/* roulang page: index */
:root{
  --c-primary:#FF5A36;
  --c-primary-dark:#E04624;
  --c-primary-soft:rgba(255,90,54,.10);
  --c-accent:#0FB9AE;
  --c-accent-dark:#0A9489;
  --c-accent-soft:rgba(15,185,174,.10);
  --c-dark:#16121F;
  --c-dark-2:#241C36;
  --c-bg:#FBF9F6;
  --c-bg-alt:#F3EFEA;
  --c-card:#FFFFFF;
  --c-ink:#1B1725;
  --c-ink-2:#5C5668;
  --c-ink-3:#8A8494;
  --c-on-dark:#F5F2EE;
  --c-on-dark-2:#C9C3D2;
  --c-line:#E6E0D8;
  --c-line-dark:rgba(255,255,255,.14);
  --ok:#1FA97A;
  --warn:#E8A33D;
  --err:#D8402F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-tag:6px;
  --r-input:10px;
  --sh-1:0 2px 10px rgba(22,18,31,.05);
  --sh-2:0 10px 28px rgba(22,18,31,.10);
  --sh-3:0 18px 48px rgba(22,18,31,.16);
  --t:.22s cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","SF Pro Display","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);letter-spacing:.02em}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-primary{
  background-image:linear-gradient(135deg,#FF5A36,#FF7A46);
  background-color:var(--c-primary);color:#fff;
  box-shadow:0 6px 18px rgba(255,90,54,.24);
}
.btn-primary:hover{background-image:linear-gradient(135deg,#E04624,#EE6A38);transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,90,54,.30)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,90,54,.22)}
.btn-ghost{
  background:transparent;color:var(--c-accent);border:1px solid var(--c-accent);
}
.btn-ghost:hover{background:var(--c-accent-soft);color:var(--c-accent-dark)}
.btn-ghost-light{
  background:transparent;color:var(--c-on-dark);border:1px solid rgba(255,255,255,.55);
}
.btn-ghost-light:hover{background:rgba(255,255,255,.10);border-color:#fff}
.btn-lg{height:52px;padding:0 30px;font-size:16px;border-radius:999px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:15px;
}
.btn-text span{transition:transform var(--t)}
.btn-text:hover span{transform:translateX(4px)}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  height:72px;
  background:rgba(22,18,31,.34);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  box-shadow:0 6px 24px rgba(22,18,31,.14);
  transition:height .25s ease,background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(22,18,31,.96);
  border-bottom-color:rgba(255,255,255,.08);
}
.header-inner{
  height:100%;display:flex;align-items:center;gap:28px;
}
.logo{display:flex;align-items:baseline;gap:8px;flex-shrink:0}
.logo-main{
  font-size:19px;font-weight:700;color:#fff;letter-spacing:.01em;
}
.logo-main em{font-style:normal;color:var(--c-primary)}
.logo-sub{
  font-size:12px;color:var(--c-on-dark-2);letter-spacing:.06em;
  padding-left:9px;border-left:1px solid rgba(255,255,255,.24);
  transition:opacity .25s ease;
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 12px;font-size:14.5px;color:var(--c-on-dark);
  border-radius:8px;transition:color var(--t),background var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scaleX(0);
  width:60%;height:2px;background:var(--c-accent);border-radius:2px;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--c-accent)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.is-active{color:var(--c-accent)}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;color:var(--c-on-dark);border:1px solid rgba(255,255,255,.20);
  transition:background var(--t),color var(--t),border-color var(--t);
}
.icon-btn:hover{color:var(--c-accent);border-color:var(--c-accent);background:rgba(15,185,174,.10)}
.search-bar{
  display:none;align-items:center;gap:8px;
  width:260px;height:40px;padding:0 12px;
  border-radius:var(--r-input);border:1px solid rgba(255,255,255,.20);
  background:rgba(255,255,255,.06);
  transition:border-color var(--t),box-shadow var(--t);
}
.search-bar.is-open{display:flex}
.search-bar:focus-within{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(15,185,174,.18)}
.search-bar input{
  flex:1;border:0;background:transparent;color:#fff;font-size:14px;outline:none;
}
.search-bar input::placeholder{color:rgba(201,195,210,.8)}
.burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid rgba(255,255,255,.20);color:#fff;
}
.burger span{display:block;width:18px;height:2px;background:currentColor;position:relative;transition:background var(--t)}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;transition:transform var(--t);
}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.burger.is-open span{background:transparent}
.burger.is-open span::before{transform:translateY(6px) rotate(45deg)}
.burger.is-open span::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{
  position:fixed;inset:60px 0 0 0;z-index:85;
  background:rgba(22,18,31,.97);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  padding:24px;display:none;flex-direction:column;
  overflow-y:auto;
}
.mobile-panel.is-open{display:flex}
.mobile-panel a.m-link{
  display:flex;align-items:center;min-height:52px;
  font-size:16px;color:var(--c-on-dark);
  border-bottom:1px solid rgba(255,255,255,.10);
}
.mobile-panel a.m-link.is-active{color:var(--c-accent)}
.mobile-panel .m-search{display:flex;gap:8px;margin:20px 0 8px}
.mobile-panel .m-search input{
  flex:1;height:44px;padding:0 12px;border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.20);background:rgba(255,255,255,.06);
  color:#fff;outline:none;font-size:14px;
}
.mobile-panel .m-search input:focus{border-color:var(--c-accent)}
.mobile-panel .btn{margin-top:auto}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-color:var(--c-dark);
  background-image:
    radial-gradient(circle at 84% 12%, rgba(255,90,54,.26), rgba(255,90,54,0) 52%),
    radial-gradient(circle at 12% 88%, rgba(15,185,174,.16), rgba(15,185,174,0) 55%),
    linear-gradient(160deg,#16121F 12%,#241C36 96%);
  padding:152px 0 132px;
  color:var(--c-on-dark);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:48px;
  background:var(--c-bg);
  clip-path:polygon(0 100%,100% 0,100% 100%,0 100%);
}
.hero-grid{
  display:grid;grid-template-columns:58fr 42fr;gap:56px;align-items:center;
  position:relative;z-index:2;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(15,185,174,.62);
  background:rgba(15,185,174,.10);
  color:#7FE4DC;font-size:12px;letter-spacing:.04em;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:block}
.hero h1{
  margin-top:22px;
  font-size:44px;line-height:1.28;font-weight:700;letter-spacing:.01em;
  color:#fff;
}
.hero h1 .hl{
  color:var(--c-primary);
  box-shadow:inset 0 -10px 0 rgba(255,90,54,.22);
}
.hero-sub{
  margin-top:20px;max-width:560px;
  font-size:17px;line-height:1.85;color:var(--c-on-dark-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:30px;font-size:13px;color:var(--c-on-dark-2);
}
.trust-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.28)}
.trust-row b{color:#fff;font-weight:600}
.hero-visual{position:relative}
.visual-card{
  border-radius:18px;overflow:hidden;
  background:#fff;box-shadow:0 18px 48px rgba(0,0,0,.32);
}
.visual-card img{
  width:100%;aspect-ratio:4/5;object-fit:cover;
}
.visual-caption{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px;background:#fff;color:var(--c-ink);
  font-size:14px;font-weight:600;
}
.visual-caption small{font-size:12px;color:var(--c-ink-3);font-weight:400}
.float-card{
  position:absolute;right:-10px;bottom:-26px;
  min-width:196px;padding:14px 16px;border-radius:12px;
  background:#fff;color:var(--c-ink);box-shadow:var(--sh-3);
  border:1px solid var(--c-line);
}
.float-card .fc-top{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--c-ink-3)}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(31,169,122,.14)}
.float-card strong{display:block;margin-top:6px;font-size:15px;color:var(--c-ink)}
.float-card span.fc-time{display:block;margin-top:2px;font-size:12px;color:var(--c-ink-3);font-family:var(--font-num)}

/* ---------- 区块通用 ---------- */
.section{padding:96px 0}
.section--alt{background:var(--c-bg-alt)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:30px;line-height:1.32;font-weight:700;letter-spacing:.01em;
}
.section-head p{margin-top:10px;font-size:15px;color:var(--c-ink-2);max-width:620px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--c-accent-dark);margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-accent);border-radius:2px}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 入口网格 ---------- */
.entry-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.entry-card{
  position:relative;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 24px 22px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  overflow:hidden;
}
.entry-card::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--c-primary);border-radius:0 3px 3px 0;
  transform:scaleY(0);transform-origin:center;transition:transform var(--t);
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DCD4CA}
.entry-card:hover::before{transform:scaleY(1)}
.entry-icon{
  width:48px;height:48px;border-radius:12px;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;margin-bottom:18px;
}
.entry-card h3{
  font-size:18px;line-height:1.45;font-weight:600;color:var(--c-ink);
  transition:color var(--t);
}
.entry-card:hover h3{color:var(--c-primary-dark)}
.entry-card p{
  margin-top:10px;font-size:14px;line-height:1.8;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-link{
  margin-top:auto;padding-top:18px;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-accent-dark);
}
.entry-link span{transition:transform var(--t)}
.entry-card:hover .entry-link span{transform:translateX(4px)}
.entry-card--wide{
  grid-column:1 / -1;
  flex-direction:row;align-items:center;gap:40px;
  padding:32px;
  background:linear-gradient(0deg,#fff,#fff);
}
.entry-card--wide::before{top:24px;bottom:24px}
.entry-card--wide .wide-text{flex:1 1 58%}
.entry-card--wide h3{font-size:22px}
.entry-card--wide p{
  -webkit-line-clamp:3;font-size:15px;color:var(--c-ink-2);margin-top:12px;
}
.entry-card--wide .wide-media{
  flex:1 1 42%;border-radius:var(--r-img);overflow:hidden;
}
.entry-card--wide .wide-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform var(--t);
}
.entry-card--wide:hover .wide-media img{transform:scale(1.03)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-tag);font-size:12px;letter-spacing:.02em;
  background:var(--c-accent-soft);color:var(--c-accent-dark);
}
.tag.is-primary{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.tag.is-ok{background:rgba(31,169,122,.12);color:#17805C}
.tag.is-warn{background:rgba(232,163,61,.16);color:#9C6A16}

/* ---------- 评价轮播 ---------- */
.reviews{
  background:var(--c-dark);color:var(--c-on-dark);
  padding:96px 0;position:relative;overflow:hidden;
}
.reviews::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(15,185,174,.16),rgba(15,185,174,0) 70%);
}
.reviews .section-head{position:relative;z-index:2}
.reviews .section-head h2{color:#fff}
.reviews .section-head p{color:var(--c-on-dark-2)}
.review-nav{display:flex;gap:10px}
.round-btn{
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(255,255,255,.28);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background var(--t),border-color var(--t),transform var(--t);
}
.round-btn:hover{background:rgba(255,255,255,.10);border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-1px)}
.review-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:8px;position:relative;z-index:2;
  scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 calc((100% - 48px)/3);
  scroll-snap-align:start;
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.14);
  border-left:4px solid var(--c-accent);
  border-radius:var(--r-card);
  padding:28px 26px 24px;
  position:relative;
}
.review-quote{
  position:absolute;right:20px;top:8px;font-size:64px;line-height:1;
  color:#fff;opacity:.10;font-family:Georgia,serif;pointer-events:none;
}
.review-card p{font-size:15px;line-height:1.9;color:var(--c-on-dark-2)}
.review-person{
  display:flex;align-items:center;gap:12px;margin-top:22px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.10);
}
.avatar{
  width:36px;height:36px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,#FF5A36,#0FB9AE);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:600;color:#fff;
}
.review-person strong{display:block;font-size:14px;color:#fff;font-weight:600}
.review-person span{font-size:12px;color:rgba(201,195,210,.9)}
.dots{display:flex;gap:6px;margin-top:24px;position:relative;z-index:2}
.dots i{display:block;height:4px;width:22px;border-radius:2px;background:rgba(255,255,255,.20);transition:background var(--t)}
.dots i.on{background:var(--c-primary)}

