/* Super Author 官网 — 纵向单页、传统下载优先 */

:root {
  --bg: #f0e9e1;
  --bg-alt: #e8dfd4;
  --surface: #fffdf9;
  --text: #2a221c;
  --text-soft: #4d4036;
  --muted: #7d6c62;
  --line: rgba(100, 75, 58, 0.14);
  --accent: #c47a30;
  --accent-deep: #a86424;
  --shadow: 0 8px 28px rgba(60, 44, 32, 0.08);
  --radius: 12px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --header-h: 56px;
  --max-w: 920px;
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent-deep);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  padding: 8px 16px;
  background: var(--accent);
  color: #fff;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse 90% 50% at 50% -10%, rgba(255, 220, 190, 0.5), transparent 55%),
    linear-gradient(180deg, #f5ede5 0%, var(--bg) 100%);
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 253, 249, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
  height: var(--header-h);
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-start;
  gap: 12px 16px;
}

.brand {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  margin-right: auto;
}

.brand:hover {
  text-decoration: none;
}

.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.site-nav {
  display: flex;
  flex: 0 1 auto;
  flex-wrap: nowrap;
  justify-content: flex-end;
  gap: 0 14px;
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  font-size: 0.88rem;
}

.site-nav::-webkit-scrollbar {
  display: none;
}

.site-nav a {
  flex: 0 0 auto;
  color: var(--text-soft);
  text-decoration: none;
  padding: 4px 2px;
  white-space: nowrap;
}

.site-nav a:hover {
  color: var(--accent-deep);
}

.site-nav a.is-active {
  color: var(--accent-deep);
  font-weight: 600;
  text-decoration: none;
  box-shadow: inset 0 -2px 0 var(--accent);
}

.site-nav a.is-active:hover {
  text-decoration: none;
}

.site-nav a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Mobile nav (WeChat / 小屏) */
.site-nav-mobile {
  display: none;
  gap: 6px;
  padding: 8px 16px 10px;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--line);
  scrollbar-width: none;
}

.site-nav-mobile::-webkit-scrollbar {
  display: none;
}

.site-nav-mobile a {
  flex: 0 0 auto;
  padding: 6px 12px;
  font-size: 0.82rem;
  color: var(--text-soft);
  text-decoration: none;
  white-space: nowrap;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
}

.site-nav-mobile a.is-active {
  color: var(--accent-deep);
  font-weight: 600;
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  background: #fff8f0;
  background: color-mix(in srgb, var(--accent) 12%, var(--surface));
  box-shadow: none;
}

/* Page sections */
.page {
  padding-bottom: 48px;
}

.section {
  padding: 56px 20px;
  scroll-margin-top: var(--header-h);
}

.section--download {
  padding-top: 24px;
  padding-bottom: 40px;
}

.section--download .section-title {
  margin-bottom: 10px;
}

.section--download .section-kicker {
  margin-bottom: 6px;
}

.section-lead--compact {
  margin-bottom: 16px;
  font-size: 0.92rem;
}

.section--download .value-pills {
  margin-bottom: 10px;
}

.section--download .value-pills--secondary {
  margin-top: 0;
  margin-bottom: 12px;
}

.section--download .download-tagline {
  margin-bottom: 10px;
  font-size: 0.95rem;
}

.section--alt {
  background: rgba(255, 252, 248, 0.55);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-inner--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.section-inner--reverse .section-copy {
  order: 2;
}

.section-inner--reverse .media-placeholder {
  order: 1;
}

.section-kicker {
  margin: 0 0 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.section-title {
  margin: 0 0 16px;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
}

.section-lead {
  margin: 0 0 20px;
  font-size: 1.05rem;
  color: var(--text-soft);
  max-width: 62ch;
}

.section-cta {
  margin-top: 24px;
}

.section-cta--center {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* Highlights */
.highlight-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-top: 36px;
}

.highlight-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.highlight-item--reverse .highlight-media {
  order: 2;
}

.highlight-item--reverse .highlight-body {
  order: 1;
}

.highlight-media {
  overflow: hidden;
  border-radius: calc(var(--radius) - 2px);
  line-height: 0;
  background: rgba(0, 0, 0, 0.04);
}

