/* ===== 重置 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{min-height:100vh;line-height:1.6;font-family:"Inter","Helvetica","Arial",sans-serif;font-weight:400;background:#0A192F;color:#B0BEC5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{background:none;border:none;cursor:pointer;font:inherit;color:inherit}
:focus-visible{outline:2px solid #00FF7F;outline-offset:2px}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important;scroll-behavior:auto!important}}

/* ===== CSS 变量 ===== */
:root{
  --primary:#00FF7F;
  --primary-dark:#00CC66;
  --secondary:#0A192F;
  --accent:#FF6B35;
  --bg-dark:#0A192F;
  --bg-light:#F0F4F8;
  --card-bg:rgba(10,25,47,0.85);
  --text-primary:#E6F7FF;
  --text-body:#B0BEC5;
  --glass-bg:rgba(255,255,255,0.08);
  --glass-border:rgba(0,255,127,0.2);
  --success:#00FF7F;
  --warning:#FF6B35;
  --error:#FF3D00;
  --font-heading:"Oswald","Impact","Arial Black",sans-serif;
  --font-body:"Inter","Helvetica","Arial",sans-serif;
  --h1:3rem;
  --h1-line:1.1;
  --h2:2.25rem;
  --h2-line:1.2;
  --h3:1.5rem;
  --h3-line:1.3;
  --body:1rem;
  --body-line:1.6;
  --caption:0.875rem;
  --caption-line:1.4;
  --stat-num:4rem;
  --space-xs:8px;
  --space-sm:16px;
  --space-md:24px;
  --space-lg:32px;
  --space-xl:48px;
  --space-2xl:64px;
  --max-width:1200px;
  --header-width:280px;
  --header-width-tablet:220px;
  --footer-bg:#060D1A;
  --radius:8px;
  --radius-lg:16px;
  --transition:0.3s cubic-bezier(0.4,0,0.2,1);
  --shadow-card:0 8px 32px rgba(0,0,0,0.4);
  --shadow-glass:0 4px 24px rgba(0,255,127,0.08);
}

/* ===== 排版 ===== */
h1,.h1{font-family:var(--font-heading);font-size:var(--h1);line-height:var(--h1-line);font-weight:700;color:var(--text-primary);letter-spacing:-0.02em;text-transform:uppercase}
h2,.h2{font-family:var(--font-heading);font-size:var(--h2);line-height:var(--h2-line);font-weight:700;color:var(--text-primary);letter-spacing:-0.01em;text-transform:uppercase}
h3,.h3{font-family:var(--font-heading);font-size:var(--h3);line-height:var(--h3-line);font-weight:600;color:var(--text-primary)}
body,.body{font-family:var(--font-body);font-size:var(--body);line-height:var(--body-line);color:var(--text-body)}
.caption{font-size:var(--caption);line-height:var(--caption-line);color:var(--text-body);opacity:0.8}
.stat-number{font-family:var(--font-heading);font-size:var(--stat-num);line-height:1;font-weight:700;color:var(--primary);letter-spacing:-0.03em}
.text-accent{color:var(--accent)}
.text-primary{color:var(--primary)}

/* ===== 页面骨架 ===== */
body{display:flex;flex-direction:column;background:var(--bg-dark)}
#main-content{flex:1;margin-left:var(--header-width);width:calc(100% - var(--header-width));min-height:100vh;padding:var(--space-xl) var(--space-lg) var(--space-2xl);position:relative;z-index:1}
@media(max-width:1024px){
  #main-content{margin-left:var(--header-width-tablet);width:calc(100% - var(--header-width-tablet));padding:var(--space-lg) var(--space-sm) var(--space-xl)}
}
@media(max-width:768px){
  #main-content{margin-left:0;width:100%;padding:var(--space-lg) var(--space-sm) var(--space-xl);margin-top:64px}
}

/* ===== Skip Link ===== */
.skip-link{position:fixed;top:-100%;left:16px;z-index:1000;padding:8px 16px;background:var(--primary);color:var(--secondary);font-weight:600;font-size:0.875rem;border-radius:0 0 var(--radius) var(--radius);transition:top 0.3s}
.skip-link:focus{top:0}

