/* roulang page: index */
:root{
  --ink-900:#0B0C0E;
  --ink-800:#14161A;
  --ink-700:#1D2026;
  --paper:#F6F5F2;
  --paper-2:#FFFFFF;
  --text-1:#16181D;
  --text-2:#5A5F6B;
  --text-inv:#F2F3F5;
  --text-inv-2:#9AA0AB;
  --line:rgba(11,12,14,0.10);
  --line-inv:rgba(255,255,255,0.08);
  --primary:#E4322B;
  --primary-600:#C21F1A;
  --primary-soft:rgba(228,50,43,0.12);
  --accent:#E9B44C;
  --accent-soft:rgba(233,180,76,0.14);
  --neon:#2FE3C6;
  --ok:#2E9E6B;
  --warn:#C9A227;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num:"Barlow Condensed","DIN Alternate",Impact,"Arial Narrow",sans-serif;
  --ease:cubic-bezier(0.2,0.7,0.2,1);

  --bs-primary:#E4322B;
  --bs-body-bg:#F6F5F2;
  --bs-body-color:#16181D;
  --bs-border-color:rgba(11,12,14,0.10);
  --bs-link-color:#16181D;
  --bs-link-hover-color:#E4322B;
  --bs-font-sans-serif:var(--font-sans);
  --bs-border-radius:4px;
  --bs-border-radius-sm:3px;
  --bs-border-radius-lg:4px;
  --bs-emphasis-color:#0B0C0E;
  --bs-gutter-x:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--paper);
  text-align:left;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:0;box-shadow:0 0 0 3px rgba(228,50,43,0.22);border-radius:3px}

.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 通用排版 ---------- */
.eyebrow{
  font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--primary);text-transform:none;margin-bottom:14px;
}
.eyebrow.is-accent{color:var(--accent)}
.eyebrow.is-inv{color:var(--accent)}
.h1{font-size:56px;font-weight:800;line-height:1.15;letter-spacing:-.02em}
.h2{font-size:34px;font-weight:700;line-height:1.25;letter-spacing:-.01em}
.h3{font-size:22px;font-weight:600;line-height:1.4}
.lead{font-size:17px;color:var(--text-2);line-height:1.85}
.section{padding:96px 0}
.section-sm{padding:56px 0}
.section-head{margin-bottom:48px;max-width:760px}
.section-head .h2{margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--ink-900);
  border-bottom:1px solid var(--line-inv);
  transition:background .18s var(--ease),box-shadow .18s var(--ease);
}
.site-header.is-scrolled{background:rgba(11,12,14,.92);backdrop-filter:blur(8px);box-shadow:0 8px 24px rgba(0,0,0,.28)}
.site-header .navbar{padding:0;flex-wrap:nowrap}
.site-header .container{display:flex;align-items:center;height:64px;gap:16px}
.navbar-brand{
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--text-inv);
  padding:0;margin:0;white-space:nowrap;
}
.navbar-brand span{color:var(--primary)}
.navbar-brand:hover{color:var(--text-inv)}
.site-nav{display:flex;align-items:center;margin:0 auto}
.site-nav .nav-link{
  position:relative;display:block;
  font-size:15px;font-weight:500;color:var(--text-inv-2);
  padding:10px 16px;transition:color .18s var(--ease);
}
.site-nav .nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:1px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.site-nav .nav-link:hover{color:var(--text-inv)}
.site-nav .nav-link:hover::after{transform:scaleX(1)}
.site-nav .nav-link.active{color:var(--text-inv)}
.site-nav .nav-link.active::after{
  height:2px;background:var(--neon);transform:scaleX(1);
  box-shadow:0 0 12px rgba(47,227,198,.55);
}
.site-nav .nav-link.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;background:var(--primary);
}
.navbar-toggler{
  display:none;border:0;background:transparent;padding:8px;margin-left:auto;
  flex-direction:column;gap:5px;
}
.navbar-toggler span{display:block;width:22px;height:2px;background:#fff}
.navbar-toggler:focus{box-shadow:none}
.header-cta{
  display:inline-flex;align-items:center;white-space:nowrap;
}

/* 移动端抽屉 */
.mobile-nav{background:var(--ink-900);color:var(--text-inv);width:300px}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line-inv);padding:18px 22px}
.mobile-nav .offcanvas-title{font-size:17px;font-weight:800;color:var(--text-inv)}
.mobile-nav .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.mobile-nav .offcanvas-body{padding:16px 0}
.mobile-nav .m-link{
  display:block;padding:18px 22px;font-size:18px;font-weight:500;
  color:var(--text-inv-2);border-left:3px solid transparent;
}
.mobile-nav .m-link:hover{color:var(--text-inv)}
.mobile-nav .m-link.active{color:var(--text-inv);border-left-color:var(--neon);background:rgba(255,255,255,.04)}
.mobile-nav .m-cta{margin:20px 22px 0}

/* ---------- 按钮 ---------- */
.btn{
  --bs-btn-padding-y:11px;--bs-btn-padding-x:22px;--bs-btn-font-size:15px;
  --bs-btn-border-radius:3px;--bs-btn-font-weight:600;
  transition:transform .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
}
.btn-primary{
  --bs-btn-bg:var(--primary);--bs-btn-border-color:var(--primary);
  --bs-btn-color:#fff;--bs-btn-hover-color:#fff;
  --bs-btn-hover-bg:var(--primary-600);--bs-btn-hover-border-color:var(--primary-600);
  --bs-btn-active-bg:var(--primary-600);--bs-btn-active-border-color:var(--primary-600);
  --bs-btn-disabled-bg:var(--primary);--bs-btn-disabled-border-color:var(--primary);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(228,50,43,.28)}
.btn-lg{--bs-btn-padding-y:14px;--bs-btn-padding-x:28px;--bs-btn-font-size:16px}
.btn-sm{--bs-btn-padding-y:8px;--bs-btn-padding-x:16px;--bs-btn-font-size:14px}
.btn-outline-inv{
  --bs-btn-color:var(--text-inv);--bs-btn-border-color:rgba(255,255,255,.24);
  --bs-btn-hover-bg:rgba(255,255,255,.08);--bs-btn-hover-color:#fff;
  --bs-btn-hover-border-color:rgba(255,255,255,.42);
  --bs-btn-active-bg:rgba(255,255,255,.12);--bs-btn-active-color:#fff;
  background:transparent;
}
.btn-outline-line{
  --bs-btn-color:var(--text-1);--bs-btn-border-color:var(--line);
  --bs-btn-hover-bg:var(--primary-soft);--bs-btn-hover-color:var(--primary);
  --bs-btn-hover-border-color:var(--primary);
  background:transparent;
}
.btn-ghost{
  background:transparent;border:0;color:var(--text-1);font-weight:600;
  display:inline-flex;align-items:center;gap:8px;padding:11px 0;
}
.btn-ghost .arw{transition:transform .18s var(--ease)}
.btn-ghost:hover{color:var(--primary)}
.btn-ghost:hover .arw{transform:translateX(4px)}
.btn-ghost-inv{background:transparent;border:1px solid rgba(255,255,255,.24);color:var(--text-inv)}
.btn-ghost-inv:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.42);transform:translateY(-1px)}

/* ---------- 倒计时条 ---------- */
.countdown-bar{
  background:var(--ink-800);
  border-bottom:1px solid rgba(228,50,43,.4);
}
.countdown-inner{
  display:flex;align-items:center;gap:24px;min-height:56px;padding-top:10px;padding-bottom:10px;
}
.cd-label{font-size:14px;font-weight:600;color:var(--text-inv);white-space:nowrap}
.cd-label i{display:inline-block;width:6px;height:6px;background:var(--primary);margin-right:10px;vertical-align:middle}
.cd-timer{display:flex;gap:18px;align-items:center;margin:0 auto}
.cd-unit{display:flex;flex-direction:column;align-items:center;min-width:44px}
.cd-num{
  font-family:var(--font-num);font-size:28px;font-weight:700;line-height:1;
  color:var(--neon);text-shadow:0 0 10px rgba(47,227,198,.45);
  font-variant-numeric:tabular-nums;
}
.cd-cap{font-size:11px;color:var(--text-inv-2);margin-top:4px;letter-spacing:.08em}
.cd-compact{display:none;font-size:14px;color:var(--text-inv-2);margin:0 auto}
.cd-compact b{font-family:var(--font-num);font-size:16px;color:var(--neon)}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink-900);color:var(--text-inv);overflow:hidden;min-height:520px;display:flex;align-items:center}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,12,14,.96) 0%,rgba(11,12,14,.86) 42%,rgba(11,12,14,.58) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:72px;padding-bottom:72px;width:100%}
.hero .eyebrow{color:var(--accent)}
.hero h1{
  font-size:52px;font-weight:800;line-height:1.15;letter-spacing:-.02em;
  color:var(--text-inv);margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:19px;line-height:1.7;color:var(--text-inv-2);max-width:560px;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}
.hero-facts{display:flex;gap:36px;flex-wrap:wrap;border-top:1px solid var(--line-inv);padding-top:26px}
.hero-facts li{display:flex;flex-direction:column;gap:4px}
.hero-facts .num{font-size:30px;font-weight:700;color:var(--accent);line-height:1}
.hero-facts .cap{font-size:12px;color:var(--text-inv-2);letter-spacing:.04em}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line-inv);border-radius:4px;
}
.hero-figure .fig-cap{
  margin-top:12px;font-size:12px;color:var(--text-inv-2);letter-spacing:.04em;
}

