/* ==========================================================================
   通义千问 - 约稿版式样式表 (Commission Column Style)
   风格：约稿版式
   场景：能力介绍 & 跨语言外贸商务邮件撰写
   核心规范：
   1. 布局：左侧窄栏像作者简介，右侧正文，窄栏顶端写「撰稿」
   2. 风格：约稿页，细线分隔，不用头像，不要人物照片
   3. 字体：窄栏等宽小字 (monospace)，正文宋体 (Songti / serif)
   4. 内容：撰稿栏写通义千问 / qwen，正文讲千问办公与千问网页版，角标 qw
   ========================================================================== */

:root {
  --font-serif: "Songti SC", "Source Han Serif CN", SimSun, "Noto Serif SC", STSong, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Consolas", "Courier New", monospace;

  /* 雅致约稿纸张与文墨色系 */
  --color-paper-bg: #faf8f5;
  --color-paper-pure: #ffffff;
  --color-paper-subtle: #f3efe8;
  --color-ink-deep: #161514;
  --color-ink-text: #2c2a27;
  --color-ink-muted: #6b665e;
  --color-ink-light: #9d968b;
  --color-hairline: #dfd9ce;
  --color-hairline-dark: #161514;
  --color-accent-navy: #1f3a5f;
  --color-accent-coral: #b2432f;

  --container-max: 1220px;
}

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

body {
  background-color: var(--color-paper-bg);
  color: var(--color-ink-text);
  font-family: var(--font-serif);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.layout-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-ink-deep);
  font-weight: 700;
  letter-spacing: -0.01em;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================================================
   1. 顶栏：标志、七个锚点、登录、开始使用
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 248, 245, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-hairline);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo-frame {
  width: 38px;
  height: 38px;
  background: var(--color-ink-deep);
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

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

.brand-title {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  letter-spacing: 0.04em;
  line-height: 1.2;
}

.brand-sub {
  font-size: 0.68rem;
  font-family: var(--font-sans);
  color: var(--color-ink-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-anchors {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

@media (max-width: 1040px) {
  .nav-anchors {
    display: none;
  }
}

.nav-link {
  font-size: 0.88rem;
  font-family: var(--font-serif);
  color: var(--color-ink-text);
  padding: 6px 0;
  position: relative;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--color-accent-coral);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent-coral);
  transition: width 0.25s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-header-login {
  padding: 8px 18px;
  font-size: 0.85rem;
  font-family: var(--font-serif);
  color: var(--color-ink-deep);
  border: 1px solid var(--color-hairline);
  background: var(--color-paper-pure);
  transition: all 0.2s ease;
}

.btn-header-login:hover {
  border-color: var(--color-ink-deep);
}

.btn-header-primary {
  padding: 8px 20px;
  font-size: 0.85rem;
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-paper-pure);
  background: var(--color-ink-deep);
  border: 1px solid var(--color-ink-deep);
  transition: all 0.2s ease;
}

.btn-header-primary:hover {
  background: var(--color-accent-coral);
  border-color: var(--color-accent-coral);
}

/* ==========================================================================
   首屏与约稿版式核心展示舞台 (HERO & COMMISSION STAGE)
   ========================================================================== */
.hero-section {
  padding: 56px 0 44px;
  border-bottom: 1px solid var(--color-hairline);
}

.hero-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-hairline);
}

.hero-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--color-ink-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-spec-tag {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent-coral);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-title-box {
  margin-bottom: 20px;
}

.hero-h1 {
  font-size: 2.15rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

@media (max-width: 768px) {
  .hero-h1 {
    font-size: 1.6rem;
  }
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--color-ink-text);
  max-width: 880px;
  line-height: 1.9;
  margin-bottom: 32px;
}

.hero-search-box {
  margin-bottom: 44px;
}

.hero-search-form {
  display: flex;
  align-items: stretch;
  background: var(--color-paper-pure);
  border: 1px solid var(--color-ink-deep);
  max-width: 820px;
}

.hero-search-input {
  flex: 1;
  border: none;
  padding: 16px 20px;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-ink-deep);
  outline: none;
  background: transparent;
}

