/* ==================== 高端配色方案 - 与首页一致 ==================== */
:root {--primary-dark:#0a0a0a;--primary-charcoal:#1a1a1a;--secondary-dark:#2d2d2d;--gold-primary:#c9a962;--gold-light:#e8d5a3;--gold-dark:#a08440;--cream:#f5f3f0;--warm-white:#faf9f7;--text-gray:#666666;--text-light:#999999;--overlay-dark:rgba(10,10,10,0.85);--font-primary:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--transition-smooth:all 0.4s cubic-bezier(0.4,0,0.2,1);--shadow-elegant:0 20px 60px rgba(0,0,0,0.3);}
* {margin:0;padding:0;box-sizing:border-box;}
html {scroll-behavior:smooth;}
body {font-family:var(--font-primary);background:var(--warm-white);color:var(--primary-charcoal);line-height:1.6;overflow-x:hidden;}

/* ==================== 专题Hero区域 - 沉浸式视频感 ==================== */
.case-hero {position:relative;min-height:100vh;overflow:hidden;display:flex;align-items:center;}
.case-hero-bg {position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#0a1628 0%,#1a2a4a 50%,#0a1628 100%);}
.case-hero-bg::before {content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23c9a962' fill-opacity='0.03'/%3E%3C/svg%3E");}
.hero-glow {position:absolute;width:600px;height:600px;background:radial-gradient(circle,rgba(201,169,98,0.15) 0%,transparent 70%);top:-200px;right:-100px;pointer-events:none;}
.hero-glow-2 {position:absolute;width:400px;height:400px;background:radial-gradient(circle,rgba(58,123,213,0.1) 0%,transparent 70%);bottom:-100px;left:-100px;pointer-events:none;}
.case-hero-content {position:relative;z-index:2;max-width:1400px;margin:0 auto;padding:160px 40px 80px;display:grid;grid-template-columns:1.2fr 1fr;gap:80px;align-items:center;}
.hero-badge {display:inline-flex;align-items:center;gap:10px;background:rgba(201,169,98,0.15);border:1px solid rgba(201,169,98,0.3);padding:10px 24px;border-radius:50px;margin-bottom:30px;}
.badge-dot {width:8px;height:8px;background:var(--gold-primary);border-radius:50%;animation:pulse 2s infinite;}
@keyframes pulse {0%,100% {opacity:1;}
50% {opacity:0.4;}
}
.badge-text {color:var(--gold-primary);font-size:0.85rem;letter-spacing:2px;text-transform:uppercase;}
.hero-title {font-size:3.8rem;font-weight:700;color:white;line-height:1.15;margin-bottom:24px;}
.hero-title span {background:linear-gradient(135deg,var(--gold-primary),var(--gold-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.hero-desc {font-size:1.15rem;color:rgba(255,255,255,0.85);line-height:1.9;margin-bottom:40px;max-width:540px;}
.hero-meta {display:flex;gap:40px;margin-bottom:40px;}
.meta-item {display:flex;flex-direction:column;gap:6px;}
.meta-label {font-size:0.75rem;color:rgba(255,255,255,0.5);letter-spacing:2px;text-transform:uppercase;}
.meta-value {font-size:1.1rem;color:white;font-weight:600;}
.hero-cta-group {display:flex;gap:20px;flex-wrap:wrap;}
.hero-preview {position:relative;}
.preview-frame {position:relative;border-radius:12px;overflow:hidden;box-shadow:0 40px 80px rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.1);}
.preview-frame img {width:100%;height:auto;display:block;}
.preview-overlay {position:absolute;bottom:0;left:0;right:0;padding:30px;background:linear-gradient(to top,rgba(10,10,10,0.9) 0%,transparent 100%);}
.preview-tag {display:inline-block;background:var(--gold-primary);color:var(--primary-dark);padding:6px 16px;font-size:0.8rem;font-weight:700;border-radius:4px;margin-bottom:10px;}
.preview-title {color:white;font-size:1.3rem;font-weight:600;}
.scroll-indicator {position:absolute;bottom:40px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;color:rgba(255,255,255,0.5);font-size:0.75rem;letter-spacing:3px;animation:bounce 2s infinite;z-index:10;}
@keyframes bounce {0%,20%,50%,80%,100% {transform:translateX(-50%) translateY(0);}
