/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --primary:#2A5C9E;
  --primary-dark:#1F4A80;
  --primary-light:#EAF1F8;
  --primary-lighter:#F2F6FB;
  --accent:#D9A45D;
  --accent-dark:#C6903F;
  --accent-light:#FDF6EC;
  --bg:#F7FAFC;
  --card:#FFFFFF;
  --text:#2C3E50;
  --text-light:#7A8A9B;
  --text-mute:#9AABBA;
  --border:#E6ECF3;
  --border-light:#EEF2F7;
  --border-blue:#B0C4DE;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow-sm:0 2px 8px rgba(28,55,90,0.05);
  --shadow:0 4px 12px rgba(28,55,90,0.08);
  --shadow-hover:0 8px 24px rgba(28,55,90,0.14);
  --header-h:72px;
  --container:1200px;
  --space-section:96px;
  --font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC','Source Han Sans CN','Hiragino Sans GB',system-ui,-apple-system,sans-serif;
  --font-serif:Georgia,'Songti SC','SimSun',serif;
  --transition:all .28s cubic-bezier(.4,0,.2,1);
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--space-section) 0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:10px 28px;border-radius:var(--radius-sm);
  font-weight:600;font-size:15px;letter-spacing:.4px;
  cursor:pointer;transition:var(--transition);position:relative;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:4px 4px 0 rgba(198,144,63,.25)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translate(-1px,-1px);box-shadow:6px 6px 0 rgba(198,144,63,.2)}
.btn-primary:active{transform:translate(2px,2px);box-shadow:1px 1px 0 rgba(198,144,63,.2)}
.btn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.8);box-shadow:4px 4px 0 rgba(255,255,255,.15)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translate(-1px,-1px)}
.btn-blue{background:var(--primary);color:#fff;box-shadow:4px 4px 0 rgba(42,92,158,.25)}
.btn-blue:hover{background:var(--primary-dark);color:#fff;transform:translate(-1px,-1px)}
.btn-white{background:#fff;color:var(--primary);box-shadow:4px 4px 0 rgba(0,0,0,.15)}
.btn-white:hover{background:#F2F6FB;color:var(--primary-dark);transform:translate(-1px,-1px)}
.btn-lg{min-height:52px;padding:14px 42px;font-size:17px;border-radius:10px}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;padding:4px 14px;
  background:var(--primary-light);color:var(--primary);
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;
}
.badge-accent{background:var(--accent-light);color:var(--accent-dark);border:1px solid #EFD9B8}
.badge-green{background:#E6F4EA;color:#2E7D32}
.badge-gray{background:#EEF2F7;color:#5A6B7B}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:#fff;border-bottom:1px solid var(--border);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.scrolled{box-shadow:0 4px 20px rgba(28,55,90,.08)}
.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  height:var(--header-h);display:flex;align-items:center;gap:24px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-icon{
  width:34px;height:34px;border-radius:10px;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;letter-spacing:-.5px;
  box-shadow:0 2px 8px rgba(42,92,158,.3);
  transform:rotate(-3deg);
  transition:var(--transition);
}
.logo:hover .logo-icon{transform:rotate(0deg)}
.logo-text{font-size:20px;font-weight:700;color:var(--text);letter-spacing:.5px;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--primary);font-weight:800}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto;flex-wrap:nowrap}
.nav-link{
  display:inline-flex;align-items:center;padding:8px 16px;
  font-size:15px;font-weight:500;color:var(--text-light);
  border-radius:var(--radius-sm);transition:var(--transition);
  position:relative;white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:var(--primary-lighter)}
.nav-link.active{color:var(--primary);font-weight:600;background:var(--primary-light)}
.nav-link.active::after{
  content:'';position:absolute;bottom:1px;left:16px;right:16px;height:3px;
  background:var(--accent);border-radius:4px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;justify-content:space-between;
  width:200px;height:38px;padding:0 6px 0 14px;
  background:var(--bg);border:1px solid var(--border);
  border-radius:var(--radius-pill);transition:var(--transition);
}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(42,92,158,.08)}
.search-box input{width:100%;font-size:13px;color:var(--text);background:transparent}
.search-box input::placeholder{color:var(--text-mute)}
.search-box button{
  width:28px;height:28px;border-radius:50%;color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);font-size:12px;cursor:pointer;
  transition:var(--transition);flex-shrink:0;
}
.search-box button:hover{background:var(--primary);color:#fff}
.btn-login{
  font-size:14px;font-weight:600;color:var(--text-light);padding:8px 12px;
  border-radius:var(--radius-sm);transition:var(--transition);
}
.btn-login:hover{color:var(--primary);background:var(--primary-lighter)}
.btn-start{
  display:inline-flex;align-items:center;min-height:38px;padding:6px 20px;
  background:var(--accent);color:#fff;font-size:14px;font-weight:600;
  border-radius:var(--radius-sm);transition:var(--transition);
  box-shadow:3px 3px 0 rgba(198,144,63,.25);
}
.btn-start:hover{background:var(--accent-dark);color:#fff;transform:translate(-1px,-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;width:40px;height:40px;align-items:center;justify-content:center;border-radius:8px;cursor:pointer}
.hamburger span{width:20px;height:2px;background:var(--text);border-radius:2px;transition:var(--transition)}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(4px,-4px)}

