/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --primary:#1F5AA8;
  --primary-dark:#16407A;
  --primary-light:#E8F0FA;
  --primary-line:#C6D9F0;
  --green:#2E9E8F;
  --green-light:#E4F4F1;
  --orange:#E0762F;
  --orange-dark:#C96522;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --band:#F0F4F9;
  --text:#1B2330;
  --text-2:#5A6675;
  --text-3:#8A94A3;
  --border:#E3E8EF;
  --line:#EDF1F6;
  --success:#2E9E5F;
  --warning:#D9A22B;
  --danger:#C7443C;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh:0 2px 4px rgba(27,35,48,.04),0 12px 28px rgba(31,90,168,.07);
  --sh-hover:0 6px 14px rgba(27,35,48,.06),0 18px 36px rgba(31,90,168,.10);
  --container:1200px;
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out;}
a:hover{text-decoration:underline;text-underline-offset:3px;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(31,90,168,.28);outline-offset:2px;border-radius:8px;}
::selection{background:rgba(31,90,168,.16);}

/* ============ 容器与板块 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1280px){.container{max-width:1240px;}}
.section{padding:96px 0;}
.section--band{background:var(--band);}
@media (max-width:1023px){.section{padding:72px 0;}}
@media (max-width:767px){.section{padding:48px 0;} .container{padding:0 20px;}}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px;}
.section-head h2{font-size:30px;position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;background:var(--primary);}
.section-head .section-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:640px;}
@media (max-width:767px){.section-head h2{font-size:23px;} .section-head{margin-bottom:28px;}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--primary);background:#fff;border:1px solid var(--primary-line);
  padding:5px 14px;border-radius:999px;
}
.eyebrow--plain{background:var(--green-light);border-color:transparent;color:var(--green);}

.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);}
.link-more i{transition:transform .18s ease-out;}
.link-more:hover{text-decoration:none;}
.link-more:hover i{transform:translateX(3px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  text-decoration:none;white-space:nowrap;
  transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(31,90,168,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(31,90,168,.2);}
.btn-accent{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(224,118,47,.26);}
.btn-accent:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{background:#fff;border-color:var(--primary-line);color:var(--primary);}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
@media (max-width:767px){.btn{height:48px;width:100%;}}

/* ============ 顶部细条 ============ */
.topbar{background:#fff;border-bottom:1px solid var(--border);font-size:13px;color:var(--text-2);}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px;}
.topbar-msg{display:flex;align-items:center;gap:8px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}
.topbar-msg i{color:var(--green);}
.topbar-close{background:none;border:0;color:var(--text-3);cursor:pointer;font-size:14px;padding:6px 8px;border-radius:8px;line-height:1;}
.topbar-close:hover{color:var(--primary);background:var(--primary-light);}
@media (max-width:767px){.topbar{display:none;}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:saturate(180%) blur(8px);backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--border);transition:box-shadow .2s ease-out;
}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(27,35,48,.07);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.site-header.is-stuck .nav-wrap{height:64px;}

.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,#2B7ACB,var(--primary-dark));
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:16px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;color:var(--text);white-space:nowrap;}
.brand-sub{font-size:11px;letter-spacing:.08em;color:var(--text-3);white-space:nowrap;}

.nav-links{display:flex;align-items:center;gap:8px;}
.nav-links li{list-style:none;}
.nav-links a{
  position:relative;display:inline-block;padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--text-2);transition:color .18s ease-out,background .18s ease-out;
}
.nav-links a:hover{color:var(--primary);background:var(--primary-light);text-decoration:none;}
.nav-links a.active{color:var(--primary);font-weight:600;}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--primary);}

.nav-right{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--text);align-items:center;justify-content:center;cursor:pointer;font-size:18px;
}
.nav-toggle:hover{background:var(--primary-light);color:var(--primary);}
.nav-cta-mobile{display:none;}

@media (max-width:1023px){
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .nav-links{
    position:fixed;top:72px;left:0;right:0;bottom:0;z-index:80;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:16px 20px 40px;overflow-y:auto;
    transform:translateX(100%);transition:transform .22s ease-out;
    box-shadow:-8px 0 30px rgba(27,35,48,.08);
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{min-height:52px;display:flex;align-items:center;padding:0 16px;font-size:16px;border-radius:12px;}
  .nav-links a.active{background:var(--primary-light);}
  .nav-links a.active::after{display:none;}
  .nav-cta-mobile{display:block;margin-top:14px;}
}
@media (max-width:767px){
  .nav-wrap{height:64px;}
  .brand-name{font-size:15px;}
  .brand-sub{display:none;}
  .nav-links{top:64px;}
}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--primary-light);}
.hero-media{position:absolute;inset:0;}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.88) 38%,rgba(232,240,250,.62) 68%,rgba(31,90,168,.22) 100%);
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) 384px;
  gap:48px;align-items:center;padding-top:72px;padding-bottom:72px;
}
.hero-copy{max-width:640px;}
.hero-title{font-size:44px;line-height:1.24;margin-top:20px;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--text-2);}
.hero-points{margin-top:24px;display:grid;gap:12px;}
.hero-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2);line-height:1.7;}
.hero-points i{color:var(--green);margin-top:5px;flex:none;}
.hero-actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;}

.signup-card{
  background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-hover);
  border-top:4px solid var(--primary);overflow:hidden;
}
.signup-head{padding:22px 24px 18px;border-bottom:1px dashed var(--line);}
.signup-head h2{font-size:19px;}
.signup-head p{margin-top:6px;font-size:13px;color:var(--text-3);}
.signup-body{padding:20px 24px 24px;display:grid;gap:16px;}
.signup-row{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:14px;}
.signup-row .k{color:var(--text-3);flex:none;}
.signup-row .v{color:var(--text);font-weight:600;text-align:right;}
.progress{height:8px;border-radius:999px;background:var(--primary-light);overflow:hidden;}
.progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--orange),#F0A063);}
.signup-note{font-size:12.5px;color:var(--text-3);line-height:1.6;}
@media (max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:32px;padding-top:52px;padding-bottom:52px;}
  .hero-title{font-size:34px;}
  .signup-card{max-width:520px;}
}
@media (max-width:767px){
  .hero-inner{padding-top:36px;padding-bottom:40px;}
  .hero-title{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .signup-card{max-width:none;}
}

/* ============ 数据条 ============ */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.stat{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--primary-line);}
.stat-value{font-size:26px;font-weight:700;color:var(--primary);letter-spacing:.01em;}
.stat-label{margin-top:8px;font-size:15px;font-weight:600;color:var(--text);}
.stat-desc{margin-top:6px;font-size:13.5px;color:var(--text-3);line-height:1.65;}
@media (max-width:1023px){.stats{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:520px){.stats{grid-template-columns:1fr;}}

