/* ============================================
   迷雾之镜 - 主样式表
   CSS前缀: ln-
   配色: 墨绿 #00332e / 深黑 #1a1a1a / 雾感灰绿 #7d9c8a / 浅灰 #cccccc / 亮灰绿 #a9c4b5
   ============================================ */

/* --- 基础重置与变量 --- */
:root {
  --ln-primary: #00332e;
  --ln-secondary: #1a1a1a;
  --ln-accent: #7d9c8a;
  --ln-text: #cccccc;
  --ln-link: #a9c4b5;
  --ln-bg: #0d0d0d;
  --ln-card-bg: rgba(0, 51, 46, 0.15);
  --ln-glass: rgba(0, 51, 46, 0.25);
  --ln-glass-border: rgba(125, 156, 138, 0.2);
  --ln-font-heading: 'Source Serif Pro', 'Noto Serif SC', serif;
  --ln-font-body: 'Roboto', 'Noto Sans SC', sans-serif;
  --ln-radius: 8px;
  --ln-transition: 0.3s ease;
}

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

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

body {
  font-family: var(--ln-font-body);
  background-color: var(--ln-bg);
  color: var(--ln-text);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: #d0e8da;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--ln-font-heading);
  color: #e0e0e0;
  line-height: 1.4;
}

/* --- 干扰标签隐藏 --- */
.fog-jammer-block {
  display: none;
}

/* --- 导航栏 --- */
#ln-header {
  width: 100%;
  background: rgba(26, 26, 26, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(125, 156, 138, 0.1);
}

.ln-nav-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.ln-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--ln-font-heading);
  font-size: 1.25rem;
  color: var(--ln-accent);
  font-weight: 600;
}

.ln-logo-icon {
  width: 36px;
  height: 36px;
}

.ln-nav-list {
  display: flex;
  list-style: none;
  gap: 4px;
}

.ln-nav-list li a {
  display: block;
  padding: 8px 14px;
  font-size: 0.9rem;
  color: var(--ln-text);
  border-radius: var(--ln-radius);
  transition: all var(--ln-transition);
  white-space: nowrap;
}

.ln-nav-list li a:hover {
  color: var(--ln-link);
  text-shadow: 0 0 8px rgba(169, 196, 181, 0.4);
  -webkit-text-stroke: 0.3px rgba(169, 196, 181, 0.3);
}

/* 汉堡菜单 */
.ln-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.ln-hamburger span {
  width: 24px;
  height: 2px;
  background: var(--ln-text);
  transition: all var(--ln-transition);
  display: block;
}

.ln-mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100vh;
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 2000;
  transition: right 0.4s ease;
  padding: 80px 30px 30px;
  border-left: 1px solid var(--ln-glass-border);
}

.ln-mobile-menu.ln-active {
  right: 0;
}

.ln-mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: var(--ln-text);
  font-size: 1.5rem;
  cursor: pointer;
}

.ln-mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ln-mobile-nav-list li a {
  display: block;
  padding: 12px 16px;
  color: var(--ln-text);
  font-size: 1rem;
  border-radius: var(--ln-radius);
  transition: all var(--ln-transition);
}

.ln-mobile-nav-list li a:hover {
  background: var(--ln-glass);
  color: var(--ln-link);
}

.ln-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1500;
}

.ln-overlay.ln-active {
  display: block;
}

/* --- Hero Banner --- */
#ln-hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--ln-secondary);
}

.ln-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
  animation: ln-fog-drift 20s ease-in-out infinite alternate;
}

@keyframes ln-fog-drift {
  0% { transform: scale(1) translateX(0); }
  50% { transform: scale(1.05) translateX(-10px); }
  100% { transform: scale(1.02) translateX(5px); }
}

.ln-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(0, 51, 46, 0.3) 0%, rgba(13, 13, 13, 0.8) 70%);
}

.ln-hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 20px;
  animation: ln-fade-in 2s ease forwards;
  opacity: 0;
}

@keyframes ln-fade-in {
  to { opacity: 1; }
}

.ln-hero-content h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
  color: #e8e8e8;
  letter-spacing: 2px;
}

.ln-hero-slogan {
  font-size: 1.2rem;
  color: var(--ln-accent);
  font-family: var(--ln-font-heading);
  letter-spacing: 4px;
  margin-bottom: 32px;
}

