/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #1a2a4a;
  --color-primary-light: #2a3f6a;
  --color-primary-dark: #0f1a30;
  --color-accent: #d4a030;
  --color-accent-light: #e8b840;
  --color-accent-dark: #b8891a;
  --color-secondary: #e85d2c;
  --color-secondary-light: #f07a4a;
  --color-bg: #f5f3ef;
  --color-bg-alt: #ebe8e2;
  --color-bg-dark: #0b1424;
  --color-bg-card: #ffffff;
  --color-text: #1a1a2e;
  --color-text-light: #6b7280;
  --color-text-lighter: #9ca3af;
  --color-text-on-dark: #f0f0f5;
  --color-text-muted-dark: #b0b8c8;
  --color-border: #e0ddd6;
  --color-border-light: #f0eee8;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-xl: 0 24px 48px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 20px rgba(212,160,48,0.25);
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --header-height: 72px;
}

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);font-size:16px;line-height:1.6;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
a{color:var(--color-primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--color-accent)}
a:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-radius:2px}
button{cursor:pointer;font-family:inherit;border:none;background:none;transition:all var(--transition)}
button:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}
input,textarea,select{font-family:inherit;font-size:1rem;border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:0.6rem 1rem;background:var(--color-bg-card);color:var(--color-text);transition:border-color var(--transition),box-shadow var(--transition)}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px rgba(212,160,48,0.15)}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{line-height:1.25;font-weight:700;color:var(--color-text)}
h1{font-size:clamp(2rem, 5vw, 3.2rem);letter-spacing:-0.02em}
h2{font-size:clamp(1.5rem, 3.5vw, 2.4rem);letter-spacing:-0.01em}
h3{font-size:clamp(1.1rem, 2.2vw, 1.4rem)}
h4{font-size:1.1rem}
p{margin-bottom:0.8rem;color:var(--color-text-light)}
p:last-child{margin-bottom:0}
::selection{background:var(--color-accent);color:var(--color-bg-dark)}

/* ===== Container ===== */
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg)}
@media(min-width:768px){.container{padding:0 var(--space-xl)}}
@media(min-width:1024px){.container{padding:0 var(--space-2xl)}}

/* ===== 导航栏 ===== */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(11,20,36,0.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,0.06);height:var(--header-height)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.header-left{display:flex;align-items:center;gap:var(--space-lg)}
.logo{display:flex;align-items:center;gap:8px;font-size:1.25rem;font-weight:800;color:#fff;letter-spacing:-0.02em;text-decoration:none}
.logo:hover{color:var(--color-accent)}
.logo-icon{width:32px;height:32px;background:linear-gradient(135deg,var(--color-accent),var(--color-secondary));border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1rem;color:#fff;font-weight:700;flex-shrink:0}
.logo span{color:var(--color-accent)}
.nav-main{display:flex;align-items:center;gap:var(--space-xs)}
.nav-main a{padding:0.5rem 1rem;font-size:0.9rem;font-weight:500;color:var(--color-text-muted-dark);border-radius:var(--radius-sm);transition:all var(--transition);position:relative;text-decoration:none}
.nav-main a:hover{color:#fff;background:rgba(255,255,255,0.06)}
.nav-main a.active{color:var(--color-accent);background:rgba(212,160,48,0.1)}
.nav-main a.active::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:20px;height:2px;background:var(--color-accent);border-radius:1px}
.header-right{display:flex;align-items:center;gap:var(--space-md)}
.search-toggle{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-sm);color:var(--color-text-muted-dark);transition:all var(--transition);font-size:1.1rem}
.search-toggle:hover{color:#fff;background:rgba(255,255,255,0.06)}
.btn-header{display:inline-flex;align-items:center;gap:6px;padding:0.5rem 1.2rem;font-size:0.85rem;font-weight:600;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--color-accent),var(--color-accent-dark));color:var(--color-bg-dark);transition:all var(--transition);text-decoration:none;border:none}
.btn-header:hover{background:linear-gradient(135deg,var(--color-accent-light),var(--color-accent));color:var(--color-bg-dark);transform:translateY(-1px);box-shadow:var(--shadow-glow)}
.mobile-menu-toggle{display:none;flex-direction:column;gap:5px;padding:8px;border-radius:var(--radius-sm);color:#fff;background:none;border:none;cursor:pointer}
.mobile-menu-toggle span{display:block;width:22px;height:2px;background:currentColor;border-radius:2px;transition:all var(--transition)}
@media(max-width:768px){
  .nav-main{display:none;position:absolute;top:var(--header-height);left:0;right:0;background:rgba(11,20,36,0.98);backdrop-filter:blur(12px);flex-direction:column;padding:var(--space-md) var(--space-lg);border-bottom:1px solid rgba(255,255,255,0.06);gap:var(--space-xs)}
  .nav-main.open{display:flex}
  .nav-main a{padding:0.75rem 1rem;width:100%;border-radius:var(--radius-sm)}
  .nav-main a.active::after{display:none}
  .mobile-menu-toggle{display:flex}
  .header-right .btn-header .btn-label{display:none}
  .search-toggle{display:none}
}
@media(min-width:769px){.nav-main{display:flex!important}}