.highlight-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
  display: block;
  vertical-align: middle;
  cursor: zoom-in;
  transition: opacity 0.15s ease;
}

.highlight-media img:hover {
  opacity: 0.92;
}

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

.highlight-num {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.highlight-body h3 {
  margin: 0 0 12px;
  font-size: 1.15rem;
}

.highlight-body p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.95rem;
}

/* Compare table */
.compare-scroll-hint {
  display: none;
  margin: 16px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.compare-scroll-hint::after {
  content: " · 右侧暖色列为 Super Author";
}

.compare-wrap {
  margin-top: 28px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

/* 首屏四条核心卖点 */
.value-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.value-pills--secondary {
  margin-top: -8px;
  margin-bottom: 16px;
}

.value-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-deep);
  background: #fff8f0;
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
  border: 1px solid rgba(196, 122, 48, 0.35);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 999px;
  letter-spacing: 0.02em;
}

.value-pill--soft {
  color: var(--text-soft);
  background: var(--surface);
  border-color: var(--line);
  font-weight: 500;
}

.download-tagline {
  margin: 0 0 20px;
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text-soft);
  font-weight: 500;
}

.assistant-banner {
  margin-top: 48px;
  padding: 28px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent) 10%, var(--surface)) 0%,
    var(--surface) 55%
  );
  box-shadow: var(--shadow);
}

.assistant-banner-kicker {
  margin: 0 0 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.assistant-banner-title {
  margin: 0 0 12px;
  font-size: 1.35rem;
  line-height: 1.35;
  color: var(--text);
}

.assistant-banner-lead {
  margin: 0 0 16px;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-soft);
}

.assistant-banner-list {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text);
}

.assistant-banner-list li + li {
  margin-top: 8px;
}

.compare-positioning {
  margin: 24px 0;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fffaf5;
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
}

.compare-positioning p {
  margin: 0 0 12px;
  font-size: 0.95rem;
}

.compare-positioning ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.7;
}

.compare-positioning li + li {
  margin-top: 6px;
}

.compare-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin: 20px 0 12px;
  font-size: 0.85rem;
  color: var(--muted);
}

.compare-table {
  width: 100%;
  min-width: 880px;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.compare-table--products thead th {
  vertical-align: bottom;
  line-height: 1.35;
}

.compare-product {
  display: block;
  font-weight: 700;
  color: var(--text);
}

.compare-tag {
  display: block;
  margin-top: 4px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--muted);
}

.compare-table th,
.compare-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.compare-table thead th {
  background: rgba(196, 122, 48, 0.12);
  font-weight: 700;
  color: var(--text);
}

.compare-col-sa {
  background: #fff8f0;
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
  color: var(--text);
}

.compare-table thead .compare-col-sa {
  background: #ffeedd;
  background: color-mix(in srgb, var(--accent) 22%, var(--surface));
  color: var(--accent-deep);
  font-weight: 700;
}

.compare-table tbody .compare-col-sa {
  border-left: 2px solid rgba(196, 122, 48, 0.45);
}

.compare-col-sticky-right {
  position: sticky;
  right: 0;
  z-index: 3;
  box-shadow: -8px 0 20px rgba(60, 44, 32, 0.08);
}

.compare-col-sticky-left {
  position: sticky;
  left: 0;
  z-index: 2;
  box-shadow: 8px 0 16px rgba(60, 44, 32, 0.06);
}

.compare-table tbody th[scope="row"] {
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  width: 22%;
  min-width: 7.5rem;
}

.compare-table tbody th[scope="row"].compare-col-sticky-left {
  background: #faf7f3;
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.compare-yes {
  color: #2d6a3a;
  font-weight: 600;
}

.compare-no {
  color: #8a4a42;
}

.compare-partial {
  color: var(--muted);
}

.compare-note {
  margin: 16px 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.feature-list {
  margin: 0;
  padding-left: 1.2em;
  color: var(--text-soft);
}

.feature-list li {
  margin-bottom: 8px;
}

/* Download */
.download-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  align-items: stretch;
}

