/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --bg:#060A14;
  --bg-deep:#02040A;
  --panel:#0B1424;
  --glass-bg:rgba(255,255,255,.055);
  --glass-bg-strong:rgba(11,20,36,.78);
  --stroke:rgba(255,255,255,.12);
  --stroke-soft:rgba(255,255,255,.07);
  --primary:#1F6BFF;
  --primary-deep:#1552CC;
  --accent:#1FE0BE;
  --accent-soft:rgba(31,224,190,.08);
  --warn:#FF7A2F;
  --text:#EAF2FF;
  --text-2:#9FB0CC;
  --text-3:#6C7C99;
  --ok:#1FE0BE;
  --s-warn:#FFB020;
  --err:#FF5A5A;
  --disabled:#33415C;

  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"DIN Alternate","Barlow Condensed","Oswald","Arial Narrow",sans-serif;

  --fs-h1:44px; --lh-h1:56px;
  --fs-h2:32px; --lh-h2:44px;
  --fs-h3:22px; --lh-h3:32px;
  --fs-body:17px; --lh-body:30px;
  --fs-sm:14px; --lh-sm:22px;
  --fs-badge:12px; --lh-badge:18px;

  --r-card:20px;
  --r-pill:999px;
  --r-img:16px;
  --r-input:12px;
  --r-badge:8px;

  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:64px; --sp-7:96px;

  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(31,107,255,.22);
  --shadow-pill:0 10px 30px rgba(0,0,0,.35);

  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
  --container:1200px;
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:var(--fs-body);
  line-height:var(--lh-body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(31,107,255,.20), transparent 62%),
    radial-gradient(900px 520px at 92% 4%, rgba(31,224,190,.10), transparent 62%),
    linear-gradient(180deg,#060A14 0%,#02040A 100%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}
::selection{background:rgba(31,107,255,.4);color:#fff}

/* ===================== 通用排版 ===================== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

h1{font-size:var(--fs-h1);line-height:var(--lh-h1);font-weight:800;letter-spacing:-.01em}
h2{font-size:var(--fs-h2);line-height:var(--lh-h2);font-weight:700;letter-spacing:-.01em}
h3{font-size:var(--fs-h3);line-height:var(--lh-h3);font-weight:600}
p{color:var(--text-2)}

.section{padding:var(--sp-7) 0;position:relative}
.section-head{max-width:720px;margin-bottom:var(--sp-5)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:var(--fs-badge);line-height:var(--lh-badge);
  color:var(--accent);
  padding:6px 14px;border-radius:var(--r-badge);
  background:var(--accent-soft);
  border:1px solid rgba(31,224,190,.25);
  margin-bottom:16px;
}
.section-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.section-desc{font-size:var(--fs-body);color:var(--text-2);margin-top:14px;max-width:640px}
.section-head.center .section-desc{margin-left:auto;margin-right:auto}

.glass{
  position:relative;
  background:var(--glass-bg);
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.glass::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  border-radius:inherit;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  pointer-events:none;
}
.card-hover{transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.card-hover:hover{transform:translateY(-4px);border-color:rgba(31,224,190,.35);box-shadow:var(--shadow-hover)}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),filter var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{
  background:linear-gradient(180deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 8px 24px rgba(31,107,255,.32);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:inset 0 1px 0 rgba(255,255,255,.36),0 14px 34px rgba(31,107,255,.48)}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-ghost{
  background:transparent;border:1px solid rgba(255,255,255,.22);color:var(--text);
}
.btn-ghost:hover{border-color:var(--accent);background:var(--accent-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

.text-link{
  color:var(--primary);
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
  transition:color var(--dur) var(--ease),text-decoration-color var(--dur) var(--ease);
}
.text-link:hover{color:var(--accent)}

.badge{
  display:inline-flex;align-items:center;
  font-size:var(--fs-badge);line-height:var(--lh-badge);
  padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(31,107,255,.18);
  border:1px solid rgba(31,107,255,.4);
  color:#BBD4FF;
  white-space:nowrap;
}
.badge-accent{background:var(--accent-soft);border-color:rgba(31,224,190,.35);color:var(--accent)}

/* ===================== 悬浮胶囊导航 ===================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  padding:16px 16px 0;
  transition:padding var(--dur) var(--ease);
}
.site-header.is-scrolled{padding-top:10px}
.nav-pill{
  max-width:1168px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  height:64px;padding:0 12px 0 20px;
  border-radius:var(--r-pill);
  background:var(--glass-bg-strong);
  border:1px solid var(--stroke);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-pill);
  transition:height var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header.is-scrolled .nav-pill{height:54px;background:rgba(6,10,20,.88);border-color:rgba(255,255,255,.16)}

.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#0D3EA8);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 6px 18px rgba(31,107,255,.35);
}
.brand-mark svg{width:19px;height:19px}
.brand-text{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--text);white-space:nowrap}

.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-link.is-active{color:var(--text);background:rgba(31,107,255,.16)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-cta{flex-shrink:0}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--stroke);margin-left:auto;
  place-items:center;gap:4px;flex-direction:column;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}

.nav-drawer{
  position:fixed;inset:0;z-index:79;
  background:rgba(2,4,10,.92);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:110px 24px 40px;
  opacity:0;visibility:hidden;transform:translateY(-12px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-links{display:flex;flex-direction:column;gap:20px}
.drawer-links a{
  font-size:19px;font-weight:600;color:var(--text);
  padding-bottom:14px;border-bottom:1px solid var(--stroke-soft);
}
.drawer-links a.is-active{color:var(--accent)}
.drawer-cta{margin-top:36px}

/* ===================== 首屏 ===================== */
.hero{
  position:relative;min-height:82vh;
  display:flex;align-items:center;
  padding:150px 0 72px;overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center;opacity:.46}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(6,10,20,.74) 0%,rgba(6,10,20,.88) 52%,#060A14 100%);
}
.hero-mesh{
  position:absolute;inset:0;z-index:2;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 46% 42%,#000 26%,transparent 76%);
  mask-image:radial-gradient(circle at 46% 42%,#000 26%,transparent 76%);
}
.hero-inner{
  position:relative;z-index:3;width:100%;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  align-items:center;gap:40px;
}
.hero-copy{max-width:640px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;color:var(--accent);
  padding:7px 15px;border-radius:var(--r-pill);
  background:rgba(31,224,190,.08);
  border:1px solid rgba(31,224,190,.28);
  margin-bottom:22px;
}
.hero-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.hero h1{color:var(--text);margin-bottom:20px}
.hero-sub{font-size:18px;line-height:30px;color:var(--text-2);max-width:480px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

.hero-card{
  align-self:end;justify-self:end;
  width:100%;max-width:340px;
  padding:24px;
}
.hero-card-title{
  font-size:13px;color:var(--text-3);letter-spacing:.06em;margin-bottom:16px;
}
.hero-card ul{display:flex;flex-direction:column;gap:14px}
.hero-card li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:14px;line-height:22px;color:var(--text-2);
}
.hero-card li .dot{
  width:22px;height:22px;border-radius:8px;flex-shrink:0;
  display:grid;place-items:center;
  background:rgba(31,107,255,.18);
  border:1px solid rgba(31,107,255,.36);
  font-family:var(--font-num);font-size:12px;color:#BBD4FF;
}

/* ===================== 锚点分区条 ===================== */
.anchor-wrap{
  position:sticky;top:84px;z-index:60;
  padding:0 24px;margin-top:-30px;
  display:flex;justify-content:center;
}
.anchor-bar{
  display:flex;align-items:center;gap:2px;
  padding:7px;border-radius:var(--r-pill);
  background:rgba(11,20,36,.82);
  border:1px solid var(--stroke);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  max-width:100%;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.anchor-bar::-webkit-scrollbar{display:none}
.anchor-link{
  position:relative;white-space:nowrap;
  padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.anchor-link::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--accent);
  transition:width var(--dur) var(--ease);
}
.anchor-link:hover{color:var(--text)}
.anchor-link.is-active{color:var(--text);background:var(--accent-soft)}
.anchor-link.is-active::after{width:22px}

/* ===================== 卖点区 2+1 ===================== */
.feature-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:24px;align-items:start}
.feature-col{display:flex;flex-direction:column;gap:24px}
.feature-col .feature-card:nth-child(2){margin-left:44px}
.feature-card{padding:28px;display:flex;flex-direction:column;gap:14px}
.feature-tall{padding:32px;min-height:100%;display:flex;flex-direction:column;gap:16px}
.feature-num{
  font-family:var(--font-num);font-size:38px;line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(31,224,190,.7);
  letter-spacing:.02em;
}
.feature-ico{
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(31,107,255,.35),rgba(31,107,255,.06));
  border:1px solid rgba(31,107,255,.36);
}
.feature-ico svg{width:22px;height:22px}
.feature-card h3{font-size:20px;line-height:30px;color:var(--text)}
.feature-card p{font-size:15px;line-height:26px;color:var(--text-2)}
.feature-tall .feature-list{display:flex;flex-direction:column;gap:12px;margin-top:auto}
.feature-tall .feature-list li{
  display:flex;gap:10px;font-size:14px;line-height:22px;color:var(--text-2);
}
.feature-tall .feature-list li::before{
  content:"";width:6px;height:6px;margin-top:8px;border-radius:50%;
  background:var(--accent);flex-shrink:0;
}

