/* =================================== CRITICAL CSS - Inline in Target: < 3KB for fast first paint =================================== */ /* Version 1.13 */ /* CSS Variables for theming & performance control */ :root { /* Brand Colors - Fiducial Communications */ /* Primary - Fiducial Red */ --primary-deep: #cd2e26; /* Fiducial red - 主按钮、CTA */ --primary: #cd2e26; /* Fiducial red - 次要按钮 */ --primary-light: #cd2e26; /* Fiducial red - 悬停态 */ --primary-soft: #E7646A; /* 柔和红 - 标签、点缀 */ --primary-subtle: #F5EAEB; /* 淡红 - 背景 */ /* Neutral - Fiducial Gray Scale */ --neutral-ink: #222222; /* Fiducial dark - 正文、深色背景 */ --neutral-slate: #222222; /* Fiducial dark - 标题、导航 */ --neutral-graphite: #222; /* 深灰 - 次要文本 */ --neutral-cool: #5a5a5a; /* Fiducial gray - 辅助文本、图标 */ --neutral-mist: #f1f1f1; /* 浅灰 - 卡片背景 */ --neutral-warm: #ffffff; /* 白色 - 页面背景 */ --neutral-stone: #ececec; /* 边框灰 - 边框、分隔线 */ --neutral-paper: #FFFFFF; /* 纯白 - 卡片 */ /* Accent - Removed gold/copper, use Fiducial red */ --accent-gold: #cd2e26; /* Fiducial red (was gold) */ --accent-copper: #cd2e26; /* Fiducial red (was copper) */ --accent-bronze: #cd2e26; /* Fiducial red (was bronze) */ /* Semantic - 语义色 */ --success: #129E6C; /* 翠绿 - 成功、收益 */ --success-light: #E6F7F0; /* 淡绿 - 成功背景 */ --info: #cd2e26; /* Fiducial red - 信息 (was blue) */ --info-light: #F5EAEB; /* 淡红 - 信息背景 (was blue) */ --warning: #E88B2E; /* 橙色 - 警告 */ --warning-light: #FEF5E7; /* 淡橙 - 警告背景 */ /* Animation Control (A/B testing) */ --animation-level: full; /* full | minimal | none */ --animation-duration: 0.3s; --animation-timing: cubic-bezier(0.4, 0, 0.2, 1); } /* Respect user's motion preferences */ @media (prefers-reduced-motion: reduce) { :root { --animation-level: none; --animation-duration: 0.01ms; } } /* Base reset */ * { margin: 0; padding: 0; box-sizing: border-box; } body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; color: var(--neutral-ink); background-color: #ffffff; line-height: 1.6; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; } /* Container */ .container { max-width: min(94vw, 1480px); margin: 0 auto; padding: 0; } /* Header - Glassmorphism effect */ header { position: sticky; top: 0; z-index: 50; background-color: rgba(249, 246, 242, 0.85); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--neutral-stone); box-shadow: 0 1px 3px rgba(31, 34, 39, 0.05); } .header-inner { display: flex; align-items: center; justify-content: space-between; padding: 1rem 0; } .header-logo { display: flex; align-items: center; gap: 0.75rem; } /* Hero Section - Light Editorial Blog Style */ .hero { /* 纯黑背景 */ background: url('../images/black-bg.png') no-repeat center center; background-size: cover; color: #ffffff; padding: 8rem 0 5rem; /* Edge-to-edge design */ position: relative; overflow: visible; border-bottom: 1px solid rgba(205, 46, 38, 0.2); } /* Hero 右下角 Logo - 放大并与角落交叉 */ .hero::before { content: ''; position: absolute; bottom: -220px; right: -180px; width: 700px; height: 700px; background: url('../images/no-bg-black-logo.png') no-repeat center center; background-size: contain; opacity: 0.08; z-index: 10; pointer-events: none; filter: invert(1) brightness(0.9); } /* Hero subtle accent - thin red keyline at bottom */ .hero::after { content: ''; position: absolute; bottom: -1px; left: 0; width: 100px; height: 3px; background: #cd2e26; } .hero-grid { display: grid; grid-template-columns: 1fr; gap: 4rem; align-items: start; max-width: 1400px; margin: 0 auto; padding: 0 1rem; /* Content breathing space */ } @media (min-width: 768px) { .hero { padding: 10rem 0 7rem; /* Edge-to-edge design */ } .hero-grid { grid-template-columns: 1fr 1fr; gap: 6rem; } } /* Hero Content - Editorial style with red accent bar */ .hero-content { display: flex; flex-direction: column; gap: 2rem; position: relative; z-index: 1; padding-left: 1.5rem; border-left: 4px solid #cd2e26; max-width: 600px; overflow: visible; margin-top: auto; margin-bottom: auto; } @media (min-width: 768px) { .hero-content { gap: 2rem; padding-left: 2rem; } .hero-content h1{ margin: 0 !important; } } .hero-badge { display: inline-block; padding: 0.5rem 1rem; background: #ffffff; color: #5a5a5a; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; width: fit-content; border-radius: 0.375rem; border: 1px solid #ececec; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05); } .hero h1 { font-family: 'Manrope', sans-serif; font-size: 2.5rem; font-weight: 700; line-height: 1.15; margin: 0 0 1.5rem 0; color: #222222; letter-spacing: -0.02em; } @media (min-width: 768px) { .hero h1 { font-size: 3.2rem; margin-bottom: 0rem; } } .hero-description { font-family: 'Roboto', sans-serif; font-size: 1.125rem; color: #444; line-height: 1.8; font-weight: 400; margin: 0; max-width: 540px; } /* Doodle Underline Decoration - Main Site Style */ .doodle-underline { width: 150px; height: auto; margin: -0.5rem 0 1.5rem 0; opacity: 0.7; } /* Hero Decorative Chart */ .hero-decoration { position: absolute; bottom: -50px; right: -100px; width: 250px; opacity: 0.15; pointer-events: none; } .hero-chart-decoration { width: 100%; height: auto; } @media (max-width: 768px) { .hero-decoration { display: none; } .doodle-underline { width: 120px; margin: -0.5rem 0 1rem 0; } } /* Hero Cards Wrapper - Light neutral panel with corner accent */ .hero-cards-wrapper { display: flex; flex-direction: column; align-items: center; gap: 2rem; background: transparent; /* 改为透明，让深色背景显示 */ padding: 2rem 2rem 2.5rem; /* 调整底部padding保持整体高度 */ border-radius: 0.5rem; position: relative; } /* 移除不需要的装饰 */ .hero-cards-container { position: relative; width: 100%; max-width: 24rem; /* 减小宽度 */ height: clamp(23.5rem, 52vh, 30rem); /* 更接近矮卡片的高度 */ min-height: 23.5rem; margin-bottom: 0.5rem; /* 为author card留空间 */ } @media (max-width: 992px) { .hero-cards-container { height: auto; min-height: 22rem; } } /* Stacked Background Cards */ .hero-card-bg { position: absolute; inset: 0; border-radius: 1.5rem; opacity: 0.5; pointer-events: none; transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1); box-shadow: 0 15px 35px rgba(31, 34, 39, 0.15); } .hero-card-bg-1 { background: linear-gradient(135deg, #ffffff 0%, #f1f1f1 100%); transform: rotate(-3deg) scale(0.95) translateZ(0); z-index: 1; opacity: 0.4; } .hero-card-bg-2 { background: linear-gradient(135deg, #ffffff 0%, #f1f1f1 100%); transform: rotate(2deg) scale(0.97) translateZ(0); z-index: 2; opacity: 0.45; } .hero-card-bg-3 { background: linear-gradient(135deg, #ffffff 0%, #f1f1f1 100%); transform: rotate(-1deg) scale(0.98) translateZ(0); z-index: 3; opacity: 0.5; } /* Active state for background cards */ .hero-card-bg.active { transform: rotate(0deg) scale(0.99) translateZ(0); opacity: 0.6; } /* Main Active Card - 优化后的美学设计 */ .hero-card { position: relative; z-index: 10; width: 100%; height: 100%; background: #ffffff; /* 更精致的红色边框 */ border: 2px solid rgba(205, 46, 38, 0.15); /* 更现代的圆角 */ border-radius: 0.75rem; /* 更柔和的阴影，减少"浮空"感 */ box-shadow: 0 10px 25px -5px rgba(31, 34, 39, 0.15), 0 5px 10px -3px rgba(31, 34, 39, 0.08), 0 0 0 1px rgba(205, 46, 38, 