/* ============ Hero ============ */
.hero{
  position:relative;min-height:680px;
  display:flex;align-items:center;
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02);animation:heroZoom 18s ease-in-out infinite alternate}
@keyframes heroZoom{0%{transform:scale(1.02)}100%{transform:scale(1.08)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(20,40,70,.82) 0%,rgba(32,60,100,.72) 50%,rgba(42,92,158,.45) 100%)}
.hero-content{position:relative;z-index:2;max-width:var(--container);margin:0 auto;padding:80px 24px;width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);backdrop-filter:blur(4px);
  color:#fff;font-size:13px;font-weight:500;letter-spacing:2px;
  padding:6px 18px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.25);margin-bottom:24px;
}
.hero-badge::before{content:'✦';color:var(--accent)}
.hero h1{
  font-size:44px;font-weight:800;line-height:1.25;color:#fff;
  letter-spacing:1px;max-width:720px;text-shadow:0 2px 20px rgba(0,0,0,.2);
  margin-bottom:16px;
}
.hero h1 .hl{color:var(--accent);position:relative}
.hero-subtitle{
  font-size:18px;color:rgba(255,255,255,.85);
  font-weight:400;letter-spacing:3px;margin-bottom:36px;
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.hero-subtitle::before{content:'';width:32px;height:2px;background:var(--accent);display:inline-block}
.hero-actions{display:flex;gap:18px;flex-wrap:wrap}
.hero-scroll{
  position:absolute;bottom:28px;left:50%;transform:translateX(-50%);
  width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,.4);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;animation:bounceDown 2s infinite;
  transition:var(--transition);
}
.hero-scroll:hover{background:rgba(255,255,255,.2);border-color:#fff}
@keyframes bounceDown{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* ============ 统计数字 ============ */
.stats-section{margin-top:-32px;position:relative;z-index:3;padding:0 24px}
.stats-grid{
  max-width:calc(var(--container) - 48px);margin:0 auto;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.stat-card{
  background:var(--card);border-radius:var(--radius-md);
  padding:28px 20px;text-align:center;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  transition:var(--transition);
  position:relative;overflow:hidden;
}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--primary));opacity:0;transition:opacity .3s}
.stat-card:hover::before{opacity:1}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.stat-num{display:block;font-size:36px;font-weight:800;color:var(--primary);line-height:1.1;margin-bottom:6px}
.stat-label{font-size:14px;color:var(--text-light)}

/* ============ Section Header ============ */
.section-header{margin-bottom:48px;position:relative;padding-left:20px}
.section-header::before{content:'';position:absolute;left:0;top:8px;bottom:8px;width:4px;background:var(--accent);border-radius:4px}
.section-header h2{font-size:32px;font-weight:700;color:var(--text);line-height:1.3;letter-spacing:.5px}
.section-header p{font-size:15px;color:var(--text-light);margin-top:10px;max-width:560px}
.section-header.center{text-align:center;padding-left:0}
.section-header.center::before{display:none}
.section-header.center h2::after{
  content:'';display:block;width:48px;height:3px;margin:16px auto 0;
  background:var(--accent);border-radius:3px;
}

/* ============ 玩法介绍 ============ */
.gameplay-section{background:var(--bg)}
.gameplay-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:28px;
  position:relative;
}
.gameplay-card{
  background:var(--card);border:1px solid var(--border);
  border-left:4px solid var(--primary);
  border-radius:var(--radius-md);
  padding:36px 32px;
  box-shadow:var(--shadow);
  transition:var(--transition);
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;
}
.gameplay-card::after{
  content:'';position:absolute;right:-20px;bottom:-20px;
  width:100px;height:100px;border-radius:50%;
  background:var(--primary-light);opacity:.4;transition:var(--transition);
}
.gameplay-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
  border-left-color:var(--accent);
}
.gameplay-card:hover::after{transform:scale(1.4)}
.gameplay-num{
  position:absolute;top:28px;right:28px;
  font-size:44px;font-weight:800;color:var(--primary-light);
  font-family:var(--font-serif);line-height:1;z-index:0;
}
.gameplay-icon{
  width:52px;height:52px;border-radius:14px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;margin-bottom:20px;
  box-shadow:3px 3px 0 rgba(42,92,158,.12);
  transition:var(--transition);position:relative;z-index:1;
}
.gameplay-card:hover .gameplay-icon{background:var(--accent);color:#fff}
.gameplay-card h3{font-size:20px;font-weight:700;margin-bottom:10px;position:relative;z-index:1}
.gameplay-card p{font-size:14px;color:var(--text-light);line-height:1.7;position:relative;z-index:1}

/* ============ 奖励预览 ============ */
.rewards-section{background:var(--card)}
.rewards-scroll{
  display:flex;gap:20px;overflow-x:auto;
  padding:16px 4px 24px;scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;
}
.rewards-scroll::-webkit-scrollbar{display:none}
.reward-card{
  min-width:260px;scroll-snap-align:start;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:28px 24px;
  box-shadow:var(--shadow);
  transition:var(--transition);
  position:relative;overflow:hidden;
}
.reward-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--accent),#F3D38A);
}
.reward-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.reward-type{
  display:inline-block;background:var(--primary-light);color:var(--primary);
  font-size:12px;font-weight:600;padding:3px 12px;border-radius:var(--radius-pill);
  margin-bottom:14px;letter-spacing:1px;
}
.reward-card h3{font-size:18px;font-weight:700;margin-bottom:6px}
.reward-card .reward-amount{font-size:30px;font-weight:800;color:var(--accent);margin-bottom:14px}
.reward-condition{font-size:13px;color:var(--text-light);background:var(--bg);padding:6px 12px;border-radius:8px;display:inline-block;border:1px dashed var(--border-blue)}
.reward-card:nth-child(2)::before{background:linear-gradient(90deg,#4CAF50,#81C784)}
.reward-card:nth-child(3)::before{background:linear-gradient(90deg,var(--primary),#5B8CC4)}
.reward-card:nth-child(4)::before{background:linear-gradient(90deg,#E91E63,#F48FB1)}
.reward-card:nth-child(5)::before{background:linear-gradient(90deg,#FF9800,#FFB74D)}

