/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --bg-0:#0A0D0A;
  --bg-1:#11160F;
  --surface:#161C14;
  --surface-2:#1E2619;
  --brand:#C6FF3D;
  --teal:#21E6B4;
  --orange:#FF6A2B;
  --amber:#FFB020;
  --ink:#EEF4E7;
  --ink-2:#A7B29C;
  --ink-3:#6E7A66;
  --paper:#F5F8EF;
  --paper-ink:#16201A;
  --line:rgba(198,255,61,.14);
  --line-2:rgba(255,255,255,.08);
  --grad-brand:linear-gradient(120deg,#C6FF3D,#21E6B4);
  --grad-cta:linear-gradient(120deg,#FF7A2F,#FF4D2B);
  --r-xs:8px; --r-sm:14px; --r-md:22px; --r-lg:28px; --pill:999px;
  --sh-1:0 6px 24px rgba(0,0,0,.45);
  --sh-2:0 18px 48px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(198,255,61,.35),0 8px 32px rgba(198,255,61,.18);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg-1);color:var(--ink);
  font-family:var(--font);font-size:16px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s ease,transform .22s ease}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.2}
p{margin:0}
svg{display:block}
::selection{background:var(--brand);color:#0A0D0A}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ===================== 容器与板块 ===================== */
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.sec{padding:110px 0;position:relative}
.sec--tight{padding:78px 0}
.sec--alt{background:var(--bg-0)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.02em;color:var(--brand);text-transform:none;margin-bottom:14px;
}
.sec-tag::before{content:"";width:22px;height:2px;background:var(--grad-brand);border-radius:2px}
h2.sec-title{font-size:clamp(26px,3.2vw,40px);font-weight:900;line-height:1.2;max-width:760px}
.sec-desc{color:var(--ink-2);font-size:16px;max-width:640px;margin-top:16px;line-height:1.85}
.grad-text{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 26px;border-radius:var(--pill);border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;background:none;
}
.btn-cta{background:var(--grad-cta);color:#180A03;box-shadow:0 10px 26px rgba(255,77,43,.28)}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,77,43,.4);color:#180A03}
.btn-brand{background:var(--grad-brand);color:#0A0D0A;box-shadow:var(--glow)}
.btn-brand:hover{transform:translateY(-2px);color:#0A0D0A;box-shadow:0 0 0 1px rgba(198,255,61,.5),0 14px 38px rgba(198,255,61,.28)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-dark{background:#0F1A0C;color:var(--ink);border-color:rgba(10,13,10,.55)}
.btn-dark:hover{background:#0A0D0A;color:var(--brand);transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn--wide{width:100%}

/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,13,10,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-2);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--teal) 42%,rgba(33,230,180,0) 100%);
  opacity:.85;pointer-events:none;
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;color:#0A0D0A;
  box-shadow:0 6px 20px rgba(198,255,61,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:18px;font-weight:900;letter-spacing:-.01em;line-height:1}
.brand:hover .brand-text{color:var(--brand)}
.nav-menu{display:flex;align-items:center;gap:4px;margin:0}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 16px;
  border-radius:var(--pill);font-size:15px;font-weight:500;color:var(--ink-2);
}
.nav-link:hover{color:var(--brand);transform:translateY(-2px)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:6px;height:2px;
  background:var(--grad-brand);border-radius:2px;
  box-shadow:0 0 12px rgba(198,255,61,.65);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  background:rgba(255,255,255,.02);display:flex;align-items:center;justify-content:center;
  color:var(--ink-2);cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);box-shadow:var(--glow)}
.icon-btn svg{width:18px;height:18px}
.burger{display:none;width:46px;height:46px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.02);cursor:pointer;padding:0;position:relative}
.burger span{
  position:absolute;left:13px;right:13px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 8px rgba(198,255,61,.7);
  transition:transform .28s ease,opacity .2s ease,top .28s ease;
}
.burger span:nth-child(1){top:16px}
.burger span:nth-child(2){top:22px}
.burger span:nth-child(3){top:28px}
.burger.is-open span:nth-child(1){top:22px;transform:rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){top:22px;transform:rotate(-45deg)}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:120;
  background:var(--bg-0);border-left:2px solid transparent;
  border-image:linear-gradient(180deg,var(--brand),var(--teal)) 1;
  transform:translateX(105%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  padding:26px 22px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:16px;font-weight:900}
.drawer-close{background:none;border:1px solid var(--line);color:var(--ink-2);width:38px;height:38px;border-radius:12px;cursor:pointer;line-height:1}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 16px;border-radius:var(--r-sm);
  color:var(--ink-2);font-size:16px;font-weight:500;
}
.drawer-link:hover,.drawer-link.is-active{background:rgba(198,255,61,.1);color:var(--brand)}
.drawer-cta{margin-top:18px}
.drawer-mask{position:fixed;inset:0;background:rgba(4,6,4,.68);opacity:0;visibility:hidden;transition:opacity .3s ease;z-index:110}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ===================== Hero ===================== */
.hero{
  position:relative;overflow:hidden;
  background-image:
    linear-gradient(100deg,rgba(10,13,10,.96) 0%,rgba(10,13,10,.84) 42%,rgba(10,13,10,.42) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line-2);
}
.hero::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad-brand);opacity:.9;
}
.hero-inner{padding:96px 0 78px;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:var(--pill);
  border:1px solid var(--line);background:rgba(198,255,61,.07);
  font-size:13px;font-weight:700;color:var(--brand);margin-bottom:24px;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand);display:block}
h1.hero-title{
  font-size:clamp(32px,5vw,58px);line-height:1.08;font-weight:900;letter-spacing:-.01em;
  margin-bottom:22px;max-width:14em;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:36em;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:20px}
.hero-note{font-size:13px;color:var(--ink-3)}
.hero-panel{
  background:linear-gradient(160deg,rgba(22,28,20,.94),rgba(16,22,14,.86));
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-2);backdrop-filter:blur(6px);
}
.hero-panel h3{font-size:17px;font-weight:800;margin-bottom:6px}
.hero-panel .panel-sub{font-size:13px;color:var(--ink-3);margin-bottom:20px}
.panel-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 0;border-bottom:1px dashed var(--line-2);
}
.panel-row:last-of-type{border-bottom:0}
.panel-row .k{font-size:14px;color:var(--ink-2)}
.panel-row .v{font-size:15px;font-weight:700;color:var(--ink)}
.panel-row .v em{font-style:normal;color:var(--amber)}
.panel-btn{margin-top:16px}

/* 数据徽章条 */
.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  padding:30px 0 4px;
}
.stat{
  display:flex;align-items:center;gap:14px;padding:16px 20px;border-radius:var(--pill);
  background:rgba(255,255,255,.03);border:1px solid var(--line-2);
}
.stat i{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal);flex:0 0 auto;display:block}
.stat-num{font-size:26px;font-weight:900;color:var(--amber);line-height:1;font-variant-numeric:tabular-nums}
.stat-num small{font-size:13px;font-weight:700;margin-left:2px}
.stat-label{font-size:13px;color:var(--ink-2);line-height:1.5}

/* ===================== 时间线 ===================== */
.timeline{position:relative;padding-left:36px}
.timeline::before{
  content:"";position:absolute;left:5px;top:12px;bottom:12px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),rgba(33,230,180,.35) 55%,rgba(33,230,180,0));
}
.tl-item{position:relative;margin-bottom:20px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-36px;top:26px;width:12px;height:12px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px rgba(198,255,61,.16),0 0 16px rgba(198,255,61,.6);
}
.tl-item::after{
  content:"";position:absolute;left:-22px;top:31px;width:22px;height:1px;background:var(--line);
}
.tl-card{
  display:flex;align-items:center;gap:20px;padding:22px 26px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line-2);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.tl-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--glow)}
.tl-time{
  flex:0 0 auto;padding:6px 14px;border-radius:var(--pill);font-size:13px;font-weight:800;
  color:#04231B;background:linear-gradient(120deg,#21E6B4,#7FF7D8);font-variant-numeric:tabular-nums;
}
.tl-body{flex:1 1 auto;min-width:0}
.tl-body h3{font-size:19px;font-weight:800;margin-bottom:4px}
.tl-body p{font-size:13px;color:var(--ink-3)}
.tl-link{
  flex:0 0 auto;width:42px;height:42px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink-2);
}
.tl-link:hover{color:#0A0D0A;background:var(--grad-brand);border-color:transparent}
.tl-link svg{width:16px;height:16px}