/* ===== Hero 首屏 ===== */
.hero{position:relative;background:var(--color-bg-dark);overflow:hidden;padding:var(--space-4xl) 0 var(--space-3xl);min-height:70vh;display:flex;align-items:center}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 20%, rgba(212,160,48,0.08) 0%, transparent 60%),radial-gradient(ellipse 60% 50% at 80% 80%, rgba(232,93,44,0.05) 0%, transparent 50%);pointer-events:none}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);background-size:60px 60px;pointer-events:none;opacity:0.4}
.hero .container{position:relative;z-index:2}
.hero-content{max-width:720px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:0.35rem 1rem;font-size:0.8rem;font-weight:600;color:var(--color-accent);background:rgba(212,160,48,0.12);border:1px solid rgba(212,160,48,0.2);border-radius:100px;margin-bottom:var(--space-lg);letter-spacing:0.02em}
.hero-badge i{font-size:0.7rem}
.hero h1{color:#fff;margin-bottom:var(--space-lg);font-weight:800}
.hero h1 .highlight{background:linear-gradient(135deg,var(--color-accent),var(--color-accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:clamp(1rem, 2vw, 1.2rem);color:var(--color-text-muted-dark);max-width:600px;margin-bottom:var(--space-xl);line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:var(--space-md);align-items:center}
.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:0.85rem 2rem;font-size:0.95rem;font-weight:600;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--color-accent),var(--color-accent-dark));color:var(--color-bg-dark);border:none;transition:all var(--transition);text-decoration:none}
.btn-primary:hover{background:linear-gradient(135deg,var(--color-accent-light),var(--color-accent));color:var(--color-bg-dark);transform:translateY(-2px);box-shadow:var(--shadow-glow)}
.btn-secondary{display:inline-flex;align-items:center;gap:8px;padding:0.85rem 2rem;font-size:0.95rem;font-weight:600;border-radius:var(--radius-md);background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,0.2);transition:all var(--transition);text-decoration:none}
.btn-secondary:hover{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.3);transform:translateY(-2px)}
.hero-stats{display:flex;flex-wrap:wrap;gap:var(--space-2xl);margin-top:var(--space-3xl);padding-top:var(--space-xl);border-top:1px solid rgba(255,255,255,0.06)}
.hero-stat-item{display:flex;flex-direction:column;gap:4px}
.hero-stat-number{font-size:1.8rem;font-weight:800;color:#fff;letter-spacing:-0.02em}
.hero-stat-label{font-size:0.85rem;color:var(--color-text-muted-dark)}
@media(max-width:768px){
  .hero{padding:var(--space-3xl) 0 var(--space-2xl);min-height:auto}
  .hero-stats{gap:var(--space-lg)}
  .hero-stat-number{font-size:1.4rem}
}

/* ===== 通用板块 ===== */
.section{padding:var(--space-4xl) 0}
.section-alt{background:var(--color-bg-alt)}
.section-dark{background:var(--color-bg-dark);color:var(--color-text-on-dark)}
.section-dark h2,.section-dark h3,.section-dark .section-subtitle{color:#fff}
.section-dark .section-subtitle{color:var(--color-text-muted-dark)}
.section-header{text-align:center;max-width:680px;margin:0 auto var(--space-3xl)}
.section-header-left{text-align:left;max-width:680px;margin:0 0 var(--space-3xl)}
.section-subtitle{font-size:0.9rem;font-weight:600;color:var(--color-accent);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:var(--space-sm)}
.section-title{margin-bottom:var(--space-md)}
.section-desc{font-size:1.05rem;color:var(--color-text-light);line-height:1.7}

/* ===== 关于/简介板块 ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3xl);align-items:center}
.about-text p{font-size:1.05rem;line-height:1.8;margin-bottom:var(--space-md)}
.about-text .btn-primary{margin-top:var(--space-md)}
.about-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));padding:var(--space-2xl);min-height:320px;display:flex;align-items:center;justify-content:center}
.about-visual-inner{text-align:center;color:#fff}
.about-visual-inner .big-number{font-size:4rem;font-weight:800;color:var(--color-accent);line-height:1}
.about-visual-inner .big-label{font-size:1.1rem;color:var(--color-text-muted-dark);margin-top:var(--space-sm)}
.about-features{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md);margin-top:var(--space-lg);width:100%}
.about-feature-item{display:flex;align-items:center;gap:10px;padding:0.6rem 1rem;background:rgba(255,255,255,0.05);border-radius:var(--radius-sm);color:var(--color-text-muted-dark);font-size:0.9rem}
.about-feature-item i{color:var(--color-accent);font-size:0.85rem}
@media(max-width:768px){
  .about-grid{grid-template-columns:1fr;gap:var(--space-xl)}
  .about-visual{min-height:240px;padding:var(--space-lg)}
  .about-features{grid-template-columns:1fr}
}

/* ===== 优势卡片 ===== */
.advantages-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-lg)}
.advantage-card{background:var(--color-bg-card);border-radius:var(--radius-lg);padding:var(--space-xl);border:1px solid var(--color-border-light);transition:all var(--transition);text-align:center}
.advantage-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-accent)}
.advantage-icon{width:56px;height:56px;border-radius:var(--radius-md);background:linear-gradient(135deg,rgba(212,160,48,0.12),rgba(212,160,48,0.06));display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-md);font-size:1.5rem;color:var(--color-accent)}
.advantage-card h3{font-size:1.05rem;margin-bottom:var(--space-sm)}
.advantage-card p{font-size:0.9rem;color:var(--color-text-light);line-height:1.6}
@media(max-width:1024px){.advantages-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.advantages-grid{grid-template-columns:1fr}}

/* ===== 分类入口 ===== */
.categories-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-xl)}
.category-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--color-bg-card);border:1px solid var(--color-border-light);transition:all var(--transition);padding:var(--space-2xl);text-align:center;min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-accent)}
.category-card .cat-icon{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-lg);font-size:1.8rem}
.category-card:nth-child(1) .cat-icon{background:rgba(212,160,48,0.12);color:var(--color-accent)}
.category-card:nth-child(2) .cat-icon{background:rgba(232,93,44,0.12);color:var(--color-secondary)}
.category-card h3{font-size:1.3rem;margin-bottom:var(--space-sm)}
.category-card p{font-size:0.95rem;color:var(--color-text-light);margin-bottom:var(--space-lg);max-width:300px}
.category-card .btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--color-accent);font-size:0.9rem;transition:all var(--transition)}
.category-card .btn-link:hover{color:var(--color-accent-dark);gap:10px}
@media(max-width:640px){.categories-grid{grid-template-columns:1fr}}