.hero-search-btn {
  border: none;
  background: var(--color-ink-deep);
  color: var(--color-paper-pure);
  font-family: var(--font-serif);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0 28px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.hero-search-btn:hover {
  background: var(--color-accent-coral);
}

/* ==========================================================================
   【核心视觉风格】约稿栏（COMMISSION COLUMN STAGE）
   场景：能力介绍 & 外贸商务邮件撰写
   布局规范：
   - 左侧窄栏（像作者简介），细线隔开，不用头像，绝无人物照片
   - 窄栏顶端写「撰稿」
   - 字体：窄栏等宽小字 (font-family: var(--font-mono))，正文宋体 (font-family: var(--font-serif))
   - 撰稿栏写「通义千问 / qwen」
   - 右侧正文讲「千问办公」与「千问网页版」，角标带「qw」
   ========================================================================== */
.commission-board-stage {
  background: var(--color-paper-pure);
  border: 1px solid var(--color-hairline);
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.02);
  margin-top: 36px;
  display: grid;
  grid-template-columns: 260px 1fr;
}

@media (max-width: 860px) {
  .commission-board-stage {
    grid-template-columns: 1fr;
  }
}

/* 左侧窄栏（作者简介式，细线分隔，不用头像） */
.commission-author-col {
  border-right: 1px solid var(--color-hairline);
  padding: 36px 28px;
  background: var(--color-paper-subtle);
  display: flex;
  flex-direction: column;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-ink-muted);
  line-height: 1.7;
}

@media (max-width: 860px) {
  .commission-author-col {
    border-right: none;
    border-bottom: 1px solid var(--color-hairline);
  }
}

/* 窄栏顶端标题：撰稿 */
.commission-author-tag {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  letter-spacing: 0.15em;
  border-bottom: 1px solid var(--color-ink-deep);
  padding-bottom: 8px;
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.commission-author-name {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.commission-author-alias {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent-coral);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.commission-author-bio {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--color-ink-muted);
  line-height: 1.75;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--color-hairline);
}

.commission-meta-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.commission-meta-item strong {
  color: var(--color-ink-deep);
  font-weight: 600;
}

/* 右侧正文区（宋体，讨论千问办公与千问网页版，角标 qw） */
.commission-article-col {
  padding: 40px 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

@media (max-width: 768px) {
  .commission-article-col {
    padding: 24px 20px;
  }
}

.commission-article-title-wrap {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--color-hairline);
  padding-bottom: 12px;
}

.commission-article-h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  line-height: 1.4;
}

/* 角标 qw */
.qw-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-accent-coral);
  background: var(--color-paper-subtle);
  border: 1px solid var(--color-hairline);
  padding: 2px 6px;
  vertical-align: super;
  letter-spacing: 0.05em;
}

.commission-p {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  line-height: 1.95;
  color: var(--color-ink-text);
  margin-bottom: 18px;
  text-indent: 2em;
  text-align: justify;
}

.commission-p strong {
  color: var(--color-ink-deep);
  font-weight: 700;
}

.commission-quote-box {
  border-left: 2px solid var(--color-ink-deep);
  background: var(--color-paper-subtle);
  padding: 14px 20px;
  margin: 18px 0;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--color-ink-deep);
}

.commission-footer-notes {
  border-top: 1px solid var(--color-hairline);
  padding-top: 14px;
  margin-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-ink-light);
  font-family: var(--font-mono);
}

/* ==========================================================================
   2. 信任：客户名和四个数字
   ========================================================================== */
.trust-section {
  padding: 48px 0;
  border-bottom: 1px solid var(--color-hairline);
  background: var(--color-paper-pure);
}

.trust-brands-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px dashed var(--color-hairline);
}

.trust-brand-item {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-ink-muted);
  letter-spacing: 0.05em;
}

.metrics-4-col {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 800px) {
  .metrics-4-col {
    grid-template-columns: repeat(2, 1fr);
  }
}

.metric-card {
  padding: 16px;
  border-left: 1px solid var(--color-ink-deep);
}

.metric-number {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
  color: var(--color-ink-deep);
  margin-bottom: 8px;
}

