/* ==========================================================================
   钉钉官网 - 襟翼刻度主题样式表 (Wing Flap Gauge Theme)
   风格：襟翼刻度｜骨架：刻度+构型+速度+页脚
   配色：襟翼刻度深靛蓝 #243789 + 襟翼刻度辅浅紫 #DBCFE7
   背景：机翼蒙皮纹理 (Wing Skin Rivets & Metallic Panel Lines)
   字体：HarmonyOS Sans + Oswald
   ========================================================================== */

:root {
  --primary-deep: #243789;
  --primary-light: #DBCFE7;
  --primary-accent: #374ea8;
  --primary-dark-bg: #111b44;
  --flap-amber: #f7a01d;
  --flap-green: #2ec4b6;
  --bg-skin: #f4f3f8;
  --bg-card: #ffffff;
  --bg-card-hover: #f9f8fc;
  --text-main: #19234e;
  --text-muted: #515c82;
  --text-light: #ffffff;
  --border-skin: #c6b9d6;
  --border-focus: #243789;
  --panel-line: rgba(36, 55, 137, 0.08);
  --rivet-color: rgba(36, 55, 137, 0.18);
  --shadow-soft: 0 4px 18px rgba(36, 55, 137, 0.08);
  --shadow-lift: 0 12px 32px rgba(36, 55, 137, 0.16);
  --radius-gauge: 8px;
  --radius-card: 14px;
  --transition: all 0.28s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "HarmonyOS Sans", "Oswald", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-skin);
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(36, 55, 137, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(219, 207, 231, 0.5) 0%, transparent 45%),
    radial-gradient(circle at 10px 10px, var(--rivet-color) 1.5px, transparent 2px),
    repeating-linear-gradient(0deg, var(--panel-line) 0px, var(--panel-line) 1px, transparent 1px, transparent 36px),
    repeating-linear-gradient(90deg, var(--panel-line) 0px, var(--panel-line) 1px, transparent 1px, transparent 36px);
  background-size: auto, auto, 24px 24px, auto, auto;
  background-attachment: fixed;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

/* 链接与容器 */
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 按钮规范 - 航空襟翼刻度手柄按键 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-gauge);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary-deep);
  color: var(--text-light);
  border-color: var(--primary-deep);
  box-shadow: 0 4px 14px rgba(36, 55, 137, 0.28);
}

.btn-primary:hover {
  background-color: var(--primary-accent);
  border-color: var(--primary-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.btn-secondary {
  background-color: var(--primary-light);
  color: var(--primary-deep);
  border-color: var(--border-skin);
}

.btn-secondary:hover {
  background-color: #cdbfdc;
  border-color: var(--primary-deep);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-deep);
  border-color: var(--primary-deep);
}

.btn-outline:hover {
  background-color: var(--primary-deep);
  color: var(--text-light);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.08rem;
}

/* 顶部吸顶导航 (Header) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(244, 243, 248, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--border-skin);
  transition: var(--transition);
}

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

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

.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-gauge);
  background: var(--primary-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-skin);
  box-shadow: 0 2px 8px rgba(36, 55, 137, 0.25);
}

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

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary-deep);
  letter-spacing: 0.5px;
}

.brand-badge {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: "Oswald", sans-serif;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 0.96rem;
  font-weight: 600;
  color: var(--text-main);
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--primary-deep);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-deep);
}

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

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

/* 刻度骨架 Hero 首屏区 */
.hero-section {
  padding: 60px 0 50px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-gauge-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background-color: var(--primary-light);
  border: 1px solid var(--border-skin);
  border-left: 4px solid var(--primary-deep);
  border-radius: var(--radius-gauge);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 20px;
}

.gauge-notch {
  display: inline-block;
  width: 10px;
  height: 10px;
  background-color: var(--flap-amber);
  border-radius: 2px;
  box-shadow: 0 0 6px var(--flap-amber);
  animation: flapBlink 1.8s infinite ease-in-out;
}

@keyframes flapBlink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.hero-title {
  font-size: 2.7rem;
  line-height: 1.25;
  font-weight: 900;
  color: var(--primary-deep);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 1.12rem;
  color: var(--text-muted);
  margin-bottom: 30px;
  line-height: 1.68;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 30px;
}

.hero-meta-points {
  display: flex;
  gap: 20px;
  border-top: 1px dashed var(--border-skin);
  padding-top: 18px;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 600;
}