/* ===================== 亮点 / 嘉宾 ===================== */
.feat-row{margin-bottom:0}
.feat-card{
  background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-lg);
  overflow:hidden;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;height:100%;
}
.feat-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--glow)}
.feat-main__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0C120A}
.feat-main__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.feat-card:hover .feat-main__media img{transform:scale(1.04)}
.feat-main__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,10,0) 45%,rgba(10,13,10,.82));
}
.feat-main__body{padding:26px 28px 30px}
.feat-main__body h3{font-size:22px;font-weight:800;margin-bottom:8px}
.feat-role{font-size:13px;color:var(--brand);font-weight:700;margin-bottom:12px}
.feat-main__body p{color:var(--ink-2);font-size:15px}
.feat-col{display:flex;flex-direction:column;gap:20px;height:100%}
.feat-mini{
  display:flex;gap:18px;align-items:center;padding:20px 22px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line-2);flex:1 1 auto;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.feat-mini:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--glow)}
.feat-mini img{
  width:74px;height:74px;border-radius:var(--r-sm);object-fit:cover;flex:0 0 auto;
  background:#0C120A;border:1px solid var(--line-2);
}
.feat-mini h4{font-size:17px;font-weight:800;margin-bottom:5px}
.feat-mini p{font-size:13px;color:var(--ink-2);line-height:1.7}
.feat-mini span{font-size:12px;color:var(--teal);font-weight:700;display:block;margin-top:6px}

/* ===================== 票种 ===================== */
.tickets{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;padding-top:26px}
.ticket{
  position:relative;display:flex;flex-direction:column;gap:20px;
  background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-lg);
  padding:32px 28px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.ticket:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--sh-1)}
.ticket--rec{
  transform:scale(1.04) translateY(-12px);
  border:1px solid transparent;
  background:
    linear-gradient(var(--surface),var(--surface)) padding-box,
    var(--grad-brand) border-box;
  box-shadow:0 22px 54px rgba(198,255,61,.14);
}
.ticket--rec:hover{transform:scale(1.04) translateY(-16px)}
.rec-tag{
  position:absolute;top:-13px;left:28px;padding:5px 15px;border-radius:var(--pill);
  background:var(--grad-brand);color:#0A0D0A;font-size:12px;font-weight:900;letter-spacing:.03em;
}
.ticket h3{font-size:20px;font-weight:800}
.ticket-desc{font-size:13px;color:var(--ink-2);margin-top:-14px}
.ticket-price{display:flex;align-items:flex-end;gap:6px;line-height:1}
.ticket-price .amount{font-size:clamp(40px,6vw,56px);font-weight:900;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.ticket-price .unit{font-size:14px;color:var(--ink-3);padding-bottom:8px}
.ticket-list{display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.ticket-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);line-height:1.7}
.ticket-list svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;color:var(--brand)}
.ticket .btn{margin-top:6px}

/* ===================== 报名 CTA ===================== */
.signup{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,#C6FF3D,#21E6B4);
  color:#0A0D0A;padding:52px 48px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
}
.signup::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(10,13,10,.16),rgba(10,13,10,0) 68%);
}
.signup h2{font-size:clamp(26px,3.2vw,38px);font-weight:900;line-height:1.2;margin-bottom:16px;color:#08120A}
.signup p{font-size:15px;line-height:1.8;color:rgba(8,18,10,.78);max-width:32em}
.signup-points{display:flex;flex-direction:column;gap:12px;margin-top:26px}
.signup-points li{display:flex;gap:10px;align-items:center;font-size:14px;font-weight:600;color:#0A1508}
.signup-points svg{width:17px;height:17px;flex:0 0 auto}
.form-card{position:relative;z-index:2;background:rgba(10,13,10,.9);border-radius:var(--r-md);padding:28px;box-shadow:var(--sh-2)}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:13px;font-weight:700;color:var(--ink-2);margin-bottom:8px}
.form-row input,.form-row select{
  width:100%;height:50px;padding:0 16px;border-radius:var(--r-sm);
  background:rgba(10,13,10,.55);border:1.5px solid var(--line);
  color:var(--ink);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
  appearance:none;-webkit-appearance:none;
}
.form-row select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23A7B29C' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;background-size:12px;
}
.form-row input:focus,.form-row select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(198,255,61,.16);
}
.form-row input::placeholder{color:var(--ink-3)}
.form-msg{display:none;align-items:flex-start;gap:8px;font-size:13px;line-height:1.6;margin-bottom:14px;padding:11px 14px;border-radius:var(--r-xs)}
.form-msg.is-error{display:flex;color:#FFB4A0;background:rgba(255,106,43,.12);border:1px solid rgba(255,106,43,.42)}
.form-msg.is-ok{display:flex;color:#BFF7A8;background:rgba(33,230,180,.12);border:1px solid rgba(33,230,180,.4)}
.form-msg svg{width:16px;height:16px;flex:0 0 auto;margin-top:3px}
.form-tip{font-size:12px;color:var(--ink-3);margin-top:12px;line-height:1.6}

/* ===================== 资讯列表 ===================== */
.link-more{font-size:14px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--teal);transform:translateX(3px)}
.news-card{
  display:flex;flex-direction:column;height:100%;background:var(--surface);
  border:1px solid var(--line-2);border-radius:var(--r-md);overflow:hidden;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--sh-1)}
.news-thumb{display:block;position:relative;aspect-ratio:16/9;overflow:hidden;background:#0C120A}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.chip{
  align-self:flex-start;padding:4px 13px;border-radius:var(--pill);font-size:12px;font-weight:700;
  color:var(--brand);background:rgba(198,255,61,.1);border:1px solid var(--line);
}
.news-title{font-size:17px;font-weight:800;line-height:1.5}
.news-title a{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title a{color:var(--brand)}
.news-desc{
  font-size:13.5px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-3);margin-top:auto;font-variant-numeric:tabular-nums}
.news-meta svg{width:14px;height:14px}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;border:1px dashed var(--line);
  border-radius:var(--r-lg);background:rgba(255,255,255,.02);
}
.empty-state svg{width:44px;height:44px;color:var(--ink-3);margin:0 auto 18px}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px}

/* ===================== FAQ ===================== */
.faq-wrap{max-width:920px;margin:0 auto}
ul.accordion.faq{
  background:transparent;border:0;margin:0;
}
ul.accordion.faq .accordion-item{
  background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-sm);
  margin-bottom:12px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
ul.accordion.faq .accordion-item.is-active{border-color:var(--line);box-shadow:var(--glow)}
ul.accordion.faq .accordion-title{
  display:flex;align-items:center;gap:14px;padding:20px 24px;background:transparent;
  border:0;color:var(--ink);font-size:16px;font-weight:700;line-height:1.6;
  transition:color .2s ease;
}
ul.accordion.faq .accordion-title::before{display:none}
ul.accordion.faq .accordion-title:hover{color:var(--brand)}
ul.accordion.faq .accordion-title .q-idx{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;background:rgba(198,255,61,.12);
  color:var(--brand);font-size:13px;font-weight:900;display:flex;align-items:center;justify-content:center;
}
ul.accordion.faq .accordion-title::after{
  content:"";position:absolute;right:24px;top:50%;
}
ul.accordion.faq .accordion-title .plus{
  margin-left:auto;width:24px;height:24px;position:relative;flex:0 0 auto;
  transition:transform .3s ease;
}
ul.accordion.faq .accordion-title .plus::before,
ul.accordion.faq .accordion-title .plus::after{
  content:"";position:absolute;background:var(--ink-2);border-radius:2px;transition:background .2s ease;
}
ul.accordion.faq .accordion-title .plus::before{left:5px;right:5px;top:11px;height:2px}
ul.accordion.faq .accordion-title .plus::after{top:5px;bottom:5px;left:11px;width:2px}
ul.accordion.faq .accordion-item.is-active .accordion-title{color:var(--brand)}
ul.accordion.faq .accordion-item.is-active .accordion-title .plus{transform:rotate(45deg)}
ul.accordion.faq .accordion-item.is-active .accordion-title .plus::before,
ul.accordion.faq .accordion-item.is-active .accordion-title .plus::after{background:var(--brand)}
ul.accordion.faq .accordion-content{
  background:transparent;border:0;color:var(--ink-2);font-size:15px;line-height:1.85;
  padding:0 24px 24px 66px;
}
ul.accordion.faq .accordion-content p{margin:0}

/* ===================== 场馆文字墙 + 次级 CTA ===================== */
.venue-wall{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.venue-pill{
  padding:11px 20px;border-radius:var(--pill);border:1px solid var(--line-2);
  font-size:14px;color:var(--ink-2);background:rgba(255,255,255,.02);
  transition:all .22s ease;
}
.venue-pill:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px)}
.mini-cta{
  margin-top:56px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(198,255,61,.09),rgba(33,230,180,.05));
  padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.mini-cta h3{font-size:22px;font-weight:800;margin-bottom:8px}
.mini-cta p{font-size:14px;color:var(--ink-2)}

