/* ===== 金牌影院 - 完整CSS样式 ===== */
/* 全局重置与基础 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #e94560;
  --primary-dark: #d63851;
  --primary-light: rgba(233, 69, 96, 0.15);
  --bg-dark: #1a1a2e;
  --bg-light: #f8f9fa;
  --bg-card: #ffffff;
  --text-dark: #1a1a2e;
  --text-light: #e0e0e0;
  --text-muted: #666666;
  --text-muted-light: #cccccc;
  --border-color: #e0e0e0;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.12);
  --radius: 12px;
  --radius-sm: 6px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

body {
  font-family: var(--font);
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--bg-light);
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

body.dark-mode {
  background: #121212;
  color: var(--text-light);
}

body.dark-mode .section {
  background: #1e1e1e;
}

body.dark-mode .bg-light {
  background: #2a2a2a;
}

body.dark-mode .breadcrumb {
  background: #1e1e1e;
  border-bottom-color: #333;
}

body.dark-mode .breadcrumb a {
  color: var(--primary);
}

body.dark-mode .product-card,
body.dark-mode .solution-item,
body.dark-mode .scenario,
body.dark-mode .case-card,
body.dark-mode .article-card,
body.dark-mode .faq-question,
body.dark-mode .faq-answer,
body.dark-mode .testimonials blockquote {
  background: #2a2a2a;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

body.dark-mode .faq-item {
  border-color: #444;
}

body.dark-mode .friend-links a {
  background: #2a2a2a;
  border-color: #444;
  color: #ccc;
}

body.dark-mode .site-map a {
  color: #aaa;
}

body.dark-mode .contact-form input,
body.dark-mode .contact-form textarea {
  background: #2a2a2a;
  border-color: #444;
  color: #e0e0e0;
}

body.dark-mode .section-subtitle {
  color: #aaa;
}

body.dark-mode .about-info li {
  border-bottom-color: #333;
}

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

a:hover {
  text-decoration: underline;
  color: var(--primary-dark);
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.bg-light {
  background: #f0f2f5;
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.3;
}

h1 {
  font-size: 2.8rem;
  margin-bottom: 1.2rem;
}

h2 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  text-align: center;
  position: relative;
}

h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--primary);
  margin: 15px auto 0;
  border-radius: 2px;
}

h3 {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
}

p {
  margin-bottom: 1rem;
}

.btn-primary {
  display: inline-block;
  padding: 14px 35px;
  background: linear-gradient(135deg, var(--primary), #ff6b81);
  color: #fff;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(233, 69, 96, 0.4);
  text-decoration: none;
  color: #fff;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 50px;
  font-size: 1.1rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 导航栏 ===== */
.site-nav {
  background: var(--bg-dark);
  color: #fff;
  padding: 0 20px;
  position: relative;
  z-index: 1000;
  transition: all var(--transition);
}

.site-nav.sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 0;
}

.nav-logo a {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: 1px;
}

.nav-logo a:hover {
  text-decoration: none;
}

.nav-logo svg {
  width: 40px;
  height: 40px;
  transition: transform var(--transition);
}

.nav-logo a:hover svg {
  transform: scale(1.1);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 8px;
}

.nav-links a {
  color: #ccc;
  padding: 10px 16px;
  border-radius: 8px;
  transition: all var(--transition);
  font-size: 0.95rem;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: #fff;
  background: rgba(233, 69, 96, 0.15);
  text-decoration: none;
}

.nav-links a:hover::after {
  width: 60%;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
}

.mobile-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  background: #fff;
  margin: 6px 0;
  border-radius: 3px;
  transition: all var(--transition);
}

.mobile-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.nav-search {
  display: flex;
  gap: 5px;
  align-items: center;
}

.nav-search input {
  padding: 8px 16px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 25px;
  background: rgba(255,255,255,0.08);
  color: #fff;
  width: 200px;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.nav-search input:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(255,255,255,0.12);
  width: 240px;
}

