:root {
  --brand-600: #c2410c;
  --brand-500: #ea580c;
  --brand-400: #fb923c;
  --brand-300: #fdba74;
  --brand-200: #fed7aa;
  --brand-100: #ffedd5;
  --brand-50: #fff7ed;
  --brand-900: #7c2d12;

  --bg: #fffaf5;
  --bg-soft: #fff7ed;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.55);
  --border: rgba(194, 65, 12, 0.14);
  --border-strong: rgba(194, 65, 12, 0.28);

  --text: #2a1810;
  --text-soft: #6b4b3a;
  --text-muted: #92705c;
  --heading: #3b1d0e;

  --shadow-sm: 0 2px 8px rgba(124, 45, 18, 0.06);
  --shadow-md: 0 10px 30px rgba(124, 45, 18, 0.10);
  --shadow-lg: 0 24px 60px rgba(124, 45, 18, 0.16);
  --shadow-glow: 0 0 0 1px rgba(234, 88, 12, 0.10), 0 12px 34px rgba(234, 88, 12, 0.18);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --maxw: 1200px;
  --gap: clamp(16px, 2.4vw, 28px);
  --section-pad: clamp(40px, 6vw, 88px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 72px;
}

[data-theme="dark"] {
  --bg: #160d08;
  --bg-soft: #1d120b;
  --surface: rgba(45, 27, 17, 0.62);
  --surface-solid: #241509;
  --surface-glass: rgba(45, 27, 17, 0.45);
  --border: rgba(251, 146, 60, 0.16);
  --border-strong: rgba(251, 146, 60, 0.32);

  --text: #f6e7db;
  --text-soft: #d9bfa9;
  --text-muted: #b3927c;
  --heading: #ffedd5;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 26px 64px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 0 0 1px rgba(251, 146, 60, 0.18), 0 14px 38px rgba(234, 88, 12, 0.22);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #160d08;
    --bg-soft: #1d120b;
    --surface: rgba(45, 27, 17, 0.62);
    --surface-solid: #241509;
    --surface-glass: rgba(45, 27, 17, 0.45);
    --border: rgba(251, 146, 60, 0.16);
    --border-strong: rgba(251, 146, 60, 0.32);
    --text: #f6e7db;
    --text-soft: #d9bfa9;
    --text-muted: #b3927c;
    --heading: #ffedd5;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 26px 64px rgba(0, 0, 0, 0.55);
    --shadow-glow: 0 0 0 1px rgba(251, 146, 60, 0.18), 0 14px 38px rgba(234, 88, 12, 0.22);
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 600px at 8% -8%, rgba(253, 186, 116, 0.35), transparent 60%),
    radial-gradient(900px 520px at 100% 0%, rgba(251, 146, 60, 0.22), transparent 55%),
    radial-gradient(1000px 700px at 50% 110%, rgba(254, 215, 170, 0.28), transparent 60%);
  background-attachment: fixed;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

[data-theme="dark"] body {
  background-image:
    radial-gradient(1200px 600px at 8% -8%, rgba(194, 65, 12, 0.28), transparent 60%),
    radial-gradient(900px 520px at 100% 0%, rgba(124, 45, 18, 0.35), transparent 55%),
    radial-gradient(1000px 700px at 50% 110%, rgba(234, 88, 12, 0.16), transparent 60%);
}

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

a {
  color: var(--brand-600);
  text-decoration: none;
  transition: color 0.25s var(--ease), opacity 0.25s var(--ease);
}

a:hover {
  color: var(--brand-500);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--brand-400);
  outline-offset: 3px;
  border-radius: 6px;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--heading);
  line-height: 1.3;
  margin: 0 0 0.6em;
  font-weight: 800;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.7rem, 3.6vw, 2.9rem);
  line-height: 1.22;
}

h2 {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  position: relative;
  padding-left: 18px;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 6px;
  border-radius: 6px;
  background: linear-gradient(180deg, var(--brand-400), var(--brand-600));
}

h3 {
  font-size: clamp(1.08rem, 1.7vw, 1.28rem);
  color: var(--brand-900);
}

[data-theme="dark"] h3 {
  color: var(--brand-200);
}

p {
  margin: 0 0 1em;
  color: var(--text-soft);
}

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.3em;
  color: var(--text-soft);
}