.ln-hero-cta {
  display: inline-block;
  padding: 12px 36px;
  border: 1px solid var(--ln-accent);
  color: var(--ln-accent);
  font-size: 0.95rem;
  border-radius: var(--ln-radius);
  transition: all var(--ln-transition);
  letter-spacing: 1px;
}

.ln-hero-cta:hover {
  background: rgba(125, 156, 138, 0.15);
  box-shadow: 0 0 20px rgba(125, 156, 138, 0.2);
  color: #d0e8da;
}

/* --- 通用区块 --- */
.ln-section {
  padding: 80px 24px;
  max-width: 1440px;
  margin: 0 auto;
}

.ln-section-header {
  text-align: center;
  margin-bottom: 48px;
}

.ln-section-header h2 {
  font-size: 2rem;
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.ln-section-header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: var(--ln-accent);
  margin: 12px auto 0;
}

.ln-section-header p {
  color: var(--ln-accent);
  font-size: 0.95rem;
  font-style: italic;
}

/* --- 毛玻璃卡片 --- */
.ln-card {
  background: var(--ln-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--ln-glass-border);
  border-radius: var(--ln-radius);
  padding: 24px;
  transition: all var(--ln-transition);
}

.ln-card:hover {
  border-color: rgba(169, 196, 181, 0.4);
  box-shadow: 0 8px 32px rgba(0, 51, 46, 0.2);
  transform: translateY(-4px);
}

.ln-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--ln-radius);
  margin-bottom: 16px;
}

.ln-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.ln-card p {
  font-size: 0.9rem;
  color: rgba(204, 204, 204, 0.8);
}

.ln-card-meta {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--ln-accent);
}

/* --- 网格布局 --- */
.ln-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ln-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.ln-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* --- 案例分析（可展开卡片） --- */
.ln-case-card {
  cursor: pointer;
}

.ln-case-card .ln-case-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease;
}

.ln-case-card.ln-expanded .ln-case-detail {
  max-height: 600px;
}

.ln-case-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.ln-tag {
  padding: 4px 12px;
  background: rgba(125, 156, 138, 0.15);
  border: 1px solid rgba(125, 156, 138, 0.3);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--ln-accent);
}

/* --- 匿名故事滚动区 --- */
.ln-stories-scroll {
  height: 360px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--ln-glass-border);
  border-radius: var(--ln-radius);
  padding: 24px;
  background: var(--ln-glass);
  backdrop-filter: blur(12px);
}

.ln-stories-inner {
  animation: ln-scroll-up 30s linear infinite;
}

@keyframes ln-scroll-up {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}

.ln-story-item {
  padding: 16px 0;
  border-bottom: 1px solid rgba(125, 156, 138, 0.1);
}

.ln-story-item p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(204, 204, 204, 0.85);
}

.ln-story-item .ln-story-author {
  font-size: 0.8rem;
  color: var(--ln-accent);
  margin-top: 8px;
}

/* --- 专家区块 --- */
.ln-expert-card {
  text-align: center;
}

.ln-expert-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto 16px;
  object-fit: cover;
  border: 2px solid var(--ln-glass-border);
}

.ln-expert-card h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.ln-expert-card .ln-expert-title {
  font-size: 0.85rem;
  color: var(--ln-accent);
  margin-bottom: 12px;
}

/* --- 书籍推荐 --- */
.ln-book-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.ln-book-cover {
  width: 100px;
  min-width: 100px;
  height: 140px;
  object-fit: cover;
  border-radius: 4px;
}

.ln-book-info h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.ln-book-info .ln-book-author {
  font-size: 0.85rem;
  color: var(--ln-accent);
  margin-bottom: 8px;
}

/* --- 自我测评 --- */
.ln-assessment-card {
  text-align: center;
  padding: 32px 24px;
}

.ln-assessment-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  color: var(--ln-accent);
}

.ln-btn-outline {
  display: inline-block;
  padding: 10px 28px;
  border: 1px solid var(--ln-accent);
  color: var(--ln-accent);
  border-radius: var(--ln-radius);
  font-size: 0.9rem;
  transition: all var(--ln-transition);
  margin-top: 16px;
  cursor: pointer;
  background: none;
}

.ln-btn-outline:hover {
  background: rgba(125, 156, 138, 0.15);
  box-shadow: 0 0 16px rgba(125, 156, 138, 0.15);
  color: #d0e8da;
}