/* ============ 赛事资讯 ============ */
.events-section{background:var(--bg)}
.events-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.event-card{
  background:var(--card);border-radius:var(--radius-md);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow);
  transition:var(--transition);display:flex;flex-direction:column;
  position:relative;
}
.event-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.event-img{aspect-ratio:16/10;overflow:hidden;position:relative}
.event-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.event-card:hover .event-img img{transform:scale(1.06)}
.event-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(28,55,90,.45))}
.event-status{
  position:absolute;top:14px;right:14px;z-index:2;
  background:var(--accent);color:#fff;font-size:12px;font-weight:600;
  padding:3px 14px;border-radius:var(--radius-pill);letter-spacing:1px;
  box-shadow:0 4px 12px rgba(0,0,0,.18);
}
.event-status-coming{background:var(--primary)}
.event-status-live{background:#4CAF50}
.event-card-content{padding:24px;display:flex;flex-direction:column;flex:1}
.event-card-content h3{font-size:18px;font-weight:700;margin-bottom:12px}
.event-meta{display:flex;justify-content:space-between;align-items:center;margin-top:auto;font-size:13px;color:var(--text-light)}
.event-meta span{display:inline-flex;align-items:center;gap:6px}
.event-meta i{color:var(--accent)}

/* ============ 步骤条 ============ */
.steps-section{background:var(--card);position:relative;overflow:hidden}
.steps-section::before{content:'';position:absolute;top:120px;left:10%;right:10%;height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent)}
.steps-track{
  display:grid;grid-template-columns:repeat(4,1fr);gap:32px;
  margin-bottom:48px;position:relative;z-index:2;
}
.step-item{text-align:center;position:relative;padding:0 12px}
.step-circle{
  width:72px;height:72px;margin:0 auto 20px;
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:800;
  background:var(--card);border:3px solid var(--border);
  color:var(--text-light);position:relative;
  transition:var(--transition);
  box-shadow:4px 4px 0 rgba(28,55,90,.05);
}
.step-item.active .step-circle{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:4px 4px 0 rgba(42,92,158,.25)}
.step-item.done .step-circle{background:var(--accent);border-color:var(--accent);color:#fff}
.step-circle::after{
  content:'';position:absolute;top:-6px;left:-6px;right:-6px;bottom:-6px;
  border-radius:50%;border:2px dashed var(--border-blue);opacity:0;transition:opacity .3s;
}
.step-item:hover .step-circle::after{opacity:1}
.step-item h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step-item p{font-size:13px;color:var(--text-light);line-height:1.5}
.steps-cta{text-align:center;margin-top:8px}

/* ============ 资讯列表 ============ */
.news-section{background:var(--bg)}
.news-list{display:flex;flex-direction:column;gap:20px}
.news-card{
  display:flex;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-md);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:var(--transition);
  align-items:stretch;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.news-thumb{
  width:200px;min-height:120px;flex-shrink:0;overflow:hidden;
  background:var(--primary-light);position:relative;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-info{padding:22px 24px;flex:1;display:flex;flex-direction:column}
.news-info h3{font-size:17px;font-weight:700;margin-bottom:8px;line-height:1.4}
.news-card:hover .news-info h3{color:var(--primary)}
.news-info p{
  font-size:14px;color:var(--text-light);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:12px;
}
.news-meta{display:flex;align-items:center;gap:14px;margin-top:auto}
.news-date{font-size:13px;color:var(--text-mute);display:inline-flex;align-items:center;gap:5px}
.news-more{
  margin-left:auto;font-size:13px;font-weight:600;color:var(--primary);
  opacity:0;transform:translateX(-8px);transition:var(--transition);
}
.news-card:hover .news-more{opacity:1;transform:translateX(0)}
.news-empty{
  text-align:center;padding:60px 20px;color:var(--text-light);
  background:var(--card);border:2px dashed var(--border);
  border-radius:var(--radius-md);
}
.news-empty-icon{font-size:48px;margin-bottom:12px;color:var(--text-mute)}
.news-empty p{font-size:14px}

/* ============ FAQ ============ */
.faq-section{background:var(--card)}
.faq-list{max-width:780px;margin:0 auto}
.faq-item{
  border:1px solid var(--border);border-radius:var(--radius-md);
  margin-bottom:16px;background:var(--card);
  transition:var(--transition);overflow:hidden;
}
.faq-item:hover{border-color:var(--border-blue);box-shadow:var(--shadow-sm)}
.faq-item.open{border-color:var(--primary);box-shadow:var(--shadow)}
.faq-question{
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;cursor:pointer;user-select:none;
}
.faq-icon{
  width:28px;height:28px;border-radius:50%;flex-shrink:0;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:600;transition:var(--transition);
}
.faq-item.open .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-question h3{font-size:16px;font-weight:600;flex:1;line-height:1.4}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height .4s ease;
}
.faq-answer-inner{padding:0 24px 20px 68px;font-size:14px;color:var(--text-light);line-height:1.8}