/* ============ 时间线 ============ */
.timeline{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));position:relative;padding-top:6px;}
.timeline::before{content:"";position:absolute;left:8%;right:8%;top:20px;height:1px;background:var(--primary-line);}
.tl-item{position:relative;padding:0 14px;text-align:center;}
.tl-dot{
  width:12px;height:12px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 4px var(--primary-light);margin:8px auto 20px;position:relative;z-index:1;
}
.tl-badge{display:inline-block;font-size:13px;font-weight:600;color:var(--green);background:var(--green-light);padding:4px 12px;border-radius:999px;}
.tl-item h3{font-size:17px;margin:14px 0 8px;}
.tl-item p{font-size:14px;color:var(--text-2);line-height:1.65;}
.tl-item.is-current .tl-dot{background:var(--orange);box-shadow:0 0 0 4px rgba(224,118,47,.18);}
.tl-item.is-current .tl-badge{background:#FBEADF;color:var(--orange-dark);}
@media (max-width:1023px){
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));}
  .timeline::before{display:none;}
  .tl-item{text-align:left;padding:0 0 26px 0;}
  .tl-dot{margin:6px 0 14px;}
}
@media (max-width:767px){
  .timeline{grid-template-columns:1fr;padding-left:24px;position:relative;}
  .timeline::before{display:block;left:5px;top:16px;bottom:24px;right:auto;width:1px;height:auto;}
  .tl-item{padding:0 0 28px 0;}
  .tl-dot{position:absolute;left:-24px;top:10px;margin:0;}
}

/* ============ 亮点与团队 ============ */
.feature-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:stretch;}
.feature-main{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);min-height:420px;}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out;}
.feature-main:hover img{transform:scale(1.03);}
.feature-layer{
  position:absolute;left:0;right:0;bottom:0;padding:30px 28px 26px;color:#fff;
  background:linear-gradient(180deg,rgba(22,64,122,0) 0%,rgba(22,64,122,.88) 100%);
}
.feature-layer h3{color:#fff;font-size:22px;}
.feature-layer p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.86);line-height:1.7;}
.feature-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
.feature-tags span{font-size:12.5px;padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.18);color:#fff;}
.feature-side{display:grid;gap:16px;align-content:stretch;}
.person-card{
  display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.person-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--primary-line);}
.person-card img{width:56px;height:56px;border-radius:50%;object-fit:cover;border:1px solid var(--primary-line);flex:none;}
.person-card h3{font-size:16px;}
.person-card p{margin-top:5px;font-size:13.5px;color:var(--text-3);line-height:1.6;}
@media (max-width:1023px){
  .feature-grid{grid-template-columns:1fr;}
  .feature-main{min-height:320px;}
}

/* ============ 票种 ============ */
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start;}
.plan{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:34px 28px 28px;box-shadow:var(--sh);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.plan:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.plan.is-featured{border:2px solid var(--primary);transform:translateY(-12px);box-shadow:var(--sh-hover);}
.plan.is-featured:hover{transform:translateY(-14px);}
.plan-flag{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--orange);color:#fff;font-size:12.5px;font-weight:600;
  padding:5px 16px;border-radius:999px;white-space:nowrap;
}
.plan-name{font-size:18px;}
.plan-price{font-size:32px;font-weight:700;color:var(--text);margin:18px 0 2px;line-height:1.2;}
.plan-price small{font-size:14px;font-weight:400;color:var(--text-3);margin-left:6px;}
.plan-desc{font-size:13.5px;color:var(--text-3);line-height:1.65;}
.plan-list{margin:22px 0 26px;display:grid;gap:12px;}
.plan-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.6;}
.plan-list i{color:var(--primary);margin-top:4px;flex:none;}
.plan-foot{margin-top:22px;padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3);line-height:1.6;}
.plans-note{margin-top:28px;font-size:13.5px;color:var(--text-3);}
@media (max-width:1023px){
  .plans{grid-template-columns:1fr;}
  .plan.is-featured{transform:none;order:-1;}
  .plan.is-featured:hover{transform:translateY(-3px);}
}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--primary-line);}
.news-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--primary-light);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.badge-on-img{
  position:absolute;left:12px;top:12px;background:#fff;color:var(--primary);
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;
  box-shadow:0 2px 8px rgba(27,35,48,.14);
}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{color:var(--text);}
.news-body h3 a:hover{color:var(--primary);text-decoration:none;}
.news-body .excerpt{
  font-size:14px;color:var(--text-2);line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.arrow-link{color:var(--primary);display:inline-flex;align-items:center;transition:transform .18s ease-out;}
.news-card:hover .arrow-link{transform:translateX(3px);}
.empty-state{
  grid-column:1 / -1;min-height:120px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;border:1px dashed var(--primary-line);border-radius:var(--r-card);
  background:#fff;color:var(--text-2);font-size:15px;text-align:center;padding:24px;
}
.empty-state i{font-size:24px;color:var(--primary-line);}
@media (max-width:1023px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:640px){.news-grid{grid-template-columns:1fr;}}