.meta-icon {
  color: var(--primary-deep);
  font-weight: 900;
}

.hero-visual {
  position: relative;
}

.flap-gauge-board {
  background: var(--bg-card);
  border: 2px solid var(--border-skin);
  border-radius: var(--radius-card);
  padding: 20px;
  box-shadow: var(--shadow-lift);
  position: relative;
}

.gauge-flight-tag {
  position: absolute;
  top: -12px;
  right: 20px;
  background-color: var(--primary-deep);
  color: #eedffa;
  font-family: "Oswald", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: var(--radius-gauge);
  letter-spacing: 0.5px;
}

.hero-img-box {
  border-radius: var(--radius-gauge);
  overflow: hidden;
  border: 1px solid var(--border-skin);
  background-color: #ffffff;
}

.hero-img-box img {
  width: 100%;
  height: auto;
  transition: transform 0.4s ease;
}

.hero-img-box:hover img {
  transform: scale(1.02);
}

/* 襟翼刻度 - 4 横条特色 */
.strip-features {
  padding: 24px 0 48px;
}

.strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.strip-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-left: 5px solid var(--primary-deep);
  border-radius: var(--radius-gauge);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: var(--transition);
}

.strip-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary-deep);
  border-left-color: var(--flap-amber);
  box-shadow: var(--shadow-soft);
}

.strip-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "Oswald", sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-deep);
  border-bottom: 1px solid var(--panel-line);
  padding-bottom: 4px;
}

.strip-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-main);
}

.strip-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 核心功能区 (3-4 列卡片布局) */
.section {
  padding: 60px 0;
}

.section-alt {
  background-color: rgba(219, 207, 231, 0.35);
  border-top: 1px solid var(--border-skin);
  border-bottom: 1px solid var(--border-skin);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 44px;
}

.section-tag {
  display: inline-block;
  padding: 4px 12px;
  background-color: var(--primary-light);
  border: 1px solid var(--border-skin);
  color: var(--primary-deep);
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-gauge);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-title {
  font-size: 2.15rem;
  font-weight: 900;
  color: var(--primary-deep);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 核心功能卡片 (4 列) */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.feature-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-card);
  padding: 26px 20px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-deep);
  box-shadow: var(--shadow-lift);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-gauge);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-deep);
  font-size: 1.35rem;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 1.18rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text-main);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.feature-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.feature-tag-list span {
  font-size: 0.76rem;
  background-color: var(--bg-skin);
  color: var(--primary-deep);
  padding: 2px 8px;
  border-radius: var(--radius-gauge);
  border: 1px solid var(--border-skin);
  font-weight: 600;
}

/* 亮点左右图文交替区 (构型模块) */
.split-feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: center;
  margin-bottom: 56px;
}

.split-feature-row:last-child {
  margin-bottom: 0;
}

.split-feature-row.reverse {
  direction: rtl;
}

.split-feature-row.reverse .split-content {
  direction: ltr;
}

.split-feature-row.reverse .split-visual {
  direction: ltr;
}

.split-visual {
  background-color: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-card);
  padding: 18px;
  box-shadow: var(--shadow-soft);
}

.split-content h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-deep);
  margin-bottom: 14px;
  line-height: 1.35;
}

.split-content p {
  font-size: 0.98rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  line-height: 1.68;
}

.split-points {
  list-style: none;
  margin-bottom: 22px;
}

.split-points li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
  font-size: 0.94rem;
  color: var(--text-main);
  font-weight: 500;
}

.split-points li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--primary-deep);
  font-weight: 900;
}

/* 4 步骤流程 (速度巡航构型装配) */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-top: 4px solid var(--primary-deep);
  border-radius: var(--radius-gauge);
  padding: 24px 18px;
  text-align: center;
  transition: var(--transition);
}

.step-card:hover {
  border-top-color: var(--flap-amber);
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.step-num {
  width: 40px;
  height: 40px;
  margin: 0 auto 14px;
  background: var(--primary-deep);
  color: #eedffa;
  border-radius: var(--radius-gauge);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 800;
  font-family: "Oswald", sans-serif;
}

.step-title {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-main);
}

.step-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 深色对照清单 (襟翼刻度构型 vs 传统混乱系统) */
.dark-comparison-section {
  background: linear-gradient(135deg, var(--primary-dark-bg), #1a275a);
  color: #eedffa;
  padding: 56px 0;
  border-radius: var(--radius-card);
  margin: 36px auto;
  border: 1px solid rgba(219, 207, 231, 0.25);
}