/* ===== 头部 (桌面侧边栏) ===== */
[data-header]{
  position:fixed;top:0;left:0;width:var(--header-width);height:100vh;z-index:200;
  background:var(--secondary);border-right:1px solid var(--glass-border);
  display:flex;flex-direction:column;
  overflow-y:auto;overflow-x:hidden;
  transition:transform var(--transition);
  box-shadow:2px 0 32px rgba(0,0,0,0.5);
}
.header-inner{display:flex;flex-direction:column;height:100%;padding:var(--space-lg) var(--space-md)}
.header-brand{display:flex;flex-direction:column;gap:var(--space-sm);margin-bottom:var(--space-xl)}
.brand{display:flex;flex-direction:column;gap:2px}
.brand-name{font-family:var(--font-heading);font-size:1.75rem;font-weight:700;color:var(--primary);letter-spacing:0.02em;text-transform:uppercase;line-height:1}
.brand-tagline{font-size:0.75rem;color:var(--text-body);opacity:0.7;letter-spacing:0.04em}
.nav-toggle{display:none}
.nav{display:flex;flex-direction:column;gap:var(--space-xs);flex:1}
.nav-link{
  font-family:var(--font-heading);font-size:1.1rem;font-weight:500;
  color:var(--text-body);padding:var(--space-xs) var(--space-sm);
  border-radius:var(--radius);transition:all var(--transition);
  letter-spacing:0.02em;text-transform:uppercase;position:relative;
}
.nav-link:hover,.nav-link:focus{color:var(--primary);background:var(--glass-bg)}
.nav-link[aria-current="page"]{
  color:var(--primary);background:rgba(0,255,127,0.1);
  border-left:3px solid var(--primary);padding-left:calc(var(--space-sm) - 3px);
}
.header-aside{margin-top:auto;padding-top:var(--space-md);border-top:1px solid var(--glass-border)}
.header-tagline{font-size:0.7rem;color:var(--text-body);opacity:0.5;letter-spacing:0.06em;text-transform:uppercase}

/* ===== 头部移动端 ===== */
@media(max-width:768px){
  [data-header]{
    width:100%;height:64px;flex-direction:row;
    border-right:none;border-bottom:1px solid var(--glass-border);
    box-shadow:0 2px 16px rgba(0,0,0,0.4);
  }
  .header-inner{flex-direction:row;align-items:center;padding:0 var(--space-sm);width:100%;height:100%}
  .header-brand{flex-direction:row;align-items:center;justify-content:space-between;margin-bottom:0;width:100%}
  .brand{flex-direction:row;align-items:baseline;gap:var(--space-xs)}
  .brand-name{font-size:1.4rem}
  .brand-tagline{display:none}
  .nav-toggle{
    display:flex;flex-direction:column;justify-content:center;align-items:center;
    width:40px;height:40px;gap:5px;position:relative;z-index:210;background:var(--glass-bg);border-radius:var(--radius);
  }
  .hamburger-line{display:block;width:22px;height:2px;background:var(--primary);border-radius:1px;transition:all var(--transition)}
  .nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav{
    position:fixed;top:64px;left:0;width:100%;height:calc(100vh - 64px);
    background:rgba(10,25,47,0.98);flex-direction:column;padding:var(--space-lg) var(--space-md);
    transform:translateX(-100%);transition:transform var(--transition);z-index:200;
    backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);overflow-y:auto;
  }
  .nav[data-open]{transform:translateX(0)}
  .nav-link{font-size:1.2rem;padding:var(--space-sm) var(--space-md);border-left:none!important}
  .nav-link[aria-current="page"]{border-left:3px solid var(--primary)!important;padding-left:calc(var(--space-md) - 3px)!important}
  .header-aside{display:none}
}

/* ===== 页脚 ===== */
[data-footer]{
  margin-left:var(--header-width);background:var(--footer-bg);
  border-top:1px solid var(--glass-border);color:var(--text-body);
  position:relative;z-index:1;
}
.footer-inner{max-width:var(--max-width);margin:0 auto;padding:var(--space-xl) var(--space-lg) var(--space-lg)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:var(--space-lg);margin-bottom:var(--space-lg)}
.footer-brand{display:flex;flex-direction:column;gap:var(--space-xs)}
.footer-logo{font-family:var(--font-heading);font-size:1.5rem;font-weight:700;color:var(--primary);text-transform:uppercase}
.footer-desc{font-size:0.875rem;color:var(--text-body);opacity:0.7;margin-bottom:var(--space-xs)}
.footer-contact{font-size:0.8125rem;color:var(--text-body);opacity:0.6;line-height:1.5}
.footer-contact a{color:var(--primary);transition:color var(--transition)}
.footer-contact a:hover{color:var(--primary-dark)}
.footer-hours{font-size:0.75rem;color:var(--text-body);opacity:0.5;margin-top:var(--space-xs)}
.footer-column-title{font-family:var(--font-heading);font-size:1rem;font-weight:600;color:var(--text-primary);text-transform:uppercase;margin-bottom:var(--space-sm);letter-spacing:0.04em}
.footer-links{display:flex;flex-direction:column;gap:var(--space-xs)}
.footer-links a{font-size:0.875rem;color:var(--text-body);opacity:0.7;transition:all var(--transition);padding:2px 0}
.footer-links a:hover{color:var(--primary);opacity:1;padding-left:4px}
.footer-note{font-size:0.8rem;color:var(--text-body);opacity:0.5;margin-top:var(--space-sm);line-height:1.5;font-style:italic}
.footer-bottom{border-top:1px solid rgba(0,255,127,0.1);padding-top:var(--space-md);display:flex;flex-direction:column;gap:var(--space-xs);align-items:center;text-align:center}
.footer-copyright{font-size:0.8125rem;color:var(--text-body);opacity:0.6}
.footer-trust{font-size:0.75rem;color:var(--text-body);opacity:0.4;max-width:600px;line-height:1.5}