li {
  margin-bottom: 0.45em;
}

li::marker {
  color: var(--brand-500);
  font-weight: 700;
}

blockquote {
  margin: 0 0 1em;
  padding: 16px 20px;
  border-left: 4px solid var(--brand-500);
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-soft);
  font-style: italic;
}

blockquote p {
  margin: 0;
}

address {
  font-style: normal;
}

::selection {
  background: var(--brand-300);
  color: var(--brand-900);
}

/* ============ Header ============ */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.top-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  padding: 8px 20px;
  font-size: 0.78rem;
  color: #fff;
  background: linear-gradient(100deg, var(--brand-600), var(--brand-500) 45%, var(--brand-400));
  letter-spacing: 0.02em;
}

.top-bar span {
  white-space: nowrap;
  opacity: 0.95;
}

#site-header nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

#site-header .logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.02rem;
  color: var(--heading);
  letter-spacing: 0.01em;
  flex-shrink: 0;
}

#site-header .logo svg {
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(194, 65, 12, 0.28);
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease);
}

#site-header .logo:hover svg {
  transform: rotate(-6deg) scale(1.06);
  box-shadow: 0 10px 26px rgba(194, 65, 12, 0.4);
}

#site-header .logo span {
  white-space: nowrap;
}

#site-header nav > ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0;
  padding: 0;
  flex: 1 1 auto;
  justify-content: center;
}

#site-header nav > ul li {
  margin: 0;
}

#site-header nav > ul a {
  display: inline-block;
  padding: 7px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-soft);
  position: relative;
  transition: color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}

#site-header nav > ul a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand-500), var(--brand-300));
  transform: translateX(-50%);
  transition: width 0.3s var(--ease);
}

#site-header nav > ul a:hover {
  color: var(--brand-600);
  background: rgba(251, 146, 60, 0.12);
  transform: translateY(-1px);
}

#site-header nav > ul a:hover::after {
  width: 60%;
}

#site-header nav form[role="search"] {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  flex-shrink: 0;
}

#site-header nav form[role="search"] label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

#site-header nav form[role="search"] input[type="search"] {
  width: clamp(140px, 18vw, 220px);
  padding: 9px 14px;
  font: inherit;
  font-size: 0.86rem;
  color: var(--text);
  background: var(--surface-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}

#site-header nav form[role="search"] input[type="search"]::placeholder {
  color: var(--text-muted);
}

#site-header nav form[role="search"] input[type="search"]:focus {
  border-color: var(--brand-400);
  background: var(--surface-solid);
  box-shadow: 0 0 0 4px rgba(251, 146, 60, 0.18);
  outline: none;
}

#site-header nav form[role="search"] button,
#theme-toggle {
  font: inherit;
  font-size: 0.84rem;
  font-weight: 700;
  color: #fff;
  padding: 9px 16px;
  border: none;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 6px 16px rgba(194, 65, 12, 0.26);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), filter 0.25s var(--ease);
}

#theme-toggle {
  background: var(--surface-glass);
  color: var(--brand-600);
  border: 1px solid var(--border-strong);
  box-shadow: none;
}

[data-theme="dark"] #theme-toggle {
  color: var(--brand-200);
}

#site-header nav form[role="search"] button:hover,
#theme-toggle:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(194, 65, 12, 0.32);
  filter: brightness(1.05);
}

#theme-toggle:hover {
  background: var(--brand-100);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] #theme-toggle:hover {
  background: rgba(251, 146, 60, 0.16);
}

