/* ==================================================
   蛙爪云 (Wazhuayun) - 第3套 抽屉索引系统 (Drawer Index System)
   主配色: 珍珠灰 #F5F5F7, 纯白 #FFFFFF, 深梅紫 #574A5F, 灰蓝 #6E7985, 铜棕 #A27558
   ================================================== */

:root {
  --bg: #F5F5F7;
  --surface: #FFFFFF;
  --surface-soft: #F0F0F3;
  --text: #28262D;
  --body: #64616A;
  --muted: #918D96;
  
  --plum: #574A5F;
  --plum-gray: #73667A;
  --plum-soft: #EEEAF0;
  
  --graphite: #414047;
  
  --blue-gray: #6E7985;
  --blue-gray-dark: #59636D;
  --blue-gray-soft: #EDF0F3;
  
  --copper: #A27558;
  --copper-dark: #80583F;
  --copper-soft: #F4ECE6;
  
  --border: #DBDADF;
  --border-dark: #C8C6CD;
  --radius: 6px;
  --max-width: 1200px;
  --header-height: 72px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background-color: var(--bg);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

a {
  color: var(--plum);
  text-decoration: none;
  transition: var(--transition);
}

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

h1, h2, h3, h4, h5, h6 {
  color: var(--text);
  font-weight: 700;
  line-height: 1.35;
}

h1 { font-size: 2.75rem; margin-bottom: 1.25rem; }
h2 { font-size: 2rem; margin-bottom: 1rem; }
h3 { font-size: 1.4rem; margin-bottom: 0.75rem; }

p {
  margin-bottom: 1.25rem;
}

ul, ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

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

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

/* Helper Classes & Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Focus Visible */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Standard Buttons & CTAs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: var(--transition);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--graphite);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.btn-copper {
  background-color: var(--copper);
  color: #FFFFFF;
}

.btn-copper:hover {
  background-color: var(--copper-dark);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--surface-soft);
  color: var(--text);
  border: 1px solid var(--border);
}

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

.btn-arrow::after {
  content: "→";
  display: inline-block;
  transition: transform 0.2s ease;
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* ==================================================
   Header & Navigation (抽屉索引 Header)
   ================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(245, 245, 247, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Abstract WZY Logo with Tab extension */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.logo-wzy {
  display: inline-flex;
  align-items: center;
  background: var(--plum);
  color: #FFFFFF;
  font-weight: 900;
  font-size: 1.1rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  position: relative;
  letter-spacing: 0.5px;
}

.logo-tag {
  display: inline-block;
  background: var(--copper);
  color: #FFFFFF;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.4rem;
  margin-left: 0.4rem;
  border-radius: 2px;
  position: relative;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
}

.brand-subtext {
  font-size: 0.8rem;
  color: var(--muted);
  border-left: 1px solid var(--border);
  padding-left: 0.75rem;
  display: none;
}

@media (min-width: 1200px) {
  .brand-subtext {
    display: inline-block;
  }
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--body);
  position: relative;
  padding: 0.4rem 0.25rem;
}

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

.nav-link.active {
  color: var(--plum);
  font-weight: 700;
}

/* Active tab tag indicator extension */
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--plum);
  border-radius: 2px;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  color: var(--text);
  padding: 0.5rem;
}

/* Mobile Nav Modal / Drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background-color: var(--bg);
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  overflow-y: auto;
  z-index: 999;
}

.mobile-nav.open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav-link {
  display: block;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  padding: 0.75rem;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-left: 4px solid var(--plum);
}

/* ==================================================
   Hero Section (多层任务抽屉 Hero)
   ================================================== */
.hero-section {
  padding: 3.5rem 0 4rem;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.hero-header-box {
  max-width: 850px;
  margin: 0 auto 3rem;
  text-align: center;
}

.hero-brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--plum-soft);
  color: var(--plum);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  margin-bottom: 1rem;
}

.hero-title {
  font-size: 2.5rem;
  color: var(--text);
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
}

.hero-subhead {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--plum);
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--body);
  max-width: 760px;
  margin: 0 auto 2rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Staggered Drawer Hero Container */
.hero-drawers-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 1100px;
  margin: 0 auto;
}

/* Base Drawer Layer Class */
.drawer-layer {
  position: relative;
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  border-left: 4px solid var(--plum);
  padding: 1.25rem 1.5rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-radius: 4px;
}

.drawer-layer:hover {
  transform: translateX(4px);
  border-color: var(--border-dark);
}