/* ===================== 演示区 ===================== */
.guide-grid{
  display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);
  gap:48px;align-items:center;
}
.guide-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--stroke);
  box-shadow:0 20px 50px rgba(0,0,0,.45);
  aspect-ratio:16/11;
}
.guide-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease}
.guide-media:hover img{transform:scale(1.03)}
.guide-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(6,10,20,.72) 100%);
}
.guide-caption{
  position:absolute;left:20px;bottom:18px;z-index:2;
  font-size:13px;color:var(--text);letter-spacing:.02em;
}
.step-list{display:flex;flex-direction:column;gap:4px;margin-top:28px}
.step{
  position:relative;padding:18px 0 18px 46px;
  border-left:1px solid var(--stroke);
  margin-left:15px;
}
.step:last-child{border-left-color:transparent}
.step::before{
  content:"";position:absolute;left:-11px;top:22px;
  width:21px;height:21px;border-radius:50%;
  background:var(--panel);
  border:1px solid var(--stroke);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.step::after{
  content:"";position:absolute;left:-5px;top:28px;
  width:9px;height:9px;border-radius:50%;background:var(--text-3);
  transition:background var(--dur) var(--ease);
}
.step.is-active::before{border-color:rgba(31,224,190,.55);box-shadow:0 0 0 4px rgba(31,224,190,.12)}
.step.is-active::after{background:var(--accent);box-shadow:0 0 12px var(--accent)}
.step h3{font-size:17px;line-height:26px;color:var(--text);margin-bottom:6px}
.step p{font-size:14px;line-height:22px;color:var(--text-2)}

/* ===================== 证据区 ===================== */
.scoreboard{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  padding:34px 12px;
  margin-bottom:28px;
}
.score-item{
  padding:0 24px;text-align:center;
  border-right:1px solid var(--stroke-soft);
}
.score-item:last-child{border-right:0}
.score-num{
  display:block;
  font-family:var(--font-num);font-size:52px;line-height:1;
  color:var(--text);letter-spacing:-.01em;
  margin-bottom:12px;
}
.score-item:nth-child(2n) .score-num{color:var(--accent)}
.score-num small{font-size:22px;margin-left:2px;color:var(--text-2)}
.score-label{font-size:14px;color:var(--text-2)}

.badge-row{
  display:flex;gap:12px;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:none;
}
.badge-row::-webkit-scrollbar{display:none}
.media-chip{
  flex-shrink:0;display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--stroke-soft);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.media-chip:hover{color:var(--text);border-color:rgba(31,224,190,.35)}
.media-chip svg{width:15px;height:15px;color:var(--accent)}

/* ===================== 方案区 ===================== */
.plans-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:end}
.plan-card{padding:30px 28px;display:flex;flex-direction:column;gap:20px}
.plan-card.is-featured{
  transform:translateY(-8px);
  border-color:rgba(31,107,255,.55);
  box-shadow:0 16px 44px rgba(31,107,255,.28),inset 0 1px 0 rgba(255,255,255,.3);
}
.plan-card.is-featured:hover{transform:translateY(-12px)}
.plan-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.plan-name{font-size:20px;font-weight:600;color:var(--text)}
.plan-tag{
  font-size:var(--fs-badge);line-height:var(--lh-badge);
  padding:4px 12px;border-radius:var(--r-badge);
  background:rgba(255,122,47,.16);
  border:1px solid rgba(255,122,47,.45);
  color:var(--warn);
}
.plan-points{display:flex;flex-direction:column;gap:12px}
.plan-points li{display:flex;gap:10px;font-size:14px;line-height:22px;color:var(--text-2)}
.plan-points svg{width:16px;height:16px;flex-shrink:0;margin-top:3px;color:var(--accent)}
.plan-price{
  margin-top:auto;padding-top:20px;border-top:1px solid var(--stroke-soft);
  display:flex;align-items:flex-end;gap:8px;
}
.plan-price strong{
  font-family:var(--font-num);font-size:40px;line-height:1;font-weight:400;
  color:var(--warn);letter-spacing:-.01em;
}
.plan-price span{font-size:13px;color:var(--text-3);padding-bottom:5px}

/* ===================== 最新信息 ===================== */
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:32px;
}
.news-grid{display:grid;grid-template-columns:1.32fr 1fr;gap:24px}
.news-card{overflow:hidden}
.news-link{display:flex;flex-direction:column;height:100%}
.news-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  border-radius:var(--r-card) var(--r-card) 0 0;
  background:#0D1728;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;object-position:center;transition:transform 300ms ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb .badge{position:absolute;left:14px;top:14px;backdrop-filter:blur(8px)}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{
  font-size:20px;line-height:30px;font-weight:600;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--dur) var(--ease);
}
.news-card:hover .news-title{color:var(--accent)}
.news-sum{
  font-size:14px;line-height:24px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);font-family:var(--font-num);
}
.news-side{display:flex;flex-direction:column;gap:16px}
.news-side .news-card .news-link{flex-direction:row;align-items:stretch}
.news-side .news-thumb{
  width:130px;flex-shrink:0;aspect-ratio:auto;border-radius:var(--r-card) 0 0 var(--r-card);
}
.news-side .news-body{padding:18px 20px;gap:8px}
.news-side .news-title{font-size:15px;line-height:24px;-webkit-line-clamp:2}
.news-side .news-sum{display:none}

.empty-state{
  min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:32px;
}
.empty-state svg{width:38px;height:38px;color:var(--text-3)}
.empty-state p{font-size:15px;color:var(--text-2)}

/* ===================== FAQ ===================== */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  position:relative;border-radius:var(--r-card);
  background:var(--glass-bg);border:1px solid var(--stroke);
  overflow:hidden;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--accent);transform:scaleY(0);transform-origin:top;
  transition:transform 260ms var(--ease);
}
.faq-item.is-open{border-color:rgba(31,224,190,.32);background:rgba(255,255,255,.07)}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;text-align:left;
  font-size:17px;line-height:26px;font-weight:600;color:var(--text);
}
.faq-icon{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--stroke);
  color:var(--text-2);
  transition:transform 260ms var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);color:var(--accent);border-color:rgba(31,224,190,.45)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 260ms var(--ease);
}
.faq-a p{padding:0 26px 24px;font-size:15px;line-height:26px;color:var(--text-2);max-width:720px}

/* ===================== 页脚 ===================== */
.site-footer{padding:64px 0 32px;border-top:1px solid var(--stroke-soft);margin-top:32px}
.footer-panel{
  display:grid;grid-template-columns:1.4fr .8fr .8fr 1.2fr;gap:36px;
  padding:36px 32px;
}
.footer-col h3{font-size:15px;line-height:24px;color:var(--text);margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{font-size:14px;color:var(--text-2);transition:color var(--dur) var(--ease)}
.footer-col ul a:hover{color:var(--accent)}
.footer-brand p{font-size:14px;line-height:24px;color:var(--text-2);margin-top:16px;max-width:300px}
.footer-form .field{margin-bottom:12px}
.footer-form label{display:block;font-size:13px;color:var(--text-3);margin-bottom:7px}
.footer-form input,.footer-form textarea{
  width:100%;padding:11px 14px;
  border-radius:var(--r-input);
  background:rgba(2,4,10,.6);
  border:1px solid var(--stroke);
  color:var(--text);font-size:14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.footer-form textarea{resize:vertical;min-height:76px}
.footer-form input::placeholder,.footer-form textarea::placeholder{color:var(--text-3)}
.footer-form input:focus,.footer-form textarea:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(31,224,190,.16);
}
.form-hint{font-size:13px;color:var(--err);margin-top:6px;display:none}
.form-hint.is-show{display:block}
.form-ok{font-size:13px;color:var(--ok);margin-top:10px;display:none}
.form-ok.is-show{display:block}

.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  flex-wrap:wrap;
  padding:24px 4px 0;margin-top:24px;
  border-top:1px solid var(--stroke-soft);
  font-size:13px;color:var(--text-3);
}
.footer-bottom ul{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom ul a{font-size:13px;color:var(--text-3);transition:color var(--dur) var(--ease)}
.footer-bottom ul a:hover{color:var(--accent)}

/* ===================== 浮动 CTA ===================== */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;
  height:54px;padding:0 26px;border-radius:var(--r-pill);
  background:linear-gradient(180deg,#1F6BFF 0%,#1552CC 100%);
  color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 0 0 0 rgba(255,122,47,.55),0 12px 32px rgba(31,107,255,.45);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);animation:pulseRing 2.6s var(--ease) infinite}
.float-cta:hover{filter:brightness(1.06)}
.float-cta .pulse-dot{
  width:8px;height:8px;border-radius:50%;background:var(--warn);
  box-shadow:0 0 12px var(--warn);flex-shrink:0;
}
@keyframes pulseRing{
  0%{box-shadow:0 0 0 0 rgba(255,122,47,.5),0 12px 32px rgba(31,107,255,.45)}
  70%{box-shadow:0 0 0 14px rgba(255,122,47,0),0 12px 32px rgba(31,107,255,.45)}
  100%{box-shadow:0 0 0 0 rgba(255,122,47,0),0 12px 32px rgba(31,107,255,.45)}
}

/* ===================== 响应式 ===================== */
@media (max-width:1199px){
  :root{--fs-h1:38px;--lh-h1:50px;--fs-h2:28px;--lh-h2:40px}
  .nav-links{gap:0}
  .nav-link{padding:9px 11px;font-size:13px}
  .plans-grid{gap:18px}
}

@media (max-width:1024px){
  :root{--sp-7:80px}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-card{justify-self:start;max-width:100%}
  .feature-grid{grid-template-columns:1fr;gap:20px}
  .feature-col .feature-card:nth-child(2){margin-left:0}
  .guide-grid{grid-template-columns:1fr;gap:32px}
  .news-grid{grid-template-columns:1fr}
  .news-side{flex-direction:row;overflow-x:auto;padding-bottom:6px}
  .news-side .news-card{min-width:300px;flex:1}
  .news-side .news-link{flex-direction:column}
  .news-side .news-thumb{width:100%;aspect-ratio:16/9;border-radius:var(--r-card) var(--r-card) 0 0}
  .footer-panel{grid-template-columns:1fr 1fr;gap:28px}
  .plans-grid{grid-template-columns:1fr;gap:20px}
  .plan-card.is-featured{transform:none}
  .plan-card.is-featured:hover{transform:translateY(-4px)}
}

