/* ==========================================================================
   DuckStation 官方网站 - 共享样式表
   配色源自 Logo：橙红主色 + 黄色辅助色 + 深灰中性色
   ========================================================================== */

/* ---------- 设计令牌（CSS Variables） ---------- */
:root {
  /* 主色 - 来自 Logo 鸭头橙 */
  --color-primary: #FF6700;
  --color-primary-dark: #BA2C00;
  --color-primary-light: #FF8B00;
  --color-primary-hover: #E23A05;

  /* 辅助色 - 黄色鸭嘴/方块 */
  --color-accent: #FFCE00;
  --color-accent-dark: #FFB000;

  /* 中性色 */
  --color-bg: #FFFFFF;
  --color-bg-alt: #FAFAFA;
  --color-bg-dark: #1A1A1A;
  --color-bg-dark-2: #0F0F0F;
  --color-surface: #FFFFFF;
  --color-surface-hover: #FFF7F0;

  /* 文字 */
  --color-text: #1F1F1F;
  --color-text-muted: #6B6B6B;
  --color-text-inverse: #FFFFFF;
  --color-text-inverse-muted: #B8B8B8;

  /* 边框与分割 */
  --color-border: #E8E8E8;
  --color-border-dark: #2A2A2A;

  /* 状态色 */
  --color-success: #2E7D32;
  --color-warning: #F9A825;
  --color-danger: #C62828;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --shadow-primary: 0 8px 24px rgba(255, 103, 0, 0.32);
  --shadow-dark: 0 12px 48px rgba(0, 0, 0, 0.45);

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 999px;

  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* 容器 */
  --container-max: 1200px;
  --container-padding: 24px;

  /* 字体 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Consolas, Monaco, "Courier New", monospace;

  /* 动画 */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --duration-fast: 0.15s;
  --duration-base: 0.25s;
  --duration-slow: 0.4s;

  /* 字号 */
  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-base: 16px;
  --fs-md: 18px;
  --fs-lg: 20px;
  --fs-xl: 24px;
  --fs-2xl: 32px;
  --fs-3xl: 40px;
  --fs-4xl: 56px;
}

/* ---------- 全局重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease);
}

a:hover {
  color: var(--color-primary-hover);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

/* ---------- 通用工具类 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-3xl) 0;
}

.section--tight {
  padding: var(--space-2xl) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--dark {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

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

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-text-muted);
}

.text-accent {
  color: var(--color-primary);
}

/* ---------- 标题区 ---------- */
.section-header {
  max-width: 760px;
  margin: 0 auto var(--space-2xl);
  text-align: center;
}

.section-eyebrow {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(255, 103, 0, 0.08);
  color: var(--color-primary);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section--dark .section-eyebrow {
  background: rgba(255, 206, 0, 0.12);
  color: var(--color-accent);
}

.section-title {
  font-size: var(--fs-3xl);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.section--dark .section-subtitle {
  color: var(--color-text-inverse-muted);
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-2xl) 0;
  }
  .section-title {
    font-size: var(--fs-2xl);
  }
  .section-subtitle {
    font-size: var(--fs-base);
  }
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: var(--fs-md);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--duration-base) var(--ease);
  white-space: nowrap;
  border: 2px solid transparent;
  font-family: inherit;
  cursor: pointer;
  letter-spacing: 0.02em;
}

.btn--primary {
  background: var(--color-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-primary);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 103, 0, 0.42);
}

.btn--secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-inverse);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

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

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

.btn--accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
}

.btn--lg {
  padding: 16px 40px;
  font-size: var(--fs-lg);
}

.btn--block {
  display: flex;
  width: 100%;
}

.btn-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--duration-base) var(--ease);
}

.site-header--scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 var(--container-padding);
  max-width: var(--container-max);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--color-text);
}

.brand:hover {
  color: var(--color-text);
}

.brand-logo {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-size: var(--fs-md);
  font-weight: 700;
}

.brand-tag {
  font-size: 11px;
  color: var(--color-text-muted);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  position: relative;
  padding: 10px 16px;
  font-size: var(--fs-sm);
  color: var(--color-text);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease);
}

.nav-link:hover {
  color: var(--color-primary);
  background: rgba(255, 103, 0, 0.06);
}

.nav-link--active {
  color: var(--color-primary);
}

.nav-link--active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--duration-base) var(--ease);
  margin: 0 auto;
}

.nav-toggle--active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle--active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle--active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 968px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #FFFFFF;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-200%);
    transition: transform var(--duration-base) var(--ease);
    border-bottom: 1px solid var(--color-border);
  }

  .nav-menu--open {
    transform: translateY(0);
  }

  .nav-link {
    padding: 14px 16px;
    font-size: var(--fs-base);
  }

  .nav-link--active::after {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-cta .btn--secondary {
    display: none;
  }
}