@media(max-width:1024px){
  [data-footer]{margin-left:var(--header-width-tablet)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--space-lg)}
  .footer-brand{grid-column:1/-1}
}
@media(max-width:768px){
  [data-footer]{margin-left:0}
  .footer-inner{padding:var(--space-lg) var(--space-sm)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--space-md)}
  .footer-brand{grid-column:1/-1}
  .footer-bottom{flex-direction:column}
}

/* ===== 通用容器 ===== */
.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg)}
@media(max-width:768px){.container{padding:0 var(--space-sm)}}

.section{padding-bottom:var(--space-xl)}
.section:last-child{padding-bottom:0}

.page-header{margin-bottom:var(--space-lg);padding-bottom:var(--space-md);border-bottom:1px solid var(--glass-border)}
.page-header h1{margin-bottom:var(--space-xs)}
.page-header .page-desc{font-size:1.1rem;color:var(--text-body);opacity:0.8}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;flex-wrap:wrap;gap:var(--space-xs);padding:var(--space-sm) 0;font-size:0.8125rem;color:var(--text-body);opacity:0.6}
.breadcrumb a{color:var(--text-body);transition:color var(--transition)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--primary);opacity:1}
.breadcrumb li+li::before{content:"›";margin-right:var(--space-xs);color:var(--text-body);opacity:0.4}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-xs);padding:10px 24px;font-family:var(--font-heading);font-size:1rem;font-weight:600;border-radius:var(--radius);transition:all var(--transition);text-transform:uppercase;letter-spacing:0.04em;border:2px solid transparent}
.btn-primary{background:var(--primary);color:var(--secondary);border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);box-shadow:0 0 24px rgba(0,255,127,0.3)}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-accent:hover{background:#E55A2B;border-color:#E55A2B;box-shadow:0 0 24px rgba(255,107,53,0.3)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--glass-border)}
.btn-outline:hover{background:var(--glass-bg);border-color:var(--primary)}
.btn-sm{padding:6px 16px;font-size:0.8125rem}

/* ===== 玻璃卡片 ===== */
.glass-card{
  background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  padding:var(--space-md);box-shadow:var(--shadow-glass);
  transition:all var(--transition);
}
.glass-card:hover{border-color:rgba(0,255,127,0.4);box-shadow:0 8px 32px rgba(0,255,127,0.12)}
.glass-card .card-title{font-family:var(--font-heading);font-size:1.25rem;color:var(--text-primary);margin-bottom:var(--space-xs);text-transform:uppercase}
.glass-card .card-body{font-size:0.9375rem;color:var(--text-body);opacity:0.8}
.glass-card .card-stat{font-family:var(--font-heading);font-size:var(--stat-num);color:var(--primary);line-height:1}

/* ===== 实色卡片 ===== */
.card{background:var(--card-bg);border-radius:var(--radius-lg);padding:var(--space-md);box-shadow:var(--shadow-card);border:1px solid rgba(0,255,127,0.05);transition:all var(--transition)}
.card:hover{border-color:rgba(0,255,127,0.15);transform:translateY(-2px)}
.card .card-title{font-family:var(--font-heading);font-size:1.25rem;color:var(--text-primary);margin-bottom:var(--space-xs);text-transform:uppercase}
.card .card-body{font-size:0.9375rem;color:var(--text-body);opacity:0.8}

/* ===== 动态网格 ===== */
.grid-dynamic{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--space-md)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md)}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--space-md)}
@media(max-width:768px){
  .grid-dynamic{grid-template-columns:1fr}
  .grid-2,.grid-3{grid-template-columns:1fr}
}