/* ---------- 卖点区 ---------- */
.feature-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;grid-auto-rows:minmax(180px,auto);gap:24px}
.feature{
  background:var(--paper-2);border:1px solid var(--line);border-radius:4px;
  padding:28px;border-top:1px solid var(--line);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.feature:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(11,12,14,.08);border-color:var(--primary)}
.feature .no{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--accent);line-height:1;letter-spacing:.04em}
.feature h3{font-size:19px;font-weight:600;margin:14px 0 10px}
.feature p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.feature-lg{grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between}
.feature-lg h3{font-size:24px;margin:16px 0 14px}
.feature-lg p{font-size:16px}
.feature-lg .fig{
  margin-top:24px;aspect-ratio:16/9;border-radius:3px;overflow:hidden;
  background:linear-gradient(135deg,var(--primary) 0%,var(--ink-900) 100%);
}
.feature-lg .fig img{width:100%;height:100%;object-fit:cover}
.feature-wide{grid-column:span 2}

/* ---------- 图墙 ---------- */
.wall-grid{
  display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:180px;gap:16px;
}
.wall-item{
  position:relative;overflow:hidden;border-radius:4px;border:1px solid var(--line);
  display:block;background:var(--ink-800);
}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.wall-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,12,14,.15) 0%,rgba(11,12,14,.55) 55%,rgba(11,12,14,.86) 100%);
  transition:background .24s var(--ease);
}
.wall-item:hover img{transform:scale(1.02)}
.wall-item:hover::after{background:linear-gradient(180deg,rgba(11,12,14,.23) 0%,rgba(11,12,14,.63) 55%,rgba(11,12,14,.92) 100%)}
.wall-item .wi-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:18px 20px}
.wall-item .wi-no{font-family:var(--font-num);font-size:13px;color:var(--accent);letter-spacing:.12em;display:block;margin-bottom:6px}
.wall-item h3{font-size:17px;font-weight:600;color:#fff;line-height:1.4}
.wall-item.w-lg{grid-column:span 6;grid-row:span 2}
.wall-item.w-6{grid-column:span 6}
.wall-item.w-3{grid-column:span 3}

/* ---------- 资讯列表 ---------- */
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--paper-2);border:1px solid var(--line);border-radius:4px;overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(11,12,14,.08);border-color:var(--primary)}
.news-cover{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(135deg,var(--primary) 0%,var(--ink-900) 100%);
}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.03)}
.badge-cat{
  position:absolute;left:12px;top:12px;z-index:2;
  display:inline-block;font-size:12px;letter-spacing:.06em;line-height:1;
  padding:5px 10px;border-radius:2px;
  background:var(--accent-soft);color:#8A6413;backdrop-filter:blur(4px);
}
.badge-cat.is-dark{background:rgba(11,12,14,.6);color:var(--accent);border:1px solid rgba(233,180,76,.4)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-body h3{
  font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;color:var(--text-2);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-2);border-top:1px solid var(--line);padding-top:14px;
}
.news-meta .go{display:inline-flex;align-items:center;gap:6px;color:var(--text-1);font-weight:600}
.news-meta .go .arw{transition:transform .18s var(--ease)}
.news-card:hover .news-meta .go{color:var(--primary)}
.news-card:hover .news-meta .go .arw{transform:translateX(4px)}
.news-card-lg .news-cover{aspect-ratio:16/10}
.news-card-lg .news-body{padding:26px 28px 28px}
.news-card-lg .news-body h3{font-size:24px;-webkit-line-clamp:3}
.news-card-lg .news-body p{font-size:15px;-webkit-line-clamp:3}
.news-subgrid{display:grid;grid-template-columns:1fr 1fr;gap:24px;height:100%}
.news-subgrid .news-body h3{font-size:16px}
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:4px;background:var(--paper-2);
}
.empty-state svg{width:32px;height:32px;color:var(--text-2)}
.empty-state p{font-size:15px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:0.8fr 1.2fr;gap:56px;align-items:start}
.faq-aside{position:sticky;top:110px}
.faq-aside .h2{margin-bottom:14px}
.faq-aside p{color:var(--text-2);font-size:15px}
.faq-accordion{
  --bs-accordion-bg:transparent;
  --bs-accordion-border-width:0;
  --bs-accordion-btn-padding-x:0;
  --bs-accordion-btn-padding-y:18px;
  --bs-accordion-btn-color:var(--text-1);
  --bs-accordion-btn-bg:transparent;
  --bs-accordion-active-bg:transparent;
  --bs-accordion-active-color:var(--primary);
  --bs-accordion-body-padding-x:0;
  --bs-accordion-body-padding-y:0;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-inner-border-radius:0;
}
.faq-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-accordion .accordion-button{
  font-size:17px;font-weight:600;line-height:1.5;
  transition:color .18s var(--ease),padding-left .18s var(--ease),border-color .18s var(--ease);
  border-left:3px solid transparent;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--primary);border-left-color:var(--primary);padding-left:16px;
  background:transparent;box-shadow:none;
}
.faq-accordion .accordion-button::after{
  width:14px;height:14px;background-size:14px;
  transition:transform .24s var(--ease);
  filter:grayscale(1) opacity(.6);
}
.faq-accordion .accordion-button:not(.collapsed)::after{filter:none;opacity:.9}
.faq-accordion .accordion-body{
  font-size:15px;line-height:1.8;color:var(--text-2);padding:0 0 20px;
}
.faq-accordion .accordion-button:not(.collapsed) + .accordion-collapse .accordion-body{padding-left:16px}

