/* ====== 雨滴智汇 官网样式 —— 科技红主题 ====== */
:root {
--primary: #c8102e;
--primary-dark: #78061a;
--primary-darker: #3d050c;
--primary-light: #e63946;
--accent: #ff4757;
--accent-light: #ff6b7a;
--accent-glow: rgba(255,71,87,.35);
--bg: #fdf6f6;
--bg-dark: #f7eaea;
--card-bg: #fff;
--text: #2d2d2d;
--text-secondary: #555;
--text-light: #888;
--border: #ecd5d5;
--shadow: 0 2px 20px rgba(200,16,46,.06);
--shadow-hover: 0 8px 40px rgba(200,16,46,.15);
--glow: 0 0 20px rgba(255,71,87,.25);
--radius: 10px;
--radius-sm: 6px;
--transition: .3s ease;
--max-width: 1200px;
--header-h: 70px;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body { font-family: "Noto Sans SC","Microsoft YaHei","PingFang SC",-apple-system,BlinkMacSystemFont,sans-serif; background: var(--bg); color: var(--text); line-height: 1.8; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
/* ====== 通用容器 ====== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-size: 2em; color: var(--primary); letter-spacing: 2px; margin-bottom: 8px; }
.section-title .line { width: 50px; height: 3px; background: linear-gradient(90deg, var(--accent), var(--primary)); margin: 12px auto; border-radius: 2px; }
.section-title p { color: var(--text-secondary); font-size: .95em; }
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 12px 32px; border-radius: var(--radius-sm); font-size: .95em; font-weight: 600; cursor: pointer; transition: all var(--transition); border: none; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; box-shadow: 0 4px 16px rgba(200,16,46,.25); }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(255,71,87,.35); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.6); }
.btn-outline:hover { background: #fff; color: var(--primary); border-color: #fff; box-shadow: var(--glow); }
/* ====== 头部导航 ====== */
.header { position: fixed; top: 0; left: 0; right: 0; height: var(--header-h); background: rgba(255,255,255,.95); backdrop-filter: blur(10px); z-index: 1000; box-shadow: 0 1px 10px rgba(200,16,46,.04); transition: all var(--transition); }
.header.scrolled { box-shadow: 0 2px 20px rgba(200,16,46,.1); }
.nav { max-width: var(--max-width); margin: 0 auto; height: 100%; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.2em; font-weight: 700; color: var(--primary); }
.logo .logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--primary-dark), var(--accent)); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; box-shadow: 0 2px 8px rgba(200,16,46,.3); }
.logo .logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo .logo-text .en { font-size: .6em; color: var(--text-light); font-weight: 400; letter-spacing: 1px; }
.nav-menu { display: flex; gap: 8px; }
.nav-menu a { padding: 8px 16px; border-radius: var(--radius-sm); font-size: .95em; font-weight: 500; color: var(--text); transition: all var(--transition); }
.nav-menu a:hover, .nav-menu a.active { color: var(--primary); background: rgba(255,71,87,.08); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-phone { font-size: .9em; color: var(--text-secondary); white-space: nowrap; }
.nav-phone strong { color: var(--primary); font-size: 1.1em; }
/* 移动端菜单按钮 */
.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.menu-toggle span { width: 24px; height: 2px; background: var(--primary); transition: all var(--transition); border-radius: 2px; }
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -7px); }
/* ====== 首页 Hero ====== */
.hero { min-height: 100vh; display: flex; align-items: center; position: relative; overflow: hidden; background: linear-gradient(135deg, var(--primary-darker) 0%, var(--primary-dark) 45%, #9e0d22 100%); }
.hero::before { content:''; position:absolute; inset:0; background: url('data:image/svg+xml,'); }
.hero::after { content:''; position:absolute; inset:0; background: radial-gradient(ellipse at 70% 30%, rgba(255,71,87,.12) 0%, transparent 60%); pointer-events:none; }
.hero-bg-particles { position: absolute; inset: 0; overflow: hidden; }
.particle { position: absolute; width: 3px; height: 3px; background: rgba(255,107,122,.5); border-radius: 50%; box-shadow: 0 0 6px rgba(255,71,87,.4); animation: floatUp linear infinite; }
@keyframes floatUp { 0% { transform: translateY(100vh) scale(0); opacity: 0; } 10% { opacity: 1; } 90% { opacity: 1; } 100% { transform: translateY(-100px) scale(1); opacity: 0; } }
.hero-content { position: relative; z-index: 2; color: #fff; }
.hero-content h1 { font-size: 3.2em; font-weight: 700; letter-spacing: 4px; margin-bottom: 16px; line-height: 1.3; }
.hero-content h1 .highlight { color: var(--accent); text-shadow: 0 0 30px rgba(255,71,87,.5); }
.hero-content .subtitle { font-size: 1.3em; color: rgba(255,255,255,.75); margin-bottom: 12px; letter-spacing: 6px; }