/* ============ CTA ============ */
.cta-section{
  background:var(--primary);position:relative;overflow:hidden;
  padding:88px 0;
}
.cta-section::before{
  content:'';position:absolute;top:-60px;right:-60px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.05);border:2px solid rgba(255,255,255,.08);
}
.cta-section::after{
  content:'';position:absolute;bottom:-80px;left:-80px;width:300px;height:300px;border-radius:50%;
  background:rgba(255,255,255,.04);border:2px dashed rgba(255,255,255,.1);
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto;padding:0 24px}
.cta-inner h2{font-size:36px;font-weight:800;color:#fff;margin-bottom:16px;line-height:1.3}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.8);margin-bottom:32px}
.cta-inner .btn{margin:0 8px}

/* ============ Footer ============ */
.site-footer{background:#2A3A4A;color:#C8D1DA;padding:60px 0 0}
.footer-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:1.2fr 1fr;gap:48px;
  padding-bottom:40px;
}
.footer-logo{font-size:22px;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo .logo-icon{background:var(--accent);color:#2A3A4A}
.footer-brand p{font-size:14px;line-height:1.7;max-width:320px}
.footer-links-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:1px}
.footer-links{display:flex;flex-wrap:wrap;gap:8px 24px}
.footer-links a{font-size:14px;color:#C8D1DA;transition:var(--transition)}
.footer-links a:hover{color:var(--accent);transform:translateX(3px)}
.footer-bottom{
  background:#22303D;padding:18px 0;font-size:13px;color:#8FA0AE;
}
.footer-bottom .container{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.footer-icp{margin-left:16px}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  :root{--space-section:72px}
  .header-inner{flex-wrap:wrap;height:auto;padding:14px 20px;gap:14px}
  .main-nav{order:3;width:100%;overflow-x:auto;justify-content:flex-start;padding-bottom:4px}
  .nav-link{font-size:14px;padding:6px 12px;flex-shrink:0}
  .search-box{width:160px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .events-grid{grid-template-columns:1fr;gap:20px}
  .steps-track{grid-template-columns:repeat(2,1fr);gap:28px}
  .hero h1{font-size:36px}
  .hero-subtitle{font-size:16px}
  .cta-inner h2{font-size:28px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--space-section:56px;--header-h:60px}
  .container{padding:0 16px}
  .header-inner{height:var(--header-h);flex-wrap:nowrap;padding:0 16px;gap:10px}
  .logo-text{font-size:17px}
  .logo-icon{width:30px;height:30px;font-size:14px}
  .main-nav{
    display:none;position:fixed;top:var(--header-h);left:0;right:0;
    background:#fff;flex-direction:column;align-items:stretch;
    padding:8px 16px 16px;border-bottom:1px solid var(--border);
    box-shadow:0 8px 24px rgba(28,55,90,.1);
    z-index:999;
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 12px;width:100%;justify-content:flex-start}
  .nav-link.active::after{display:none}
  .nav-link.active{background:var(--primary-light);border-radius:var(--radius-sm)}
  .header-actions{position:fixed;top:10px;right:56px;z-index:1001;gap:8px}
  .header-actions .search-box{width:36px;height:36px;padding:0;justify-content:center;border-radius:50%}
  .header-actions .search-box input{display:none}
  .header-actions .search-box button{background:transparent;width:100%;height:100%}
  .btn-login{display:none}
  .btn-start{display:none}
  .hamburger{display:flex}
  .hero{min-height:480px}
  .hero h1{font-size:28px}
  .hero-subtitle{font-size:14px;letter-spacing:2px}
  .hero-actions .btn{padding:10px 22px;min-height:40px;font-size:14px}
  .hero-scroll{bottom:16px}
  .stats-section{margin-top:-24px;padding:0 16px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:12px}
  .stat-num{font-size:26px}
  .stat-card{padding:18px 12px}
  .section-header h2{font-size:24px}
  .section-header p{font-size:14px}
  .gameplay-grid{grid-template-columns:1fr;gap:16px}
  .gameplay-card{padding:24px 20px}
  .rewards-scroll{padding-right:16px}
  .reward-card{min-width:220px;padding:20px 16px}
  .steps-track{grid-template-columns:1fr 1fr;gap:20px}
  .step-circle{width:56px;height:56px;font-size:18px}
  .news-card{flex-direction:column}
  .news-thumb{width:100%;height:120px}
  .news-info{padding:16px}
  .news-info h3{font-size:16px}
  .news-meta{flex-wrap:wrap;gap:8px}
  .news-more{display:none}
  .faq-question{padding:16px}
  .faq-answer-inner{padding:0 16px 16px 56px}
  .cta-section{padding:56px 0}
  .cta-inner h2{font-size:24px}
  .footer-inner{grid-template-columns:1fr;gap:24px}
  .footer-bottom .container{flex-direction:column;text-align:center}
  .footer-icp{margin-left:0;display:block;margin-top:6px}
}

/* roulang page: article */
:root {
    --primary: #2A5C9E;
    --primary-dark: #1F4A80;
    --primary-light: #EAF1F8;
    --accent: #D9A45D;
    --accent-dark: #C6903F;
    --accent-light: #FDF8F0;
    --bg: #F7FAFC;
    --card: #FFFFFF;
    --text: #243447;
    --text-secondary: #5A6B7D;
    --text-light: #7A8A9B;
    --border: #E6ECF3;
    --border-dark: #B0C4DE;
    --success: #3BA676;
    --warning: #E8B04B;
    --error: #E25C4D;
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 6px;
    --radius-full: 999px;
    --shadow: 0 4px 12px rgba(28, 55, 90, 0.08);
    --shadow-hover: 0 8px 24px rgba(28, 55, 90, 0.14);
    --shadow-focus: 0 0 0 3px rgba(42, 92, 158, 0.25);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container: 1200px;
    --header-height: 72px;
    --space-section: 96px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
ul, ol { list-style: none; }