/* ---------- 报名 CTA ---------- */
.cta-band{
  background:var(--ink-900);color:var(--text-inv);position:relative;overflow:hidden;
  padding:88px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.22;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(95deg,rgba(11,12,14,.96) 0%,rgba(11,12,14,.9) 50%,rgba(11,12,14,.82) 100%);
}
.cta-band .container{position:relative;z-index:2}
.cta-band .eyebrow{color:var(--accent)}
.cta-band h2{font-size:34px;font-weight:700;line-height:1.25;color:var(--text-inv);margin-bottom:18px}
.cta-band .cta-desc{color:var(--text-inv-2);font-size:16px;margin-bottom:26px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:14.5px;color:var(--text-inv);line-height:1.7;margin-bottom:14px;
}
.check-list .tick{
  flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:2px;
  background:var(--primary-soft);border:1px solid rgba(228,50,43,.45);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:12px;line-height:1;
}
.dark-form{
  background:rgba(255,255,255,.03);border:1px solid var(--line-inv);
  border-radius:4px;padding:28px;
}
.dark-form .form-label{font-size:13px;color:var(--text-inv-2);margin-bottom:8px;letter-spacing:.04em}
.dark-form .form-control,.dark-form .form-select{
  height:48px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);border-radius:3px;
  color:var(--text-inv);font-size:15px;padding:0 14px;
}
.dark-form .form-control::placeholder{color:rgba(154,160,171,.75)}
.dark-form .form-control:focus,.dark-form .form-select:focus{
  background:rgba(255,255,255,.08);border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(228,50,43,.18);color:var(--text-inv);
}
.dark-form .form-select option{color:#16181D}
.form-note{font-size:12px;color:var(--text-inv-2);margin-top:14px;line-height:1.7}
.form-ok{
  margin-top:16px;font-size:14px;color:var(--text-inv);
  border-left:3px solid var(--primary);padding:10px 0 10px 14px;
  background:rgba(228,50,43,.08);display:none;
}
.form-ok.is-on{display:block}
.form-err{font-size:12px;color:var(--primary);margin-top:6px;display:none}
.form-err.is-on{display:block}
.field-invalid .form-control{border-color:var(--primary)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:var(--text-inv-2);border-top:1px solid var(--line-inv);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-logo{font-size:19px;font-weight:800;color:var(--text-inv);margin-bottom:16px}
.footer-logo span{color:var(--primary)}
.site-footer p{font-size:14px;line-height:1.8}
.footer-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.footer-tags span{
  font-size:12px;letter-spacing:.06em;padding:4px 10px;
  border:1px solid var(--line-inv);border-radius:2px;color:var(--text-inv-2);
}
.site-footer h3{font-size:15px;font-weight:600;color:var(--text-inv);margin-bottom:18px}
.site-footer ul li{margin-bottom:12px}
.site-footer ul a{font-size:14px;color:var(--text-inv-2);transition:color .18s var(--ease)}
.site-footer ul a:hover{color:var(--primary)}
.footer-contact p{margin-bottom:10px}
.qr-box{
  width:120px;height:120px;margin-top:18px;border:1px solid var(--line-inv);border-radius:3px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--text-inv-2);line-height:1.6;background:rgba(255,255,255,.03);
  padding:10px;
}
.footer-bottom{
  border-top:1px solid var(--line-inv);padding:24px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-inv-2)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-inview{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .h2{font-size:30px}
  .hero h1{font-size:44px}
  .feature-grid{grid-template-columns:1.15fr 1fr 1fr;gap:20px}
  .faq-wrap{gap:40px}
}
@media (max-width:991.98px){
  .site-nav,.header-cta{display:none!important}
  .navbar-toggler{display:flex}
  .section{padding:72px 0}
  .hero{min-height:460px}
  .hero h1{font-size:38px}
  .hero-sub{font-size:17px}
  .hero-inner{padding-top:56px;padding-bottom:56px}
  .hero-figure{margin-top:40px}
  .feature-grid{grid-template-columns:1fr 1fr}
  .feature-lg{grid-row:auto;grid-column:span 2}
  .feature-wide{grid-column:span 2}
  .wall-grid{grid-auto-rows:170px}
  .wall-item.w-lg{grid-column:span 6;grid-row:span 2}
  .wall-item.w-6{grid-column:span 6}
  .wall-item.w-3{grid-column:span 6}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .news-subgrid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .site-header .container{height:56px}
  .navbar-brand{font-size:17px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .h1,.hero h1{font-size:31px}
  .h2{font-size:24px}
  .cta-band h2{font-size:25px}
  .cd-timer{display:none}
  .cd-compact{display:block}
  .countdown-inner{gap:12px;justify-content:space-between}
  .cd-label{font-size:13px;white-space:normal}
  .hero{min-height:420px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px;margin-bottom:24px}
  .hero-cta{gap:12px;margin-bottom:32px}
  .hero-cta .btn{flex:1 1 100%;justify-content:center;min-height:44px}
  .hero-facts{gap:22px}
  .hero-facts .num{font-size:24px}
  .feature-grid{grid-template-columns:1fr;gap:16px}
  .feature-lg{grid-column:span 1}
  .feature-wide{grid-column:span 1}
  .wall-grid{grid-template-columns:1fr 1fr;grid-auto-rows:140px;gap:12px}
  .wall-item.w-lg,.wall-item.w-6,.wall-item.w-3{grid-column:span 1;grid-row:span 1}
  .wall-item.w-lg{grid-column:span 2}
  .wall-item .wi-body{padding:12px 14px}
  .wall-item h3{font-size:14px}
  .news-subgrid{grid-template-columns:1fr;gap:16px}
  .news-card-lg .news-body h3{font-size:19px}
  .faq-accordion .accordion-button{font-size:16px;padding:16px 0}
  .cta-band{padding:56px 0}
  .dark-form{padding:20px;margin-top:28px}
  .dark-form .btn{width:100%;min-height:44px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:359.98px){
  .hero h1{font-size:26px}
  .h2{font-size:22px}
  .cd-num{font-size:22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
  .news-card:hover,.feature:hover,.btn:hover{transform:none}
  .news-card:hover .news-cover img,.wall-item:hover img{transform:none}
}

/* roulang page: category1 */
:root{
  --ink-900:#0B0C0E;
  --ink-800:#14161A;
  --ink-700:#1D2026;
  --paper:#F6F5F2;
  --paper-2:#FFFFFF;
  --text-1:#16181D;
  --text-2:#5A5F6B;
  --text-inv:#F2F3F5;
  --text-inv-2:#9AA0AB;
  --line:rgba(11,12,14,0.10);
  --line-inv:rgba(255,255,255,0.08);
  --primary:#E4322B;
  --primary-600:#C21F1A;
  --primary-soft:rgba(228,50,43,0.12);
  --accent:#E9B44C;
  --accent-soft:rgba(233,180,76,0.14);
  --neon:#2FE3C6;
  --ok:#2E9E6B;
  --warn:#C9A227;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num:"Oswald","Barlow Condensed","DIN Alternate",Impact,"Arial Narrow",sans-serif;
  --radius-card:4px;
  --radius-btn:3px;
  --ease:cubic-bezier(0.2,0.7,0.2,1);
  --bs-body-bg:var(--paper);
  --bs-body-color:var(--text-1);
  --bs-border-color:var(--line);
  --bs-primary:var(--primary);
  --bs-link-color:var(--primary);
  --bs-link-hover-color:var(--primary-600);
  --bs-font-sans-serif:var(--font-sans);
  --bs-border-radius:4px;
  --bs-border-radius-sm:3px;
  --bs-border-radius-lg:4px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--paper);
  text-align:left;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color 180ms var(--ease);}
a:hover{color:var(--primary-600);}
button,input,select,textarea{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text-1);}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(228,50,43,0.20);border-radius:3px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ---------- 顶栏 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:var(--ink-900);
  border-bottom:1px solid var(--line-inv);
  transition:background 240ms var(--ease),backdrop-filter 240ms var(--ease);
}
.site-header.is-scrolled{background:rgba(11,12,14,0.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);}
.site-header .navbar{height:64px;padding:0;}
.site-header .container{display:flex;align-items:center;gap:32px;}
.navbar-brand{
  font-size:20px;font-weight:800;letter-spacing:-0.01em;color:var(--text-inv);
  padding:0;margin:0;white-space:nowrap;
}
.navbar-brand span{color:var(--primary);}
.navbar-brand:hover{color:var(--text-inv);}
.site-nav{flex-direction:row;gap:6px;margin:0;margin-left:8px;}
.site-nav .nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-inv-2);
  padding:22px 12px;line-height:1;transition:color 180ms var(--ease);
}
.site-nav .nav-link:hover{color:var(--text-inv);}
.site-nav .nav-link:hover::after{
  content:"";position:absolute;left:12px;right:12px;bottom:16px;height:1px;background:var(--primary);
}
.site-nav .nav-link.active{color:var(--text-inv);}
.site-nav .nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:14px;height:2px;background:var(--neon);
  box-shadow:0 0 12px rgba(47,227,198,0.55);
}
.site-nav .nav-link.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:6px;height:6px;
  background:var(--primary);border-radius:1px;
}
.header-cta{margin-left:auto;}
.navbar-toggler{
  display:none;width:44px;height:44px;border:0;background:transparent;padding:0;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;margin-left:auto;
}
.navbar-toggler span{display:block;width:22px;height:2px;background:#fff;transition:transform 180ms var(--ease);}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(228,50,43,0.20);}

/* ---------- 按钮 ---------- */
.btn{
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;padding:12px 24px;
  transition:all 180ms var(--ease);border:1px solid transparent;line-height:1.2;
}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-600);border-color:var(--primary-600);color:#fff;transform:translateY(-1px);box-shadow:0 8px 24px rgba(228,50,43,0.28);}
.btn-outline-dark-2{background:transparent;border:1px solid var(--text-1);color:var(--text-1);}
.btn-outline-dark-2:hover{background:rgba(228,50,43,0.08);border-color:var(--primary);color:var(--primary);}
.btn-outline-light-2{background:transparent;border:1px solid rgba(255,255,255,0.24);color:var(--text-inv);}
.btn-outline-light-2:hover{background:rgba(255,255,255,0.08);color:#fff;border-color:rgba(255,255,255,0.4);}
.btn-sm{padding:8px 16px;font-size:14px;}
.btn-ghost{background:transparent;color:var(--primary);padding:0;font-weight:600;}
.btn-ghost .arrow{display:inline-block;transition:transform 180ms var(--ease);margin-left:6px;}
.btn-ghost:hover .arrow{transform:translateX(4px);}