/* Staggered Widths & Offsets for Hero Drawers (Desktop) */
.hero-drawer-1 { width: 88%; margin-left: 0; background-color: var(--surface); border-left-color: var(--plum); }
.hero-drawer-2 { width: 74%; margin-left: 5%; background-color: var(--plum-soft); border-left-color: var(--plum-gray); }
.hero-drawer-3 { width: 82%; margin-left: 2%; background-color: var(--blue-gray-soft); border-left-color: var(--blue-gray); }
.hero-drawer-4 { width: 68%; margin-left: 10%; background-color: var(--copper-soft); border-left-color: var(--copper); }
.hero-drawer-5 { width: 78%; margin-left: 1%; background-color: var(--surface-soft); border-left-color: var(--graphite); }
.hero-drawer-6 { width: 62%; margin-left: 6%; background-color: var(--plum-soft); border-left-color: var(--plum); }

.drawer-side-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: #FFFFFF;
  background-color: var(--plum);
  border-radius: 3px;
  min-width: 90px;
  text-align: center;
  flex-shrink: 0;
}

.tag-copper { background-color: var(--copper); }
.tag-blue-gray { background-color: var(--blue-gray); }
.tag-graphite { background-color: var(--graphite); }

.drawer-main-info {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.drawer-task-num {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--muted);
  font-mono: monospace;
}

.drawer-task-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.drawer-task-content {
  font-size: 0.95rem;
  color: var(--body);
  font-weight: 600;
}

.drawer-task-sub {
  font-size: 0.85rem;
  color: var(--muted);
}

.drawer-action-link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--plum);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
}

.drawer-action-link:hover {
  color: var(--copper);
}

/* ==================================================
   General Task Sections Styling
   ================================================== */
.task-section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border);
}

.task-section:nth-child(even) {
  background-color: var(--surface-soft);
}

.task-section:nth-child(odd) {
  background-color: var(--bg);
}

.section-header-box {
  margin-bottom: 2.5rem;
}

.section-tag-num {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--copper);
  letter-spacing: 1px;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2rem;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.section-direct-answer {
  background-color: var(--plum-soft);
  border-left: 4px solid var(--plum);
  padding: 1rem 1.25rem;
  font-size: 1.05rem;
  color: var(--plum-gray);
  font-weight: 600;
  border-radius: 0 4px 4px 0;
  margin-top: 1rem;
}

/* Staggered Index Layer Lists */
.staggered-index-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.index-layer-item {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: 4px;
  transition: var(--transition);
}

.index-layer-item:hover {
  border-color: var(--border-dark);
}

/* Varied widths for Section 01, 02, 04, 05, 08, 09 */
.layer-w-90 { width: 92%; margin-left: 0; }
.layer-w-80 { width: 84%; margin-left: 4%; }
.layer-w-85 { width: 88%; margin-left: 1%; }
.layer-w-75 { width: 78%; margin-left: 6%; }

.layer-item-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.layer-item-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.layer-item-body {
  font-size: 0.95rem;
  color: var(--body);
  line-height: 1.75;
}

/* Key Highlight Item (e.g. Hong Kong Node) */
.layer-highlight {
  background-color: var(--plum-soft);
  border-left: 5px solid var(--plum);
}

.layer-highlight .layer-item-title {
  font-size: 1.35rem;
  color: var(--plum);
}

/* ==================================================
   Section 03: Lines Table Styling (线路 HTML 表格)
   ================================================== */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin-top: 1.5rem;
}

.lines-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  background-color: var(--surface);
  border-top: 2px solid var(--plum);
  border-bottom: 2px solid var(--plum);
}

.lines-table th, .lines-table td {
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.lines-table th {
  background-color: var(--plum-soft);
  color: var(--plum);
  font-weight: 700;
  font-size: 0.95rem;
}

.lines-table td {
  font-size: 0.95rem;
  color: var(--body);
}

.lines-table td strong {
  color: var(--text);
}

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

/* ==================================================
   Section 10: Task Review Summary (蛙爪云任务型评测)
   ================================================== */
.review-summary-drawer {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-left: 5px solid var(--copper);
  padding: 2rem;
  border-radius: 4px;
}

.review-staggered-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 2rem;
}

.review-short-layer {
  background: var(--bg);
  border: 1px solid var(--border);
  border-top: 3px solid var(--plum);
  padding: 1rem 1.25rem;
  border-radius: 4px;
}