.metric-label {
  font-size: 0.88rem;
  color: var(--color-ink-muted);
  line-height: 1.5;
}

/* ==========================================================================
   3. 能力：4 列 × 2 行，只有图标、标题和两行字
   ========================================================================== */
.capabilities-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--color-hairline);
}

.section-head-bar {
  margin-bottom: 40px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent-coral);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-h2 {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  line-height: 1.3;
}

.cap-grid-4x2 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 960px) {
  .cap-grid-4x2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 520px) {
  .cap-grid-4x2 {
    grid-template-columns: 1fr;
  }
}

.cap-item-box {
  background: var(--color-paper-pure);
  border: 1px solid var(--color-hairline);
  padding: 24px;
  transition: border-color 0.2s ease;
}

.cap-item-box:hover {
  border-color: var(--color-ink-deep);
}

.cap-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-paper-subtle);
  color: var(--color-ink-deep);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
}

.cap-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  margin-bottom: 8px;
}

.cap-two-lines {
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  line-height: 1.6;
}

/* ==========================================================================
   4. 目录：两组，每组 3 张卡，带状态和「试用 / 文档」
   ========================================================================== */
.catalog-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--color-hairline);
  background: var(--color-paper-pure);
}

.catalog-group-block {
  margin-bottom: 40px;
}

.catalog-group-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  border-bottom: 1px solid var(--color-hairline);
  padding-bottom: 10px;
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.catalog-cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 860px) {
  .catalog-cards-3 {
    grid-template-columns: 1fr;
  }
}

.catalog-card {
  border: 1px solid var(--color-hairline);
  background: var(--color-paper-bg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-top-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.status-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 2px 8px;
  background: var(--color-paper-pure);
  border: 1px solid var(--color-hairline);
  color: var(--color-ink-muted);
}

.status-badge.active {
  border-color: var(--color-accent-coral);
  color: var(--color-accent-coral);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  margin-bottom: 10px;
}

.card-summary {
  font-size: 0.88rem;
  color: var(--color-ink-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
}

.card-actions-bar {
  display: flex;
  gap: 12px;
  border-top: 1px solid var(--color-hairline);
  padding-top: 14px;
}

.card-btn-action {
  font-size: 0.82rem;
  font-family: var(--font-serif);
  font-weight: 600;
  padding: 6px 14px;
  border: 1px solid var(--color-ink-deep);
  background: transparent;
  color: var(--color-ink-deep);
  transition: all 0.2s ease;
}

.card-btn-action:hover {
  background: var(--color-ink-deep);
  color: var(--color-paper-pure);
}

/* ==========================================================================
   5. 场景：3 列 × 2 行（合理插入 1.webp-4.webp）
   ========================================================================== */
.scenes-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--color-hairline);
}

.scenes-grid-3x2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 900px) {
  .scenes-grid-3x2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .scenes-grid-3x2 {
    grid-template-columns: 1fr;
  }
}

.scene-card {
  background: var(--color-paper-pure);
  border: 1px solid var(--color-hairline);
  display: flex;
  flex-direction: column;
}

.scene-image-wrapper {
  width: 100%;
  height: 190px;
  overflow: hidden;
  background: var(--color-paper-subtle);
  border-bottom: 1px solid var(--color-hairline);
}

.scene-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.scene-content {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.scene-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-accent-coral);
  margin-bottom: 6px;
}

.scene-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  margin-bottom: 8px;
}

.scene-desc {
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  line-height: 1.7;
}

/* ==========================================================================
   6. 演示：左边任务，右边结果
   ========================================================================== */
.demo-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--color-hairline);
  background: var(--color-paper-pure);
}

.demo-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

@media (max-width: 860px) {
  .demo-two-col {
    grid-template-columns: 1fr;
  }
}

.demo-card-pane {
  border: 1px solid var(--color-hairline);
  padding: 28px;
  background: var(--color-paper-bg);
}

.demo-pane-head {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-accent-coral);
  border-bottom: 1px solid var(--color-hairline);
  padding-bottom: 8px;
  margin-bottom: 16px;
}

.demo-task-h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.demo-output-quote {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--color-ink-text);
  background: var(--color-paper-pure);
  border: 1px solid var(--color-hairline);
  padding: 20px;
  margin-top: 12px;
}

