* {margin: 0; padding: 0; box-sizing: border-box;}:root {--bg-primary: #fff; --bg-secondary: #fafafa; --bg-tertiary: #f5f5f5; --text-primary: #000; --text-secondary: #333; --text-muted: #666; --text-light: #999; --border-color: #eee; --card-bg: #fff; --button-bg: #000; --button-text: #fff; --button-hover: #333; --link-color: #000; --link-hover: #333; --shadow: rgba(0, 0, 0, 0.1); --scrollbar-track: #f1f1f1; --scrollbar-thumb: #888; --scrollbar-thumb-hover: #555;}[data-theme="dark"] {--bg-primary: #000; --bg-secondary: #000; --bg-tertiary: #1a1a1a; --text-primary: #fff; --text-secondary: #ccc; --text-muted: #999; --text-light: #666; --border-color: #333; --card-bg: #111; --button-bg: #fff; --button-text: #000; --button-hover: #ccc; --link-color: #fff; --link-hover: #ccc; --shadow: rgba(255, 255, 255, 0.1); --scrollbar-track: #1a1a1a; --scrollbar-thumb: #666; --scrollbar-thumb-hover: #999;}html {overflow-y: scroll; scrollbar-width: thin; scrollbar-color: #888 #f1f1f1;}html::-webkit-scrollbar {width: 8px;}html::-webkit-scrollbar-track {background: var(--scrollbar-track);}html::-webkit-scrollbar-thumb {background: var(--scrollbar-thumb); border-radius: 4px;}html::-webkit-scrollbar-thumb:hover {background: var(--scrollbar-thumb-hover);}body {font-family: 'Helvetica Neue', Arial, sans-serif; color: var(--text-primary); background-color: var(--bg-primary); line-height: 1.6; overflow-x: hidden; width: 100%;}.container {max-width: 1400px; margin: 0 auto; padding: 0 20px; width: 100%;}a {text-decoration: none; color: var(--link-color);}ul {list-style: none;}img {max-width: 100%; height: auto; display: block;}main {margin-top: 100px;}@media (max-width: 768px) {main {margin-top: 80px;}}@media (max-width: 480px) {main {margin-top: 70px;}}.section-title {text-align: center; font-size: 24px; font-weight: 600; margin-bottom: 40px; letter-spacing: 1px;}.breadcrumb {max-width: 1200px; margin: 10px auto 20px; padding: 0 20px; font-size: 13px; color: var(--text-muted);}.breadcrumb a {color: var(--link-color); text-decoration: none;}.breadcrumb .sep {margin: 0 8px; color: var(--text-light);}.breadcrumb .current {color: var(--text-secondary);}body.no-scroll {overflow: hidden; height: 100vh;}.post-date {font-size: 9px; color: var(--text-muted); margin: 5px 0; font-weight: 500; letter-spacing: 0.5px;}.slide-date {font-size: 10px; color: rgba(255, 255, 255, 0.8); margin: 8px 0; font-weight: 500; letter-spacing: 0.5px; text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);}.back-to-top {position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; background: var(--button-bg); color: var(--button-text); border: none; border-radius: 50%; cursor: pointer; display: none; align-items: center; justify-content: center; font-size: 18px; z-index: 1000; transition: all 0.3s ease; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2); opacity: 0; transform: translateY(20px);}.back-to-top.show {display: flex; opacity: 1; transform: translateY(0);}.back-to-top:hover {background: var(--button-hover); transform: translateY(-3px); box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);}.back-to-top:active {transform: translateY(0);}[data-theme="dark"] .back-to-top {background: #333; color: #fff; box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);}[data-theme="dark"] .back-to-top:hover {background: #555; box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);}@media (max-width: 768px) {.back-to-top {bottom: 20px; right: 20px; width: 45px; height: 45px; font-size: 16px;}}@media (max-width: 480px) {.back-to-top {bottom: 15px; right: 15px; width: 40px; height: 40px; font-size: 14px;}}.events-section {padding: 40px 0; background: #f8f9fa;}.events-grid {display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-top: 30px;}.event-item {background: white; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 10px rgba(0,0,0,0.1); transition: transform 0.3s ease, box-shadow 0.3s ease; cursor: pointer;}.event-item:hover {transform: translateY(-5px); box-shadow: 0 5px 20px rgba(0,0,0,0.15);}.event-content {padding: 20px;}.event-title {font-size: 18px; font-weight: 600; margin-bottom: 10px; color: #333; line-height: 1.4;}.event-excerpt {color: #666; font-size: 14px; line-height: 1.6; margin-bottom: 15px;}.event-meta {display: flex; justify-content: space-between; align-items: center; margin-top: 15px; padding-top: 15px; border-top: 1px solid #eee;}.event-category {background: #007cba; color: white; padding: 4px 8px; border-radius: 4px; font-size: 12px; text-decoration: none;}.event-category:hover {background: #005a87; color: white;}@media (max-width: 768px) {.events-grid {grid-template-columns: 1fr; gap: 15px;}.event-content {padding: 15px;}.event-title {font-size: 16px;}}