/* ============ Main layout ============ */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px 60px;
}

main > section {
  margin-top: var(--section-pad);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

main > section > article {
  background: var(--surface);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  backdrop-filter: blur(14px) saturate(150%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(18px, 3vw, 30px);
  margin-bottom: var(--gap);
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}

main > section > article::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(251, 146, 60, 0.10), transparent 45%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
}

main > section > article:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

main > section > article:hover::before {
  opacity: 1;
}

main > section > article > * {
  position: relative;
  z-index: 1;
}

main > section > article:last-child {
  margin-bottom: 0;
}

/* ============ Hero ============ */
#home {
  margin-top: 28px;
}

#home {
  position: relative;
  border-radius: var(--radius-xl);
  padding: clamp(24px, 4vw, 52px);
  background:
    linear-gradient(135deg, rgba(255, 247, 237, 0.92), rgba(255, 237, 213, 0.72)),
    radial-gradient(700px 320px at 90% -10%, rgba(251, 146, 60, 0.55), transparent 60%),
    radial-gradient(500px 300px at 0% 100%, rgba(194, 65, 12, 0.28), transparent 65%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  isolation: isolate;
}

[data-theme="dark"] #home {
  background:
    linear-gradient(135deg, rgba(36, 21, 9, 0.92), rgba(45, 27, 17, 0.72)),
    radial-gradient(700px 320px at 90% -10%, rgba(234, 88, 12, 0.42), transparent 60%),
    radial-gradient(500px 300px at 0% 100%, rgba(124, 45, 18, 0.55), transparent 65%);
}

#home::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -120px;
  top: -160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(251, 146, 60, 0.45), transparent 65%);
  filter: blur(20px);
  z-index: -1;
  animation: floatSlow 12s ease-in-out infinite;
}

@keyframes floatSlow {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-24px, 20px, 0) scale(1.08); }
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.breadcrumb li {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--brand-400);
  font-weight: 700;
}

.breadcrumb a {
  color: var(--text-muted);
  font-weight: 600;
}

.breadcrumb a:hover {
  color: var(--brand-600);
}

.breadcrumb [aria-current="page"] {
  color: var(--brand-600);
  font-weight: 700;
}

#hero-title {
  background: linear-gradient(100deg, var(--brand-900), var(--brand-600) 55%, var(--brand-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5em;
  max-width: 22ch;
}

[data-theme="dark"] #hero-title {
  background: linear-gradient(100deg, var(--brand-100), var(--brand-300) 55%, var(--brand-400));
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-lead {
  font-size: clamp(0.95rem, 1.3vw, 1.06rem);
  line-height: 1.85;
  color: var(--text-soft);
  max-width: 68ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 26px 0 34px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-pill);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
  will-change: transform;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  box-shadow: 0 12px 28px rgba(194, 65, 12, 0.32);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 0.7s var(--ease);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 18px 40px rgba(194, 65, 12, 0.42);
}

.btn-primary:hover::after {
  transform: translateX(120%);
}

.btn-secondary {
  color: var(--brand-600);
  background: var(--surface-glass);
  border: 1px solid var(--border-strong);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  color: var(--brand-900);
  background: var(--brand-100);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .btn-secondary {
  color: var(--brand-200);
}

[data-theme="dark"] .btn-secondary:hover {
  color: var(--brand-900);
}

#home figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface-solid);
  box-shadow: var(--shadow-md);
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}

#home figure:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

#home figure svg {
  width: 100%;
  height: auto;
}

#home figcaption {
  padding: 14px 20px;
  font-size: 0.86rem;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--surface-glass);
}

/* ============ Details / FAQ ============ */
#faq {
  display: grid;
  gap: 12px;
}

#faq > h2 {
  grid-column: 1 / -1;
}

#faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

#faq details:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

#faq details[open] {
  border-color: var(--brand-400);
  box-shadow: var(--shadow-glow);
}

#faq summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 52px 16px 20px;
  font-weight: 700;
  color: var(--heading);
  position: relative;
  user-select: none;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--brand-600);
  background: var(--brand-100);
  transition: transform 0.35s var(--ease), background 0.35s var(--ease), color 0.35s var(--ease);
}

[data-theme="dark"] #faq summary::after {
  background: rgba(251, 146, 60, 0.16);
  color: var(--brand-200);
}

#faq details[open] summary {
  color: var(--brand-600);
  background: rgba(251, 146, 60, 0.08);
}

#faq details[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  color: #fff;
}

#faq summary:hover {
  color: var(--brand-600);
}

#faq details p {
  margin: 0;
  padding: 0 20px 18px;
  font-size: 0.92rem;
  animation: fadeIn 0.4s var(--ease);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============ Sitemap & Links ============ */
#sitemap ul,
#links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

