/* ==========================================================================
   喵喵云 (imiaomiaoyun.lol) — LAYER 1.5: LUXURY WATCHMAKING CONVERSION UI
   精密制表工坊美学 · 曜石黑与香槟金 · 机芯规格表布局 · 系统衬线/无衬线字体栈
   ========================================================================== */

:root {
  --color-bg: #101010;
  --color-surface: #20201e;
  --color-surface-elevated: #272724;
  --color-surface-inset: #161615;
  --color-text: #e8e0d0;
  --color-text-muted: #c8beaa;
  --color-text-subtle: #9b8b70;
  --color-primary: #c6a66b;
  --color-primary-hover: #d8bc86;
  --color-primary-soft: rgba(198, 166, 107, 0.12);
  --color-accent-teal: #c6a66b;
  --color-border: rgba(198, 166, 107, 0.32);
  --color-border-light: rgba(155, 139, 112, 0.22);
  --font-serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --max-width: 1160px;
  --header-height: 68px;
}

*,
*::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(--color-text);
  background-color: var(--color-bg);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--color-bg);
  color: var(--color-text);
  background-image: radial-gradient(circle at 50% 0%, rgba(198, 166, 107, 0.07) 0%, transparent 55%);
}

main {
  flex: 1;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

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

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

img,
svg {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

ul,
ol {
  list-style-position: inside;
}

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

/* ==========================================================================
   Skip Link (无障碍跳转)
   ========================================================================== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  background-color: var(--color-primary);
  color: #101010;
  padding: 0.75rem 1.25rem;
  font-weight: 700;
}

.skip-link:focus {
  top: 0.75rem;
}

/* ==========================================================================
   Header & Navigation (精密腕表表冠式顶栏)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(16, 16, 16, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.08em;
  min-height: 44px;
  padding: 0.25rem 0;
}

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

.site-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background-color: var(--color-surface);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 700;
}

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

.site-header__nav {
  display: none;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1.25rem 1.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.65);
}

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

.site-header__menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-header__link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0.5rem 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
}

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

.site-header__cta {
  margin-top: 0.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.5rem 1.25rem;
  background-color: var(--color-primary);
  color: #101010 !important;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  border: 1px solid var(--color-primary);
}

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

@media (min-width: 768px) {
  .site-header__toggle {
    display: none;
  }
  .site-header__nav {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    position: static;
    background: transparent;
    border-bottom: none;
    padding: 0;
    box-shadow: none;
  }
  .site-header__menu {
    flex-direction: row;
    align-items: center;
    gap: 0.35rem;
  }
  .site-header__cta {
    margin-top: 0;
  }
}

/* ==========================================================================
   Buttons (Fine Metallic Border & Restrained Highlight Sweep)
   ========================================================================== */
.action-btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.8rem 1.75rem;
  font-size: 0.975rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  border: 1px solid var(--color-primary);
  cursor: pointer;
  text-align: center;
  transition: transform 0.25s ease, background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.action-btn::after {
  content: "";
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(232, 224, 208, 0.22), transparent);
  transform: skewX(-20deg);
  transition: left 0.55s ease;
  pointer-events: none;
}

.action-btn:hover::after {
  left: 140%;
}

.action-btn--primary {
  background-color: var(--color-primary);
  color: #101010;
  border-color: var(--color-primary);
}

.action-btn--primary:hover {
  background-color: var(--color-primary-hover);
  color: #101010;
  border-color: var(--color-primary-hover);
}

.action-btn--secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}

.action-btn--secondary:hover {
  background-color: var(--color-surface-elevated);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

/* ==========================================================================
   Hero Section (高级制表工坊留白 + 主视觉陀飞轮网络机芯校准仪)
   ========================================================================== */
.hero-panel {
  padding: 4rem 0 4.5rem;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

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

@media (min-width: 960px) {
  .hero-panel {
    padding: 5.5rem 0 6rem;
  }
  .hero-panel__grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 4rem;
  }
}

.hero-panel__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.95rem;
  background-color: var(--color-surface);
  color: var(--color-primary);
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  border: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
}

.hero-panel__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.2vw, 3rem);
  font-weight: 700;
  line-height: 1.26;
  color: var(--color-text);
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
}