.download-item {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 14px 16px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.download-item--primary {
  border-color: rgba(196, 122, 48, 0.35);
  background: linear-gradient(160deg, #fffdf9 0%, #fff8f0 100%);
}

.download-item-head {
  margin-bottom: 8px;
}

.download-badge {
  display: inline-block;
  margin-bottom: 6px;
  padding: 2px 8px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #fff;
  background: var(--accent);
  border-radius: 999px;
}

.download-item-title {
  margin: 0 0 2px;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
}

.download-item-meta {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.download-item-desc {
  flex: 1;
  margin: 0 0 12px;
  color: var(--text-soft);
  font-size: 0.82rem;
  line-height: 1.5;
}

.download-item-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  margin-top: auto;
}

.download-footnote {
  margin: 14px 0 0;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--muted);
}

.btn--block {
  width: 100%;
  min-height: 40px;
  padding: 0 12px;
  font-size: 0.88rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-deep);
}

.btn-secondary {
  background: transparent;
  color: var(--accent-deep);
  border: 1px solid var(--accent);
}

.btn-secondary:hover:not(.is-disabled) {
  background: rgba(196, 122, 48, 0.08);
}

.btn:disabled,
.btn.is-disabled,
.btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

button.download-btn-gated {
  font-family: inherit;
}

/* Image lightbox */
body.image-lightbox-open {
  overflow: hidden;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.image-lightbox[hidden] {
  display: none;
}

.image-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(20, 16, 14, 0.82);
  cursor: zoom-out;
}

.image-lightbox-panel {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: min(96vw, 1200px);
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.image-lightbox-panel img {
  display: block;
  max-width: 100%;
  max-height: calc(92vh - 48px);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: calc(var(--radius) - 2px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  background: #fff;
}

.image-lightbox-panel figcaption {
  margin: 0;
  max-width: 100%;
  padding: 0 8px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.88);
  text-align: center;
  line-height: 1.4;
}

.image-lightbox-close {
  position: absolute;
  top: -12px;
  right: -12px;
  z-index: 2;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.image-lightbox-close:hover {
  background: #fff;
}

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

/* Header auth (与页面导航分离) */
.header-auth {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  padding-left: 14px;
  margin-left: 2px;
  border-left: 1px solid var(--line);
}

.nav-auth-btn {
  flex: 0 0 auto;
  margin: 0;
  padding: 6px 12px;
  font: inherit;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-soft);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.nav-auth-btn:hover {
  color: var(--accent-deep);
  background: rgba(196, 122, 48, 0.08);
}

.nav-auth-btn--accent {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.nav-auth-btn--accent:hover {
  color: #fff;
  background: var(--accent-deep);
  border-color: var(--accent-deep);
}

.nav-auth-btn[data-auth-logout] {
  color: var(--text-soft);
  border: 1px solid var(--line);
}

.nav-auth-btn[data-auth-logout]:hover {
  color: var(--text);
  background: rgba(0, 0, 0, 0.04);
}

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

.btn--compact {
  min-height: 36px;
  padding: 0 16px;
  font-size: 0.86rem;
}

/* Media placeholders */
.media-placeholder {
  min-height: 280px;
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
}

.media-placeholder-inner {
  text-align: center;
  padding: 24px;
  color: var(--muted);
}

.media-placeholder-label {
  margin: 0 0 8px;
  font-weight: 600;
  color: var(--text-soft);
}

.media-placeholder-hint {
  margin: 0;
  font-size: 0.85rem;
}

.media-placeholder-hint code {
  font-size: 0.8rem;
  background: rgba(0, 0, 0, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
}

.media-placeholder img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: calc(var(--radius) - 2px);
}

.media-placeholder--small {
  min-height: 120px;
  margin-bottom: 16px;
  font-size: 0.8rem;
}

/* Product（双端说明） */
.product-blocks {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 8px;
}

.product-block {
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.product-block-title {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--accent-deep);
}

.product-block p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-soft);
}

/* 说明：数据安全 + FAQ */
.help-prose {
  margin: 8px 0 28px;
}

.help-prose h3,
.help-faq-heading {
  margin: 0 0 12px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.help-faq-heading {
  margin-top: 8px;
  margin-bottom: 16px;
}