#sitemap li,
#links li {
  margin: 0;
}

#sitemap a,
#links a {
  display: block;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-soft);
  transition: transform 0.28s var(--ease), color 0.28s var(--ease), border-color 0.28s var(--ease), background 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

#sitemap a:hover,
#links a:hover {
  color: var(--brand-600);
  border-color: var(--brand-400);
  background: var(--brand-50);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] #sitemap a:hover,
[data-theme="dark"] #links a:hover {
  background: rgba(251, 146, 60, 0.12);
  color: var(--brand-200);
}

/* ============ Footer ============ */
footer {
  margin-top: 40px;
  padding: clamp(32px, 5vw, 56px) 20px 28px;
  background: linear-gradient(180deg, transparent, rgba(194, 65, 12, 0.06));
  border-top: 1px solid var(--border);
}

footer {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--gap);
  max-width: var(--maxw);
  margin-left: auto;
  margin-right: auto;
}

footer section {
  background: var(--surface);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}

footer section:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

footer h2 {
  font-size: 1rem;
  padding-left: 14px;
  margin-bottom: 0.7em;
}

footer h2::before {
  width: 4px;
}

footer p {
  font-size: 0.86rem;
  line-height: 1.7;
  margin: 0;
  color: var(--text-muted);
}

footer a {
  color: var(--brand-600);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* ============ Scroll reveal ============ */
main > section,
footer section {
  animation: revealUp 0.7s var(--ease) both;
}

@supports (animation-timeline: view()) {
  main > section,
  footer section {
    animation: revealUp 0.7s var(--ease) both;
    animation-timeline: view();
    animation-range: entry 0% entry 35%;
  }
}

@keyframes revealUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  #site-header nav {
    gap: 12px;
  }

  #site-header nav > ul {
    order: 3;
    flex-basis: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
  }

  #site-header nav > ul::-webkit-scrollbar {
    height: 4px;
  }

  #site-header nav > ul::-webkit-scrollbar-thumb {
    background: var(--brand-300);
    border-radius: 4px;
  }

  #site-header nav > ul a {
    white-space: nowrap;
  }

  #site-header nav form[role="search"] {
    margin-left: auto;
  }
}

@media (max-width: 720px) {
  :root {
    --header-h: 64px;
    --section-pad: 40px;
  }

  body {
    font-size: 15px;
  }

  .top-bar {
    font-size: 0.7rem;
    padding: 7px 14px;
    gap: 4px 16px;
  }

  #site-header nav {
    padding: 10px 14px;
    gap: 10px;
  }

  #site-header .logo {
    font-size: 0.92rem;
  }

  #site-header .logo svg {
    width: 34px;
    height: 34px;
  }

  #site-header nav form[role="search"] {
    flex: 1 1 100%;
    order: 4;
  }

  #site-header nav form[role="search"] input[type="search"] {
    width: 100%;
    flex: 1;
  }

  #theme-toggle {
    margin-left: auto;
    padding: 8px 12px;
    font-size: 0.78rem;
  }

  main {
    padding: 0 14px 40px;
  }

  #home {
    padding: 22px 18px;
    border-radius: var(--radius-lg);
  }

  #hero-title {
    max-width: none;
  }

  .hero-actions {
    margin: 20px 0 26px;
  }

  .btn-primary,
  .btn-secondary {
    flex: 1 1 100%;
    padding: 12px 20px;
  }

  #faq summary {
    padding: 14px 46px 14px 16px;
    font-size: 0.94rem;
  }

  #faq details p {
    padding: 0 16px 16px;
  }

  #sitemap ul,
  #links ul {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
  }

  footer {
    padding: 28px 14px 20px;
    grid-template-columns: 1fr;
  }

  footer section {
    padding: 16px 18px;
  }
}

@media (max-width: 400px) {
  #site-header .logo span {
    font-size: 0.84rem;
  }

  .hero-actions {
    gap: 10px;
  }
}

@media print {
  #site-header,
  footer,
  .hero-actions,
  #theme-toggle {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  main > section > article,
  #faq details {
    box-shadow: none;
    border: 1px solid #ccc;
    background: #fff;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}