@media (max-width:900px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .scoreboard{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 0;padding:28px 8px}
  .score-item:nth-child(2){border-right:0}
  .score-item{border-bottom:0}
}

@media (max-width:767px){
  :root{
    --fs-h1:30px;--lh-h1:40px;
    --fs-h2:24px;--lh-h2:34px;
    --fs-h3:19px;--lh-h3:28px;
    --fs-body:16px;--lh-body:28px;
    --sp-7:56px;
  }
  .container{padding:0 18px}
  .site-header{padding:12px 12px 0}
  .nav-pill{height:58px;padding:0 10px 0 16px}
  .site-header.is-scrolled .nav-pill{height:52px}
  .brand-text{font-size:14px}
  .hero{min-height:68vh;padding:120px 0 52px}
  .hero-sub{font-size:16px;line-height:27px;margin-bottom:28px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1;min-width:150px}
  .anchor-wrap{top:76px;padding:0 18px;justify-content:flex-start;overflow:hidden}
  .anchor-bar{width:100%;justify-content:flex-start}
  .section{padding:var(--sp-7) 0}
  .feature-card,.feature-tall{padding:22px}
  .score-num{font-size:40px}
  .score-item{padding:0 14px}
  .faq-q{font-size:16px;padding:18px 20px;gap:14px}
  .faq-a p{padding:0 20px 20px}
  .footer-panel{padding:26px 20px;gap:26px}
  .news-body{padding:20px}
  .float-cta{
    left:0;right:0;bottom:0;
    width:100%;height:58px;border-radius:0;
    justify-content:center;
    padding:0 18px;
  }
  .float-cta.is-visible{animation:none}
  .site-footer{padding-bottom:78px}
}

@media (max-width:520px){
  .feature-num{font-size:32px}
  .plan-card{padding:24px 20px}
  .plan-price strong{font-size:34px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .footer-bottom ul{gap:14px}
  .news-side .news-card{min-width:250px}
}

@media (max-width:400px){
  .container{padding:0 14px}
  .feature-card,.feature-tall,.hero-card{padding:18px}
  .news-body{padding:16px}
  .plan-card{padding:20px 16px}
  .btn{padding:0 20px;font-size:14px}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg:#060A14;
  --bg-deep:#02040A;
  --panel:rgba(11,20,36,.72);
  --panel-2:rgba(11,20,36,.5);
  --primary:#1F6BFF;
  --primary-dark:#1758D6;
  --accent:#1FE0BE;
  --warn:#FF7A2F;
  --text:#EAF2FF;
  --text-2:#9FB0CC;
  --text-3:#6C7C99;
  --stroke:rgba(255,255,255,.12);
  --stroke-strong:rgba(255,255,255,.22);
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.09);
  --ok:#1FE0BE;
  --warn-c:#FFB020;
  --err:#FF5A5A;
  --off:#33415C;
  --r-card:20px;
  --r-btn:999px;
  --r-img:16px;
  --r-input:12px;
  --r-badge:8px;
  --sh:0 8px 24px rgba(0,0,0,.35);
  --sh-hover:0 16px 40px rgba(31,107,255,.22);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --sp-sec:96px;
  --maxw:1200px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"DIN","Barlow Condensed","Oswald","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:
    radial-gradient(1100px 620px at 78% -8%, rgba(31,107,255,.20), transparent 62%),
    radial-gradient(900px 520px at 8% 4%, rgba(31,224,190,.12), transparent 60%),
    linear-gradient(180deg,#060A14 0%, #04070F 46%, #02040A 100%);
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--font);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
button,input,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.glass{
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh);
  position:relative;
  overflow:hidden;
}
.glass::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.42),transparent);
  pointer-events:none;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),filter var(--t),color var(--t);
}
.btn-primary{
  background:linear-gradient(180deg,#2F79FF,#1B5FE6);
  color:#fff;
  border-color:rgba(255,255,255,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 10px 26px rgba(31,107,255,.36);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 16px 38px rgba(31,107,255,.5);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--stroke-strong);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--accent);background:rgba(31,224,190,.08);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;line-height:18px;font-weight:600;
  background:rgba(31,224,190,.12);
  border:1px solid rgba(31,224,190,.34);
  color:var(--accent);
}
.badge-soft{background:rgba(255,255,255,.06);border-color:var(--stroke);color:var(--text-2);}
.sec{padding:var(--sp-sec) 0;}
.sec-line{border-top:1px solid rgba(255,255,255,.07);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px;}
.sec-head h2{font-size:32px;}
.sec-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:640px;}
.link-more{color:var(--primary);font-weight:600;font-size:15px;text-decoration:underline;text-underline-offset:4px;}
.link-more:hover{color:var(--accent);}

/* ============ 导航 ============ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;padding:16px 0;transition:padding var(--t);}
.site-header.is-shrink{padding:8px 0;}
.nav-capsule{
  display:flex;align-items:center;gap:20px;
  height:64px;padding:0 12px 0 20px;border-radius:var(--r-btn);
  background:rgba(10,17,32,.62);
  border:1px solid var(--stroke);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:0 10px 30px rgba(0,0,0,.4);
  transition:height var(--t),background var(--t),box-shadow var(--t);
}
.site-header.is-shrink .nav-capsule{height:54px;background:rgba(8,13,26,.85);box-shadow:0 12px 34px rgba(0,0,0,.55);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(31,107,255,.95),rgba(31,224,190,.7));
  box-shadow:0 6px 18px rgba(31,107,255,.4), inset 0 1px 0 rgba(255,255,255,.35);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--text-2);font-weight:500;
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{color:#fff;background:rgba(31,107,255,.18);box-shadow:inset 0 0 0 1px rgba(31,107,255,.45);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--stroke);
  cursor:pointer;position:relative;
}
.nav-toggle span{position:absolute;left:13px;right:13px;height:2px;border-radius:2px;background:#fff;transition:transform var(--t),opacity var(--t);}
.nav-toggle span:nth-child(1){top:17px;}
.nav-toggle span:nth-child(2){bottom:17px;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){transform:translateY(-5px) rotate(-45deg);}
.drawer{
  position:fixed;inset:76px 16px auto 16px;z-index:70;
  padding:24px;border-radius:24px;
  background:rgba(8,13,26,.96);border:1px solid var(--stroke);
  backdrop-filter:blur(18px);box-shadow:0 20px 50px rgba(0,0,0,.6);
  transform:translateY(-14px);opacity:0;visibility:hidden;
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer a{display:block;padding:14px 0;font-size:16px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.07);}
.drawer a:last-of-type{border-bottom:0;}
.drawer a:hover,.drawer a.is-active{color:#fff;padding-left:6px;}
.drawer .btn{margin-top:18px;}

/* ============ 文章头部 ============ */
.page-top{padding:132px 0 0;}
.crumbs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px;color:var(--text-3);margin-bottom:24px;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:var(--off);}
.crumbs .now{max-width:320px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-3);}
.article-hero{
  padding:36px 40px 34px;border-radius:24px;
  background:
    linear-gradient(180deg,rgba(11,20,36,.86),rgba(6,10,20,.7)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border:1px solid var(--stroke);
  box-shadow:var(--sh);
  position:relative;overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:44px 44px;opacity:.5;pointer-events:none;
}
.article-hero > *{position:relative;z-index:1;}
.article-hero h1{font-size:42px;line-height:1.26;margin:16px 0 18px;max-width:900px;}
.meta-row{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:14px;color:var(--text-2);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--off);}
.meta-row .num{font-family:var(--font-num);letter-spacing:.04em;color:var(--text);}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}

/* ============ 正文 ============ */
.reading{display:flex;gap:40px;align-items:flex-start;padding-top:56px;}
.reading-main{flex:1 1 auto;min-width:0;max-width:820px;margin:0 auto;}
.back-line{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:24px;}
.article-body{
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:var(--r-card);
  padding:44px 48px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh);
  font-size:17px;line-height:1.9;color:var(--text);
}
.article-body > * + *{margin-top:1.2em;}
.article-body p{color:#DCE7FA;}
.article-body h2{
  font-size:27px;line-height:1.4;margin-top:2em;padding-left:16px;position:relative;color:#fff;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.article-body h3{font-size:21px;margin-top:1.6em;font-weight:800;color:#fff;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--accent);}
.article-body strong{color:#fff;}
.article-body ul,.article-body ol{padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.5em 0;color:#DCE7FA;}
.article-body li::marker{color:var(--accent);}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-img) var(--r-img) 0;
  background:rgba(31,224,190,.06);
  color:var(--text-2);
}
.article-body img{border-radius:var(--r-img);margin:1.6em 0;width:100%;object-fit:cover;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body code{background:rgba(255,255,255,.08);padding:2px 6px;border-radius:6px;font-size:15px;}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  text-align:center;padding:40px 24px;
}
.empty-state svg{width:44px;height:44px;stroke:var(--text-3);}
.empty-state p{color:var(--text-2);font-size:16px;}

/* ============ 上下篇 ============ */
.adjacent{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px;}
.adj-card{
  display:block;padding:24px 26px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--stroke);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.adj-card:hover{transform:translateY(-4px);border-color:rgba(31,224,190,.35);box-shadow:var(--sh-hover);}
.adj-card span{font-size:12px;color:var(--text-3);letter-spacing:.04em;}
.adj-card h3{font-size:19px;margin:10px 0 8px;color:#fff;}
.adj-card p{font-size:14px;color:var(--text-2);}
.adj-card.is-next{text-align:right;}

