/* ===== 字体引入 ===== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Naskh+Arabic:wght@400;500;600;700&family=Noto+Sans+Arabic:wght@300;400;500;700&display=swap');

/* ===== CSS 自定义属性 ===== */
:root {
  --c-primary: #ff0000;
  --c-accent: #8b00ff;
  --c-base: #261717;
  --c-base-light: #3a2020;
  --c-base-dark: #180e0e;
  --c-text: #f5e8e8;
  --c-text-muted: #c9a8a8;
  --c-border: rgba(255, 255, 255, 0.18);
  --c-glass-bg: rgba(255, 255, 255, 0.10);
  --c-glass-bg-strong: rgba(255, 255, 255, 0.16);
  --c-overlay: rgba(38, 23, 23, 0.72);
  --c-primary-dim: rgba(255, 0, 0, 0.22);
  --c-accent-dim: rgba(139, 0, 255, 0.22);
  --radius-card: 28px;
  --radius-sm: 12px;
  --radius-btn: 8px;
  --blur: blur(16px);
  --blur-sm: blur(10px);
  --font-main: 'Noto Naskh Arabic', 'Noto Sans Arabic', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', serif;
  --font-ui: 'Noto Sans Arabic', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --max-w: 1160px;
  --gap: 1.5rem;
  --transition: 0.25s ease;
}

/* ===== 重置与基础 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 17px;
}

body {
  font-family: var(--font-main);
  background-color: var(--c-base);
  color: var(--c-text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse at 20% 30%, rgba(139, 0, 255, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 70%, rgba(255, 0, 0, 0.15) 0%, transparent 55%);
}

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

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

a:hover {
  color: #ff4444;
  opacity: 0.9;
}

ul, menu {
  list-style: none;
}

/* ===== 容器 ===== */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ===== 站点包裹 ===== */
.site-wrap {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(38, 23, 23, 0.85);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--c-border);
}

.header-brand-row {
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--c-text);
  text-decoration: none;
}

.brand-logo:hover {
  color: var(--c-primary);
  opacity: 1;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.brand-name {
  font-family: var(--font-ui);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 导航菜单行 */
.header-nav-row {
  padding: 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
}

/* details > summary + menu 结构 */
.nav-dropdown {
  position: relative;
}

.nav-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1rem;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--c-text-muted);
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  list-style: none;
  white-space: nowrap;
  min-height: 44px;
}

.nav-toggle::-webkit-details-marker { display: none; }

.nav-toggle:hover,
.nav-dropdown[open] .nav-toggle {
  color: var(--c-text);
  background: var(--c-glass-bg);
  border-color: var(--c-border);
}

.nav-arrow {
  font-size: 0.75rem;
  transition: transform var(--transition);
}

.nav-dropdown[open] .nav-arrow {
  transform: rotate(180deg);
}

.nav-dropdown > menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 200;
  background: rgba(38, 23, 23, 0.96);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  min-width: 280px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.nav-dropdown > menu > li > a {
  display: block;
  padding: 0.65rem 1rem;
  font-size: 0.88rem;
  color: var(--c-text-muted);
  border-radius: 6px;
  transition: all var(--transition);
  min-height: 40px;
  line-height: 1.4;
  display: flex;
  align-items: center;
}

.nav-dropdown > menu > li > a:hover {
  background: var(--c-glass-bg-strong);
  color: var(--c-text);
  padding-left: 1.25rem;
}

/* 内联导航链接（桌面直排） */
.nav-links-inline {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
  flex: 1;
}

.nav-link-item {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--c-text-muted);
  border-radius: 6px;
  transition: all var(--transition);
  min-height: 40px;
  white-space: nowrap;
}

.nav-link-item:hover {
  color: var(--c-text);
  background: var(--c-glass-bg);
  opacity: 1;
}

/* ===== Hero ===== */
.hero-section,
.feature-hero,
.page-hero {
  position: relative;
  min-height: 45vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-base-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(38, 23, 23, 0.88) 0%,
    rgba(139, 0, 255, 0.35) 50%,
    rgba(255, 0, 0, 0.25) 100%
  );
  z-index: 1;
}