.nav-search input::placeholder {
  color: rgba(255,255,255,0.5);
}

.nav-search button {
  background: var(--primary);
  border: none;
  color: #fff;
  padding: 8px 15px;
  border-radius: 25px;
  cursor: pointer;
  transition: all var(--transition);
  font-size: 1rem;
}

.nav-search button:hover {
  background: var(--primary-dark);
  transform: scale(1.05);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  background: #fff;
  padding: 12px 20px;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  gap: 10px;
  max-width: 1200px;
  margin: 0 auto;
}

.breadcrumb li + li::before {
  content: "›";
  margin-right: 10px;
  color: #999;
}

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

/* ===== Hero Banner ===== */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  color: #fff;
  min-height: 600px;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 70%, rgba(233, 69, 96, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 70% 30%, rgba(233, 69, 96, 0.05) 0%, transparent 50%);
  animation: heroGlow 10s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-20px, -20px); }
}

.hero-slider {
  position: relative;
  width: 100%;
  z-index: 1;
}

.slide {
  display: none;
  padding: 100px 20px;
  text-align: center;
}

.slide.active {
  display: block;
  animation: fadeSlide 0.8s ease;
}

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.slide-content {
  max-width: 800px;
  margin: 0 auto;
}

.slide-content h1 {
  font-size: 3.2rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff, var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.slide-content p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.8;
}

.hero-nav {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 15px;
  z-index: 2;
}

.dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}

.dot.active {
  background: var(--primary);
  border-color: #fff;
  transform: scale(1.2);
  box-shadow: 0 0 15px rgba(233, 69, 96, 0.5);
}

.dot:hover {
  background: rgba(233, 69, 96, 0.6);
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 50px;
  align-items: start;
}

.about-text {
  background: var(--bg-card);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
}

body.dark-mode .about-text {
  background: rgba(42, 42, 42, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.about-text h3 {
  color: var(--primary);
  margin-bottom: 20px;
}

.about-text p {
  color: #555;
  line-height: 1.8;
}

body.dark-mode .about-text p {
  color: #ccc;
}

.about-info {
  background: var(--bg-card);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,0.1);
}

body.dark-mode .about-info {
  background: rgba(42, 42, 42, 0.9);
}

.about-info ul {
  list-style: none;
  margin-top: 20px;
}

.about-info li {
  padding: 10px 0;
  border-bottom: 1px solid #eee;
  display: flex;
  gap: 8px;
}

.about-info li:last-child {
  border-bottom: none;
}

.about-info li strong {
  color: var(--primary);
  min-width: 100px;
}

.about-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 25px;
}

.about-badges span {
  background: linear-gradient(135deg, var(--primary), #ff6b81);
  color: #fff;
  padding: 6px 18px;
  border-radius: 25px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(233, 69, 96, 0.3);
}

/* ===== Products ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.product-card {
  background: var(--bg-card);
  padding: 35px 25px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: all var(--transition);
  border: 1px solid rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), #ff6b81);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.product-card:hover::before {
  transform: scaleX(1);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.product-card svg {
  margin: 0 auto 20px;
  transition: transform var(--transition);
}

.product-card:hover svg {
  transform: scale(1.1) rotate(5deg);
}

.product-card h3 {
  margin-bottom: 15px;
  color: var(--text-dark);
}

body.dark-mode .product-card h3 {
  color: var(--text-light);
}

.product-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

body.dark-mode .product-card p {
  color: #aaa;
}

/* ===== Solutions ===== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.solution-item {
  background: var(--bg-card);
  padding: 35px 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-left: 5px solid var(--primary);
  transition: all var(--transition);
}

.solution-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-left-width: 8px;
}

.solution-item h3 {
  color: var(--primary);
  margin-bottom: 15px;
}

.solution-item p {
  color: var(--text-muted);
}

body.dark-mode .solution-item p {
  color: #aaa;
}

/* ===== Scenarios ===== */
.scenarios {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
}

.scenario {
  text-align: center;
  padding: 35px 25px;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.scenario:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: var(--shadow-hover);
}

.scenario svg {
  margin: 0 auto 20px;
  transition: transform var(--transition);
}

