/* ====================================================================
   wycloud (wycloud.autos) - 核心样式表 (BEM 命名规范)
   设计规范：Layer 1.5 — Luxury Fashion Editorial Conversion UI
   配色体系：#F5F2ED (Background) / #181818 (Primary) / #77716B (Secondary)
             #8D2D32 (Accent) / #E8E2DA (Surface)
   ==================================================================== */

:root {
  --bg-page: #F5F2ED;
  --bg-surface: #E8E2DA;
  --bg-paper: #FAF8F5;
  --bg-accent-soft: #F3E5E6;
  --bg-dark: #181818;
  --text-primary: #181818;
  --text-secondary: #4A4540;
  --text-muted: #6E6862;
  --editorial-secondary: #77716B;
  --border-color: #CEC6BC;
  --border-ink: #181818;
  --accent-primary: #8D2D32;
  --accent-hover: #6B1F23;
  --status-teal: #8D2D32;
  --font-serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --container-max: 1200px;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-page);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-page);
  color: var(--text-primary);
}

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

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.28s ease, background-color 0.28s ease, border-color 0.28s ease;
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
}

ul,
ol {
  list-style: none;
}

.layout-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ====================================================================
   HEADER (画报刊头风格 · 吸顶固定 + 半透明亚麻肌理模糊)
   ==================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(245, 242, 237, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-ink);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 1.25rem;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.06em;
  min-height: 44px;
}

.site-header__brand:hover {
  color: var(--accent-primary);
}

.site-header__brand-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.site-header__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0.5rem;
  background: var(--bg-paper);
  border: 1px solid var(--border-ink);
  color: var(--text-primary);
  cursor: pointer;
}

.site-header__nav {
  display: none;
  position: absolute;
  top: 74px;
  left: 0;
  right: 0;
  background-color: var(--bg-page);
  border-bottom: 1px solid var(--border-ink);
  padding: 1.25rem 1.5rem;
}

.site-header__nav--open {
  display: block;
}

.site-header__menu {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-header__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.75rem;
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  position: relative;
}

.site-header__link::after {
  content: "";
  position: absolute;
  left: 0.75rem;
  right: 0.75rem;
  bottom: 8px;
  height: 1px;
  background-color: var(--accent-primary);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}

.site-header__link:hover::after,
.site-header__link--active::after {
  transform: scaleX(1);
}

.site-header__link:hover,
.site-header__link--active {
  color: var(--accent-primary);
}

.site-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1.35rem;
  background-color: var(--accent-primary);
  color: #FAF8F5;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border: 1px solid var(--accent-primary);
  transition: background-color 0.28s ease, color 0.28s ease;
}

.site-header__cta:hover {
  background-color: var(--text-primary);
  border-color: var(--text-primary);
  color: #FAF8F5;
}

@media (min-width: 768px) {
  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    display: flex;
    position: static;
    background: transparent;
    border-bottom: none;
    padding: 0;
    align-items: center;
    gap: 1.75rem;
  }

  .site-header__menu {
    flex-direction: row;
    align-items: center;
    gap: 0.35rem;
  }
}

/* ====================================================================
   BUTTONS (克制下划线与高对比深酒红/墨黑转换)
   ==================================================================== */
.btn-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0.8rem 2rem;
  font-size: 0.96rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-align: center;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.btn-action--primary {
  background-color: var(--accent-primary);
  color: #FAF8F5;
  border-color: var(--accent-primary);
}

.btn-action--primary:hover {
  background-color: var(--text-primary);
  border-color: var(--text-primary);
  color: #FAF8F5;
}

.btn-action--secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-ink);
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-thickness: 1px;
}

.btn-action--secondary:hover {
  background-color: var(--text-primary);
  color: #FAF8F5;
  text-decoration: none;
}

.btn-action--block {
  width: 100%;
}

/* ====================================================================
   HERO PANEL (不对称时尚画报封面排版)
   ==================================================================== */
.hero-panel {
  padding: 3.5rem 0 4.5rem;
  border-bottom: 1px solid var(--border-ink);
  background-color: var(--bg-page);
}

.hero-panel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: stretch;
}

.hero-panel__status {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.35rem 0.85rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.hero-panel__status-dot {
  width: 7px;
  height: 7px;
  background-color: var(--accent-primary);
  border-radius: 50%;
}

.hero-panel__title {
  font-family: var(--font-serif);
  font-size: clamp(2.15rem, 4.8vw, 3.45rem);
  line-height: 1.18;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 1.35rem;
}

.hero-panel__subtitle {
  font-size: 1.08rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2.25rem;
  max-width: 54ch;
}

.hero-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-panel__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  border-top: 1px solid var(--border-ink);
  border-bottom: 1px solid var(--border-color);
  background-color: transparent;
}