/* ============ FAQ ============ */
.faq{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);}
.faq details{border-bottom:1px solid var(--line);}
.faq details:last-child{border-bottom:0;}
.faq summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:18px 24px;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);
  transition:background .18s ease-out,color .18s ease-out;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{background:var(--primary-light);color:var(--primary-dark);}
.faq summary i{font-size:16px;color:var(--primary);flex:none;transition:transform .2s ease-out;}
.faq details[open] summary i{transform:rotate(180deg);}
.faq details[open] summary{background:var(--primary-light);}
.faq-a{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2);}
@media (max-width:767px){.faq summary{padding:16px 18px;font-size:15px;} .faq-a{padding:0 18px 20px;}}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(135deg,var(--primary-dark),#1F5AA8 62%,#2B7ACB);
  border-radius:18px;padding:48px;color:#fff;
  display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:40px;align-items:center;
  box-shadow:0 22px 48px rgba(22,64,122,.24);
}
.cta-band h2{color:#fff;font-size:30px;line-height:1.35;}
.cta-band .cta-desc{margin-top:16px;font-size:15.5px;color:rgba(255,255,255,.82);line-height:1.8;max-width:520px;}
.cta-points{margin-top:22px;display:grid;gap:10px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.86);}
.cta-points i{color:#8FD8CD;margin-top:5px;flex:none;}
.cta-form{background:#fff;border-radius:var(--r-card);padding:26px;box-shadow:0 18px 40px rgba(10,30,60,.18);}
.cta-form h3{font-size:18px;color:var(--text);margin-bottom:6px;}
.cta-form .form-hint{margin-bottom:18px;font-size:13px;color:var(--text-3);}
.field{display:grid;gap:7px;margin-bottom:14px;}
.field label{font-size:13px;font-weight:500;color:var(--text-2);}
.field .req{color:var(--orange);}
.field input,.field select{
  width:100%;height:48px;border-radius:10px;border:1px solid var(--border);
  background:var(--bg);padding:0 14px;font-size:15px;color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.field input::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,90,168,.16);background:#fff;}
.field input.is-error{border-color:var(--danger);background:#FDF3F2;}
.field .err{font-size:13px;color:var(--danger);display:none;}
.field.has-error .err{display:block;}
.form-foot{margin-top:16px;font-size:12.5px;color:var(--text-3);line-height:1.6;}
@media (max-width:1023px){
  .cta-band{grid-template-columns:1fr;padding:36px 28px;gap:28px;}
  .cta-band h2{font-size:24px;}
}
@media (max-width:767px){.cta-band{padding:28px 20px;border-radius:14px;}}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.16);}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:360px;}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-links{display:grid;gap:12px;}
.footer-links a{display:inline-block;font-size:14px;color:rgba(255,255,255,.76);transition:color .18s ease-out,transform .18s ease-out;}
.footer-links a:hover{color:#fff;transform:translateX(2px);text-decoration:none;}
.footer-meta{display:grid;gap:12px;font-size:14px;color:rgba(255,255,255,.76);}
.footer-meta span{display:flex;gap:10px;align-items:flex-start;line-height:1.7;}
.footer-meta i{color:#8FD8CD;margin-top:5px;flex:none;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.16);padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{padding-top:48px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:70;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--primary-line);color:var(--primary);
  display:grid;place-items:center;cursor:pointer;box-shadow:var(--sh);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s ease-out,background .18s ease-out;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--primary-light);}
@media (max-width:520px){.to-top{right:16px;bottom:18px;width:42px;height:42px;}}

/* ============ 动效偏好 ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --c-primary:#1F5AA8;
  --c-primary-dark:#16407A;
  --c-primary-light:#E8F0FA;
  --c-primary-border:#C6D9F0;
  --c-green:#2E9E8F;
  --c-green-light:#E4F4F1;
  --c-accent:#E0762F;
  --c-accent-dark:#C6631F;
  --bg-page:#F5F7FA;
  --bg-card:#FFFFFF;
  --bg-alt:#F0F4F9;
  --t-main:#1B2330;
  --t-sub:#5A6675;
  --t-weak:#8A94A3;
  --bd:#E3E8EF;
  --line:#EDF1F6;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 2px 4px rgba(27,35,48,.04),0 12px 28px rgba(31,90,168,.07);
  --sh-2:0 6px 14px rgba(27,35,48,.06),0 18px 36px rgba(31,90,168,.10);
  --sp-block:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t-main);
  background:var(--bg-page);
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;display:block;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:3px solid rgba(31,90,168,.28);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--bd);
  backdrop-filter:blur(8px);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--t-main);}
.brand:hover{color:var(--t-main);}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:11px;
  background:linear-gradient(135deg,#1F5AA8,#16407A);
  color:#fff;font-weight:700;font-size:18px;
  display:grid;place-items:center;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.01em;}
.brand-sub{font-size:10px;letter-spacing:.08em;color:var(--t-weak);text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:8px;}
.nav-links > li > a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  font-size:15px;color:var(--t-sub);position:relative;font-weight:500;
}
.nav-links > li > a:hover{background:var(--c-green-light);color:var(--c-primary-dark);}
.nav-links > li > a.active{color:var(--c-primary);font-weight:600;}
.nav-links > li > a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-3px;height:2px;border-radius:2px;background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;color:var(--c-primary);
  background:var(--c-primary-light);font-size:18px;place-items:center;
}
.nav-cta-mobile{display:none;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .16s ease-out,box-shadow .16s ease-out,background-color .16s ease-out,color .16s ease-out;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-primary:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(224,118,47,.22);}
.btn-accent:active{transform:translateY(0);}
.btn-secondary{background:#fff;color:var(--c-primary);border-color:var(--c-primary-border);}
.btn-secondary:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.btn-ghost{background:transparent;color:var(--c-primary);height:42px;padding:0 6px;text-decoration:underline;text-underline-offset:4px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:16px 0;font-size:13px;color:var(--t-weak);}
.crumb a{color:var(--t-weak);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C4CDDA;}
.crumb .current{color:var(--c-primary);max-width:46vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- layout ---------- */
.page-main{padding:48px 0 var(--sp-block);}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}

.article-shell{background:var(--bg-card);border:1px solid var(--bd);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:40px 44px 36px;}
.channel-tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-light);color:var(--c-primary);font-size:13px;font-weight:600;
}
.article-title{font-size:40px;line-height:1.3;font-weight:700;letter-spacing:.01em;margin:16px 0 18px;}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px;color:var(--t-weak);padding-bottom:22px;border-bottom:1px solid var(--line);}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{color:var(--c-primary-border);}

/* ---------- prose ---------- */
.article-content{max-width:760px;margin:0 auto;padding-top:28px;font-size:16px;line-height:1.9;color:var(--t-main);}
.article-content p{margin:0 0 1.1em;}
.article-content h2{
  position:relative;padding-left:16px;font-size:26px;line-height:1.4;font-weight:700;
  letter-spacing:.01em;margin:42px 0 16px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:6px;border-radius:3px;background:var(--c-primary);
}
.article-content h3{font-size:20px;font-weight:600;color:var(--c-primary);margin:30px 0 12px;line-height:1.45;}
.article-content h4{font-size:17px;font-weight:600;margin:22px 0 10px;}
.article-content ul,.article-content ol{margin:0 0 1.1em;padding-left:2px;}
.article-content ul li{position:relative;padding-left:22px;margin-bottom:8px;}
.article-content ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--c-primary);
}
.article-content ol{counter-reset:li;padding-left:0;}
.article-content ol li{position:relative;padding-left:32px;margin-bottom:8px;counter-increment:li;}
.article-content ol li::before{
  content:counter(li);position:absolute;left:0;top:.18em;width:22px;height:22px;border-radius:999px;
  background:var(--c-primary-light);color:var(--c-primary);font-size:12px;font-weight:700;
  display:grid;place-items:center;
}
.article-content a{text-decoration:underline;}
.article-content img{border-radius:var(--r-img);margin:24px auto;box-shadow:var(--sh-1);}
.article-content figure{margin:24px 0;}
.article-content figcaption{text-align:center;font-size:13px;color:var(--t-weak);margin-top:10px;}
.article-content blockquote{
  margin:24px 0;padding:18px 22px;background:var(--c-primary-light);
  border-left:4px solid var(--c-primary);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--t-sub);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;}
.article-content th,.article-content td{border:1px solid var(--bd);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-content th{background:var(--bg-alt);font-weight:600;}
.article-content hr{border:0;height:1px;background:var(--line);margin:32px 0;}