.hero-content .desc { font-size: 1em; color: rgba(255,255,255,.55); max-width: 500px; margin-bottom: 36px; line-height: 1.9; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { position: relative; z-index: 2; display: flex; gap: 48px; margin-top: 60px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,.12); }
.hero-stat .num { font-size: 2.5em; font-weight: 700; color: var(--accent); }
.hero-stat .num .plus { font-size: .6em; }
.hero-stat .label { font-size: .9em; color: rgba(255,255,255,.6); }
/* ====== 内页 Banner ====== */
.page-banner { padding: calc(var(--header-h) + 60px) 0 48px; background: linear-gradient(135deg, var(--primary-darker) 0%, var(--primary-dark) 60%, var(--primary) 100%); color: #fff; text-align: center; position: relative; overflow: hidden; }
.page-banner::before { content:''; position:absolute; inset:0; background: url('data:image/svg+xml,'); }
.page-banner::after { content:''; position:absolute; inset:0; background: radial-gradient(ellipse at 50% 100%, rgba(255,71,87,.1) 0%, transparent 60%); pointer-events:none; }
.page-banner h1 { font-size: 2.4em; letter-spacing: 4px; position: relative; text-shadow: 0 2px 20px rgba(0,0,0,.2); }
.page-banner .breadcrumb { margin-top: 12px; font-size: .9em; color: rgba(255,255,255,.55); position: relative; }
.page-banner .breadcrumb a:hover { color: var(--accent); }
/* ====== 卡片网格 ====== */
.card-grid { display: grid; gap: 24px; }
.card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--card-bg); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); transition: all var(--transition); border: 1px solid var(--border); }
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: var(--accent); }
.card .icon { width: 56px; height: 56px; background: linear-gradient(135deg, var(--primary-dark), var(--accent)); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 20px; box-shadow: 0 4px 12px rgba(200,16,46,.2); }
.card h3 { font-size: 1.15em; color: var(--primary); margin-bottom: 10px; }
.card p { font-size: .9em; color: var(--text-secondary); line-height: 1.7; }
.card .card-link { display: inline-block; margin-top: 12px; font-size: .88em; color: var(--primary); font-weight: 600; }
.card .card-link:hover { color: var(--accent); }
/* ====== 业务列表 ====== */
.service-item { display: flex; gap: 24px; align-items: flex-start; margin-bottom: 40px; }
.service-item .service-num { font-size: 3em; font-weight: 700; color: var(--primary); opacity: .25; line-height: 1; min-width: 80px; }
.service-item .service-content h3 { font-size: 1.25em; color: var(--primary); margin-bottom: 8px; }
.service-item .service-content p { color: var(--text-secondary); margin-bottom: 8px; }
.service-item .service-content .tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.service-item .service-content .tag { padding: 3px 12px; background: rgba(255,71,87,.1); color: var(--primary); border-radius: 4px; font-size: .82em; }
/* ====== 案例卡片 ====== */
.case-card { background: var(--card-bg); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: all var(--transition); border: 1px solid var(--border); }
.case-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: var(--accent); }
.case-card .case-img { height: 200px; background: linear-gradient(135deg, var(--primary-dark), var(--primary-light)); display: flex; align-items: center; justify-content: center; font-size: 48px; color: rgba(255,255,255,.35); }
.case-card .case-body { padding: 24px; }
.case-card .case-body h3 { font-size: 1.1em; color: var(--primary); margin-bottom: 8px; }
.case-card .case-body p { font-size: .88em; color: var(--text-secondary); margin-bottom: 12px; }
.case-card .case-tag { display: inline-block; padding: 3px 10px; background: var(--bg-dark); border-radius: 4px; font-size: .8em; color: var(--text-secondary); }
/* ====== 时间线 ====== */
.timeline { position: relative; padding-left: 32px; border-left: 3px solid var(--border); }
.timeline-item { margin-bottom: 36px; position: relative; }
.timeline-item::before { content:''; position:absolute; left:-41px; top:6px; width:12px; height:12px; background:var(--accent); border-radius:50%; border:3px solid var(--bg); box-shadow: 0 0 8px rgba(255,71,87,.4); }
.timeline-item .year { font-size: 1.3em; font-weight: 700; color: var(--primary); }
.timeline-item h4 { color: var(--primary); margin: 4px 0; }
.timeline-item p { color: var(--text-secondary); font-size: .92em; }
/* ====== 特性区 ====== */
.features { background: var(--card-bg); }
.feature-row { display: flex; align-items: center; gap: 60px; margin-bottom: 60px; }
.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse { flex-direction: row-reverse; }
.feature-text { flex: 1; }
.feature-text h3 { font-size: 1.5em; color: var(--primary); margin-bottom: 16px; }
.feature-text p { color: var(--text-secondary); margin-bottom: 12px; }
