:root {
  --brand: #0a6cff;
  --brand-dark: #0047b3;
  --brand-light: #4d9bff;
  --cyan: #22c8ff;
  --ink: #0b1526;
  --ink-2: #44546a;
  --ink-3: #7b8aa3;
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --bg-dark: #050b18;
  --line: #e6ebf2;
  --line-dark: rgba(255, 255, 255, 0.10);
  --danger: #d64545;
  --ok: #178f5f;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 50px rgba(10, 35, 80, 0.10);
  --shadow-lg: 0 30px 80px rgba(10, 35, 80, 0.16);
  --grad: linear-gradient(120deg, #0a6cff 0%, #22c8ff 100%);
  --grad-dark: linear-gradient(160deg, #071022 0%, #0b2350 60%, #0a3a7d 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "Segoe UI",
    "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.container.narrow { max-width: 760px; margin: 0 auto; }

a { color: var(--brand); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--brand-dark); }

/* ------------------------------------------------------------------ */
/* Header / Navigation                                                 */
/* ------------------------------------------------------------------ */

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid rgba(230, 235, 242, 0.9);
}

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px; padding: 10px 0; gap: 12px; position: relative;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); flex-shrink: 0; }
.brand img { width: 28px; height: 28px; border-radius: 8px; }
.brand-name { color: var(--ink); font-size: 1.06rem; font-weight: 700; letter-spacing: -0.01em; white-space: nowrap; }

.nav-toggle {
  display: none; margin-left: auto;
  background: none; border: 1px solid var(--line); border-radius: 10px;
  font-size: 1.15rem; line-height: 1; color: var(--ink);
  padding: 7px 12px; cursor: pointer; font-family: inherit;
}

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a { color: var(--ink-2); font-size: 0.92rem; font-weight: 500; white-space: nowrap; }
.main-nav a:hover, .main-nav a.active { color: var(--brand); }

.nav-item { position: relative; display: flex; align-items: center; }
.nav-item > .nav-link { padding: 8px 12px; border-radius: 10px; display: inline-flex; align-items: center; gap: 4px; }
.nav-item > .nav-link:hover { background: rgba(10, 108, 255, 0.06); }
.nav-item > .nav-link.active { color: var(--brand); background: rgba(10, 108, 255, 0.08); }

.nav-caret {
  border: 0; background: none; cursor: pointer; font-size: 0.62rem; color: var(--ink-3);
  padding: 4px 2px; line-height: 1; font-family: inherit;
}
.nav-item:hover .nav-caret, .nav-item.open .nav-caret { color: var(--brand); }

.dropdown {
  position: absolute; top: calc(100% + 10px); left: 0; min-width: 224px;
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow); padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s;
}
.nav-item:hover > .dropdown, .nav-item.open > .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a {
  display: block; padding: 9px 12px; border-radius: 9px;
  color: var(--ink-2); font-size: 0.9rem;
}
.dropdown a:hover { background: var(--bg-soft); color: var(--brand); }
.dropdown a.active { color: var(--brand); background: rgba(10, 108, 255, 0.08); }

@media (max-width: 1080px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none; position: absolute; top: 100%; left: 16px; right: 16px;
    background: #fff; border: 1px solid var(--line); border-radius: 16px;
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 10px; box-shadow: var(--shadow-lg); max-height: 78vh; overflow: auto;
  }
  .main-nav.open { display: flex; }
  .main-nav > a, .nav-item { display: block; }
  .nav-item { width: 100%; flex-wrap: wrap; }
  .nav-item > .nav-link { padding: 11px 14px; width: calc(100% - 34px); }
  .nav-caret { width: 30px; height: 38px; font-size: 0.7rem; margin-left: auto; }
  .dropdown {
    position: static; min-width: 0; width: 100%; opacity: 1; visibility: visible;
    transform: none; box-shadow: none; border: 0; border-left: 2px solid var(--line);
    border-radius: 0; margin: 2px 0 6px 16px; padding: 2px 0 2px 8px;
    display: none;
  }
  .nav-item.open > .dropdown { display: block; }
  .nav-item:hover > .dropdown { display: none; }
  .nav-item.open:hover > .dropdown { display: block; }
  .dropdown a { padding: 8px 10px; font-size: 0.88rem; }
  .main-nav > a { padding: 11px 14px; border-radius: 10px; }
  .main-nav > a:hover { background: var(--bg-soft); }
}

