% - 72px));
  margin: 0 auto;
  padding: 40px 0 72px;
}
.page-main h1,
.section > h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 600;
  letter-spacing: -0.02em;
}
.section-desc { margin: 0 0 28px; color: var(--muted); max-width: 42em; }
.crumb { color: var(--faint); font-size: 14px; margin: 0 0 20px; }
.crumb a:hover { color: var(--accent); }

.post-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.post-list li {
  padding: 18px 20px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.post-list li:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(22, 48, 68, 0.08);
}
.post-list a { font-weight: 600; font-size: 1.05rem; }
.post-list time { display: block; margin-top: 6px; color: var(--faint); font-size: 13px; font-family: Outfit, sans-serif; }
.post-list p { margin: 8px 0 0; color: var(--muted); font-size: 0.95rem; }

.article-body {
  max-width: 48em;
  color: var(--ink);
  line-height: 1.85;
}
.article-body img { border-radius: 12px; margin: 1rem 0; }
.article-meta { color: var(--faint); font-size: 14px; margin-bottom: 1.5rem; }

.product-grid,
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.product-card,
.image-card {
  display: block;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--card);
  overflow: hidden;
  transition: transform 0.2s ease;
}
.product-card:hover,
.image-card:hover { transform: translateY(-3px); }
.product-thumb,
.image-thumb {
  display: block;
  aspect-ratio: 16 / 10;
  background: var(--bg-raise);
  overflow: hidden;
}
.product-thumb img,
.image-thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-card strong,
.image-caption { display: block; padding: 12px 14px 4px; font-weight: 600; }
.product-card em { display: block; padding: 0 14px 14px; color: var(--muted); font-style: normal; font-size: 14px; }

.section-more { margin-top: 20px; }
.section-more a {
  color: var(--accent-2);
  font-weight: 500;
  border-bottom: 1px solid transparent;
}
.section-more a:hover { border-bottom-color: var(--accent); }

/* Footer */
.site-footer {
  padding: 28px 0 48px;
  color: var(--faint);
  font-size: 13px;
  letter-spacing: 0.04em;
  border-top: 1px solid var(--line);
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.site-footer a:hover { color: var(--ink); }
.beian { margin-top: 8px; }
.beian a { margin-left: 10px; }
.footer-contact { text-align: right; line-height: 1.9; }

@media (max-width: 1100px) {
  .hero, .split, .close, .audience, .steps, .caps { grid-template-columns: 1fr; }
  .pain { grid-template-columns: 1fr 1fr; }
  .hero-points { grid-template-columns: 1fr; }
}
@media (max-width: 980px) {
  .nav-links a:not(.btn),
  .site-header .nav a:not(.btn) { display: none; }
  .site-header .nav .btn { display: inline-flex; }
}
@media (max-width: 640px) {
  .wrap,
  .page-main,
  .section { width: min(var(--max), calc(100% - 32px)); }
  .site-header,
  .nav { padding-left: 16px; padding-right: 16px; }
  .pain, .audience { grid-template-columns: 1fr; }
  .close { padding: 22px; }
  .footer-contact { text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}