/* ---------- 保障条 ---------- */
.guarantee{background:var(--c-bg-alt);padding:56px 0}
.guarantee-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.guarantee-item{
  padding:6px 26px;border-left:1px solid var(--c-line);
}
.guarantee-item:first-child{border-left:0;padding-left:0}
.g-icon{
  width:34px;height:34px;border-radius:10px;
  background:rgba(15,185,174,.12);color:var(--c-accent-dark);
  display:flex;align-items:center;justify-content:center;font-size:15px;margin-bottom:12px;
}
.guarantee-item h4{font-size:16px;font-weight:600}
.guarantee-item p{margin-top:6px;font-size:13px;line-height:1.7;color:var(--c-ink-2)}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.post-cover{overflow:hidden;background:#EFEAE3}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform var(--t)}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:20px 22px 18px;display:flex;flex-direction:column;flex:1}
.post-body h3{
  margin-top:12px;font-size:18px;line-height:1.5;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--t);
}
.post-card:hover .post-body h3{color:var(--c-primary-dark)}
.post-excerpt{
  margin-top:10px;font-size:14px;line-height:1.8;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:16px;margin-top:18px;
  border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--c-ink-3);
}
.post-meta .arrow{color:var(--c-primary);font-size:14px;transition:transform var(--t)}
.post-card:hover .post-meta .arrow{transform:translateX(4px)}
.post-card--static .post-cover img{filter:saturate(.96)}
.empty-state{
  border:1px dashed #D9D2C8;border-radius:var(--r-card);
  background:rgba(255,255,255,.6);
  padding:56px 24px;text-align:center;
}
.empty-state svg{width:96px;height:96px;margin:0 auto 16px;display:block;color:#C8C0B5}
.empty-state p{font-size:15px;color:var(--c-ink-2);margin-bottom:16px}

/* ---------- 双栏说明 ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;
}
.split h2{font-size:30px;line-height:1.34;font-weight:700}
.split .lead{margin-top:16px;font-size:16px;line-height:1.9;color:var(--c-ink-2);max-width:520px}
.split .btn-ghost{margin-top:26px}
.rule-list{margin-top:22px;display:grid;gap:12px}
.rule-list li{position:relative;padding-left:20px;font-size:15px;color:var(--c-ink-2);line-height:1.75}
.rule-list li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;
  background:var(--c-accent);border-radius:1px;
}
.steps-panel{
  background:transparent;border:0;padding:0;
}
.steps-panel img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-img);margin-bottom:26px;
  box-shadow:var(--sh-1);
}
.steps{position:relative;display:grid;gap:24px}
.steps::before{
  content:"";position:absolute;left:16px;top:12px;bottom:12px;
  border-left:1px dashed #D6CEC4;
}
.step{position:relative;display:flex;gap:16px}
.step-num{
  width:32px;height:32px;flex-shrink:0;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:600;font-family:var(--font-num);
  position:relative;z-index:2;
}
.step h4{font-size:17px;font-weight:600;line-height:1.5}
.step p{margin-top:6px;font-size:14px;line-height:1.8;color:var(--c-ink-2)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-layout h2{font-size:30px;line-height:1.34;font-weight:700}
.faq-layout .faq-side p{margin-top:14px;font-size:15px;color:var(--c-ink-2);line-height:1.85}
.faq-list{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-top:1px solid var(--c-line)}
.faq-item:first-child{border-top:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);
  transition:color var(--t),background var(--t);
}
.faq-q:hover{color:var(--c-primary-dark);background:#FCFAF7}
.faq-mark{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;
  color:var(--c-ink-3);font-size:14px;line-height:1;
  transition:transform var(--t),color var(--t),border-color var(--t);
}
.faq-item.is-open .faq-q{color:var(--c-primary-dark)}
.faq-item.is-open .faq-mark{transform:rotate(45deg);color:var(--c-primary);border-color:var(--c-primary)}
.faq-a{
  display:none;padding:0 24px 22px 24px;
  font-size:15px;line-height:1.8;color:var(--c-ink-2);
}
.faq-item.is-open .faq-a{display:block}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background-color:var(--c-dark);
  background-image:radial-gradient(circle at 88% 20%,rgba(255,90,54,.24),rgba(255,90,54,0) 55%),linear-gradient(150deg,#16121F,#241C36 92%);
  border-radius:20px;color:var(--c-on-dark);
  padding:48px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-band h2{font-size:28px;line-height:1.38;font-weight:700;color:#fff}
.cta-band p{margin-top:12px;font-size:15px;color:var(--c-on-dark-2);max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch;flex-shrink:0;min-width:200px}
.cta-actions .btn-text{color:#fff;justify-content:center}
.cta-actions .btn-text:hover{color:var(--c-accent)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-dark);color:var(--c-on-dark-2);
  padding:64px 0 0;margin-top:96px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;border-top:1px solid rgba(255,255,255,.10);padding-top:48px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;max-width:300px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;
  transition:border-color var(--t),color var(--t),background var(--t);
}
.footer-social a:hover{border-color:var(--c-accent);color:var(--c-accent);background:rgba(15,185,174,.10)}
.footer-col h5{
  font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;
}
.footer-col a,.footer-col p{
  display:block;font-size:14px;line-height:2.2;color:var(--c-on-dark-2);
}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(201,195,210,.86);
}
.footer-bottom .fb-links{display:flex;gap:18px}
.footer-bottom a:hover{color:var(--c-accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero{padding:136px 0 116px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero h1{font-size:36px}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .entry-card--wide{grid-column:1 / -1;flex-direction:column;align-items:flex-start;gap:24px}
  .entry-card--wide .wide-media{width:100%}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:40px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .guarantee-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .guarantee-item:nth-child(3){border-left:0;padding-left:0}
  .review-card{flex:0 0 calc((100% - 24px)/2)}
  .cta-band{padding:40px;flex-direction:column;align-items:flex-start;gap:28px}
  .cta-actions{width:100%;flex-direction:row;align-items:center}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
  .reviews{padding:72px 0}
}
@media (max-width:900px){
  .nav-links{display:none}
  .search-bar{display:none !important}
  .drawer-entry{display:none}
  .burger{display:inline-flex}
  .header-inner{gap:16px}
  .nav-actions{margin-left:auto}
}
@media (max-width:767px){
  .site-header{height:60px}
  .site-header.is-scrolled{height:56px}
  .logo-sub{display:none}
  .mobile-panel{inset:60px 0 0 0}
  .hero{padding:104px 0 88px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .hero-actions .btn-ghost{width:100%}
  .hero::after{height:36px}
  .visual-card img{aspect-ratio:16/11}
  .float-card{right:8px;bottom:-22px;min-width:170px;padding:12px 14px}
  .section{padding:48px 0}
  .reviews{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .section-head h2{font-size:23px}
  .entry-grid{grid-template-columns:1fr}
  .entry-card--wide{padding:24px}
  .entry-card--wide h3{font-size:19px}
  .news-grid{grid-template-columns:1fr}
  .review-card{flex:0 0 100%}
  .guarantee{padding:40px 0}
  .guarantee-grid{grid-template-columns:1fr;gap:24px}
  .guarantee-item{border-left:0;padding:0;border-top:1px solid var(--c-line);padding-top:20px}
  .guarantee-item:first-child{border-top:0;padding-top:0}
  .split h2,.faq-layout h2{font-size:23px}
  .cta-band{padding:32px 24px;border-radius:16px}
  .cta-band h2{font-size:22px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-top:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .site-footer{margin-top:56px}
  .faq-q{padding:18px;font-size:15px}
  .faq-a{padding:0 18px 18px;font-size:14.5px}
}
@media (max-width:480px){
  .container{padding:0 18px}
  .hero h1{font-size:27px}
  .entry-card{padding:22px 20px 18px}
  .float-card{position:static;margin-top:14px;box-shadow:var(--sh-1)}
  .cta-band{padding:28px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --c-primary:#FF5A36;
  --c-primary-dark:#E04624;
  --c-primary-soft:rgba(255,90,54,.10);
  --c-accent:#0FB9AE;
  --c-accent-dark:#0A9489;
  --c-accent-soft:rgba(15,185,174,.10);
  --c-ink:#16121F;
  --c-ink-2:#241C36;
  --c-bg:#FBF9F6;
  --c-bg-alt:#F3EFEA;
  --c-card:#FFFFFF;
  --c-text:#1B1725;
  --c-text-2:#5C5668;
  --c-text-3:#8A8494;
  --c-on-dark:#F5F2EE;
  --c-on-dark-2:#C9C3D2;
  --c-border:#E6E0D8;
  --c-border-dark:rgba(255,255,255,.14);
  --c-success:#1FA97A;
  --c-warning:#E8A33D;
  --c-error:#D8402F;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 2px 10px rgba(22,18,31,.05);
  --sh-2:0 10px 28px rgba(22,18,31,.10);
  --sh-3:0 18px 48px rgba(22,18,31,.16);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.num{font-family:"Inter","SF Pro Display",system-ui,sans-serif;letter-spacing:.02em}

/* ---------- header ---------- */
.site-header{
  position:absolute;
  top:0;left:0;right:0;
  z-index:80;
  background:rgba(22,18,31,.34);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  box-shadow:0 6px 24px rgba(22,18,31,.14);
  transition:background var(--ease),height var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{
  position:fixed;
  background:rgba(22,18,31,.96);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 8px 28px rgba(22,18,31,.22);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:28px;
  transition:height var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:flex;align-items:center;flex:0 0 auto}
.logo-main{
  display:flex;
  flex-direction:column;
  line-height:1.15;
  font-size:19px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--c-on-dark);
}
.logo-main em{
  font-style:normal;
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--c-accent);
  margin-top:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  font-size:15px;
  color:var(--c-on-dark);
  border-radius:var(--r-md);
  transition:color var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:4px;
  width:0;height:2px;
  border-radius:2px;
  background:var(--c-accent);
  transform:translateX(-50%);
  transition:width var(--ease);
}
.nav-link:hover{color:var(--c-accent)}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:var(--c-accent)}
.nav-link.is-active::after{width:60%}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-md);
  color:var(--c-on-dark);
  border:1px solid rgba(255,255,255,.18);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.icon-btn:hover{background:rgba(15,185,174,.16);color:var(--c-accent);border-color:rgba(15,185,174,.5)}
.icon-btn svg{width:18px;height:18px}
.hamburger{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.18);
  color:var(--c-on-dark);
  align-items:center;
  justify-content:center;
}
.hamburger span{
  display:block;
  width:18px;height:2px;
  background:currentColor;
  border-radius:2px;
  position:relative;
}
.hamburger span::before,.hamburger span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:currentColor;
  border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
body.menu-open .hamburger span{background:transparent}
body.menu-open .hamburger span::before{transform:translateY(6px) rotate(45deg)}
body.menu-open .hamburger span::after{transform:translateY(-6px) rotate(-45deg)}

.search-panel{
  display:none;
  padding:0 0 14px;
}
.search-panel.is-open{display:block}
.search-form{
  display:flex;
  gap:10px;
  max-width:420px;
  margin-left:auto;
}
.search-form input{
  flex:1;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);
  color:var(--c-on-dark);
  font-size:14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-form input::placeholder{color:rgba(201,195,210,.75)}
.search-form input:focus{
  outline:none;
  border-color:var(--c-accent);
  box-shadow:0 0 0 3px rgba(15,185,174,.18);
}