.scenario:hover svg {
  transform: scale(1.15);
}

.scenario h3 {
  margin-bottom: 12px;
}

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

body.dark-mode .scenario p {
  color: #aaa;
}

/* ===== Cases ===== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.case-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.case-card svg {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform var(--transition);
}

.case-card:hover svg {
  transform: scale(1.05);
}

.case-card h3 {
  padding: 20px 25px 10px;
  font-size: 1.2rem;
}

.case-card p {
  padding: 0 25px 25px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

body.dark-mode .case-card p {
  color: #aaa;
}

.testimonials {
  margin-top: 50px;
}

.testimonials h3 {
  text-align: center;
  margin-bottom: 30px;
  color: var(--primary);
}

.testimonials blockquote {
  background: var(--bg-card);
  padding: 25px 35px;
  border-radius: var(--radius);
  border-left: 5px solid var(--primary);
  margin-bottom: 20px;
  transition: all var(--transition);
  box-shadow: var(--shadow);
}

.testimonials blockquote:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-hover);
}

.testimonials blockquote p {
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.8;
}

.testimonials cite {
  display: block;
  margin-top: 15px;
  color: var(--text-muted);
  font-style: normal;
  font-weight: 600;
  font-size: 0.95rem;
}

body.dark-mode .testimonials cite {
  color: #aaa;
}

/* ===== Articles ===== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.article-card {
  background: var(--bg-card);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid rgba(255,255,255,0.1);
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.article-card time {
  display: block;
  color: #999;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.article-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  transition: color var(--transition);
}

.article-card:hover h3 {
  color: var(--primary);
}

.article-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 15px;
}

body.dark-mode .article-card p {
  color: #aaa;
}

.article-card .read-more {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: gap var(--transition);
}

.article-card .read-more:hover {
  gap: 10px;
  text-decoration: none;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}

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

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  background: var(--bg-card);
  cursor: pointer;
  transition: background var(--transition);
}

.faq-question:hover {
  background: rgba(233, 69, 96, 0.05);
}

.faq-question h3 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.faq-icon {
  font-size: 1.6rem;
  font-weight: 300;
  color: var(--primary);
  transition: transform var(--transition);
  min-width: 30px;
  text-align: center;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease, padding 0.3s ease;
  padding: 0 25px;
  background: rgba(250,250,250,0.8);
}

body.dark-mode .faq-answer {
  background: rgba(42, 42, 42, 0.9);
}

.faq-answer p {
  padding: 20px 0;
  line-height: 1.8;
  color: #555;
}

body.dark-mode .faq-answer p {
  color: #ccc;
}

/* ===== HowTo ===== */
.howto-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-card);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

body.dark-mode .howto-content {
  background: rgba(42, 42, 42, 0.9);
}

.howto-content h3 {
  margin-top: 35px;
  color: var(--primary);
  font-size: 1.3rem;
}

.howto-content h3:first-of-type {
  margin-top: 0;
}

.howto-content ul,
.howto-content ol {
  padding-left: 25px;
  margin-bottom: 20px;
}

.howto-content li {
  margin-bottom: 10px;
  line-height: 1.7;
}

.howto-content li strong {
  color: var(--primary);
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.contact-info {
  background: var(--bg-card);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

body.dark-mode .contact-info {
  background: rgba(42, 42, 42, 0.9);
}

.contact-info h3 {
  color: var(--primary);
  margin-bottom: 25px;
}

.contact-info p {
  margin-bottom: 15px;
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.contact-info p strong {
  min-width: 80px;
  color: var(--text-dark);
}

body.dark-mode .contact-info p strong {
  color: var(--text-light);
}

.contact-form {
  background: var(--bg-card);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

body.dark-mode .contact-form {
  background: rgba(42, 42, 42, 0.9);
}

.contact-form h3 {
  color: var(--primary);
  margin-bottom: 25px;
}

.contact-form label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: 0.95rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: all var(--transition);
  background: #fff;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.1);
}