.hero-panel__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  letter-spacing: 0.02em;
  margin-bottom: 2.25rem;
  max-width: 580px;
}

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

.hero-panel__trust {
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-light);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.85rem;
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  letter-spacing: 0.03em;
}

.hero-panel__trust-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.hero-panel__trust-dot {
  width: 7px;
  height: 7px;
  background-color: var(--color-primary);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.hero-panel__diagram {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  position: relative;
  transition: transform 0.35s ease, border-color 0.35s ease;
  will-change: transform;
}

.hero-panel__diagram::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 6px;
  right: 6px;
  bottom: 6px;
  border: 1px solid rgba(198, 166, 107, 0.14);
  pointer-events: none;
}

.hero-panel__diagram-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.85rem;
  margin-bottom: 1.15rem;
  border-bottom: 1px solid var(--color-border-light);
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-text-subtle);
}

.hero-panel__status-tag {
  color: var(--color-primary);
  font-weight: 700;
}

/* ==========================================================================
   Section Structural Layout
   ========================================================================== */
.section-block {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.section-block--surface {
  background-color: var(--color-surface-inset);
}

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

.section-block__header {
  max-width: 760px;
  margin-bottom: 3rem;
  border-left: 2px solid var(--color-primary);
  padding-left: 1.25rem;
}

.section-block__title {
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.section-block__desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* ==========================================================================
   Features (精密机芯规格卡 — Watch Specification Sheet Panels)
   ========================================================================== */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

.feature-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  position: relative;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.feature-card:hover {
  border-color: var(--color-primary);
}

.feature-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--color-border-light);
}

.feature-card__icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.feature-card__tag {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background-color: var(--color-bg);
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--color-border);
}

.feature-card__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-text);
}

.feature-card__desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Streaming & AI Support Specification Matrices
   ========================================================================== */
.platform-matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.15rem;
}

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

.platform-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: border-color 0.25s ease;
}

.platform-item:hover {
  border-color: var(--color-primary);
}

.platform-item__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.platform-item__icon {
  width: 26px;
  height: 26px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.platform-item__name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.platform-item__meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.platform-item__status {
  margin-top: auto;
  padding-top: 0.65rem;
  border-top: 1px solid var(--color-border-light);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

/* ==========================================================================
   Scenarios (Editorial Craftsmanship Panels)
   ========================================================================== */
.scenario-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 840px) {
  .scenario-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.scenario-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}

.scenario-card__audience {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  align-self: flex-start;
  padding: 0.25rem 0.75rem;
}

.scenario-card__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-text);
}

.scenario-card__device {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-subtle);
  padding: 0.5rem 0.85rem;
  background-color: var(--color-bg);
  border-left: 2px solid var(--color-primary);
}

.scenario-card__desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Benefits (Calibre Architecture Specification Table)
   ========================================================================== */
.benefit-table {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

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

.benefit-cell {
  padding: 2.25rem 1.85rem;
  border-bottom: 1px solid var(--color-border-light);
}

@media (min-width: 768px) {
  .benefit-cell {
    border-bottom: none;
    border-right: 1px solid var(--color-border-light);
  }
  .benefit-cell:last-child {
    border-right: none;
  }
}

.benefit-cell__title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.benefit-cell__text {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Pricing (Restrained Typography & Minimal Horological Framing)
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: stretch;
}

@media (min-width: 860px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.plan-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color 0.3s ease;
}

.plan-box--featured {
  background-color: var(--color-surface-elevated);
  border: 1.5px solid var(--color-primary);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.55);
}

.plan-box__ribbon {
  position: absolute;
  top: -13px;
  left: 2rem;
  background-color: var(--color-primary);
  color: #101010;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.22rem 0.85rem;
}

.plan-box__target {
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-text-subtle);
  margin-bottom: 0.45rem;
}

.plan-box__name {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-text);
  margin-bottom: 0.85rem;
}

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

.plan-box__amount {
  font-family: var(--font-serif);
  font-size: 2.35rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.plan-box__period {
  font-size: 0.875rem;
  color: var(--color-text-subtle);
}

.plan-box__features {
  list-style: none;
  margin-bottom: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.plan-box__feature-item {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.plan-box__check {
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* ==========================================================================
   FAQ Accordion
   ========================================================================== */
.faq-list {
  max-width: 860px;
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
}