.mobile-panel{
  display:none;
  position:fixed;
  inset:0;
  z-index:70;
  padding:96px 24px 32px;
  background:rgba(22,18,31,.96);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  overflow-y:auto;
}
body.menu-open .mobile-panel{display:block}
.mobile-panel .mp-link{
  display:flex;
  align-items:center;
  min-height:52px;
  font-size:16px;
  color:var(--c-on-dark);
  border-bottom:1px solid rgba(255,255,255,.10);
}
.mobile-panel .mp-link.is-active{color:var(--c-accent)}
.mobile-panel .mp-cta{margin-top:28px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 22px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-sm{height:36px;padding:0 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,#FF5A36 0%,#FF7A46 100%);
  color:#fff;
  box-shadow:0 6px 18px rgba(255,90,54,.24);
}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,90,54,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,90,54,.22)}
.btn-outline{
  background:transparent;
  border-color:var(--c-accent);
  color:var(--c-accent);
}
.btn-outline:hover{background:rgba(15,185,174,.1);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-dark-outline{
  background:transparent;
  border-color:rgba(255,255,255,.45);
  color:#fff;
}
.btn-dark-outline:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-primary);
  font-weight:600;
  font-size:15px;
}
.btn-text .arrow{transition:transform var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 10px;
  border-radius:var(--r-sm);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.badge-cyan{background:var(--c-accent-soft);color:var(--c-accent-dark)}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.badge-dark{background:rgba(255,255,255,.12);color:var(--c-on-dark);border:1px solid rgba(255,255,255,.16)}
.dot{
  width:6px;height:6px;
  border-radius:50%;
  background:currentColor;
  flex:0 0 auto;
}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:132px 0 58px;
  color:var(--c-on-dark);
  background-color:var(--c-ink);
  background-image:
    radial-gradient(760px 360px at 82% 4%,rgba(255,90,54,.28) 0%,rgba(36,28,54,0) 68%),
    radial-gradient(620px 320px at 10% 100%,rgba(15,185,174,.20) 0%,rgba(36,28,54,0) 70%),
    linear-gradient(180deg,rgba(22,18,31,.94) 0%,rgba(22,18,31,.86) 55%,rgba(22,18,31,.94) 100%),
    url(/assets/images/backpic/back-2.png);
  background-size:cover,cover,cover,cover;
  background-position:center,center,center,center;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:48px;
  background:var(--c-bg);
  clip-path:polygon(0 100%,100% 42%,100% 100%);
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--c-on-dark-2);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--c-on-dark-2)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#fff;opacity:.92;max-width:20em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero .badge{margin-bottom:16px}
.page-title{
  font-size:38px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:.01em;
  max-width:900px;
  color:#fff;
}
.meta-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
  font-size:13px;
  color:var(--c-on-dark-2);
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
}
.meta-row .sep{opacity:.4}

/* ---------- article layout ---------- */
.article-section{
  padding:56px 0 24px;
  background:var(--c-bg);
}
.article-layout{
  max-width:1020px;
  margin:0 auto;
  display:grid;
  grid-template-columns:minmax(0,1fr) 240px;
  gap:48px;
  align-items:start;
}
.article-body{
  max-width:720px;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  overflow-wrap:break-word;
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;
  font-size:26px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:.01em;
  margin:40px 0 16px;
  padding-left:16px;
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:4px;
  border-radius:2px;
  background:var(--c-primary);
}
.article-body h3{
  font-size:20px;
  font-weight:600;
  line-height:1.4;
  margin:28px 0 12px;
  scroll-margin-top:96px;
}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body a{
  color:var(--c-accent-dark);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--c-accent)}
.article-body strong{font-weight:600}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:2px}
.article-body ul li{
  position:relative;
  padding-left:20px;
  margin-bottom:10px;
  line-height:1.75;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.72em;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--c-accent);
}
.article-body ol{counter-reset:li}
.article-body ol li{
  position:relative;
  padding-left:40px;
  margin-bottom:12px;
  line-height:1.75;
  counter-increment:li;
}
.article-body ol li::before{
  content:counter(li);
  position:absolute;
  left:0;top:.15em;
  width:28px;height:28px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--c-primary-soft);
  color:var(--c-primary-dark);
  font-size:14px;
  font-weight:600;
  font-family:"Inter","SF Pro Display",system-ui,sans-serif;
}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  border-left:4px solid var(--c-accent);
  background:var(--c-bg-alt);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--c-text-2);
  font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;
  border-radius:14px;
  margin:24px 0 10px;
  box-shadow:var(--sh-1);
}
.article-body figure{margin:24px 0}
.article-body figcaption{
  font-size:13px;
  color:var(--c-text-3);
  text-align:center;
  margin-top:8px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  margin:20px 0;
}
.article-body table th,.article-body table td{
  border:1px solid var(--c-border);
  padding:10px 14px;
  text-align:left;
}
.article-body table th{background:var(--c-bg-alt);font-weight:600}
.article-body .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.article-body hr{
  border:0;
  height:1px;
  background:var(--c-border);
  margin:36px 24px;
}

/* ---------- aside ---------- */
.article-aside{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.aside-card{
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-lg);
  padding:20px;
  box-shadow:var(--sh-1);
}
.aside-card h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--c-text-2);
  margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;
  font-size:14px;
  line-height:1.6;
  padding:7px 10px 7px 12px;
  border-left:2px solid transparent;
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--c-text-2);
  transition:color var(--ease),background var(--ease),border-color var(--ease);
}
.toc-list a:hover{color:var(--c-accent-dark);background:var(--c-bg-alt)}
.toc-list a.is-current{
  color:var(--c-primary-dark);
  border-left-color:var(--c-primary);
  background:var(--c-primary-soft);
  font-weight:600;
}
.aside-cta{
  background:var(--c-ink);
  border-radius:var(--r-lg);
  padding:22px 20px;
  color:var(--c-on-dark);
  border:1px solid rgba(255,255,255,.10);
}
.aside-cta p{font-size:13px;line-height:1.7;color:var(--c-on-dark-2);margin:8px 0 16px}
.aside-cta strong{display:block;font-size:16px;font-weight:600;color:#fff}

/* ---------- article nav / related ---------- */
.article-nav{
  max-width:720px;
  margin:44px 0 0;
  padding-top:28px;
  border-top:1px solid var(--c-border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.nav-pair{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  flex:1 1 420px;
  min-width:0;
}
.nav-pair a{
  display:block;
  min-width:0;
  padding:14px 16px;
  border:1px solid var(--c-border);
  border-radius:var(--r-md);
  background:var(--c-card);
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.nav-pair a:hover{border-color:var(--c-accent);box-shadow:var(--sh-2);transform:translateY(-2px)}
.nav-pair .nv-label{
  display:block;
  font-size:12px;
  color:var(--c-text-3);
  letter-spacing:.06em;
  margin-bottom:4px;
}
.nav-pair .nv-title{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--c-text);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.nav-pair .nv-title:hover{color:var(--c-primary)}

.related-section{
  padding:64px 0 88px;
  background:var(--c-bg-alt);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:30px;
}
.section-head h2{
  font-size:26px;
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.35;
}
.section-head p{
  font-size:14px;
  color:var(--c-text-2);
  margin-top:8px;
}
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.content-card{
  display:flex;
  flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.content-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,90,54,.3)}
.cc-media{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--c-bg-alt);
}
.cc-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform var(--ease);
}
.content-card:hover .cc-media img{transform:scale(1.03)}
.cc-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.cc-title{
  font-size:17px;
  font-weight:600;
  line-height:1.45;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color var(--ease);
}
.content-card:hover .cc-title{color:var(--c-primary)}
.cc-desc{
  font-size:14px;
  color:var(--c-text-2);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.cc-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--c-border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--c-text-3);
}
.cc-foot .btn-text{font-size:13px}

/* ---------- empty state ---------- */
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:16px;
  padding:64px 24px;
  background:var(--c-card);
  border:1px dashed var(--c-border);
  border-radius:var(--r-lg);
}
.empty-state svg{width:96px;height:96px;color:var(--c-text-3);opacity:.7}
.empty-state p{font-size:15px;color:var(--c-text-2)}
.empty-state .btn{margin-top:4px}

/* ---------- cta ---------- */
.cta-section{padding:0 0 88px;background:var(--c-bg-alt)}
.cta-band{
  position:relative;
  border-radius:var(--r-xl);
  background:var(--c-ink);
  background-image:radial-gradient(560px 280px at 88% 12%,rgba(255,90,54,.30) 0%,rgba(36,28,54,0) 70%);
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  color:var(--c-on-dark);
  overflow:hidden;
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35}
.cta-band p{font-size:14px;color:var(--c-on-dark-2);margin-top:10px;max-width:520px}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{
  background:var(--c-ink);
  color:var(--c-on-dark-2);
  padding:60px 0 0;
  border-top:1px solid rgba(255,255,255,.10);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:320px}
.footer-social{margin-top:18px;display:flex;gap:10px;flex-wrap:wrap}
.footer-social a{
  font-size:13px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  color:var(--c-on-dark);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.footer-social a:hover{color:var(--c-accent);border-color:rgba(15,185,174,.55);background:rgba(15,185,174,.1)}
.footer-col h5{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col a,.footer-col p{
  display:block;
  font-size:14px;
  line-height:2.2;
  color:var(--c-on-dark-2);
  transition:color var(--ease);
}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(201,195,210,.8);
}
.fb-links{display:flex;gap:22px}
.fb-links a:hover{color:var(--c-accent)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;max-width:760px}
  .article-aside{display:none}
  .article-body{max-width:100%}
  .nav-links{display:none}
  .hamburger{display:inline-flex}
  .header-actions{gap:8px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-title{font-size:32px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .header-inner{height:60px;gap:14px}
  .site-header.is-scrolled .header-inner{height:60px}
  .logo-main{font-size:17px}
  .logo-main em{display:none}
  .icon-btn{display:none}
  .header-actions .btn-sm{height:34px;padding:0 15px;font-size:13px}
  .page-hero{padding:104px 0 44px}
  .page-title{font-size:26px}
  .breadcrumb{font-size:12px}
  .article-section{padding:40px 0 16px}
  .article-body{font-size:16px}
  .article-body h2{font-size:22px;margin:32px 0 14px}
  .article-body h3{font-size:18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head h2{font-size:22px}
  .grid-3{grid-template-columns:1fr}
  .related-section{padding:48px 0 64px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-band h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .nav-pair{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:480px){
  .page-title{font-size:23px}
  .meta-row{font-size:12px;gap:8px}
  .article-body h2{font-size:20px}
  .article-body ol li{padding-left:36px}
}

/* roulang page: category1 */
:root{
  --c-primary:#FF5A36;
  --c-primary-dark:#E04624;
  --c-primary-soft:rgba(255,90,54,.10);
  --c-accent:#0FB9AE;
  --c-accent-dark:#0A9489;
  --c-accent-soft:rgba(15,185,174,.10);
  --c-ink:#1B1725;
  --c-ink-2:#5C5668;
  --c-ink-3:#8A8494;
  --c-dark:#16121F;
  --c-dark-2:#241C36;
  --c-bg:#FBF9F6;
  --c-bg-alt:#F3EFEA;
  --c-white:#FFFFFF;
  --c-line:#E6E0D8;
  --c-line-dark:rgba(255,255,255,.14);
  --c-on-dark:#F5F2EE;
  --c-on-dark-2:#C9C3D2;
  --c-ok:#1FA97A;
  --c-warn:#E8A33D;
  --c-err:#D8402F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-tag:6px;
  --r-input:10px;
  --sh-1:0 2px 10px rgba(22,18,31,.05);
  --sh-2:0 10px 28px rgba(22,18,31,.10);
  --sh-3:0 18px 48px rgba(22,18,31,.16);
  --ease:.22s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4,h5{margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:linear-gradient(135deg,#FF5A36 0%,#FF7A46 100%);color:#fff;box-shadow:0 6px 18px rgba(255,90,54,.28)}
.btn-primary:hover{background:linear-gradient(135deg,#E04624 0%,#FF5A36 100%);transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,90,54,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--c-accent);color:var(--c-accent);background:transparent}
.btn-ghost:hover{background:var(--c-accent-soft)}
.btn-ghost-light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-ghost-light:hover{background:rgba(255,255,255,.10)}
.btn-lg{height:52px;padding:0 34px;font-size:16px}
.btn-block{display:flex;width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.text-link .arw{transition:transform var(--ease)}
.text-link:hover .arw{transform:translateX(4px)}