40% {transform:translateX(-50%) translateY(-10px);}
60% {transform:translateX(-50%) translateY(-5px);}
}
.hero-left {background: #40403f;opacity: 0.9;width: 650px;padding: 50px;border-radius: 5%;}


/* ==================== 展会信息卡片 - 悬浮数据面板 ==================== */
.info-panel {position:relative;z-index:10;margin-top:-60px;padding:0 40px;}
.info-panel-inner {max-width:1400px;margin:0 auto;background:white;border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,0.1);padding:40px;display:grid;grid-template-columns:repeat(4,1fr);gap:30px;border:1px solid rgba(0,0,0,0.05);}
.info-item {text-align:center;padding:20px;position:relative;}
.info-item:not(:last-child)::after {content:'';position:absolute;right:0;top:50%;transform:translateY(-50%);width:1px;height:60px;background:linear-gradient(to bottom,transparent,rgba(0,0,0,0.1),transparent);}
.info-icon {width:56px;height:56px;background:linear-gradient(135deg,var(--cream),white);border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:var(--gold-dark);}
.info-number {font-size:2.2rem;font-weight:700;color:var(--primary-dark);line-height:1;margin-bottom:8px;}
.info-number span {font-size:1rem;color:var(--text-light);font-weight:400;}
.info-label {font-size:0.9rem;color:var(--text-gray);}
/* ==================== 通用容器 ==================== */
.container {max-width:1400px;margin:0 auto;padding:0 40px;}
.section-header {text-align:center;margin-bottom:70px;}
.section-tag {color:var(--gold-primary);font-size:0.85rem;letter-spacing:3px;text-transform:uppercase;margin-bottom:16px;display:block;}
.section-title {font-size:2.8rem;font-weight:700;color:var(--primary-dark);margin-bottom:20px;line-height:1.3;}
.section-desc {font-size:1.1rem;color:var(--text-gray);max-width:700px;margin:0 auto;line-height:1.8;}
/* ==================== 方案解析 - 创新分屏布局 ==================== */
.analysis-section {padding:120px 0;background:var(--cream);}
.analysis-grid {display:grid;grid-template-columns:1fr 1fr;gap:0;align-items:stretch;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-elegant);}
.analysis-visual {position:relative;min-height:600px;overflow:hidden;}
.analysis-visual img {width:100%;height:100%;object-fit:cover;transition:transform 0.8s ease;}
.analysis-visual:hover img {transform:scale(1.05);}
.analysis-visual-overlay {position:absolute;bottom:0;left:0;right:0;padding:40px;background:linear-gradient(to top,rgba(10,10,10,0.85) 0%,transparent 100%);}
.visual-tag {display:inline-block;background:var(--gold-primary);color:var(--primary-dark);padding:6px 16px;font-size:0.75rem;font-weight:700;border-radius:4px;margin-bottom:12px;}
.visual-title {color:white;font-size:1.8rem;font-weight:700;}
.analysis-content {background:white;padding:60px;display:flex;flex-direction:column;justify-content:center;}
.analysis-content .section-tag {text-align:left;}
.analysis-content .section-title {text-align:left;font-size:2.2rem;margin-bottom:30px;}
.analysis-content .section-title span {color:var(--gold-primary);font-weight:300;}
.analysis-text {color:var(--text-gray);font-size:1.05rem;line-height:2;margin-bottom:40px;}
.analysis-features {display:flex;flex-direction:column;gap:24px;}
.feature-row {display:flex;align-items:flex-start;gap:20px;padding:20px;background:var(--cream);border-radius:12px;transition:var(--transition-smooth);border-left:3px solid transparent;}
.feature-row:hover {border-left-color:var(--gold-primary);transform:translateX(8px);}
.feature-icon {width:48px;height:48px;background:linear-gradient(135deg,var(--primary-charcoal),var(--secondary-dark));border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--gold-primary);flex-shrink:0;}