.faq-item__summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  min-height: 54px;
  font-family: var(--font-serif);
  font-size: 1.075rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-text);
  cursor: pointer;
}

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

.faq-item__indicator {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.faq-item[open] .faq-item__indicator {
  transform: rotate(45deg);
}

.faq-item__answer {
  padding: 1rem 1.5rem 1.35rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border-light);
}

/* ==========================================================================
   Final CTA Banner
   ========================================================================== */
.cta-banner {
  padding: 4.25rem 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.cta-banner__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.75rem;
}

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

.cta-banner__title {
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 2.8vw, 1.95rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.cta-banner__sub {
  font-size: 1rem;
  color: var(--color-text-subtle);
}

/* ==========================================================================
   Guides List & Article Content Pages
   ========================================================================== */
.breadcrumb-bar {
  background-color: var(--color-surface-inset);
  border-bottom: 1px solid var(--color-border-light);
  padding: 0.85rem 0;
  font-size: 0.875rem;
}

.breadcrumb-bar__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-subtle);
}

.breadcrumb-bar__item + .breadcrumb-bar__item::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--color-border);
}

.guide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

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

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

.guide-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s ease;
}

.guide-card:hover {
  border-color: var(--color-primary);
}

.guide-card__thumb {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border-light);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.guide-card__body {
  padding: 1.65rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.guide-card__meta {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-subtle);
  margin-bottom: 0.75rem;
}

.guide-card__title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.45;
  letter-spacing: 0.02em;
}

.guide-card__title a {
  color: var(--color-text);
}

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

.guide-card__excerpt {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  margin-bottom: 1.35rem;
  flex: 1;
}

.guide-card__more {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

/* Article Single Layout */
.article-wrap {
  padding: 3rem 0 4.5rem;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 960px) {
  .article-layout {
    grid-template-columns: 1fr 310px;
  }
}

.article-main {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2.25rem 1.5rem;
}

@media (min-width: 640px) {
  .article-main {
    padding: 3rem;
  }
}

.article-main__header {
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--color-border-light);
}

.article-main__title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.03em;
  margin-bottom: 0.95rem;
  color: var(--color-text);
}

.article-main__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.875rem;
  color: var(--color-text-subtle);
}

.article-content h2 {
  font-family: var(--font-serif);
  font-size: 1.38rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-text);
  margin: 2.25rem 0 0.95rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border-light);
}

.article-content h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 1.5rem 0 0.65rem;
}

.article-content p {
  margin-bottom: 1.15rem;
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1.35rem;
  padding-left: 1rem;
  color: var(--color-text-muted);
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content__callout {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  padding: 1.25rem 1.35rem;
  margin: 1.65rem 0;
}

.article-cta-box {
  margin-top: 2.75rem;
  padding: 2rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-primary);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.article-cta-box__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-text);
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-widget {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.65rem;
}

.sidebar-widget__title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--color-border-light);
}

.sidebar-widget__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.sidebar-widget__link {
  display: block;
  padding: 0.35rem 0;
  font-size: 0.925rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.sidebar-widget__link:hover {
  color: var(--color-primary);
}

.sidebar-widget__desc {
  font-size: 0.9rem;
  color: var(--color-text-subtle);
  margin-bottom: 1rem;
}

/* ==========================================================================
   Footer & Sticky Mobile CTA
   ========================================================================== */
.site-footer {
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 5.5rem;
  font-size: 0.9rem;
  color: var(--color-text-subtle);
}

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

.site-footer__top {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  justify-content: space-between;
  padding-bottom: 1.65rem;
  border-bottom: 1px solid var(--color-border-light);
}

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

.site-footer__links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.35rem;
}

.site-footer__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.04em;
}

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

.site-footer__bottom {
  padding-top: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .site-footer__bottom {
    flex-direction: row;
  }
}

.mobile-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 990;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-primary);
  padding: 0.7rem 1.15rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.75);
  transform: translateY(110%);
  transition: transform 0.25s ease;
}

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

.mobile-sticky-bar__text {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.mobile-sticky-bar__btn {
  padding: 0.55rem 1.25rem;
  min-height: 44px;
  background-color: var(--color-primary);
  color: #101010 !important;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  border: 1px solid var(--color-primary);
  white-space: nowrap;
}

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