/* ---------- 通用页面 Hero（非首页） ---------- */
.page-hero {
  padding: 140px 0 80px;
  background: radial-gradient(ellipse at top, rgba(255, 103, 0, 0.12), transparent 60%), var(--color-bg-dark);
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 206, 0, 0.18), transparent 70%);
  pointer-events: none;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -120px;
  left: -120px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 103, 0, 0.18), transparent 70%);
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero-eyebrow {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(255, 206, 0, 0.14);
  color: var(--color-accent);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.page-hero-title {
  font-size: var(--fs-4xl);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  max-width: 800px;
}

.page-hero-subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-inverse-muted);
  max-width: 680px;
  line-height: 1.7;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-sm);
  color: var(--color-text-inverse-muted);
  margin-bottom: var(--space-lg);
}

.breadcrumb a {
  color: var(--color-text-inverse-muted);
}

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

.breadcrumb-sep {
  opacity: 0.5;
}

@media (max-width: 768px) {
  .page-hero {
    padding: 110px 0 56px;
  }
  .page-hero-title {
    font-size: var(--fs-3xl);
  }
}

/* ---------- 卡片基础 ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--duration-base) var(--ease);
}

.card:hover {
  border-color: rgba(255, 103, 0, 0.4);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 103, 0, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.card-text {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

/* ---------- 网格 ---------- */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 968px) {
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

/* ---------- 徽章 ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  background: rgba(255, 103, 0, 0.1);
  color: var(--color-primary);
  letter-spacing: 0.04em;
}

.badge--success {
  background: rgba(46, 125, 50, 0.1);
  color: var(--color-success);
}

.badge--accent {
  background: rgba(255, 206, 0, 0.18);
  color: #B07800;
}

.badge--neutral {
  background: #F0F0F0;
  color: var(--color-text-muted);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ---------- 立即下载弹窗 ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal--open {
  display: flex;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
}
button { outline: none } 
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 15, 15, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: fadeIn var(--duration-base) var(--ease);
}

.modal-dialog {
  position: relative;
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  max-width: 720px;
  width: 100%;
  max-height: 92vh;
  overflow: hidden;
  box-shadow: var(--shadow-dark);
  animation: modalIn var(--duration-base) var(--ease);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(135deg, rgba(255, 103, 0, 0.04), rgba(255, 206, 0, 0.04));
}

.modal-title {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin: 0;
}

.modal-title-sub {
  display: block;
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  margin-top: 4px;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
  border: none;
}

.modal-close:hover {
  background: var(--color-border);
  transform: rotate(90deg);
}

.modal-close svg {
  width: 18px;
  height: 18px;
}

.modal-body {
  padding: 32px;
  max-height: calc(92vh - 100px);
  overflow-y: auto;
}

.modal-qr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.qr-card {
  text-align: center;
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--duration-base) var(--ease);
}

.qr-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.qr-image {
  width: 200px;
  height: 200px;
  margin: 0 auto var(--space-md);
  background: #FFFFFF;
  padding: 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.qr-image svg {
  width: 100%;
  height: 100%;
}

.qr-platform {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: 4px;
}

.qr-platform-icon {
  width: 22px;
  height: 22px;
}

.qr-hint {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-top: 4px;
}

.modal-notice {
  padding: var(--space-md);
  background: rgba(255, 206, 0, 0.1);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.modal-notice strong {
  color: var(--color-primary-dark);
}

.modal-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

@media (max-width: 600px) {
  .modal-qr-grid {
    grid-template-columns: 1fr;
  }
  .modal-header,
  .modal-body {
    padding: 20px;
  }
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--color-bg-dark-2);
  color: var(--color-text-inverse-muted);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand .brand {
  color: #FFFFFF;
  margin-bottom: var(--space-md);
}

.footer-brand p {
  font-size: var(--fs-sm);
  line-height: 1.7;
  max-width: 360px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: var(--space-md);
}

.footer-social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-inverse-muted);
  transition: all var(--duration-base) var(--ease);
}

.footer-social a:hover {
  background: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.footer-social svg {
  width: 18px;
  height: 18px;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: var(--fs-sm);
  font-weight: 700;
  margin-bottom: var(--space-md);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--color-text-inverse-muted);
  font-size: var(--fs-sm);
  transition: color var(--duration-fast) var(--ease);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: var(--fs-xs);
}

.footer-bottom a {
  color: var(--color-text-inverse-muted);
}

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

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

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-brand {
    grid-column: span 1;
  }
}

/* ---------- 滚动到顶部 ---------- */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-primary);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--duration-base) var(--ease);
  z-index: 90;
  border: none;
}

.scroll-top--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--color-primary-hover);
  transform: translateY(-3px);
}

.scroll-top svg {
  width: 22px;
  height: 22px;
}

/* ---------- 动画进入 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal--in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 表格 ---------- */
.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.table th {
  background: var(--color-bg-alt);
  text-align: left;
  padding: 14px 20px;
  font-weight: 600;
  font-size: var(--fs-sm);
  border-bottom: 1px solid var(--color-border);
}

.table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--fs-sm);
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background: var(--color-surface-hover);
}

/* ---------- 锚点偏移（防止固定导航遮挡） ---------- */
[id] {
  scroll-margin-top: 100px;
}