.review-short-layer h4 {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.review-short-layer p {
  font-size: 0.85rem;
  color: var(--body);
  margin-bottom: 0;
}

/* ==================================================
   Section 11: Pricing Drawers (完整方案抽屉)
   ================================================== */
.pricing-drawers-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
}

.pricing-drawer-layer {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  transition: var(--transition);
}

.pricing-drawer-layer:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}

/* Pricing Layer Staggered Styling & Colors */
.price-layer-primary {
  width: 96%;
  margin-left: 0;
  background-color: var(--plum-soft);
  border: 2px solid var(--plum);
  border-left-width: 6px;
}

.price-layer-daily {
  width: 88%;
  margin-left: 4%;
  background-color: var(--blue-gray-soft);
  border-left: 5px solid var(--blue-gray);
}

.price-layer-light {
  width: 82%;
  margin-left: 1%;
  background-color: var(--surface);
  border-left: 5px solid var(--border-dark);
}

.price-layer-high {
  width: 90%;
  margin-left: 6%;
  background-color: var(--surface-soft);
  border-left: 5px solid var(--graphite);
}

.price-layer-yearly {
  width: 84%;
  margin-left: 2%;
  background-color: var(--copper-soft);
  border-left: 5px solid var(--copper);
}

.price-info-group {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.price-title-box h3 {
  font-size: 1.3rem;
  margin-bottom: 0.2rem;
}

.price-volume {
  font-size: 1rem;
  font-weight: 700;
  color: var(--plum);
}

.price-tag-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #FFFFFF;
  background-color: var(--copper);
  border-radius: 3px;
  margin-bottom: 0.4rem;
}

.price-amount-box {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--text);
  white-space: nowrap;
}

.price-amount-box span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
}

.price-suitable-text {
  font-size: 0.9rem;
  color: var(--body);
  max-width: 280px;
}

/* ==================================================
   Section 12: Article Index Cabinet (任务文章索引)
   ================================================== */
.task-articles-cabinet {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-top: 2rem;
}

.article-task-group {
  background-color: var(--surface);
  border-top: 2px solid var(--plum);
  border-bottom: 1px solid var(--border);
  padding: 1.75rem;
  border-radius: 4px;
}

.group-header-tag {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
}

.group-header-tag h3 {
  font-size: 1.25rem;
  color: var(--plum);
  margin-bottom: 0;
}

.article-task-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.article-task-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 1.25rem;
  background-color: var(--bg);
  border-left: 3px solid var(--border);
  border-radius: 0 4px 4px 0;
  transition: var(--transition);
}

.article-task-item:hover {
  background-color: var(--plum-soft);
  border-left-color: var(--plum);
}

.article-item-main {
  flex: 1;
}

.article-item-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.3rem;
  display: block;
}

.article-item-title:hover {
  color: var(--plum);
}

.article-item-answer {
  font-size: 0.88rem;
  color: var(--body);
  margin-bottom: 0.4rem;
}

.article-item-meta {
  font-size: 0.8rem;
  color: var(--muted);
  display: flex;
  gap: 1rem;
}

/* ==================================================
   Section 13: FAQ Section (任务问答索引)
   ================================================== */
.faq-index-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.faq-drawer-item {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--plum);
  border-radius: 4px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-drawer-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  gap: 1rem;
}

.faq-drawer-btn:hover {
  background-color: var(--plum-soft);
}

.faq-tag-prefix {
  font-size: 0.8rem;
  font-weight: 800;
  color: #FFFFFF;
  background-color: var(--plum-gray);
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  flex-shrink: 0;
}

.faq-drawer-icon {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--plum);
  transition: transform 0.25s ease;
}

.faq-drawer-item.active .faq-drawer-icon {
  transform: rotate(45deg);
}

.faq-drawer-content {
  display: none;
  padding: 0 1.5rem 1.25rem 1.5rem;
  font-size: 0.95rem;
  color: var(--body);
  line-height: 1.8;
  border-top: 1px dashed var(--border);
  margin-top: 0.5rem;
  padding-top: 1rem;
}

.faq-drawer-item.active .faq-drawer-content {
  display: block;
}

/* ==================================================
   Article & Category Page Specific Styles
   ================================================== */
.page-container {
  padding: 3rem 0 5rem;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.breadcrumb-nav a {
  color: var(--body);
}