/* ===== 最新资讯列表 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg)}
.news-card{background:var(--color-bg-card);border-radius:var(--radius-md);padding:var(--space-lg);border:1px solid var(--color-border-light);transition:all var(--transition);display:flex;flex-direction:column;gap:var(--space-sm);text-decoration:none;color:inherit}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--color-accent)}
.news-card .tag{display:inline-block;padding:0.2rem 0.7rem;font-size:0.75rem;font-weight:600;border-radius:100px;background:rgba(212,160,48,0.1);color:var(--color-accent);align-self:flex-start;margin-bottom:var(--space-xs)}
.news-card h3{font-size:1rem;font-weight:600;line-height:1.4;color:var(--color-text);transition:color var(--transition)}
.news-card:hover h3{color:var(--color-accent)}
.news-card p{font-size:0.88rem;color:var(--color-text-light);line-height:1.6;flex:1}
.news-card .meta{display:flex;align-items:center;gap:var(--space-sm);font-size:0.8rem;color:var(--color-text-lighter);padding-top:var(--space-sm);border-top:1px solid var(--color-border-light);margin-top:auto}
.news-empty{grid-column:1/-1;text-align:center;padding:var(--space-3xl);color:var(--color-text-light);font-size:1rem}
@media(max-width:1024px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.news-grid{grid-template-columns:1fr}}

/* ===== 数据统计 ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-xl)}
.stat-card{text-align:center;padding:var(--space-xl) var(--space-lg);background:rgba(255,255,255,0.03);border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,0.06);transition:all var(--transition)}
.stat-card:hover{background:rgba(255,255,255,0.06);border-color:rgba(212,160,48,0.2);transform:translateY(-2px)}
.stat-number{font-size:2.4rem;font-weight:800;color:var(--color-accent);letter-spacing:-0.02em;line-height:1.2;margin-bottom:var(--space-xs)}
.stat-label{font-size:0.9rem;color:var(--color-text-muted-dark)}
@media(max-width:1024px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.stats-grid{grid-template-columns:1fr 1fr;gap:var(--space-md)}}

/* ===== 使用流程 ===== */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-xl);position:relative}
.steps-grid::before{content:'';position:absolute;top:48px;left:10%;right:10%;height:2px;background:linear-gradient(90deg,var(--color-accent),var(--color-accent-light),var(--color-accent));opacity:0.3;border-radius:1px}
.step-card{text-align:center;position:relative;z-index:2}
.step-number{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--color-accent),var(--color-accent-dark));color:var(--color-bg-dark);font-weight:800;font-size:1.1rem;display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-md);position:relative;z-index:2}
.step-card h3{font-size:1.05rem;margin-bottom:var(--space-sm);color:#fff}
.step-card p{font-size:0.88rem;color:var(--color-text-muted-dark);line-height:1.6;max-width:220px;margin:0 auto}
@media(max-width:1024px){.steps-grid{grid-template-columns:repeat(2,1fr)}.steps-grid::before{display:none}}
@media(max-width:520px){.steps-grid{grid-template-columns:1fr}}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--color-border);padding:0}
.faq-item:first-child{border-top:1px solid var(--color-border)}
.faq-question{width:100%;text-align:left;padding:var(--space-lg) 0;font-size:1.05rem;font-weight:600;color:var(--color-text);display:flex;justify-content:space-between;align-items:center;gap:var(--space-md);background:none;border:none;cursor:pointer;transition:color var(--transition)}
.faq-question:hover{color:var(--color-accent)}
.faq-question .faq-icon{font-size:1.2rem;transition:transform var(--transition);flex-shrink:0;color:var(--color-accent)}
.faq-item.open .faq-question .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 0 var(--space-lg);display:none;font-size:0.95rem;color:var(--color-text-light);line-height:1.7}
.faq-item.open .faq-answer{display:block}
.section-dark .faq-item{border-color:rgba(255,255,255,0.08)}
.section-dark .faq-question{color:#fff}
.section-dark .faq-question:hover{color:var(--color-accent)}
.section-dark .faq-answer{color:var(--color-text-muted-dark)}

/* ===== CTA ===== */
.cta-section{background:linear-gradient(135deg,var(--color-primary-dark),var(--color-primary));padding:var(--space-4xl) 0;text-align:center;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 50% at 50% 50%, rgba(212,160,48,0.06) 0%, transparent 60%);pointer-events:none}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{color:#fff;margin-bottom:var(--space-md)}
.cta-section p{color:var(--color-text-muted-dark);max-width:560px;margin:0 auto var(--space-xl);font-size:1.05rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:var(--space-md);justify-content:center}

/* ===== 页脚 ===== */
.site-footer{background:var(--color-bg-dark);color:var(--color-text-muted-dark);padding:var(--space-3xl) 0 var(--space-xl)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:var(--space-2xl);margin-bottom:var(--space-2xl)}
.footer-brand .logo{margin-bottom:var(--space-md)}
.footer-brand p{font-size:0.9rem;color:var(--color-text-muted-dark);max-width:320px;line-height:1.7}
.footer-col h4{color:#fff;font-size:0.95rem;margin-bottom:var(--space-md);font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:var(--space-sm)}
.footer-col ul a{font-size:0.88rem;color:var(--color-text-muted-dark);transition:all var(--transition);text-decoration:none}
.footer-col ul a:hover{color:var(--color-accent);padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.06);padding-top:var(--space-lg);display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:var(--space-md);font-size:0.85rem}
.footer-bottom-links{display:flex;gap:var(--space-lg)}
.footer-bottom-links a{color:var(--color-text-muted-dark);text-decoration:none;font-size:0.85rem}
.footer-bottom-links a:hover{color:var(--color-accent)}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:var(--space-xl)}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr;gap:var(--space-lg)}.footer-bottom{flex-direction:column;text-align:center}}