/* --- 会员区块 --- */
#ln-membership {
  background: linear-gradient(135deg, rgba(0, 51, 46, 0.2) 0%, rgba(13, 13, 13, 0.9) 100%);
  border-top: 1px solid var(--ln-glass-border);
  border-bottom: 1px solid var(--ln-glass-border);
}

.ln-membership-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.ln-membership-feature {
  text-align: center;
  padding: 24px;
}

.ln-membership-feature h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

/* --- 安全须知 --- */
.ln-safety-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ln-safety-item {
  text-align: center;
  padding: 32px 20px;
  background: var(--ln-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--ln-glass-border);
  border-radius: var(--ln-radius);
}

.ln-safety-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  color: var(--ln-accent);
}

.ln-safety-item h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

/* --- 社群入口 --- */
#ln-community {
  text-align: center;
  padding: 80px 24px;
  background: radial-gradient(ellipse at center, rgba(0, 51, 46, 0.15) 0%, transparent 70%);
}

.ln-community-cta {
  display: inline-block;
  padding: 14px 48px;
  border: 1px solid var(--ln-accent);
  color: var(--ln-accent);
  font-size: 1rem;
  border-radius: var(--ln-radius);
  transition: all var(--ln-transition);
  margin-top: 24px;
  letter-spacing: 1px;
}

.ln-community-cta:hover {
  background: rgba(125, 156, 138, 0.15);
  box-shadow: 0 0 24px rgba(125, 156, 138, 0.2);
}

/* --- 页脚 --- */
#ln-footer {
  background: var(--ln-secondary);
  border-top: 1px solid var(--ln-glass-border);
  padding: 60px 24px 30px;
}

.ln-footer-container {
  max-width: 1440px;
  margin: 0 auto;
}

.ln-footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.ln-footer-col h4 {
  font-size: 1rem;
  color: var(--ln-link);
  margin-bottom: 16px;
  font-family: var(--ln-font-heading);
}

.ln-footer-col ul {
  list-style: none;
}

.ln-footer-col ul li {
  margin-bottom: 8px;
}

.ln-footer-col ul li a {
  font-size: 0.9rem;
  color: rgba(204, 204, 204, 0.7);
  transition: color var(--ln-transition);
}

.ln-footer-col ul li a:hover {
  color: var(--ln-link);
}

.ln-footer-bottom {
  border-top: 1px solid rgba(125, 156, 138, 0.1);
  padding-top: 24px;
  text-align: center;
}

.ln-footer-certs {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  font-size: 0.8rem;
  color: rgba(204, 204, 204, 0.5);
}

.ln-footer-certs a {
  color: rgba(204, 204, 204, 0.5);
  text-decoration: underline;
}

.ln-footer-certs a:hover {
  color: var(--ln-link);
}

.ln-footer-honor {
  font-size: 0.8rem;
  color: rgba(204, 204, 204, 0.5);
  margin-bottom: 12px;
}

.ln-footer-copyright {
  font-size: 0.8rem;
  color: rgba(204, 204, 204, 0.4);
}

/* --- 内页通用 --- */
.ln-page-hero {
  position: relative;
  height: 40vh;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--ln-secondary);
}

.ln-page-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.ln-page-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(13, 13, 13, 0.4), rgba(13, 13, 13, 0.9));
}

.ln-page-hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
}

.ln-page-hero-content h1 {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.ln-page-hero-content p {
  color: var(--ln-accent);
  font-size: 1rem;
}

/* --- 文章内容 --- */
.ln-article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 24px;
}

.ln-article-content h2 {
  font-size: 1.5rem;
  margin: 32px 0 16px;
}

.ln-article-content h3 {
  font-size: 1.25rem;
  margin: 24px 0 12px;
}

.ln-article-content p {
  margin-bottom: 16px;
  font-size: 1rem;
  line-height: 1.9;
}

.ln-article-img {
  width: 100%;
  border-radius: var(--ln-radius);
  margin: 24px 0;
}

.ln-article-list {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 24px;
}

/* --- 咨询页面 --- */
#ln-consultation-hero {
  position: relative;
  height: 50vh;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.ln-form-container {
  max-width: 640px;
  margin: 0 auto;
  padding: 60px 24px;
}