.comp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 32px;
}

.comp-col {
  padding: 24px;
  border-radius: var(--radius-gauge);
}

.comp-col.trad {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px dashed rgba(219, 207, 231, 0.25);
}

.comp-col.flap {
  background-color: rgba(219, 207, 231, 0.12);
  border: 1px solid var(--border-skin);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.comp-col h4 {
  font-size: 1.25rem;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(219, 207, 231, 0.2);
}

.comp-list {
  list-style: none;
}

.comp-list li {
  padding: 8px 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  line-height: 1.5;
}

.comp-list li .badge {
  flex-shrink: 0;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
}

.badge-cross { background: #5c182a; color: #ffccd7; }
.badge-check { background: var(--flap-amber); color: #000000; }

/* 4 岗位实践气泡卡 */
.roles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.role-card {
  background: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-card);
  padding: 22px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.role-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-deep);
  box-shadow: var(--shadow-soft);
}

.role-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.role-avatar {
  width: 40px;
  height: 40px;
  background: var(--primary-light);
  color: var(--primary-deep);
  font-weight: 800;
  border-radius: var(--radius-gauge);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
}

.role-name {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-main);
}

.role-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.role-quote {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
  font-style: italic;
}

/* 3 列实用小技巧 */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.tip-card {
  background: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: var(--transition);
}

.tip-card:hover {
  border-color: var(--primary-deep);
  box-shadow: var(--shadow-soft);
}

.tip-card h4 {
  font-size: 1.12rem;
  color: var(--primary-deep);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tip-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.58;
}

/* 数据背书与客户墙 */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-card);
  padding: 32px 20px;
  text-align: center;
  box-shadow: var(--shadow-soft);
  margin-bottom: 44px;
}

.stat-item h3 {
  font-family: "Oswald", sans-serif;
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary-deep);
  line-height: 1.1;
  margin-bottom: 6px;
}

.stat-item p {
  font-size: 0.92rem;
  color: var(--text-muted);
  font-weight: 600;
}

.clients-box {
  text-align: center;
}

.clients-title {
  font-size: 0.96rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  letter-spacing: 1px;
  font-weight: 700;
}

.clients-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.client-badge {
  padding: 8px 20px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-gauge);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  transition: var(--transition);
}

.client-badge:hover {
  border-color: var(--primary-deep);
  color: var(--primary-deep);
  transform: translateY(-2px);
}

/* 场景卡片 (4 列) */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
}

.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: var(--primary-deep);
}

.scenario-thumb {
  height: 135px;
  background: var(--primary-light);
  overflow: hidden;
}

.scenario-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scenario-body {
  padding: 18px;
}

.scenario-body h4 {
  font-size: 1.1rem;
  color: var(--primary-deep);
  margin-bottom: 6px;
  font-weight: 800;
}

.scenario-body p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 手风琴 FAQ (8 条) */
.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-gauge);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: var(--primary-deep);
  box-shadow: var(--shadow-soft);
}

.faq-question {
  padding: 18px 22px;
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-question:hover {
  color: var(--primary-deep);
}

.faq-icon {
  font-size: 1.15rem;
  color: var(--primary-deep);
  transition: transform 0.3s ease;
}

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

.faq-answer {
  display: none;
  padding: 0 22px 18px;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.62;
  border-top: 1px solid var(--panel-line);
}

.faq-item.active .faq-answer {
  display: block;
}

/* 动态资讯 (8 条带日期) */
.news-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-gauge);
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.news-card:hover {
  border-color: var(--primary-deep);
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.news-date {
  font-size: 0.78rem;
  color: var(--primary-deep);
  font-family: "Oswald", sans-serif;
  font-weight: 700;
  margin-bottom: 6px;
}

.news-title {
  font-size: 0.96rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.42;
  margin-bottom: 8px;
}

.news-summary {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.48;
  margin-bottom: 12px;
}

.news-link {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-deep);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 底部 CTA 区域 */
.cta-section {
  padding: 56px 0;
  text-align: center;
}

.cta-box {
  background: linear-gradient(135deg, var(--primary-deep), #111b44);
  color: var(--text-light);
  border-radius: var(--radius-card);
  padding: 44px 28px;
  box-shadow: var(--shadow-lift);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cta-box h2 {
  font-size: 2.1rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.cta-box p {
  font-size: 1.02rem;
  color: #eedffa;
  max-width: 660px;
  margin-bottom: 26px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 22px;
}