/* ===================== 页脚 ===================== */
.site-footer{
  position:relative;background:var(--bg-0);border-top:1px solid var(--line-2);
  padding:72px 0 28px;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,rgba(198,255,61,0),var(--brand),var(--teal),rgba(33,230,180,0));
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:44px;margin-bottom:52px}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.foot-brand .brand-text{font-size:17px}
.foot-about{font-size:14px;color:var(--ink-2);line-height:1.8;max-width:30em}
.socials{display:flex;gap:10px;margin-top:22px}
.socials a{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;color:var(--ink-2);
}
.socials a:hover{color:#0A0D0A;background:var(--grad-brand);border-color:transparent;transform:translateY(-2px)}
.socials svg{width:17px;height:17px}
.foot-col h4{font-size:14px;font-weight:800;letter-spacing:.02em;margin-bottom:18px;color:var(--ink)}
.foot-list{display:flex;flex-direction:column;gap:12px}
.foot-list a,.foot-list span{font-size:14px;color:var(--ink-2);line-height:1.6;display:inline-block}
.foot-list a:hover{color:var(--brand);transform:translateX(2px)}
.foot-contact li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:12px}
.foot-contact svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;color:var(--brand)}
.foot-bottom{
  border-top:1px solid var(--line-2);padding-top:24px;display:flex;
  align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--ink-3);
}
.foot-bottom a:hover{color:var(--brand)}

/* ===================== 响应式 ===================== */
@media screen and (max-width:1024px){
  .wrap{padding:0 24px}
  .sec{padding:84px 0}
  .nav-menu,.nav-actions .btn-cta,.nav-actions .icon-btn{display:none}
  .burger{display:block}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:68px 0 60px}
  .hero-panel{max-width:560px}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .tickets{grid-template-columns:1fr;gap:20px;padding-top:8px}
  .ticket--rec{transform:none}
  .ticket--rec:hover{transform:translateY(-4px)}
  .signup{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .feat-col{flex-direction:row}
  .feat-mini{flex-direction:column;align-items:flex-start;text-align:left}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media screen and (max-width:640px){
  .wrap{padding:0 20px}
  .sec{padding:60px 0}
  .sec-head{margin-bottom:32px}
  .nav-bar{height:66px}
  .brand-text{font-size:16px}
  .hero-inner{padding:56px 0 48px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .stats-bar{grid-template-columns:1fr;gap:12px;padding:22px 0 0}
  .timeline{padding-left:28px}
  .tl-item::before{left:-28px;top:22px}
  .tl-item::after{left:-18px;width:18px;top:27px}
  .tl-card{flex-direction:column;align-items:flex-start;gap:12px;padding:20px}
  .tl-link{display:none}
  .feat-col{flex-direction:column}
  .feat-mini{flex-direction:row;align-items:center}
  .feat-main__body{padding:22px}
  .signup{padding:32px 22px;border-radius:var(--r-md)}
  .form-card{padding:22px}
  ul.accordion.faq .accordion-content{padding:0 20px 22px 20px}
  ul.accordion.faq .accordion-title{padding:18px 20px;font-size:15px}
  .mini-cta{padding:26px 22px}
  .mini-cta .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --bg-0:#0A0D0A;
  --bg-1:#11160F;
  --surface:#161C14;
  --surface-2:#1E2619;
  --brand:#C6FF3D;
  --teal:#21E6B4;
  --orange:#FF6A2B;
  --amber:#FFB020;
  --ink:#EEF4E7;
  --ink-2:#A7B29C;
  --ink-3:#6E7A66;
  --paper:#F5F8EF;
  --paper-ink:#16201A;
  --line:rgba(198,255,61,.14);
  --line-2:rgba(255,255,255,.08);
  --r-xs:8px;
  --r-sm:14px;
  --r-md:22px;
  --r-lg:28px;
  --pill:999px;
  --sh-1:0 6px 24px rgba(0,0,0,.45);
  --sh-2:0 18px 48px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(198,255,61,.35), 0 8px 32px rgba(198,255,61,.18);
  --grad:linear-gradient(120deg,#C6FF3D,#21E6B4);
  --grad-cta:linear-gradient(120deg,#FF7A2F,#FF4D2B);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  color:var(--ink);
  background:var(--bg-1);
  background-image:
    radial-gradient(900px 420px at 10% -10%, rgba(198,255,61,.08), transparent 70%),
    radial-gradient(800px 400px at 90% 0%, rgba(33,230,180,.07), transparent 72%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--teal);text-decoration:none;transition:color .22s ease, transform .22s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(10,13,10,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-2);
}
.site-header::after{
  content:"";
  display:block;
  height:1px;
  background:linear-gradient(90deg,var(--brand),var(--teal),transparent 78%);
  opacity:.75;
}
.nav-bar{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-weight:800;
  font-size:19px;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--grad);
  color:#0A0D0A;
  box-shadow:0 6px 20px rgba(198,255,61,.24);
  flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{background:linear-gradient(120deg,#EEF4E7,#C6FF3D);-webkit-background-clip:text;background-clip:text;color:transparent;}
.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  border-radius:var(--r-sm);
  color:var(--ink-2);
  font-size:16px;
  font-weight:500;
  position:relative;
}
.nav-link:hover{color:var(--brand);transform:translateY(-2px);}
.nav-link.is-active{color:var(--ink);font-weight:700;text-shadow:0 0 18px rgba(198,255,61,.45);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:8px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--ink-2);
  cursor:pointer;
  transition:all .22s ease;
}
.icon-btn svg{width:19px;height:19px;}
.icon-btn:hover{color:var(--brand);border-color:rgba(198,255,61,.45);background:rgba(198,255,61,.08);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--pill);
  font-size:16px;
  font-weight:700;
  letter-spacing:0;
  cursor:pointer;
  transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
}
.btn-sm{min-height:42px;padding:0 20px;font-size:15px;}
.btn-cta{
  background:var(--grad-cta);
  color:#20120A;
  box-shadow:0 10px 28px rgba(255,77,43,.28);
}
.btn-cta:hover{color:#20120A;transform:translateY(-2px);box-shadow:0 16px 36px rgba(255,77,43,.36);}
.btn-primary{background:var(--grad);color:#0A0D0A;box-shadow:0 10px 28px rgba(198,255,61,.22);}
.btn-primary:hover{color:#0A0D0A;transform:translateY(-2px);box-shadow:0 16px 38px rgba(198,255,61,.3);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:rgba(198,255,61,.5);color:var(--brand);transform:translateY(-2px);}
.btn-dark{background:#0A0D0A;color:var(--ink);}
.btn-dark:hover{color:var(--brand);transform:translateY(-2px);}
.burger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--brand);transition:transform .25s ease, opacity .25s ease;}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 抽屉 */
.drawer{
  position:fixed;
  top:0;right:0;
  height:100%;
  width:310px;
  max-width:86vw;
  background:var(--bg-0);
  border-left:2px solid transparent;
  border-image:var(--grad) 1;
  z-index:80;
  padding:26px 24px;
  transform:translateX(102%);
  transition:transform .3s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer h3{font-size:15px;color:var(--ink-3);font-weight:700;margin-bottom:14px;letter-spacing:.04em;}
.drawer a{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 16px;
  border-radius:var(--r-sm);
  color:var(--ink);
  font-size:17px;
  font-weight:500;
  border:1px solid transparent;
}
.drawer a:hover,.drawer a.is-active{background:rgba(198,255,61,.1);border-color:rgba(198,255,61,.28);color:var(--brand);}
.drawer .drawer-cta{margin-top:22px;width:100%;}
.drawer-close{
  position:absolute;top:18px;right:18px;
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-2);background:transparent;color:var(--ink-2);
  font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{color:var(--brand);border-color:rgba(198,255,61,.4);}
.overlay{
  position:fixed;inset:0;
  background:rgba(4,6,4,.68);
  opacity:0;visibility:hidden;
  transition:opacity .3s ease;
  z-index:70;
}
.overlay.is-open{opacity:1;visibility:visible;}

/* ============ 面包屑 ============ */
.crumbs-bar{padding:22px 0 0;}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13px;
  line-height:1.7;
  color:var(--ink-3);
}
.crumbs a{color:var(--ink-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line-2);}
.crumbs .current{color:var(--ink-2);}

/* ============ 文章头 ============ */
.article-hero{padding:26px 0 0;}
.article-head{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(22,28,20,.96), rgba(10,13,10,.96)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:38px 40px 34px;
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.article-head::before{
  content:"";
  position:absolute;
  left:0;top:34px;bottom:34px;
  width:3px;
  border-radius:3px;
  background:var(--grad);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.06em;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 12px rgba(198,255,61,.8);}
.article-head h1{
  font-size:clamp(26px,3.2vw,46px);
  line-height:1.2;
  font-weight:900;
  max-width:22em;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:var(--pill);
  border:1px solid var(--line-2);
  background:rgba(255,255,255,.04);
  font-size:13px;
  line-height:1.6;
  color:var(--ink-2);
}
.pill svg{width:14px;height:14px;flex:0 0 auto;}
.pill-brand{border-color:rgba(198,255,61,.35);background:rgba(198,255,61,.1);color:var(--brand);font-weight:700;}
.pill-teal{border-color:rgba(33,230,180,.3);background:rgba(33,230,180,.09);color:var(--teal);font-weight:700;}

/* ============ 布局 ============ */
.page-main{padding:44px 0 96px;}
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:34px;
  align-items:start;
}