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

.site-header { position: sticky; top: 0; z-index: 1000; background: #fff; border-bottom: 1px solid var(--border); transition: box-shadow 0.3s ease; }
.site-header.scrolled { box-shadow: 0 4px 16px rgba(28, 55, 90, 0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: var(--header-height); }

.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; background: var(--primary); color: #fff; border-radius: 10px; font-weight: 800; font-size: 14px; letter-spacing: 0; box-shadow: 0 2px 6px rgba(42, 92, 158, 0.2); transition: var(--transition); }
.logo:hover .logo-icon { background: var(--primary-dark); transform: translateY(-1px); }
.logo-text { font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: -0.2px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link { display: inline-block; padding: 10px 16px; font-size: 15px; font-weight: 500; color: var(--text-secondary); border-radius: var(--radius-md); transition: var(--transition); position: relative; }
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: var(--primary); font-weight: 600; background: var(--primary-light); }
.nav-link.active::after { content: ''; position: absolute; left: 16px; right: 16px; bottom: -1px; height: 2px; background: var(--primary); border-radius: 2px; }

.header-actions { display: flex; align-items: center; gap: 12px; }
.search-box { display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-full); padding: 0 14px; height: 40px; width: 220px; transition: var(--transition); }
.search-box:focus-within { border-color: var(--primary); box-shadow: var(--shadow-focus); background: #fff; }
.search-box input { flex: 1; border: none; outline: none; background: transparent; font-size: 14px; color: var(--text); padding: 0 8px 0 0; }
.search-box input::placeholder { color: var(--text-light); }
.search-box button { display: inline-flex; align-items: center; justify-content: center; color: var(--text-light); padding: 4px; transition: var(--transition); }
.search-box button:hover { color: var(--primary); }

.login-link { font-size: 14px; font-weight: 500; color: var(--text-secondary); padding: 8px 12px; border-radius: var(--radius-md); transition: var(--transition); }
.login-link:hover { color: var(--primary); background: var(--primary-light); }

.btn-start { display: inline-flex; align-items: center; justify-content: center; height: 40px; padding: 0 20px; background: var(--accent); color: #fff; font-size: 14px; font-weight: 700; border-radius: var(--radius-md); box-shadow: 0 2px 8px rgba(217, 164, 93, 0.3); transition: var(--transition); white-space: nowrap; }
.btn-start:hover { background: var(--accent-dark); box-shadow: 0 4px 12px rgba(217, 164, 93, 0.4); transform: translateY(-2px); }
.btn-start:focus-visible { outline: none; box-shadow: var(--shadow-focus); }

.btn-outline { display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 28px; border: 2px solid var(--primary); color: var(--primary); font-size: 15px; font-weight: 600; border-radius: var(--radius-md); background: transparent; transition: var(--transition); }
.btn-outline:hover { background: var(--primary-light); border-color: var(--primary-dark); color: var(--primary-dark); transform: translateY(-2px); }
.btn-outline:focus-visible { outline: none; box-shadow: var(--shadow-focus); }

.btn-white { display: inline-flex; align-items: center; justify-content: center; height: 48px; padding: 0 36px; background: #fff; color: var(--primary); font-size: 16px; font-weight: 700; border-radius: var(--radius-md); box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1); transition: var(--transition); }
.btn-white:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15); }
.btn-white:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.5); }

.menu-toggle { display: none; flex-direction: column; gap: 5px; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: var(--radius-md); transition: var(--transition); }
.menu-toggle span { display: block; width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.breadcrumb-section { background: #fff; border-bottom: 1px solid var(--border); padding: 14px 0; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 14px; color: var(--text-light); }
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { color: var(--primary-dark); text-decoration: underline; }
.breadcrumb .sep { color: #B0C4DE; font-size: 14px; }
.breadcrumb .current { color: var(--text-light); }

.article-section { padding: 56px 0 var(--space-section); }
.article-wrapper { max-width: 860px; margin: 0 auto; }
.article-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 48px 56px; transition: var(--transition); }
.article-card:hover { box-shadow: var(--shadow-hover); }
.article-title { font-size: 38px; font-weight: 800; line-height: 1.3; color: var(--text); letter-spacing: -0.5px; margin-bottom: 20px; }
.article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; padding-bottom: 24px; border-bottom: 1px solid var(--border); margin-bottom: 32px; }
.meta-item { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-light); }
.meta-item svg { flex-shrink: 0; }

.article-content { font-size: 16px; line-height: 1.85; color: var(--text-secondary); }
.article-content p { margin-bottom: 24px; color: var(--text-secondary); font-size: 16px; line-height: 1.85; }
.article-content h2 { font-size: 26px; font-weight: 700; color: var(--text); margin: 36px 0 18px; line-height: 1.4; padding-left: 14px; border-left: 4px solid var(--primary); }
.article-content h3 { font-size: 22px; font-weight: 600; color: var(--text); margin: 30px 0 14px; line-height: 1.4; }
.article-content h4 { font-size: 18px; font-weight: 600; color: var(--text); margin: 24px 0 12px; }
.article-content ul, .article-content ol { margin: 16px 0 24px; padding-left: 24px; }
.article-content ul li { list-style: disc; margin-bottom: 10px; }
.article-content ol li { list-style: decimal; margin-bottom: 10px; }
.article-content li { line-height: 1.7; }
.article-content img { max-width: 100%; border-radius: var(--radius-lg); margin: 24px 0; box-shadow: var(--shadow); width: auto; height: auto; }
.article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--primary-dark); }
.article-content blockquote { border-left: 4px solid var(--accent); background: var(--accent-light); padding: 18px 22px; margin: 24px 0; border-radius: 0 var(--radius-md) var(--radius-md) 0; color: var(--text-secondary); font-style: normal; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-content th { background: var(--primary-light); color: var(--primary-dark); font-weight: 600; padding: 10px 14px; text-align: left; border: 1px solid var(--border); }
.article-content td { padding: 10px 14px; border: 1px solid var(--border); }
.article-content code { background: var(--bg); border: 1px solid var(--border); border-radius: 4px; padding: 2px 6px; font-size: 14px; font-family: "SF Mono", "Consolas", monospace; }