.hero-panel__fact-item {
  padding: 1rem 0.75rem 1rem 0;
  border-right: 1px solid var(--border-color);
  padding-right: 1rem;
  margin-right: 0.75rem;
}

.hero-panel__fact-item:last-child {
  border-right: none;
}

.hero-panel__fact-label {
  display: block;
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.hero-panel__fact-val {
  font-family: var(--font-serif);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
}

.hero-panel__diagram {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-ink);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.hero-panel__diagram svg {
  transition: transform 0.6s ease;
}

.hero-panel__diagram:hover svg {
  transform: scale(1.018);
}

.hero-panel__diagram-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.85rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

@media (min-width: 960px) {
  .hero-panel {
    padding: 5rem 0 5.5rem;
  }

  .hero-panel__grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
  }
}

/* ====================================================================
   SECTIONS & EDITORIAL HEADINGS
   ==================================================================== */
.page-section {
  padding: 4.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

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

.section-header {
  max-width: 720px;
  margin-bottom: 3rem;
  padding-left: 1.25rem;
  border-left: 3px solid var(--accent-primary);
}

.section-header__title {
  font-family: var(--font-serif);
  font-size: clamp(1.65rem, 3.4vw, 2.35rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.26;
  margin-bottom: 0.75rem;
}

.section-header__desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ====================================================================
   1. FEATURES (画报专题跨页网格 - 6 张)
   ==================================================================== */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  background-color: var(--border-ink);
  gap: 1px;
  border: 1px solid var(--border-ink);
}

.feature-grid__item {
  background-color: var(--bg-paper);
  padding: 2.25rem 1.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: background-color 0.3s ease;
}

.feature-grid__item:hover {
  background-color: #FFFFFF;
}

.feature-grid__icon-box {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-surface);
  color: var(--accent-primary);
  border: 1px solid var(--border-color);
}

.feature-grid__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-grid__text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ====================================================================
   2. SCENARIOS (不对称杂志特辑卡片 - 4 张)
   ==================================================================== */
.scenario-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.scenario-board__card {
  background-color: var(--bg-paper);
  border: 1px solid var(--border-ink);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.3s ease;
}

.scenario-board__card:hover {
  border-color: var(--accent-primary);
}

.scenario-board__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.scenario-board__title {
  font-family: var(--font-serif);
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--text-primary);
}

.scenario-board__device {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.7rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.scenario-board__desc {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

@media (min-width: 768px) {
  .scenario-board {
    grid-template-columns: 1.15fr 0.85fr;
  }
  .scenario-board__card:nth-child(3) {
    grid-column: span 1;
  }
}

/* ====================================================================
   3. STREAMING & 4. AI TOOLS MATRIX (精选名录陈列)
   ==================================================================== */
.platform-matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background-color: var(--border-color);
  border: 1px solid var(--border-ink);
}

.platform-matrix__cell {
  background-color: var(--bg-paper);
  padding: 1.65rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background-color 0.3s ease;
}

.platform-matrix__cell:hover {
  background-color: #FFFFFF;
}

.platform-matrix__head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.platform-matrix__icon {
  width: 22px;
  height: 22px;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.platform-matrix__name {
  font-family: var(--font-serif);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-primary);
}

.platform-matrix__note {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.platform-notice {
  margin-top: 1.15rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}

@media (min-width: 768px) {
  .platform-matrix {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ====================================================================
   5. BENEFITS (底层架构专栏排版)
   ==================================================================== */
.arch-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.arch-panel__item {
  background-color: var(--bg-paper);
  border: 1px solid var(--border-color);
  border-top: 3px solid var(--text-primary);
  padding: 1.85rem 1.65rem;
}

.arch-panel__title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
}

.arch-panel__desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

@media (min-width: 768px) {
  .arch-panel {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ====================================================================
   6. PRICING DECK (典藏画册式三档订阅卡)
   ==================================================================== */
.pricing-deck {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: stretch;
}

.price-card {
  background-color: var(--bg-paper);
  border: 1px solid var(--border-color);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: border-color 0.3s ease;
}

.price-card--featured {
  border: 2px solid var(--accent-primary);
  background-color: #FFFFFF;
}

.price-card__badge {
  display: inline-block;
  align-self: flex-start;
  background-color: var(--accent-primary);
  color: #FAF8F5;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.75rem;
  margin-bottom: 0.85rem;
}

.price-card__audience {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.price-card__name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
}

.price-card__price {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  padding-bottom: 1.35rem;
  margin-bottom: 1.35rem;
  border-bottom: 1px solid var(--border-color);
}

.price-card__amount {
  font-family: var(--font-serif);
  font-size: 2.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.price-card__period {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.price-card__features {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2.25rem;
}

.price-card__feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.94rem;
  color: var(--text-secondary);
}

.price-card__check {
  width: 18px;
  height: 18px;
  color: var(--accent-primary);
  flex-shrink: 0;
  margin-top: 0.25rem;
}