/* ------------------------------------------------------------------ */
/* Buttons                                                             */
/* ------------------------------------------------------------------ */

.btn {
  display: inline-block; padding: 12px 26px; border-radius: 12px;
  font-weight: 600; font-size: 0.95rem; border: 1px solid transparent;
  cursor: pointer; font-family: inherit; text-align: center;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 28px rgba(10, 108, 255, 0.28); }
.btn-primary:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 14px 34px rgba(10, 108, 255, 0.34); }
.btn-ghost { background: transparent; color: var(--brand); border-color: rgba(10, 108, 255, 0.45); }
.btn-ghost:hover { background: rgba(10, 108, 255, 0.07); }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: #eef4ff; color: var(--brand-dark); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.5); }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
.btn-danger { background: #fff; color: var(--danger); border-color: rgba(214, 69, 69, 0.5); }
.btn-danger:hover { background: #fdf0ee; }
.btn-block { width: 100%; }
.btn-sm { padding: 8px 15px; font-size: 0.85rem; border-radius: 9px; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ------------------------------------------------------------------ */
/* Hero (home, dark)                                                   */
/* ------------------------------------------------------------------ */

.hero {
  position: relative; overflow: hidden; color: #fff;
  background: var(--bg-dark);
  padding: 108px 0 116px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000 30%, transparent 75%);
}
.hero::after {
  content: ""; position: absolute; width: 820px; height: 820px; right: -260px; top: -420px;
  background: radial-gradient(circle, rgba(34, 200, 255, 0.30) 0%, rgba(10, 108, 255, 0.12) 45%, transparent 70%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.8rem);
  font-weight: 700; line-height: 1.12; letter-spacing: -0.02em;
}
.hero-eyebrow {
  display: inline-block; font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.16em; color: #9fd0ff; margin-bottom: 20px;
  text-transform: uppercase;
}
.hero-sub { max-width: 660px; margin: 20px 0 32px; color: rgba(235, 244, 255, 0.82); font-size: 1.08rem; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-euler {
  position: absolute; right: 7%; top: 42%; transform: translateY(-50%);
  font-family: Georgia, "Times New Roman", serif; font-style: italic;
  font-size: clamp(1.6rem, 4.5vw, 4rem);
  color: rgba(255, 255, 255, 0.07);
  pointer-events: none; user-select: none; white-space: nowrap;
}
.hero-euler sup { font-size: 0.6em; }

.hero-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 18px; margin-top: 56px; padding-top: 34px;
  border-top: 1px solid var(--line-dark);
}
.hero-stat b { display: block; font-size: 1.6rem; font-weight: 700; letter-spacing: -0.02em; }
.hero-stat span { font-size: 0.86rem; color: rgba(235, 244, 255, 0.62); }

/* Page hero (sub pages, compact dark) */
.page-hero {
  position: relative; overflow: hidden; color: #fff;
  background: var(--grad-dark); padding: 72px 0 76px;
}
.page-hero::after {
  content: ""; position: absolute; width: 640px; height: 640px; right: -220px; top: -320px;
  background: radial-gradient(circle, rgba(34, 200, 255, 0.22) 0%, transparent 68%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); font-weight: 700; line-height: 1.18; letter-spacing: -0.02em; }
.page-hero-sub { max-width: 720px; margin: 16px 0 0; color: rgba(235, 244, 255, 0.8); font-size: 1rem; }
.page-hero .hero-actions { margin-top: 28px; }
.page-hero .hero-eyebrow { margin-bottom: 14px; }
.page-hero .hero-stats { margin-top: 44px; }

/* ------------------------------------------------------------------ */
/* Sections & cards                                                    */
/* ------------------------------------------------------------------ */