/* 导航 */
.site-header{
  position:absolute;top:0;left:0;right:0;z-index:120;height:72px;
  background:rgba(22,18,31,.34);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  box-shadow:0 6px 24px rgba(22,18,31,.14);
  transition:height .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-stuck{position:fixed;height:64px;background:rgba(22,18,31,.96);border-bottom-color:rgba(255,255,255,.08)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:100%}
.logo{display:inline-flex;align-items:center;flex:0 0 auto}
.logo-main{display:inline-flex;align-items:baseline;gap:6px;font-size:19px;font-weight:700;color:var(--c-on-dark);letter-spacing:.02em;white-space:nowrap;line-height:1.2}
.logo-main em{font-style:normal;font-size:12px;font-weight:500;color:var(--c-accent);letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 11px;
  font-size:14.5px;color:var(--c-on-dark);border-radius:8px;transition:color var(--ease),background var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:1px;width:0;height:2px;border-radius:2px;
  background:var(--c-accent);transform:translateX(-50%);transition:width var(--ease);
}
.nav-link:hover{color:var(--c-accent)}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:var(--c-accent)}
.nav-link.is-active::after{width:60%}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.08);color:var(--c-on-dark);
  transition:background var(--ease),border-color var(--ease),color var(--ease);
}
.icon-btn:hover{background:rgba(15,185,174,.18);border-color:var(--c-accent);color:var(--c-accent)}
.nav-search{width:0;overflow:hidden;opacity:0;transition:width .25s var(--ease),opacity .25s var(--ease)}
.nav-search.is-open{width:250px;opacity:1}
.nav-search input{
  width:100%;height:40px;padding:0 14px;border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.10);
  color:var(--c-on-dark);font-size:14px;outline:none;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.nav-search input::placeholder{color:var(--c-on-dark-2)}
.nav-search input:focus{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(15,185,174,.20);background:rgba(255,255,255,.16)}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);place-items:center;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);flex-direction:column;gap:4px;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-on-dark);transition:transform var(--ease),opacity var(--ease)}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{
  display:none;position:fixed;inset:0;z-index:110;flex-direction:column;gap:0;
  background:rgba(22,18,31,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:88px 24px 32px;overflow-y:auto;
}
.mobile-panel.is-open{display:flex}
.m-search{margin-bottom:18px}
.m-search input{
  width:100%;height:44px;padding:0 16px;border-radius:var(--r-input);font-size:15px;outline:none;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.10);color:var(--c-on-dark);
}
.m-search input::placeholder{color:var(--c-on-dark-2)}
.m-search input:focus{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(15,185,174,.20)}
.m-link{
  display:flex;align-items:center;height:52px;font-size:16px;color:var(--c-on-dark);
  border-bottom:1px solid rgba(255,255,255,.10);transition:color var(--ease);
}
.m-link.is-active{color:var(--c-accent)}
.m-cta{margin-top:26px;height:52px}

/* 分类页首屏 */
.page-hero{
  position:relative;overflow:hidden;color:var(--c-on-dark);
  padding:150px 0 96px;
  background:
    radial-gradient(120% 90% at 86% -10%,rgba(255,90,54,.26) 0%,rgba(36,28,54,.9) 46%,rgba(22,18,31,1) 100%),
    var(--c-dark);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  opacity:.16;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:48px;
  background:var(--c-bg);clip-path:polygon(0 100%,100% 0,100% 100%);
}
.page-hero .container{position:relative;z-index:3}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-on-dark-2);margin-bottom:26px}
.breadcrumb a{color:var(--c-on-dark-2);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{opacity:.5}
.breadcrumb [aria-current]{color:var(--c-on-dark)}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-tag);
  font-size:12px;letter-spacing:.06em;color:var(--c-accent);
  border:1px solid rgba(15,185,174,.5);background:rgba(15,185,174,.10);
}
.page-hero h1{
  font-size:42px;line-height:1.25;color:#fff;max-width:820px;margin:20px 0 18px;letter-spacing:.01em;
}
.page-hero h1 .hl{
  display:inline-block;position:relative;color:#fff;
  background-image:linear-gradient(transparent 66%,rgba(255,90,54,.55) 66%);
  background-repeat:no-repeat;
}
.hero-lead{max-width:700px;font-size:17px;line-height:1.85;color:var(--c-on-dark-2);margin:0}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 26px;margin-top:30px;font-size:13px;color:var(--c-on-dark-2)}
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--r-tag);font-size:12px;font-weight:500;letter-spacing:.02em}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.badge-ok{color:var(--c-ok);background:rgba(31,169,122,.14)}
.badge-warn{color:var(--c-warn);background:rgba(232,163,61,.16)}
.badge-info{color:var(--c-accent);background:rgba(15,185,174,.14)}
.badge-soft{color:var(--c-accent-dark);background:var(--c-accent-soft)}

/* 主体栅格 */
.main-wrap{padding:64px 0 96px}
.layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start}
.section-head{margin-bottom:28px}
.section-head h2{font-size:30px;line-height:1.3}
.section-head p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--c-ink-2);max-width:640px}

/* 步骤时间轴 */
.timeline{position:relative;display:flex;flex-direction:column;gap:20px;padding-left:34px}
.timeline::before{
  content:"";position:absolute;left:16px;top:26px;bottom:26px;width:0;
  border-left:1px dashed rgba(255,90,54,.32);
}
.step{
  position:relative;background:var(--c-white);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.step:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:rgba(15,185,174,.42)}
.step-num{
  position:absolute;left:-34px;top:22px;width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:700;letter-spacing:.02em;border:1px solid rgba(255,90,54,.30);
}
.step h3{font-size:21px;margin-bottom:8px}
.step p{font-size:15.5px;line-height:1.8;color:var(--c-ink-2);margin:0}
.step-figure{margin-top:16px;border-radius:var(--r-img);overflow:hidden;background:var(--c-bg-alt);aspect-ratio:16/9}
.step-figure img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.step:hover .step-figure img{transform:scale(1.03)}
.step-tip{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:13px;color:var(--c-accent-dark);background:var(--c-accent-soft);
  padding:5px 11px;border-radius:var(--r-tag);
}

/* 提示框 */
.notice{
  display:flex;gap:16px;margin-top:32px;padding:22px 24px;
  background:rgba(15,185,174,.06);border:1px solid rgba(15,185,174,.28);
  border-left:4px solid var(--c-accent);border-radius:12px;
}
.notice.warn{background:rgba(232,163,61,.08);border-color:rgba(232,163,61,.30);border-left-color:var(--c-warn)}
.notice-icon{
  flex:0 0 auto;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:rgba(15,185,174,.16);color:var(--c-accent-dark);font-weight:700;font-size:16px;
}
.notice.warn .notice-icon{background:rgba(232,163,61,.18);color:#B97C12}
.notice-body h4{font-size:16px;margin-bottom:6px}
.notice-body p{font-size:14.5px;line-height:1.8;color:var(--c-ink-2);margin:0}

/* 图文核对板块 */
.check-block{
  margin-top:40px;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:32px;align-items:center;
  background:var(--c-bg-alt);border-radius:var(--r-card);padding:28px;
}
.check-block figure{margin:0;border-radius:var(--r-img);overflow:hidden;aspect-ratio:4/3;background:#e8e2da}
.check-block figure img{width:100%;height:100%;object-fit:cover}
.check-block h3{font-size:21px;margin-bottom:16px}
.check-list li{
  position:relative;padding-left:22px;margin-bottom:12px;font-size:15px;line-height:1.8;color:var(--c-ink-2);
}
.check-list li:last-child{margin-bottom:0}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--c-accent);
}
.check-list strong{color:var(--c-ink);font-weight:600}

/* 侧栏 */
.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:24px}
.side-card{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.side-card h4{font-size:16px;margin-bottom:6px}
.side-card .side-sub{font-size:13px;color:var(--c-ink-3);margin:0 0 14px}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;font-size:14.5px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);transition:color var(--ease),padding-left var(--ease);
}
.side-nav a:last-child{border-bottom:0}
.side-nav a:hover{color:var(--c-accent);padding-left:4px}
.side-nav a.is-current{color:var(--c-primary);font-weight:600}
.side-nav a .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.45}
.side-nav a.is-current .dot{opacity:1}
.side-cta{
  background:var(--c-dark);border:1px solid var(--c-line-dark);border-radius:var(--r-card);
  padding:26px;color:var(--c-on-dark);position:relative;overflow:hidden;
}
.side-cta::before{
  content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,54,.30) 0%,rgba(255,90,54,0) 70%);
}
.side-cta h4{position:relative;color:#fff;font-size:17px;margin-bottom:10px}
.side-cta p{position:relative;font-size:13.5px;line-height:1.8;color:var(--c-on-dark-2);margin-bottom:18px}
.side-cta .btn{position:relative}
.side-meta{display:flex;flex-direction:column;gap:10px;margin-top:18px;position:relative}
.side-meta span{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--c-on-dark-2)}
.side-meta span i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;flex:0 0 auto}

/* 底部 CTA */
.cta-wrap{padding-bottom:96px}
.cta-band{
  position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:36px;
  background:var(--c-dark);color:var(--c-on-dark);border-radius:20px;padding:48px;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,54,.30) 0%,rgba(255,90,54,0) 70%);
}
.cta-text{position:relative;z-index:2;max-width:640px}
.cta-text h2{font-size:30px;color:#fff;line-height:1.3;margin-bottom:12px}
.cta-text p{font-size:15px;line-height:1.85;color:var(--c-on-dark-2);margin:0}
.cta-actions{position:relative;z-index:2;display:flex;align-items:center;gap:18px;flex:0 0 auto}

/* 页脚 */
.site-footer{background:var(--c-dark);color:var(--c-on-dark-2);padding:72px 0 0;border-top:1px solid rgba(255,255,255,.10)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo-main{font-size:18px}
.footer-brand p{font-size:14px;line-height:1.9;margin:16px 0 20px;max-width:320px}
.footer-social{display:flex;gap:10px;flex-wrap:wrap}
.footer-social a{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-tag);
  font-size:13px;color:var(--c-on-dark-2);border:1px solid rgba(255,255,255,.16);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.footer-social a:hover{color:var(--c-accent);border-color:var(--c-accent);background:rgba(15,185,174,.10)}
.footer-col h5{font-size:15px;font-weight:600;color:var(--c-on-dark);margin:0 0 16px}
.footer-col a{display:block;font-size:14px;line-height:2.2;color:var(--c-on-dark-2);transition:color var(--ease)}
.footer-col a:hover{color:var(--c-accent)}
.footer-col p{font-size:14px;line-height:2.0;margin:0;color:var(--c-on-dark-2)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;color:var(--c-on-dark-2);
}
.fb-links{display:flex;gap:18px}
.fb-links a{transition:color var(--ease)}
.fb-links a:hover{color:var(--c-accent)}