.ln-form-group {
  margin-bottom: 24px;
}

.ln-form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--ln-text);
}

.ln-form-input,
.ln-form-select,
.ln-form-textarea {
  width: 100%;
  padding: 12px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(125, 156, 138, 0.3);
  color: var(--ln-text);
  font-size: 1rem;
  font-family: var(--ln-font-body);
  transition: border-color var(--ln-transition);
  outline: none;
}

.ln-form-input:focus,
.ln-form-select:focus,
.ln-form-textarea:focus {
  border-bottom-color: var(--ln-link);
}

.ln-form-select {
  appearance: none;
  cursor: pointer;
}

.ln-form-textarea {
  resize: vertical;
  min-height: 120px;
}

.ln-form-hint {
  font-size: 0.8rem;
  color: var(--ln-accent);
  margin-top: 4px;
  display: none;
}

.ln-form-group:focus-within .ln-form-hint {
  display: block;
}

.ln-form-submit {
  display: block;
  width: 100%;
  padding: 14px;
  border: 1px solid var(--ln-accent);
  background: transparent;
  color: var(--ln-accent);
  font-size: 1rem;
  border-radius: var(--ln-radius);
  cursor: pointer;
  transition: all var(--ln-transition);
  font-family: var(--ln-font-body);
  letter-spacing: 1px;
}

.ln-form-submit:hover {
  background: rgba(125, 156, 138, 0.15);
  box-shadow: 0 0 20px rgba(125, 156, 138, 0.2);
}

/* --- APP下载页 --- */
#ln-app-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.ln-app-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 600px;
  padding: 40px 24px;
}

.ln-app-content h1 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.ln-app-content .ln-app-subtitle {
  color: var(--ln-accent);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

.ln-app-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.ln-app-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: 1px solid var(--ln-accent);
  color: var(--ln-accent);
  border-radius: var(--ln-radius);
  font-size: 0.95rem;
  transition: all var(--ln-transition);
}

.ln-app-btn:hover {
  background: rgba(125, 156, 138, 0.15);
  box-shadow: 0 0 20px rgba(125, 156, 138, 0.2);
}

.ln-app-encryption {
  font-size: 0.85rem;
  color: rgba(204, 204, 204, 0.6);
  margin-top: 24px;
}

/* --- 面包屑 --- */
.ln-breadcrumb {
  padding: 16px 24px;
  max-width: 1440px;
  margin: 0 auto;
  font-size: 0.85rem;
  color: rgba(204, 204, 204, 0.5);
}

.ln-breadcrumb a {
  color: rgba(204, 204, 204, 0.5);
}

.ln-breadcrumb a:hover {
  color: var(--ln-link);
}

.ln-breadcrumb span {
  margin: 0 8px;
}

/* --- 淡入动画 --- */
.ln-fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.ln-fade-in.ln-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- 响应式设计 --- */

/* 1440px */
@media (max-width: 1440px) {
  .ln-section {
    max-width: 1200px;
  }
}

/* 1024px */
@media (max-width: 1024px) {
  .ln-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .ln-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .ln-membership-features {
    grid-template-columns: repeat(2, 1fr);
  }
  .ln-safety-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ln-footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ln-nav-list {
    display: none;
  }
  .ln-hamburger {
    display: flex;
  }
}

/* 768px */
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  .ln-hero-content h1 {
    font-size: 1.8rem;
  }
  .ln-hero-slogan {
    font-size: 1rem;
    letter-spacing: 2px;
  }
  .ln-section {
    padding: 60px 16px;
  }
  .ln-section-header h2 {
    font-size: 1.6rem;
  }
  .ln-grid-2 {
    grid-template-columns: 1fr;
  }
  .ln-page-hero-content h1 {
    font-size: 1.8rem;
  }
  .ln-footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* 360px */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  .ln-grid-3 {
    grid-template-columns: 1fr;
  }
  .ln-grid-4 {
    grid-template-columns: 1fr;
  }
  .ln-membership-features {
    grid-template-columns: 1fr;
  }
  .ln-safety-grid {
    grid-template-columns: 1fr;
  }
  .ln-hero-content h1 {
    font-size: 1.5rem;
  }
  .ln-nav-container {
    padding: 0 16px;
  }
  .ln-book-card {
    flex-direction: column;
  }
  .ln-book-cover {
    width: 80px;
    height: 110px;
  }
  .ln-app-buttons {
    flex-direction: column;
    align-items: center;
  }
}