/* ============================================
   山东云岚文化传媒官网 - 主样式表
   配色：暖金#C89841 + 深咖#4A3829 + 暖橙#F77E21 + 米白#F9F6F0
   对标贝斯特斯框架，适配银发业务
   ============================================ */

/* --- CSS Variables --- */
:root {
  --gold: #C89841;
  --gold-light: #D4AA5A;
  --brown: #4A3829;
  --brown-light: #5C4A38;
  --orange: #F77E21;
  --cream: #F9F6F0;
  --cream-dark: #EDE8DF;
  --white: #FFFFFF;
  --black: #1A1A1A;
  --gray: #666666;
  --gray-light: #999999;
  --gray-bg: #F5F3EF;
  --font-main: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: var(--font-main);
  color: var(--brown);
  background: var(--cream);
  line-height: 1.8;
  overflow-x: hidden;
}

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

ul, ol { list-style: none; }
img { max-width: 100%; display: block; }

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

/* --- Top Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 0 40px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
  background: rgba(74, 56, 41, 0.0);
}

.navbar.scrolled {
  background: rgba(74, 56, 41, 0.95);
  box-shadow: 0 2px 20px rgba(0,0,0,0.15);
  backdrop-filter: blur(10px);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo .logo-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 2px;
}

.nav-logo .logo-sub {
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 1px;
  display: block;
}

.nav-logo .logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--white);
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 1px;
  position: relative;
  padding: 8px 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--gold);
}

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

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

/* --- Nav Dropdown --- */
.nav-dropdown {
  position: relative;
}

.nav-dropdown > a {
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: rgba(30, 38, 48, 0.96);
  backdrop-filter: blur(12px);
  border-radius: 8px;
  padding: 16px 20px;
  min-width: 320px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 24px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
  z-index: 1001;
}

.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background: rgba(30, 38, 48, 0.96);
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  padding: 8px 0;
  display: block;
  white-space: nowrap;
  transition: all 0.2s;
  position: relative;
}

.dropdown-menu a::after {
  display: none;
}

.dropdown-menu a:hover {
  color: var(--gold);
  padding-left: 8px;
}


/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
}

.nav-toggle span {
  width: 26px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
}

/* --- Hero Banner / Carousel --- */
.hero-banner {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide .slide-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  filter: brightness(0.4);
}

.hero-slide .slide-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  max-width: 900px;
  padding: 0 40px;
}

.hero-slide .slide-tag {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(200, 152, 65, 0.3);
  border: 1px solid var(--gold);
  border-radius: 30px;
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.hero-slide .slide-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero-slide .slide-desc {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  margin-bottom: 36px;
}

.hero-slide .slide-btn {
  display: inline-block;
  padding: 14px 40px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  color: var(--white);
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(200, 152, 65, 0.4);
}

.hero-slide .slide-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(200, 152, 65, 0.5);
}

/* Banner Navigation Dots */
.hero-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.hero-dots .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: var(--transition);
}

.hero-dots .dot.active {
  background: var(--gold);
  width: 36px;
  border-radius: 6px;
}

/* Banner Arrows */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(5px);
}

.hero-arrow:hover {
  background: rgba(200, 152, 65, 0.3);
  border-color: var(--gold);
}

.hero-arrow.prev { left: 30px; }
.hero-arrow.next { right: 30px; }

/* --- Featured News Block --- */
.featured-news-section {
  padding: 70px 0 40px;
  background: var(--cream);
  position: relative;
}

.featured-news-section .section-header {
  position: relative;
}

.featured-news-section .section-header::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--orange));
  border-radius: 2px;
  margin: 20px auto 0;
}

.featured-news-wrap {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  align-items: stretch;
}

/* --- Main Featured Card --- */
.featured-news-main {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background-size: cover;
  background-position: center;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.featured-news-main::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,26,0.88) 0%, rgba(26,26,26,0.25) 50%, rgba(26,26,26,0.05) 100%);
  z-index: 1;
  transition: all 0.4s ease;
}

.featured-news-main::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--orange));
  z-index: 3;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.featured-news-main:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.22);
}

.featured-news-main:hover::before {
  background: linear-gradient(to top, rgba(26,26,26,0.92) 0%, rgba(26,26,26,0.3) 55%, rgba(26,26,26,0.08) 100%);
}