/* 进场动效 */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}

/* 断点 */
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-search{display:none}
  .icon-btn{display:none}
  .burger{display:grid}
  .layout{grid-template-columns:1fr;gap:40px}
  .sidebar{position:static}
  .page-hero{padding:132px 0 84px}
  .page-hero h1{font-size:36px}
  .main-wrap{padding:56px 0 76px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .page-hero{padding:118px 0 76px}
  .page-hero h1{font-size:30px;margin:16px 0 14px}
  .hero-lead{font-size:15.5px}
  .hero-meta{gap:10px 18px;margin-top:22px}
  .main-wrap{padding:48px 0 64px}
  .section-head h2{font-size:23px}
  .step{padding:18px 18px}
  .step h3{font-size:18px}
  .step p{font-size:15px}
  .timeline{padding-left:28px}
  .timeline::before{left:13px}
  .step-num{left:-28px;width:28px;height:28px;font-size:12px;top:19px}
  .check-block{grid-template-columns:1fr;gap:22px;padding:22px}
  .notice{flex-direction:column;gap:12px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:24px}
  .cta-text h2{font-size:23px}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;gap:14px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-wrap{padding-bottom:64px}
}
@media (max-width:480px){
  .logo-main{font-size:17px}
  .logo-main em{font-size:11px}
  .page-hero h1{font-size:26px}
  .btn-lg{height:48px;padding:0 22px;font-size:15px}
  .side-card,.side-cta{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  [data-reveal]{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --c-primary:#FF5A36;
  --c-primary-deep:#E04624;
  --c-primary-soft:rgba(255,90,54,.10);
  --c-accent:#0FB9AE;
  --c-accent-deep:#0A9489;
  --c-accent-soft:rgba(15,185,174,.12);
  --c-ink:#16121F;
  --c-ink-2:#241C36;
  --c-bg:#FBF9F6;
  --c-bg-alt:#F3EFEA;
  --c-card:#FFFFFF;
  --c-text:#1B1725;
  --c-text-2:#5C5668;
  --c-text-3:#8A8494;
  --c-line:#E6E0D8;
  --c-line-dark:rgba(255,255,255,.14);
  --c-on-dark:#F5F2EE;
  --c-on-dark-2:#C9C3D2;
  --c-success:#1FA97A;
  --c-warning:#E8A33D;
  --c-error:#D8402F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-tag:6px;
  --r-input:10px;
  --sh-1:0 2px 10px rgba(22,18,31,.05);
  --sh-2:0 10px 28px rgba(22,18,31,.10);
  --sh-3:0 18px 48px rgba(22,18,31,.16);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --max-w:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-accent-deep)}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
h1,h2,h3,h4{font-weight:700;letter-spacing:.01em;line-height:1.32}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background-image:linear-gradient(135deg,#FF5A36,#FF7A46);
  color:#fff;
  box-shadow:0 2px 10px rgba(255,90,54,.20);
}
.btn-primary:hover{
  background-image:linear-gradient(135deg,#E04624,#F2673A);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 10px 28px rgba(224,70,36,.24);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 10px rgba(255,90,54,.20)}
.btn-ghost{
  background:transparent;
  color:var(--c-accent-deep);
  border-color:var(--c-accent);
}
.btn-ghost:hover{
  background:var(--c-accent-soft);
  color:var(--c-accent-deep);
  transform:translateY(-1px);
}
.btn-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.55);
}
.btn-light:hover{
  background:rgba(255,255,255,.10);
  color:#fff;
}
.btn-lg{height:52px;padding:0 32px;font-size:16px;border-radius:999px}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
}
.btn-link span{transition:transform var(--ease)}
.btn-link:hover{color:var(--c-primary-deep)}
.btn-link:hover span{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.site-header{
  position:absolute;
  top:0;left:0;right:0;
  z-index:90;
  background:rgba(22,18,31,.34);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  box-shadow:0 6px 24px rgba(22,18,31,.14);
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-stuck{
  position:fixed;
  background:rgba(22,18,31,.96);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 6px 24px rgba(22,18,31,.24);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:72px;
  transition:height .25s cubic-bezier(.4,0,.2,1);
}
.site-header.is-stuck .nav-inner{height:64px}
.logo{
  display:flex;
  align-items:center;
  gap:2px;
  flex-shrink:0;
  color:var(--c-on-dark);
}
.logo-main{
  font-size:19px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--c-on-dark);
  white-space:nowrap;
}
.logo-main em{
  font-style:normal;
  font-size:12px;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--c-accent);
  margin-left:6px;
  vertical-align:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0 auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  color:var(--c-on-dark);
  border-radius:8px;
  transition:color var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:60%;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
  transform:translateX(-50%) scaleX(0);
  transform-origin:center;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--c-accent)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.is-active{color:var(--c-accent)}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.20);
  background:rgba(255,255,255,.06);
  color:var(--c-on-dark);
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.icon-btn:hover{background:rgba(15,185,174,.16);color:var(--c-accent);border-color:rgba(15,185,174,.5)}
.icon-btn svg{width:19px;height:19px}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.20);
  background:rgba(255,255,255,.06);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  padding:0;
}
.burger span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--c-on-dark);
  transition:transform var(--ease),opacity var(--ease);
}
.search-bar{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s cubic-bezier(.4,0,.2,1);
  border-top:1px solid transparent;
}
.search-bar.is-open{max-height:76px;border-top-color:rgba(255,255,255,.10)}
.search-inner{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 0;
}
.search-inner input{
  width:100%;
  max-width:360px;
  height:44px;
  padding:0 16px;
  border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.20);
  background:rgba(255,255,255,.08);
  color:var(--c-on-dark);
  font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.search-inner input::placeholder{color:rgba(201,195,210,.75)}
.search-inner input:focus{
  outline:none;
  border-color:var(--c-accent);
  background:rgba(255,255,255,.12);
  box-shadow:0 0 0 3px rgba(15,185,174,.18);
}
.mobile-panel{
  display:none;
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  z-index:95;
  padding:88px 24px 32px;
  flex-direction:column;
  gap:6px;
  background:rgba(22,18,31,.96);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
}
.mobile-panel.is-open{display:flex}
.mobile-links{display:flex;flex-direction:column}
.mobile-links a{
  display:flex;
  align-items:center;
  min-height:52px;
  font-size:16px;
  color:var(--c-on-dark);
  border-bottom:1px solid rgba(255,255,255,.10);
}
.mobile-links a:hover{color:var(--c-accent)}
.mobile-panel .btn{margin-top:auto;width:100%}

/* ---------- 页面头部 ---------- */
.page-head{
  position:relative;
  overflow:hidden;
  padding:152px 0 84px;
  color:var(--c-on-dark);
  background-color:var(--c-ink);
  background-image:radial-gradient(120% 100% at 84% 0%, rgba(36,28,54,.9) 0%, rgba(22,18,31,0) 62%);
}
.page-head::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
  pointer-events:none;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-on-dark-2);
  margin-bottom:26px;
}
.crumbs a{color:var(--c-on-dark-2)}
.crumbs a:hover{color:var(--c-accent)}
.crumbs .sep{opacity:.6}
.crumbs .cur{color:var(--c-on-dark)}
.page-head h1{
  font-size:44px;
  line-height:1.28;
  color:#fff;
  margin-bottom:20px;
  max-width:900px;
}
.page-lead{
  font-size:17px;
  line-height:1.8;
  color:var(--c-on-dark-2);
  max-width:720px;
  margin-bottom:28px;
}
.head-meta{display:flex;flex-wrap:wrap;gap:10px}
.pill{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  font-size:12px;
  letter-spacing:.03em;
  border-radius:999px;
  border:1px solid rgba(15,185,174,.55);
  color:var(--c-accent);
  background:rgba(15,185,174,.08);
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section--alt{background:var(--c-bg-alt)}
.section--dark{
  background-color:var(--c-ink);
  background-image:radial-gradient(110% 90% at 12% 0%, rgba(36,28,54,.9) 0%, rgba(22,18,31,0) 60%);
  color:var(--c-on-dark);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:32px;
}
.section-head > div{max-width:760px}
.section-head h2{
  font-size:30px;
  line-height:1.32;
  margin-bottom:12px;
  position:relative;
  padding-bottom:14px;
}
.section-head h2::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:44px;height:3px;
  border-radius:2px;
  background:var(--c-primary);
}
.section--dark .section-head h2{color:#fff}
.section-head p{font-size:15px;line-height:1.8;color:var(--c-text-2);max-width:720px}
.section--dark .section-head p{color:var(--c-on-dark-2)}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.10em;
  color:var(--c-accent-deep);
  margin-bottom:12px;
}
.section--dark .eyebrow{color:var(--c-accent)}

/* ---------- 双栏对照 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.split-body h2{
  font-size:30px;
  line-height:1.32;
  margin-bottom:18px;
}
.split-body p{
  font-size:16px;
  line-height:1.85;
  color:var(--c-text-2);
  margin-bottom:14px;
  max-width:640px;
}
.check-list{
  display:grid;
  gap:12px;
  margin:26px 0 34px;
}
.check-list li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  line-height:1.75;
  color:var(--c-text-2);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--c-accent);
}
.split-media{
  position:relative;
  border-radius:18px;
  overflow:hidden;
  box-shadow:var(--sh-2);
  background:var(--c-bg-alt);
}
.split-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .3s cubic-bezier(.4,0,.2,1);
}
.split-media:hover img{transform:scale(1.03)}
.split-tag{
  position:absolute;
  left:18px;
  bottom:18px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:34px;
  padding:0 14px;
  border-radius:10px;
  font-size:13px;
  font-weight:600;
  color:var(--c-text);
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-2);
}
.split-tag i{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--c-success);
  display:inline-block;
}

/* ---------- 清单卡网格 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.check-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 24px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.check-card:hover{
  border-color:var(--c-accent);
  transform:translateY(-3px);
  box-shadow:var(--sh-2);
}
.check-ico{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:48px;height:48px;
  border-radius:12px;
  background:var(--c-accent-soft);
  color:var(--c-accent-deep);
  margin-bottom:18px;
}
.check-ico svg{width:22px;height:22px}
.check-card h3{
  font-size:18px;
  line-height:1.4;
  margin-bottom:10px;
  font-weight:600;
}
.check-card p{
  font-size:14px;
  line-height:1.8;
  color:var(--c-text-2);
}

/* ---------- 步骤 ---------- */
.dark-grid{
  display:grid;
  grid-template-columns:1.35fr .85fr;
  gap:56px;
  align-items:start;
}
.steps{position:relative}
.step{
  position:relative;
  display:grid;
  grid-template-columns:36px 1fr;
  gap:20px;
  padding-bottom:30px;
}
.step:last-child{padding-bottom:0}
.step:not(:last-child)::before{
  content:"";
  position:absolute;
  left:17px;
  top:44px;
  bottom:6px;
  border-left:1px dashed rgba(255,255,255,.20);
}
.step-num{
  width:36px;height:36px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:700;
  color:var(--c-primary);
  background:rgba(255,90,54,.16);
  border:1px solid rgba(255,90,54,.35);
}
.step-body h3{
  font-size:18px;
  line-height:1.5;
  color:#fff;
  margin-bottom:8px;
  font-weight:600;
}
.step-body p{
  font-size:15px;
  line-height:1.8;
  color:var(--c-on-dark-2);
  max-width:560px;
}
.side-card{
  background:rgba(255,255,255,.05);
  border:1px solid var(--c-line-dark);
  border-radius:var(--r-card);
  padding:28px 26px;
}
.side-card h3{
  font-size:18px;
  color:#fff;
  margin-bottom:16px;
  font-weight:600;
}
.side-list{display:grid;gap:14px;margin-bottom:26px}
.side-list li{
  display:grid;
  grid-template-columns:20px 1fr;
  gap:10px;
  font-size:14px;
  line-height:1.75;
  color:var(--c-on-dark-2);
}
.side-list li span:first-child{
  display:flex;
  align-items:center;
  justify-content:center;
  width:20px;height:20px;
  border-radius:50%;
  background:rgba(15,185,174,.18);
  color:var(--c-accent);
  font-size:12px;
  font-weight:700;
  margin-top:3px;
}
.side-card .btn{width:100%}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq-item{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:#D9D2C8}
.faq-item.is-open{
  border-color:rgba(255,90,54,.45);
  box-shadow:var(--sh-1);
}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  padding:20px 24px;
  background:none;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  color:var(--c-text);
  cursor:pointer;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-item.is-open .faq-q{color:var(--c-primary)}
.faq-ic{
  position:relative;
  flex-shrink:0;
  width:22px;height:22px;
  border-radius:50%;
  border:1px solid var(--c-line);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.faq-ic::before,
.faq-ic::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--c-text-2);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:background var(--ease),opacity var(--ease);
}
.faq-ic::before{width:10px;height:1.6px}
.faq-ic::after{width:1.6px;height:10px}
.faq-item.is-open .faq-ic{
  transform:rotate(180deg);
  border-color:var(--c-primary);
  background:var(--c-primary-soft);
}
.faq-item.is-open .faq-ic::before,
.faq-item.is-open .faq-ic::after{background:var(--c-primary)}
.faq-item.is-open .faq-ic::after{opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s cubic-bezier(.4,0,.2,1);
}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-2);
}