/* ===== 图片容器基础规则 ===== */
.img-container{position:relative;overflow:hidden;border-radius:var(--radius);background:var(--glass-bg)}
.img-container img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition)}
.img-container:hover img{transform:scale(1.05)}
.img-container .img-placeholder{width:100%;height:200px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(0,255,127,0.05),rgba(10,25,47,0.5));color:var(--text-body);font-size:0.875rem;opacity:0.4}
.img-rounded{border-radius:var(--radius-lg)}
.img-polygon{clip-path:polygon(0 0,100% 0,95% 100%,0 85%)}

/* ===== 斜切分割装饰 ===== */
.divider-skew{width:100%;height:2px;background:linear-gradient(90deg,transparent,var(--primary),transparent);margin:var(--space-lg) 0;position:relative}
.divider-skew::before{content:"";position:absolute;top:-4px;left:50%;transform:translateX(-50%);width:12px;height:12px;background:var(--primary);clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);opacity:0.6}

/* ===== 滚动进度条 ===== */
.progress-bar{position:fixed;top:0;left:0;width:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));z-index:999;transition:width 0.1s linear;pointer-events:none}
@media(max-width:768px){.progress-bar{top:64px}}

/* ===== 返回顶部 ===== */
.scroll-top{
  position:fixed;bottom:32px;right:32px;width:48px;height:48px;
  background:var(--glass-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border:1px solid var(--glass-border);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:1.25rem;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(16px);
  transition:all var(--transition);z-index:300;
  box-shadow:var(--shadow-glass);
}
.scroll-top.visible{opacity:1;visibility:visible;transform:translateY(0)}
.scroll-top:hover{background:rgba(0,255,127,0.15);border-color:var(--primary);box-shadow:0 0 24px rgba(0,255,127,0.2)}
.scroll-top .arrow-up{display:block;width:0;height:0;border-left:8px solid transparent;border-right:8px solid transparent;border-bottom:10px solid var(--primary);margin-bottom:2px}

/* ===== 章节跟随指示 ===== */
.section-marker{display:inline-flex;align-items:center;gap:var(--space-xs);font-size:0.75rem;color:var(--primary);opacity:0.6;font-family:var(--font-heading);text-transform:uppercase;letter-spacing:0.06em}
.section-marker::before{content:"";width:24px;height:1px;background:var(--primary);opacity:0.4}

/* ===== 辅助类 ===== */
.text-center{text-align:center}
.mt-sm{margin-top:var(--space-sm)}
.mt-md{margin-top:var(--space-md)}
.mt-lg{margin-top:var(--space-lg)}
.mb-sm{margin-bottom:var(--space-sm)}
.mb-md{margin-bottom:var(--space-md)}
.mb-lg{margin-bottom:var(--space-lg)}
.p-md{padding:var(--space-md)}
.p-lg{padding:var(--space-lg)}
.flex-center{display:flex;align-items:center;justify-content:center}
.flex-between{display:flex;align-items:center;justify-content:space-between}
.gap-sm{gap:var(--space-sm)}
.gap-md{gap:var(--space-md)}

/* ===== 状态标签 ===== */
.tag{display:inline-flex;padding:2px 12px;border-radius:100px;font-size:0.75rem;font-weight:600;font-family:var(--font-heading);text-transform:uppercase;letter-spacing:0.04em}
.tag-live{background:rgba(255,61,0,0.2);color:#FF3D00}
.tag-upcoming{background:rgba(0,255,127,0.15);color:var(--primary)}
.tag-finished{background:rgba(176,190,197,0.15);color:var(--text-body)}
.tag-accent{background:rgba(255,107,53,0.2);color:var(--accent)}

/* ===== 数据行 ===== */
.data-row{display:flex;align-items:center;justify-content:space-between;padding:var(--space-xs) 0;border-bottom:1px solid rgba(0,255,127,0.06)}
.data-row:last-child{border-bottom:none}
.data-label{font-size:0.875rem;color:var(--text-body);opacity:0.7}
.data-value{font-family:var(--font-heading);font-size:1.125rem;color:var(--text-primary);font-weight:600}
.data-value.highlight{color:var(--primary)}

/* ===== 平台兼容 ===== */
@media(max-width:480px){
  :root{--h1:2.25rem;--h2:1.75rem;--h3:1.25rem;--stat-num:2.8rem}
  #main-content{padding:var(--space-md) var(--space-sm) var(--space-lg)}
  .footer-grid{grid-template-columns:1fr;gap:var(--space-md)}
}

/* ===== 打印 ===== */
@media print{
  [data-header],.skip-link,.progress-bar,.scroll-top,.nav-toggle{display:none!important}
  #main-content{margin-left:0!important;width:100%!important;padding:0!important}
  [data-footer]{margin-left:0!important}
  body{color:#000;background:#fff}
  a{color:#000!important;text-decoration:underline}
}