/* ==================== 高端配色方案 - 适配绿色主题 ==================== */
: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);--accent-green:#1a8c5e;--accent-green-light:#2db87a;--accent-green-dark:#0d5c3a;--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);--shadow-green:0 20px 60px rgba(26,140,94,0.2);}
* {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;}
/* ==================== 导航栏 ==================== */
/*.header {position:fixed;top:0;left:0;right:0;z-index:1000;transition:var(--transition-smooth);padding:20px 0;}
.header.scrolled {background:rgba(10,10,10,0.95);backdrop-filter:blur(20px);padding:15px 0;box-shadow:0 4px 30px rgba(0,0,0,0.3);}
.header-inner {max-width:1400px;margin:0 auto;padding:0 40px;display:flex;align-items:center;justify-content:space-between;}
.logo {display:flex;align-items:center;gap:12px;text-decoration:none;z-index:1001;}
.logo-icon {width:45px;height:45px;background:linear-gradient(135deg,var(--gold-primary),var(--gold-dark));border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;color:white;font-size:20px;box-shadow:0 4px 15px rgba(201,169,98,0.3);}
.logo-text {display:flex;flex-direction:column;}
.logo-name {font-size:1.4rem;font-weight:700;color:white;letter-spacing:2px;}
.logo-slogan {font-size:0.75rem;color:var(--gold-primary);letter-spacing:1px;text-transform:uppercase;}
.nav-menu {display:flex;align-items:center;gap:40px;list-style:none;}
.nav-link {color:rgba(255,255,255,0.9);text-decoration:none;font-size:0.95rem;font-weight:500;letter-spacing:1px;position:relative;padding:5px 0;transition:var(--transition-smooth);}
.nav-link::after {content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--gold-primary);transition:var(--transition-smooth);}
.nav-link:hover {color:var(--gold-primary);}
.nav-link:hover::after {width:100%;}
.header-cta {display:flex;align-items:center;gap:30px;}
.phone-info {text-align:right;}
.phone-label {display:block;font-size:0.7rem;color:var(--gold-primary);letter-spacing:1px;text-transform:uppercase;margin-bottom:2px;}
.phone-number {font-size:1.1rem;color:white;font-weight:600;letter-spacing:1px;}
.btn-primary {background:linear-gradient(135deg,var(--gold-primary),var(--gold-dark));color:var(--primary-dark);padding:14px 32px;border-radius:4px;text-decoration:none;font-weight:600;font-size:0.9rem;letter-spacing:1px;transition:var(--transition-smooth);border:none;cursor:pointer;box-shadow:0 4px 20px rgba(201,169,98,0.3);}
.btn-primary:hover {transform:translateY(-2px);box-shadow:0 8px 30px rgba(201,169,98,0.4);}
.btn-outline {background:transparent;color:white;padding:12px 30px;border:1px solid rgba(255,255,255,0.3);border-radius:4px;text-decoration:none;font-weight:500;transition:var(--transition-smooth);}
.btn-outline:hover {background:white;color:var(--primary-dark);}
.mobile-menu-btn {display:none;flex-direction:column;gap:6px;background:none;border:none;cursor:pointer;z-index:1001;padding:10px;}
.mobile-menu-btn span {display:block;width:28px;height:2px;background:white;transition:var(--transition-smooth);}*/
/* ==================== 案例Hero - 沉浸式视差 ==================== */
.case-hero {position:relative;min-height:100vh;overflow:hidden;display:flex;align-items:center;justify-content:center;}
.case-hero-bg {position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#0d5c3a 0%,#1a8c5e 30%,#0a3d2a 100%);background-position:center;background-size:cover;}
.case-hero-bg::before {content:'';position:absolute;top:0;left:0;right:0;bottom: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='%23ffffff' 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");}
.case-hero-overlay {position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,rgba(10,10,10,0.7) 0%,rgba(10,10,10,0.3) 50%,rgba(10,10,10,0.6) 100%);}
.case-hero-content {position:relative;z-index:2;max-width:1400px;margin:0 auto;padding:0 40px;width:100%;padding-top:100px;}