/* ---------- 底部 CTA ---------- */
.cta-wrap{padding:0 0 96px}
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  padding:52px 56px;
  border-radius:20px;
  background-color:var(--c-ink);
  background-image:radial-gradient(100% 130% at 88% 10%, rgba(36,28,54,.9) 0%, rgba(22,18,31,0) 62%);
  color:var(--c-on-dark);
}
.cta-band h2{
  font-size:28px;
  line-height:1.34;
  color:#fff;
  margin-bottom:10px;
}
.cta-band p{
  font-size:15px;
  line-height:1.8;
  color:var(--c-on-dark-2);
  max-width:520px;
}
.cta-actions{display:flex;align-items:center;gap:18px;flex-shrink:0}
.cta-actions .btn-link{color:var(--c-accent)}
.cta-actions .btn-link:hover{color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:var(--c-on-dark-2);
  padding-top:72px;
  border-top:1px solid rgba(255,255,255,.10);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.3fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-main{color:var(--c-on-dark)}
.footer-brand p{
  font-size:14px;
  line-height:1.9;
  color:var(--c-on-dark-2);
  max-width:340px;
}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  font-size:13px;
  color:var(--c-on-dark-2);
}
.footer-social a:hover{
  color:var(--c-accent);
  border-color:rgba(15,185,174,.55);
}
.footer-col h5{
  font-size:15px;
  font-weight:600;
  color:var(--c-on-dark);
  margin-bottom:14px;
}
.footer-col a{
  display:block;
  font-size:14px;
  line-height:2.2;
  color:var(--c-on-dark-2);
}
.footer-col a:hover{color:var(--c-accent)}
.footer-col p{
  font-size:14px;
  line-height:2.2;
  color:var(--c-on-dark-2);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;
  color:var(--c-on-dark-2);
  flex-wrap:wrap;
}
.fb-links{display:flex;gap:20px}
.fb-links a{color:var(--c-on-dark-2)}
.fb-links a:hover{color:var(--c-accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-inner{gap:16px}
  .nav-link{padding:10px 8px;font-size:14px}
  .split{gap:40px}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .dark-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  .page-head h1{font-size:36px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-actions .icon-btn{display:none}
  .burger{display:flex}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .container{padding:0 20px}
  .page-head{padding:124px 0 56px}
  .page-head h1{font-size:30px;line-height:1.32}
  .page-lead{font-size:16px}
  .nav-inner{height:60px;gap:12px}
  .logo-main{font-size:17px}
  .logo-main em{font-size:11px;margin-left:5px}
  .nav-actions .btn{display:none}
  .split{grid-template-columns:1fr;gap:32px}
  .split-body h2{font-size:23px}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px}
  .section-head h2{font-size:23px}
  .check-grid{grid-template-columns:1fr}
  .check-card{padding:24px 20px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 24px;gap:24px}
  .cta-band h2{font-size:22px}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%;gap:14px}
  .cta-actions .btn{width:100%}
  .cta-actions .btn-link{justify-content:center}
  .cta-wrap{padding-bottom:48px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  .site-footer{padding-top:48px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a p{padding:0 18px 18px 18px}
  .step{grid-template-columns:32px 1fr;gap:16px}
  .step-num{width:32px;height:32px;font-size:13px}
  .step:not(:last-child)::before{left:15px;top:40px}
  .btn-lg{height:48px;padding:0 26px;font-size:15px}
}
@media (max-width:480px){
  .page-head h1{font-size:26px}
  .section-head h2,.split-body h2{font-size:21px}
  .cta-band h2{font-size:20px}
  .logo-main{font-size:16px}
  .logo-main em{display:none}
  .head-meta .pill{font-size:11px;padding:0 11px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --c-primary:#FF5A36;
  --c-primary-dark:#E04624;
  --c-primary-soft:rgba(255,90,54,.10);
  --c-accent:#0FB9AE;
  --c-accent-dark:#0A9489;
  --c-accent-soft:rgba(15,185,174,.12);
  --c-ink:#16121F;
  --c-ink-2:#241C36;
  --c-bg:#FBF9F6;
  --c-bg-alt:#F3EFEA;
  --c-card:#FFFFFF;
  --c-text:#1B1725;
  --c-text-2:#5C5668;
  --c-text-3:#8A8494;
  --c-text-inv:#F5F2EE;
  --c-text-inv-2:#C9C3D2;
  --c-line:#E6E0D8;
  --c-line-inv:rgba(255,255,255,.14);
  --c-ok:#1FA97A;
  --c-warn:#E8A33D;
  --c-err:#D8402F;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-badge:6px;
  --r-input:10px;
  --sh-1:0 2px 10px rgba(22,18,31,.05);
  --sh-2:0 10px 28px rgba(22,18,31,.10);
  --sh-3:0 18px 48px rgba(22,18,31,.16);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","SF Pro Display","PingFang SC",system-ui,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:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--alt{background:var(--c-bg-alt)}
.section--tight{padding-top:0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.32;font-weight:700;letter-spacing:.01em}
.section-head p{margin-top:12px;color:var(--c-text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:600;
  color:var(--c-accent-dark);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-primary);display:block}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#FF5A36,#FF7A46);
  color:#fff;
  box-shadow:0 6px 18px rgba(255,90,54,.22);
}
.btn-primary:hover{background:linear-gradient(135deg,#E04624,#FF6A3A);transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,90,54,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:.4;cursor:not-allowed;transform:none}
.btn-ghost{background:transparent;border-color:var(--c-accent);color:var(--c-accent-dark)}
.btn-ghost:hover{background:rgba(15,185,174,.08)}
.btn-ghost-inv{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost-inv:hover{background:rgba(255,255,255,.12)}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:15px;
  transition:color var(--ease);
}
.btn-text svg{transition:transform var(--ease)}
.btn-text:hover{color:var(--c-primary-dark)}
.btn-text:hover svg{transform:translateX(4px)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(22,18,31,.34);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  box-shadow:0 6px 24px rgba(22,18,31,.14);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(22,18,31,.96);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 8px 26px rgba(22,18,31,.24);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .25s ease}
.is-scrolled .nav-inner{height:64px}
.logo{display:flex;align-items:center;flex:0 0 auto}
.logo-main{
  font-family:var(--font-num);
  font-size:20px;font-weight:700;letter-spacing:.01em;
  color:var(--c-text-inv);white-space:nowrap;
}
.logo-main em{
  font-style:normal;font-size:12px;font-weight:500;
  color:var(--c-text-inv-2);letter-spacing:.06em;
  margin-left:8px;padding-left:8px;
  border-left:1px solid rgba(255,255,255,.22);
  vertical-align:middle;
}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 12px;
  font-size:15px;color:var(--c-text-inv);
  transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:0;height:2px;background:var(--c-accent);
  transform:translateX(-50%);
  transition:width var(--ease);
}
.nav-link:hover{color:var(--c-accent)}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:var(--c-accent)}
.nav-link.is-active::after{width:60%}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;color:var(--c-text-inv);
  border:1px solid rgba(255,255,255,.18);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.12);color:var(--c-accent);border-color:rgba(15,185,174,.5)}
.hamburger{
  display:none;width:44px;height:44px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border-radius:10px;border:1px solid rgba(255,255,255,.18);
}
.hamburger span{display:block;width:20px;height:2px;background:var(--c-text-inv);transition:transform var(--ease),opacity var(--ease)}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-search{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .25s ease,opacity .25s ease;
}
.nav-search.is-open{max-height:96px;opacity:1}
.nav-search .container{padding-bottom:16px}
.search-form{display:flex;gap:10px}
.search-form input{
  flex:1;height:44px;padding:0 14px;
  border-radius:var(--r-input);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  color:var(--c-text-inv);font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.search-form input::placeholder{color:rgba(201,195,210,.75)}
.search-form input:focus{
  outline:none;border-color:var(--c-accent);
  box-shadow:0 0 0 2px rgba(15,185,174,.28);
  background:rgba(255,255,255,.14);
}
.search-form .btn{height:44px}
.mobile-panel{
  position:fixed;top:60px;left:0;right:0;bottom:0;z-index:55;
  background:rgba(22,18,31,.96);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:20px 24px 32px;display:none;overflow-y:auto;
}
.mobile-panel.is-open{display:block}
.mobile-panel .search-form{margin-bottom:18px}
.mobile-links{display:flex;flex-direction:column;border-top:1px solid rgba(255,255,255,.10)}
.mobile-links a{
  display:flex;align-items:center;height:52px;
  color:var(--c-text-inv);font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.mobile-links a.is-active{color:var(--c-accent)}
.mobile-panel .btn-block{margin-top:22px}

/* ============ 页面首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 82% 12%,rgba(255,90,54,.30),transparent 58%),
    linear-gradient(135deg,#16121F 0%,#241C36 82%);
  color:var(--c-text-inv);
  padding:150px 0 104px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  opacity:.18;
}
.page-hero .container{position:relative;z-index:2}
.hero-curve{
  position:absolute;left:-6%;bottom:-2px;width:112%;height:48px;
  background:var(--c-bg);
  border-radius:50% 50% 0 0 / 100% 100% 0 0;
  z-index:3;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-inv-2);margin-bottom:22px;
}
.breadcrumb a{transition:color var(--ease)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:rgba(201,195,210,.5)}
.breadcrumb .current{color:var(--c-text-inv)}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(15,185,174,.55);
  color:var(--c-accent);font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(15,185,174,.08);
}
.page-hero h1{
  margin-top:20px;
  font-size:44px;line-height:1.28;font-weight:700;letter-spacing:.01em;
  max-width:860px;
}
.hl{
  background:linear-gradient(transparent 64%,rgba(255,90,54,.55) 64%);
  padding:0 3px;
}
.page-hero .lede{
  margin-top:20px;max-width:680px;
  font-size:17px;line-height:1.9;color:var(--c-text-inv-2);
}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px 32px;margin-top:34px}
.hero-fact{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-inv-2)}
.hero-fact strong{
  font-family:var(--font-num);font-size:22px;font-weight:700;color:#fff;letter-spacing:.02em;
}
.hero-fact .dot{width:6px;height:6px;border-radius:2px;background:var(--c-accent);flex:0 0 auto}

/* ============ 筛选条 ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;
  padding:14px;border-radius:16px;
  background:#fff;border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.chip{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;
  border-radius:999px;font-size:14px;font-weight:600;
  color:var(--c-text-2);
  background:var(--c-bg-alt);
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.chip:hover{color:var(--c-accent-dark);border-color:rgba(15,185,174,.45);transform:translateY(-1px)}
.chip.is-active{
  background:var(--c-primary);color:#fff;
  border-color:var(--c-primary);
  box-shadow:0 6px 16px rgba(255,90,54,.24);
}

/* ============ 设备卡片矩阵 ============ */
.device-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.device-card{
  display:flex;flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.device-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DCD5CB}
.device-card .thumb{
  aspect-ratio:16/9;overflow:hidden;background:#EFEAE3;
}
.device-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s cubic-bezier(.4,0,.2,1);
}
.device-card:hover .thumb img{transform:scale(1.03)}
.device-card .card-body{padding:20px 20px 18px}
.badge{
  display:inline-block;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--c-accent-dark);background:var(--c-accent-soft);
}
.badge--primary{color:var(--c-primary-dark);background:var(--c-primary-soft)}
.badge--ok{color:var(--c-ok);background:rgba(31,169,122,.12)}
.badge--warn{color:var(--c-warn);background:rgba(232,163,61,.14)}
.device-card h3{
  margin-top:12px;font-size:19px;line-height:1.4;font-weight:600;
  transition:color var(--ease);
}
.device-card:hover h3{color:var(--c-primary)}
.device-card .card-body p{
  margin-top:10px;font-size:14px;line-height:1.8;color:var(--c-text-2);
}
.card-link{
  margin-top:auto;
  display:flex;align-items:center;gap:6px;
  padding:14px 20px;
  border-top:1px solid var(--c-line);
  font-size:14px;font-weight:600;color:var(--c-primary);
  transition:color var(--ease),background var(--ease);
}
.card-link svg{transition:transform var(--ease)}
.card-link:hover{background:rgba(255,90,54,.05);color:var(--c-primary-dark)}
.card-link:hover svg{transform:translateX(4px)}
.device-card.is-featured{
  grid-column:span 2;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  grid-template-areas:"thumb body" "thumb link";
  grid-template-rows:1fr auto;
}
.device-card.is-featured .thumb{grid-area:thumb;aspect-ratio:auto;height:100%;min-height:260px}
.device-card.is-featured .card-body{grid-area:body;padding:28px 26px 20px}
.device-card.is-featured .card-link{grid-area:link;padding:16px 26px}
.device-card.is-featured h3{font-size:22px}
.device-card.is-featured .card-body p{font-size:15px}
.is-hidden{display:none !important}
.empty-state{
  margin-top:24px;padding:40px 24px;text-align:center;
  background:#fff;border:1px dashed var(--c-line);border-radius:16px;
}
.empty-state strong{display:block;font-size:15px;color:var(--c-text-2);margin-bottom:14px}
.empty-state svg{margin:0 auto 16px;color:var(--c-text-3)}

/* ============ 保障条 ============ */
.assure-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;
}
.assure-item{padding:28px 24px;border-left:1px solid var(--c-line)}
.assure-item:first-child{border-left:0}
.assure-item .ico{
  width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);margin-bottom:14px;
}
.assure-item h4{font-size:16px;font-weight:600;letter-spacing:.01em}
.assure-item p{margin-top:8px;font-size:13px;line-height:1.75;color:var(--c-text-2)}

/* ============ 双栏说明 ============ */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:64px;align-items:start}
.split h2{font-size:30px;line-height:1.34;font-weight:700}
.split .lead{margin-top:16px;color:var(--c-text-2);font-size:16px;line-height:1.9}
.split .split-actions{margin-top:26px}
.steps{position:relative}
.step{display:flex;gap:18px;position:relative;padding-bottom:26px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:16px;top:38px;bottom:4px;
  border-left:1px dashed #DAD3C8;
}
.step:last-child::before{display:none}
.step-num{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  font-family:var(--font-num);font-size:14px;font-weight:700;
}
.step-body h4{font-size:17px;font-weight:600;line-height:1.5}
.step-body p{margin-top:6px;font-size:14px;line-height:1.8;color:var(--c-text-2)}
.tip-box{
  margin-top:36px;padding:20px 22px;border-radius:12px;
  background:#fff;border:1px solid var(--c-line);border-left:4px solid var(--c-accent);
}
.tip-box h4{font-size:15px;font-weight:600;color:var(--c-accent-dark)}
.tip-box p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--c-text-2)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,2fr);gap:56px;align-items:start}
.faq-side h2{font-size:30px;line-height:1.34;font-weight:700}
.faq-side p{margin-top:14px;color:var(--c-text-2);font-size:15px;line-height:1.85}
.faq-side .btn{margin-top:24px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:#D9D2C8;box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--c-text);
  transition:color var(--ease);
}
.faq-item.is-open .faq-q{color:var(--c-primary)}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows .25s cubic-bezier(.4,0,.2,1);
}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{
  padding:0 22px 20px 22px;
  font-size:15px;line-height:1.85;color:var(--c-text-2);
}

/* ============ CTA ============ */
.cta-band{
  background:#16121F;
  border-radius:20px;
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  color:var(--c-text-inv);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;
  background:radial-gradient(circle,rgba(255,90,54,.35),transparent 65%);
  pointer-events:none;
}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;position:relative;z-index:1}
.cta-band p{margin-top:10px;font-size:15px;color:var(--c-text-inv-2);position:relative;z-index:1}
.cta-actions{display:flex;align-items:center;gap:20px;flex:0 0 auto;position:relative;z-index:1}
.cta-actions .btn-text{color:#fff}
.cta-actions .btn-text:hover{color:var(--c-accent)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-ink);
  color:var(--c-text-inv);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-top:40px;border-top:1px solid rgba(255,255,255,.10);
}
.footer-brand p{
  margin-top:16px;font-size:14px;line-height:1.9;color:var(--c-text-inv-2);max-width:320px;
}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;border:1px solid rgba(255,255,255,.18);
  font-size:13px;color:var(--c-text-inv-2);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.footer-social a:hover{color:var(--c-accent);border-color:rgba(15,185,174,.55);background:rgba(15,185,174,.08)}
.footer-col h5{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--c-text-inv)}
.footer-col a{
  display:block;font-size:14px;line-height:2.2;color:var(--c-text-inv-2);
  transition:color var(--ease);
}
.footer-col a:hover{color:var(--c-accent)}
.footer-col p{font-size:14px;line-height:2.2;color:var(--c-text-inv-2)}
.footer-bottom{
  margin-top:48px;padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--c-text-inv-2);
}
.fb-links{display:flex;gap:20px}
.fb-links a{transition:color var(--ease)}
.fb-links a:hover{color:var(--c-accent)}

/* ============ 进场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s cubic-bezier(.4,0,.2,1),transform .6s cubic-bezier(.4,0,.2,1)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 断点 ============ */
@media (max-width:1280px){
  .page-hero h1{font-size:40px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .device-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .device-card.is-featured{grid-column:span 2}
  .split{grid-template-columns:1fr;gap:40px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-links{gap:0}
  .nav-link{padding:0 9px;font-size:14px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .hamburger{display:inline-flex}
  .nav-inner{gap:16px}
  .nav-actions{margin-left:auto}
  .page-hero{padding:130px 0 88px}
  .page-hero h1{font-size:34px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-head h2,.split h2,.faq-side h2{font-size:23px}
  .assure-strip{grid-template-columns:1fr 1fr;gap:0}
  .assure-item{border-left:0;padding:24px 18px}
  .assure-item:nth-child(odd){border-right:1px solid var(--c-line)}
  .assure-item:nth-child(n+3){border-top:1px solid var(--c-line)}
  .device-grid{grid-template-columns:1fr}
  .device-card.is-featured{grid-column:auto;grid-template-columns:1fr;grid-template-areas:"thumb" "body" "link";grid-template-rows:auto auto auto}
  .device-card.is-featured .thumb{aspect-ratio:16/9;height:auto;min-height:0}
  .device-card.is-featured .card-body{padding:20px}
  .device-card.is-featured .card-link{padding:14px 20px}
  .device-card.is-featured h3{font-size:19px}
  .page-hero h1{font-size:29px;line-height:1.34}
  .page-hero .lede{font-size:16px}
  .page-hero{padding:120px 0 74px}
  .hero-facts{gap:12px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band{padding:32px 24px;border-radius:16px}
  .cta-band h2{font-size:22px}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%;gap:14px}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
  .filter-bar{padding:12px;gap:8px}
  .chip{height:38px;padding:0 15px;font-size:13px}
}
@media (max-width:480px){
  .container{padding:0 18px}
  .logo-main{font-size:17px}
  .logo-main em{display:none}
  .page-hero h1{font-size:25px}
  .hero-fact strong{font-size:19px}
  .device-card h3{font-size:18px}
  .assure-item h4{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --c-primary:#FF5A36;
  --c-primary-dark:#E04624;
  --c-primary-soft:rgba(255,90,54,.10);
  --c-accent:#0FB9AE;
  --c-accent-dark:#0A9489;
  --c-accent-soft:rgba(15,185,174,.10);
  --c-ink:#16121F;
  --c-ink-2:#241C36;
  --c-bg:#FBF9F6;
  --c-bg-alt:#F3EFEA;
  --c-card:#FFFFFF;
  --c-text:#1B1725;
  --c-text-2:#5C5668;
  --c-text-3:#8A8494;
  --c-reverse:#F5F2EE;
  --c-reverse-2:#C9C3D2;
  --c-border:#E6E0D8;
  --c-border-dark:rgba(255,255,255,.14);
  --c-ok:#1FA97A;
  --c-warn:#E8A33D;
  --c-err:#D8402F;
  --c-info:#0FB9AE;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-tag:6px;
  --r-input:10px;
  --sh-1:0 2px 10px rgba(22,18,31,.05);
  --sh-2:0 10px 28px rgba(22,18,31,.10);
  --sh-3:0 18px 48px rgba(22,18,31,.16);
  --t:.22s cubic-bezier(.4,0,.2,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#FF5A36,#FF7A46);
  color:#fff;
  box-shadow:0 6px 16px rgba(255,90,54,.22);
}
.btn-primary:hover{background:linear-gradient(135deg,#E04624,#F0673A);transform:translateY(-1px);box-shadow:0 10px 24px rgba(224,70,36,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(224,70,36,.2)}
.btn-ghost{
  background:transparent;
  color:var(--c-accent-dark);
  border-color:var(--c-accent);
}
.btn-ghost:hover{background:var(--c-accent-soft);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{
  background:transparent;
  color:var(--c-reverse);
  border-color:rgba(255,255,255,.55);
}
.btn-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-primary);
  font-size:14px;
  font-weight:600;
}
.text-link .arw{transition:transform var(--t)}
.text-link:hover .arw{transform:translateX(4px)}
.text-link:hover{color:var(--c-primary-dark)}

/* ============ 头部导航 ============ */
.site-header{
  position:absolute;
  top:0;left:0;right:0;
  z-index:120;
  height:72px;
  display:flex;
  align-items:center;
  background:rgba(22,18,31,.34);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  box-shadow:0 6px 24px rgba(22,18,31,.14);
  transition:background .25s ease,height .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{
  position:fixed;
  height:64px;
  background:rgba(22,18,31,.96);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 8px 26px rgba(22,18,31,.28);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  width:100%;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--c-reverse);
  flex-shrink:0;
}
.logo-mark{
  display:flex;
  align-items:baseline;
  gap:8px;
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1;
}
.logo-mark em{
  font-style:normal;
  font-size:12px;
  font-weight:500;
  letter-spacing:.08em;
  color:var(--c-accent);
  padding:3px 7px;
  border:1px solid rgba(15,185,174,.5);
  border-radius:var(--r-tag);
  transition:color var(--t),border-color var(--t);
}
.logo-dot{
  width:8px;height:8px;border-radius:3px;
  background:var(--c-primary);
  box-shadow:0 0 0 4px rgba(255,90,54,.16);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  font-size:15px;
  color:var(--c-reverse);
  border-radius:8px;
  transition:color var(--t);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:4px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
  transform:translateX(-50%);
  transition:width var(--t);
}
.nav-link:hover{color:var(--c-accent)}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:var(--c-accent)}
.nav-link.is-active::after{width:60%}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  color:var(--c-reverse);
  border:1px solid rgba(255,255,255,.18);
  transition:background var(--t),color var(--t),border-color var(--t);
}
.icon-btn:hover{background:rgba(255,255,255,.12);color:var(--c-accent);border-color:rgba(15,185,174,.55)}
.icon-btn svg{width:18px;height:18px}
.hamburger{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  color:var(--c-reverse);
}
.hamburger span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:currentColor;
  position:relative;
  transition:background var(--t);
}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:currentColor;
  transition:transform var(--t),top var(--t);
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.hamburger[aria-expanded="true"] span{background:transparent}
.hamburger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.hamburger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

.search-bar{
  display:none;
  position:absolute;
  top:100%;left:0;right:0;
  padding:12px 0 16px;
  background:rgba(22,18,31,.96);
  border-bottom:1px solid rgba(255,255,255,.1);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.site-header.search-open .search-bar{display:block}
.search-form{
  display:flex;
  gap:10px;
  max-width:520px;
  margin-left:auto;
}
.search-input{
  flex:1;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);
  color:var(--c-reverse);
  font-size:14px;
  transition:border-color var(--t),box-shadow var(--t);
}
.search-input::placeholder{color:rgba(245,242,238,.55)}
.search-input:focus{
  outline:none;
  border-color:var(--c-accent);
  box-shadow:0 0 0 3px rgba(15,185,174,.2);
}

.mobile-panel{
  display:none;
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  z-index:110;
  padding:88px 24px 32px;
  background:rgba(22,18,31,.96);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  overflow-y:auto;
}
.mobile-panel.is-open{display:flex;flex-direction:column}
.mobile-panel a.m-link{
  display:flex;
  align-items:center;
  min-height:52px;
  font-size:16px;
  color:var(--c-reverse);
  border-bottom:1px solid rgba(255,255,255,.10);
  transition:color var(--t);
}
.mobile-panel a.m-link:hover,
.mobile-panel a.m-link.is-active{color:var(--c-accent)}
.mobile-panel .m-search{margin-top:20px;display:flex;gap:10px}
.mobile-panel .m-cta{margin-top:auto;padding-top:24px}
.mobile-panel .m-cta .btn{width:100%}