/* ---------- tags / pager ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--bg-alt);border:1px solid var(--bd);color:var(--t-sub);font-size:13px;
}
.tag:hover{background:var(--c-green-light);border-color:#BFE3DC;color:var(--c-green);}
.tag-label{display:inline-flex;align-items:center;font-size:13px;color:var(--t-weak);margin-right:4px;}

.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;}
.pager-card{
  display:block;background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);
  padding:18px 20px;color:var(--t-main);
}
.pager-card:hover{border-color:var(--c-primary-border);box-shadow:var(--sh-1);color:var(--t-main);transform:translateY(-2px);}
.pager-card .pager-kicker{font-size:12px;letter-spacing:.08em;color:var(--t-weak);text-transform:uppercase;}
.pager-card .pager-title{display:block;margin-top:6px;font-size:15px;font-weight:600;line-height:1.5;}
.pager-card.next{text-align:right;}
.back-row{margin-top:24px;}

/* ---------- empty ---------- */
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  text-align:center;color:var(--t-sub);padding:40px 20px;
}
.empty-state i{font-size:34px;color:var(--c-primary-border);}
.empty-state p{font-size:15px;}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;}
.side-title{
  font-size:15px;font-weight:700;letter-spacing:.01em;margin-bottom:14px;
  padding-left:12px;position:relative;
}
.side-title::before{content:"";position:absolute;left:0;top:.35em;bottom:.35em;width:4px;border-radius:2px;background:var(--c-primary);}
.side-list li + li{border-top:1px solid var(--line);}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:15px;color:var(--t-sub);
}
.side-list a:hover{color:var(--c-primary);padding-left:4px;}
.side-list a i{font-size:12px;color:#C4CDDA;}
.side-list a.active{color:var(--c-primary);font-weight:600;}
.signup-card{
  background:linear-gradient(180deg,#FFFFFF 0%,#F5F9FF 100%);
  border:1px solid var(--c-primary-border);border-top:4px solid var(--c-primary);
}
.signup-card p{font-size:14px;color:var(--t-sub);margin:8px 0 16px;line-height:1.7;}
.countdown-row{display:flex;gap:10px;margin-bottom:16px;}
.count-chip{
  flex:1;background:#fff;border:1px solid var(--bd);border-radius:10px;padding:8px 0;text-align:center;
}
.count-chip b{display:block;font-size:18px;color:var(--c-primary);line-height:1.2;}
.count-chip span{font-size:12px;color:var(--t-weak);}