.case-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;backdrop-filter:blur(10px);}
.case-hero-badge svg {width:20px;height:20px;color:var(--gold-primary);}
.case-hero-badge span {color:var(--gold-primary);font-size:0.85rem;letter-spacing:2px;font-weight:600;}
.case-hero-title {font-size:3.5rem;font-weight:700;color:white;line-height:1.2;margin-bottom:24px;max-width:900px;}
.case-hero-title span {color:var(--gold-primary);font-weight:300;}
.case-hero-desc {font-size:1.2rem;color:rgba(255,255,255,0.8);max-width:700px;margin-bottom:40px;line-height:1.8;}
.case-hero-meta {display:flex;gap:40px;flex-wrap:wrap;margin-bottom:50px;}
.hero-meta-item {display:flex;align-items:center;gap:12px;}
.hero-meta-item svg {width:24px;height:24px;color:var(--gold-primary);}
.hero-meta-item div {color:rgba(255,255,255,0.9);}
.hero-meta-item div span {display:block;font-size:0.75rem;color:rgba(255,255,255,0.5);letter-spacing:1px;margin-bottom:2px;}
.hero-meta-item div strong {font-size:1rem;font-weight:600;}
.case-hero-cta {display:flex;gap:20px;flex-wrap:wrap;}
/* 浮动装饰元素 */.floating-elements {position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1;overflow:hidden;}
.float-circle {position:absolute;border-radius:50%;background:linear-gradient(135deg,rgba(201,169,98,0.1),rgba(201,169,98,0.02));animation:float 8s ease-in-out infinite;}
.float-circle:nth-child(1) {width:400px;height:400px;top:-100px;right:-100px;animation-delay:0s;}
.float-circle:nth-child(2) {width:300px;height:300px;bottom:10%;left:-80px;animation-delay:2s;}
.float-circle:nth-child(3) {width:200px;height:200px;top:40%;right:15%;animation-delay:4s;}
@keyframes float {0%,100% {transform:translateY(0) rotate(0deg);}
50% {transform:translateY(-30px) rotate(5deg);}
}
/* ==================== 项目概况 - 创意数据卡片 ==================== */
.overview-section {padding:100px 0;background:var(--cream);}
.container {max-width:1400px;margin:0 auto;padding:0 40px;}
.section-header {text-align:center;margin-bottom:60px;}
.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:2.6rem;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;}
/* 创意项目信息卡 */.project-info-cards {display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:60px;}
.info-card {background:white;padding:35px 25px;border-radius:4px;text-align:center;transition:var(--transition-smooth);border:1px solid rgba(0,0,0,0.05);position:relative;overflow:hidden;}
.info-card::before {content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--accent-green),var(--accent-green-light));transform:scaleX(0);transition:transform 0.4s ease;}
.info-card:hover {transform:translateY(-8px);box-shadow:var(--shadow-green);}
.info-card:hover::before {transform:scaleX(1);}
.info-card-icon {width:60px;height:60px;margin:0 auto 20px;background:linear-gradient(135deg,var(--accent-green-dark),var(--accent-green));border-radius:50%;display:flex;align-items:center;justify-content:center;}
.info-card-icon svg {width:28px;height:28px;color:white;}
.info-card-label {font-size:0.85rem;color:var(--text-light);margin-bottom:8px;letter-spacing:1px;}
.info-card-value {font-size:1.3rem;font-weight:700;color:var(--primary-dark);}
/* 项目描述 */.project-desc {background:white;padding:50px;border-radius:4px;border-left:4px solid var(--accent-green);box-shadow:0 4px 20px rgba(0,0,0,0.06);}
.project-desc p {font-size:1.1rem;color:var(--text-gray);line-height:2;margin-bottom:20px;}
.project-desc p:last-child {margin-bottom:0;}
.project-desc strong {color:var(--accent-green-dark);font-weight:600;}
/* ==================== 设计理念 - 时间轴式展示 ==================== */
.concept-section {padding:100px 0;background:var(--primary-dark);position:relative;overflow:hidden;}
.concept-section::before {content:'';position:absolute;top:-50%;right:-20%;width:800px;height:800px;background:radial-gradient(circle,rgba(26,140,94,0.1) 0%,transparent 70%);pointer-events:none;}
.concept-section .section-title {color:white;}