.feature-text h4 {font-size:1.1rem;font-weight:600;color:var(--primary-dark);margin-bottom:6px;}
.feature-text p {font-size:0.95rem;color:var(--text-gray);line-height:1.7;}
/* ==================== 文博会介绍 - 时间轴布局 ==================== */
.expo-intro {padding:120px 0;background:var(--primary-dark);color:white;position:relative;overflow:hidden;}
.expo-intro::before {content:'';position:absolute;top:-50%;right:-20%;width:800px;height:800px;background:radial-gradient(circle,rgba(201,169,98,0.08) 0%,transparent 70%);pointer-events:none;}
.expo-grid {display:grid;grid-template-columns:1fr 1.3fr;gap:100px;align-items:center;position:relative;z-index:1;}
.expo-content .section-tag {text-align:left;}
.expo-content .section-title {color:white;text-align:left;font-size:2.8rem;}
.expo-content .section-title span {color:var(--gold-primary);font-weight:300;}
.expo-text {color:rgba(255,255,255,0.75);font-size:1.05rem;line-height:2;margin-bottom:40px;}
.timeline {position:relative;padding-left:30px;}
.timeline::before {content:'';position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--gold-primary),transparent);}
.timeline-item {position:relative;padding-bottom:30px;}
.timeline-item::before {content:'';position:absolute;left:-36px;top:4px;width:12px;height:12px;background:var(--gold-primary);border-radius:50%;border:3px solid var(--primary-dark);box-shadow:0 0 0 3px var(--gold-primary);}
.timeline-year {font-size:0.8rem;color:var(--gold-primary);font-weight:600;letter-spacing:2px;margin-bottom:4px;}
.timeline-text {color:rgba(255,255,255,0.8);font-size:1rem;}
.expo-image {position:relative;}
.expo-image-frame {position:relative;border-radius:16px;overflow:hidden;box-shadow:0 30px 60px rgba(0,0,0,0.4);}
.expo-image-frame img {width:100%;height:500px;object-fit:cover;}
.expo-badge {position:absolute;bottom:-30px;left:-30px;background:var(--gold-primary);color:var(--primary-dark);padding:30px 40px;border-radius:12px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,0.3);}
.expo-badge-number {font-size:3.5rem;font-weight:700;display:block;line-height:1;}
.expo-badge-text {font-size:0.85rem;font-weight:600;letter-spacing:2px;text-transform:uppercase;}
/* ==================== 方案展示 - 沉浸式画廊 ==================== */
.gallery-section {padding:120px 0;background:white;}
.gallery-intro {text-align:center;margin-bottom:60px;}
.gallery-grid {display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:280px;gap:20px;}
.gallery-item {position:relative;border-radius:12px;overflow:hidden;cursor:pointer;box-shadow:0 8px 30px rgba(0,0,0,0.1);transition:var(--transition-smooth);}
.gallery-item:hover {transform:translateY(-8px);box-shadow:0 20px 60px rgba(0,0,0,0.2);}
.gallery-item img {width:100%;height:100%;object-fit:cover;transition:transform 0.6s ease;}
.gallery-item:hover img {transform:scale(1.08);}
.gallery-item-overlay {position:absolute;inset:0;background:linear-gradient(to top,rgba(10,10,10,0.8) 0%,rgba(10,10,10,0.2) 40%,transparent 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:30px;opacity:0;transition:opacity 0.4s ease;}
.gallery-item:hover .gallery-item-overlay {opacity:1;}
.gallery-item-title {color:white;font-size:1.2rem;font-weight:600;margin-bottom:6px;}
.gallery-item-desc {color:rgba(255,255,255,0.7);font-size:0.9rem;}
.gallery-zoom-icon {position:absolute;top:20px;right:20px;width:44px;height:44px;background:rgba(255,255,255,0.15);backdrop-filter:blur(10px);border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;opacity:0;transition:var(--transition-smooth);}
.gallery-item:hover .gallery-zoom-icon {opacity:1;}
/* 网格布局 */.g-item-1 {grid-column:span 7;grid-row:span 2;}
.g-item-2 {grid-column:span 5;}
.g-item-3 {grid-column:span 5;}
.g-item-4 {grid-column:span 6;grid-row:span 2;}