.section { padding: 72px 0; }
.section-alt { background: var(--bg-soft); }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-dark .section-title { color: #fff; border-left-color: var(--cyan); }
.section-dark .section-desc { color: rgba(235, 244, 255, 0.7); }

.section-title {
  font-size: clamp(1.4rem, 2.4vw, 1.8rem); color: var(--ink);
  font-weight: 700; letter-spacing: -0.01em; margin-bottom: 10px;
}
.section-head.center { text-align: center; }
.section-head.center .section-title { margin-bottom: 12px; }
.section-desc { color: var(--ink-2); margin-bottom: 8px; max-width: 760px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 30px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card .icon {
  width: 46px; height: 46px; display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem; color: var(--brand); border-radius: 13px;
  background: linear-gradient(135deg, rgba(10, 108, 255, 0.12), rgba(34, 200, 255, 0.12));
  margin-bottom: 16px;
}
.card h3 { font-size: 1.05rem; color: var(--ink); margin-bottom: 8px; }
.card p { font-size: 0.93rem; color: var(--ink-2); }

.card-link { display: block; color: var(--ink); }
.card-link:hover { color: var(--ink); }
.card-link .more { display: inline-block; margin-top: 14px; font-size: 0.9rem; font-weight: 600; color: var(--brand); }

/* Feature rows (Apple style) */
.feature {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
  padding: 72px 0;
}
.feature + .feature { border-top: 1px solid var(--line); }
.feature.reverse .feature-copy { order: 2; }
.feature.reverse .feature-visual { order: 1; }
.feature-tag {
  display: inline-block; font-size: 0.76rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--brand); margin-bottom: 14px;
}
.feature-copy h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); line-height: 1.2; letter-spacing: -0.015em; margin-bottom: 14px; }
.feature-copy p { color: var(--ink-2); margin-bottom: 20px; }
.feature-list { list-style: none; margin: 0 0 24px; display: grid; gap: 10px; }
.feature-list li { position: relative; padding-left: 26px; color: var(--ink-2); font-size: 0.95rem; }
.feature-list li::before {
  content: ""; position: absolute; left: 0; top: 0.48em; width: 14px; height: 14px;
  border-radius: 50%; background: var(--grad); opacity: 0.9;
}
.feature-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.feature-visual {
  position: relative; border-radius: 24px; min-height: 340px;
  background: linear-gradient(150deg, var(--v1, #0a6cff), var(--v2, #22c8ff));
  overflow: hidden; box-shadow: var(--shadow-lg);
  display: flex; align-items: center; justify-content: center;
}
.feature-visual::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.10) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.5;
}
.feature-visual .visual-glyph {
  position: relative; font-size: 5.2rem; color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 14px 40px rgba(0, 0, 0, 0.22);
}
.visual-chip {
  position: absolute; padding: 9px 16px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.92); color: var(--ink);
  font-size: 0.82rem; font-weight: 600; box-shadow: 0 10px 26px rgba(3, 20, 45, 0.22);
  backdrop-filter: blur(6px);
}
.visual-chip.chip-a { top: 26px; left: 26px; }
.visual-chip.chip-b { bottom: 26px; right: 26px; }
.visual-chip.chip-c { bottom: 26px; left: 26px; }

/* Product grid */
.product-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px; margin-top: 34px;
}
.product-card {
  display: flex; flex-direction: column; gap: 12px;
  background: #fff; border: 1px solid var(--line); border-radius: 20px;
  padding: 28px 26px; color: var(--ink);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(10, 108, 255, 0.35); color: var(--ink); }
.product-icon {
  width: 52px; height: 52px; border-radius: 15px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: #fff;
  background: linear-gradient(140deg, var(--v1, #0a6cff), var(--v2, #22c8ff));
  box-shadow: 0 10px 24px rgba(10, 108, 255, 0.25);
}
.product-card h3 { font-size: 1.1rem; letter-spacing: -0.01em; }
.product-card p { font-size: 0.92rem; color: var(--ink-2); flex: 1; }
.product-card .product-link { font-size: 0.9rem; font-weight: 600; color: var(--brand); }
.product-card .product-meta { font-size: 0.78rem; color: var(--ink-3); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 34px; counter-reset: step; }
.step {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 30px 26px 26px;
}
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; top: -16px; left: 24px;
  font-size: 0.9rem; font-weight: 700; color: #fff;
  background: var(--grad); border-radius: 9px; padding: 5px 12px;
  box-shadow: 0 8px 20px rgba(10, 108, 255, 0.3);
}
.step h3 { font-size: 1rem; margin: 6px 0 8px; }
.step p { font-size: 0.9rem; color: var(--ink-2); }