.concept-section .section-desc {color:rgba(255,255,255,0.6);}
.concept-timeline {position:relative;max-width:1000px;margin:0 auto;}
.concept-timeline::before {content:'';position:absolute;left:50%;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--gold-primary),var(--accent-green));transform:translateX(-50%);}
.concept-item {display:flex;align-items:center;margin-bottom:60px;position:relative;}
.concept-item:nth-child(even) {flex-direction:row-reverse;}
.concept-item-content {width:45%;padding:35px;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.08);border-radius:4px;backdrop-filter:blur(10px);transition:var(--transition-smooth);}
.concept-item-content:hover {background:rgba(255,255,255,0.06);border-color:rgba(201,169,98,0.3);transform:scale(1.02);}
.concept-item-number {position:absolute;left:50%;transform:translateX(-50%);width:50px;height:50px;background:linear-gradient(135deg,var(--gold-primary),var(--gold-dark));border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--primary-dark);font-size:1.2rem;box-shadow:0 4px 20px rgba(201,169,98,0.3);z-index:2;}
.concept-item-title {font-size:1.4rem;font-weight:600;color:white;margin-bottom:12px;display:flex;align-items:center;gap:10px;}
.concept-item-title svg {width:24px;height:24px;color:var(--gold-primary);}
.concept-item-text {color:rgba(255,255,255,0.7);line-height:1.9;font-size:1rem;}
/* ==================== 案例效果图展示 - 瀑布流画廊 ==================== */
.gallery-section {padding:100px 0;background:white;}
.gallery-intro {text-align:center;max-width:800px;margin:0 auto 50px;font-size:1.1rem;color:var(--text-gray);line-height:1.9;}
/* 瀑布流布局 */.gallery-waterfall {display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:280px;gap:20px;}
.gallery-item {position:relative;border-radius:8px;overflow:hidden;cursor:pointer;transition:var(--transition-smooth);box-shadow:0 4px 20px rgba(0,0,0,0.1);}
.gallery-item:hover {transform:translateY(-8px);box-shadow:0 20px 50px rgba(0,0,0,0.2);}
.gallery-item img {width:100%;height:100%;object-fit:cover;transition:transform 0.8s ease;}
.gallery-item:hover img {transform:scale(1.08);}
.gallery-item-overlay {position:absolute;bottom:0;left:0;right:0;background:linear-gradient(to top,rgba(10,10,10,0.9) 0%,transparent 100%);padding:30px 20px 20px;opacity:0;transition:var(--transition-smooth);}
.gallery-item:hover .gallery-item-overlay {opacity:1;}
.gallery-item-title {color:white;font-size:1.1rem;font-weight:600;margin-bottom:6px;}
.gallery-item-desc {color:rgba(255,255,255,0.7);font-size:0.85rem;}
.gallery-item-zoom {position:absolute;top:20px;right:20px;width:44px;height:44px;background:rgba(255,255,255,0.95);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(0.8);transition:var(--transition-smooth);}
.gallery-item:hover .gallery-item-zoom {opacity:1;transform:scale(1);}
.gallery-item-zoom svg {width:20px;height:20px;color:var(--primary-dark);}
/* 不同尺寸 */.gallery-item.wide {grid-column:span 2;}
.gallery-item.tall {grid-row:span 2;}
.gallery-item.large {grid-column:span 2;grid-row:span 2;}
/* ==================== 大图灯箱 ==================== */
.lightbox {position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(10,10,10,0.95);z-index:9999;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;object-fit:contain;border-radius:4px;box-shadow:0 20px 60px 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:40px;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;cursor:pointer;transition:var(--transition-smooth);color:white;}
.lightbox-close:hover {background:var(--gold-primary);border-color:var(--gold-primary);color:var(--primary-dark);}
.lightbox-close svg {width:24px;height:24px;}
.lightbox-caption {position:absolute;bottom:40px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,0.8);font-size:1rem;text-align:center;background:rgba(0,0,0,0.5);padding:10px 30px;border-radius:4px;backdrop-filter:blur(10px);}