.featured-news-main:hover::after {
  transform: scaleX(1);
}

.featured-news-main .fn-content {
  position: relative;
  z-index: 2;
  padding: 32px;
}

.featured-news-main .fn-tag {
  display: inline-block;
  padding: 5px 14px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  border-radius: 4px;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.featured-news-main .fn-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
  margin-bottom: 12px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.featured-news-main .fn-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-news-main .fn-date {
  font-size: 12px;
  color: rgba(255,255,255,0.45);
  margin-top: 16px;
  letter-spacing: 1px;
}

/* --- Side News Column --- */
.featured-news-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.featured-news-item {
  display: flex;
  gap: 16px;
  padding: 18px;
  background: var(--white);
  border-radius: 12px;
  border: 1px solid rgba(200,152,65,0.06);
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.featured-news-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--gold), var(--orange));
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.featured-news-item:hover {
  border-color: rgba(200,152,65,0.2);
  transform: translateX(6px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.08);
}

.featured-news-item:hover::before {
  transform: scaleY(1);
}

.featured-news-item .fn-thumb {
  width: 110px;
  height: 85px;
  border-radius: 10px;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.featured-news-item:hover .fn-thumb {
  transform: scale(1.04);
}

.featured-news-item .fn-info {
  flex: 1;
  min-width: 0;
}

.featured-news-item .fn-info .fn-tag {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(200,152,65,0.08);
  color: var(--gold);
  font-size: 11px;
  font-weight: 600;
  border-radius: 3px;
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.featured-news-item .fn-info .fn-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--brown);
  line-height: 1.5;
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  transition: color 0.2s;
}

.featured-news-item:hover .fn-info .fn-title {
  color: var(--gold);
}

.featured-news-item .fn-info .fn-date {
  font-size: 12px;
  color: var(--gray-light);
  letter-spacing: 0.5px;
}

@media (max-width: 768px) {
  .featured-news-wrap {
    grid-template-columns: 1fr;
  }
  .featured-news-main {
    min-height: 280px;
  }
  .featured-news-main .fn-title {
    font-size: 20px;
  }
  .featured-news-main .fn-content {
    padding: 24px;
  }
  .featured-news-item .fn-thumb {
    width: 90px;
    height: 70px;
  }
}

/* --- Slogan Section --- */
.slogan-section {
  padding: 100px 0;
  background: var(--cream);
  text-align: center;
  position: relative;
}

.slogan-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--orange));
}

.slogan-main {
  font-size: 36px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 16px;
  letter-spacing: 3px;
}

.slogan-main span {
  color: var(--gold);
}

.slogan-sub {
  font-size: 16px;
  color: var(--gray);
  line-height: 1.8;
}

.slogan-sub span {
  display: inline-block;
  margin: 0 8px;
  color: var(--gold);
  font-weight: 500;
}

/* --- Section Common Styles --- */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.section-desc {
  font-size: 16px;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Four Core Business Cards --- */
.business-section {
  background: var(--white);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.business-card {
  background: var(--cream);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition);
  position: relative;
  cursor: pointer;
}

.business-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(74, 56, 41, 0.12);
}

.business-card .card-img {
  height: 220px;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.business-card .card-img::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60%;
  background: linear-gradient(transparent, rgba(74, 56, 41, 0.7));
}

.business-card .card-icon {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--white);
  z-index: 2;
  box-shadow: 0 4px 15px rgba(200, 152, 65, 0.4);
}

.business-card .card-body {
  padding: 24px;
}

.business-card .card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 10px;
}

.business-card .card-text {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 16px;
}

.business-card .card-link {
  font-size: 13px;
  color: var(--gold);
  font-weight: 600;
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.business-card .card-link:hover {
  gap: 12px;
}

/* --- Project Cases --- */
.cases-section {
  background: var(--cream);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.case-card {
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: var(--transition);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.case-card .case-img {
  height: 260px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.case-card .case-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(transparent 40%, rgba(74, 56, 41, 0.85));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  opacity: 0;
  transition: var(--transition);
}

.case-card:hover .case-overlay {
  opacity: 1;
}

.case-card .case-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  background: rgba(200, 152, 65, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--white);
  opacity: 0;
  transition: var(--transition);
}

.case-card:hover .case-play {
  opacity: 1;
}

.case-card .case-info {
  padding: 18px 20px;
  background: var(--white);
}

.case-card .case-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--brown);
  margin-bottom: 6px;
}