/* ============ 纸面正文 ============ */
.paper-card{
  background:var(--paper);
  color:var(--paper-ink);
  border-radius:var(--r-lg);
  padding:52px 56px;
  box-shadow:var(--sh-2);
  border:1px solid rgba(255,255,255,.06);
}
.article-body{
  max-width:76ch;
  margin:0 auto;
  font-size:17px;
  line-height:1.9;
  color:var(--paper-ink);
}
.article-body > *:first-child{margin-top:0 !important;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  margin:2.2em 0 .8em;
  padding-left:16px;
  font-size:clamp(21px,2.2vw,27px);
  line-height:1.4;
  font-weight:800;
  color:#101A12;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:4px;
  border-radius:3px;
  background:linear-gradient(180deg,#7FBF12,#0FAE84);
}
.article-body h3{margin:1.7em 0 .6em;font-size:20px;font-weight:800;color:#101A12;}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:800;color:#101A12;}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.6em;}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.72em;
  width:8px;height:8px;
  border-radius:2px;
  background:#8CCB16;
}
.article-body ol{list-style:none;counter-reset:art;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:.6em;counter-increment:art;}
.article-body ol li::before{
  content:counter(art);
  position:absolute;left:0;top:.18em;
  width:21px;height:21px;
  border-radius:6px;
  background:rgba(140,203,22,.18);
  color:#4A7A0C;
  font-size:12px;
  font-weight:800;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  border-left:4px solid #0FAE84;
  border-radius:0 14px 14px 0;
  background:rgba(15,174,132,.08);
  color:#223028;
  font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{
  color:#0B7A5E;
  border-bottom:1px dashed rgba(11,122,94,.6);
}
.article-body a:hover{color:#055C45;border-bottom-style:solid;}
.article-body img{
  width:100%;
  border-radius:18px;
  margin:1.6em auto;
  box-shadow:0 12px 30px rgba(22,32,26,.16);
}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:#6B7A6E;
}
.article-body table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  margin:1.6em 0;
  border-radius:16px;
  overflow:hidden;
  border:1px solid rgba(22,32,26,.14);
  font-size:15px;
  display:table;
}
.article-body thead th{
  background:rgba(22,32,26,.06);
  color:#101A12;
  font-weight:800;
  text-align:left;
  padding:13px 16px;
  border-bottom:2px solid #C6FF3D;
}
.article-body td{
  padding:12px 16px;
  border-bottom:1px solid rgba(22,32,26,.1);
  font-variant-numeric:tabular-nums;
}
.article-body tbody tr:nth-child(even){background:rgba(22,32,26,.045);}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body pre{
  overflow-x:auto;
  padding:18px 20px;
  border-radius:16px;
  background:#101A12;
  color:var(--ink);
  font-size:14px;
  line-height:1.7;
}
.article-body hr{border:none;height:1px;background:rgba(22,32,26,.14);margin:2.2em 0;}
.article-body strong{font-weight:800;color:#101A12;}

/* 空态 */
.empty-state{
  text-align:center;
  padding:72px 24px;
  border-radius:var(--r-md);
  border:1px dashed var(--line);
  background:rgba(255,255,255,.03);
}
.empty-state .empty-ico{
  width:62px;height:62px;
  margin:0 auto 20px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:rgba(198,255,61,.08);
  color:var(--brand);
}
.empty-state .empty-ico svg{width:26px;height:26px;}
.empty-state h2{font-size:22px;font-weight:800;margin-bottom:12px;}
.empty-state p{color:var(--ink-2);max-width:34em;margin:0 auto 24px;}

/* ============ 文末区 ============ */
.article-foot{margin-top:40px;display:flex;flex-wrap:wrap;gap:26px;justify-content:space-between;align-items:flex-start;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-row .label{font-size:13px;color:var(--ink-3);}
.tag{
  display:inline-flex;align-items:center;
  min-height:34px;
  padding:0 16px;
  border-radius:var(--pill);
  border:1px solid var(--line);
  background:rgba(198,255,61,.06);
  color:var(--ink-2);
  font-size:13px;
}
.tag:hover{color:var(--brand);border-color:rgba(198,255,61,.45);transform:translateY(-2px);}
.share-row{display:flex;align-items:center;gap:10px;}
.share-row .label{font-size:13px;color:var(--ink-3);}
.share-row a{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-2);
  color:var(--ink-2);
}
.share-row a svg{width:16px;height:16px;}
.share-row a:hover{color:var(--brand);border-color:rgba(198,255,61,.45);background:rgba(198,255,61,.08);}

.pager{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  margin-top:34px;
}
.pager a{
  display:block;
  padding:22px 24px;
  border-radius:var(--r-md);
  border:1px solid var(--line-2);
  background:var(--surface);
  color:var(--ink);
  transition:all .25s ease;
}
.pager a:hover{border-color:rgba(198,255,61,.45);box-shadow:var(--glow);transform:translateY(-3px);color:var(--ink);}
.pager .dir{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:8px;}
.pager .dir svg{width:15px;height:15px;}
.pager .ttl{font-size:16px;font-weight:700;line-height:1.55;}
.pager .next{text-align:right;}
.pager .next .dir{justify-content:flex-end;}

/* ============ 侧栏 ============ */
.side{
  position:sticky;
  top:104px;
  display:flex;
  flex-direction:column;
  gap:22px;
}
.side-card{
  border-radius:var(--r-md);
  border:1px solid var(--line-2);
  background:var(--surface);
  padding:24px;
  box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:16px;
  font-weight:800;
  margin-bottom:16px;
  display:flex;align-items:center;gap:9px;
}
.side-card h3::before{content:"";width:5px;height:16px;border-radius:3px;background:var(--grad);}
.hot-list li + li{margin-top:6px;}
.hot-list a{
  display:flex;
  gap:12px;
  padding:10px 0;
  border-bottom:1px dashed var(--line-2);
  color:var(--ink-2);
  font-size:14.5px;
  line-height:1.7;
}
.hot-list li:last-child a{border-bottom:none;}
.hot-list a:hover{color:var(--brand);transform:translateX(2px);}
.hot-list .idx{
  flex:0 0 auto;
  width:22px;height:22px;
  border-radius:7px;
  background:rgba(198,255,61,.12);
  color:var(--brand);
  font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  margin-top:3px;
  font-variant-numeric:tabular-nums;
}
.side-cta{
  border-radius:var(--r-md);
  padding:26px 24px;
  background:var(--grad);
  color:#0A0D0A;
  box-shadow:0 16px 40px rgba(198,255,61,.18);
}
.side-cta h3{color:#0A0D0A;font-size:18px;font-weight:900;margin-bottom:8px;}
.side-cta p{font-size:14px;line-height:1.75;color:rgba(10,13,10,.78);margin-bottom:18px;}
.side-cta .btn{width:100%;background:#0A0D0A;color:var(--ink);}
.side-cta .btn:hover{color:var(--brand);}
.side-stats{display:flex;gap:18px;margin-top:18px;}
.side-stats div{flex:1;}
.side-stats .n{font-size:26px;font-weight:900;line-height:1;color:#0A0D0A;font-variant-numeric:tabular-nums;}
.side-stats .l{font-size:12px;color:rgba(10,13,10,.7);margin-top:5px;}

/* ============ 相关推荐 ============ */
.sec{margin-top:88px;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:30px;
  flex-wrap:wrap;
}
.sec-head h2{font-size:clamp(24px,3vw,36px);line-height:1.2;font-weight:900;}
.sec-head p{color:var(--ink-2);font-size:15px;margin-top:10px;max-width:52em;}
.link-more{
  display:inline-flex;align-items:center;gap:7px;
  font-size:15px;font-weight:700;color:var(--brand);
}
.link-more svg{width:16px;height:16px;}
.link-more:hover{gap:11px;}

.rec-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.rec-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line-2);
  background:var(--surface);
  transition:transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.rec-card:hover{transform:translateY(-5px);border-color:rgba(198,255,61,.4);box-shadow:var(--glow);}
.rec-thumb{
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(140deg,#1B2318,#0F140E);
  overflow:hidden;
}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.rec-badge{
  position:absolute;top:12px;left:12px;
  padding:5px 12px;
  border-radius:var(--pill);
  background:rgba(10,13,10,.72);
  border:1px solid rgba(198,255,61,.35);
  color:var(--brand);
  font-size:12px;font-weight:700;
  backdrop-filter:blur(6px);
}
.rec-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.rec-body h3{font-size:17px;line-height:1.55;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-card:hover .rec-body h3{color:var(--brand);}
.rec-body p{
  color:var(--ink-2);
  font-size:14px;
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rec-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:7px;
  font-size:13px;
  color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.rec-meta svg{width:14px;height:14px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-acc{margin:0;border:none;background:transparent;}
.faq-acc .accordion-item{
  border:1px solid var(--line-2) !important;
  border-radius:var(--r-sm) !important;
  background:var(--surface) !important;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .25s ease, box-shadow .25s ease;
}
.faq-acc .accordion-item.is-active{border-color:rgba(198,255,61,.4) !important;box-shadow:var(--glow);}
.faq-acc .accordion-title{
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px 24px !important;
  font-size:16.5px;
  font-weight:700;
  color:var(--ink) !important;
  background:transparent !important;
  border:none !important;
  line-height:1.6;
}
.faq-acc .accordion-title::before{
  content:"";
  flex:0 0 auto;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(198,255,61,.6);
}
.faq-acc .accordion-title::after{
  content:"+";
  position:absolute;
  right:24px;
  font-size:20px;
  font-weight:700;
  color:var(--ink-3);
  transition:transform .25s ease, color .25s ease;
}
.faq-acc .accordion-title{position:relative;}
.faq-acc .accordion-item.is-active .accordion-title::after{transform:rotate(45deg);color:var(--brand);}
.faq-acc .accordion-item.is-active .accordion-title{color:var(--brand) !important;}
.faq-acc .accordion-content{
  padding:0 24px 22px 46px !important;
  background:transparent !important;
  border:none !important;
  color:var(--ink-2) !important;
  font-size:15.5px;
  line-height:1.85;
}
.faq-acc .accordion-content p{margin:0;}