/* ---------- 徽章 ---------- */
.badge-cat{
  display:inline-block;background:var(--accent-soft);color:#8A6413;
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:2px;letter-spacing:0.06em;line-height:1.5;
}
.badge-cat.on-dark{background:transparent;border:1px solid rgba(233,180,76,0.5);color:var(--accent);}
.badge-key{
  display:inline-block;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.16);
  color:var(--text-inv-2);font-size:12px;padding:4px 10px;border-radius:2px;letter-spacing:0.06em;
}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;margin-top:64px;min-height:300px;display:flex;align-items:flex-end;
  background-image:linear-gradient(100deg,rgba(11,12,14,0.92) 0%,rgba(11,12,14,0.78) 48%,rgba(11,12,14,0.55) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:72px 0 44px;color:var(--text-inv);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line-inv);
}
.breadcrumb-line{font-size:13px;color:var(--text-inv-2);margin-bottom:16px;}
.breadcrumb-line a{color:var(--text-inv-2);}
.breadcrumb-line a:hover{color:var(--text-inv);}
.breadcrumb-line .sep{margin:0 8px;opacity:0.6;}
.breadcrumb-line .current{color:var(--text-inv);}
.page-hero h1{
  font-size:56px;font-weight:800;line-height:1.15;letter-spacing:-0.02em;color:#fff;
  max-width:820px;
}
.page-hero .hero-eyebrow{
  font-size:13px;font-weight:600;letter-spacing:0.14em;color:var(--primary);margin-bottom:14px;
}
.page-hero .hero-desc{
  margin-top:18px;max-width:640px;font-size:16px;line-height:1.85;color:rgba(242,243,245,0.82);
}
.banner-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px;}
.banner-tags a{
  display:inline-block;font-size:13px;padding:6px 14px;border-radius:2px;
  border:1px solid rgba(255,255,255,0.18);color:var(--text-inv-2);transition:all 180ms var(--ease);
}
.banner-tags a:hover{border-color:var(--primary);color:#fff;background:rgba(228,50,43,0.16);}

/* ---------- 数据带 ---------- */
.stat-strip{background:var(--ink-800);border-bottom:1px solid var(--line-inv);}
.stat-strip .container{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{padding:26px 24px;border-right:1px solid var(--line-inv);}
.stat-item:last-child{border-right:0;}
.stat-num{font-family:var(--font-num);font-size:36px;font-weight:700;color:var(--accent);line-height:1;font-variant-numeric:tabular-nums;}
.stat-label{margin-top:8px;font-size:13px;color:var(--text-inv-2);}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section.tight{padding-top:56px;}
.section-title{font-size:34px;font-weight:700;line-height:1.25;letter-spacing:-0.01em;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head p{color:var(--text-2);font-size:15px;max-width:560px;margin:10px 0 0;}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:0.14em;color:var(--primary);margin-bottom:12px;}
.divider-line{height:1px;background:var(--line);}

/* ---------- 主体双栏 ---------- */
.main-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:48px;}
.list-panel{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;}
.panel-head{
  padding:22px 26px;border-bottom:1px solid var(--line);display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.panel-head h2{font-size:20px;font-weight:700;}
.panel-head .count{font-size:13px;color:var(--text-2);}
.panel-head .count b{font-family:var(--font-num);color:var(--text-1);font-size:16px;}

.archive-item{
  position:relative;display:flex;gap:20px;padding:22px 26px;border-bottom:1px solid var(--line);
  transition:background 180ms var(--ease);
}
.archive-item:last-child{border-bottom:0;}
.archive-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:center;transition:transform 180ms var(--ease);
}
.archive-item:hover{background:var(--paper);}
.archive-item:hover::before{transform:scaleY(1);}
.item-index{
  font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--accent);
  line-height:1;min-width:44px;padding-top:4px;font-variant-numeric:tabular-nums;
}
.item-body{min-width:0;flex:1;}
.item-title{font-size:18px;font-weight:600;line-height:1.5;}
.item-title a{color:var(--text-1);}
.item-title a:hover{color:var(--primary);}
.item-desc{font-size:14px;color:var(--text-2);line-height:1.75;margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.item-meta{display:flex;align-items:center;gap:14px;margin-top:12px;flex-wrap:wrap;}
.item-time{font-family:var(--font-num);font-size:13px;color:var(--text-2);letter-spacing:0.04em;font-variant-numeric:tabular-nums;}

/* ---------- 分页 ---------- */
.pager{display:flex;justify-content:center;gap:8px;padding:26px;}
.pager a,.pager span{
  display:flex;align-items:center;justify-content:center;width:36px;height:36px;
  border:1px solid var(--line);border-radius:2px;font-size:14px;color:var(--text-2);
  font-family:var(--font-num);transition:all 180ms var(--ease);
}
.pager a:hover{border-color:var(--primary);color:var(--primary);}
.pager .is-current{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ---------- 侧栏 ---------- */
.side-panel{position:sticky;top:96px;display:flex;flex-direction:column;gap:28px;}
.side-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;}
.side-title{font-size:16px;font-weight:700;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.side-post{display:flex;gap:14px;padding:12px 0;border-bottom:1px dashed var(--line);}
.side-post:last-child{border-bottom:0;padding-bottom:0;}
.side-post .thumb{
  width:92px;flex:0 0 92px;aspect-ratio:16/9;overflow:hidden;border-radius:2px;background:var(--ink-700);
}
.side-post .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.side-post:hover .thumb img{transform:scale(1.03);}
.side-post .txt{min-width:0;}
.side-post h3{font-size:14.5px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.side-post h3 a{color:var(--text-1);}
.side-post h3 a:hover{color:var(--primary);}
.side-post .t{font-family:var(--font-num);font-size:12px;color:var(--text-2);margin-top:6px;display:block;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{
  font-size:13px;padding:6px 12px;border:1px solid var(--line);border-radius:2px;color:var(--text-2);
  transition:all 180ms var(--ease);
}
.tag-cloud a:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);}
.side-cta{background:var(--paper-2);border:1px solid var(--primary);border-radius:var(--radius-card);padding:24px;}
.side-cta h3{font-size:17px;font-weight:700;margin-bottom:10px;}
.side-cta p{font-size:14px;color:var(--text-2);margin-bottom:18px;}

/* ---------- 要点带 ---------- */
.point-strip{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.point-strip .container{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.point-cell{padding:38px 32px;border-right:1px solid var(--line);}
.point-cell:last-child{border-right:0;}
.point-num{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--accent);line-height:1;}
.point-cell h3{font-size:18px;font-weight:600;margin:14px 0 10px;}
.point-cell p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,0.85fr) minmax(0,1.6fr);gap:56px;}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0;}
.accordion-button{
  background:transparent;color:var(--text-1);font-size:17px;font-weight:600;padding:20px 40px 20px 0;
  box-shadow:none;border-radius:0;position:relative;
}
.accordion-button:not(.collapsed){color:var(--primary);background:transparent;box-shadow:none;}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(228,50,43,0.20);}
.accordion-button::after{
  content:"";position:absolute;right:10px;top:50%;width:9px;height:9px;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:translateY(-70%) rotate(45deg);background:none;transition:transform 240ms var(--ease);
}
.accordion-button:not(.collapsed)::after{transform:translateY(-30%) rotate(-135deg);}
.accordion-body{padding:0 40px 22px 16px;font-size:15px;line-height:1.8;color:var(--text-2);border-left:3px solid var(--primary);margin-left:0;}