.case-card .case-tag {
  font-size: 12px;
  color: var(--gold);
}

/* --- Partners Section --- */
.partners-section {
  background: var(--white);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.partner-item {
  height: 100px;
  background: var(--cream);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--brown);
  font-weight: 600;
  transition: var(--transition);
  border: 1px solid transparent;
  padding: 10px;
  text-align: center;
}

.partner-item:hover {
  border-color: var(--gold);
  box-shadow: 0 4px 15px rgba(200, 152, 65, 0.15);
  color: var(--gold);
}

/* --- News Section --- */
.news-section {
  background: var(--cream);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.news-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.08);
}

.news-card .news-img {
  height: 200px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.news-card .news-date {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: var(--gold);
  color: var(--white);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
}

.news-card .news-body {
  padding: 24px;
}

.news-card .news-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--brown);
  margin-bottom: 10px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card .news-excerpt {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- News Page: Filter Bar --- */
.news-filter-section {
  padding: 40px 0 0;
  background: var(--cream);
}

.news-filter-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-btn {
  padding: 10px 28px;
  border: 1px solid rgba(200,152,65,0.2);
  border-radius: 30px;
  background: var(--white);
  color: var(--brown);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 1px;
}

.filter-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--gold), var(--orange));
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(200,152,65,0.3);
}

/* --- News Page: Featured Top --- */
.news-featured-section {
  padding: 40px 0 60px;
  background: var(--cream);
}

.news-featured-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.news-featured-main {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background-size: cover;
  background-position: center;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.news-featured-main::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,26,0.85) 0%, rgba(26,26,26,0.2) 55%, transparent 100%);
  z-index: 1;
  transition: all 0.4s ease;
}

.news-featured-main:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.2);
}

.news-featured-main:hover::before {
  background: linear-gradient(to top, rgba(26,26,26,0.9) 0%, rgba(26,26,26,0.3) 60%, rgba(26,26,26,0.05) 100%);
}

.nf-overlay {
  position: relative;
  z-index: 2;
  padding: 32px;
}

.nf-tag {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  border-radius: 4px;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.nf-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
  margin-bottom: 10px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.nf-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.nf-date {
  display: inline-block;
  font-size: 12px;
  color: rgba(255,255,255,0.45);
  margin-top: 14px;
  letter-spacing: 1px;
}

.news-featured-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-featured-item {
  display: flex;
  gap: 16px;
  padding: 18px;
  background: var(--white);
  border-radius: 12px;
  border: 1px solid rgba(200,152,65,0.06);
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
  align-items: center;
  flex: 1;
  position: relative;
  overflow: hidden;
}

.news-featured-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--gold), var(--orange));
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.news-featured-item:hover {
  border-color: rgba(200,152,65,0.2);
  transform: translateX(4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.news-featured-item:hover::before {
  transform: scaleY(1);
}

.nfi-img {
  width: 120px;
  height: 90px;
  border-radius: 10px;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.news-featured-item:hover .nfi-img {
  transform: scale(1.04);
}

.nfi-info {
  flex: 1;
  min-width: 0;
}

.nfi-tag {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(200,152,65,0.08);
  color: var(--gold);
  font-size: 11px;
  font-weight: 600;
  border-radius: 3px;
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.nfi-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--brown);
  line-height: 1.5;
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  transition: color 0.2s;
}

.news-featured-item:hover .nfi-title {
  color: var(--gold);
}

.nfi-date {
  font-size: 12px;
  color: var(--gray-light);
  letter-spacing: 0.5px;
}

/* --- News Page: List Section --- */
.news-list-section {
  background: var(--white);
  padding-top: 60px;
}

/* --- News Page: Pagination --- */
.news-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 40px 0 20px;
}

.page-btn {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(200,152,65,0.2);
  border-radius: 8px;
  background: var(--white);
  color: var(--brown);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.page-btn.active {
  background: linear-gradient(135deg, var(--gold), var(--orange));
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 3px 10px rgba(200,152,65,0.25);
}

@media (max-width: 768px) {
  .news-featured-grid {
    grid-template-columns: 1fr;
  }
  .news-featured-main {
    min-height: 260px;
  }
  .nf-title {
    font-size: 18px;
  }
  .nfi-img {
    width: 90px;
    height: 70px;
  }
  .filter-btn {
    padding: 8px 18px;
    font-size: 13px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Footer --- */
.footer {
  background: var(--brown);
  color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand .footer-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--white);
  font-weight: 900;
}