/* ============ 相关推荐 ============ */
.reco-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.reco-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);background:var(--glass);border:1px solid var(--stroke);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.reco-card:hover{transform:translateY(-4px);border-color:rgba(31,224,190,.35);box-shadow:var(--sh-hover);}
.reco-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.reco-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease;}
.reco-card:hover .reco-thumb img{transform:scale(1.03);}
.reco-thumb .badge{position:absolute;left:12px;top:12px;background:rgba(6,10,20,.72);border-color:rgba(31,224,190,.5);backdrop-filter:blur(8px);}
.reco-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.reco-body h3{
  font-size:17px;line-height:1.5;color:#fff;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.reco-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.reco-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);}
.reco-foot .num{font-family:var(--font-num);}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:var(--r-card);background:var(--glass);border:1px solid var(--stroke);
  overflow:hidden;transition:border-color var(--t),background var(--t);
}
.faq-item.is-open{border-color:rgba(31,224,190,.4);background:rgba(31,224,190,.05);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:700;color:#fff;position:relative;
}
.faq-item.is-open .faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--accent);}
.faq-icon{flex:0 0 auto;width:26px;height:26px;display:grid;place-items:center;border-radius:8px;background:rgba(255,255,255,.07);}
.faq-icon svg{width:14px;height:14px;stroke:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.2,.7,.3,1);}
.faq-a p{padding:0 24px 22px 24px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ============ CTA 横幅 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:32px 36px;border-radius:24px;
  background:linear-gradient(120deg,rgba(31,107,255,.22),rgba(31,224,190,.12));
  border:1px solid rgba(31,224,190,.3);
  box-shadow:0 14px 40px rgba(0,0,0,.35);
}
.cta-band h2{font-size:24px;color:#fff;}
.cta-band p{font-size:15px;color:var(--text-2);margin-top:8px;}

/* ============ 页脚 ============ */
.site-footer{padding:80px 0 32px;margin-top:20px;border-top:1px solid rgba(255,255,255,.07);}
.footer-panel{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;
  padding:36px;border-radius:24px;
}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--accent);}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.8;max-width:300px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px;}
.field input,.field textarea{
  width:100%;background:rgba(4,8,16,.72);border:1px solid var(--stroke);
  border-radius:var(--r-input);padding:11px 14px;font-size:14px;color:var(--text);
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{min-height:76px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus{
  border-color:var(--accent);box-shadow:0 0 0 3px rgba(31,224,190,.16);outline:none;
}
.field.is-error input,.field.is-error textarea{border-color:var(--err);}
.form-hint{font-size:13px;color:var(--text-3);margin-top:6px;}
.field.is-error .form-hint{color:var(--err);}
.form-ok{display:none;font-size:13px;color:var(--ok);margin-top:10px;}
.form-ok.is-show{display:block;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;color:var(--text-3);
}
.footer-bottom ul{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--accent);}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:75;
  display:inline-flex;align-items:center;gap:10px;
  padding:0 26px;height:52px;border-radius:var(--r-btn);
  background:linear-gradient(180deg,#2F79FF,#1B5FE6);
  color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 0 0 0 rgba(255,122,47,.6),0 12px 30px rgba(31,107,255,.45);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
  animation:pulse 2.8s infinite;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{filter:brightness(1.07);}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,122,47,.5),0 12px 30px rgba(31,107,255,.45);}
  70%{box-shadow:0 0 0 14px rgba(255,122,47,0),0 12px 30px rgba(31,107,255,.45);}
  100%{box-shadow:0 0 0 0 rgba(255,122,47,0),0 12px 30px rgba(31,107,255,.45);}
}
@media (max-width:767px){
  .float-cta{
    left:0;right:0;bottom:0;height:58px;border-radius:0;justify-content:center;
    transform:translateY(100%);opacity:1;visibility:visible;animation:none;
  }
  .float-cta.is-show{transform:translateY(0);}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-hero h1{font-size:36px;}
  .footer-panel{grid-template-columns:1.4fr 1fr 1.3fr;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .reco-grid{grid-template-columns:1fr 1fr;}
  .footer-panel{grid-template-columns:1fr 1fr;gap:26px;}
  .article-body{padding:32px 26px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.72;}
  :root{--sp-sec:56px;}
  .container{padding:0 18px;}
  .sec-head h2{font-size:26px;}
  .page-top{padding-top:104px;}
  .article-hero{padding:26px 20px;border-radius:20px;}
  .article-hero h1{font-size:30px;line-height:1.34;}
  .reading{padding-top:36px;}
  .article-body{padding:24px 18px;font-size:16px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .adjacent{grid-template-columns:1fr;}
  .adj-card.is-next{text-align:left;}
  .reco-grid{grid-template-columns:1fr;}
  .cta-band{padding:24px 20px;}
  .cta-band h2{font-size:20px;}
  .footer-panel{grid-template-columns:1fr;padding:24px 20px;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px 18px;}
  .site-footer{padding-bottom:88px;}
  .crumbs .now{max-width:180px;}
  .reco-foot{font-size:12px;}
}
@media (max-width:400px){
  .brand-text{font-size:14px;}
  .article-body{padding:20px 16px;}
  .btn{padding:0 20px;font-size:15px;}
}

/* roulang page: category1 */
:root{
  --bg-1:#060A14;
  --bg-2:#02040A;
  --panel:#0B1424;
  --primary:#1F6BFF;
  --primary-dark:#1A5BE0;
  --primary-light:#4E8CFF;
  --accent:#1FE0BE;
  --accent-soft:rgba(31,224,190,.08);
  --orange:#FF7A2F;
  --text:#EAF2FF;
  --text-2:#9FB0CC;
  --text-3:#6C7C99;
  --success:#1FE0BE;
  --warning:#FFB020;
  --danger:#FF5A5A;
  --disabled:#33415C;
  --glass:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.12);
  --line-strong:rgba(255,255,255,.2);
  --r-card:20px;
  --r-btn:999px;
  --r-img:16px;
  --r-input:12px;
  --r-badge:8px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(31,107,255,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
  --container:1200px;
  --pad:24px;
  --sec-y:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"DIN Alternate","Barlow Condensed","Oswald","Arial Narrow",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:linear-gradient(180deg,var(--bg-2) 0%,var(--bg-1) 45%,var(--bg-2) 100%);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;text-underline-offset:4px;transition:color var(--dur) var(--ease),text-decoration-color var(--dur) var(--ease);}
a:hover{color:var(--accent);text-decoration:underline;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--pad);
}

/* ---------- 通用组件 ---------- */
.glass{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
}
.glass::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  border-radius:var(--r-card) var(--r-card) 0 0;
  background:linear-gradient(90deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.35) 50%,rgba(255,255,255,0) 100%);
  pointer-events:none;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:600;
  white-space:nowrap;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.btn-primary{
  color:#fff;
  background:linear-gradient(180deg,var(--primary) 0%,var(--primary-dark) 100%);
  border:1px solid rgba(255,255,255,.18);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 10px 26px rgba(31,107,255,.35);
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.06);
  color:#fff;
  text-decoration:none;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 16px 36px rgba(31,107,255,.5);
}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  color:var(--text);
  background:transparent;
  border:1px solid rgba(255,255,255,.22);
}
.btn-ghost:hover{
  color:var(--accent);
  border-color:var(--accent);
  background:var(--accent-soft);
  text-decoration:none;
  transform:translateY(-2px);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  font-size:12px;
  line-height:18px;
  border-radius:var(--r-badge);
  border:1px solid rgba(31,224,190,.35);
  background:rgba(31,224,190,.1);
  color:var(--accent);
  white-space:nowrap;
}
.badge-blue{
  border-color:rgba(31,107,255,.4);
  background:rgba(31,107,255,.12);
  color:var(--primary-light);
}
.badge-mute{
  border-color:var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-3);
}

.section{padding:var(--sec-y) 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{
  font-size:32px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head p{margin-top:12px;color:var(--text-2);font-size:16px;}
.eyebrow{
  display:inline-block;
  margin-bottom:14px;
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.14em;
  color:var(--accent);
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:60;
  transition:top var(--dur) var(--ease);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:64px;
  padding:0 12px 0 18px;
  border-radius:var(--r-btn);
  background:rgba(11,20,36,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-1);
  transition:height var(--dur) var(--ease),background var(--dur) var(--ease);
}
.is-scrolled .header-inner{
  height:54px;
  background:rgba(6,10,20,.9);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:700;
  letter-spacing:-.01em;
  flex:0 0 auto;
}
.brand:hover{color:var(--text);text-decoration:none;}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:11px;
  background:linear-gradient(150deg,var(--primary) 0%,#0E3E9E 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 6px 16px rgba(31,107,255,.35);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:16px;white-space:nowrap;}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex:1 1 auto;
  justify-content:center;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  border-radius:var(--r-btn);
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06);text-decoration:none;}
.nav-link.is-active{color:var(--text);background:rgba(31,107,255,.18);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  transform:translateX(-50%);
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.header-cta{
  flex:0 0 auto;
  background:linear-gradient(180deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 8px 22px rgba(31,107,255,.42);
}
.header-cta:hover{color:#fff;text-decoration:none;transform:translateY(-2px);}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:14px;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.drawer{
  position:fixed;
  inset:0;
  z-index:70;
  background:rgba(2,4,10,.96);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  display:flex;
  flex-direction:column;
  padding:96px 24px 32px;
  transform:translateY(-12px);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer a.drawer-link{
  display:block;
  padding:14px 4px;
  font-size:18px;
  color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer a.drawer-link:hover{color:var(--accent);text-decoration:none;}
.drawer a.drawer-link.is-active{color:var(--accent);}
.drawer-cta{margin-top:24px;}