@media (min-width: 900px) {
  .pricing-deck {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ====================================================================
   7. FAQ ACCORDION (极简画报问答栏)
   ==================================================================== */
.faq-list {
  max-width: 860px;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-ink);
}

.faq-list__item {
  background-color: transparent;
  border-bottom: 1px solid var(--border-color);
}

.faq-list__question {
  width: 100%;
  min-height: 60px;
  padding: 1.25rem 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-serif);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-primary);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
}

.faq-list__question:hover {
  color: var(--accent-primary);
}

.faq-list__indicator {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.faq-list__answer {
  padding: 0 0.5rem 1.5rem;
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.faq-list__answer[hidden] {
  display: none;
}

/* ====================================================================
   FINAL CTA BANNER (深墨黑与酒红画报封底)
   ==================================================================== */
.final-banner {
  background-color: var(--bg-dark);
  color: #FAF8F5;
  padding: 4.5rem 0;
}

.final-banner__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  border: 1px solid #3A3632;
  padding: 2.75rem 2.25rem;
  background-color: #201E1C;
}

.final-banner__title {
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  font-weight: 700;
  color: #FAF8F5;
  margin-bottom: 0.6rem;
}

.final-banner__sub {
  font-size: 1rem;
  color: #D5CFC7;
}

@media (min-width: 768px) {
  .final-banner__inner {
    flex-direction: row;
    align-items: center;
  }
}

/* ====================================================================
   FOOTER (极简刊尾导航与联盟披露)
   ==================================================================== */
.site-footer {
  background-color: var(--bg-page);
  border-top: 1px solid var(--border-ink);
  padding: 3rem 0 5.5rem;
  margin-top: auto;
}

@media (min-width: 768px) {
  .site-footer {
    padding: 3rem 0;
  }
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.site-footer__link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.site-footer__link:hover {
  color: var(--accent-primary);
}

.site-footer__disclosure {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.site-footer__copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ====================================================================
   移动端吸底 CTA (仅移动端显示，不遮挡页脚)
   ==================================================================== */
.sticky-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background-color: rgba(24, 24, 24, 0.96);
  border-top: 1px solid #3A3632;
  padding: 0.65rem 1.15rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  transform: translateY(100%);
  transition: transform 0.25s ease;
}

.sticky-bar--visible {
  transform: translateY(0);
}

.sticky-bar__text {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 600;
  color: #FAF8F5;
}

.sticky-bar__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1.35rem;
  background-color: var(--accent-primary);
  color: #FAF8F5;
  font-size: 0.92rem;
  font-weight: 600;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .sticky-bar {
    display: none;
  }
}

/* ====================================================================
   GUIDES & ARTICLES & LEGAL PAGES (杂志专栏排版)
   ==================================================================== */
.breadcrumb-bar {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0.8rem 0;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.breadcrumb-bar__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.guide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.guide-card {
  background-color: var(--bg-paper);
  border: 1px solid var(--border-ink);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.guide-card__thumb {
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  padding: 1.25rem;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.guide-card__thumb svg {
  transition: transform 0.5s ease;
}

.guide-card:hover .guide-card__thumb svg {
  transform: scale(1.03);
}

.guide-card__body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.guide-card__meta {
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  display: flex;
  gap: 1rem;
}

.guide-card__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
  line-height: 1.38;
}

.guide-card__excerpt {
  font-size: 0.94rem;
  color: var(--text-secondary);
  margin-bottom: 1.35rem;
  flex: 1;
}

.guide-card__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: 600;
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
}

@media (min-width: 768px) {
  .guide-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .guide-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-shell {
  padding: 3rem 0 4.5rem;
}

.article-content {
  max-width: 820px;
  margin: 0 auto;
  background-color: var(--bg-paper);
  border: 1px solid var(--border-ink);
  padding: 2.25rem 1.5rem;
}

@media (min-width: 768px) {
  .article-content {
    padding: 3.5rem;
  }
}

.article-content h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.4vw, 2.4rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.28;
  margin-bottom: 1rem;
}

.article-meta {
  font-size: 0.86rem;
  color: var(--text-muted);
  padding-bottom: 1.25rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.article-content h2 {
  font-family: var(--font-serif);
  font-size: 1.42rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 2.25rem 0 0.95rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.6rem 0 0.65rem;
}

.article-content p {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 1.2rem;
}

.article-content ul,
.article-content ol {
  margin: 0 0 1.35rem 1.35rem;
  color: var(--text-secondary);
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 0.55rem;
  line-height: 1.75;
}

.article-cta-box {
  margin: 2.5rem 0;
  padding: 2rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-ink);
  border-left: 4px solid var(--accent-primary);
}

.article-cta-box__title {
  font-family: var(--font-serif);
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.article-related {
  margin-top: 2.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.article-related__list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-top: 0.85rem;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}