.g-item-5 {grid-column:span 6;grid-row:span 2;}
/* ==================== 大图弹窗 ==================== */
.lightbox {position:fixed;inset:0;z-index:9999;background:rgba(10,10,10,0.95);backdrop-filter:blur(20px);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all 0.4s ease;padding:40px;}
.lightbox.active {opacity:1;visibility:visible;}
.lightbox-img {max-width:90%;max-height:85vh;border-radius:8px;box-shadow:0 30px 80px rgba(0,0,0,0.5);transform:scale(0.9);transition:transform 0.4s ease;}
.lightbox.active .lightbox-img {transform:scale(1);}
.lightbox-close {position:absolute;top:30px;right:30px;width:50px;height:50px;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;cursor:pointer;transition:var(--transition-smooth);}
.lightbox-close:hover {background:var(--gold-primary);border-color:var(--gold-primary);color:var(--primary-dark);}
.lightbox-caption {position:absolute;bottom:40px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,0.8);font-size:1rem;text-align:center;}
/* ==================== 平面布局 - 创新展示 ==================== */
.layout-section {padding:120px 0;background:var(--cream);}
.layout-wrapper {display:grid;grid-template-columns:1.3fr 1fr;gap:60px;align-items:center;}
.layout-visual {position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-elegant);}
.layout-visual img {width:100%;height:auto;display:block;}
.layout-hotspot {position:absolute;width:32px;height:32px;cursor:pointer;}
.hotspot-dot {width:100%;height:100%;background:var(--gold-primary);border-radius:50%;animation:hotspotPulse 2s infinite;position:relative;}
.hotspot-dot::after {content:'';position:absolute;inset:-8px;border:2px solid var(--gold-primary);border-radius:50%;animation:hotspotRing 2s infinite;}
@keyframes hotspotPulse {0%,100% {transform:scale(1);}
50% {transform:scale(1.1);}
}
@keyframes hotspotRing {0% {transform:scale(0.8);opacity:1;}
100% {transform:scale(1.5);opacity:0;}
}
.hotspot-tooltip {position:absolute;bottom:45px;left:50%;transform:translateX(-50%);background:var(--primary-dark);color:white;padding:10px 18px;border-radius:8px;font-size:0.85rem;white-space:nowrap;opacity:0;visibility:hidden;transition:var(--transition-smooth);box-shadow:0 8px 30px rgba(0,0,0,0.3);}
.hotspot-tooltip::after {content:'';position:absolute;top:100%;left:50%;transform:translateX(-50%);border:6px solid transparent;border-top-color:var(--primary-dark);}
.layout-hotspot:hover .hotspot-tooltip {opacity:1;visibility:visible;}
.layout-details h3 {font-size:2rem;font-weight:700;color:var(--primary-dark);margin-bottom:20px;}
.layout-details h3 span {color:var(--gold-primary);}
.layout-list {display:flex;flex-direction:column;gap:20px;}
.layout-item {display:flex;align-items:flex-start;gap:16px;padding:20px;background:white;border-radius:12px;transition:var(--transition-smooth);border:1px solid rgba(0,0,0,0.05);}
.layout-item:hover {box-shadow:0 8px 30px rgba(0,0,0,0.08);transform:translateX(8px);}
.layout-num {width:36px;height:36px;background:linear-gradient(135deg,var(--gold-primary),var(--gold-dark));border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;font-weight:700;font-size:0.9rem;flex-shrink:0;}
.layout-text h4 {font-size:1.05rem;font-weight:600;color:var(--primary-dark);margin-bottom:4px;}
.layout-text p {font-size:0.9rem;color:var(--text-gray);line-height:1.6;}
/* ==================== 公司实力 - 数据驱动 ==================== */
.strength-section {padding:120px 0;background:var(--primary-dark);color:white;position:relative;overflow:hidden;}
.strength-section::before {content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c9a962' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");}