/* ---------- 分类首屏 ---------- */
.cat-hero{
  position:relative;
  min-height:32vh;
  display:flex;
  align-items:flex-end;
  padding:150px 0 56px;
  overflow:hidden;
  background-image:
    linear-gradient(180deg,rgba(2,4,10,.82) 0%,rgba(6,10,20,.94) 100%),
    linear-gradient(90deg,rgba(31,107,255,.18) 0%,rgba(2,4,10,0) 60%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover,cover,cover;
  background-position:center,center,center 40%;
  background-repeat:no-repeat;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero h1{
  font-size:44px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.01em;
  max-width:760px;
}
.cat-hero .lede{
  margin-top:14px;
  max-width:640px;
  font-size:17px;
  color:var(--text-2);
}
.cat-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}

/* ---------- 面包屑 ---------- */
.crumb{
  border-bottom:1px solid rgba(255,255,255,.07);
  background:rgba(11,20,36,.5);
}
.crumb ol{
  display:flex;
  align-items:center;
  gap:10px;
  padding:16px 0;
  font-size:14px;
  color:var(--text-3);
  flex-wrap:wrap;
}
.crumb li{display:flex;align-items:center;gap:10px;min-width:0;}
.crumb li + li::before{content:"/";color:var(--text-3);}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--accent);text-decoration:none;}
.crumb .current{
  color:var(--text);
  max-width:240px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- 介绍段 ---------- */
.intro-panel{
  display:grid;
  grid-template-columns:1.55fr .95fr;
  gap:32px;
  padding:32px;
  align-items:center;
}
.intro-panel p{color:var(--text-2);font-size:17px;}
.intro-panel p + p{margin-top:14px;}
.intro-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.intro-figure{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/10;
}
.intro-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 300ms ease;
}
.intro-figure:hover img{transform:scale(1.03);}
.intro-figure figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:12px 14px;
  font-size:13px;
  color:var(--text-2);
  background:linear-gradient(180deg,rgba(2,4,10,0) 0%,rgba(2,4,10,.86) 100%);
}

/* ---------- 左标题右列表版式 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.35fr);
  gap:48px;
  align-items:start;
}
.split-side{position:sticky;top:112px;}
.split-side .index-num{
  display:block;
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.16em;
  color:var(--accent);
  margin-bottom:12px;
}
.split-side h2{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.01em;
}
.split-side p{
  margin-top:14px;
  color:var(--text-2);
  font-size:16px;
}
.split-divider{
  margin-top:24px;
  width:64px;
  height:3px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--primary) 0%,var(--accent) 100%);
}
.split-note{
  margin-top:24px;
  padding:18px 20px;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:14px;
  color:var(--text-2);
}
.split-note strong{color:var(--text);font-weight:600;}

.list-panel{
  padding:8px 28px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
}
.list-row{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:18px;
  padding:24px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background var(--dur) var(--ease);
}
.list-row:last-child{border-bottom:0;}
.list-row:hover{background:rgba(255,255,255,.03);}
.list-row .num{
  font-family:var(--font-num);
  font-size:26px;
  line-height:1;
  color:var(--primary-light);
  padding-top:4px;
}
.list-row h3{
  font-size:20px;
  line-height:1.5;
  font-weight:700;
}
.list-row p{
  margin-top:8px;
  font-size:15px;
  color:var(--text-2);
  max-width:560px;
}
.row-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}

/* ---------- 识别要点网格 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.check-item{
  display:flex;
  gap:14px;
  padding:22px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.check-item:hover{
  transform:translateY(-4px);
  border-color:rgba(31,224,190,.35);
  box-shadow:var(--sh-2);
}
.check-icon{
  flex:0 0 auto;
  width:38px;
  height:38px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(31,224,190,.4);
  background:rgba(31,224,190,.1);
}
.check-icon svg{width:18px;height:18px;stroke:var(--accent);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.check-item h3{font-size:17px;font-weight:700;}
.check-item p{margin-top:6px;font-size:14px;color:var(--text-2);}

/* ---------- 步骤清单 ---------- */
.steps{
  counter-reset:step;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:28px;
}
.step{
  position:relative;
  display:grid;
  grid-template-columns:44px 1fr;
  gap:18px;
  padding-bottom:26px;
}
.step:last-child{padding-bottom:0;}
.step::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  font-family:var(--font-num);
  font-size:16px;
  line-height:1;
  display:flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid rgba(31,107,255,.5);
  background:rgba(31,107,255,.14);
  color:var(--primary-light);
}
.step::after{
  content:"";
  position:absolute;
  left:21px;
  top:48px;
  bottom:0;
  width:1px;
  background:linear-gradient(180deg,rgba(31,107,255,.5) 0%,rgba(31,107,255,0) 100%);
}
.step:last-child::after{display:none;}
.step h3{font-size:17px;font-weight:700;grid-column:2;}
.step p{margin-top:6px;font-size:14px;color:var(--text-2);grid-column:2;}

/* ---------- 快捷清单 ---------- */
.quick-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
}
.quick-card{
  padding:24px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.quick-card:hover{
  transform:translateY(-4px);
  border-color:rgba(31,224,190,.35);
  box-shadow:var(--sh-2);
}
.quick-card h3{font-size:17px;font-weight:700;margin-top:14px;}
.quick-card p{margin-top:8px;font-size:14px;color:var(--text-2);}
.quick-card .num{
  font-family:var(--font-num);
  font-size:22px;
  color:var(--accent);
  letter-spacing:.06em;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.04);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item.is-open{border-color:rgba(31,224,190,.35);background:rgba(255,255,255,.06);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  padding:22px 24px;
  text-align:left;
  font-size:18px;
  font-weight:700;
  color:var(--text);
  position:relative;
}
.faq-item.is-open .faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:3px;
  background:var(--accent);
}
.faq-q:hover{color:var(--accent);}
.faq-icon{
  flex:0 0 auto;
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.faq-icon svg{width:14px;height:14px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:var(--accent);color:var(--accent);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 260ms var(--ease);
}
.faq-a-inner{
  padding:0 24px 22px;
  font-size:15px;
  color:var(--text-2);
  text-align:left;
}

/* ---------- CTA 横幅 ---------- */
.cta-banner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:28px 32px;
  border-radius:var(--r-card);
  border:1px solid rgba(31,107,255,.35);
  background:linear-gradient(120deg,rgba(31,107,255,.18) 0%,rgba(31,224,190,.08) 100%),rgba(255,255,255,.04);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
}
.cta-banner h2{font-size:24px;line-height:1.45;font-weight:700;}
.cta-banner p{margin-top:8px;font-size:15px;color:var(--text-2);max-width:560px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:32px;
  padding:64px 0 0;
  border-top:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg,rgba(11,20,36,.6) 0%,rgba(2,4,10,.95) 100%);
}
.footer-panel{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:32px;
  padding:36px;
}
.footer-col h3{
  font-size:15px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--accent);text-decoration:none;}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--text-2);max-width:300px;}
.footer-form .field{margin-bottom:14px;}
.footer-form label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px;}
.footer-form input,
.footer-form textarea{
  width:100%;
  padding:11px 14px;
  border-radius:var(--r-input);
  border:1px solid var(--line);
  background:rgba(2,4,10,.6);
  color:var(--text);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.footer-form textarea{min-height:76px;resize:vertical;}
.footer-form input::placeholder,
.footer-form textarea::placeholder{color:var(--text-3);}
.footer-form input:focus,
.footer-form textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(31,224,190,.18);
}
.form-hint{font-size:13px;color:var(--text-3);margin-top:6px;}
.form-error{font-size:13px;color:var(--danger);margin-top:6px;display:none;}
.field.has-error input{border-color:var(--danger);}
.field.has-error .form-hint{display:none;}
.field.has-error .form-error{display:block;}
.form-ok{display:none;font-size:13px;color:var(--success);margin-top:10px;}
.form-ok.is-show{display:block;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  margin-top:28px;
  padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom ul{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom a{color:var(--text-3);font-size:13px;}
.footer-bottom a:hover{color:var(--accent);text-decoration:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-link{padding:8px 10px;font-size:13px;}
  .brand-text{font-size:15px;}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991px){
  :root{--sec-y:72px;}
  .nav-links{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:58px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split-side{position:static;}
  .intro-panel{grid-template-columns:1fr;gap:24px;}
  .footer-panel{grid-template-columns:1fr 1fr;gap:28px;}
  .check-grid{grid-template-columns:1fr;}
  .cat-hero h1{font-size:36px;}
}
@media (max-width:767px){
  :root{--pad:18px;--sec-y:56px;}
  body{font-size:16px;line-height:1.7;}
  .cat-hero{padding:120px 0 40px;min-height:32vh;}
  .cat-hero h1{font-size:30px;line-height:1.3;}
  .cat-hero .lede{font-size:15px;}
  .section-head h2{font-size:24px;}
  .split-side h2{font-size:24px;}
  .list-panel{padding:6px 18px;}
  .list-row{grid-template-columns:44px 1fr;gap:14px;padding:20px 0;}
  .list-row .num{font-size:22px;}
  .list-row h3{font-size:18px;}
  .quick-grid{grid-template-columns:1fr;}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:24px 20px;}
  .cta-banner h2{font-size:20px;}
  .footer-panel{grid-template-columns:1fr;padding:24px 18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:16px;padding:18px 20px;}
  .faq-a-inner{padding:0 20px 18px;}
  .steps{padding:22px 18px;}
  .intro-panel{padding:22px 18px;}
}
@media (max-width:400px){
  .card,.list-panel,.quick-card,.check-item{padding-left:18px;padding-right:18px;}
  .btn{padding:0 20px;font-size:15px;}
  .brand-text{font-size:14px;}
}