/* ===== 工具类 ===== */
.text-center{text-align:center}
.text-accent{color:var(--color-accent)}
.mt-lg{margin-top:var(--space-lg)}
.mt-xl{margin-top:var(--space-xl)}
.mt-2xl{margin-top:var(--space-2xl)}
.gap-md{gap:var(--space-md)}
.flex-center{display:flex;align-items:center;justify-content:center}

/* ===== 响应式微调 ===== */
@media(max-width:768px){
  .section{padding:var(--space-2xl) 0}
  .section-header{margin-bottom:var(--space-xl)}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-primary,.hero-actions .btn-secondary{text-align:center;justify-content:center}
}

/* roulang page: article */
/* ===== Design Variables ===== */
:root {
  --primary: #e63946;
  --primary-dark: #c1121f;
  --primary-light: #ff6b6b;
  --secondary: #1d3557;
  --secondary-light: #2b4d7a;
  --accent: #f4a261;
  --accent-light: #f9c78a;
  --bg-body: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-card-hover: #222240;
  --bg-section: #12122a;
  --bg-dark: #0a0a18;
  --text-primary: #f1f1f6;
  --text-secondary: #b0b0c8;
  --text-muted: #7a7a9a;
  --border-color: #2a2a4a;
  --border-light: #3a3a5a;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 30px rgba(230, 57, 70, 0.15);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-family);
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  min-height: 100vh;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
input, textarea, select { font-family: inherit; font-size: 1rem; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.15rem; }
p { margin-bottom: 1rem; color: var(--text-secondary); }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title { text-align: center; margin-bottom: 48px; }
.section-title h2 { margin-bottom: 12px; }
.section-title p { max-width: 620px; margin: 0 auto; color: var(--text-muted); font-size: 1.05rem; }
.tag {
  display: inline-block; padding: 4px 14px; border-radius: 100px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.3px;
  background: rgba(230,57,70,0.15); color: var(--primary-light);
  border: 1px solid rgba(230,57,70,0.25);
}
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 12px; border-radius: 100px;
  font-size: 0.72rem; font-weight: 600; text-transform: uppercase;
  background: var(--secondary); color: var(--text-secondary);
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 32px; border-radius: var(--radius-md);
  font-size: 1rem; font-weight: 600; line-height: 1.4;
  transition: var(--transition); border: 2px solid transparent;
  text-decoration: none; cursor: pointer;
}
.btn-primary {
  background: var(--primary); color: #fff; border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
  background: transparent; color: var(--text-primary); border-color: var(--border-light);
}
.btn-secondary:hover { background: var(--bg-card); border-color: var(--primary); color: var(--primary-light); transform: translateY(-2px); }
.btn-ghost {
  background: transparent; color: var(--text-secondary); border: none; padding: 8px 16px;
}
.btn-ghost:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.btn-sm { padding: 8px 20px; font-size: 0.88rem; border-radius: var(--radius-sm); }
.btn-lg { padding: 16px 40px; font-size: 1.1rem; border-radius: var(--radius-lg); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ===== Header & Navigation ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-height);
  background: rgba(15,15,26,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}
.site-header.scrolled { background: rgba(10,10,24,0.98); box-shadow: var(--shadow-md); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.4rem; font-weight: 800; color: var(--text-primary);
  text-decoration: none; letter-spacing: -0.5px;
}
.logo:hover { color: var(--text-primary); }
.logo-icon {
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  background: var(--primary); color: #fff; font-weight: 800; font-size: 1.2rem;
}
.logo span { color: var(--primary); font-weight: 700; }
.nav-main { display: flex; align-items: center; gap: 4px; }
.nav-main a {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: var(--radius-sm);
  font-size: 0.92rem; font-weight: 500; color: var(--text-secondary);
  text-decoration: none; transition: var(--transition);
  position: relative;
}
.nav-main a:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.nav-main a.active {
  color: var(--text-primary); background: rgba(230,57,70,0.12);
}
.nav-main a.active::after {
  content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 3px; border-radius: 2px; background: var(--primary);
}
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-search {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 100px;
  background: rgba(255,255,255,0.06); border: 1px solid var(--border-color);
  color: var(--text-muted); font-size: 0.88rem; cursor: pointer;
  transition: var(--transition); width: 180px;
}
.nav-search:hover { border-color: var(--border-light); background: rgba(255,255,255,0.08); }
.nav-search i { font-size: 0.85rem; color: var(--text-muted); }
.nav-search span { color: var(--text-muted); }
.nav-btn {
  padding: 8px 22px; border-radius: 100px;
  background: var(--primary); color: #fff; font-weight: 600; font-size: 0.88rem;
  transition: var(--transition); border: none; cursor: pointer;
}
.nav-btn:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-glow); }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; background: none; border: none; }
.mobile-toggle span { display: block; width: 26px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }

/* ===== Article Hero ===== */
.article-hero {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 40px;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}
.article-hero::before {
  content: ''; position: absolute; top: -50%; right: -20%;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(230,57,70,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.article-hero-inner { max-width: 820px; margin: 0 auto; position: relative; z-index: 1; }
.article-breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.85rem; color: var(--text-muted); margin-bottom: 20px;
  flex-wrap: wrap;
}
.article-breadcrumb a { color: var(--text-muted); }
.article-breadcrumb a:hover { color: var(--primary-light); }
.article-breadcrumb .sep { color: var(--border-light); }
.article-meta {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-bottom: 20px;
}
.article-meta .tag { font-size: 0.75rem; }
.article-meta .date { font-size: 0.85rem; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.article-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.article-hero .lead {
  font-size: 1.1rem; color: var(--text-secondary);
  max-width: 700px; line-height: 1.7;
}