/* ============ CTA 条 ============ */
.cta-band{
  margin-top:88px;
  border-radius:var(--r-lg);
  padding:46px 48px;
  background:var(--grad);
  color:#0A0D0A;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  flex-wrap:wrap;
  box-shadow:0 22px 60px rgba(33,230,180,.18);
}
.cta-band h2{color:#0A0D0A;font-size:clamp(22px,2.6vw,32px);font-weight:900;line-height:1.25;}
.cta-band p{color:rgba(10,13,10,.78);font-size:15.5px;margin-top:10px;max-width:44em;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-band .btn-primary{background:#0A0D0A;color:var(--ink);box-shadow:0 12px 30px rgba(10,13,10,.28);}
.cta-band .btn-primary:hover{color:var(--brand);}
.cta-band .btn-ghost{border-color:rgba(10,13,10,.4);color:#0A0D0A;}
.cta-band .btn-ghost:hover{border-color:#0A0D0A;color:#0A0D0A;background:rgba(10,13,10,.08);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;
  border-top:1px solid var(--line-2);
  background:var(--bg-0);
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,var(--brand),var(--teal) 45%,transparent 85%);
  opacity:.7;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:62px 0 40px;
}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--ink);}
.foot-about{color:var(--ink-2);font-size:14.5px;line-height:1.8;margin-top:16px;max-width:30em;}
.socials{display:flex;gap:10px;margin-top:20px;}
.socials a{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-2);
  color:var(--ink-2);
}
.socials a svg{width:17px;height:17px;}
.socials a:hover{color:var(--brand);border-color:rgba(198,255,61,.45);background:rgba(198,255,61,.08);}
.foot-col h4{font-size:15px;font-weight:800;color:var(--ink);margin-bottom:18px;}
.foot-list{display:flex;flex-direction:column;gap:12px;}
.foot-list a{color:var(--ink-2);font-size:14.5px;}
.foot-list a:hover{color:var(--brand);transform:translateX(2px);}
.foot-contact{display:flex;flex-direction:column;gap:14px;}
.foot-contact li{display:flex;gap:10px;color:var(--ink-2);font-size:14.5px;line-height:1.7;}
.foot-contact svg{width:17px;height:17px;flex:0 0 auto;margin-top:4px;color:var(--brand);}
.foot-bottom{
  border-top:1px solid var(--line-2);
  padding:20px 0 26px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--ink-3);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .wrap{padding:0 24px;}
  .nav-menu{display:none;}
  .burger{display:flex;}
  .nav-actions .btn-sm{display:none;}
  .layout{grid-template-columns:minmax(0,1fr);}
  .side{position:static;flex-direction:row;flex-wrap:wrap;}
  .side > *{flex:1 1 280px;}
  .paper-card{padding:36px 30px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px;padding:50px 0 32px;}
  .sec{margin-top:68px;}
  .cta-band{margin-top:68px;padding:36px 30px;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .wrap{padding:0 20px;}
  .nav-bar{min-height:68px;gap:14px;}
  .brand{font-size:17px;}
  .brand-mark{width:32px;height:32px;border-radius:10px;}
  .article-head{padding:28px 22px 26px;border-radius:var(--r-md);}
  .article-head::before{top:26px;bottom:26px;}
  .paper-card{padding:26px 20px;border-radius:var(--r-md);}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body table{font-size:14px;display:block;overflow-x:auto;white-space:nowrap;}
  .rec-grid{grid-template-columns:minmax(0,1fr);}
  .pager{grid-template-columns:minmax(0,1fr);}
  .pager .next{text-align:left;}
  .pager .next .dir{justify-content:flex-start;}
  .foot-grid{grid-template-columns:1fr;}
  .cta-band{border-radius:var(--r-md);padding:30px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .side{flex-direction:column;}
  .side > *{flex:1 1 auto;}
  .faq-acc .accordion-content{padding-left:24px !important;}
  .sec{margin-top:56px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A0D0A;--bg-1:#11160F;--surface:#161C14;--surface-2:#1E2619;
  --brand:#C6FF3D;--teal:#21E6B4;--orange:#FF6A2B;--amber:#FFB020;
  --ink:#EEF4E7;--ink-2:#A7B29C;--ink-3:#6E7A66;
  --paper:#F5F8EF;--paper-ink:#16201A;
  --line:rgba(198,255,61,.14);--line-2:rgba(255,255,255,.08);
  --r-xs:8px;--r-sm:14px;--r-md:22px;--r-lg:28px;--pill:999px;
  --sh-1:0 6px 24px rgba(0,0,0,.45);--sh-2:0 18px 48px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(198,255,61,.35),0 8px 32px rgba(198,255,61,.18);
  --grad-brand:linear-gradient(120deg,#C6FF3D,#21E6B4);
  --grad-cta:linear-gradient(120deg,#FF7A2F,#FF4D2B);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-1);color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;font-weight:400;
  font-variant-numeric:tabular-nums;
  background-image:radial-gradient(1100px 520px at 82% -8%,rgba(198,255,61,.09),transparent 62%),
                   radial-gradient(900px 480px at 8% 12%,rgba(33,230,180,.07),transparent 60%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s ease,transform .22s ease,background-color .22s ease,border-color .22s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.wrap{padding:0 32px}}
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:100px 0}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--brand);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad-brand)}
.section-head{max-width:780px;margin-bottom:36px}
.section-head h2{font-size:clamp(26px,3.2vw,40px);line-height:1.2;font-weight:800;letter-spacing:-.01em;margin:12px 0 14px}
.section-head p{color:var(--ink-2);font-size:16px}
@media (min-width:1024px){.section-head{margin-bottom:48px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(10,13,10,.86);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--teal) 46%,transparent);opacity:.75}
.nav-bar{display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad-brand);color:#0A0D0A;box-shadow:0 0 0 1px rgba(198,255,61,.35)}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand:hover .brand-text{color:var(--brand)}
.nav-menu{display:none}
@media (min-width:1024px){
  .nav-menu{display:flex;align-items:center;gap:4px;margin-inline-start:14px}
}
.nav-link{display:inline-block;padding:10px 14px;font-size:15px;color:var(--ink-2);position:relative;border-radius:var(--pill)}
.nav-link:hover{color:var(--brand);transform:translateY(-2px)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  border-radius:2px;background:var(--grad-brand);box-shadow:0 0 12px rgba(198,255,61,.65)}
.nav-actions{margin-inline-start:auto;display:flex;align-items:center;gap:10px}
.icon-btn{width:42px;height:42px;border-radius:var(--pill);border:1px solid var(--line-2);
  display:grid;place-items:center;color:var(--ink-2)}
.icon-btn svg{width:19px;height:19px}
.icon-btn:hover{color:var(--brand);border-color:var(--line);background:rgba(198,255,61,.08)}
.burger{width:44px;height:44px;border-radius:14px;border:1px solid var(--line-2);
  display:grid;place-content:center;gap:5px}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--grad-brand);transition:transform .25s ease,opacity .2s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){.burger{display:none}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--pill);font-size:15px;font-weight:700;
  border:1.5px solid transparent;transition:transform .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease,background-color .22s ease;
  white-space:nowrap;line-height:1.2}
.btn svg{width:17px;height:17px}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-cta{background:var(--grad-cta);color:#14170F;box-shadow:0 10px 30px rgba(255,106,43,.26)}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(255,106,43,.4)}
.btn-primary{background:var(--grad-brand);color:#0A0D0A;box-shadow:0 10px 30px rgba(198,255,61,.2)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(198,255,61,.32)}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:rgba(198,255,61,.07)}
.btn-dark{background:#0F140E;color:var(--ink);border-color:rgba(10,13,10,.4)}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(10,13,10,.35)}