/* Tech pills */
.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.pill {
  display: inline-block; padding: 7px 15px; border-radius: 999px;
  background: rgba(10, 108, 255, 0.08); color: var(--brand-dark);
  font-size: 0.84rem; font-weight: 600;
}
.section-dark .pill { background: rgba(255, 255, 255, 0.1); color: #dceaff; }

/* CTA band */
.cta-band {
  position: relative; overflow: hidden; border-radius: 26px;
  background: var(--grad-dark); color: #fff;
  padding: 56px 48px; display: flex; align-items: center; justify-content: space-between;
  gap: 28px; flex-wrap: wrap; box-shadow: var(--shadow-lg);
}
.cta-band::after {
  content: ""; position: absolute; width: 420px; height: 420px; right: -120px; top: -220px;
  background: radial-gradient(circle, rgba(34, 200, 255, 0.3), transparent 70%);
}
.cta-band h2 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); letter-spacing: -0.01em; position: relative; z-index: 1; }
.cta-band p { color: rgba(235, 244, 255, 0.78); margin-top: 8px; position: relative; z-index: 1; }
.cta-band .hero-actions { position: relative; z-index: 1; }

/* ------------------------------------------------------------------ */
/* Forms                                                               */
/* ------------------------------------------------------------------ */

.form-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 32px; margin-top: 30px; box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: 7px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px; border: 1px solid #d8e1ec; border-radius: 11px;
  font-size: 0.93rem; font-family: inherit; background: #fbfdff; color: var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px rgba(10, 108, 255, 0.12);
  background: #fff;
}
.form-hint { font-size: 0.82rem; color: var(--ink-3); margin-top: 5px; }
.form-tip { margin-top: 14px; font-size: 0.88rem; text-align: center; }

/* Result / alerts */
.alert { padding: 13px 17px; border-radius: 11px; font-size: 0.92rem; margin-top: 16px; display: none; }
.alert.show { display: block; }
.alert-ok { background: #e9f7ef; color: var(--ok); border: 1px solid #b8e6c8; }
.alert-err { background: #fdf0ee; color: var(--danger); border: 1px solid #f2c4be; }

.badge { display: inline-block; padding: 3px 13px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; }
.badge-pending { background: #fef3dc; color: #9a6700; }
.badge-approved { background: #e9f7ef; color: var(--ok); }
.badge-denied { background: #fdf0ee; color: var(--danger); }

/* Admin table */
.toolbar { display: flex; justify-content: space-between; align-items: center; margin: 24px 0 14px; flex-wrap: wrap; gap: 10px; }
.table-wrap { overflow-x: auto; }
table.admin {
  width: 100%; border-collapse: collapse; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; min-width: 720px;
}
table.admin th, table.admin td { padding: 12px 15px; text-align: left; font-size: 0.9rem; border-bottom: 1px solid var(--line); }
table.admin th { background: var(--bg-soft); color: var(--ink); font-weight: 600; white-space: nowrap; }
table.admin tr:hover td { background: #f7fbff; }
table.admin .actions { white-space: nowrap; }

/* ------------------------------------------------------------------ */
/* Footer                                                              */
/* ------------------------------------------------------------------ */