/* roulang page: category2 */
:root{
  --bg:#060A14;
  --bg-deep:#02040A;
  --panel:#0B1424;
  --glass:rgba(255,255,255,0.055);
  --glass-line:rgba(255,255,255,0.12);
  --primary:#1F6BFF;
  --primary-dark:#1752CC;
  --accent:#1FE0BE;
  --flame:#FF7A2F;
  --text:#EAF2FF;
  --text-2:#9FB0CC;
  --text-3:#6C7C99;
  --success:#1FE0BE;
  --warning:#FFB020;
  --danger:#FF5A5A;
  --disabled:#33415C;
  --radius-card:20px;
  --radius-btn:999px;
  --radius-img:16px;
  --radius-input:12px;
  --radius-badge:8px;
  --shadow:0 8px 24px rgba(0,0,0,0.35);
  --shadow-hover:0 16px 40px rgba(31,107,255,0.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
  --container:1200px;
  --section-y:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"DIN","Barlow Condensed","Oswald","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.76;
  color:var(--text);
  background:
    radial-gradient(1200px 600px at 12% -10%, rgba(31,107,255,0.18), transparent 62%),
    radial-gradient(900px 520px at 92% 6%, rgba(31,224,190,0.12), transparent 60%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-deep) 100%);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1{font-size:44px;line-height:1.27;font-weight:800;letter-spacing:-0.01em;}
h2{font-size:32px;line-height:1.38;font-weight:800;}
h3{font-size:22px;line-height:1.45;font-weight:700;}
strong{font-weight:700;}
::selection{background:rgba(31,224,190,0.28);color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--section-y) 0;position:relative;}
.section-tight{padding:64px 0;}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.14),transparent);}
.glass{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  position:relative;
}
.glass::before{
  content:"";
  position:absolute;left:14px;right:14px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.45),transparent);
  pointer-events:none;
}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;padding:16px 0;transition:padding var(--dur) var(--ease);}
.site-header.is-scrolled{padding:8px 0;}
.nav-shell{
  display:flex;align-items:center;gap:20px;
  height:64px;padding:0 12px 0 20px;
  border-radius:var(--radius-btn);
  background:rgba(9,15,28,0.62);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:0 10px 30px rgba(0,0,0,0.42);
  transition:height var(--dur) var(--ease),background var(--dur) var(--ease);
}
.site-header.is-scrolled .nav-shell{height:54px;background:rgba(6,10,20,0.86);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(160deg,var(--primary),#0d3a9e);
  box-shadow:0 0 0 1px rgba(255,255,255,0.18) inset,0 6px 18px rgba(31,107,255,0.4);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:17px;font-weight:800;letter-spacing:0.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:var(--radius-btn);
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,0.06);}
.nav-link.is-active{color:#fff;background:rgba(31,107,255,0.18);box-shadow:inset 0 0 0 1px rgba(31,107,255,0.5);}
.nav-cta{
  margin-left:8px;flex-shrink:0;
  padding:11px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;color:#fff;
  background:linear-gradient(180deg,var(--primary),var(--primary-dark));
  box-shadow:0 0 0 1px rgba(255,255,255,0.16) inset,0 6px 18px rgba(31,107,255,0.42);
  transition:transform var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.nav-cta:hover{transform:translateY(-2px);filter:brightness(1.06);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,0.07);border:1px solid var(--glass-line);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  transition:transform var(--dur) var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.drawer{
  position:fixed;inset:0;z-index:90;display:none;
  background:rgba(3,6,14,0.94);
  backdrop-filter:blur(18px);
  padding:96px 24px 32px;
  flex-direction:column;
}
.drawer.is-open{display:flex;}
.drawer a{
  display:block;padding:16px 4px;font-size:18px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,0.08);
  transition:color var(--dur) var(--ease),padding-left var(--dur) var(--ease);
}
.drawer a:hover,.drawer a.is-active{color:#fff;padding-left:12px;}
.drawer .btn{margin-top:24px;width:100%;}
.drawer-close{
  position:absolute;top:24px;right:24px;width:46px;height:46px;border-radius:50%;
  background:rgba(255,255,255,0.08);border:1px solid var(--glass-line);
  display:grid;place-items:center;cursor:pointer;font-size:20px;color:var(--text);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:700;cursor:pointer;border:none;
  transition:transform var(--dur) var(--ease),filter var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),
             background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn-primary{
  color:#fff;
  background:linear-gradient(180deg,var(--primary),var(--primary-dark));
  box-shadow:0 0 0 1px rgba(255,255,255,0.16) inset,0 8px 22px rgba(31,107,255,0.4);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(255,255,255,0.22) inset,0 14px 34px rgba(31,107,255,0.55);}
.btn-primary:active{transform:translateY(0);filter:brightness(0.96);}
.btn-ghost{
  color:var(--text);background:transparent;border:1px solid rgba(255,255,255,0.22);
}
.btn-ghost:hover{border-color:var(--accent);background:rgba(31,224,190,0.08);color:#fff;}
.btn-sm{height:42px;padding:0 20px;font-size:15px;}
.btn-block{width:100%;}
.link-arrow{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.link-arrow:hover{color:var(--accent);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;min-height:32vh;
  display:flex;align-items:flex-end;
  padding:132px 0 48px;
  overflow:hidden;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 34%;
  transform:scale(1.04);
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(3,6,14,0.92) 0%,rgba(4,8,18,0.86) 42%,rgba(6,10,20,0.98) 100%),
    linear-gradient(90deg,rgba(31,107,255,0.22),transparent 58%);
}
.page-hero-grid{
  position:absolute;inset:0;opacity:0.28;
  background-image:linear-gradient(rgba(255,255,255,0.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,0.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,0.9),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,0.9),transparent 88%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-badge);
  background:rgba(31,224,190,0.1);
  border:1px solid rgba(31,224,190,0.32);
  color:var(--accent);font-size:12px;letter-spacing:0.06em;
  margin-bottom:18px;
}
.page-hero h1{margin-bottom:14px;max-width:820px;}
.page-hero .lede{
  font-size:17px;color:var(--text-2);max-width:700px;line-height:1.8;
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-3);margin-top:22px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--disabled);}
.breadcrumb .current{color:var(--text-2);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 通用板块头 ---------- */
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .tag{
  display:inline-block;font-size:12px;letter-spacing:0.06em;
  color:var(--accent);padding:6px 12px;border-radius:var(--radius-badge);
  background:rgba(31,224,190,0.09);border:1px solid rgba(31,224,190,0.28);
  margin-bottom:16px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--text-2);}

/* ---------- 介绍段 ---------- */
.intro-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:32px;align-items:start;}
.intro-copy p{color:var(--text-2);margin-bottom:18px;}
.intro-copy p:last-child{margin-bottom:0;}
.intro-copy strong{color:var(--text);}
.side-panel{padding:28px;}
.side-panel h3{margin-bottom:18px;font-size:18px;}
.side-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed rgba(255,255,255,0.09);
  font-size:15px;color:var(--text-2);
}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list .dot{
  flex-shrink:0;width:8px;height:8px;border-radius:50%;margin-top:9px;
  background:var(--accent);box-shadow:0 0 0 4px rgba(31,224,190,0.14);
}

/* ---------- 交替图文 ---------- */
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:56px 0;border-top:1px solid rgba(255,255,255,0.08);
}
.alt-row:first-of-type{border-top:none;padding-top:0;}
.alt-row.reverse .alt-media{order:2;}
.alt-media{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
  aspect-ratio:16/10;
}
.alt-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease;}
.alt-media:hover img{transform:scale(1.03);}
.alt-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,0.05),rgba(6,10,20,0.55));
}
.alt-badge{
  position:absolute;left:16px;top:16px;z-index:3;
  font-size:12px;letter-spacing:0.06em;padding:6px 12px;
  border-radius:var(--radius-badge);
  background:rgba(9,15,28,0.78);border:1px solid var(--glass-line);
  color:var(--accent);backdrop-filter:blur(8px);
}
.alt-body h3{margin-bottom:14px;}
.alt-body p{color:var(--text-2);margin-bottom:20px;}
.mini-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px 0;font-size:15px;color:var(--text-2);
}
.mini-list svg{width:18px;height:18px;flex-shrink:0;margin-top:5px;stroke:var(--accent);}

/* ---------- 数据条 ---------- */
.scoreboard{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--glass-line);
  background:linear-gradient(180deg,rgba(11,20,36,0.9),rgba(6,10,20,0.7));
}
.score-cell{
  padding:32px 24px;border-right:1px solid rgba(255,255,255,0.07);
  transition:background var(--dur) var(--ease);
}
.score-cell:last-child{border-right:none;}
.score-cell:hover{background:rgba(31,107,255,0.09);}
.score-num{
  font-family:var(--font-num);font-size:44px;line-height:1;font-weight:700;
  letter-spacing:-0.02em;color:#fff;display:block;margin-bottom:10px;
}
.score-num em{font-style:normal;font-size:20px;color:var(--accent);margin-left:4px;}
.score-label{font-size:14px;color:var(--text-3);}