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

/* ===== Links ===== */
.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
  margin-bottom: 40px;
}

.friend-links a {
  background: var(--bg-card);
  padding: 10px 25px;
  border-radius: 25px;
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  font-size: 0.95rem;
  color: #555;
}

.friend-links a:hover {
  background: linear-gradient(135deg, var(--primary), #ff6b81);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3);
}

.site-map {
  text-align: center;
}

.site-map h3 {
  margin-bottom: 20px;
  color: var(--text-dark);
}

body.dark-mode .site-map h3 {
  color: var(--text-light);
}

.site-map ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
}

.site-map a {
  color: var(--text-muted);
  padding: 5px 10px;
  transition: color var(--transition);
}

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

/* ===== Footer ===== */
.site-footer {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  color: #ccc;
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-grid h3 {
  color: #fff;
  margin-bottom: 20px;
  font-size: 1.2rem;
  position: relative;
  padding-bottom: 10px;
}

.footer-grid h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-about p {
  color: #aaa;
  line-height: 1.8;
}

.footer-links ul,
.footer-legal ul {
  list-style: none;
}

.footer-links a,
.footer-legal a {
  color: #aaa;
  display: block;
  padding: 6px 0;
  transition: all var(--transition);
}

.footer-links a:hover,
.footer-legal a:hover {
  color: var(--primary);
  padding-left: 5px;
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 25px;
  text-align: center;
  font-size: 0.9rem;
}

.footer-bottom p {
  margin-bottom: 5px;
}

.footer-bottom a {
  color: var(--primary);
}

/* ===== 返回顶部 ===== */
#back-to-top {
  display: none;
  position: fixed;
  bottom: 90px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), #ff6b81);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 999;
  box-shadow: 0 4px 15px rgba(233, 69, 96, 0.4);
  transition: all var(--transition);
}

#back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(233, 69, 96, 0.5);
}

/* ===== 暗黑模式切换 ===== */
#dark-mode-toggle {
  position: fixed;
  bottom: 25px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--bg-dark);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 999;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: all var(--transition);
}

#dark-mode-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  h1 {
    font-size: 2.4rem;
  }
  
  .slide-content h1 {
    font-size: 2.6rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    background: var(--bg-dark);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 20px;
    gap: 5px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }
  
  .nav-links.open {
    display: flex;
    animation: slideDown 0.3s ease;
  }
  
  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .nav-search {
    display: none;
  }
  
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  .slide-content h1 {
    font-size: 2rem;
  }
  
  .slide-content p {
    font-size: 1rem;
  }
  
  .hero {
    min-height: 450px;
  }
  
  .section {
    padding: 50px 0;
  }
  
  .slide {
    padding: 60px 20px;
  }
  
  .about-text,
  .about-info,
  .howto-content,
  .contact-info,
  .contact-form {
    padding: 25px;
  }
  
  .cases-grid,
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  #back-to-top,
  #dark-mode-toggle {
    width: 45px;
    height: 45px;
    font-size: 1.2rem;
    right: 20px;
  }
  
  #back-to-top {
    bottom: 80px;
  }
  
  #dark-mode-toggle {
    bottom: 20px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-grid h3::after {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .friend-links {
    gap: 10px;
  }
  
  .friend-links a {
    padding: 8px 18px;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  h1 {
    font-size: 1.6rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .slide-content h1 {
    font-size: 1.6rem;
  }
  
  .btn-primary {
    padding: 12px 25px;
    font-size: 0.95rem;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  
  .scenarios {
    grid-template-columns: 1fr;
  }
  
  .cases-grid {
    grid-template-columns: 1fr;
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .faq-question {
    padding: 14px 18px;
  }
  
  .faq-question h3 {
    font-size: 1rem;
  }
  
  .testimonials blockquote {
    padding: 20px;
  }
}

/* ===== 图片懒加载 ===== */
svg[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.5s ease;
}

svg[loading="lazy"].loaded {
  opacity: 1;
}

/* ===== 玻璃效果通用类 ===== */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

body.dark-mode .glass {
  background: rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.1);
}