/* ---------- 深色 CTA ---------- */
.cta-dark{background:var(--ink-900);color:var(--text-inv);padding:88px 0;position:relative;}
.cta-dark::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(228,50,43,0.14) 0%,rgba(11,12,14,0) 55%);
  pointer-events:none;
}
.cta-dark .container{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.cta-dark h2{font-size:34px;font-weight:700;color:#fff;line-height:1.25;}
.cta-dark .lead{color:var(--text-inv-2);font-size:15.5px;margin-top:16px;}
.cta-list{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.cta-list li{display:flex;gap:12px;font-size:14.5px;color:rgba(242,243,245,0.86);}
.cta-list li i{
  flex:0 0 18px;width:18px;height:18px;margin-top:5px;border-radius:2px;
  background:rgba(47,227,198,0.14);color:var(--neon);font-style:normal;font-size:11px;
  display:flex;align-items:center;justify-content:center;
}
.form-panel{background:var(--ink-800);border:1px solid var(--line-inv);border-radius:var(--radius-card);padding:32px;}
.form-panel h3{font-size:19px;font-weight:700;color:#fff;margin-bottom:8px;}
.form-panel .hint{font-size:13px;color:var(--text-inv-2);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--text-inv-2);margin-bottom:8px;}
.form-control,.form-select{
  height:46px;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.16);
  border-radius:3px;color:var(--text-inv);font-size:15px;padding:0 14px;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.form-control::placeholder{color:rgba(154,160,171,0.8);}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,0.08);border-color:var(--primary);color:#fff;
  box-shadow:0 0 0 3px rgba(228,50,43,0.18);
}
.form-select option{background:var(--ink-800);color:var(--text-inv);}
.privacy{font-size:12px;color:var(--text-inv-2);margin-top:14px;line-height:1.7;}
.form-msg{margin-top:14px;font-size:13px;color:var(--neon);display:none;}
.form-msg.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:var(--text-inv);border-top:1px solid var(--line-inv);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-logo span{color:var(--primary);}
.site-footer p{font-size:14px;color:var(--text-inv-2);line-height:1.85;}
.site-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.site-footer ul li{margin-bottom:12px;}
.site-footer ul a{font-size:14px;color:var(--text-inv-2);}
.site-footer ul a:hover{color:var(--primary);}
.footer-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px;}
.footer-tags span{
  font-size:12px;padding:4px 10px;border-radius:2px;letter-spacing:0.06em;
  border:1px solid rgba(255,255,255,0.14);color:var(--text-inv-2);
}
.footer-contact p{margin-bottom:10px;}
.qr-box{
  width:120px;height:120px;margin-top:18px;border:1px dashed rgba(255,255,255,0.24);border-radius:2px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--text-inv-2);line-height:1.6;padding:10px;
  background:rgba(255,255,255,0.03);
}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line-inv);padding:24px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-inv-2);margin:0;}

/* ---------- 移动端抽屉 ---------- */
.offcanvas.mobile-nav{background:var(--ink-900);color:var(--text-inv);width:300px;}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line-inv);padding:18px 22px;}
.mobile-logo{font-size:18px;font-weight:800;color:#fff;}
.mobile-logo span{color:var(--primary);}
.mobile-nav .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:0.7;}
.mobile-nav .offcanvas-body{padding:22px;display:flex;flex-direction:column;gap:4px;}
.mobile-link{
  position:relative;display:block;font-size:18px;line-height:1.6;padding:14px 12px;
  color:var(--text-inv-2);border-bottom:1px solid var(--line-inv);
}
.mobile-link:hover{color:#fff;}
.mobile-link.active{color:#fff;}
.mobile-link.active::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--neon);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 400ms var(--ease),transform 400ms var(--ease);}
.reveal.is-inview{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (min-width:992px) and (max-width:1199px){
  .section-title{font-size:30px;}
  .main-grid{gap:32px;}
}
@media (max-width:991px){
  .site-nav{display:none;}
  .header-cta{display:none;}
  .navbar-toggler{display:flex;}
  .site-header .container{gap:16px;}
  .main-grid{grid-template-columns:1fr;gap:40px;}
  .side-panel{position:static;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .cta-dark .container{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stat-strip .container{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line-inv);}
  .point-strip .container{grid-template-columns:1fr;}
  .point-cell{border-right:0;border-bottom:1px solid var(--line);padding:28px 24px;}
  .point-cell:last-child{border-bottom:0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .site-header .navbar{height:56px;}
  .page-hero{margin-top:56px;padding:56px 0 36px;min-height:260px;}
  .page-hero h1{font-size:32px;}
  .section{padding:56px 0;}
  .section-title{font-size:24px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:28px;}
  .cta-dark h2{font-size:24px;}
  .archive-item{padding:18px 18px;gap:14px;}
  .item-index{font-size:22px;min-width:36px;}
  .item-title{font-size:16.5px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .form-panel{padding:24px 20px;}
  .btn{min-height:44px;}
  .cta-dark{padding:60px 0;}
  .side-post .thumb{width:84px;flex-basis:84px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .stat-strip .container{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line-inv);}
  .stat-item:last-child{border-bottom:0;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:1ms !important;animation-duration:1ms !important;}
  .reveal{opacity:1;transform:none;}
  .btn-primary:hover{transform:none;}
  .side-post:hover .thumb img{transform:none;}
}

/* roulang page: article */
:root{
  --ink-900:#0B0C0E;
  --ink-800:#14161A;
  --ink-700:#1D2026;
  --paper:#F6F5F2;
  --paper-2:#FFFFFF;
  --text-1:#16181D;
  --text-2:#5A5F6B;
  --text-inv:#F2F3F5;
  --text-inv-2:#9AA0AB;
  --line:rgba(11,12,14,.10);
  --line-inv:rgba(255,255,255,.08);
  --primary:#E4322B;
  --primary-600:#C21F1A;
  --primary-soft:rgba(228,50,43,.12);
  --accent:#E9B44C;
  --accent-soft:rgba(233,180,76,.14);
  --accent-ink:#8A6413;
  --neon:#2FE3C6;
  --ok:#2E9E6B;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num:"Oswald","Barlow Condensed","DIN Alternate",Impact,"Arial Narrow",sans-serif;
  --r-card:4px;
  --r-btn:3px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --bs-primary:#E4322B;
  --bs-primary-rgb:228,50,43;
  --bs-body-bg:#F6F5F2;
  --bs-body-color:#16181D;
  --bs-border-color:rgba(11,12,14,.10);
  --bs-link-color:#C21F1A;
  --bs-link-hover-color:#E4322B;
  --bs-font-sans-serif:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --bs-border-radius:4px;
  --bs-border-radius-sm:3px;
  --bs-border-radius-lg:4px;
  --bs-emphasis-color:#16181D;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary-600);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--primary);}
h1,h2,h3,h4{margin:0;color:var(--text-1);letter-spacing:-.01em;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(228,50,43,.20);border-radius:3px;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;--bs-gutter-x:24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--ink-900);
  border-bottom:1px solid var(--line-inv);
  transition:background .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(11,12,14,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);}
.navbar{padding:0;}
.navbar .container{display:flex;align-items:center;min-height:64px;}
.navbar-brand{
  font-size:20px;font-weight:800;color:#fff;letter-spacing:-.01em;
  padding:0;margin:0;line-height:1.2;
}
.navbar-brand span{color:var(--primary);}
.navbar-brand:hover{color:#fff;}
.site-nav{display:flex;flex-direction:row;align-items:center;gap:2px;margin-left:36px;margin-right:auto;}
.site-nav .nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text-inv-2);
  padding:22px 14px;background:none;border:0;transition:color .18s var(--ease);
}
.site-nav .nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:12px;height:1px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.site-nav .nav-link:hover{color:var(--text-inv);}
.site-nav .nav-link:hover::after{transform:scaleX(1);}
.site-nav .nav-link.active{color:var(--text-inv);}
.site-nav .nav-link.active::after{
  height:2px;background:var(--neon);transform:scaleX(1);
  box-shadow:0 0 12px rgba(47,227,198,.55);
}
.site-nav .nav-link.active::before{
  content:"";position:absolute;left:4px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;background:var(--primary);
}
.header-cta{margin-left:16px;padding:9px 18px;font-size:14px;}
.navbar-toggler{
  width:42px;height:38px;margin-left:auto;padding:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:1px solid rgba(255,255,255,.18);border-radius:3px;
}
.navbar-toggler span{display:block;width:18px;height:2px;background:#fff;}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(228,50,43,.20);}
@media (max-width:991.98px){
  .navbar .container{min-height:56px;}
  .site-nav{display:none;}
  .header-cta{display:none;}
  .navbar-brand{font-size:18px;}
}

/* ---------- 移动端抽屉导航 ---------- */
.mobile-nav{background:var(--ink-900);color:var(--text-inv);width:300px;border-left:1px solid var(--line-inv);}
.mobile-nav .offcanvas-header{padding:18px 22px;border-bottom:1px solid var(--line-inv);}
.mobile-nav .offcanvas-title{font-size:17px;font-weight:800;color:#fff;}
.mobile-nav .offcanvas-title span{color:var(--primary);}
.mobile-nav .offcanvas-body{padding:10px 0 0;}
.mobile-nav .nav-link{
  display:block;font-size:18px;color:var(--text-inv-2);
  padding:14px 22px;border-left:3px solid transparent;border-radius:0;
}
.mobile-nav .nav-link:hover{color:#fff;}
.mobile-nav .nav-link.active{color:#fff;background:rgba(255,255,255,.04);border-left-color:var(--neon);}
.mobile-nav .m-cta{margin:20px 22px 26px;display:block;text-align:center;}