.lightbox-nav {position:absolute;top:50%;transform:translateY(-50%);width:60px;height:60px;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;cursor:pointer;transition:var(--transition-smooth);color:white;}
.lightbox-nav:hover {background:var(--gold-primary);border-color:var(--gold-primary);color:var(--primary-dark);}
.lightbox-nav.prev {left:30px;}
.lightbox-nav.next {right:30px;}
.lightbox-nav svg {width:24px;height:24px;}
/* ==================== 设计亮点 - 手风琴式 ==================== */
.highlights-section {padding:100px 0;background:var(--cream);}
.highlights-accordion {display:flex;gap:15px;height:500px;}
.highlight-panel {flex:1;border-radius:8px;overflow:hidden;position:relative;cursor:pointer;transition:flex 0.6s cubic-bezier(0.4,0,0.2,1);box-shadow:0 4px 20px rgba(0,0,0,0.1);}
.highlight-panel.active {flex:3;}
.highlight-panel-bg {position:absolute;top:0;left:0;width:100%;height:100%;background-size:cover;background-position:center;transition:transform 0.8s ease;}
.highlight-panel:hover .highlight-panel-bg {transform:scale(1.05);}
.highlight-panel-overlay {position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(to top,rgba(10,10,10,0.9) 0%,rgba(10,10,10,0.3) 60%,transparent 100%);}
.highlight-panel-content {position:absolute;bottom:0;left:0;right:0;padding:30px;transition:var(--transition-smooth);}
.highlight-panel-number {font-size:3rem;font-weight:700;color:var(--gold-primary);opacity:0.3;line-height:1;margin-bottom:10px;}
.highlight-panel-title {font-size:1.3rem;font-weight:600;color:white;margin-bottom:10px;white-space:nowrap;}
.highlight-panel-text {color:rgba(255,255,255,0.7);font-size:0.95rem;line-height:1.7;opacity:0;max-height:0;overflow:hidden;transition:all 0.4s ease 0.2s;}
.highlight-panel.active .highlight-panel-text {opacity:1;max-height:200px;}
.highlight-panel.active .highlight-panel-number {opacity:0.6;}
/* ==================== 公司实力 - 数据滚动动画 ==================== */
.strength-section {padding:100px 0;background:var(--primary-dark);position:relative;overflow:hidden;}
.strength-section::before {content:'';position:absolute;top:0;left:0;right:0;bottom: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;}
.strength-section .section-title {color:white;}
.strength-section .section-desc {color:rgba(255,255,255,0.6);}
.strength-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:30px;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:4px;padding:45px 35px;text-align:center;transition:var(--transition-smooth);backdrop-filter:blur(10px);}
.strength-card:hover {background:rgba(255,255,255,0.06);border-color:rgba(201,169,98,0.3);transform:translateY(-8px);}
.strength-icon {width:70px;height:70px;margin:0 auto 25px;background:linear-gradient(135deg,var(--gold-primary),var(--gold-dark));border-radius:50%;display:flex;align-items:center;justify-content:center;}
.strength-icon svg {width:32px;height:32px;color:var(--primary-dark);}
.strength-title {font-size:1.3rem;font-weight:600;color:white;margin-bottom:15px;}
.strength-text {color:rgba(255,255,255,0.7);line-height:1.8;font-size:0.95rem;}
/* 资质标签 */.qualification-tags {display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:60px;position:relative;z-index:1;}
.qual-tag {background:rgba(201,169,98,0.1);border:1px solid rgba(201,169,98,0.2);color:var(--gold-primary);padding:10px 24px;border-radius:50px;font-size:0.9rem;font-weight:500;transition:var(--transition-smooth);}
.qual-tag:hover {background:var(--gold-primary);color:var(--primary-dark);transform:translateY(-3px);}
/* ==================== 服务网络 - 地图式展示 ==================== */
.network-section {padding:100px 0;background:white;}
.network-visual {display:grid;grid-template-columns:1fr 1.5fr;gap:60px;align-items:center;}
.network-info h3 {font-size:2rem;font-weight:700;color:var(--primary-dark);margin-bottom:20px;}
.network-info h3 span {color:var(--accent-green);}
.network-info p {color:var(--text-gray);line-height:2;margin-bottom:30px;font-size:1.05rem;}