.strength-grid {display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:80px;position:relative;z-index:1;}
.strength-card {background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.08);border-radius:16px;padding:40px 30px;text-align:center;transition:var(--transition-smooth);position:relative;overflow:hidden;}
.strength-card::before {content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--gold-primary),var(--gold-light));transform:scaleX(0);transition:transform 0.4s ease;}
.strength-card:hover {background:rgba(255,255,255,0.06);transform:translateY(-8px);border-color:rgba(201,169,98,0.2);}
.strength-card:hover::before {transform:scaleX(1);}
.strength-icon {width:64px;height:64px;background:linear-gradient(135deg,rgba(201,169,98,0.2),rgba(201,169,98,0.05));border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;color:var(--gold-primary);}
.strength-number {font-size:2.8rem;font-weight:700;color:var(--gold-primary);line-height:1;margin-bottom:10px;}
.strength-label {color:rgba(255,255,255,0.7);font-size:0.95rem;letter-spacing:1px;}
.qualification-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;z-index:1;}
.qual-card {display:flex;align-items:center;gap:20px;padding:30px;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.06);border-radius:12px;transition:var(--transition-smooth);}
.qual-card:hover {background:rgba(255,255,255,0.06);border-color:rgba(201,169,98,0.15);}
.qual-icon {width:52px;height:52px;background:linear-gradient(135deg,var(--gold-primary),var(--gold-dark));border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--primary-dark);flex-shrink:0;}
.qual-text h4 {color:white;font-size:1.1rem;font-weight:600;margin-bottom:6px;}
.qual-text p {color:rgba(255,255,255,0.6);font-size:0.9rem;line-height:1.5;}
/* ==================== 服务网络 - 地图式展示 ==================== */
.network-section {padding:120px 0;background:white;}
.network-grid {display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:60px;}
.network-card {background:var(--cream);border-radius:16px;padding:40px 20px;text-align:center;transition:var(--transition-smooth);border:1px solid rgba(0,0,0,0.05);position:relative;overflow:hidden;}
.network-card::after {content:'';position:absolute;bottom:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--gold-primary),var(--gold-light));transform:scaleX(0);transition:transform 0.4s ease;}
.network-card:hover {transform:translateY(-10px);box-shadow:var(--shadow-elegant);}
.network-card:hover::after {transform:scaleX(1);}
.network-city {font-size:1.4rem;font-weight:700;color:var(--primary-dark);margin-bottom:8px;}
.network-desc {font-size:0.9rem;color:var(--text-gray);margin-bottom:16px;}
.network-badge {display:inline-block;background:linear-gradient(135deg,var(--gold-primary),var(--gold-dark));color:var(--primary-dark);padding:6px 16px;border-radius:20px;font-size:0.8rem;font-weight:600;}
/* ==================== CTA区域 ==================== */
.cta-section {padding:120px 0;background:linear-gradient(135deg,var(--primary-dark) 0%,var(--secondary-dark) 100%);position:relative;overflow:hidden;}
.cta-section::before {content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c9a962' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");opacity:0.5;}
.cta-content {text-align:center;position:relative;z-index:1;max-width:800px;margin:0 auto;}
.cta-title {font-size:3rem;color:white;margin-bottom:24px;font-weight:700;}
.cta-title span {color:var(--gold-primary);}
.cta-desc {color:rgba(255,255,255,0.8);font-size:1.2rem;margin-bottom:50px;line-height:1.8;}
.cta-phone {font-size:2.5rem;color:var(--gold-primary);text-decoration:none;font-weight:700;letter-spacing:2px;display:block;margin-bottom:10px;}
.cta-phone-label {color:rgba(255,255,255,0.6);font-size:0.9rem;letter-spacing:2px;text-transform:uppercase;}