/* 斜切色带 */
.hero-slash {
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--c-base);
  clip-path: polygon(0 60%, 100% 0%, 100% 100%, 0% 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 3.5rem 1.25rem 5rem;
  width: 100%;
}

.hero-h1 {
  font-family: var(--font-ui);
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
  text-shadow: 0 2px 12px rgba(0,0,0,0.6);
  background: linear-gradient(135deg, #fff 30%, rgba(255,180,180,0.9));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--c-text-muted);
  max-width: 600px;
  margin: 0 auto 1.75rem;
  line-height: 1.65;
}

.hero-meta {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  margin-top: 0.75rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

/* page-hero（内页）更紧凑 */
.page-hero {
  min-height: 42vh;
}

.page-hero .hero-content {
  text-align: left;
  padding: 2.5rem 1.25rem 4.5rem;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.83rem;
  color: var(--c-text-muted);
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

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

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

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  background: linear-gradient(135deg, var(--c-primary), #cc0000);
  color: #fff;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  min-height: 44px;
  box-shadow: 0 4px 20px rgba(255,0,0,0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #ff3333, var(--c-primary));
  box-shadow: 0 6px 28px rgba(255,0,0,0.5);
  transform: translateY(-1px);
  color: #fff;
  opacity: 1;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  background: var(--c-glass-bg);
  color: var(--c-text);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius-btn);
  border: 1px solid var(--c-border);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  min-height: 44px;
  -webkit-backdrop-filter: var(--blur-sm);
  backdrop-filter: var(--blur-sm);
}

.btn-ghost:hover {
  background: var(--c-glass-bg-strong);
  color: #fff;
  opacity: 1;
}

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 1rem;
  min-height: 48px;
}

.btn-submit {
  width: 100%;
  margin-top: 0.5rem;
}

/* ===== 玻璃面板 ===== */
.glass-panel {
  background: var(--c-glass-bg);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.glass-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  pointer-events: none;
}

/* 玻璃卡片 */
.glass-card {
  background: var(--c-glass-bg);
  -webkit-backdrop-filter: var(--blur-sm);
  backdrop-filter: var(--blur-sm);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(139, 0, 255, 0.25);
}

/* ===== 主内容区 ===== */
.site-main {
  flex: 1;
  padding: 2.5rem 0 3rem;
}

/* ===== content-section（main > article > figure/aside 交错）===== */
.content-section {
  max-width: var(--max-w);
  margin: 0 auto 2.5rem;
  padding: 0 1.25rem;
}

.content-with-aside {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2rem;
  align-items: start;
}

.content-prose {
  min-width: 0;
}

/* figure（article 直接子元素） */
.content-figure {
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.figure-accent-line {
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  border-radius: 2px;
  flex-shrink: 0;
}

.figure-brand-mark {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  letter-spacing: 0.1em;
  font-family: var(--font-ui);
}

.about-figure {
  flex-direction: column;
  align-items: flex-start;
}

/* aside（article 直接子元素） */
.content-aside {
  position: sticky;
  top: 90px;
}

.aside-title {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.aside-title-related {
  margin-top: 1.5rem;
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.aside-links li a {
  display: block;
  padding: 0.5rem 0.6rem;
  font-size: 0.88rem;
  color: var(--c-text-muted);
  border-radius: 6px;
  transition: all var(--transition);
  line-height: 1.4;
  min-height: 40px;
  display: flex;
  align-items: center;
}

.aside-links li a:hover {
  background: var(--c-glass-bg-strong);
  color: var(--c-text);
  padding-left: 0.9rem;
  opacity: 1;
}

/* ===== 日期 ===== */
.page-date {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  margin-bottom: 1.25rem;
  font-family: var(--font-ui);
}

/* ===== 正文排版 ===== */
.prose-body {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
}

.prose-body h2,
.prose-body h3,
.prose-body h4 {
  font-family: var(--font-ui);
  font-weight: 600;
  margin: 1.75rem 0 0.75rem;
  color: #fff;
  line-height: 1.35;
}