.help-prose p {
  margin: 0 0 14px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-soft);
}

.help-prose p:last-child {
  margin-bottom: 0;
}

/* FAQ */
.faq-list {
  margin: 0;
}

.faq-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item dt {
  font-weight: 600;
  margin-bottom: 8px;
}

.faq-item dd {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(255, 253, 249, 0.9);
  padding: 24px 20px;
  font-size: 0.8rem;
  color: var(--muted);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--accent-deep);
}

/* 平板 / 微信 / 窄屏：品牌单独一行靠左，下方胶囊导航 */
@media (max-width: 960px) {
  :root {
    --header-h: 88px;
  }

  html {
    scroll-behavior: auto;
  }

  .bg-grid,
  .noise {
    display: none;
  }

  body {
    background: var(--bg);
  }

  .site-header {
    background: var(--surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .header-inner {
    justify-content: flex-start;
    height: 52px;
    padding: 0 16px;
    max-width: none;
  }

  .brand {
    flex-shrink: 0;
    margin-right: 0;
  }

  .brand-name {
    font-size: 1rem;
  }

  .header-auth {
    margin-left: auto;
    padding-left: 0;
    border-left: none;
  }

  .header-auth .nav-auth-btn {
    padding: 6px 10px;
    font-size: 0.8rem;
  }

  .site-nav {
    display: none;
  }

  .site-nav-mobile {
    display: flex;
  }

  .section {
    padding: 40px 16px;
  }

  .section--download {
    padding-top: 20px;
  }

  .section-title {
    font-size: 1.45rem;
  }

  .section-lead {
    font-size: 0.95rem;
  }

  .section-inner {
    width: 100%;
    min-width: 0;
  }

  .section-inner--split,
  .section-inner--reverse {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section-inner--reverse .section-copy,
  .section-inner--reverse .media-placeholder {
    order: unset;
  }

  .highlight-list {
    gap: 24px;
    margin-top: 24px;
  }

  .highlight-item,
  .highlight-item--reverse {
    grid-template-columns: 1fr;
    padding: 18px;
    gap: 16px;
  }

  .highlight-item--reverse .highlight-media,
  .highlight-item--reverse .highlight-body {
    order: unset;
  }

  .highlight-media img {
    aspect-ratio: 16 / 10;
  }

  .image-lightbox {
    padding: 12px;
  }

  .image-lightbox-close {
    top: 8px;
    right: 8px;
  }

  .image-lightbox-panel img {
    max-height: calc(92vh - 64px);
  }

  .assistant-banner {
    margin-top: 32px;
    padding: 20px 18px;
  }

  .assistant-banner-title {
    font-size: 1.15rem;
  }

  .compare-scroll-hint {
    display: block;
  }

  .compare-wrap {
    margin-left: -16px;
    margin-right: -16px;
    border-left: none;
    border-right: none;
    border-radius: 0;
  }

  .compare-table {
    min-width: 720px;
    font-size: 0.78rem;
  }

  .compare-table th,
  .compare-table td {
    padding: 10px 12px;
  }

  .compare-positioning {
    padding: 16px;
  }

  .download-list {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .download-item {
    padding: 14px 16px;
  }

  .value-pill {
    font-size: 0.8rem;
    padding: 6px 12px;
  }

  .site-footer {
    padding: 20px 16px;
  }

  .footer-links {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* 微信内置浏览器：关闭高开销效果，减轻卡顿 */
.is-wechat .bg-grid,
.is-wechat .noise,
.is-mobile .bg-grid,
.is-mobile .noise {
  display: none !important;
}

.is-wechat .site-header,
.is-mobile .site-header {
  background: var(--surface);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.is-wechat html,
.is-wechat body {
  scroll-behavior: auto;
}

.is-wechat .compare-table,
.is-mobile .compare-table {
  box-shadow: none;
}

.is-wechat .highlight-item,
.is-wechat .download-item,
.is-wechat .assistant-banner,
.is-mobile .highlight-item,
.is-mobile .download-item,
.is-mobile .assistant-banner {
  box-shadow: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}