/* ---------- 按钮 ---------- */
.btn{
  --bs-btn-border-radius:var(--r-btn);
  border-radius:var(--r-btn);
  font-weight:600;
  letter-spacing:.01em;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{
  --bs-btn-bg:var(--primary);
  --bs-btn-border-color:var(--primary);
  --bs-btn-hover-bg:var(--primary-600);
  --bs-btn-hover-border-color:var(--primary-600);
  --bs-btn-active-bg:var(--primary-600);
  --bs-btn-active-border-color:var(--primary-600);
  --bs-btn-color:#fff;
  --bs-btn-hover-color:#fff;
  --bs-btn-active-color:#fff;
  --bs-btn-disabled-bg:var(--primary);
  --bs-btn-disabled-border-color:var(--primary);
  padding:12px 24px;font-size:15px;
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(228,50,43,.28);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-line{
  background:transparent;border:1px solid rgba(11,12,14,.28);color:var(--text-1);
  padding:11px 22px;font-size:15px;
}
.btn-line:hover{background:rgba(228,50,43,.08);border-color:var(--primary);color:var(--primary-600);transform:translateY(-1px);}
.btn-line-inv{
  background:transparent;border:1px solid rgba(255,255,255,.24);color:var(--text-inv);
  padding:11px 22px;font-size:15px;
}
.btn-line-inv:hover{background:rgba(228,50,43,.16);border-color:var(--primary);color:#fff;transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;background:none;border:0;padding:0;
  font-size:14px;font-weight:600;color:var(--primary-600);
}
.btn-ghost svg{transition:transform .18s var(--ease);}
.btn-ghost:hover svg{transform:translateX(4px);}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:22px 0 0;}
.breadcrumb{
  --bs-breadcrumb-divider:"/";
  --bs-breadcrumb-item-padding-x:8px;
  font-size:13px;margin:0;padding:0;background:transparent;
}
.breadcrumb-item{color:var(--text-2);}
.breadcrumb-item a{color:var(--text-2);}
.breadcrumb-item a:hover{color:var(--primary);}
.breadcrumb-item.active{color:var(--text-1);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-head{padding:22px 0 26px;border-bottom:1px solid var(--line);}
.badge-cat{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.06em;
  padding:4px 10px;border-radius:2px;background:var(--accent-soft);color:var(--accent-ink);
}
.article-title{
  font-size:32px;font-weight:800;line-height:1.25;letter-spacing:-.02em;
  margin:16px 0 0;
}
@media (min-width:992px){.article-title{font-size:40px;}}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:18px;font-size:13px;color:var(--text-2);
}
.meta-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.06em;}
.meta-sep{width:1px;height:12px;background:var(--line);display:inline-block;}

/* ---------- 正文 ---------- */
.article-section{padding:40px 0 0;}
.article-main{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;
}
@media (max-width:767.98px){.article-main{padding:20px 18px;}}
.article-body{max-width:760px;font-size:17px;line-height:1.85;color:var(--text-1);text-align:left;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:26px;font-weight:700;line-height:1.35;
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--primary);
}
.article-body h3{font-size:21px;font-weight:600;line-height:1.45;margin:32px 0 12px;}
.article-body h4{font-size:18px;font-weight:600;margin:24px 0 10px;}
.article-body a{color:var(--primary-600);border-bottom:1px solid var(--primary-soft);}
.article-body a:hover{color:var(--primary);border-bottom-color:var(--primary);}
.article-body strong{font-weight:600;}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;
  background:var(--paper-2);border-left:3px solid var(--accent);
  color:var(--text-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1.2em;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.8;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:var(--primary);
}
.article-body ol{list-style:none;padding-left:0;margin:0 0 1.2em;counter-reset:artnum;}
.article-body ol li{position:relative;padding-left:32px;margin-bottom:10px;line-height:1.8;counter-increment:artnum;}
.article-body ol li::before{
  content:counter(artnum);position:absolute;left:0;top:0;
  font-family:var(--font-num);font-weight:700;font-size:16px;color:var(--primary);
}
.article-body img{border-radius:2px;margin:24px 0 8px;width:100%;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-2);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th{
  background:var(--ink-800);color:#fff;font-weight:600;text-align:left;
  padding:12px 14px;font-size:14px;
}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text-1);}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ---------- 文末操作 ---------- */
.post-foot{margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;}
.tag-row span{
  font-size:12px;letter-spacing:.06em;padding:4px 10px;border-radius:2px;
  background:var(--accent-soft);color:var(--accent-ink);font-weight:600;
}
.action-row{display:flex;flex-wrap:wrap;gap:12px;}
.post-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  margin-top:28px;padding-top:24px;border-top:1px solid var(--line);
}
@media (max-width:767.98px){.post-nav{grid-template-columns:1fr;}}
.post-nav a{
  display:block;padding:16px 18px;border:1px solid var(--line);border-radius:4px;
  background:var(--paper);transition:all .18s var(--ease);
}
.post-nav a:hover{border-color:var(--primary);background:var(--paper-2);transform:translateY(-2px);}
.post-nav .pn-label{font-size:12px;color:var(--text-2);letter-spacing:.08em;}
.post-nav .pn-title{
  display:block;margin-top:8px;font-size:15px;font-weight:600;color:var(--text-1);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 空态 ---------- */
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;color:var(--text-2);
}
.empty-state svg{width:32px;height:32px;stroke:var(--text-2);}
.empty-state p{margin:0;font-size:15px;}

/* ---------- 侧栏 ---------- */
.side-inner{position:sticky;top:88px;display:flex;flex-direction:column;gap:24px;}
@media (max-width:991.98px){.side-inner{position:static;margin-top:8px;}}
.side-card{background:var(--paper-2);border:1px solid var(--line);border-radius:4px;padding:22px;}
.side-card h2{
  font-size:15px;font-weight:700;letter-spacing:.02em;
  padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);
}
.side-list{list-style:none;padding:0;margin:0;}
.side-list li{margin-bottom:12px;font-size:14px;line-height:1.6;}
.side-list li:last-child{margin-bottom:0;}
.side-list a{color:var(--text-2);display:block;}
.side-list a:hover{color:var(--primary);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud span{
  font-size:13px;padding:5px 10px;border:1px solid var(--line);border-radius:2px;
  color:var(--text-2);background:var(--paper);transition:all .18s var(--ease);
}
.tag-cloud span:hover{border-color:var(--primary);color:var(--primary);}
.side-cta{border:1px solid var(--primary);background:var(--primary-soft);border-radius:4px;padding:22px;}
.side-cta h2{font-size:17px;font-weight:700;color:var(--text-1);margin-bottom:8px;}
.side-cta p{font-size:14px;color:var(--text-2);margin:0 0 16px;line-height:1.75;}

/* ---------- 继续阅读 ---------- */
.related-section{padding:72px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:28px;padding-bottom:16px;border-bottom:1px solid var(--line);
}
.section-head h2{font-size:26px;font-weight:700;}
.section-head p{margin:8px 0 0;font-size:14px;color:var(--text-2);}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:991.98px){.rel-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575.98px){.rel-grid{grid-template-columns:1fr;}}
.rel-card{
  display:block;background:var(--paper-2);border:1px solid var(--line);border-radius:4px;
  overflow:hidden;transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.rel-card:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(11,12,14,.08);border-color:var(--primary);}
.rel-cover{aspect-ratio:16/9;overflow:hidden;background:var(--ink-800);}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.rel-card:hover .rel-cover img{transform:scale(1.03);}
.rel-body{padding:20px;}
.rel-body h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--text-1);}
.rel-body p{margin:10px 0 0;font-size:14px;color:var(--text-2);line-height:1.75;}
.rel-more{
  margin-top:14px;display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--primary-600);
}
.rel-more svg{transition:transform .18s var(--ease);}
.rel-card:hover .rel-more svg{transform:translateX(4px);}

/* ---------- 底部深色 CTA ---------- */
.cta-band{background:var(--ink-900);color:var(--text-inv);margin-top:80px;padding:64px 0;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
@media (max-width:991.98px){.cta-grid{grid-template-columns:1fr;gap:32px;}}
.cta-band h2{color:#fff;font-size:28px;font-weight:700;line-height:1.35;}
.cta-list{list-style:none;padding:0;margin:22px 0 0;display:flex;flex-direction:column;gap:12px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-inv-2);line-height:1.7;}
.cta-list svg{flex:0 0 auto;margin-top:5px;width:14px;height:14px;stroke:var(--neon);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media (max-width:575.98px){.cta-actions .btn{width:100%;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:var(--text-inv-2);border-top:1px solid var(--line-inv);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;}}
.footer-logo{font-size:20px;font-weight:800;color:#fff;letter-spacing:-.01em;}
.footer-logo span{color:var(--primary);}
.site-footer p{font-size:14px;line-height:1.8;margin:14px 0 0;}
.site-footer h3{font-size:15px;font-weight:600;color:var(--text-inv);margin-bottom:16px;}
.site-footer ul{list-style:none;padding:0;margin:0;}
.site-footer li{margin-bottom:10px;}
.site-footer a{font-size:14px;color:var(--text-inv-2);}
.site-footer a:hover{color:#fff;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-tags span{
  font-size:12px;letter-spacing:.06em;padding:4px 10px;border-radius:2px;
  border:1px solid rgba(255,255,255,.14);color:var(--text-inv-2);
}
.footer-contact p{margin:0 0 10px;}
.qr-box{
  width:120px;height:120px;margin-top:14px;border:1px dashed rgba(255,255,255,.20);
  border-radius:2px;display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12px;line-height:1.6;color:var(--text-inv-2);padding:8px;
}
.footer-bottom{
  margin-top:56px;padding:20px 0;border-top:1px solid var(--line-inv);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
}
.footer-bottom p{margin:0;font-size:13px;}

/* ---------- 动效入场 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.is-inview{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
  .btn:hover,.rel-card:hover,.post-nav a:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --ink-900:#0B0C0E;
  --ink-800:#14161A;
  --ink-700:#1D2026;
  --paper:#F6F5F2;
  --paper-2:#FFFFFF;
  --text-1:#16181D;
  --text-2:#5A5F6B;
  --text-inv:#F2F3F5;
  --text-inv-2:#9AA0AB;
  --line:rgba(11,12,14,0.10);
  --line-inv:rgba(255,255,255,0.08);
  --primary:#E4322B;
  --primary-600:#C21F1A;
  --primary-soft:rgba(228,50,43,0.12);
  --accent:#E9B44C;
  --accent-soft:rgba(233,180,76,0.14);
  --neon:#2FE3C6;
  --ok:#2E9E6B;
  --warn:#C9A227;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num:"Oswald","Barlow Condensed","DIN Alternate",Impact,"Arial Narrow",sans-serif;
  --radius:4px;
  --radius-sm:3px;
  --ease:cubic-bezier(0.2,0.7,0.2,1);
  --sec:96px;
}

/* Bootstrap 变量重塑 */
:root{
  --bs-primary:var(--primary);
  --bs-body-bg:var(--paper);
  --bs-body-color:var(--text-1);
  --bs-body-font-family:var(--font-sans);
  --bs-border-color:var(--line);
  --bs-link-color:var(--text-1);
  --bs-link-hover-color:var(--primary);
  --bs-font-sans-serif:var(--font-sans);
  --bs-border-radius:var(--radius);
  --bs-border-radius-sm:var(--radius-sm);
  --bs-border-radius-lg:var(--radius);
  --bs-emphasis-color:var(--text-1);
}

/* 基础 reset */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--text-1);text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:var(--primary)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:var(--text-1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid rgba(228,50,43,0.55);outline-offset:2px}

.container{width:100%;max-width:1200px;padding-inline:20px;margin-inline:auto}
@media (min-width:1440px){.container{max-width:1280px}}

.section{padding:var(--sec) 0}
.section-tight{padding:56px 0}
.sec-label{
  font-size:13px;
  font-weight:600;
  letter-spacing:0.14em;
  color:var(--primary);
  margin-bottom:18px;
  display:block;
}
.sec-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.sec-head h2{font-size:34px;line-height:1.25;font-weight:700}
.sec-head p{font-size:15px;color:var(--text-2);margin-top:10px;max-width:620px}
.ghost-link{
  font-size:15px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
}
.ghost-link .arrow{transition:transform 180ms var(--ease)}
.ghost-link:hover .arrow{transform:translateX(4px)}

/* 按钮 */
.btn{
  border-radius:var(--radius-sm);
  font-weight:600;
  font-size:15px;
  padding:12px 24px;
  border-width:1px;
  transition:transform 180ms var(--ease),background-color 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-primary{
  --bs-btn-bg:var(--primary);
  --bs-btn-border-color:var(--primary);
  --bs-btn-color:#fff;
  --bs-btn-hover-bg:var(--primary-600);
  --bs-btn-hover-border-color:var(--primary-600);
  --bs-btn-hover-color:#fff;
  --bs-btn-active-bg:var(--primary-600);
  --bs-btn-active-border-color:var(--primary-600);
  --bs-btn-active-color:#fff;
  --bs-btn-disabled-bg:var(--primary);
  --bs-btn-disabled-border-color:var(--primary);
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.btn-primary:hover,.btn-primary:focus{
  background:var(--primary-600);
  border-color:var(--primary-600);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 8px 24px rgba(228,50,43,0.28);
}
.btn-outline-dark{
  background:transparent;
  border:1px solid rgba(11,12,14,0.24);
  color:var(--text-1);
}
.btn-outline-dark:hover{
  background:var(--primary-soft);
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-1px);
}
.btn-ghost-light{
  background:transparent;
  border:1px solid rgba(255,255,255,0.24);
  color:var(--text-inv);
}
.btn-ghost-light:hover{background:rgba(255,255,255,0.08);color:var(--text-inv)}
.btn:focus,.btn:focus-visible{box-shadow:0 0 0 3px rgba(228,50,43,0.20);outline:none}

/* 徽章 */
.badge-cat{
  display:inline-block;
  background:var(--accent-soft);
  color:#8A6413;
  font-size:12px;
  font-weight:600;
  letter-spacing:0.06em;
  padding:4px 10px;
  border-radius:2px;
  line-height:1.6;
}
.badge-light{
  background:transparent;
  border:1px solid rgba(255,255,255,0.28);
  color:var(--accent);
}

/* 顶栏导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--ink-900);
  border-bottom:1px solid var(--line-inv);
  transition:background 240ms var(--ease),backdrop-filter 240ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(11,12,14,0.92);
  backdrop-filter:blur(8px);
}
.site-header .navbar{padding:0;height:64px}
.site-header .container{display:flex;align-items:center;gap:24px;height:100%}
.navbar-brand{
  font-size:20px;
  font-weight:800;
  color:var(--text-inv);
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.navbar-brand span{color:var(--primary)}
.navbar-brand:hover{color:var(--text-inv)}
.site-nav{display:none}
@media (min-width:992px){
  .site-nav{display:flex;flex-direction:row;align-items:center;gap:34px;margin:0 auto}
}
.site-nav .nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-inv-2);
  padding:10px 0;
  transition:color 180ms var(--ease);
}
.site-nav .nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:1px;
  background:transparent;
  transition:background 180ms var(--ease);
}
.site-nav .nav-link:hover{color:var(--text-inv)}
.site-nav .nav-link:hover::after{background:var(--primary)}
.site-nav .nav-link.active{color:var(--text-inv)}
.site-nav .nav-link.active::after{
  height:2px;
  background:var(--neon);
  box-shadow:0 0 12px rgba(47,227,198,0.55);
}
@media (min-width:992px){
  .site-nav .nav-link.active::before{
    content:"";
    position:absolute;
    left:-14px;top:50%;
    transform:translateY(-50%);
    width:6px;height:6px;
    background:var(--primary);
    border-radius:1px;
  }
}
.header-cta{margin-left:auto;white-space:nowrap}
.navbar-toggler{
  display:none;
  border:0;
  background:transparent;
  padding:8px 4px;
  margin-left:8px;
  box-shadow:none!important;
}
.navbar-toggler span{
  display:block;
  width:22px;height:2px;
  background:#fff;
  margin:5px 0;
  transition:transform 180ms var(--ease),opacity 180ms var(--ease);
}
@media (max-width:991px){
  .navbar-toggler{display:block}
  .site-header .container{gap:12px}
}
@media (max-width:575px){
  .header-cta{display:none}
}

/* 移动端抽屉 */
.offcanvas.site-mobile{background:var(--ink-900);color:var(--text-inv);width:300px;border-right:1px solid var(--line-inv)}
.offcanvas.site-mobile .offcanvas-header{border-bottom:1px solid var(--line-inv);padding:18px 20px}
.offcanvas.site-mobile .offcanvas-title{font-size:17px;font-weight:800;color:var(--text-inv)}
.offcanvas.site-mobile .offcanvas-title span{color:var(--primary)}
.offcanvas.site-mobile .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.75}
.mobile-nav{padding:12px 20px 24px}
.mobile-nav a{
  display:block;
  font-size:18px;
  color:var(--text-inv-2);
  padding:14px 0;
  border-bottom:1px solid var(--line-inv);
}
.mobile-nav a:hover{color:var(--text-inv)}
.mobile-nav a.active{
  color:var(--text-inv);
  border-left:3px solid var(--neon);
  padding-left:12px;
}