.prose-body h2 { font-size: 1.3rem; }
.prose-body h3 { font-size: 1.1rem; }
.prose-body h4 { font-size: 1rem; }

.prose-body p {
  margin-bottom: 1rem;
}

.prose-body ul,
.prose-body ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.prose-body li {
  margin-bottom: 0.4rem;
}

.prose-body strong {
  color: #fff;
  font-weight: 600;
}

.prose-body a {
  color: var(--c-primary);
  border-bottom: 1px solid rgba(255,0,0,0.3);
}

.prose-body a:hover {
  border-bottom-color: var(--c-primary);
}

.prose-body blockquote {
  border-left: 3px solid var(--c-accent);
  padding: 0.75rem 1.25rem;
  margin: 1.25rem 0;
  background: var(--c-accent-dim);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--c-text-muted);
}

.prose-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.92rem;
}

.prose-body th {
  background: rgba(139,0,255,0.2);
  color: #fff;
  font-weight: 600;
  padding: 0.65rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
}

.prose-body td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  color: var(--c-text-muted);
}

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

/* 正文内导航链接 */
.prose-nav-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.inline-link {
  font-size: 0.88rem;
  color: var(--c-accent);
  border: 1px solid rgba(139,0,255,0.3);
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  transition: all var(--transition);
  min-height: 32px;
  display: inline-flex;
  align-items: center;
}

.inline-link:hover {
  background: var(--c-accent-dim);
  border-color: var(--c-accent);
  color: var(--c-text);
  opacity: 1;
}

/* ===== article 标题 ===== */
.section-title {
  font-family: var(--font-ui);
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title > span {
  position: relative;
}

.section-title > span::after {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent), transparent);
  margin-top: 4px;
  border-radius: 1px;
}

/* ===== 卡片区 ===== */
.cards-section,
.related-section,
.pricing-table-section,
.about-values-section {
  max-width: var(--max-w);
  margin: 0 auto 2.5rem;
  padding: 0 1.25rem;
}

.section-deco {
  margin-bottom: 1.25rem;
}

.deco-line {
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  border-radius: 2px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  display: flex;
  flex-direction: column;
}

.card-thumb {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex: 1;
}

.card-title {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.35;
}

.card-title span { color: inherit; }

.card-desc {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  flex: 1;
}

.card .btn-primary {
  align-self: flex-start;
  font-size: 0.85rem;
  padding: 0.5rem 1.1rem;
  min-height: 40px;
}

/* ===== 相关推荐卡片 ===== */
.rel-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.rel-card {
  padding: 1.25rem 1.5rem;
}

.rel-card-title {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.rel-card-title span a {
  color: #fff;
}

.rel-card-title span a:hover {
  color: var(--c-primary);
}

.rel-card-desc {
  font-size: 0.83rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}

/* ===== 数据表格 ===== */
.table-section {
  max-width: var(--max-w);
  margin: 0 auto 2.5rem;
  padding: 0 1.25rem;
}

.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.resource-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 500px;
}

.resource-table th {
  background: rgba(139,0,255,0.2);
  color: #fff;
  font-family: var(--font-ui);
  font-weight: 600;
  padding: 0.75rem 1.1rem;
  text-align: left;
  border-bottom: 2px solid rgba(139,0,255,0.4);
  white-space: nowrap;
}

.resource-table td {
  padding: 0.7rem 1.1rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  color: var(--c-text-muted);
}

.resource-table tbody tr:hover {
  background: rgba(255,255,255,0.04);
}

.resource-table td a {
  color: var(--c-primary);
  font-weight: 500;
}

/* ===== 定价表格 ===== */
.pricing-table th:nth-child(2),
.pricing-table td:nth-child(2) {
  color: var(--c-primary);
  font-weight: 600;
}

/* ===== About 价值卡片 ===== */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.value-card {
  padding: 1.75rem;
}

.value-title {
  font-family: var(--font-ui);
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
}

.value-title span { color: inherit; }

.value-card p {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  line-height: 1.65;
}