/* ==========================================================================
   7. 开发者：左边卖点，右边可切换的代码
   ========================================================================== */
.dev-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--color-hairline);
}

.dev-two-col {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
}

@media (max-width: 880px) {
  .dev-two-col {
    grid-template-columns: 1fr;
  }
}

.dev-points-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}

.dev-point-item {
  border-left: 2px solid var(--color-ink-deep);
  padding-left: 16px;
}

.dev-point-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  margin-bottom: 4px;
}

.dev-point-desc {
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  line-height: 1.6;
}

.code-window {
  background: var(--color-ink-deep);
  border: 1px solid var(--color-ink-deep);
  color: #eed8b8;
  overflow: hidden;
}

.code-tabs-nav {
  display: flex;
  background: #201e1b;
  border-bottom: 1px solid #38342f;
}

.code-tab-btn {
  padding: 10px 18px;
  background: transparent;
  border: none;
  color: #a89f92;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  cursor: pointer;
  border-right: 1px solid #38342f;
  transition: all 0.2s ease;
}

.code-tab-btn.active,
.code-tab-btn:hover {
  background: var(--color-ink-deep);
  color: #fff;
}

.code-body-pre {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  overflow-x: auto;
}

/* ==========================================================================
   8. 企业：3 列 × 2 行
   ========================================================================== */
.enterprise-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--color-hairline);
  background: var(--color-paper-pure);
}

.ent-grid-3x2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 900px) {
  .ent-grid-3x2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .ent-grid-3x2 {
    grid-template-columns: 1fr;
  }
}

.ent-card {
  border: 1px solid var(--color-hairline);
  padding: 24px;
  background: var(--color-paper-bg);
}

.ent-card-h4 {
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-ink-deep);
}

.ent-card-p {
  font-size: 0.86rem;
  color: var(--color-ink-muted);
  line-height: 1.7;
}

/* ==========================================================================
   9. 下载和帮助：各 5 列
   ========================================================================== */
.downloads-help-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--color-hairline);
}

.five-col-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  margin-top: 20px;
}

@media (max-width: 960px) {
  .five-col-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .five-col-grid {
    grid-template-columns: 1fr;
  }
}

.five-item-card {
  background: var(--color-paper-pure);
  border: 1px solid var(--color-hairline);
  padding: 18px;
  text-align: center;
}

.five-item-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-ink-deep);
}

.five-item-desc {
  font-size: 0.78rem;
  color: var(--color-ink-muted);
  line-height: 1.5;
}

/* ==========================================================================
   10. 问答：默认折叠，点开才看步骤
   ========================================================================== */
.faq-section {
  padding: 60px 0;
  border-bottom: 1px solid var(--color-hairline);
  background: var(--color-paper-pure);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 920px;
}

.faq-details {
  border: 1px solid var(--color-hairline);
  background: var(--color-paper-bg);
}

.faq-summary {
  padding: 18px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-ink-deep);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-toggle-icon {
  font-family: var(--font-mono);
  font-size: 1.2rem;
}

.faq-content-drawer {
  padding: 0 24px 20px;
  border-top: 1px dashed var(--color-hairline);
  margin-top: 6px;
}

.faq-step-line {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--color-ink-text);
  margin-top: 10px;
}

/* ==========================================================================
   11. 页脚：品牌说明加四列链接
   ========================================================================== */
.site-footer {
  padding: 64px 0 32px;
  background: #161514;
  color: #cfc8be;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}

@media (max-width: 960px) {
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.footer-brand-desc {
  font-size: 0.85rem;
  line-height: 1.8;
  color: #9d968b;
  padding-right: 24px;
}

.footer-col-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.08em;
  border-bottom: 1px solid #332f2b;
  padding-bottom: 8px;
  margin-bottom: 14px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-list a {
  font-size: 0.82rem;
  color: #a89f92;
  transition: color 0.2s ease;
}

.footer-links-list a:hover {
  color: #fff;
}

.footer-bottom-row {
  border-top: 1px solid #2b2825;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: #6b665e;
  font-family: var(--font-mono);
}