.article-empty { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 80px 48px; text-align: center; }
.empty-icon { display: inline-flex; align-items: center; justify-content: center; width: 80px; height: 80px; background: var(--primary-light); color: var(--primary); border-radius: 50%; font-size: 32px; font-weight: 800; margin-bottom: 24px; }
.article-empty h1 { font-size: 28px; font-weight: 700; color: var(--text); margin-bottom: 12px; }
.article-empty p { color: var(--text-light); margin-bottom: 28px; }

.related-section { padding: 0 0 var(--space-section); }
.section-title { font-size: 28px; font-weight: 700; color: var(--text); margin-bottom: 40px; display: flex; align-items: center; gap: 12px; }
.section-title::before { content: ''; width: 4px; height: 24px; background: var(--primary); border-radius: 4px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--border-dark); }
.related-thumb { position: relative; overflow: hidden; aspect-ratio: 16 / 10; background: var(--bg); }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .related-thumb img { transform: scale(1.05); }
.related-info { padding: 20px 22px; display: flex; flex-direction: column; flex: 1; }
.related-info h3 { font-size: 17px; font-weight: 600; color: var(--text); line-height: 1.4; margin-bottom: 8px; transition: var(--transition); }
.related-card:hover .related-info h3 { color: var(--primary); }
.related-info p { font-size: 14px; color: var(--text-light); line-height: 1.6; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-more { margin-top: auto; font-size: 13px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 4px; transition: var(--transition); }
.related-card:hover .related-more { gap: 8px; color: var(--primary-dark); }

.back-section { padding: 0 0 var(--space-section); text-align: center; }
.back-link { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 600; color: var(--primary); padding: 10px 20px; border-radius: var(--radius-md); transition: var(--transition); }
.back-link:hover { color: var(--primary-dark); background: var(--primary-light); }
.back-link svg { transition: transform 0.3s ease; }
.back-link:hover svg { transform: translateX(-4px); }

.cta-section { background: var(--primary); padding: 72px 24px; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -60px; right: -60px; width: 200px; height: 200px; border: 2px solid rgba(255, 255, 255, 0.08); border-radius: 50%; }
.cta-section::after { content: ''; position: absolute; bottom: -40px; left: -40px; width: 120px; height: 120px; border: 2px solid rgba(255, 255, 255, 0.06); border-radius: 50%; }
.cta-inner { text-align: center; position: relative; z-index: 1; }
.cta-inner h2 { font-size: 32px; font-weight: 800; color: #fff; margin-bottom: 14px; letter-spacing: -0.3px; }
.cta-inner p { font-size: 16px; color: rgba(255, 255, 255, 0.85); margin-bottom: 32px; }
.cta-inner .btn-white { margin-top: 4px; }

.site-footer { background: #2A3A4A; color: #C8D1DA; padding-top: 56px; }
.footer-inner { max-width: var(--container); margin: 0 auto; padding: 0 24px 40px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; }
.footer-brand .footer-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 14px; }
.footer-brand .logo-icon { width: 32px; height: 32px; font-size: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: #9AAEBC; max-width: 360px; }
.footer-links-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 14px; }
.footer-links { display: grid; grid-template-columns: repeat(2, auto); gap: 10px 24px; }
.footer-links a { font-size: 14px; color: #9AAEBC; transition: var(--transition); padding: 2px 0; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 18px 0; }
.footer-bottom .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.footer-bottom span { font-size: 13px; color: #7A8A9B; }
.footer-icp { font-size: 13px; color: #7A8A9B; }

@media (max-width: 1023px) {
    .header-inner { gap: 12px; }
    .search-box { width: 180px; }
    .main-nav { gap: 2px; }
    .nav-link { padding: 8px 12px; font-size: 14px; }
    .btn-start { padding: 0 16px; font-size: 13px; }
    .related-grid { gap: 16px; }
    .article-card { padding: 40px 36px; }
}

@media (max-width: 767px) {
    :root { --header-height: 60px; --space-section: 56px; }
    .container { padding: 0 16px; }
    .main-nav { position: fixed; top: var(--header-height); left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); flex-direction: column; align-items: flex-start; padding: 16px 24px; gap: 6px; display: none; box-shadow: 0 8px 24px rgba(28, 55, 90, 0.1); }
    .main-nav.open { display: flex; }
    .nav-link { display: block; width: 100%; padding: 12px 14px; font-size: 15px; border-radius: var(--radius-md); }
    .nav-link.active::after { left: 0; right: auto; width: 3px; height: 20px; top: 50%; transform: translateY(-50%); bottom: auto; }
    .search-box { display: none; }
    .login-link { display: none; }
    .menu-toggle { display: flex; }
    .btn-start { height: 36px; padding: 0 14px; font-size: 13px; }
    .article-section { padding: 32px 0 var(--space-section); }
    .article-card { padding: 28px 20px; border-radius: 10px; }
    .article-title { font-size: 26px; margin-bottom: 16px; }
    .article-meta { gap: 12px; padding-bottom: 18px; margin-bottom: 24px; flex-wrap: wrap; }
    .meta-item { font-size: 12px; }
    .article-content { font-size: 15px; line-height: 1.75; }
    .article-content p { font-size: 15px; line-height: 1.75; margin-bottom: 18px; }
    .article-content h2 { font-size: 22px; }
    .article-content h3 { font-size: 19px; }
    .related-grid { grid-template-columns: 1fr; gap: 16px; }
    .related-thumb { aspect-ratio: 16 / 8; }
    .section-title { font-size: 22px; margin-bottom: 28px; }
    .cta-section { padding: 56px 16px; }
    .cta-inner h2 { font-size: 24px; }
    .cta-inner p { font-size: 14px; }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom .container { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
:root {
            --primary: #2A5C9E;
            --primary-dark: #1F4A80;
            --primary-light: #EAF1F8;
            --accent: #D9A45D;
            --accent-dark: #C6903F;
            --bg: #F7FAFC;
            --card: #FFFFFF;
            --text: #2D3748;
            --text-secondary: #5A6B7C;
            --text-light: #7A8A9B;
            --border: #E6ECF3;
            --border-strong: #B0C4DE;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-input: 10px;
            --radius-badge: 999px;
            --shadow: 0 4px 12px rgba(28, 55, 90, 0.08);
            --shadow-hover: 0 8px 24px rgba(28, 55, 90, 0.14);
            --container: 1200px;
            --section-space: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Helvetica Neue", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }

        a:hover {
            color: var(--primary-dark);
        }

        button,
        input {
            font-family: inherit;
            border: none;
        }

        button {
            cursor: pointer;
        }

        input:focus {
            outline: none;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all .25s ease;
            white-space: nowrap;
            border: 2px solid transparent;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(42, 92, 158, .4);
            outline-offset: 2px;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(217, 164, 93, .3);
        }

        .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(-1px);
            box-shadow: 0 4px 12px rgba(42, 92, 158, .3);
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        .btn-ghost:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(42, 92, 158, .04);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, .7);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            color: #fff;
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }

        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, .16);
        }

        .btn-large {
            height: 52px;
            padding: 0 36px;
            font-size: 16px;
        }

        /* === Header === */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #fff;
            border-bottom: 1px solid var(--border);
            transition: box-shadow .3s;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(28, 55, 90, .06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 800;
            border-radius: 8px;
            letter-spacing: .5px;
            font-style: normal;
        }

        .main-nav {
            display: flex;
            gap: 24px;
            align-items: center;
        }

        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 4px;
            white-space: nowrap;
            transition: color .2s;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 4px;
            right: 4px;
            bottom: 0;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            width: 200px;
            height: 40px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            padding: 0 12px;
            transition: border-color .2s, box-shadow .2s;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(42, 92, 158, .12);
        }

        .search-box input {
            flex: 1;
            background: transparent;
            font-size: 14px;
            color: var(--text);
        }

        .search-box input::placeholder {
            color: var(--text-light);
        }

        .search-btn {
            background: none;
            color: var(--text-light);
            padding: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: color .2s;
        }

        .search-btn:hover {
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            background: none;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
        }

        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all .3s;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* === Page Hero === */
        .page-hero {
            padding: 120px 0 96px;
            background: linear-gradient(135deg, rgba(15, 29, 48, .78), rgba(31, 62, 99, .62)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            position: relative;
            text-align: center;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .25);
            padding: 6px 18px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            letter-spacing: 1px;
            color: #EAF1F8;
            margin-bottom: 24px;
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 700;
            letter-spacing: 3px;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, .3);
        }

        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, .9);
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* === Section Base === */
        .section {
            padding: var(--section-space) 0;
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            display: flex;
            align-items: center;
        }

        .section-head h2::before {
            content: "◆";
            color: var(--accent);
            font-size: 18px;
            margin-right: 10px;
            flex-shrink: 0;
        }

        .section-head p {
            margin-top: 10px;
            color: var(--text-light);
            font-size: 15px;
        }

        /* === Feature Grid === */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            position: relative;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .feature-card::after {
            content: "";
            position: absolute;
            inset: 10px;
            border: 1px dashed var(--border-strong);
            border-radius: 8px;
            pointer-events: none;
            opacity: 0;
            transition: opacity .3s;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-strong);
        }

        .feature-card:hover::after {
            opacity: .6;
        }

        .feature-num {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 2px;
            background: #FDF6EC;
            border: 1px solid #F0DFC0;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 20px;
            margin-bottom: 10px;
            color: var(--text);
        }

        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* === Scene Section === */
        .scene-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .scene-row {
            display: flex;
            align-items: center;
            gap: 40px;
            margin-bottom: 28px;
            padding: 28px;
            background: var(--bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            transition: box-shadow .3s, border-color .3s;
        }

        .scene-row:last-child {
            margin-bottom: 0;
        }

        .scene-row:hover {
            box-shadow: var(--shadow);
            border-color: var(--border-strong);
        }

        .scene-row.reverse {
            flex-direction: row-reverse;
        }

        .scene-row img {
            width: 42%;
            height: 240px;
            object-fit: cover;
            border-radius: 10px;
            box-shadow: var(--shadow);
            flex-shrink: 0;
        }

        .scene-info {
            flex: 1;
        }

        .scene-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }

        .scene-info h3 {
            font-size: 22px;
            margin-bottom: 8px;
            color: var(--text);
        }

        .scene-info p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }

        /* === Steps Section === */
        .steps-row {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 20px;
            position: relative;
            margin-bottom: 40px;
        }

        .steps-row::before {
            content: "";
            position: absolute;
            top: 24px;
            left: 8%;
            right: 8%;
            height: 0;
            border-top: 2px dashed var(--border-strong);
            z-index: 0;
        }

        .step-item {
            text-align: center;
            flex: 1;
            position: relative;
            z-index: 1;
            padding: 0 8px;
        }

        .step-node {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #fff;
            border: 2px solid var(--border-strong);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--text-light);
            font-size: 16px;
            margin: 0 auto 16px;
            transition: all .3s;
        }

        .step-item.done .step-node {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .step-item.active .step-node {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            box-shadow: 0 0 0 6px rgba(217, 164, 93, .2);
        }

        .step-item h3 {
            font-size: 16px;
            margin-bottom: 6px;
            color: var(--text);
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }

        .steps-cta {
            text-align: center;
            margin-top: 32px;
        }

        /* === News Section === */
        .news-section {
            background: var(--bg);
        }

        .news-list {
            max-width: 960px;
            margin: 0 auto;
        }

        .news-card {
            display: flex;
            gap: 24px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            margin-bottom: 20px;
            transition: transform .3s, box-shadow .3s, border-color .3s;
        }

        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-strong);
        }

        .news-card img {
            width: 200px;
            height: 120px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .news-content {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-content h3 {
            font-size: 18px;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 6px;
            transition: color .2s;
        }

        .news-card:hover .news-content h3 {
            color: var(--primary);
        }

        .news-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 10px;
        }

        .news-date {
            font-size: 13px;
            color: var(--text-light);
        }

        .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
        }

        /* === FAQ Section === */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow .3s, border-color .3s;
        }

        .faq-item[open] {
            box-shadow: var(--shadow);
            border-color: var(--border-strong);
        }

        .faq-item summary {
            list-style: none;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color .2s;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "+";
            font-size: 24px;
            color: var(--accent);
            font-weight: 400;
            transition: transform .3s;
            line-height: 1;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

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

        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }

        /* === Guide Section === */
        .guide-section {
            background: var(--bg);
        }

        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .guide-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: transform .3s, box-shadow .3s, border-color .3s;
            color: var(--text);
        }

        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            color: var(--text);
        }

        .guide-card h3 {
            font-size: 18px;
        }

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

        .guide-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .guide-card:hover .guide-link {
            color: var(--accent);
        }

        /* === CTA Section === */
        .cta-section {
            padding: 80px 0;
            background: var(--primary);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "◆";
            position: absolute;
            right: 3%;
            top: 50%;
            transform: translateY(-50%);
            font-size: 160px;
            color: rgba(255, 255, 255, .04);
        }

        .cta-section h2 {
            font-size: 34px;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .85);
            margin-bottom: 30px;
            font-size: 16px;
            position: relative;
            z-index: 1;
        }

        /* === Footer === */
        .site-footer {
            background: #2A3A4A;
            color: #C8D1DA;
            padding: 64px 0 0;
        }

        .footer-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px 40px;
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 48px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-icon {
            background: rgba(255, 255, 255, .16);
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #A6B4C2;
            max-width: 360px;
        }

        .footer-links-title {
            color: #fff;
            font-size: 16px;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #A6B4C2;
            font-size: 14px;
            transition: color .2s;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #8A9AAC;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-icp {
            color: #7A8A9B;
        }

        /* === Responsive === */
        @media (max-width: 1023px) {
            :root {
                --section-space: 72px;
            }

            .header-actions .search-box {
                display: none;
            }

            .main-nav {
                gap: 16px;
            }

            .scene-row {
                gap: 24px;
                padding: 20px;
            }

            .scene-row img {
                width: 45%;
                height: 200px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-space: 56px;
            }

            .header-inner {
                height: 60px;
            }

            .main-nav {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                display: none;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                box-shadow: 0 8px 24px rgba(28, 55, 90, .08);
                gap: 6px;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav .nav-link {
                width: 100%;
                padding: 12px 4px;
                font-size: 16px;
                border-bottom: 1px solid var(--border);
            }

            .main-nav .nav-link:last-child {
                border-bottom: none;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-link.active {
                background: var(--primary-light);
                border-radius: 8px;
                padding-left: 12px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .page-hero {
                padding: 80px 0 64px;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .hero-sub {
                font-size: 16px;
                line-height: 1.7;
            }

            .section-head h2 {
                font-size: 26px;
                flex-wrap: wrap;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .scene-row,
            .scene-row.reverse {
                flex-direction: column;
                padding: 20px;
            }

            .scene-row img {
                width: 100%;
                height: 180px;
            }

            .scene-info h3 {
                font-size: 20px;
            }

            .steps-row {
                flex-direction: column;
                align-items: stretch;
                gap: 28px;
            }

            .steps-row::before {
                display: none;
            }

            .step-item {
                display: flex;
                align-items: center;
                text-align: left;
                gap: 16px;
                padding: 0;
            }

            .step-node {
                margin: 0;
                flex-shrink: 0;
            }

            .step-item h3 {
                margin-bottom: 2px;
            }

            .step-item p {
                font-size: 13px;
            }

            .news-card {
                flex-direction: column;
                padding: 16px;
            }

            .news-card img {
                width: 100%;
                height: 160px;
            }

            .guide-grid {
                grid-template-columns: 1fr;
            }

            .cta-section h2 {
                font-size: 26px;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 28px;
            }

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }

            .btn-login {
                display: none;
            }

            .btn-start {
                padding: 0 16px;
            }
        }