/* ===== Article Content ===== */
.article-main { padding: 60px 0 80px; }
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: start; }
.article-body {
  background: var(--bg-card); border-radius: var(--radius-lg);
  padding: 40px 48px; border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.article-body .featured-image {
  width: 100%; border-radius: var(--radius-md); margin-bottom: 32px;
  object-fit: cover; max-height: 480px;
}
.article-body .content {
  font-size: 1.05rem; line-height: 1.85; color: var(--text-secondary);
}
.article-body .content h2 { margin-top: 40px; margin-bottom: 16px; font-size: 1.5rem; color: var(--text-primary); }
.article-body .content h3 { margin-top: 32px; margin-bottom: 12px; font-size: 1.2rem; color: var(--text-primary); }
.article-body .content p { margin-bottom: 1.2rem; }
.article-body .content ul, .article-body .content ol { margin-bottom: 1.2rem; padding-left: 24px; }
.article-body .content li { margin-bottom: 8px; color: var(--text-secondary); list-style: disc; }
.article-body .content ol li { list-style: decimal; }
.article-body .content a { color: var(--primary-light); text-decoration: underline; }
.article-body .content a:hover { color: var(--primary); }
.article-body .content blockquote {
  border-left: 4px solid var(--primary); padding: 16px 24px; margin: 24px 0;
  background: rgba(230,57,70,0.06); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary); font-style: italic;
}
.article-body .content img { border-radius: var(--radius-md); margin: 24px 0; }
.article-body .content code {
  background: rgba(255,255,255,0.06); padding: 2px 8px; border-radius: 4px;
  font-size: 0.9em; color: var(--accent-light);
}
.article-body .content pre {
  background: var(--bg-dark); padding: 24px; border-radius: var(--radius-md);
  overflow-x: auto; margin: 24px 0; border: 1px solid var(--border-color);
}
.article-body .content pre code { background: none; padding: 0; color: var(--text-secondary); }
.article-footer-meta {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px; margin-top: 40px; padding-top: 24px;
  border-top: 1px solid var(--border-color);
}
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.article-tags .tag { cursor: default; }
.article-share { display: flex; align-items: center; gap: 10px; }
.article-share span { font-size: 0.85rem; color: var(--text-muted); }
.article-share a {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,0.06); color: var(--text-secondary);
  transition: var(--transition); font-size: 0.95rem;
}
.article-share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

/* ===== Article Sidebar ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 32px; }
.sidebar-card {
  background: var(--bg-card); border-radius: var(--radius-md);
  padding: 28px; border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.sidebar-card h4 {
  font-size: 1rem; font-weight: 700; margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.sidebar-card h4 i { color: var(--primary); font-size: 0.9rem; }
.sidebar-list { display: flex; flex-direction: column; gap: 12px; }
.sidebar-list a {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.9rem; color: var(--text-secondary); line-height: 1.5;
  transition: var(--transition);
}
.sidebar-list a:last-child { border-bottom: none; }
.sidebar-list a:hover { color: var(--primary-light); padding-left: 6px; }
.sidebar-list a .num {
  flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%;
  background: rgba(230,57,70,0.1); color: var(--primary-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700;
}
.sidebar-cta {
  background: linear-gradient(145deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-md); padding: 32px 28px; text-align: center;
  border: none;
}
.sidebar-cta h4 { color: #fff; margin-bottom: 8px; }
.sidebar-cta p { color: rgba(255,255,255,0.8); font-size: 0.9rem; margin-bottom: 20px; }
.sidebar-cta .btn { background: #fff; color: var(--primary); border-color: #fff; }
.sidebar-cta .btn:hover { background: rgba(255,255,255,0.9); color: var(--primary-dark); }

/* ===== Article NotFound ===== */
.not-found-wrap {
  text-align: center; padding: 80px 24px;
  max-width: 600px; margin: 0 auto;
}
.not-found-wrap .icon { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; }
.not-found-wrap h2 { margin-bottom: 12px; }
.not-found-wrap p { color: var(--text-muted); margin-bottom: 28px; }

/* ===== Related Posts ===== */
.related-section { background: var(--bg-section); border-top: 1px solid var(--border-color); }
.related-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.related-card {
  background: var(--bg-card); border-radius: var(--radius-md);
  border: 1px solid var(--border-color); overflow: hidden;
  transition: var(--transition);
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border-light); }
.related-card-img {
  height: 180px; background: var(--bg-dark); display: flex;
  align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 2rem; overflow: hidden;
}
.related-card-img img { width: 100%; height: 100%; object-fit: cover; }
.related-card-body { padding: 20px; }
.related-card-body .tag { font-size: 0.7rem; margin-bottom: 8px; }
.related-card-body h4 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.related-card-body h4 a { color: var(--text-primary); }
.related-card-body h4 a:hover { color: var(--primary-light); }
.related-card-body p { font-size: 0.85rem; color: var(--text-muted); }
.related-card-body .date { font-size: 0.78rem; color: var(--text-muted); display: flex; align-items: center; gap: 4px; margin-top: 8px; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-body); }
.faq-grid { max-width: 740px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg-card); border-radius: var(--radius-md);
  border: 1px solid var(--border-color); overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--border-light); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; cursor: pointer; gap: 16px;
  font-size: 1rem; font-weight: 600; color: var(--text-primary);
  background: none; border: none; width: 100%; text-align: left;
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary-light); }
.faq-question i { color: var(--primary); transition: var(--transition); font-size: 0.85rem; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 24px; color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7;
}
.faq-item.active .faq-answer { max-height: 300px; padding: 0 24px 20px; }

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(145deg, var(--secondary), var(--bg-dark));
  border-top: 1px solid var(--border-color);
  text-align: center;
}
.cta-section .section-title h2 { color: var(--text-primary); }
.cta-section .section-title p { color: var(--text-muted); }
.cta-buttons { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; margin-top: 32px; }
.cta-buttons .btn-primary { background: var(--primary); border-color: var(--primary); }
.cta-buttons .btn-primary:hover { background: var(--primary-dark); }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark); border-top: 1px solid var(--border-color);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid var(--border-color);
}
.footer-brand .logo { font-size: 1.3rem; margin-bottom: 16px; }
.footer-brand p { font-size: 0.9rem; color: var(--text-muted); max-width: 360px; line-height: 1.7; }
.footer-col h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; color: var(--text-primary); }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { font-size: 0.88rem; color: var(--text-muted); }
.footer-col ul a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px; padding: 24px 0;
  font-size: 0.82rem; color: var(--text-muted);
}
.footer-bottom-links { display: flex; gap: 16px; }
.footer-bottom-links a { color: var(--text-muted); font-size: 0.82rem; }
.footer-bottom-links a:hover { color: var(--primary-light); }