/* ---------- drawer ---------- */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:120;
  background:var(--bg-0);border-left:2px solid transparent;
  border-image:linear-gradient(180deg,var(--brand),var(--teal)) 1;
  transform:translateX(102%);transition:transform .3s ease;padding:22px 22px 30px;
  display:flex;flex-direction:column;gap:22px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(6,8,6,.66);z-index:110;opacity:0;
  pointer-events:none;transition:opacity .3s ease}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;color:var(--ink-2)}
.drawer-close:hover{color:var(--brand);border-color:var(--line)}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-link{display:block;padding:14px 16px;border-radius:var(--r-sm);font-size:16px;color:var(--ink-2);border:1px solid transparent}
.drawer-link:hover{color:var(--brand);background:rgba(198,255,61,.06)}
.drawer-link.is-active{color:#0A0D0A;font-weight:700;background:var(--grad-brand)}
.drawer-note{font-size:13px;color:var(--ink-3);line-height:1.7}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-2)}
.page-hero::before{content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.6}
.page-hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(10,13,10,.96) 0%,rgba(10,13,10,.78) 46%,rgba(10,13,10,.36) 100%)}
.page-hero .wrap{position:relative;z-index:2;padding-top:56px;padding-bottom:56px}
@media (min-width:1024px){
  .page-hero .wrap{padding-top:84px;padding-bottom:78px}
}
.hero-inner{padding-left:20px;border-left:1px solid rgba(198,255,61,.55);max-width:760px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:var(--ink-3);opacity:.7}
.crumb .now{color:var(--ink-2)}
.hero-inner h1{font-size:clamp(30px,3.6vw,46px);line-height:1.14;font-weight:900;letter-spacing:-.01em;margin-bottom:16px}
.hero-sub{color:var(--ink-2);font-size:16px;line-height:1.85;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.stat-pill{display:flex;align-items:center;gap:12px;padding:12px 20px;border-radius:var(--pill);
  background:rgba(22,28,20,.72);border:1px solid var(--line);backdrop-filter:blur(6px)}
.stat-pill .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 12px rgba(198,255,61,.8);flex:0 0 auto}
.stat-pill b{font-size:22px;font-weight:900;color:var(--amber);letter-spacing:-.01em}
.stat-pill span{font-size:13px;color:var(--ink-2)}

/* ---------- zigzag ---------- */
.zigzag{margin-bottom:56px}
.zigzag:last-child{margin-bottom:0}
.zigzag .cell{padding:0}
.zigzag .zigzag-copy{padding-right:0}
.zigzag .zigzag-media-cell{padding-left:0;margin-top:24px}
@media (min-width:1024px){
  .zigzag .zigzag-copy{padding-right:44px}
  .zigzag .zigzag-media-cell{padding-left:44px;margin-top:0}
  .zigzag.is-flip .zigzag-copy{padding-right:0;padding-left:44px}
  .zigzag.is-flip .zigzag-media-cell{padding-left:0;padding-right:44px}
  .zigzag.is-flip .zigzag-media-cell{order:-1}
  .zigzag.is-flip .zigzag-copy{order:2}
}
.zigzag-copy h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:800;letter-spacing:-.01em;margin:12px 0 14px}
.zigzag-copy p{color:var(--ink-2);margin-bottom:14px}
.checks{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink)}
.checks li svg{width:20px;height:20px;flex:0 0 auto;margin-top:3px;color:var(--brand)}
.zigzag-media{position:relative;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line-2);background:#101510;box-shadow:var(--sh-1)}
.zigzag-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.zigzag-media figcaption{position:absolute;left:16px;bottom:14px;right:16px;font-size:13px;color:var(--ink-2);
  background:rgba(10,13,10,.7);border:1px solid var(--line-2);border-radius:var(--pill);padding:6px 14px;backdrop-filter:blur(6px)}
.zigzag-media:hover{border-color:var(--line);box-shadow:var(--glow)}

/* ---------- steps ---------- */
.steps{display:grid;gap:18px;margin-top:36px}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:22px}}
.step{position:relative;padding:26px 24px;border-radius:var(--r-md);background:var(--surface);
  border:1px solid var(--line-2);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.step:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--glow)}
.step .num{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;
  background:var(--grad-brand);color:#0A0D0A;font-weight:900;font-size:15px;margin-bottom:14px}
.step h3{font-size:19px;font-weight:800;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.step::after{content:"";position:absolute;top:45px;right:-22px;width:22px;border-top:2px dashed rgba(198,255,61,.32)}
.step:last-child::after{display:none}
@media (max-width:1023px){.step::after{display:none}}

/* ---------- scroll cards ---------- */
.scroll-row{display:flex;gap:18px;overflow-x:auto;padding:6px 4px 18px;scroll-snap-type:x mandatory}
.scroll-row::-webkit-scrollbar{height:6px}
.scroll-row::-webkit-scrollbar-thumb{background:rgba(198,255,61,.3);border-radius:99px}
.scroll-card{flex:0 0 auto;width:280px;scroll-snap-align:start;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line-2);overflow:hidden;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.scroll-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--glow)}
.scroll-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.scroll-card .body{padding:20px 22px 24px}
.scroll-card h3{font-size:18px;font-weight:800;margin-bottom:8px}
.scroll-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.tagline{display:inline-block;font-size:12.5px;font-weight:700;color:var(--teal);
  border:1px solid rgba(33,230,180,.35);border-radius:var(--pill);padding:4px 12px;margin-bottom:10px}

/* ---------- accordion / faq ---------- */
.accordion{background:transparent;border:0;margin:0;max-width:900px}
.accordion-item{border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--surface);
  margin-bottom:12px;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease}
.accordion-item:hover{border-color:var(--line)}
.accordion-item.is-active{border-color:var(--line);box-shadow:var(--glow)}
.accordion-title{display:flex;align-items:center;gap:14px;padding:20px 24px;font-size:16.5px;font-weight:700;
  color:var(--ink);background:transparent;border:0}
.accordion-title::before{display:none}
.accordion-title .idx{font-size:13px;font-weight:800;color:var(--brand);border:1px solid var(--line);
  border-radius:var(--r-xs);padding:2px 8px;flex:0 0 auto}
.accordion-title .plus{margin-inline-start:auto;width:18px;height:18px;flex:0 0 auto;color:var(--ink-2);
  transition:transform .25s ease,color .25s ease}
.accordion-title .plus::before{content:"";display:block;width:100%;height:100%;
  background:
    linear-gradient(currentColor,currentColor) center/100% 2px no-repeat,
    linear-gradient(currentColor,currentColor) center/2px 100% no-repeat}
.accordion-item.is-active .accordion-title{color:var(--brand)}
.accordion-item.is-active .accordion-title .plus{transform:rotate(45deg);color:var(--brand)}
.accordion-content{padding:0 24px 22px;border:0!important;background:transparent;color:var(--ink-2);font-size:15.5px;line-height:1.85}

/* ---------- cta band ---------- */
.cta-band{background:var(--grad-brand);color:#0A0D0A;border-radius:var(--r-lg);
  padding:38px 28px;display:grid;gap:22px;align-items:center;box-shadow:0 20px 60px rgba(33,230,180,.16)}
@media (min-width:1024px){.cta-band{grid-template-columns:1.4fr .9fr;padding:48px 52px;gap:40px}}
.cta-band h2{font-size:clamp(24px,3vw,36px);font-weight:900;letter-spacing:-.01em;line-height:1.2;color:#0A0D0A}
.cta-band p{color:rgba(12,18,10,.78);font-size:15.5px;margin-top:12px}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-start}
@media (min-width:1024px){.cta-band .cta-actions{justify-content:flex-end}}

/* ---------- related links ---------- */
.rel-links{display:grid;gap:16px;margin-top:24px}
@media (min-width:768px){.rel-links{grid-template-columns:1fr 1fr}}
.rel-link{display:flex;align-items:center;gap:16px;padding:22px 24px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line-2);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.rel-link:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--glow)}
.rel-link .thumb{width:56px;height:56px;border-radius:16px;flex:0 0 auto;overflow:hidden;border:1px solid var(--line-2)}
.rel-link .thumb img{width:100%;height:100%;object-fit:cover}
.rel-link b{display:block;font-size:16.5px;font-weight:800;margin-bottom:4px}
.rel-link span{font-size:13.5px;color:var(--ink-2)}
.rel-link .arrow{margin-inline-start:auto;color:var(--brand);flex:0 0 auto}
.rel-link:hover b{color:var(--brand)}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line-2);position:relative;margin-top:24px;
  background:linear-gradient(180deg,rgba(22,28,20,.6),rgba(10,13,10,.95))}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--teal),transparent);opacity:.8}
.foot-grid{display:grid;gap:34px;padding:56px 0 36px}
@media (min-width:640px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 44px}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-about{font-size:14px;color:var(--ink-2);line-height:1.85;max-width:320px}
.foot-col h4{font-size:15px;font-weight:800;margin-bottom:16px;color:var(--ink)}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-list a{font-size:14px;color:var(--ink-2);display:inline-block}
.foot-list a:hover{color:var(--brand);transform:translateX(2px)}
.foot-contact{display:flex;flex-direction:column;gap:12px}
.foot-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);line-height:1.7}
.foot-contact svg{width:17px;height:17px;flex:0 0 auto;margin-top:3px;color:var(--brand)}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{width:40px;height:40px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;color:var(--ink-2)}
.socials a svg{width:18px;height:18px}
.socials a:hover{color:var(--brand);border-color:var(--line);background:rgba(198,255,61,.08)}
.foot-bottom{border-top:1px solid var(--line-2);padding:20px 0 32px;display:flex;flex-wrap:wrap;gap:8px 24px;
  justify-content:space-between;font-size:13px;color:var(--ink-3)}
.foot-bottom a:hover{color:var(--brand)}