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

.breadcrumb-separator {
  color: var(--muted);
}

.article-layout-grid {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 992px) {
  .article-layout-grid {
    grid-template-columns: 1fr;
  }
}

.article-main-content {
  max-width: 800px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  padding: 2.5rem;
  border-radius: 6px;
}

.article-header {
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
}

.article-category-badge {
  display: inline-block;
  background-color: var(--plum-soft);
  color: var(--plum);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 3px;
  margin-bottom: 0.75rem;
}

.article-title {
  font-size: 2.2rem;
  color: var(--text);
  margin-bottom: 1rem;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.85rem;
  color: var(--muted);
  flex-wrap: wrap;
}

/* Quick Conclusion Block (快速结论) */
.quick-conclusion-box {
  background-color: var(--plum-soft);
  border-left: 5px solid var(--plum);
  padding: 1.5rem;
  border-radius: 0 4px 4px 0;
  margin-bottom: 2.5rem;
}

.quick-conclusion-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--plum);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.quick-conclusion-text {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 0;
  line-height: 1.8;
}

.article-body h2 {
  font-size: 1.6rem;
  color: var(--text);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--plum-soft);
  padding-bottom: 0.4rem;
}

.article-body h3 {
  font-size: 1.25rem;
  color: var(--text);
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

.article-body p {
  font-size: 1rem;
  color: var(--body);
  line-height: 1.85;
  margin-bottom: 1.25rem;
}

.article-body ol, .article-body ul {
  margin-bottom: 1.5rem;
}

.article-body li {
  margin-bottom: 0.6rem;
  line-height: 1.8;
}

/* Article Sidebar Table of Contents */
.toc-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 2rem);
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--plum);
  padding: 1.25rem;
  border-radius: 4px;
}

.toc-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc-link {
  font-size: 0.85rem;
  color: var(--body);
  line-height: 1.4;
  display: block;
}

.toc-link:hover {
  color: var(--plum);
}

/* Navigation Section within Article (下一步任务 & 相关阅读) */
.article-nav-block {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 2px dashed var(--border);
}

.nav-block-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
}

.related-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.related-link-card {
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--blue-gray);
  padding: 1rem;
  border-radius: 4px;
  transition: var(--transition);
}

.related-link-card:hover {
  background-color: var(--surface-soft);
  border-left-color: var(--plum);
}

.related-link-card h4 {
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}

.related-link-card p {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0;
}

/* ==================================================
   Footer (深梅紫任务索引 Footer)
   ================================================== */
.site-footer {
  background-color: var(--plum);
  color: #FBFAFC;
  padding: 4rem 0 2rem;
  margin-top: auto;
  border-top: 3px solid var(--copper);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr) 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand-col p {
  color: #D6D0D9;
  font-size: 0.9rem;
  margin-top: 1rem;
  line-height: 1.7;
}

.footer-col-title {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-col-title::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 14px;
  background-color: var(--copper);
  border-radius: 1px;
}

.footer-links-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links-list a {
  color: #D6D0D9;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links-list a:hover {
  color: #FFFFFF;
  padding-left: 3px;
}

/* Friendly Links Section */
.friendly-links-block {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.75rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.friendly-links-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--copper-soft);
  white-space: nowrap;
}

.friendly-links-items {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.friendly-links-items a {
  color: #D6D0D9;
  font-size: 0.85rem;
}

.friendly-links-items a:hover {
  color: #FFFFFF;
}

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #D6D0D9;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==================================================
   Responsive Media Queries (375px, 390px, 430px, 768px, 1024px)
   ================================================== */
@media (max-width: 1024px) {
  .footer-top-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  /* Hide Desktop Nav */
  .nav-desktop {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-title {
    font-size: 1.85rem;
  }
  
  .hero-subhead {
    font-size: 1.1rem;
  }
  
  /* Mobile Staggered Offsets: 100% Width to Prevent Overflow */
  .hero-drawer-1, .hero-drawer-2, .hero-drawer-3, 
  .hero-drawer-4, .hero-drawer-5, .hero-drawer-6,
  .layer-w-90, .layer-w-80, .layer-w-85, .layer-w-75,
  .price-layer-primary, .price-layer-daily, .price-layer-light,
  .price-layer-high, .price-layer-yearly {
    width: 100% !important;
    margin-left: 0 !important;
  }

  .drawer-layer {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .pricing-drawer-layer {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .article-main-content {
    padding: 1.5rem;
  }

  .article-title {
    font-size: 1.65rem;
  }
}

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