0.08); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); } /* 微妙的红色光晕增强品牌感 */ .hero-card::after { content: ''; position: absolute; top: -2px; left: -2px; right: -2px; bottom: -2px; background: linear-gradient(135deg, rgba(205, 46, 38, 0.1) 0%, transparent 50%, rgba(205, 46, 38, 0.05) 100%); border-radius: 0.75rem; z-index: -1; opacity: 0.5; transition: opacity 0.4s ease; } /* Enhanced depth on hover */ .hero-card:hover { border-color: rgba(205, 46, 38, 0.25); box-shadow: 0 15px 35px -8px rgba(31, 34, 39, 0.2), 0 8px 15px -5px rgba(31, 34, 39, 0.1), 0 0 0 1px rgba(205, 46, 38, 0.15), 0 0 30px rgba(205, 46, 38, 0.08); transform: translateY(-4px) scale(1.005); } .hero-card:hover::after { opacity: 0.8; } .hero-card-inner { height: 100%; /* 更柔和的白色到淡粉渐变 */ background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(254, 252, 252, 1) 50%, rgba(253, 249, 249, 1) 100%); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-radius: 0.75rem; padding: 1.75rem 1.75rem 4.75rem; /* 调整底部padding降低整体高度 */ display: flex; flex-direction: column; gap: 1.1rem; /* 略收紧内文间距 */ position: relative; z-index: 1; } /* Card Header */ .hero-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0; /* 移除margin，使用gap */ } .hero-card-dots { display: flex; gap: 0.5rem; } .hero-card-dots .dot { width: 0.75rem; height: 0.75rem; border-radius: 50%; background-color: rgba(255, 255, 255, 0.6); } .hero-card-badge { font-size: 0.75rem; font-weight: 600; color: #ffffff; background-color: #cd2e26; padding: 0.25rem 0.75rem; border-radius: 9999px; } /* Card Content */ .hero-card-content { flex: 1; display: flex; flex-direction: column; gap: 1rem; transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), filter 0.6s cubic-bezier(0.4, 0, 0.2, 1); } /* 确保卡片内所有文字都是深色 - 覆盖hero的白色样式 */ .hero-card h3, .hero-card .card-title, .hero-card p, .hero-card span, .hero-card .metric-value, .hero-card .metric-label { color: inherit !important; } .hero-card .card-title { color: #222222 !important; } .hero-card .metric-value { color: #cd2e26 !important; } .hero-card .metric-label, .hero-card .feature-item span { color: #222222 !important; } /* Respect reduced motion preferences */ @media (prefers-reduced-motion: reduce) { .hero-card-content, .hero-card, .hero-card-bg, .card-nav, .indicator { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; } .hero-card-content { filter: none !important; } } .card-title { font-size: 1.25rem; font-weight: 700; color: #222222 !important; /* 确保深色显示，覆盖hero样式 */ margin: 0; text-shadow: none; /* 移除白色阴影 */ } .card-metric { /* 微妙的红色品牌渐变 */ background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 250, 250, 0.95) 50%, rgba(255, 245, 245, 0.95) 100%); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-radius: 0.75rem; padding: 1.5rem 1.25rem; /* 优化padding */ text-align: center; border: 1px solid rgba(205, 46, 38, 0.1); box-shadow: 0 2px 8px rgba(205, 46, 38, 0.05); } .metric-value { font-size: 2.5rem; /* 增大字号 */ font-weight: 800; /* 加粗 */ color: #cd2e26 !important; /* 品牌红，覆盖hero样式 */ text-shadow: none; /* 移除白色阴影 */ line-height: 1.1; margin-bottom: 0.5rem; } .metric-label { font-size: 0.95rem; /* 增大字号 */ color: #222222 !important; /* 深色，更易读，覆盖hero样式 */ font-weight: 600; /* 加粗 */ line-height: 1.3; } /* Card Features */ .card-features { display: flex; flex-direction: column; gap: 0.875rem; /* 增加间距 */ } .feature-item { display: flex; align-items: center; gap: 0.75rem; /* 增加间距 */ padding: 0.625rem 0.875rem; /* 优化padding */ background: rgba(255, 255, 255, 0.4); /* 稍微加深 */ border-radius: 0.5rem; border: 1px