/* ===== 联系表单 ===== */
.contact-form-wrap {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.form-title {
  font-family: var(--font-ui);
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 1.25rem;
}

.form-title > span { color: inherit; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  font-family: var(--font-ui);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  color: var(--c-text);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: border-color var(--transition);
  width: 100%;
  min-height: 44px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--c-accent);
  background: rgba(139,0,255,0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(201,168,168,0.5);
}

/* ===== FAQ 样式 ===== */
.faq-body details {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  background: var(--c-glass-bg);
  overflow: hidden;
}

.faq-body details summary {
  padding: 1rem 1.25rem;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  transition: background var(--transition);
  min-height: 44px;
  display: flex;
  align-items: center;
  list-style: none;
}

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

.faq-body details[open] summary {
  background: var(--c-primary-dim);
  border-bottom: 1px solid rgba(255,0,0,0.2);
}

.faq-body details > *:not(summary) {
  padding: 1rem 1.25rem;
  font-size: 0.93rem;
  color: var(--c-text-muted);
  line-height: 1.7;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--c-base-dark);
  border-top: 1px solid var(--c-border);
  margin-top: auto;
}

.footer-cta {
  background: linear-gradient(135deg, rgba(255,0,0,0.15), rgba(139,0,255,0.15));
  border-radius: 0;
  border: none;
  border-top: 1px solid rgba(255,0,0,0.2);
  border-bottom: 1px solid rgba(255,0,0,0.2);
  padding: 2.5rem 1.25rem;
  text-align: center;
  margin-bottom: 0;
}

.footer-cta > .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.cta-text {
  font-family: var(--font-ui);
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
}

/* 页脚主体：两栏 */
.footer-main {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  padding-top: 2.5rem;
  padding-bottom: 2rem;
  align-items: start;
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-brand-name {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.footer-brand-desc {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  line-height: 1.6;
}

/* footer 三列 dl 并排 */
.footer-links-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.footer-dl dt {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-dl dd {
  margin-bottom: 0.35rem;
}

.footer-dl dd a {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  min-height: 28px;
}

.footer-dl dd a:hover {
  color: var(--c-primary);
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 1.25rem;
  text-align: center;
}

.copyright {
  font-size: 0.8rem;
  color: rgba(201,168,168,0.55);
  font-family: var(--font-ui);
  line-height: 1.6;
}

/* ===== Parallax & 动效 ===== */
@media (prefers-reduced-motion: no-preference) {
  .glass-card {
    animation: fadeInUp 0.4s ease both;
  }

  .cards-grid .glass-card:nth-child(1) { animation-delay: 0.05s; }
  .cards-grid .glass-card:nth-child(2) { animation-delay: 0.1s; }
  .cards-grid .glass-card:nth-child(3) { animation-delay: 0.15s; }
  .cards-grid .glass-card:nth-child(4) { animation-delay: 0.2s; }
  .cards-grid .glass-card:nth-child(5) { animation-delay: 0.25s; }
  .cards-grid .glass-card:nth-child(6) { animation-delay: 0.3s; }

  @keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .hero-h1 {
    animation: heroReveal 0.6s ease both;
  }

  @keyframes heroReveal {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .content-with-aside {
    grid-template-columns: 1fr;
  }

  .content-aside {
    position: static;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

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

@media (max-width: 680px) {
  html { font-size: 16px; }

  .nav-links-inline {
    display: none;
  }

  .hero-content {
    padding: 2.5rem 1.25rem 4rem;
  }

  .hero-h1 {
    font-size: 1.5rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .rel-cards-grid {
    grid-template-columns: 1fr;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .footer-links-col {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .footer-cta > .container {
    flex-direction: column;
    text-align: center;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-ghost {
    width: 100%;
    max-width: 320px;
  }

  .glass-panel {
    padding: 1.25rem;
  }
}

@media (max-width: 375px) {
  .container { padding: 0 0.9rem; }
  .hero-h1 { font-size: 1.3rem; }
  .resource-table { font-size: 0.82rem; }
}