.network-cities {display:grid;grid-template-columns:repeat(2,1fr);gap:15px;}
.city-item {display:flex;align-items:center;gap:12px;padding:15px 20px;background:var(--cream);border-radius:4px;transition:var(--transition-smooth);}
.city-item:hover {background:var(--accent-green);color:white;transform:translateX(5px);}
.city-item:hover .city-name {color:white;}
.city-item:hover .city-factory {color:rgba(255,255,255,0.8);}
.city-dot {width:10px;height:10px;background:var(--accent-green);border-radius:50%;flex-shrink:0;box-shadow:0 0 10px rgba(26,140,94,0.4);}
.city-item:hover .city-dot {background:white;box-shadow:0 0 15px rgba(255,255,255,0.5);}
.city-name {font-weight:600;color:var(--primary-dark);font-size:1rem;}
.city-factory {font-size:0.8rem;color:var(--text-light);margin-left:auto;}
.network-map {position:relative;background:var(--cream);border-radius:8px;padding:40px;min-height:400px;display:flex;align-items:center;justify-content:center;}
.map-china {width:100%;max-width:500px;opacity:0.15;}
.map-points {position:absolute;top:0;left:0;width:100%;height:100%;}
.map-point {position:absolute;width:16px;height:16px;background:var(--accent-green);border-radius:50%;box-shadow:0 0 0 0 rgba(26,140,94,0.7);animation:pulse 2s infinite;}
.map-point::after {content:attr(data-city);position:absolute;top:-30px;left:50%;transform:translateX(-50%);white-space:nowrap;background:var(--primary-dark);color:white;padding:4px 12px;border-radius:4px;font-size:0.75rem;opacity:0;transition:var(--transition-smooth);}
.map-point:hover::after {opacity:1;}
@keyframes pulse {0% {box-shadow:0 0 0 0 rgba(26,140,94,0.7);}
70% {box-shadow:0 0 0 15px rgba(26,140,94,0);}
100% {box-shadow:0 0 0 0 rgba(26,140,94,0);}
}
/* ==================== CTA区域 ==================== */
.cta-section {padding:100px 0;background:linear-gradient(135deg,var(--primary-dark) 0%,var(--secondary-dark) 100%);position:relative;overflow:hidden;}
.cta-section::before {content:'';position:absolute;top:0;left:0;right:0;bottom: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:2.8rem;color:white;margin-bottom:20px;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:40px;line-height:1.8;}
.cta-phone {font-size:2.2rem;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;}
/* ==================== 面包屑导航 ==================== */
.breadcrumb {background:var(--cream);padding:20px 0;border-bottom:1px solid rgba(0,0,0,0.05);}
.breadcrumb-inner {max-width:1400px;margin:0 auto;padding:0 40px;}
.breadcrumb-inner a {color:var(--text-gray);text-decoration:none;transition:var(--transition-smooth);font-size:0.9rem;}
.breadcrumb-inner a:hover {color:var(--accent-green);}
.breadcrumb-inner span {color:var(--text-light);margin:0 8px;}
.breadcrumb-inner strong {color:var(--primary-dark);font-weight:500;font-size:0.9rem;}
/* ==================== 页脚 ==================== */
/*.footer {background:var(--primary-dark);color:white;padding:80px 0 0;}
.footer-grid {display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:60px;margin-bottom:60px;}
.footer-brand {max-width:350px;}
.footer-logo {font-size:1.8rem;font-weight:700;color:white;margin-bottom:20px;display:flex;align-items:center;gap:12px;}
.footer-desc {color:rgba(255,255,255,0.6);line-height:1.9;margin-bottom:30px;}
.footer-title {font-size:1.1rem;font-weight:600;margin-bottom:24px;color:white;letter-spacing:1px;}
.footer-links {list-style:none;}
.footer-links li {margin-bottom:14px;}
.footer-links a {color:rgba(255,255,255,0.6);text-decoration:none;transition:var(--transition-smooth);display:flex;align-items:center;gap:10px;}
.footer-links a::before {content:'→';color:var(--gold-primary);opacity:0;transform:translateX(-10px);transition:var(--transition-smooth);}
.footer-links a:hover {color:var(--gold-primary);padding-left:5px;}
.footer-links a:hover::before {opacity:1;transform:translateX(0);}