solid rgba(205, 46, 38, 0.08); /* 红色边框 */ } .feature-icon { width: 1.125rem; height: 1.125rem; color: #cd2e26; /* 改为品牌红 */ flex-shrink: 0; stroke-width: 2.5; /* 加粗图标 */ } .feature-item span { font-size: 0.95rem; /* 增大字号 */ color: #222222 !important; /* 深色，覆盖hero样式 */ font-weight: 600; /* 加粗 */ line-height: 1.3; } /* Author Card - 参考主站设计，增强视觉冲击 */ .hero-author-card { position: absolute; bottom: -3rem; right: 1rem; background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(253, 249, 249, 0.95) 100%); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-radius: 0.75rem; padding: 1.25rem 1.5rem; box-shadow: 0 12px 30px -8px rgba(31, 34, 39, 0.2), 0 4px 12px -2px rgba(31, 34, 39, 0.1), 0 0 0 1px rgba(205, 46, 38, 0.15); border: 2px solid rgba(205, 46, 38, 0.15); min-width: 280px; max-width: 320px; z-index: 30; } .author-card-inner { display: flex; align-items: center; gap: 1rem; } .author-avatar { width: 4rem; /* 增大，更突出 */ height: 4rem; border-radius: 50%; background: linear-gradient(135deg, #cd2e26 0%, #be1e2c 100%); /* 渐变背景 */ display: flex; align-items: center; justify-content: center; border: 3px solid white; /* 恢复粗边框 */ box-shadow: 0 4px 12px rgba(205, 46, 38, 0.3); /* 增强阴影 */ flex-shrink: 0; overflow: hidden; /* 裁剪图片 */ position: relative; } /* 真实照片样式 */ .author-avatar img { width: 100%; height: 100%; object-fit: cover; /* 填满圆形 */ display: block; } /* 保留SVG fallback样式 */ .author-avatar svg { width: 2rem; height: 2rem; color: white; } .author-info { flex: 1; min-width: 0; } .author-label { font-size: 0.7rem; color: #cd2e26 !important; /* 品牌红，覆盖hero样式 */ text-transform: uppercase; letter-spacing: 0.12em; /* 增加字间距 */ font-weight: 800; /* 超粗 */ margin-bottom: 0.5rem; /* 增加间距 */ } .author-name { font-size: 1.125rem; /* 增大名字 */ font-weight: 700; color: #222222 !important; /* 深色，覆盖hero样式 */ margin: 0; line-height: 1.2; } .author-title { font-size: 0.8125rem; color: #cd2e26 !important; /* 品牌红，覆盖hero样式 */ margin-top: 0.25rem; font-weight: 500; } /* Navigation Arrows */ .card-nav { position: absolute; top: 50%; --card-nav-x: 0%; --card-nav-scale: 1; transform: translate(var(--card-nav-x), -50%) scale(var(--card-nav-scale)); width: 3rem; height: 3rem; border-radius: 50%; background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border: 2px solid rgba(255, 255, 255, 0.5); display: flex; align-items: center; justify-content: center; cursor: pointer; z-index: 30; box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15); transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); } .card-nav-prev { left: 0; --card-nav-x: -50%; } .card-nav-next { right: 0; --card-nav-x: 50%; } .card-nav svg { width: 1.5rem; height: 1.5rem; color: #cd2e26; } .card-nav:hover { background: var(--neutral-paper); border-color: #cd2e26; --card-nav-scale: 1.1; box-shadow: 0 12px 28px rgba(205, 46, 38, 0.25); } .card-nav:hover svg { color: #cd2e26; } .card-nav:active { --card-nav-scale: 0.95; } /* Hide arrows on mobile */ @media (max-width: 767px) { .card-nav { display: none; } } /* Card Indicators */ .hero-card-indicators { display: flex; gap: 0.5rem; margin-top: 1rem; justify-content: center; } .indicator { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: rgba(255, 255, 255, 0.4); border: none; cursor: pointer; padding: 0; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); } .indicator.active { background: #cd2e26; transform: scale(1.25); } /* Responsive utilities */ @media (max-width: 767px) { .hide-mobile { display: none; } } @media (min-width: 768px) { .hide-desktop { display: none; } }