/* ============ 页面首屏 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:150px 0 108px;
  background:
    radial-gradient(900px 460px at 88% -10%,rgba(255,90,54,.30),transparent 65%),
    radial-gradient(700px 420px at 6% 100%,rgba(15,185,174,.20),transparent 66%),
    linear-gradient(155deg,#16121F 0%,#241C36 100%);
  color:var(--c-reverse);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  opacity:.20;
  mix-blend-mode:luminosity;
}
.page-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:56px;
  background:var(--c-bg);
  border-radius:100% 100% 0 0 / 56px 56px 0 0;
}
.page-hero .container{position:relative;z-index:2}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--c-accent);
  border:1px solid rgba(15,185,174,.55);
  background:rgba(15,185,174,.08);
}
.pill i{
  width:6px;height:6px;border-radius:50%;
  background:var(--c-accent);
  display:block;
}
.page-hero h1{
  margin-top:22px;
  font-size:44px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:.01em;
  max-width:840px;
}
.page-hero h1 .hl{
  position:relative;
  color:#fff;
  white-space:nowrap;
}
.page-hero h1 .hl::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:10px;
  border-radius:4px;
  background:rgba(255,90,54,.45);
  z-index:-1;
}
.hero-lead{
  margin-top:20px;
  max-width:680px;
  font-size:17px;
  line-height:1.85;
  color:var(--c-reverse-2);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 18px;
  margin-top:28px;
  font-size:13px;
  color:var(--c-reverse-2);
}
.hero-points span{display:inline-flex;align-items:center;gap:7px}
.hero-points i{
  width:6px;height:6px;
  background:var(--c-accent);
  border-radius:2px;
  display:block;
}
.hero-points .sep{width:1px;height:12px;background:rgba(255,255,255,.2);display:block}

/* ============ 面包屑 ============ */
.crumb-bar{padding:24px 0 0}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-text-2);
}
.breadcrumb a{color:var(--c-text-2);transition:color var(--t)}
.breadcrumb a:hover{color:var(--c-accent-dark)}
.breadcrumb .sep{color:var(--c-text-3)}
.breadcrumb .cur{color:var(--c-text-3)}

/* ============ 通用区块 ============ */
.section{padding:96px 0}
.section-alt{background:var(--c-bg-alt)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-title{
  font-size:30px;
  line-height:1.32;
  font-weight:700;
  letter-spacing:.01em;
}
.section-desc{
  margin-top:12px;
  max-width:640px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--c-accent-dark);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:20px;height:2px;
  background:var(--c-accent);
  border-radius:2px;
}

/* ============ FAQ 布局 ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:48px;
  align-items:start;
}
.anchor-aside{
  position:sticky;
  top:96px;
}
.anchor-card{
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:24px 20px;
  box-shadow:var(--sh-1);
}
.anchor-card h3{
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
  margin-bottom:14px;
}
.anchor-list{display:flex;flex-direction:column;gap:4px}
.anchor-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:6px 12px 6px 14px;
  border-radius:8px;
  font-size:14px;
  color:var(--c-text-2);
  transition:background var(--t),color var(--t);
}
.anchor-item::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%) scaleY(.4);
  width:3px;
  height:22px;
  border-radius:3px;
  background:var(--c-primary);
  opacity:0;
  transition:opacity var(--t),transform var(--t);
}
.anchor-item .num{
  font-family:"Inter","SF Pro Display",system-ui,sans-serif;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--c-text-3);
  min-width:18px;
}
.anchor-item:hover{background:var(--c-bg-alt);color:var(--c-text)}
.anchor-item.is-active{
  background:var(--c-primary-soft);
  color:var(--c-primary-dark);
  font-weight:600;
}
.anchor-item.is-active::before{opacity:1;transform:translateY(-50%) scaleY(1)}
.anchor-item.is-active .num{color:var(--c-primary)}
.anchor-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--c-border);
  font-size:13px;
  line-height:1.8;
  color:var(--c-text-3);
}

.faq-group + .faq-group{margin-top:44px}
.faq-group-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}
.faq-group-head .dot{
  width:8px;height:8px;border-radius:3px;
  background:var(--c-accent);
}
.faq-group-head h3{
  font-size:21px;
  font-weight:600;
  letter-spacing:.01em;
}
.faq-group-head .count{
  margin-left:auto;
  font-family:"Inter","SF Pro Display",system-ui,sans-serif;
  font-size:12px;
  font-weight:600;
  color:var(--c-text-3);
  letter-spacing:.04em;
  padding:3px 9px;
  border-radius:var(--r-tag);
  background:var(--c-bg-alt);
}
.faq-list{
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-item + .faq-item{border-top:1px solid var(--c-border)}
.faq-q{
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  text-align:left;
  padding:20px 24px;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--c-text);
  transition:color var(--t),background var(--t);
}
.faq-q:hover{color:var(--c-primary);background:#FDFBF9}
.faq-icon{
  position:relative;
  flex-shrink:0;
  margin-left:auto;
  width:26px;height:26px;
  border-radius:8px;
  border:1px solid var(--c-border);
  background:var(--c-bg-alt);
  transition:background var(--t),border-color var(--t),transform var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  width:12px;height:2px;
  border-radius:2px;
  background:var(--c-text-2);
  transform:translate(-50%,-50%);
  transition:transform var(--t),background var(--t);
}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item.is-open .faq-icon{background:var(--c-primary-soft);border-color:rgba(255,90,54,.4);transform:rotate(180deg)}
.faq-item.is-open .faq-icon::before{background:var(--c-primary)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(0);background:var(--c-primary)}
.faq-item.is-open .faq-q{color:var(--c-primary-dark)}
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows var(--t);
}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-2);
}
.faq-a p strong{color:var(--c-text);font-weight:600}

/* ============ 相关入口 ============ */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.entry-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px 22px;
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  overflow:hidden;
}
.entry-card::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--c-primary);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform var(--t);
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(15,185,174,.45)}
.entry-card:hover::before{transform:scaleY(1)}
.entry-ico{
  width:48px;height:48px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:var(--c-accent-soft);
  color:var(--c-accent-dark);
}
.entry-ico svg{width:22px;height:22px}
.entry-card h3{font-size:17px;font-weight:600;line-height:1.5}
.entry-card p{font-size:14px;line-height:1.75;color:var(--c-text-2)}
.entry-card .go{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--c-border);
  display:flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
}
.entry-card .go .arw{transition:transform var(--t)}
.entry-card:hover .go .arw{transform:translateX(4px)}

/* ============ 联系卡片 ============ */
.help-card{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:40px;
  align-items:center;
  padding:40px;
  border-radius:20px;
  background:var(--c-accent-soft);
  border:1px solid rgba(15,185,174,.22);
}
.help-card h2{
  font-size:26px;
  line-height:1.38;
  font-weight:700;
}
.help-card p{
  margin-top:14px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:560px;
}
.help-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:var(--r-tag);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  background:#fff;
  color:var(--c-text-2);
  border:1px solid var(--c-border);
}
.tag-ok{background:rgba(31,169,122,.10);color:#16805C;border-color:rgba(31,169,122,.28)}
.tag-warn{background:rgba(232,163,61,.12);color:#A97217;border-color:rgba(232,163,61,.3)}
.tag-info{background:rgba(15,185,174,.12);color:var(--c-accent-dark);border-color:rgba(15,185,174,.3)}
.help-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.help-figure{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid rgba(22,18,31,.08);
  box-shadow:var(--sh-1);
}
.help-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform var(--t);
}
.help-figure:hover img{transform:scale(1.03)}

/* ============ 底部 CTA ============ */
.cta-band{
  padding:0 0 96px;
}
.cta-inner{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:44px 48px;
  border-radius:20px;
  background:
    radial-gradient(640px 300px at 92% 0%,rgba(255,90,54,.34),transparent 62%),
    linear-gradient(140deg,#16121F 0%,#241C36 100%);
  color:var(--c-reverse);
}
.cta-inner h2{
  font-size:27px;
  line-height:1.4;
  font-weight:700;
  letter-spacing:.01em;
}
.cta-inner p{
  margin-top:10px;
  font-size:15px;
  color:var(--c-reverse-2);
  max-width:560px;
}
.cta-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-shrink:0;
}
.cta-link{
  font-size:14px;
  font-weight:600;
  color:var(--c-reverse);
  border-bottom:1px solid rgba(255,255,255,.35);
  padding-bottom:2px;
  transition:color var(--t),border-color var(--t);
  white-space:nowrap;
}
.cta-link:hover{color:var(--c-accent);border-color:var(--c-accent)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-ink);
  color:var(--c-reverse-2);
  padding:64px 0 0;
  border-top:1px solid rgba(255,255,255,.10);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.15fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:var(--c-reverse-2);
  max-width:320px;
}
.footer-social{
  display:flex;
  gap:10px;
  margin-top:20px;
}
.footer-social a{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-tag);
  border:1px solid rgba(255,255,255,.16);
  font-size:13px;
  color:var(--c-reverse-2);
  transition:color var(--t),border-color var(--t),background var(--t);
}
.footer-social a:hover{color:var(--c-accent);border-color:rgba(15,185,174,.5);background:rgba(15,185,174,.08)}
.footer-col h5{
  font-size:15px;
  font-weight:600;
  color:var(--c-reverse);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col a,.footer-col p{
  display:block;
  font-size:14px;
  line-height:2.2;
  color:var(--c-reverse-2);
  transition:color var(--t);
}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;
  color:var(--c-reverse-2);
  line-height:1.8;
}
.fb-links{display:flex;gap:18px}
.fb-links a{transition:color var(--t)}
.fb-links a:hover{color:var(--c-accent)}

/* ============ 进场动画 ============ */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .6s ease,transform .6s ease;
}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .nav-link{padding:0 9px;font-size:14px}
}
@media (max-width:1024px){
  .page-hero{padding:132px 0 96px}
  .page-hero h1{font-size:36px}
  .section{padding:72px 0}
  .faq-wrap{grid-template-columns:minmax(0,1fr);gap:32px}
  .anchor-aside{position:static}
  .anchor-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .anchor-item{flex:1 1 auto;justify-content:center;background:var(--c-bg-alt)}
  .anchor-item::before{display:none}
  .anchor-card{padding:18px}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .help-card{grid-template-columns:minmax(0,1fr);padding:32px}
  .help-figure{order:-1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:36px}
  .cta-actions{width:100%}
}
@media (max-width:880px){
  .nav-links{display:none}
  .hamburger{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .logo-mark em{display:none}
  .logo-mark{font-size:18px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .site-header{height:60px}
  .site-header.is-stuck{height:60px}
  .page-hero{padding:112px 0 84px}
  .page-hero::after{height:36px;border-radius:100% 100% 0 0 / 36px 36px 0 0}
  .page-hero h1{font-size:30px;line-height:1.35}
  .hero-lead{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-points{gap:10px 14px}
  .hero-points .sep{display:none}
  .section{padding:48px 0}
  .section-title{font-size:23px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px 18px}
  .entry-grid{grid-template-columns:minmax(0,1fr)}
  .help-card{padding:24px}
  .help-card h2{font-size:21px}
  .help-actions .btn{width:100%}
  .cta-band{padding-bottom:48px}
  .cta-inner{padding:28px 24px}
  .cta-inner h2{font-size:21px}
  .cta-actions{flex-direction:column;align-items:stretch;gap:12px}
  .cta-actions .btn{width:100%}
  .cta-link{text-align:center}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:32px}
  .site-footer{padding-top:48px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:480px){
  .page-hero h1{font-size:26px}
  .section-title{font-size:21px}
  .faq-group-head h3{font-size:18px}
  .logo-mark{font-size:16px}
  .pill{font-size:11px}
  .anchor-list{flex-direction:column}
  .anchor-item{justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
}