/* roulang page: category2 */
:root{
  --bg-0:#0A0D0A; --bg-1:#11160F; --surface:#161C14; --surface-2:#1E2619;
  --brand:#C6FF3D; --teal:#21E6B4; --orange:#FF6A2B; --amber:#FFB020;
  --ink:#EEF4E7; --ink-2:#A7B29C; --ink-3:#6E7A66;
  --paper:#F5F8EF; --paper-ink:#16201A;
  --line:rgba(198,255,61,.14); --line-2:rgba(255,255,255,.08);
  --grad-brand:linear-gradient(120deg,#C6FF3D,#21E6B4);
  --grad-cta:linear-gradient(120deg,#FF7A2F,#FF4D2B);
  --r-xs:8px; --r-sm:14px; --r-md:22px; --r-lg:28px; --pill:999px;
  --sh-1:0 6px 24px rgba(0,0,0,.45); --sh-2:0 18px 48px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(198,255,61,.35), 0 8px 32px rgba(198,255,61,.18);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-1);color:var(--ink);font-family:var(--font);
  font-size:16.5px;line-height:1.85;font-weight:400;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,transform .2s ease,box-shadow .2s ease}
p{margin:0 0 1.15em}
ul{margin:0;padding:0;list-style:none}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em;line-height:1.2;margin:0}
.num{font-variant-numeric:tabular-nums}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:104px 0}
.section-sm{padding:72px 0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border:0;border-radius:var(--pill);
  font-size:15.5px;font-weight:800;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px}
.btn-block{width:100%}
.btn-cta{background:var(--grad-cta);color:#180B04;box-shadow:0 6px 20px rgba(255,90,40,.28)}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,90,40,.4);color:#180B04}
.btn-brand{background:var(--grad-brand);color:#0D1408;box-shadow:0 6px 22px rgba(198,255,61,.22)}
.btn-brand:hover{transform:translateY(-2px);box-shadow:var(--glow);color:#0D1408}
.btn-ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.btn-ghost:hover{color:var(--brand);box-shadow:inset 0 0 0 1px rgba(198,255,61,.45),0 8px 24px rgba(198,255,61,.12);transform:translateY(-2px)}
.btn-dark{background:var(--paper-ink);color:var(--paper)}
.btn-dark:hover{color:var(--brand);transform:translateY(-2px)}

/* ---------- 徽章 / 标签 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--pill);
  font-size:13px;font-weight:700;color:var(--ink-2);background:rgba(255,255,255,.04);
  box-shadow:inset 0 0 0 1px var(--line-2);
}
.chip-brand{color:#0D1408;background:var(--grad-brand);box-shadow:none}
.chip-dot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand)}
.stat-badge{
  display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border-radius:var(--pill);
  background:rgba(10,13,10,.55);box-shadow:inset 0 0 0 1px var(--line);backdrop-filter:blur(6px);
}
.stat-badge b{font-size:22px;font-weight:900;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1}
.stat-badge span{font-size:13px;color:var(--ink-2);font-weight:500}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,10,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--teal) 40%,transparent 88%);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:900;font-size:19px;letter-spacing:-.01em}
.brand-mark{
  display:grid;place-items:center;width:36px;height:36px;border-radius:11px;
  background:var(--grad-brand);color:#0D1408;box-shadow:0 6px 20px rgba(198,255,61,.24);
}
.brand-mark svg{width:20px;height:20px}
.brand:hover .brand-text{color:var(--brand)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-link{
  display:inline-block;padding:10px 15px;border-radius:var(--pill);
  font-size:15px;font-weight:700;color:var(--ink-2);position:relative;
}
.nav-link:hover{color:var(--brand);transform:translateY(-2px)}
.nav-link.is-active{color:var(--ink);text-shadow:0 0 14px rgba(198,255,61,.5)}
.nav-link.is-active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-brand);box-shadow:0 0 12px rgba(198,255,61,.6);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;
  background:rgba(255,255,255,.04);cursor:pointer;
  box-shadow:inset 0 0 0 1px var(--line-2);transition:color .2s,box-shadow .2s,transform .2s;
}
.icon-btn svg{width:20px;height:20px}
.icon-btn:hover{color:var(--brand);transform:translateY(-2px);box-shadow:inset 0 0 0 1px rgba(198,255,61,.4)}
.burger{
  display:none;width:46px;height:46px;border:0;border-radius:14px;background:rgba(255,255,255,.04);
  box-shadow:inset 0 0 0 1px var(--line-2);cursor:pointer;padding:0 12px;
  flex-direction:column;justify-content:center;gap:5px;
}
.burger span{display:block;height:2px;border-radius:2px;background:var(--brand);box-shadow:0 0 8px rgba(198,255,61,.6);transition:transform .25s ease,opacity .25s ease}
body.drawer-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.drawer-open .burger span:nth-child(2){opacity:0}
body.drawer-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- off-canvas 抽屉 ---------- */
.drawer{
  width:min(84vw,344px)!important;background:var(--bg-0)!important;
  padding:26px 22px 30px;box-shadow:var(--sh-2);
}
.drawer::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--teal) 55%,transparent);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}
.drawer-title{font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:.08em;margin:0}
.drawer-close{background:transparent;border:0;color:var(--ink-2);font-size:24px;line-height:1;cursor:pointer;padding:4px 8px;border-radius:10px}
.drawer-close:hover{color:var(--brand)}
.drawer-menu{display:flex;flex-direction:column;gap:8px;margin-bottom:22px}
.drawer-menu a{
  display:flex;align-items:center;min-height:52px;padding:0 16px;border-radius:var(--r-sm);
  font-weight:700;color:var(--ink-2);box-shadow:inset 0 0 0 1px var(--line-2);
}
.drawer-menu a:hover,.drawer-menu a.is-active{color:var(--brand);background:rgba(198,255,61,.09);box-shadow:inset 0 0 0 1px rgba(198,255,61,.35)}
.drawer-note{font-size:13px;color:var(--ink-3);line-height:1.7}

/* ---------- 搜索弹层 ---------- */
.search-modal{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-md);color:var(--ink);padding:30px}
.search-modal h3{font-size:20px;margin-bottom:16px}
.search-form{display:flex;gap:12px;flex-wrap:wrap}
.search-form input{
  flex:1 1 240px;min-height:50px;padding:0 18px;border-radius:var(--r-sm);
  background:rgba(10,13,10,.5);border:1.5px solid var(--line-2);
}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(198,255,61,.16)}
.search-modal .close-button{color:var(--ink-2);right:18px;top:16px}
.search-modal .close-button:hover{color:var(--brand)}

/* ---------- Hero ---------- */
.page-hero{position:relative;isolation:isolate;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(10,13,10,.95) 0%,rgba(10,13,10,.8) 44%,rgba(10,13,10,.38) 100%);
}
.hero-inner{padding:66px 0 58px;display:grid;gap:36px;align-items:center}
.hero-copy{position:relative;padding-left:26px;max-width:720px}
.hero-copy::before{
  content:"";position:absolute;left:0;top:6px;bottom:8px;width:2px;border-radius:2px;
  background:var(--grad-brand);box-shadow:0 0 18px rgba(198,255,61,.5);
}
.hero-kicker{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.hero-title{font-size:clamp(30px,4.2vw,50px);line-height:1.1;font-weight:900;margin-bottom:16px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-2);max-width:640px;margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;align-content:flex-start}
.hero-badges .stat-badge{flex:0 0 auto}

/* ---------- 板块标题 ---------- */
.sec-head{max-width:760px;margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand);margin-bottom:14px}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--grad-brand)}
.sec-title{font-size:clamp(25px,3.1vw,38px);line-height:1.22;margin-bottom:14px}
.sec-lead{font-size:16.5px;color:var(--ink-2);line-height:1.85;margin:0}

/* ---------- 图文交错 ---------- */
.split{margin-bottom:88px}
.split:last-child{margin-bottom:0}
.split-media{
  margin:0;border-radius:var(--r-md);overflow:hidden;position:relative;
  background:linear-gradient(140deg,#12170F,#1B2317);box-shadow:var(--sh-1);
}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md);box-shadow:inset 0 0 0 1px var(--line-2)}
.split-media figcaption{
  position:absolute;left:16px;bottom:16px;padding:7px 14px;border-radius:var(--pill);
  font-size:12.5px;color:var(--ink);background:rgba(10,13,10,.72);box-shadow:inset 0 0 0 1px var(--line);
}
.split h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:16px}
.split p{color:var(--ink-2);font-size:16.5px}
.split .chip{margin-bottom:14px}

.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink);line-height:1.75}
.check-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:6px;
  background:var(--grad-brand);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/13px no-repeat,var(--grad-brand);
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/13px no-repeat;
}