/* ===== Mobile Navigation ===== */
@media (max-width: 1024px) {
  .nav-main { gap: 2px; }
  .nav-main a { padding: 6px 14px; font-size: 0.85rem; }
  .nav-search { width: 140px; }
  .article-layout { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .mobile-toggle { display: flex; }
  .nav-main {
    position: fixed; top: var(--header-height); left: 0; right: 0;
    flex-direction: column; background: rgba(10,10,24,0.98);
    backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-color);
    padding: 16px 24px; gap: 4px;
    transform: translateY(-120%); opacity: 0;
    transition: var(--transition); pointer-events: none;
  }
  .nav-main.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-main a { width: 100%; padding: 12px 16px; font-size: 1rem; }
  .nav-main a.active::after { display: none; }
  .nav-actions { gap: 8px; }
  .nav-search { width: auto; padding: 8px 12px; }
  .nav-search span { display: none; }
  .nav-btn { padding: 8px 16px; font-size: 0.82rem; }
  .section { padding: 60px 0; }
  .article-hero { padding-top: calc(var(--header-height) + 30px); padding-bottom: 30px; }
  .article-body { padding: 24px; }
  .article-body .content { font-size: 1rem; }
  .article-footer-meta { flex-direction: column; align-items: flex-start; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .header-inner { padding: 0 16px; }
  .container { padding: 0 16px; }
  .logo { font-size: 1.15rem; }
  .logo-icon { width: 32px; height: 32px; font-size: 1rem; }
  .nav-btn { padding: 6px 14px; font-size: 0.78rem; display: none; }
  .nav-btn.mobile-visible { display: inline-flex; }
  .article-body { padding: 16px; border-radius: var(--radius-md); }
  .article-hero h1 { font-size: 1.5rem; }
  .article-meta { gap: 10px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .cta-buttons { flex-direction: column; width: 100%; }
  .cta-buttons .btn { width: 100%; }
  .sidebar-card { padding: 20px; }
}

/* roulang page: category1 */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #8b5cf6;
            --bg-dark: #0f172a;
            --bg-card: #1e293b;
            --bg-section: #f8fafc;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-light: #94a3b8;
            --text-white: #ffffff;
            --border-color: #e2e8f0;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            background: #ffffff;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 0;
            height: 72px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }

        .logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
        }

        .logo span {
            color: var(--secondary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 24px;
            flex: 1;
            justify-content: center;
        }

        .nav-main a {
            padding: 8px 20px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-main a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-main a.active {
            color: #ffffff;
            background: rgba(59, 130, 246, 0.2);
        }

        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary-light);
            border-radius: 4px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-actions .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 10px;
            padding: 0 14px;
            height: 40px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .nav-actions .search-box:focus-within {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(59, 130, 246, 0.4);
        }

        .nav-actions .search-box input {
            background: none;
            border: none;
            outline: none;
            color: #ffffff;
            font-size: 14px;
            width: 140px;
            padding: 6px 0;
        }

        .nav-actions .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .nav-actions .search-box i {
            color: rgba(255, 255, 255, 0.4);
            font-size: 14px;
            margin-right: 8px;
        }

        .btn-nav {
            padding: 8px 22px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(59, 130, 246, 0.25);
            white-space: nowrap;
        }

        .btn-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(59, 130, 246, 0.35);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #ffffff;
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        @media (max-width: 1024px) {
            .nav-main a {
                padding: 8px 14px;
                font-size: 14px;
            }
            .nav-actions .search-box input {
                width: 100px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 64px;
            }
            .nav-main {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(15, 23, 42, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px;
                gap: 6px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
                margin: 0;
                border-radius: 0 0 20px 20px;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-main a.active::after {
                bottom: 4px;
            }
            .nav-actions .search-box {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .btn-nav {
                padding: 6px 16px;
                font-size: 13px;
            }
            .logo {
                font-size: 18px;
            }
            .logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .site-header .container {
                padding: 0 12px;
            }
            .nav-actions .btn-nav {
                padding: 6px 12px;
                font-size: 12px;
            }
            .logo {
                font-size: 16px;
                gap: 6px;
            }
            .logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(59, 130, 246, 0.15);
            border: 1px solid rgba(59, 130, 246, 0.2);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary-light);
            margin-bottom: 20px;
        }

        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .page-hero h1 span {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .page-hero .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 12px;
        }

        .page-hero .hero-stats .stat-item {
            text-align: center;
        }

        .page-hero .hero-stats .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
        }

        .page-hero .hero-stats .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 2px;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 60px 0 40px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .page-hero .hero-stats {
                gap: 24px;
            }
            .page-hero .hero-stats .stat-num {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero .hero-stats {
                gap: 16px;
            }
            .page-hero .hero-stats .stat-num {
                font-size: 20px;
            }
            .page-hero .hero-stats .stat-label {
                font-size: 12px;
            }
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--bg-section);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #ffffff;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 12px auto 0;
            line-height: 1.7;
        }

        .section-header.light h2 {
            color: #ffffff;
        }

        .section-header.light p {
            color: rgba(255, 255, 255, 0.6);
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .section-header p {
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .section-header p {
                font-size: 14px;
            }
        }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .card-grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }

        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        @media (max-width: 1024px) {
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .card-grid-2 {
                grid-template-columns: 1fr;
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Event Card ===== */
        .event-card {
            background: #ffffff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .event-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(59, 130, 246, 0.15);
        }