.feature-text ul { margin-top: 16px; }
.feature-text ul li { padding: 4px 0; color: var(--text-secondary); position: relative; padding-left: 20px; }
.feature-text ul li::before { content:'✓'; position: absolute; left: 0; color: var(--primary); font-weight: 700; }
.feature-img { flex: 1; height: 320px; background: linear-gradient(135deg, var(--primary-dark), var(--primary-light)); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-size: 80px; color: rgba(255,255,255,.25); }
/* ====== 数据统计区 ====== */
.stats-bar { background: linear-gradient(135deg, var(--primary-darker), var(--primary-dark)); color: #fff; padding: 60px 0; position: relative; overflow: hidden; }
.stats-bar::before { content:''; position:absolute; inset:0; background: radial-gradient(circle at 80% 20%, rgba(255,71,87,.1) 0%, transparent 50%); }
.stats-bar .container { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 32px; position: relative; z-index: 1; }
.stats-bar .stat-item { text-align: center; }
.stats-bar .stat-item .num { font-size: 3em; font-weight: 700; color: var(--accent); text-shadow: 0 0 20px rgba(255,71,87,.3); }
.stats-bar .stat-item .num .plus { font-size: .5em; }
.stats-bar .stat-item .label { font-size: .95em; color: rgba(255,255,255,.6); margin-top: 4px; }
/* ====== CTA ====== */
.cta-section { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: #fff; text-align: center; padding: 80px 0; position: relative; overflow: hidden; }
.cta-section::before { content:''; position:absolute; inset:0; background: radial-gradient(circle at 30% 50%, rgba(255,71,87,.15) 0%, transparent 60%); }
.cta-section h2 { font-size: 2em; margin-bottom: 12px; position: relative; }
.cta-section p { color: rgba(255,255,255,.75); margin-bottom: 28px; position: relative; }
/* ====== 联系页 ====== */
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-item .icon { width: 48px; height: 48px; background: linear-gradient(135deg, var(--bg-dark), rgba(255,71,87,.08)); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; color: var(--primary); }
.contact-item .info h4 { color: var(--primary); margin-bottom: 4px; }
.contact-item .info p { color: var(--text-secondary); font-size: .92em; }
/* ====== Footer ====== */
.footer { background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary-darker) 100%); color: rgba(255,255,255,.6); padding: 60px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
.footer-col h4 { color: #fff; margin-bottom: 16px; font-size: 1em; }
.footer-col p { font-size: .88em; margin-bottom: 8px; }
.footer-col ul li { padding: 4px 0; font-size: .88em; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 24px; text-align: center; font-size: .82em; }
/* ====== 回到顶部 ====== */
.back-to-top { position: fixed; right: 24px; bottom: 24px; width: 44px; height: 44px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; visibility: hidden; transition: all var(--transition); z-index: 999; box-shadow: 0 4px 16px rgba(200,16,46,.3); }
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: linear-gradient(135deg, var(--primary-dark), var(--accent)); box-shadow: 0 6px 24px rgba(255,71,87,.4); transform: translateY(-2px); }
/* ====== 动画 ====== */
.fade-in { opacity: 0; transform: translateY(30px); transition: all .8s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
/* ====== 响应式 ====== */
@media (max-width: 968px) {
.feature-row { flex-direction: column !important; gap: 32px; }
.feature-img { width: 100%; height: 240px; }
.footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
.section { padding: 60px 0; }
.nav-menu, .nav-phone { display: none; }
.menu-toggle { display: flex; }
.nav-menu.mobile-open { display: flex; flex-direction: column; position: fixed; top: var(--header-h); left: 0; right: 0; background: #fff; padding: 20px; box-shadow: 0 4px 20px rgba(200,16,46,.1); gap: 0; }
.nav-menu.mobile-open a { padding: 14px 16px; border-radius: 0; border-bottom: 1px solid var(--border); }
.nav-cta .btn { display: none; }
.hero-content h1 { font-size: 2em; letter-spacing: 2px; }
.hero-content .subtitle { font-size: 1em; letter-spacing: 3px; }
.hero-stats { gap: 24px; }
.hero-stat .num { font-size: 1.8em; }
.section-title h2 { font-size: 1.5em; }
.card-grid.cols-3, .card-grid.cols-4 { grid-template-columns: 1fr 1fr; }
.card-grid.cols-2 { grid-template-columns: 1fr; }
.stats-bar .container { flex-direction: column; }
.service-item { flex-direction: column; gap: 8px; }
.footer-grid { grid-template-columns: 1fr; }
.page-banner h1 { font-size: 1.8em; }
}
@media (max-width: 480px) {
.hero-content h1 { font-size: 1.6em; }
.card-grid.cols-3, .card-grid.cols-4 { grid-template-columns: 1fr; }
.hero-buttons { flex-direction: column; }
.hero-buttons .btn { width: 100%; justify-content: center; }
}