.cta-qr-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.08);
  padding: 8px 16px;
  border-radius: var(--radius-gauge);
  border: 1px solid rgba(219, 207, 231, 0.2);
}

.cta-qr-icon {
  font-size: 1.8rem;
}

.cta-qr-text {
  text-align: left;
  font-size: 0.82rem;
}

/* 网站页脚 (Footer) */
.site-footer {
  background-color: var(--primary-dark-bg);
  color: #d8cfe3;
  padding: 52px 0 24px;
  border-top: 2px solid var(--primary-deep);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

.footer-brand h4 {
  font-size: 1.25rem;
  color: #ffffff;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand p {
  font-size: 0.86rem;
  color: #b3a7c4;
  line-height: 1.58;
  max-width: 360px;
}

.footer-col h5 {
  font-size: 1rem;
  color: #ffffff;
  margin-bottom: 14px;
  border-bottom: 1px solid rgba(219, 207, 231, 0.2);
  padding-bottom: 6px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  font-size: 0.86rem;
  color: #b3a7c4;
}

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

.footer-bottom {
  border-top: 1px solid rgba(219, 207, 231, 0.12);
  padding-top: 20px;
  text-align: center;
  font-size: 0.8rem;
  color: #9286a5;
  line-height: 1.58;
}

/* 下载页面专属 (Download Page) */
.dl-hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-card);
  padding: 36px;
  box-shadow: var(--shadow-lift);
  margin-bottom: 44px;
}

.dl-platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 36px;
}

.dl-card {
  background: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-gauge);
  padding: 26px;
  text-align: center;
  transition: var(--transition);
}

.dl-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-deep);
  box-shadow: var(--shadow-lift);
}

.dl-icon {
  font-size: 2.6rem;
  color: var(--primary-deep);
  margin-bottom: 12px;
}

.dl-meta {
  font-size: 0.84rem;
  color: var(--text-muted);
  margin: 10px 0 18px;
  line-height: 1.5;
}

.hash-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 18px;
  font-size: 0.86rem;
}

.hash-table th, .hash-table td {
  padding: 10px 14px;
  border: 1px solid var(--border-skin);
  text-align: left;
}

.hash-table th {
  background-color: var(--primary-light);
  color: var(--primary-deep);
  font-weight: 800;
}

.hash-table td code {
  background-color: var(--bg-skin);
  padding: 2px 5px;
  border-radius: 3px;
  font-family: monospace;
  color: var(--primary-deep);
  word-break: break-all;
}

/* 帮助中心专属 (Help Page) */
.help-search-box {
  background: linear-gradient(135deg, var(--primary-deep), #111b44);
  border-radius: var(--radius-card);
  padding: 44px;
  color: #ffffff;
  text-align: center;
  margin-bottom: 44px;
}

.help-search-box h1 {
  font-size: 2.1rem;
  margin-bottom: 14px;
}

.help-search-input {
  max-width: 580px;
  margin: 0 auto;
}

.help-search-input input {
  width: 100%;
  padding: 13px 18px;
  border-radius: var(--radius-gauge);
  border: none;
  font-size: 0.96rem;
  outline: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.help-cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 44px;
}

.help-cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-skin);
  border-radius: var(--radius-gauge);
  padding: 22px;
  transition: var(--transition);
}

.help-cat-card:hover {
  border-color: var(--primary-deep);
  box-shadow: var(--shadow-soft);
}

.help-cat-card h3 {
  font-size: 1.15rem;
  color: var(--primary-deep);
  margin-bottom: 10px;
}

.help-cat-links {
  list-style: none;
}

.help-cat-links li {
  margin-bottom: 7px;
}

.help-cat-links a {
  font-size: 0.9rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 5px;
}

.help-cat-links a:hover {
  color: var(--primary-deep);
}

/* 响应式断点 */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .strip-grid, .features-grid, .steps-grid, .roles-grid, .scenarios-grid, .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .split-feature-row, .split-feature-row.reverse {
    grid-template-columns: 1fr;
    direction: ltr !important;
  }
  .comp-grid {
    grid-template-columns: 1fr;
  }
  .dl-platform-grid, .help-cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .hero-title {
    font-size: 1.95rem;
  }
  .strip-grid, .features-grid, .steps-grid, .roles-grid, .scenarios-grid, .news-grid, .tips-grid {
    grid-template-columns: 1fr;
  }
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .dl-platform-grid, .help-cat-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}