        .event-card .card-img {
            height: 180px;
            background: linear-gradient(135deg, #1e293b, #334155);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .event-card .card-img .sport-icon {
            font-size: 48px;
            color: rgba(255, 255, 255, 0.15);
        }

        .event-card .card-img .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(59, 130, 246, 0.9);
            color: #ffffff;
            backdrop-filter: blur(4px);
        }

        .event-card .card-img .card-tag.hot {
            background: rgba(239, 68, 68, 0.9);
        }

        .event-card .card-img .card-tag.live {
            background: rgba(34, 197, 94, 0.9);
        }

        .event-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .event-card .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .event-card .card-body .card-meta i {
            margin-right: 4px;
        }

        .event-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .event-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }

        .event-card .card-body .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border-color);
        }

        .event-card .card-body .card-footer .price {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
        }

        .event-card .card-body .card-footer .btn-sm {
            padding: 6px 18px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            background: var(--primary);
            color: #ffffff;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .event-card .card-body .card-footer .btn-sm:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        .event-card.dark-card {
            background: var(--bg-card);
            border-color: rgba(255, 255, 255, 0.06);
        }

        .event-card.dark-card .card-body h3 {
            color: #ffffff;
        }

        .event-card.dark-card .card-body p {
            color: rgba(255, 255, 255, 0.6);
        }

        .event-card.dark-card .card-body .card-footer {
            border-top-color: rgba(255, 255, 255, 0.06);
        }

        .event-card.dark-card .card-body .card-footer .price {
            color: var(--secondary);
        }

        /* ===== Category Tabs ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            margin-bottom: 32px;
        }

        .category-tabs .tab-btn {
            padding: 8px 24px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            border: 1px solid var(--border-color);
            background: #ffffff;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
        }

        .category-tabs .tab-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }

        .category-tabs .tab-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.25);
        }

        /* ===== Timeline / Flow ===== */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .flow-step {
            text-align: center;
            padding: 32px 20px;
            background: #ffffff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }

        .flow-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .flow-step .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            color: #ffffff;
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(59, 130, 246, 0.25);
        }

        .flow-step h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .flow-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .flow-steps {
                grid-template-columns: 1fr;
            }
            .flow-step {
                padding: 24px 16px;
            }
        }

        /* ===== Data / Stats Block ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        .stat-card .stat-icon {
            font-size: 32px;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        .stat-card .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
        }

        .stat-card .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 4px;
        }

        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-card .stat-number {
                font-size: 28px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(59, 130, 246, 0.15);
        }

        .faq-item .faq-q {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
            transition: var(--transition);
        }

        .faq-item .faq-q:hover {
            color: var(--primary);
        }

        .faq-item .faq-q i {
            font-size: 14px;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

        .faq-item.active .faq-a {
            display: block;
        }

        .faq-item.dark-faq {
            background: var(--bg-card);
            border-color: rgba(255, 255, 255, 0.06);
        }

        .faq-item.dark-faq .faq-q {
            color: #ffffff;
        }

        .faq-item.dark-faq .faq-q:hover {
            color: var(--primary-light);
        }

        .faq-item.dark-faq .faq-a {
            color: rgba(255, 255, 255, 0.6);
        }

        @media (max-width: 520px) {
            .faq-item .faq-q {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-item .faq-a {
                padding: 0 16px 14px;
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: 12px;
            font-size: 17px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            color: #ffffff;
            box-shadow: 0 8px 32px rgba(59, 130, 246, 0.3);
        }

        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 48px rgba(59, 130, 246, 0.4);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 56px 0;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 16px;
            }
            .cta-section .btn-cta {
                padding: 14px 32px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .cta-section h2 {
                font-size: 22px;
            }
            .cta-section .btn-cta {
                padding: 12px 24px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b1120;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .site-footer .footer-brand .logo {
            margin-bottom: 12px;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
        }

        .site-footer .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 10px;
        }

        .site-footer .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }

        .site-footer .footer-col ul li a:hover {
            color: #ffffff;
            padding-left: 4px;
        }

        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
            flex-wrap: wrap;
            gap: 12px;
        }

        .site-footer .footer-bottom-links {
            display: flex;
            gap: 20px;
        }

        .site-footer .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.35);
            transition: var(--transition);
        }

        .site-footer .footer-bottom-links a:hover {
            color: #ffffff;
        }

        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 0;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-brand p {
                max-width: 100%;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer .footer-bottom-links {
                gap: 16px;
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        /* ===== Utility ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .divider {
            width: 60px;
            height: 4px;
            border-radius: 4px;
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            margin: 12px auto 0;
        }

        .divider-left {
            margin: 12px 0 0;
        }

        .mb-0 {
            margin-bottom: 0;
        }

        .mt-8 {
            margin-top: 32px;
        }

        .text-center {
            text-align: center;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            padding: 12px 0;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: #ffffff;
        }

        .breadcrumb span {
            color: rgba(255, 255, 255, 0.8);
        }

        .breadcrumb i {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.3);
        }

/* roulang page: category2 */
/* ===== CSS 设计变量 ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #0f3a8a;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --secondary: #f59e0b;
            --secondary-dark: #d97706;
            --secondary-light: #fbbf24;
            --accent: #10b981;
            --accent-dark: #059669;
            --dark: #0f172a;
            --dark-2: #1e293b;
            --dark-3: #334155;
            --text: #1e293b;
            --text-light: #64748b;
            --text-white: #f8fafc;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --bg-card: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.1);
            --shadow-hover: 0 16px 56px rgba(0, 0, 0, 0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 头部 & 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.5px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--dark);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
        }
        .logo span {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-main a {
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            text-decoration: none;
            position: relative;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-toggle,
        .menu-toggle {
            background: none;
            border: none;
            font-size: 20px;
            color: var(--text-light);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .search-toggle:hover,
        .menu-toggle:hover {
            background: var(--bg-alt);
            color: var(--primary);
        }
        .menu-toggle {
            display: none;
        }