/* ---------- related ---------- */
.section{padding:var(--sp-block) 0 0;}
.section-alt{background:var(--bg-alt);margin-top:var(--sp-block);padding:var(--sp-block) 0;border-top:1px solid var(--bd);border-bottom:1px solid var(--bd);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:30px;font-weight:700;letter-spacing:.01em;line-height:1.3;}
.section-head p{margin-top:8px;font-size:15px;color:var(--t-sub);}
.more-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.more-link i{font-size:12px;transition:transform .18s ease-out;}
.more-link:hover i{transform:translateX(3px);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.card-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt);}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card-badge{
  position:absolute;top:12px;left:12px;height:26px;padding:0 12px;border-radius:999px;
  background:#fff;color:var(--c-primary);font-size:12px;font-weight:600;display:inline-flex;align-items:center;
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;font-weight:600;line-height:1.45;}
.card-body h3 a{color:var(--t-main);}
.card-body h3 a:hover{color:var(--c-primary);}
.card-body p{font-size:14px;color:var(--t-sub);line-height:1.65;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t-weak);padding-top:8px;}
.card-foot i{transition:transform .18s ease-out;color:var(--c-primary);}
.card:hover .card-foot i{transform:translateX(3px);}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:var(--sp-block);
  background:linear-gradient(135deg,#1F5AA8 0%,#16407A 100%);
  border-radius:18px;padding:44px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;color:#fff;box-shadow:var(--sh-2);
}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.82);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex:none;}
.cta-band .btn-secondary{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);color:#fff;}
.cta-band .btn-secondary:hover{background:rgba(255,255,255,.2);color:#fff;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-dark);color:rgba(255,255,255,.78);margin-top:var(--sp-block);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand .brand-name{font-size:17px;font-weight:700;color:#fff;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.75);}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-meta{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.75);}
.footer-meta i{width:16px;color:var(--c-primary-border);margin-right:6px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:14px;
  background:#fff;color:var(--c-primary);border:1px solid var(--c-primary-border);
  box-shadow:var(--sh-1);display:grid;place-items:center;opacity:0;visibility:hidden;
  transition:opacity .2s ease-out,visibility .2s ease-out,transform .2s ease-out;z-index:70;
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-shell{padding:34px 32px 30px;}
  .article-title{font-size:34px;}
}
@media (max-width:1023px){
  :root{--sp-block:72px;}
  .nav-toggle{display:grid;}
  .header-cta{display:none;}
  .nav-links{
    position:fixed;top:72px;left:0;right:0;display:none;flex-direction:column;gap:4px;
    background:#fff;border-bottom:1px solid var(--bd);box-shadow:var(--sh-1);
    padding:14px 20px 22px;max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .nav-links.open{display:flex;}
  .nav-links > li{width:100%;}
  .nav-links > li > a{display:flex;height:52px;padding:0 14px;border-radius:12px;font-size:16px;}
  .nav-links > li > a.active::after{display:none;}
  .nav-links > li > a.active{background:var(--c-primary-light);}
  .nav-cta-mobile{display:block;margin-top:10px;}
  .article-layout{grid-template-columns:1fr;gap:28px;}
  .sidebar{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .crumb .current{max-width:60vw;}
}
@media (max-width:767px){
  :root{--sp-block:48px;}
  .container{padding:0 20px;}
  .nav-wrap{height:64px;}
  .nav-links{top:64px;max-height:calc(100vh - 64px);}
  .brand-name{font-size:16px;}
  .brand-sub{display:none;}
  .page-main{padding:28px 0 48px;}
  .article-shell{padding:24px 20px 24px;border-radius:12px;}
  .article-title{font-size:27px;margin:12px 0 14px;}
  .article-content{font-size:15.5px;line-height:1.85;padding-top:20px;}
  .article-content h2{font-size:21px;margin:32px 0 12px;}
  .article-content h3{font-size:18px;}
  .pager{grid-template-columns:1fr;}
  .pager-card.next{text-align:left;}
  .card-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:24px;}
  .cta-band{border-radius:14px;padding:28px 22px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:16px;}
  .crumb{padding:12px 0;}
}
@media (max-width:480px){
  .article-title{font-size:23px;}
  .article-meta{font-size:13px;gap:6px 14px;}
  .countdown-row{flex-wrap:wrap;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1F5AA8;
  --c-primary-dark:#16407A;
  --c-primary-light:#E8F0FA;
  --c-primary-line:#C6D9F0;
  --c-teal:#2E9E8F;
  --c-teal-light:#E4F4F1;
  --c-accent:#E0762F;
  --c-accent-dark:#C9661F;
  --c-bg:#F5F7FA;
  --c-card:#FFFFFF;
  --c-band:#F0F4F9;
  --c-text:#1B2330;
  --c-text-2:#5A6675;
  --c-text-3:#8A94A3;
  --c-border:#E3E8EF;
  --c-divider:#EDF1F6;
  --c-success:#2E9E5F;
  --c-warning:#D9A22B;
  --c-error:#C7443C;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 2px 4px rgba(27,35,48,.04),0 12px 28px rgba(31,90,168,.07);
  --sh-2:0 6px 14px rgba(27,35,48,.06),0 18px 36px rgba(31,90,168,.10);
  --container:1200px;
  --sp-section:96px;
  --ease:ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .18s var(--ease)}
a:hover{text-decoration:underline}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em;font-weight:700}
h1{font-size:40px}
h2{font-size:30px}
h3{font-size:22px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:3px solid rgba(31,90,168,.28);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sp-section) 0}
.section-alt{background:var(--c-band)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{margin-bottom:14px}
.section-head .lead{color:var(--c-text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--c-teal);background:var(--c-teal-light);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px;
}
.eyebrow.on-dark{color:#BFE9E2;background:rgba(255,255,255,.14)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  text-decoration:none;white-space:nowrap;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 18px rgba(224,118,47,.24)}
.btn-accent:hover{background:var(--c-accent-dark);box-shadow:0 10px 22px rgba(224,118,47,.30)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 18px rgba(31,90,168,.22)}
.btn-primary:hover{background:var(--c-primary-dark)}
.btn-outline{background:#fff;border-color:var(--c-primary-line);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-light)}
.btn-light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.24)}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0 4px;height:auto;text-decoration:underline;text-underline-offset:3px}
.btn-ghost:hover{transform:none;color:var(--c-primary-dark)}
.btn-block{width:100%}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;line-height:1;
  padding:7px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-light);color:var(--c-primary-dark);
}
.badge-teal{background:var(--c-teal-light);color:#1F7A6E}
.badge-accent{background:rgba(224,118,47,.14);color:var(--c-accent-dark)}
.badge-soft{background:#fff;color:var(--c-primary);box-shadow:0 2px 8px rgba(27,35,48,.12)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--c-border);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(31,90,168,.08)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:inherit;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-teal) 100%);
  color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:.01em}
.brand-sub{font-size:11px;letter-spacing:.08em;color:var(--c-text-3);margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 15px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-text-2);
}
.nav-links a:hover{background:var(--c-teal-light);color:var(--c-primary-dark);text-decoration:none}
.nav-links a.active{color:var(--c-primary);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-cta-mobile{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-border);background:#fff;color:var(--c-text);
  align-items:center;justify-content:center;font-size:18px;
}
.nav-toggle:hover{background:var(--c-primary-light);border-color:var(--c-primary-line);color:var(--c-primary)}

/* ---------- 分类头图 ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--c-primary-dark)}
.cat-hero-media{position:absolute;inset:0}
.cat-hero-media img{width:100%;height:100%;object-fit:cover}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(22,64,122,.90) 0%,rgba(31,90,168,.72) 46%,rgba(46,158,143,.42) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:56px 24px 60px;color:#fff}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:#fff;font-weight:600}
.cat-hero h1{max-width:760px;color:#fff;margin-bottom:18px}
.cat-hero .hero-sub{max-width:680px;font-size:17px;color:rgba(255,255,255,.88);margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;margin-bottom:30px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:15px;color:rgba(255,255,255,.92)}
.hero-points i{color:#8FE0D3}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  padding:0 24px 52px;
}
.stat-card{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);
  border-radius:var(--r-card);padding:20px 22px;color:#fff;
  backdrop-filter:blur(2px);
}
.stat-card .stat-label{font-size:13px;color:rgba(255,255,255,.78);margin-bottom:6px;display:block}
.stat-card .stat-value{font-size:17px;font-weight:700;letter-spacing:.01em}

/* ---------- 筛选 ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.chip{
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-border);background:#fff;color:var(--c-text-2);
  font-size:14px;font-weight:500;
  transition:all .18s var(--ease);
}
.chip:hover{border-color:var(--c-primary-line);color:var(--c-primary);background:var(--c-primary-light)}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 6px 14px rgba(31,90,168,.20)}

/* ---------- 赛事卡片 ---------- */
.event-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.event-card{
  display:grid;grid-template-columns:184px 1fr;gap:20px;
  background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:16px;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.event-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-line)}
.event-thumb{position:relative;border-radius:var(--r-img);overflow:hidden;background:var(--c-band);min-height:150px}
.event-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.event-card:hover .event-thumb img{transform:scale(1.04)}
.event-thumb .badge{position:absolute;top:10px;left:10px;z-index:2}
.event-body{display:flex;flex-direction:column;min-width:0}
.event-body h3{font-size:19px;margin-bottom:8px}
.event-desc{
  color:var(--c-text-2);font-size:14px;line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:14px;
}
.event-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--c-text-3);margin-top:auto;margin-bottom:14px}
.event-meta span{display:inline-flex;align-items:center;gap:7px}
.event-meta i{color:var(--c-primary)}
.event-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--c-divider);padding-top:14px}
.event-foot .status{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-success)}
.event-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.event-link i{transition:transform .18s var(--ease)}
.event-link:hover i{transform:translateX(3px)}
.empty-note{
  margin-top:28px;padding:22px 24px;border:1px dashed var(--c-primary-line);
  border-radius:var(--r-card);background:#fff;color:var(--c-text-2);font-size:14px;
  display:flex;gap:12px;align-items:flex-start;
}
.empty-note i{color:var(--c-primary);margin-top:3px}

/* ---------- 流程 ---------- */
.process-band{background:var(--c-primary-dark);color:#fff}
.process-band .section-head h2{color:#fff}
.process-band .section-head .lead{color:rgba(255,255,255,.78)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.process-grid::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.10),rgba(255,255,255,.34),rgba(255,255,255,.10));
}
.step{position:relative;padding-top:0}
.step-num{
  width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
  background:var(--c-primary-dark);border:1px solid rgba(255,255,255,.36);
  color:#fff;font-weight:700;font-size:18px;position:relative;z-index:2;margin-bottom:18px;
  box-shadow:0 0 0 8px var(--c-primary-dark);
}
.step:nth-child(2) .step-num{border-color:#8FE0D3;color:#8FE0D3}
.step h3{font-size:18px;margin-bottom:10px;color:#fff}
.step p{font-size:14px;color:rgba(255,255,255,.76);line-height:1.7}
.step .step-tag{display:inline-block;margin-top:14px;font-size:12px;color:#BFE9E2;background:rgba(255,255,255,.12);border-radius:var(--r-pill);padding:4px 12px}

/* ---------- 图文左右交替 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split + .split{margin-top:72px}
.split.reverse .split-media{order:2}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1)}
.split-body h2{font-size:26px;margin-bottom:16px}
.split-body p{color:var(--c-text-2)}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text-2)}
.check-list i{color:var(--c-teal);margin-top:5px}
.spec-list{margin-top:22px;display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.spec-item{background:var(--c-band);border:1px solid var(--c-border);border-radius:var(--r-img);padding:14px 16px}
.spec-item .k{font-size:13px;color:var(--c-text-3);display:block;margin-bottom:4px}
.spec-item .v{font-size:15px;font-weight:600}

/* ---------- FAQ ---------- */
.faq-list{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.faq-item + .faq-item{border-top:1px solid var(--c-divider)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 24px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);
  transition:background-color .18s var(--ease);
}
.faq-q:hover{background:var(--c-primary-light)}
.faq-q i{color:var(--c-primary);font-size:14px;transition:transform .2s var(--ease);flex-shrink:0}
.faq-item.is-open .faq-q{color:var(--c-primary-dark)}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s var(--ease)}
.faq-item.is-open .faq-a{max-height:320px}
.faq-a p{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--c-primary-dark) 0%,var(--c-primary) 58%,var(--c-teal) 100%);
  border-radius:20px;padding:48px;color:#fff;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;
}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band .cta-desc{color:rgba(255,255,255,.84);font-size:15px;margin-bottom:22px}
.cta-points{display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.9)}
.cta-points i{color:#8FE0D3;margin-top:5px}
.signup-form{
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.26);
  border-radius:var(--r-card);padding:26px;
}
.form-row{display:grid;gap:6px;margin-bottom:16px}
.form-row label{font-size:14px;color:rgba(255,255,255,.9)}
.form-row .req{color:#FFC08A;margin-left:4px}
.form-row input,.form-row select{
  width:100%;height:48px;border-radius:var(--r-btn);
  border:1px solid var(--c-border);background:#F5F7FA;
  padding:0 14px;font:inherit;font-size:15px;color:var(--c-text);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.form-row input::placeholder{color:var(--c-text-3)}
.form-row input:focus,.form-row select:focus{
  outline:none;border-color:var(--c-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(31,90,168,.18);
}
.form-row.error input,.form-row.error select{border-color:var(--c-error)}
.form-hint{font-size:13px;color:rgba(255,255,255,.72);margin-top:12px;line-height:1.7}
.form-err{font-size:13px;color:#FFB4AE;display:none}
.form-row.error .form-err{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-dark);color:#D8E4F4;margin-top:var(--sp-section);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-brand .brand-name{font-size:17px;font-weight:700;color:#fff}
.footer-about{font-size:14px;line-height:1.8;color:#B7CBE8}
.footer-title{font-size:16px;color:#fff;margin:0 0 18px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#C3D5EE;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-links a:hover{color:#fff;transform:translateX(2px);text-decoration:none}
.footer-meta{display:flex;flex-direction:column;gap:12px}
.footer-meta span{display:flex;gap:10px;font-size:14px;color:#C3D5EE;line-height:1.6}
.footer-meta i{color:#8FE0D3;margin-top:5px;flex-shrink:0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.15);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:#A9C1E0;
}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:20px;bottom:26px;width:44px;height:44px;z-index:70;
  border-radius:12px;border:0;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s var(--ease),background-color .18s var(--ease);
}
.back-top.is-show{opacity:1;visibility:visible}
.back-top:hover{background:var(--c-primary-dark)}

/* ---------- 响应式 ---------- */
@media (max-width:1240px){
  h1{font-size:36px}
}
@media (max-width:1023px){
  :root{--sp-section:72px}
  h1{font-size:31px}
  h2{font-size:25px}
  .nav-wrap{height:68px}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .nav-links{
    position:fixed;left:0;right:0;top:68px;bottom:0;
    flex-direction:column;align-items:stretch;gap:4px;margin-left:0;
    background:#fff;padding:16px 20px 32px;overflow-y:auto;
    transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:transform .2s var(--ease),opacity .2s var(--ease),visibility .2s var(--ease);
    border-top:1px solid var(--c-border);
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-links a{height:52px;padding:0 14px;font-size:16px;border-radius:12px}
  .nav-links a.active::after{display:none}
  .nav-cta-mobile{display:block;margin-top:14px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .cat-hero-inner{padding:40px 24px 44px}
  .hero-stats{padding:0 24px 44px}
  .event-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .process-grid::before{display:none}
  .split{grid-template-columns:1fr;gap:28px}
  .split + .split{margin-top:52px}
  .split.reverse .split-media{order:0}
  .cta-band{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sp-section:48px}
  .container{padding:0 20px}
  body{font-size:16px}
  h1{font-size:27px}
  h2{font-size:22px}
  h3{font-size:19px}
  .cat-hero-inner{padding:32px 20px 36px}
  .cat-hero .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-stats{padding:0 20px 36px;gap:12px}
  .stat-card{padding:16px 18px}
  .event-card{grid-template-columns:1fr;gap:14px;padding:14px}
  .event-thumb{min-height:0;aspect-ratio:16/9}
  .event-body h3{font-size:18px}
  .event-meta{gap:6px 14px}
  .process-grid{grid-template-columns:1fr;gap:28px}
  .spec-list{grid-template-columns:1fr}
  .faq-q{padding:14px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .cta-band{padding:26px 20px;border-radius:16px}
  .signup-form{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;gap:8px}
  .back-top{right:14px;bottom:16px}
}
@media (max-width:480px){
  h1{font-size:24px}
  .brand-sub{display:none}
  .hero-points{flex-direction:column;gap:10px}
  .btn{height:48px;font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --primary:#1F5AA8;
  --primary-dark:#16407A;
  --primary-light:#E8F0FA;
  --primary-border:#C6D9F0;
  --teal:#2E9E8F;
  --teal-light:#E4F4F1;
  --accent:#E0762F;
  --accent-dark:#C76424;
  --success:#2E9E5F;
  --warning:#D9A22B;
  --error:#C7443C;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --band:#F0F4F9;
  --text:#1B2330;
  --muted:#5A6675;
  --weak:#8A94A3;
  --border:#E3E8EF;
  --line:#EDF1F6;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-1:0 2px 4px rgba(27,35,48,.04), 0 12px 28px rgba(31,90,168,.07);
  --shadow-2:0 6px 14px rgba(27,35,48,.06), 0 18px 36px rgba(31,90,168,.10);
  --container:1200px;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover;}
a{color:var(--primary);text-decoration:none;text-underline-offset:3px;}
a:hover{color:var(--primary-dark);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em;font-weight:700;}
h1{font-size:40px;}
h2{font-size:30px;}
h3{font-size:22px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(31,90,168,.28);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--space-section) 0;}
.section-tight{padding:64px 0;}
.band{background:var(--band);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{margin-bottom:14px;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;width:6px;height:1.05em;border-radius:3px;background:var(--primary);
}
.section-head p{color:var(--muted);}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--teal);
  background:var(--teal-light);border-radius:var(--r-pill);padding:4px 14px;margin-bottom:14px;
}

/* ---------- 顶部提示条 ---------- */
.topbar{
  background:#fff;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted);
}
.topbar .container{display:flex;align-items:center;justify-content:center;gap:12px;min-height:44px;position:relative;}
.topbar strong{color:var(--primary);font-weight:600;}
.topbar-close{
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  width:32px;height:32px;border-radius:8px;color:var(--weak);font-size:18px;line-height:1;
}
.topbar-close:hover{background:var(--primary-light);color:var(--primary);}
.topbar.hidden{display:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:saturate(160%) blur(6px);
  border-bottom:1px solid var(--line);transition:box-shadow .2s ease-out,height .2s ease-out;
}
.site-header.scrolled{box-shadow:0 6px 18px rgba(27,35,48,.06);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.site-header.scrolled .nav-wrap{height:64px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-weight:700;font-size:19px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(31,90,168,.24);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand-sub{font-size:9.5px;letter-spacing:.08em;color:var(--weak);margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:8px;}
.nav-links li{position:relative;}
.nav-links a{
  display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:var(--r-pill);
  font-size:15px;color:var(--muted);transition:background .18s ease-out,color .18s ease-out;position:relative;
}
.nav-links a:hover{background:var(--teal-light);color:var(--primary-dark);}
.nav-links a.active{color:var(--primary);font-weight:600;background:var(--primary-light);}
.nav-links a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;border-radius:2px;background:var(--primary);
}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-cta-mobile{display:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;color:var(--primary);
  align-items:center;justify-content:center;font-size:19px;border:1px solid var(--primary-border);
}
.nav-toggle:hover{background:var(--primary-light);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(31,90,168,.20);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px rgba(31,90,168,.26);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(31,90,168,.20);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(224,118,47,.22);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--primary);border:1px solid var(--primary-border);}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary);}
.btn-ghost{
  color:var(--primary);background:transparent;padding:0 4px;height:auto;border-radius:0;
  border-bottom:2px solid rgba(31,90,168,.28);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-dark);}
.btn-block{width:100%;}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 内页横幅 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--primary-dark);}
.page-hero .hero-bg{position:absolute;inset:0;}
.page-hero .hero-bg img{width:100%;height:100%;border-radius:0;object-fit:cover;}
.page-hero .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.88) 42%,rgba(232,240,250,.62) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:20px;}
.crumb a{color:var(--weak);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:var(--border);}
.crumb .current{color:var(--primary);font-weight:600;}
.hero-inner{max-width:800px;}
.page-hero h1{margin-bottom:18px;}
.page-hero .lede{font-size:17px;color:var(--muted);max-width:680px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:var(--r-pill);background:#fff;color:var(--primary);
  border:1px solid var(--primary-border);
}
.tag-teal{background:var(--teal-light);color:#1F7D71;border-color:transparent;}

/* ---------- 数据条 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.stat-num{font-size:30px;font-weight:700;color:var(--primary);line-height:1.2;margin-bottom:8px;letter-spacing:.01em;}
.stat-num small{font-size:15px;font-weight:600;color:var(--teal);margin-left:4px;}
.stat-label{font-size:15px;font-weight:600;margin-bottom:6px;}
.stat-desc{font-size:13.5px;color:var(--weak);line-height:1.65;}

/* ---------- 主布局：锚点目录 + 纵向内容 ---------- */
.layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start;}
.toc{position:sticky;top:104px;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1);}
.toc-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--weak);margin-bottom:14px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;padding:11px 14px;border-radius:9px;font-size:14.5px;color:var(--muted);
  border-left:3px solid transparent;transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.toc-list a:hover{background:var(--primary-light);color:var(--primary-dark);}
.toc-list a.active{
  background:var(--primary-light);color:var(--primary-dark);font-weight:600;border-left-color:var(--primary);
}
.toc-cta{margin-top:20px;padding-top:20px;border-top:1px solid var(--line);}
.toc-cta p{font-size:13px;color:var(--weak);margin-bottom:14px;line-height:1.65;}

.block{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:36px;box-shadow:var(--shadow-1);margin-bottom:28px;scroll-margin-top:104px;
}
.block:last-child{margin-bottom:0;}
.block-head{margin-bottom:24px;}
.block-head .eyebrow{margin-bottom:12px;}
.block-head h2{font-size:26px;margin-bottom:12px;padding-left:0;}
.block-head h2::before{display:none;}
.block-head p{color:var(--muted);}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:32px;align-items:center;}
.split.reverse .split-media{order:2;}
.split-media img{width:100%;aspect-ratio:4/3;box-shadow:var(--shadow-1);}
.split-body h3{margin-bottom:10px;}
.split-body p{color:var(--muted);margin-bottom:16px;}
.check-list{display:flex;flex-direction:column;gap:10px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--muted);line-height:1.7;}
.check-list i{color:var(--primary);margin-top:5px;flex:0 0 auto;font-size:14px;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px;}
.step{
  position:relative;background:var(--band);border-radius:var(--r-card);padding:24px 20px;
  border:1px solid var(--line);
}
.step-num{
  width:36px;height:36px;border-radius:50%;background:#fff;color:var(--primary);font-weight:700;
  display:flex;align-items:center;justify-content:center;font-size:15px;margin-bottom:14px;
  border:1px solid var(--primary-border);
}
.step h4{font-size:16px;margin-bottom:8px;font-weight:600;}
.step p{font-size:13.5px;color:var(--muted);line-height:1.7;}
.step::after{
  content:"";position:absolute;top:42px;right:-12px;width:20px;height:1px;background:var(--primary-border);
}
.steps .step:last-child::after{display:none;}

/* 档位对比 */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.plan{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--shadow-1);transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.plan:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.plan.featured{border:2px solid var(--primary);transform:translateY(-12px);box-shadow:var(--shadow-2);}
.plan.featured:hover{transform:translateY(-14px);}
.plan-badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:4px 14px;border-radius:var(--r-pill);white-space:nowrap;
}
.plan h3{font-size:19px;margin-bottom:6px;}
.plan .plan-sub{font-size:13.5px;color:var(--weak);margin-bottom:18px;}
.plan .plan-price{font-size:32px;font-weight:700;color:var(--primary);line-height:1.1;margin-bottom:4px;}
.plan .plan-price small{font-size:14px;font-weight:500;color:var(--weak);margin-left:6px;}
.plan .plan-note{font-size:13px;color:var(--weak);margin-bottom:20px;}
.plan .check-list{margin-bottom:22px;}
.plan .check-list li{font-size:14px;}

/* FAQ */
.faq-list{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 24px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
  transition:background .18s ease-out,color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--primary-light);color:var(--primary-dark);}
.faq-icon{
  width:28px;height:28px;border-radius:50%;background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:12px;flex:0 0 auto;
  transition:transform .2s ease-out,background .2s ease-out;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--primary);color:#fff;}
.faq-answer{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--muted);}

/* CTA / 表单 */
.cta-band{
  background:linear-gradient(120deg,var(--primary-dark) 0%,var(--primary) 58%,#2568BE 100%);
  border-radius:20px;padding:48px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);
  gap:40px;align-items:center;color:#fff;box-shadow:0 20px 44px rgba(22,64,122,.24);
}
.cta-band h2{color:#fff;margin-bottom:14px;font-size:28px;}
.cta-band p{color:rgba(255,255,255,.86);max-width:460px;;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cta-points span{
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
}
.form-card{background:#fff;border-radius:var(--r-card);padding:28px;color:var(--text);box-shadow:0 18px 40px rgba(15,40,80,.20);}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-hint{font-size:13.5px;color:var(--weak);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px;}
.req{color:var(--accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;border-radius:var(--r-btn);border:1px solid var(--border);background:var(--bg);
  padding:0 14px;font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.field textarea{height:auto;min-height:88px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,90,168,.16);
}
.field .err-msg{display:none;font-size:13px;color:var(--error);margin-top:6px;}
.field.has-error input,.field.has-error select{border-color:var(--error);}
.field.has-error .err-msg{display:block;}
.form-note{font-size:12.5px;color:var(--weak);margin-top:14px;line-height:1.65;}
.form-ok{
  display:none;margin-top:14px;font-size:14px;color:var(--success);background:#EAF7F0;
  border-radius:10px;padding:10px 14px;
}
.form-ok.show{display:block;}

/* 页脚 */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);box-shadow:none;}
.footer-brand .brand-name{font-size:17px;font-weight:700;color:#fff;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:340px;}
.footer-title{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.78);transition:color .18s ease-out,transform .18s ease-out;display:inline-block;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-meta{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.78);}
.footer-meta i{color:var(--teal);width:18px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.16);padding:22px 0;font-size:13px;color:rgba(255,255,255,.62);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 24px rgba(31,90,168,.30);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--primary-dark);color:#fff;}

/* 响应式 */
@media (max-width:1279px){
  :root{--container:1140px;}
}
@media (max-width:1023px){
  :root{--space-section:72px;}
  h1{font-size:32px;}
  h2{font-size:25px;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;top:72px;left:0;right:0;bottom:0;background:#fff;flex-direction:column;
    align-items:stretch;gap:0;padding:16px 20px 32px;overflow-y:auto;
    transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
    border-top:1px solid var(--line);
  }
  .nav-links.open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-links li{width:100%;border-bottom:1px solid var(--line);}
  .nav-links a{display:flex;height:52px;padding:0 8px;border-radius:0;font-size:16px;}
  .nav-links a.active{background:transparent;}
  .nav-links a.active::after{left:8px;right:auto;width:22px;bottom:8px;}
  .nav-cta-mobile{display:block;border-bottom:0;margin-top:20px;}
  .header-cta{display:none;}
  .layout{grid-template-columns:1fr;gap:28px;}
  .toc{position:static;padding:18px;}
  .toc-list{flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:4px;}
  .toc-list a{white-space:nowrap;border-left:0;border-bottom:3px solid transparent;border-radius:var(--r-pill);background:var(--band);}
  .toc-list a.active{border-left:0;border-bottom-color:var(--primary);}
  .toc-cta{border-top:0;padding-top:16px;margin-top:16px;}
  .toc-cta .btn{width:100%;}
  .split{grid-template-columns:1fr;gap:24px;}
  .split.reverse .split-media{order:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .plans{grid-template-columns:1fr;}
  .plan.featured{transform:none;order:-1;}
  .plan.featured:hover{transform:translateY(-2px);}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .site-footer{margin-top:72px;}
}
@media (max-width:767px){
  :root{--space-section:56px;}
  .container{padding:0 20px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  h3{font-size:19px;}
  .page-hero .container{padding-top:44px;padding-bottom:44px;}
  .page-hero .lede{font-size:15.5px;}
  .block{padding:24px 20px;border-radius:var(--r-card);}
  .block-head h2{font-size:22px;}
  .hero-actions .btn{flex:1 1 100%;}
  .stat-grid{gap:16px;}
  .stat-card{padding:20px;}
  .stat-num{font-size:26px;}
  .cta-band{padding:28px 22px;border-radius:16px;}
  .cta-band h2{font-size:22px;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{justify-content:flex-start;}
  .to-top{right:16px;bottom:18px;}
  .faq-item summary{padding:14px 18px;font-size:15px;}
  .faq-answer{padding:0 18px 18px;}
}
@media (max-width:520px){
  h1{font-size:25px;}
  .steps{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;}
  .brand-sub{display:none;}
  .topbar .container{font-size:13px;padding-right:52px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}