/* ---------- 清单 ---------- */
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 22px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-line);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.check-item:hover{transform:translateY(-4px);border-color:rgba(31,224,190,0.35);box-shadow:var(--shadow-hover);}
.check-item svg{width:20px;height:20px;flex-shrink:0;margin-top:4px;stroke:var(--accent);}
.check-item h4{font-size:16px;font-weight:700;margin-bottom:6px;}
.check-item p{font-size:14px;color:var(--text-3);line-height:1.65;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-line);
  overflow:hidden;position:relative;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--accent),var(--primary));
  opacity:0;transition:opacity var(--dur) var(--ease);
}
.faq-item.is-open::before{opacity:1;}
.faq-item.is-open{border-color:rgba(31,224,190,0.35);background:rgba(31,107,255,0.07);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;background:transparent;border:none;cursor:pointer;
  text-align:left;font-size:17px;font-weight:700;color:var(--text);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:#fff;}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  border:1px solid rgba(255,255,255,0.2);
  display:grid;place-items:center;position:relative;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
  transition:transform 260ms var(--ease),opacity 260ms var(--ease);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 260ms var(--ease);
}
.faq-a p{
  padding:0 24px 24px;color:var(--text-2);font-size:15.5px;line-height:1.8;
}

/* ---------- CTA 横幅 ---------- */
.cta-banner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:36px 40px;border-radius:var(--radius-card);
  background:
    linear-gradient(120deg,rgba(31,107,255,0.22),rgba(31,224,190,0.1) 70%),
    rgba(11,20,36,0.86);
  border:1px solid rgba(31,107,255,0.32);
  box-shadow:0 18px 44px rgba(0,0,0,0.4);
  position:relative;overflow:hidden;
}
.cta-banner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,224,190,0.22),transparent 66%);
  pointer-events:none;
}
.cta-banner h2{font-size:26px;margin-bottom:8px;}
.cta-banner p{color:var(--text-2);font-size:15px;}
.cta-banner .btn{flex-shrink:0;position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{padding:56px 0 32px;border-top:1px solid rgba(255,255,255,0.08);background:rgba(3,6,14,0.7);margin-top:96px;}
.footer-panel{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;
  padding:36px 32px;margin-bottom:28px;
}
.footer-col h3{font-size:16px;margin-bottom:16px;color:var(--text);}
.footer-col p{font-size:14px;color:var(--text-3);margin-top:14px;line-height:1.75;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--text-2);transition:color var(--dur) var(--ease);}
.footer-col ul a:hover{color:var(--accent);}
.footer-brand .brand{margin-bottom:4px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:7px;}
.field input,.field textarea{
  width:100%;padding:11px 14px;border-radius:var(--radius-input);
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.14);
  color:var(--text);font-size:14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field textarea{min-height:88px;resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(31,224,190,0.16);
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.form-hint{font-size:12.5px;color:var(--text-3);margin-top:6px;}
.form-hint.is-error{color:var(--danger);font-size:13px;}
.form-ok{font-size:13.5px;color:var(--success);margin-top:10px;display:none;}
.form-ok.is-show{display:block;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding-top:20px;border-top:1px solid rgba(255,255,255,0.07);
  font-size:13px;color:var(--text-3);flex-wrap:wrap;
}
.footer-bottom ul{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;color:#fff;
  background:linear-gradient(180deg,var(--primary),var(--primary-dark));
  box-shadow:0 0 0 1px rgba(255,255,255,0.18) inset,0 10px 30px rgba(31,107,255,0.45),0 0 0 0 rgba(255,122,47,0.5);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),filter var(--dur) var(--ease);
  animation:pulse 2.8s infinite;
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{filter:brightness(1.06);}
@keyframes pulse{
  0%{box-shadow:0 0 0 1px rgba(255,255,255,0.18) inset,0 10px 30px rgba(31,107,255,0.45),0 0 0 0 rgba(255,122,47,0.42);}
  70%{box-shadow:0 0 0 1px rgba(255,255,255,0.18) inset,0 10px 30px rgba(31,107,255,0.45),0 0 0 16px rgba(255,122,47,0);}
  100%{box-shadow:0 0 0 1px rgba(255,255,255,0.18) inset,0 10px 30px rgba(31,107,255,0.45),0 0 0 0 rgba(255,122,47,0);}
}
.mobile-bar{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  h1{font-size:38px;}
  h2{font-size:28px;}
  .intro-grid{grid-template-columns:1fr;}
  .scoreboard{grid-template-columns:repeat(2,1fr);}
  .score-cell:nth-child(2){border-right:none;}
  .score-cell:nth-child(1),.score-cell:nth-child(2){border-bottom:1px solid rgba(255,255,255,0.07);}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-shell{padding:0 12px;}
  .alt-row{grid-template-columns:1fr;gap:28px;padding:44px 0;}
  .alt-row.reverse .alt-media{order:0;}
  .checklist{grid-template-columns:1fr;}
  .footer-panel{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--section-y:56px;}
  body{font-size:16px;line-height:1.7;}
  h1{font-size:30px;line-height:1.33;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .container{padding:0 18px;}
  .page-hero{min-height:32vh;padding:112px 0 40px;}
  .page-hero h1{max-width:100%;}
  .scoreboard{grid-template-columns:1fr;}
  .score-cell{border-right:none;border-bottom:1px solid rgba(255,255,255,0.07);padding:24px 20px;}
  .score-cell:last-child{border-bottom:none;}
  .score-num{font-size:36px;}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:28px 22px;gap:20px;}
  .cta-banner .btn{width:100%;}
  .footer-panel{grid-template-columns:1fr;padding:26px 20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;position:fixed;left:16px;right:16px;bottom:16px;z-index:70;
    opacity:0;transform:translateY(20px);pointer-events:none;
    transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
  }
  .mobile-bar.is-show{opacity:1;transform:translateY(0);pointer-events:auto;}
  .mobile-bar .btn{width:100%;box-shadow:0 12px 32px rgba(0,0,0,0.5),0 0 0 1px rgba(255,255,255,0.16) inset;}
  .site-footer{margin-top:56px;}
}
@media (max-width:400px){
  .glass,.check-item,.cta-banner,.side-panel{padding:18px;}
  .footer-panel{padding:18px;}
  .btn{padding:0 20px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#02040A;
  --bg-1:#060A14;
  --panel:#0B1424;
  --primary:#1F6BFF;
  --primary-deep:#1553CC;
  --accent:#1FE0BE;
  --hot:#FF7A2F;
  --text:#EAF2FF;
  --text-2:#9FB0CC;
  --text-3:#6C7C99;
  --glass:rgba(255,255,255,0.055);
  --glass-line:rgba(255,255,255,0.12);
  --glass-line-strong:rgba(31,224,190,0.35);
  --ok:#1FE0BE;
  --warn:#FFB020;
  --err:#FF5A5A;
  --off:#33415C;
  --r-card:20px;
  --r-btn:999px;
  --r-img:16px;
  --r-input:12px;
  --r-badge:8px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(31,107,255,.22);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-6:96px;
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"DIN","Barlow Condensed","Oswald","Helvetica Neue",Arial,sans-serif;
  --max:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:30px;
  color:var(--text);
  background:
    radial-gradient(1100px 620px at 50% -8%, #0C1729 0%, #060A14 46%, #02040A 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.01em;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
svg{display:block;}
::selection{background:rgba(31,107,255,.35);color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

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

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:70;
  padding-top:16px;
  transition:padding-top var(--t);
}
.nav-capsule{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
  padding:0 14px 0 20px;
  border-radius:var(--r-btn);
  border:1px solid var(--glass-line);
  background:rgba(11,20,36,.62);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-1);
  transition:height var(--t),background var(--t),box-shadow var(--t),border-color var(--t);
}
body.is-scrolled .nav-capsule{
  height:54px;
  background:rgba(6,10,20,.88);
  box-shadow:0 12px 32px rgba(0,0,0,.5);
  border-color:rgba(255,255,255,.16);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;flex:0 0 auto;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(145deg,var(--primary),#0C3EA8);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 0 0 1px rgba(31,224,190,.28);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{font-size:15px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 13px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--r-btn);
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.07);}
.nav-link.is-active{color:var(--text);font-weight:700;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;
  height:2px;border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 10px rgba(31,224,190,.7);
}
.nav-side{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.05);
  position:relative;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:2px;border-radius:2px;
  background:var(--text);
  transition:transform var(--t),opacity var(--t);
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:27px;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.drawer{
  position:fixed;
  inset:0;
  z-index:60;
  padding:104px 24px 32px;
  background:rgba(2,4,10,.96);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  display:flex;
  flex-direction:column;
  gap:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-12px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-links{display:flex;flex-direction:column;gap:20px;}
.drawer-links a{
  font-size:19px;
  font-weight:700;
  color:var(--text);
  padding-bottom:14px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer-links a.is-active{color:var(--accent);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t),filter var(--t);
}
.btn-primary{
  color:#FFFFFF;
  background:linear-gradient(180deg,#2C77FF 0%,var(--primary) 52%,var(--primary-deep) 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 8px 22px rgba(31,107,255,.32);
}
.btn-primary:hover{
  color:#FFFFFF;
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 14px 34px rgba(31,107,255,.48),0 0 0 1px rgba(31,224,190,.4);
}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.22);
}
.btn-ghost:hover{
  color:var(--text);
  border-color:var(--accent);
  background:rgba(31,224,190,.08);
  transform:translateY(-2px);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 通用 ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
}
.section{padding:var(--sp-6) 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  margin-bottom:18px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--accent);
  border-radius:var(--r-badge);
  background:rgba(31,224,190,.09);
  border:1px solid rgba(31,224,190,.3);
}
h2{font-size:32px;line-height:44px;}
h3{font-size:22px;line-height:32px;}
.lead{font-size:17px;line-height:30px;color:var(--text-2);}
.muted{color:var(--text-3);font-size:14px;line-height:22px;}
.num{font-family:var(--font-num);font-weight:700;letter-spacing:.02em;}