/* ---------- 课程分级选择器 ---------- */
.levels{background:linear-gradient(180deg,rgba(30,38,25,.55),rgba(17,22,15,.2));border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.level-list{display:grid;gap:14px}
.level-row{
  display:grid;grid-template-columns:96px 1fr auto;align-items:center;gap:22px;
  padding:20px 26px;border-radius:var(--r-md);background:var(--surface);
  box-shadow:inset 0 0 0 1px var(--line-2);transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
}
.level-row:hover{transform:translateY(-4px);background:var(--surface-2);box-shadow:var(--glow)}
.level-badge{
  display:grid;place-items:center;height:52px;border-radius:var(--r-sm);
  font-weight:900;font-size:17px;color:#0D1408;background:var(--grad-brand);
}
.level-main h3{font-size:20px;margin-bottom:6px}
.level-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--ink-2)}
.level-meta b{color:var(--amber);font-weight:800;font-variant-numeric:tabular-nums}
.level-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink-2);
}
.level-arrow svg{width:18px;height:18px;transition:transform .25s ease}
.level-row:hover .level-arrow{color:var(--brand)}
.level-row:hover .level-arrow svg{transform:translateX(5px)}

/* ---------- 反馈 / 数据 ---------- */
.proof-band{background:var(--paper);color:var(--paper-ink);border-radius:var(--r-lg);padding:52px;box-shadow:var(--sh-2)}
.proof-band h2{color:var(--paper-ink);font-size:clamp(23px,2.6vw,32px);margin-bottom:24px}
.paper-quote{
  margin:0 0 34px;padding:24px 26px;border-left:4px solid var(--teal);
  background:rgba(33,230,180,.1);border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:17px;line-height:1.9;color:#22301F;
}
.paper-quote cite{display:block;margin-top:12px;font-size:13.5px;font-style:normal;color:#5C6B55}
.score-list{display:grid;gap:14px;margin-bottom:34px}
.score-row{display:grid;grid-template-columns:110px 1fr 48px;align-items:center;gap:16px;font-size:14.5px;color:#33402D}
.score-track{display:block;height:8px;border-radius:var(--pill);background:rgba(22,32,26,.14);overflow:hidden}
.score-fill{display:block;height:100%;border-radius:var(--pill);background:linear-gradient(90deg,#8BD12A,#21E6B4)}
.score-num{text-align:right;font-weight:900;font-variant-numeric:tabular-nums;color:#16201A}
.proof-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding-top:28px;border-top:1px solid rgba(22,32,26,.14)}
.proof-stats div b{display:block;font-size:clamp(30px,3.6vw,42px);font-weight:900;color:#16201A;font-variant-numeric:tabular-nums;line-height:1.1}
.proof-stats div span{font-size:13.5px;color:#5C6B55}

/* ---------- FAQ ---------- */
.accordion{border:0;background:transparent;margin:0}
.accordion-item{
  background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.accordion-item:hover{border-color:rgba(198,255,61,.3);box-shadow:0 10px 30px rgba(0,0,0,.32)}
.accordion-item.is-active{border-color:rgba(198,255,61,.4);box-shadow:var(--glow)}
.accordion-title{
  display:block;border:0;background:transparent;color:var(--ink);
  font-size:17px;font-weight:800;line-height:1.55;padding:22px 62px 22px 26px;position:relative;
}
.accordion-title:hover{background:var(--surface-2);color:var(--brand)}
.accordion-title::before{
  content:"+";position:absolute;right:24px;top:50%;width:30px;height:30px;margin-top:-15px;
  display:grid;place-items:center;border-radius:50%;font-size:18px;font-weight:700;
  color:var(--brand);background:rgba(198,255,61,.1);box-shadow:inset 0 0 0 1px var(--line);
  transition:transform .25s ease,background .25s ease;
}
.accordion-item.is-active > .accordion-title{color:var(--brand)}
.accordion-item.is-active > .accordion-title::before{content:"+";transform:rotate(45deg);background:rgba(198,255,61,.2)}
.accordion-content{
  border:0;background:transparent;padding:0 62px 24px 26px;color:var(--ink-2);
  font-size:15.5px;line-height:1.9;
}
.accordion-content p:last-child{margin-bottom:0}

/* ---------- 推荐链接 ---------- */
.related-links{display:grid;gap:14px;margin-top:26px}
.related-link{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;border-radius:var(--r-sm);background:rgba(10,13,10,.18);
  box-shadow:inset 0 0 0 1px rgba(22,32,26,.22);color:#16201A;
}
.related-link b{display:block;font-size:16px;font-weight:800}
.related-link span{font-size:13.5px;color:#4C5A46}
.related-link svg{width:20px;height:20px;flex:0 0 auto;transition:transform .25s ease}
.related-link:hover{background:rgba(10,13,10,.28);box-shadow:inset 0 0 0 1px rgba(22,32,26,.4)}
.related-link:hover svg{transform:translateX(5px)}

/* ---------- CTA 区 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--grad-brand);color:#111A06;
  padding:56px;display:grid;gap:32px;align-items:center;
  box-shadow:0 24px 60px rgba(33,230,180,.16);
}
.cta-band h2{color:#0F1607;font-size:clamp(24px,3vw,36px);margin-bottom:12px}
.cta-band p{color:rgba(15,22,7,.78);font-size:16.5px;margin:0;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band .btn-ghost{color:#0F1607;box-shadow:inset 0 0 0 1.5px rgba(15,22,7,.42)}
.cta-band .btn-ghost:hover{background:rgba(15,22,7,.1);color:#0F1607;box-shadow:inset 0 0 0 1.5px rgba(15,22,7,.7)}
.cta-points{display:grid;gap:10px;margin-top:20px;font-size:15px;color:rgba(15,22,7,.82)}
.cta-points li{display:flex;gap:10px;align-items:baseline}
.cta-points li::before{content:"";width:8px;height:8px;border-radius:3px;background:#16201A;flex:0 0 auto;transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-0);margin-top:96px}
.site-footer::before{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,var(--brand),var(--teal),transparent)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px;padding:66px 0 44px}
.foot-brand{display:flex;align-items:center;gap:11px;font-weight:900;font-size:18px;margin-bottom:16px}
.foot-about{color:var(--ink-2);font-size:14.5px;line-height:1.8;margin:0 0 20px;max-width:330px}
.foot-col h4{font-size:15px;font-weight:800;margin-bottom:18px;color:var(--ink)}
.foot-list{display:grid;gap:12px}
.foot-list a{font-size:14.5px;color:var(--ink-2);display:inline-block}
.foot-list a:hover{color:var(--brand);transform:translateX(4px)}
.foot-contact{display:grid;gap:14px;font-size:14.5px;color:var(--ink-2)}
.foot-contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.7}
.foot-contact svg{width:17px;height:17px;flex:0 0 auto;margin-top:4px;color:var(--brand)}
.socials{display:flex;gap:10px}
.socials a{
  display:grid;place-items:center;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.04);box-shadow:inset 0 0 0 1px var(--line-2);color:var(--ink-2);
}
.socials a svg{width:19px;height:19px}
.socials a:hover{color:var(--brand);transform:translateY(-3px);box-shadow:inset 0 0 0 1px rgba(198,255,61,.4)}
.foot-bottom{
  border-top:1px solid var(--line-2);padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:var(--ink-3);
}
.foot-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media screen and (min-width:64em){
  .hero-inner{grid-template-columns:7fr 5fr;gap:52px}
  .cta-band{grid-template-columns:1.35fr .65fr}
}
@media screen and (max-width:1023.98px){
  .nav-menu{display:none}
  .burger{display:flex}
  .section{padding:78px 0}
  .split{margin-bottom:64px}
  .proof-band{padding:36px}
  .cta-band{padding:38px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media screen and (max-width:767.98px){
  .wrap{padding:0 20px}
  .section{padding:64px 0}
  .section-sm{padding:52px 0}
  .hero-inner{padding:52px 0 46px;gap:28px}
  .split{margin-bottom:52px}
  .split-media{order:-1}
  .level-row{grid-template-columns:1fr;gap:14px;padding:20px}
  .level-badge{height:44px;width:96px;justify-self:start}
  .level-arrow{justify-content:flex-start}
  .proof-stats{grid-template-columns:1fr;gap:14px}
  .score-row{grid-template-columns:88px 1fr 44px;gap:12px}
  .cta-band{padding:30px 24px}
  .accordion-title{padding:18px 58px 18px 20px;font-size:16px}
  .accordion-content{padding:0 24px 20px 20px}
  .foot-grid{grid-template-columns:1fr;gap:30px;padding:48px 0 32px}
}
@media screen and (max-width:520px){
  .brand-text{font-size:16.5px}
  .hero-title{font-size:27px}
  .hero-copy{padding-left:18px}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .stat-badge{padding:9px 14px}
  .stat-badge b{font-size:19px}
  .proof-band{padding:26px 20px}
  .related-link{flex-direction:row}
}