.site-footer { background: var(--bg-dark); color: rgba(214, 230, 247, 0.75); padding: 48px 0 32px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; font-size: 0.86rem; }
.site-footer a { color: rgba(169, 198, 227, 0.9); }
.site-footer a:hover { color: #fff; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 600; }
.footer-brand img { width: 24px; height: 24px; border-radius: 7px; }
.footer-links { display: inline-flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.footer-links .sep { opacity: 0.4; }

.mono { font-family: Consolas, "JetBrains Mono", monospace; letter-spacing: 0.04em; }

/* ------------------------------------------------------------------ */
/* Blog                                                                */
/* ------------------------------------------------------------------ */

.breadcrumb { font-size: 0.85rem; color: var(--ink-3); margin-bottom: 16px; }
.breadcrumb a { color: var(--ink-3); }
.breadcrumb a:hover { color: var(--brand); }

.post-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; margin-top: 30px; }
.post-card {
  display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 26px; transition: transform 0.18s ease, box-shadow 0.18s ease; color: var(--ink);
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); color: var(--ink); }
.post-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.post-date { font-size: 0.8rem; color: var(--ink-3); }
.post-title { font-size: 1.1rem; color: var(--ink); margin-bottom: 8px; letter-spacing: -0.01em; }
.post-excerpt { font-size: 0.9rem; color: var(--ink-2); line-height: 1.6; }

.tag {
  display: inline-block; font-size: 0.74rem; color: var(--brand);
  background: rgba(10, 108, 255, 0.09); border-radius: 999px; padding: 2px 11px;
}

/* Article */
.article { line-height: 1.85; font-size: 0.98rem; color: var(--ink); margin-top: 22px; }
.article h1, .article h2, .article h3, .article h4 { color: var(--ink); margin: 1.7em 0 0.6em; line-height: 1.4; letter-spacing: -0.01em; }
.article h1 { font-size: 1.6rem; border-bottom: 1px solid var(--line); padding-bottom: 0.3em; }
.article h2 { font-size: 1.3rem; }
.article h3 { font-size: 1.08rem; }
.article p { margin: 0.85em 0; }
.article ul, .article ol { padding-left: 1.5em; margin: 0.85em 0; }
.article li { margin: 0.32em 0; }
.article code { background: #eef4fb; color: #00518f; border-radius: 5px; padding: 1px 6px; font-family: Consolas, monospace; font-size: 0.9em; }
.article pre { background: #071022; color: #d8ecff; border-radius: 14px; padding: 18px 20px; overflow-x: auto; margin: 1.1em 0; }
.article pre code { background: none; color: inherit; padding: 0; }
.article blockquote { border-left: 4px solid var(--brand); background: var(--bg-soft); padding: 12px 18px; margin: 1.1em 0; color: var(--ink-2); border-radius: 0 12px 12px 0; }
.article table { width: 100%; border-collapse: collapse; margin: 1.1em 0; font-size: 0.92rem; }
.article th, .article td { border: 1px solid var(--line); padding: 9px 13px; text-align: left; }
.article th { background: var(--bg-soft); color: var(--ink); }
.article img { max-width: 100%; border-radius: 12px; }
.article a { text-decoration: underline; }

/* ------------------------------------------------------------------ */
/* Utilities / responsive                                              */
/* ------------------------------------------------------------------ */

.kv-inline { display: flex; gap: 20px; flex-wrap: wrap; color: var(--ink-2); font-size: 0.9rem; }
.mt-0 { margin-top: 0; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.text-center { text-align: center; }
.text-soft { color: var(--ink-2); }

@media (max-width: 1024px) {
  .feature { grid-template-columns: 1fr; gap: 36px; padding: 56px 0; }
  .feature.reverse .feature-copy { order: 1; }
  .feature.reverse .feature-visual { order: 2; }
  .feature-visual { min-height: 280px; }
}

@media (max-width: 720px) {
  .container { padding: 0 18px; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 76px 0 84px; }
  .page-hero { padding: 56px 0 60px; }
  .section { padding: 52px 0; }
  .hero-actions .btn { width: 100%; }
  .feature { padding: 44px 0; }
  .cta-band { padding: 40px 28px; }
  .post-list { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .hero-stats { grid-template-columns: 1fr; }
}