/* ---------- 面包屑 ---------- */
.crumbs{padding-top:112px;}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li::after{content:"/";color:var(--off);}
.crumbs li:last-child::after{content:"";}
.crumbs a{color:var(--text-2);}
.crumbs .current{
  color:var(--text);
  max-width:280px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- Hero（分类页压缩） ---------- */
.cat-hero{
  position:relative;
  min-height:32vh;
  display:flex;
  align-items:flex-end;
  margin-top:18px;
  padding:72px 0 44px;
  border-radius:28px;
  overflow:hidden;
  isolation:isolate;
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center 34%;
  transform:scale(1.04);
  z-index:-2;
}
.cat-hero::after{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(2,4,10,.86) 0%,rgba(6,10,20,.94) 60%,rgba(2,4,10,.98) 100%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.028) 0 1px,transparent 1px 72px);
  z-index:-1;
}
.cat-hero h1{
  font-size:44px;
  line-height:56px;
  max-width:820px;
  margin-bottom:14px;
}
.cat-hero .hero-sub{
  max-width:640px;
  font-size:17px;
  color:var(--text-2);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;
  font-size:13px;
  color:var(--text-2);
  border-radius:var(--r-badge);
  background:rgba(255,255,255,.05);
  border:1px solid var(--glass-line);
}
.tag-cyan{color:var(--accent);border-color:rgba(31,224,190,.32);background:rgba(31,224,190,.08);}

/* ---------- 介绍段 ---------- */
.intro-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
}
.intro-text p + p{margin-top:18px;}
.figure{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-1);
}
.figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform 300ms ease;
}
.figure:hover img{transform:scale(1.03);}

/* ---------- 数据条 ---------- */
.scoreboard{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  margin-top:44px;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.08);
}
.score-item{
  padding:26px 22px;
  background:rgba(11,20,36,.86);
  text-align:center;
}
.score-item .value{
  font-family:var(--font-num);
  font-size:40px;
  line-height:44px;
  font-weight:700;
  color:var(--accent);
}
.score-item .value small{font-size:18px;margin-left:2px;}
.score-item .label{margin-top:8px;font-size:14px;color:var(--text-3);}

/* ---------- 时间轴版式 ---------- */
.timeline{position:relative;padding-left:88px;margin-top:8px;}
.timeline::before{
  content:"";
  position:absolute;
  left:23px;top:12px;bottom:12px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,rgba(31,224,190,.65),rgba(31,107,255,.35) 55%,rgba(31,107,255,0));
}
.tl-item{position:relative;margin-bottom:26px;}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  position:absolute;
  left:-88px;top:8px;
  width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:50%;
  font-family:var(--font-num);
  font-size:17px;
  font-weight:700;
  color:var(--accent);
  background:rgba(11,20,36,.95);
  border:1px solid rgba(31,224,190,.4);
  box-shadow:0 0 0 6px rgba(6,10,20,.9),0 0 22px rgba(31,224,190,.18);
}
.tl-card{
  padding:24px 26px;
  border-radius:var(--r-card);
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(15px);
  -webkit-backdrop-filter:blur(15px);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:var(--glass-line-strong);
  box-shadow:var(--sh-2);
}
.tl-card h3{margin-bottom:8px;}
.tl-card p{color:var(--text-2);font-size:16px;line-height:28px;}
.tl-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.point{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 12px;
  font-size:13px;
  color:var(--text-2);
  border-radius:var(--r-badge);
  background:rgba(31,107,255,.1);
  border:1px solid rgba(31,107,255,.3);
}
.point svg{width:13px;height:13px;stroke:var(--accent);}

/* ---------- 条目清单 ---------- */
.list-panel{
  margin-top:26px;
  padding:8px 26px;
  border-radius:var(--r-card);
}
.list-row{
  display:flex;
  align-items:center;
  gap:18px;
  padding:20px 0;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.list-row:last-child{border-bottom:0;}
.list-row .idx{
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  color:var(--primary);
  flex:0 0 40px;
}
.list-row .row-main{flex:1 1 auto;min-width:0;}
.list-row h4{font-size:17px;font-weight:700;margin-bottom:4px;}
.list-row p{font-size:14px;color:var(--text-3);line-height:22px;}
.list-row .row-side{
  flex:0 0 auto;
  font-size:13px;
  color:var(--accent);
  padding:5px 12px;
  border-radius:var(--r-badge);
  background:rgba(31,224,190,.08);
  border:1px solid rgba(31,224,190,.28);
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  position:relative;
  border-radius:var(--r-card);
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.045);
  overflow:hidden;
  transition:border-color var(--t),background var(--t);
}
.faq-item::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;
  width:3px;
  background:var(--accent);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);
}
.faq-item.is-open{border-color:rgba(31,224,190,.34);background:rgba(31,224,190,.05);}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 24px;
  text-align:left;
  font-size:18px;
  font-weight:700;
  color:var(--text);
}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.22);
  transition:transform 260ms cubic-bezier(.2,.7,.3,1),border-color var(--t),background var(--t);
}
.faq-icon svg{width:13px;height:13px;stroke:var(--accent);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:rgba(31,224,190,.5);background:rgba(31,224,190,.1);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 260ms cubic-bezier(.2,.7,.3,1);
}
.faq-a p{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:27px;
  color:var(--text-2);
  text-align:left;
}

/* ---------- CTA 横幅 ---------- */
.cta-banner{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  padding:44px 40px;
  border-radius:26px;
  border:1px solid var(--glass-line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
}
.cta-banner::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  z-index:-2;
}
.cta-banner::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(6,10,20,.96) 0%,rgba(11,20,36,.9) 55%,rgba(31,107,255,.28) 100%);
  z-index:-1;
}
.cta-banner h2{font-size:26px;line-height:36px;margin-bottom:8px;}
.cta-banner p{color:var(--text-2);font-size:15px;max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  padding:64px 0 32px;
  border-top:1px solid rgba(255,255,255,.07);
  background:linear-gradient(180deg,rgba(11,20,36,.5),rgba(2,4,10,.9));
}
.footer-panel{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.4fr;
  gap:32px;
  padding:36px;
}
.footer-col h3{
  font-size:15px;
  margin-bottom:16px;
  color:var(--text);
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--accent);}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:24px;color:var(--text-3);}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:7px;}
.field input,.field textarea{
  width:100%;
  padding:11px 14px;
  border-radius:var(--r-input);
  border:1px solid var(--glass-line);
  background:rgba(2,4,10,.6);
  color:var(--text);
  transition:border-color var(--t),box-shadow var(--t);
}
.field input::placeholder,.field textarea::placeholder{color:#55637d;}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(31,224,190,.18);
}
.field textarea{min-height:88px;resize:vertical;line-height:24px;}
.form-hint{font-size:12px;color:var(--text-3);margin-top:6px;line-height:18px;}
.form-hint.is-error{color:var(--err);font-size:13px;}
.form-ok{display:none;font-size:13px;color:var(--ok);margin-top:10px;}
.form-ok.is-show{display:block;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:26px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom ul{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom a{color:var(--text-3);font-size:13px;}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:28px;bottom:28px;
  z-index:65;
  opacity:0;
  visibility:hidden;
  transform:translateY(14px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
  box-shadow:0 0 0 0 rgba(255,122,47,.6),0 14px 34px rgba(31,107,255,.4);
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);animation:pulseRing 2.6s infinite;}
@keyframes pulseRing{
  0%{box-shadow:0 0 0 0 rgba(255,122,47,.5),0 14px 34px rgba(31,107,255,.4);}
  70%{box-shadow:0 0 0 14px rgba(255,122,47,0),0 14px 34px rgba(31,107,255,.4);}
  100%{box-shadow:0 0 0 0 rgba(255,122,47,0),0 14px 34px rgba(31,107,255,.4);}
}
.float-bar{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links{gap:0;}
  .nav-link{padding:9px 10px;font-size:14px;}
  .score-item .value{font-size:34px;line-height:38px;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .nav-capsule{justify-content:space-between;}
  .intro-grid{grid-template-columns:1fr;gap:28px;}
  .footer-panel{grid-template-columns:1fr 1fr;}
}
@media (max-width:991px){
  .nav-cta{display:none;}
  .scoreboard{grid-template-columns:repeat(2,1fr);}
  h2{font-size:28px;line-height:38px;}
  .cat-hero h1{font-size:36px;line-height:46px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:28px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .crumbs{padding-top:98px;}
  .cat-hero{min-height:32vh;padding:56px 0 34px;border-radius:22px;}
  .cat-hero h1{font-size:30px;line-height:40px;}
  .nav-capsule{height:58px;padding:0 10px 0 14px;}
  .brand-text{font-size:14px;}
  .timeline{padding-left:60px;}
  .timeline::before{left:19px;}
  .tl-node{left:-60px;width:40px;height:40px;font-size:15px;box-shadow:0 0 0 5px rgba(6,10,20,.9),0 0 18px rgba(31,224,190,.18);}
  .tl-card{padding:20px 20px;}
  .list-panel{padding:4px 18px;}
  .list-row{flex-wrap:wrap;gap:10px;}
  .list-row .row-side{order:3;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a p{padding:0 18px 18px 18px;}
  .cta-banner{padding:30px 22px;border-radius:20px;}
  .cta-banner h2{font-size:22px;line-height:32px;}
  .footer-panel{grid-template-columns:1fr;padding:26px 20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{
    right:16px;left:16px;bottom:16px;
    width:auto;
    height:52px;
  }
  .float-cta.is-show{animation:none;}
}
@media (max-width:520px){
  .scoreboard{grid-template-columns:1fr;}
  .cat-hero h1{font-size:27px;line-height:36px;}
  .tl-card h3{font-size:19px;line-height:28px;}
}
@media (max-width:400px){
  .tl-card{padding:18px;}
  .list-panel{padding:4px 14px;}
  .cta-banner{padding:24px 18px;}
}