/* 分类页头 */
.page-head{background:var(--paper);padding:40px 0 0}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);margin:0;padding:0;background:transparent;
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--text-2);opacity:.6}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--text-1)}
.head-row{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px 48px;
  margin-top:26px;
}
.head-left{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.head-left h1{
  font-size:clamp(30px,6vw,68px);
  font-weight:800;
  line-height:1.05;
  letter-spacing:-0.02em;
}
.head-desc{max-width:430px;font-size:15px;line-height:1.9;color:var(--text-2)}
.head-stats{display:flex;flex-wrap:wrap;gap:48px;margin-top:34px}
.stat b{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:28px;
  font-weight:700;
  color:var(--primary);
  display:block;
  line-height:1.2;
}
.stat span{font-size:12px;color:var(--text-2);letter-spacing:0.04em}
.head-line{height:1px;background:var(--line);margin-top:34px}

/* 图墙 Bento */
.bento{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:168px;
  gap:16px;
}
.tile{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:2px;
  border:1px solid var(--line);
  background:var(--ink-800);
}
.tile--big{grid-column:span 2;grid-row:span 2}
.tile--wide{grid-column:span 2}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.tile:hover img{transform:scale(1.04)}
.tile::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,12,14,0.82) 0%,rgba(11,12,14,0.40) 46%,rgba(11,12,14,0.14) 100%);
  transition:opacity 240ms var(--ease);
}
.tile:hover::after{opacity:.94}
.tile-cap{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:var(--text-inv)}
.tile-num{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  letter-spacing:0.08em;
  color:var(--accent);
  margin-bottom:6px;
}
.tile-cap h3{font-size:16px;font-weight:600;color:var(--text-inv);line-height:1.45}
.tile--big .tile-cap h3{font-size:23px;font-weight:700}
.tile-cap p{font-size:13px;color:var(--text-inv-2);margin-top:6px;line-height:1.7}

/* 卡片栅格 */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.gcard{
  display:flex;
  flex-direction:column;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  color:inherit;
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.gcard:hover{
  color:inherit;
  transform:translateY(-2px);
  border-color:var(--primary);
  box-shadow:0 6px 20px rgba(11,12,14,0.08);
}
.gcard-cover{aspect-ratio:16/9;overflow:hidden;background:var(--ink-800)}
.gcard-cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.gcard:hover .gcard-cover img{transform:scale(1.03)}
.gcard-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.gcard-body h3{
  font-size:18px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.gcard-body p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.gcard-meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-2);
}
.gcard-meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:0.04em}
.arrow{transition:transform 180ms var(--ease)}
.gcard:hover .arrow,.cta-bar:hover .arrow{transform:translateX(4px)}

/* 横向 CTA 条 */
.cta-bar{
  border:1px solid var(--primary);
  border-left:4px solid var(--primary);
  background:var(--paper-2);
  border-radius:2px;
  padding:26px 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.cta-bar p{font-size:16px;line-height:1.75;max-width:700px;color:var(--text-1)}

/* 深色报名区 */
.join{
  background:var(--ink-900);
  color:var(--text-inv);
  padding:var(--sec) 0;
  border-top:1px solid var(--line-inv);
  border-bottom:1px solid var(--line-inv);
}
.join h2{color:var(--text-inv);font-size:34px;line-height:1.25}
.join .lead{color:var(--text-inv-2);font-size:15px;margin-top:14px;max-width:520px}
.join-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.check-list{margin-top:28px;display:flex;flex-direction:column;gap:14px}
.check-list li{
  position:relative;
  padding-left:26px;
  font-size:14px;
  color:var(--text-inv-2);
  line-height:1.8;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:12px;height:7px;
  border-left:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);
}
.form-dark{
  background:rgba(255,255,255,0.03);
  border:1px solid var(--line-inv);
  border-radius:var(--radius);
  padding:28px;
}
.form-dark .form-label{font-size:13px;color:var(--text-inv-2);margin-bottom:8px;letter-spacing:0.04em}
.form-dark .form-control,
.form-dark .form-select{
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.16);
  color:var(--text-inv);
  height:46px;
  border-radius:var(--radius-sm);
  font-size:15px;
}
.form-dark .form-control::placeholder{color:var(--text-inv-2)}
.form-dark .form-control:focus,
.form-dark .form-select:focus{
  background:rgba(255,255,255,0.08);
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(228,50,43,0.18);
  color:var(--text-inv);
}
.form-dark .form-select option{color:#16181D}
.form-note{font-size:12px;color:var(--text-inv-2);margin-top:14px;line-height:1.7}
.form-msg{font-size:13px;margin-top:12px;display:none}
.form-msg.is-ok{
  display:block;
  border-left:3px solid var(--primary);
  padding-left:12px;
  color:var(--text-inv);
}
.form-msg.is-err{display:block;color:#F19A96}

/* FAQ */
.faq{border-top:1px solid var(--line)}
.faq .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq .accordion-button{
  background:transparent;
  box-shadow:none;
  color:var(--text-1);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  padding:22px 40px 22px 0;
  border-radius:0;
  transition:color 200ms var(--ease),box-shadow 200ms var(--ease),padding 200ms var(--ease);
}
.faq .accordion-button:not(.collapsed){
  color:var(--primary);
  background:transparent;
  padding-left:16px;
  box-shadow:inset 3px 0 0 var(--primary);
}
.faq .accordion-button::after{
  width:11px;height:11px;
  background-image:none;
  border-right:2px solid var(--text-2);
  border-bottom:2px solid var(--text-2);
  transform:rotate(45deg);
  margin-top:-6px;
  transition:transform 240ms var(--ease),border-color 240ms var(--ease);
}
.faq .accordion-button:not(.collapsed)::after{
  border-color:var(--primary);
  transform:rotate(-135deg);
  margin-top:2px;
}
.faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(228,50,43,0.14)}
.faq .accordion-body{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  max-width:840px;
}
.faq .accordion-collapse{border:0}

/* 页脚 */
.site-footer{
  background:var(--ink-900);
  color:var(--text-inv-2);
  border-top:1px solid var(--line-inv);
  padding:64px 0 0;
  font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-logo{font-size:20px;font-weight:800;color:var(--text-inv);margin-bottom:14px}
.footer-logo span{color:var(--primary)}
.site-footer p{line-height:1.85}
.site-footer h3{font-size:14px;font-weight:600;color:var(--text-inv);letter-spacing:0.06em;margin-bottom:16px}
.site-footer ul li a{
  display:inline-block;
  padding:6px 0;
  color:var(--text-inv-2);
  font-size:14px;
}
.site-footer ul li a:hover{color:var(--text-inv)}
.footer-tags span{
  display:inline-block;
  border:1px solid var(--line-inv);
  border-radius:2px;
  padding:4px 10px;
  font-size:12px;
  margin:14px 8px 0 0;
  color:var(--text-inv-2);
}
.footer-contact p{margin-bottom:8px}
.qr-box{
  width:120px;height:120px;
  border:1px dashed rgba(255,255,255,0.24);
  border-radius:2px;
  display:flex;align-items:center;justify-content:center;
  text-align:center;
  font-size:12px;
  line-height:1.6;
  margin-top:14px;
  color:var(--text-inv-2);
}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid var(--line-inv);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
}
.footer-bottom p{margin:0;color:var(--text-inv-2)}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 400ms var(--ease),transform 400ms var(--ease)}
.reveal.is-inview{opacity:1;transform:none}

/* 响应式 */
@media (max-width:991px){
  :root{--sec:72px}
  .sec-head h2,.join h2{font-size:28px}
  .head-stats{gap:32px}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:152px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .join-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sec:56px}
  .page-head{padding-top:28px}
  .head-row{margin-top:20px}
  .head-desc{max-width:none}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:140px;gap:12px}
  .tile--big,.tile--wide{grid-column:span 2;grid-row:span 1}
  .tile--big .tile-cap h3{font-size:18px}
  .cards{grid-template-columns:1fr;gap:16px}
  .cta-bar{padding:20px}
  .form-dark{padding:20px}
  .faq .accordion-button{font-size:16px;padding:18px 34px 18px 0}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .head-stats{gap:24px}
  .stat b{font-size:24px}
  .btn{min-height:44px}
  .btn-sm{min-height:40px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
  .tile:hover img,.gcard:hover .gcard-cover img{transform:none}
  .gcard:hover,.btn-primary:hover,.btn-outline-dark:hover{transform:none}
}