.footer-brand .footer-logo .logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.footer-brand .footer-desc {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-col h4 {
  color: var(--gold);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--gold);
  padding-left: 4px;
}

.footer-contact .contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 14px;
}

.footer-contact .contact-icon {
  color: var(--gold);
  font-size: 16px;
  margin-top: 2px;
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* --- Sub-page Hero Banner --- */
.page-hero {
  height: 400px;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(74, 56, 41, 0.65);
}

.page-hero .hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
}

.page-hero .hero-content h1 {
  font-size: 42px;
  font-weight: 700;
  letter-spacing: 4px;
  margin-bottom: 12px;
}

.page-hero .hero-content p {
  font-size: 16px;
  color: rgba(255,255,255,0.8);
  letter-spacing: 2px;
}

/* --- Service Detail Page --- */
.service-block {
  padding: 80px 0;
}

.service-block:nth-child(even) {
  background: var(--white);
}

.service-block:nth-child(odd) {
  background: var(--cream);
}

.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.service-detail.reverse {
  direction: rtl;
}

.service-detail.reverse > * {
  direction: ltr;
}

.service-detail .service-img {
  height: 400px;
  border-radius: 16px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.service-detail .service-info h3 {
  font-size: 28px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 20px;
}

.service-detail .service-info p {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.9;
  margin-bottom: 16px;
}

.service-detail .service-info .feature-list {
  margin-top: 20px;
}

.service-detail .service-info .feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 15px;
  color: var(--brown);
}

.feature-list li .check {
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--white);
  flex-shrink: 0;
}

/* --- Case Filter & Grid --- */
.case-filter {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.case-filter .filter-btn {
  padding: 10px 28px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--cream-dark);
  background: var(--white);
  color: var(--brown);
  cursor: pointer;
  transition: var(--transition);
}

.case-filter .filter-btn:hover,
.case-filter .filter-btn.active {
  background: linear-gradient(135deg, var(--gold), var(--orange));
  color: var(--white);
  border-color: transparent;
}

/* --- About Page --- */
.about-intro {
  padding: 80px 0;
  background: var(--cream);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-grid .about-img {
  height: 450px;
  border-radius: 16px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
  position: relative;
}

.about-grid .about-img::after {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 100px;
  height: 100px;
  border: 3px solid var(--gold);
  border-radius: 16px;
  z-index: -1;
}

.about-text h3 {
  font-size: 28px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 20px;
}

.about-text p {
  font-size: 15px;
  color: var(--gray);
  line-height: 2;
  margin-bottom: 14px;
}

/* Mission / Vision / Values */
.mvv-section {
  padding: 80px 0;
  background: var(--white);
}

.mvv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.mvv-card {
  text-align: center;
  padding: 50px 30px;
  background: var(--cream);
  border-radius: 16px;
  transition: var(--transition);
}

.mvv-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 30px rgba(0,0,0,0.08);
}

.mvv-card .mvv-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--white);
}

.mvv-card h4 {
  font-size: 20px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 16px;
}

.mvv-card p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.8;
}

/* Timeline */
.timeline-section {
  padding: 80px 0;
  background: var(--cream);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: var(--gold);
}

.timeline-item {
  display: flex;
  align-items: center;
  margin-bottom: 40px;
  position: relative;
}

.timeline-item:nth-child(odd) {
  flex-direction: row;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-content {
  width: 45%;
  background: var(--white);
  padding: 24px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.timeline-content .time {
  font-size: 13px;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 6px;
}

.timeline-content h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--brown);
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.7;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: var(--gold);
  border-radius: 50%;
  border: 3px solid var(--white);
  box-shadow: 0 0 0 3px var(--gold);
  z-index: 2;
}

/* Team */
.team-section {
  padding: 80px 0;
  background: var(--white);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  text-align: center;
  padding: 30px 20px;
  background: var(--cream);
  border-radius: 16px;
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 25px rgba(0,0,0,0.08);
}

.team-card .avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--white);
}

.team-card h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 6px;
}

.team-card .role {
  font-size: 13px;
  color: var(--gold);
  margin-bottom: 10px;
}