.footer-contact li {display:flex;gap:16px;margin-bottom:20px;color:rgba(255,255,255,0.7);}
.contact-icon {width:24px;height:24px;color:var(--gold-primary);flex-shrink:0;}
.footer-bottom {border-top:1px solid rgba(255,255,255,0.1);padding:30px 0;display:flex;justify-content:space-between;align-items:center;color:rgba(255,255,255,0.5);font-size:0.9rem;}
.footer-bottom a {color:rgba(255,255,255,0.5);text-decoration:none;transition:var(--transition-smooth);}
.footer-bottom a:hover {color:var(--gold-primary);}*/
/* ==================== 浮动按钮 ==================== */
.float-cta {position:fixed;right:30px;bottom:100px;z-index:999;display:flex;flex-direction:column;gap:16px;}
.float-btn {width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;text-decoration:none;box-shadow:0 8px 30px rgba(0,0,0,0.3);transition:var(--transition-smooth);position:relative;font-size:1.5rem;}
.float-btn-phone {background:var(--gold-primary);color:var(--primary-dark);}
.float-btn-wechat {background:#07c160;}
.float-btn-top {background:var(--secondary-dark);opacity:0;visibility:hidden;transform:translateY(20px);}
.float-btn-top.visible {opacity:1;visibility:visible;transform:translateY(0);}
.float-btn:hover {transform:scale(1.1) translateY(-5px);}
.float-tooltip {position:absolute;right:75px;background:var(--primary-dark);color:white;padding:10px 20px;border-radius:4px;font-size:0.85rem;white-space:nowrap;opacity:0;visibility:hidden;transition:var(--transition-smooth);box-shadow:0 4px 20px rgba(0,0,0,0.2);}
.float-btn:hover .float-tooltip {opacity:1;visibility:visible;}
/* ==================== 响应式设计 ==================== */
@media (max-width:1200px) {.project-info-cards {grid-template-columns:repeat(2,1fr);}
.gallery-waterfall {grid-template-columns:repeat(2,1fr);}
.gallery-item.wide,.gallery-item.large {grid-column:span 1;}
.strength-grid {grid-template-columns:repeat(2,1fr);}
.network-visual {grid-template-columns:1fr;}
.footer-grid {grid-template-columns:repeat(2,1fr);}
.highlights-accordion {height:400px;}
}
@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);}
.case-hero-title {font-size:2.5rem;}
.concept-timeline::before {left:30px;}
.concept-item,.concept-item:nth-child(even) {flex-direction:column;align-items:flex-start;padding-left:70px;}
.concept-item-content {width:100%;}
.concept-item-number {left:30px !important;transform:translateX(-50%) !important;}
.highlights-accordion {flex-direction:column;height:auto;}
.highlight-panel {min-height:200px;}
.highlight-panel.active {min-height:350px;}
.lightbox-nav {width:45px;height:45px;}
.lightbox-nav.prev {left:10px;}
.lightbox-nav.next {right:10px;}
}
@media (max-width:768px) {.project-info-cards {grid-template-columns:1fr;}
.gallery-waterfall {grid-template-columns:1fr;grid-auto-rows:250px;}
.gallery-item.wide,.gallery-item.tall,.gallery-item.large {grid-column:span 1;grid-row:span 1;}
.strength-grid {grid-template-columns:1fr;}
.section-title {font-size:2rem;}
.case-hero-title {font-size:1.8rem;}
.case-hero-desc {font-size:1rem;}
.case-hero-meta {gap:20px;}
.project-desc {padding:30px 20px;}
.concept-item {padding-left:60px;}
.concept-item-number {width:40px;height:40px;font-size:1rem;left:20px !important;}
.qualification-tags {gap:8px;}
.qual-tag {padding:8px 16px;font-size:0.8rem;}
.network-cities {grid-template-columns:1fr;}
.cta-title {font-size:2rem;}
.cta-phone {font-size:1.6rem;}
.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;}
.breadcrumb-inner {padding:0 20px;}
.container {padding:0 20px;}
.case-hero-content {padding:0 20px;padding-top:100px;}
}
@media (max-width:480px) {.section-title {font-size:1.6rem;}
.case-hero-title {font-size:1.6rem;}
.case-hero-badge {padding:8px 16px;}
.case-hero-badge span {font-size:0.75rem;}
.info-card {padding:25px 20px;}
.highlight-panel-title {font-size:1.1rem;}
.highlight-panel-text {font-size:0.85rem;}
.lightbox {padding:20px;}
.lightbox-close {top:15px;right:15px;width:40px;height:40px;}
}