/* ==================== 面包屑 ==================== */
.breadcrumb {padding:120px 0 0;background:var(--cream);}
.breadcrumb-inner {max-width:1400px;margin:0 auto;padding:20px 40px;font-size:0.9rem;color:var(--text-gray);}
.breadcrumb-inner a {color:var(--text-gray);text-decoration:none;transition:var(--transition-smooth);}
.breadcrumb-inner a:hover {color:var(--gold-dark);}
.breadcrumb-sep {margin:0 10px;color:var(--text-light);}
/* ==================== 响应式设计 ==================== */
@media (max-width:1200px) {.case-hero-content {grid-template-columns:1fr;gap:50px;}
.hero-preview {max-width:600px;margin:0 auto;}
.info-panel-inner {grid-template-columns:repeat(2,1fr);}
.info-item:nth-child(2)::after {display:none;}
.analysis-grid {grid-template-columns:1fr;}
.analysis-visual {min-height:400px;}
.expo-grid {grid-template-columns:1fr;gap:60px;}
.expo-image {order:-1;}
.strength-grid {grid-template-columns:repeat(2,1fr);}
.qualification-grid {grid-template-columns:repeat(2,1fr);}
.network-grid {grid-template-columns:repeat(3,1fr);}
.footer-grid {grid-template-columns:repeat(2,1fr);}
.gallery-grid {grid-template-columns:repeat(6,1fr);grid-auto-rows:220px;}
.g-item-1 {grid-column:span 6;grid-row:span 2;}
.g-item-2 {grid-column:span 3;}
.g-item-3 {grid-column:span 3;}
.g-item-4 {grid-column:span 6;grid-row:span 1;}
.g-item-5 {grid-column:span 6;}
}
@media (max-width:1024px) {.header-inner {padding:0 20px;}
.nav-menu {position:fixed;top:0;right:-100%;width:80%;max-width:400px;height:100vh;background:var(--primary-dark);flex-direction:column;padding:100px 40px;gap:30px;transition:right 0.4s ease;box-shadow:-10px 0 50px rgba(0,0,0,0.5);}
.nav-menu.active {right:0;}
.mobile-menu-btn {display:flex;}
.mobile-menu-btn.active span:nth-child(1) {transform:rotate(45deg) translate(5px,5px);}
.mobile-menu-btn.active span:nth-child(2) {opacity:0;}
.mobile-menu-btn.active span:nth-child(3) {transform:rotate(-45deg) translate(7px,-6px);}
.hero-title {font-size:2.8rem;}
.layout-wrapper {grid-template-columns:1fr;}
}
@media (max-width:768px) {.hero-title {font-size:2.2rem;}
.hero-meta {flex-direction:column;gap:20px;}
.hero-cta-group {flex-direction:column;}
.btn-primary,.btn-outline {width:100%;text-align:center;}
.info-panel {margin-top:-30px;padding:0 20px;}
.info-panel-inner {grid-template-columns:1fr;padding:30px 20px;}
.info-item::after {display:none !important;}
.section-title {font-size:2rem;}
.strength-grid {grid-template-columns:1fr;}
.qualification-grid {grid-template-columns:1fr;}
.network-grid {grid-template-columns:repeat(2,1fr);}
.gallery-grid {grid-template-columns:1fr;grid-auto-rows:250px;}
.g-item-1,.g-item-2,.g-item-3,.g-item-4,.g-item-5 {grid-column:span 1;grid-row:span 1;}
.expo-badge {left:20px;bottom:-20px;padding:20px 30px;}
.expo-badge-number {font-size:2.5rem;}
.cta-title {font-size:2rem;}
.cta-phone {font-size:1.8rem;}
.footer-grid {grid-template-columns:1fr;gap:40px;}
.footer-bottom {flex-direction:column;gap:15px;text-align:center;}
.float-cta {right:15px;bottom:80px;}
.float-btn {width:50px;height:50px;font-size:1.2rem;}
.lightbox {padding:20px;}
.lightbox-img {max-width:100%;}
.container {padding:0 20px;}
.case-hero-content {padding:140px 20px 60px;}
.analysis-content {padding:40px 30px;}
.hero-left {background: #40403f;opacity: 0.9;width: 100%;padding: 50px;border-radius: 5%;}

}
@media (max-width:480px) {.hero-title {font-size:1.8rem;}
.section-title {font-size:1.6rem;}
.network-grid {grid-template-columns:1fr;}
.expo-image-frame img {height:300px;}
.analysis-visual {min-height:280px;}
.hero-left {background: #40403f;opacity: 0.9;width: 100%;padding: 50px;border-radius: 5%;}

}