.team-card p {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
}

/* --- Contact Page --- */
.coop-section {
  padding: 80px 0;
  background: var(--cream);
}

.coop-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.coop-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--white);
  border-radius: 16px;
  transition: var(--transition);
  border: 2px solid transparent;
}

.coop-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(200, 152, 65, 0.15);
}

.coop-card .coop-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--white);
}

.coop-card h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 12px;
}

.coop-card p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
}

/* Contact Info */
/* Contact Info */

/* --- Partners Link Section (商务合作页) --- */
.partners-link-section {
  padding: 80px 0 60px;
  background: var(--cream);
}

.pl-group {
  margin-bottom: 40px;
}

.pl-group-label {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 2px;
  padding: 6px 18px;
  background: rgba(200,152,65,0.08);
  border-left: 3px solid var(--gold);
  border-radius: 0 6px 6px 0;
  margin-bottom: 20px;
}

.pl-list {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.pl-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--white);
  border: 1px solid rgba(200,152,65,0.12);
  border-radius: 10px;
  text-decoration: none;
  color: var(--brown);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  overflow: hidden;
}

.pl-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(200,152,65,0.06), rgba(247,126,33,0.04));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pl-item:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(200,152,65,0.15);
  color: var(--gold);
}

.pl-item:hover::before {
  opacity: 1;
}

.pl-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.pl-name {
  font-size: 14px;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.pl-arrow {
  font-size: 13px;
  color: var(--gray-light);
  transition: color 0.3s, transform 0.3s;
  position: relative;
  z-index: 1;
}

.pl-item:hover .pl-arrow {
  color: var(--gold);
  transform: translate(2px, -2px);
}

.pl-tip {
  font-size: 13px;
  color: var(--gray-light);
  line-height: 1.8;
  padding: 16px 20px;
  background: rgba(200,152,65,0.04);
  border-radius: 8px;
  border: 1px dashed rgba(200,152,65,0.2);
  margin-top: 10px;
}

@media (max-width: 768px) {
  .pl-list {
    gap: 10px;
  }
  .pl-item {
    padding: 10px 16px;
    font-size: 13px;
  }
}

.contact-section {
  padding: 80px 0;
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-form {
  padding: 40px;
  background: var(--cream);
  border-radius: 16px;
}

.contact-form h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--brown);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--cream-dark);
  border-radius: 8px;
  font-size: 14px;
  font-family: var(--font-main);
  background: var(--white);
  color: var(--brown);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
  outline: none;
  box-shadow: 0 0 0 3px rgba(200, 152, 65, 0.15);
}

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

.submit-btn {
  display: inline-block;
  padding: 14px 48px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  color: var(--white);
  border: none;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 1px;
  transition: var(--transition);
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(200, 152, 65, 0.4);
}

.contact-info {
  padding: 40px;
}

.contact-info h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 30px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.info-item .info-icon {
  width: 48px;
  height: 48px;
  background: var(--cream);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--gold);
  flex-shrink: 0;
}

.info-item .info-text h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--brown);
  margin-bottom: 4px;
}

.info-item .info-text p {
  font-size: 14px;
  color: var(--gray);
}

.map-container {
  height: 250px;
  border-radius: 12px;
  overflow: hidden;
  margin-top: 20px;
  background: var(--cream-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray);
  font-size: 14px;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
  .business-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .partners-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .coop-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 0 20px;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--brown);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px;
    transition: right 0.4s ease;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-dropdown .dropdown-menu {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-slide .slide-title {
    font-size: 28px;
  }

  .hero-slide .slide-desc {
    font-size: 14px;
  }

  .slogan-main {
    font-size: 24px;
  }

  .section-title {
    font-size: 28px;
  }

  .business-grid,
  .cases-grid,
  .news-grid,
  .mvv-grid,
  .team-grid,
  .coop-grid {
    grid-template-columns: 1fr;
  }

  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .service-detail,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .service-detail.reverse {
    direction: ltr;
  }

  .hero-arrow { display: none; }

  .page-hero { height: 300px; }
  .page-hero .hero-content h1 { font-size: 28px; }

  .timeline-item {
    flex-direction: column !important;
    text-align: center;
  }
  .timeline::before {
    left: 20px;
  }
  .timeline-dot {
    left: 20px;
  }
  .timeline-content {
    width: 100%;
    margin-left: 50px;
    text-align: left;
  }
}