        .search-box {
            display: none;
            position: absolute;
            top: calc(var(--header-h) - 2px);
            left: 0;
            right: 0;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            box-shadow: var(--shadow);
            z-index: 999;
        }
        .search-box.open {
            display: block;
        }
        .search-box .container {
            display: flex;
            gap: 12px;
        }
        .search-box input {
            flex: 1;
            padding: 12px 20px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 16px;
            outline: none;
            transition: border var(--transition);
        }
        .search-box input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
        }
        .search-box button {
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition);
        }
        .search-box button:hover {
            background: var(--primary-dark);
        }

        /* ===== 移动端导航 ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg);
            z-index: 999;
            padding: 24px;
            overflow-y: auto;
            border-top: 1px solid var(--border);
        }
        .mobile-nav.open {
            display: block;
        }
        .mobile-nav a {
            display: block;
            padding: 14px 16px;
            font-size: 17px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            text-decoration: none;
        }
        .mobile-nav a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .mobile-nav a.active {
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
        }
        .mobile-nav .mobile-cta {
            margin-top: 16px;
            display: block;
            text-align: center;
            padding: 14px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }
        .mobile-nav .mobile-cta:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* ===== 页面头部 ===== */
        .page-hero {
            padding: 140px 0 64px;
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero h1 span {
            color: var(--secondary);
        }
        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            line-height: 1.8;
        }
        .page-hero .breadcrumb {
            display: flex;
            gap: 8px;
            align-items: center;
            margin-bottom: 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }
        .page-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
        }
        .page-hero .breadcrumb a:hover {
            color: var(--secondary);
        }
        .page-hero .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }
        .page-hero .breadcrumb .current {
            color: var(--secondary);
        }

        /* ===== 分类标签 ===== */
        .section-categories {
            padding: 32px 0;
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
        }
        .category-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .category-tags a {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 100px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: all var(--transition);
            text-decoration: none;
        }
        .category-tags a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-bg);
        }
        .category-tags a.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-light);
            max-width: 600px;
            line-height: 1.7;
        }
        .section-header {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 48px;
        }
        .section-header.centered {
            align-items: center;
            text-align: center;
        }
        .section-header.centered .section-subtitle {
            max-width: 560px;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-grid.col-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid.col-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--bg-alt);
        }
        .card-body {
            padding: 24px;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-bg);
            color: var(--primary);
            margin-bottom: 10px;
        }
        .card-tag.green {
            background: #ecfdf5;
            color: var(--accent-dark);
        }
        .card-tag.orange {
            background: #fffbeb;
            color: var(--secondary-dark);
        }
        .card-tag.purple {
            background: #f5f3ff;
            color: #7c3aed;
        }
        .card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card h3 a {
            color: var(--dark);
            text-decoration: none;
        }
        .card h3 a:hover {
            color: var(--primary);
        }
        .card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .card-meta i {
            margin-right: 4px;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            transition: gap var(--transition);
        }
        .card-link:hover {
            gap: 10px;
        }

        /* ===== 攻略分类板块 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .guide-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: #fff;
        }
        .guide-icon.blue {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
        }
        .guide-icon.orange {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
        }
        .guide-icon.green {
            background: linear-gradient(135deg, var(--accent), #34d399);
        }
        .guide-icon.purple {
            background: linear-gradient(135deg, #7c3aed, #a78bfa);
        }
        .guide-icon.red {
            background: linear-gradient(135deg, #ef4444, #f87171);
        }
        .guide-icon.teal {
            background: linear-gradient(135deg, #0d9488, #2dd4bf);
        }
        .guide-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .guide-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .guide-card .badge-count {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-bg);
            color: var(--primary);
        }

        /* ===== 文章列表 ===== */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .article-item {
            display: flex;
            gap: 24px;
            padding: 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .article-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .article-thumb {
            width: 180px;
            min-height: 120px;
            border-radius: var(--radius-sm);
            background: var(--bg-alt);
            flex-shrink: 0;
            overflow: hidden;
        }
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-content {
            flex: 1;
        }
        .article-content .tag {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-bg);
            color: var(--primary);
            margin-bottom: 6px;
        }
        .article-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .article-content h3 a {
            color: var(--dark);
            text-decoration: none;
        }
        .article-content h3 a:hover {
            color: var(--primary);
        }
        .article-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .article-meta i {
            margin-right: 4px;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-number .suffix {
            font-size: 20px;
            color: var(--text-light);
        }
        .stat-label {
            font-size: 15px;
            color: var(--text-light);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            width: 100%;
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            text-align: left;
            transition: all var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .icon {
            font-size: 18px;
            color: var(--text-light);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        .faq-answer ul {
            list-style: disc;
            padding-left: 20px;
            margin-top: 8px;
        }
        .faq-answer ul li {
            margin-bottom: 4px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 86, 219, 0.3);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 18px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .logo span {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.4);
            text-decoration: none;
            transition: color var(--transition);
            font-size: 13px;
        }
        .footer-bottom-links a:hover {
            color: var(--secondary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
            .article-thumb {
                width: 140px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .nav-main {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
            .header-actions .btn {
                display: none;
            }
            .page-hero {
                padding: 110px 0 40px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .card-grid.col-2 {
                grid-template-columns: 1fr;
            }
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 32px;
            }
            .article-item {
                flex-direction: column;
                gap: 16px;
                padding: 16px;
            }
            .article-thumb {
                width: 100%;
                height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .category-tags {
                gap: 8px;
            }
            .category-tags a {
                font-size: 13px;
                padding: 6px 16px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 12px;
            }
            .stat-number {
                font-size: 28px;
            }
            .card-body {
                padding: 18px;
            }
            .guide-card {
                padding: 24px 18px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-answer {
                font-size: 14px;
            }
            .cta-section {
                padding: 48px 0;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }