/* roulang page: index */
:root{
  --brand:#FF6B2C;
  --brand-soft:rgba(255,107,44,.10);
  --brand-shadow:0 10px 24px rgba(255,107,44,.32);
  --cyan:#23D3C0;
  --amber:#FFC94A;
  --ink:#0B0D14;
  --ink-2:#12141F;
  --bg:#F6F7FB;
  --bg-alt:#EEF1F8;
  --card:#FFFFFF;
  --t-dark:#F2F4F8;
  --t-dark-2:#A8AFC0;
  --t:#14161F;
  --t-2:#5A6274;
  --line:#E6E8F0;
  --line-dark:rgba(255,255,255,.10);
  --ok:#2FBF71;
  --warn:#F0B429;
  --r-card:16px;
  --r-img:12px;
  --r-ctl:10px;
  --sh-1:0 2px 4px rgba(15,18,30,.04), 0 12px 28px rgba(15,18,30,.06);
  --sh-2:0 18px 40px rgba(15,18,30,.12);
  --sec-lg:104px;
  --sec-md:72px;
  --sec-sm:56px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Barlow Condensed","Oswald","Noto Sans SC",sans-serif;
  --bs-primary:#FF6B2C;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-border-radius:16px;
  --bs-card-border-color:#E6E8F0;
  --bs-body-color:#14161F;
  --bs-link-color:#FF6B2C;
  --bs-link-hover-color:#23D3C0;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--t);
  background:var(--bg);
  overflow-x:hidden;
}
body.has-stickybar{padding-bottom:0}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:inherit;font-weight:700;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (max-width:991px){.shell{padding:0 24px}}
@media (max-width:575px){.shell{padding:0 16px}}
@media (min-width:1400px){.shell{max-width:1280px}}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(11,13,20,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background .25s ease, box-shadow .25s ease;
}
.site-header.is-solid{
  background:rgba(11,13,20,.94);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.nav-inner{
  display:flex;align-items:center;gap:20px;
  height:74px;transition:height .25s ease;
}
.site-header.is-solid .nav-inner{height:66px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),#ff8f5a);
  color:#fff;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(255,107,44,.35);
}
.brand-text{
  color:var(--t-dark);font-weight:800;font-size:17px;
  letter-spacing:-.01em;white-space:nowrap;
  text-shadow:0 1px 2px rgba(0,0,0,.4);
}
.brand-sub{display:block;font-size:11px;font-weight:500;color:var(--t-dark-2);letter-spacing:.18em;line-height:1}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:14px;flex:1 1 auto}
.nav-links a{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:15px;color:rgba(242,244,248,.86);
  text-shadow:0 1px 2px rgba(0,0,0,.35);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);
  transform-origin:left center;transition:transform .22s ease;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:#fff;font-weight:700}
.nav-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-search{position:relative;display:flex;align-items:center}
.search-toggle{
  width:38px;height:38px;border-radius:999px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:var(--t-dark);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.search-toggle:hover{border-color:var(--cyan);background:rgba(35,211,192,.12)}
.search-panel{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:0;opacity:0;pointer-events:none;overflow:hidden;
  transition:width .25s ease,opacity .25s ease;
}
.nav-search.is-open .search-panel{width:220px;opacity:1;pointer-events:auto}
.search-panel input{
  width:100%;height:38px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(11,13,20,.72);color:var(--t-dark);
  padding:0 16px;font-size:14px;
}
.search-panel input::placeholder{color:rgba(168,175,192,.8)}
.search-panel input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,107,44,.22)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  background:var(--brand);color:#fff;font-weight:700;font-size:15px;
  box-shadow:var(--brand-shadow);cursor:pointer;
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{filter:brightness(1.06);transform:translateY(-2px);color:#fff;box-shadow:0 14px 30px rgba(255,107,44,.42)}
.btn-brand:active{transform:translateY(0)}
.btn-brand.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  border:1px solid rgba(255,255,255,.34);background:transparent;color:var(--t-dark);
  font-weight:600;font-size:15px;cursor:pointer;
  transition:background .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
}
.btn-ghost:hover{border-color:var(--brand);background:rgba(255,107,44,.12);color:#fff;transform:translateY(-2px)}
.btn-ghost-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--t);
  font-weight:600;font-size:15px;cursor:pointer;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn-ghost-dark:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);transform:translateY(-2px)}
.menu-toggle{
  width:40px;height:40px;border-radius:10px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);
  color:var(--t-dark);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.menu-toggle span{display:block;width:16px;height:2px;background:currentColor;border-radius:2px}
.mobile-nav{
  background:rgba(11,13,20,.97);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid var(--line-dark);
}
.mobile-nav .m-list{padding:12px 0 18px}
.mobile-nav a{
  display:block;padding:13px 24px;color:var(--t-dark-2);font-size:15px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-nav a.is-active{color:var(--brand);font-weight:700}
.mobile-nav .m-cta{padding:16px 24px 22px}
.mobile-nav .btn-brand{width:100%}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;align-items:center;
  padding:150px 0 88px;
  background-image:linear-gradient(180deg,rgba(11,13,20,.70) 0%,rgba(11,13,20,.88) 60%,rgba(11,13,20,.94) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:var(--t-dark);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:26px 26px;opacity:.5;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  border:1px solid rgba(35,211,192,.55);color:var(--cyan);
  font-size:13px;letter-spacing:.06em;font-weight:600;
  background:rgba(35,211,192,.08);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.hero h1{
  margin:22px 0 18px;
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;line-height:1.2;letter-spacing:-.02em;color:#fff;
}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{
  font-size:17px;line-height:1.75;color:var(--t-dark-2);max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16);
}
.trust-item .num{
  font-family:var(--font-num);font-size:26px;font-weight:700;color:#fff;line-height:1.1;
}
.trust-item .num span{font-size:15px;color:var(--cyan);margin-left:2px}
.trust-item .lbl{font-size:13px;color:var(--t-dark-2);margin-top:4px;letter-spacing:.02em}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;border-radius:20px;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 0 0 1px rgba(35,211,192,.14), 0 30px 70px rgba(0,0,0,.55);
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;
  background:rgba(18,20,31,.9);border:1px solid var(--line-dark);
  border-radius:14px;padding:14px 18px;backdrop-filter:blur(8px);
  box-shadow:0 18px 40px rgba(0,0,0,.45);
}
.hero-float .hf-t{font-size:12px;color:var(--t-dark-2);letter-spacing:.06em}
.hero-float .hf-v{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--amber);margin-top:2px}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-lg) 0}
.section.alt{background:var(--bg-alt)}
.section.dark{background:var(--ink);color:var(--t-dark)}
.sec-head{max-width:720px;margin-bottom:46px}
.sec-eyebrow{
  font-family:var(--font-num);font-size:14px;letter-spacing:.22em;
  color:var(--brand);font-weight:600;text-transform:uppercase;
}
.sec-head h2{
  font-size:clamp(24px,3vw,36px);margin:12px 0 14px;font-weight:700;letter-spacing:-.01em;
}
.section.dark .sec-head h2{color:#fff}
.sec-head p{font-size:15px;color:var(--t-2);line-height:1.85;max-width:700px}
.section.dark .sec-head p{color:var(--t-dark-2)}
.sec-split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.sec-split .sec-head{margin-bottom:0}
.more-link{
  font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;
  display:inline-flex;align-items:center;gap:6px;
}
.more-link:hover{color:var(--cyan)}

/* ============ 卖点三连 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 24px 26px;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  overflow:hidden;
}
.feature-card::before{
  content:"";position:absolute;top:0;left:24px;width:44px;height:3px;
  background:var(--brand);border-radius:0 0 3px 3px;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.35)}
.feature-no{
  font-family:var(--font-num);font-size:38px;font-weight:700;
  color:rgba(20,22,31,.12);line-height:1;letter-spacing:.02em;
}
.feature-ico{
  width:46px;height:46px;border-radius:12px;margin:14px 0 16px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.feature-card h3{font-size:20px;margin-bottom:10px}
.feature-card p{font-size:14.5px;color:var(--t-2);line-height:1.8}

/* ============ 场景演示 ============ */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.scene-visual img{width:100%;border-radius:var(--r-card);box-shadow:var(--sh-1);border:1px solid var(--line)}
.scene-list{margin-top:28px;display:grid;gap:20px}
.scene-item{display:flex;gap:16px;align-items:flex-start}
.scene-item .si-no{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  background:var(--ink);color:var(--amber);
  font-family:var(--font-num);font-size:19px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.scene-item h3{font-size:17px;margin-bottom:6px}
.scene-item p{font-size:14.5px;color:var(--t-2);line-height:1.8}

/* ============ 社会认同 ============ */
.stats-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:rgba(255,255,255,.10);border:1px solid var(--line-dark);border-radius:var(--r-card);
  overflow:hidden;margin-bottom:52px;
}
.stat-cell{background:var(--ink-2);padding:30px 22px;text-align:center}
.stat-cell .sv{
  font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--brand);line-height:1.1;
}
.stat-cell .sl{font-size:13px;color:var(--t-dark-2);margin-top:8px;letter-spacing:.02em}
.review-track{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:52px;
}
.review-card{
  background:rgba(255,255,255,.04);border:1px solid var(--line-dark);
  border-radius:var(--r-card);padding:24px;
}
.review-card .rc-star{color:var(--amber);font-size:14px;letter-spacing:.14em}
.review-card p{font-size:14.5px;color:var(--t-dark-2);line-height:1.85;margin:14px 0 18px}
.review-user{display:flex;align-items:center;gap:12px}
.review-avatar{
  width:38px;height:38px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),#ff9a66);
  color:#fff;font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
}
.review-user .ru-n{font-size:14px;font-weight:600;color:#fff}
.review-user .ru-t{font-size:12px;color:var(--t-dark-2)}
.env-wall{
  display:grid;grid-template-columns:repeat(8,1fr);gap:12px;
  border-top:1px solid var(--line-dark);padding-top:34px;
}
.env-item{
  text-align:center;padding:16px 8px;border-radius:var(--r-ctl);
  border:1px solid var(--line-dark);background:rgba(255,255,255,.03);
  font-size:13px;color:var(--t-dark-2);letter-spacing:.02em;
  filter:grayscale(1);transition:filter .25s ease,border-color .25s ease,color .25s ease;
}
.env-item:hover{filter:grayscale(0);border-color:rgba(35,211,192,.5);color:#fff}

/* ============ CMS 列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.post-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.post-thumb{overflow:hidden;aspect-ratio:16/10;background:var(--bg-alt)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.post-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  border:1px solid rgba(35,211,192,.6);color:#178f83;background:rgba(35,211,192,.10);
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.post-time{font-family:var(--font-num);font-size:14px;color:var(--t-2);letter-spacing:.04em}
.post-card h3{
  font-size:17.5px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.post-card:hover h3{color:var(--brand)}
.post-card .post-sum{
  font-size:14px;color:var(--t-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t-2);
}
.post-foot .pf-go{color:var(--brand);font-weight:700}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state .es-ico{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  border:1px solid var(--line);color:var(--t-2);
  display:flex;align-items:center;justify-content:center;
}
.empty-state p{color:var(--t-2);font-size:15px;margin-bottom:20px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-acc .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.faq-acc .accordion-button{
  background:transparent;box-shadow:none;border-radius:0;
  padding:22px 52px 22px 20px;font-size:16px;font-weight:700;color:var(--t);
  transition:color .2s ease,padding .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);padding-left:24px;border-left:3px solid var(--brand)}
.faq-acc .accordion-button:hover{color:var(--brand)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:none}
.faq-acc .accordion-button::after{
  content:"";width:16px;height:16px;background-color:currentColor;background-image:none;
  -webkit-mask-image:linear-gradient(#000,#000),linear-gradient(#000,#000);
  mask-image:linear-gradient(#000,#000),linear-gradient(#000,#000);
  -webkit-mask-size:16px 2px,2px 16px;
  mask-size:16px 2px,2px 16px;
  -webkit-mask-position:center,center;
  mask-position:center,center;
  -webkit-mask-repeat:no-repeat,no-repeat;
  mask-repeat:no-repeat,no-repeat;
  transition:transform .22s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  -webkit-mask-image:linear-gradient(#000,#000);
  mask-image:linear-gradient(#000,#000);
  -webkit-mask-size:16px 2px;
  mask-size:16px 2px;
  transform:rotate(180deg);
}
.faq-acc .accordion-body{
  padding:0 24px 24px;font-size:14.5px;line-height:1.85;color:var(--t-2);
}

/* ============ CTA / 表单 ============ */
.cta-zone{
  background:linear-gradient(135deg,#12141F 0%,#0B0D14 100%);
  border:1px solid var(--line-dark);border-radius:20px;
  padding:52px 48px;color:var(--t-dark);
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.cta-zone h2{font-size:clamp(22px,2.6vw,32px);color:#fff;margin-bottom:14px}
.cta-zone p{font-size:15px;color:var(--t-dark-2);line-height:1.85}
.cta-points{margin-top:22px;display:grid;gap:12px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t-dark-2)}
.cta-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);flex:0 0 auto}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
}
.form-card .fc-t{font-size:16px;font-weight:700;color:var(--t);margin-bottom:4px}
.form-card .fc-s{font-size:13px;color:var(--t-2);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--t-2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-ctl);
  background:var(--bg);color:var(--t);padding:0 14px;height:46px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,107,44,.18);
}
.form-note{font-size:12.5px;color:var(--t-2);margin-top:12px;line-height:1.7}
.form-card .btn-brand{width:100%;margin-top:4px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--t-dark-2);padding:76px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:52px;border-bottom:1px solid var(--line-dark);
}
.footer-brand .fb-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .fb-logo span{font-size:17px;font-weight:800;color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700}
.footer-col li{line-height:1}
.footer-col a{
  display:inline-block;padding:9px 0;font-size:14px;color:var(--t-dark-2);
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-contact li{display:flex;gap:10px;font-size:14px;padding:7px 0;align-items:flex-start}
.footer-contact .fc-k{color:#fff;font-weight:600;flex:0 0 auto}
.qr-box{
  margin-top:16px;width:104px;height:104px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.22);background:rgba(255,255,255,.04);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--t-dark-2);text-align:center;line-height:1.5;padding:10px;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 26px;font-size:12.5px;color:#7d8496;
}
.footer-bottom a{color:#7d8496}
.footer-bottom a:hover{color:var(--cyan)}

/* ============ 底部固定转化条 ============ */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1030;
  background:rgba(11,13,20,.96);
  border-top:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transform:translateY(110%);opacity:0;
  transition:transform .25s ease,opacity .25s ease;
  padding-bottom:env(safe-area-inset-bottom);
}
.sticky-bar.is-on{transform:translateY(0);opacity:1}
.sticky-inner{
  max-width:1200px;margin:0 auto;padding:12px 32px;
  display:flex;align-items:center;gap:18px;color:var(--t-dark);
}
.sticky-inner .sb-text{font-size:14px;color:var(--t-dark-2)}
.sticky-inner .sb-text strong{color:#fff;font-weight:700}
.sticky-inner .sb-cta{margin-left:auto}
.bar-close{
  width:30px;height:30px;border-radius:50%;flex:0 0 auto;
  border:1px solid rgba(255,255,255,.2);background:transparent;color:var(--t-dark-2);
  cursor:pointer;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:color .2s ease,border-color .2s ease;
}
.bar-close:hover{color:#fff;border-color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-grid{gap:40px}
  .env-wall{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:991px){
  :root{--sec-lg:72px}
  .hero{padding:132px 0 72px;min-height:auto}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-visual{order:-1}
  .hero-float{left:auto;right:14px;bottom:14px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr;gap:34px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .review-track{grid-template-columns:repeat(3,1fr)}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .cta-zone{grid-template-columns:1fr;gap:34px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .trust-bar{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  :root{--sec-lg:56px}
  .feature-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .review-track{
    display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
    padding-bottom:10px;-webkit-overflow-scrolling:touch;
  }
  .review-track::-webkit-scrollbar{height:4px}
  .review-track::-webkit-scrollbar-thumb{background:rgba(255,255,255,.2);border-radius:4px}
  .review-card{flex:0 0 84%;scroll-snap-align:start}
  .env-wall{grid-template-columns:repeat(3,1fr)}
  .sec-split{flex-direction:column;align-items:flex-start;gap:12px}
  .sticky-inner{padding:10px 16px;gap:12px}
  .sticky-inner .sb-text{font-size:13px}
  .sticky-inner .sb-text .sb-long{display:none}
  .sticky-inner .btn-brand{height:38px;padding:0 16px;font-size:13px}
  .bar-close{width:26px;height:26px}
}
@media (max-width:575px){
  .brand-text{font-size:15px}
  .brand-sub{display:none}
  .hero h1{font-size:clamp(28px,7.6vw,36px)}
  .hero-sub{font-size:15px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}
  .trust-bar{grid-template-columns:repeat(2,1fr);gap:14px}
  .stats-row{grid-template-columns:1fr}
  .env-wall{grid-template-columns:repeat(2,1fr)}
  .cta-zone{padding:32px 20px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --brand:#FF6B2C;
  --brand-hi:#FF8347;
  --brand-deep:#E85A1C;
  --accent:#23D3C0;
  --accent-deep:#12A695;
  --amber:#FFC94A;
  --ink:#0B0D14;
  --ink-2:#12141F;
  --paper:#F6F7FB;
  --paper-2:#EEF1F8;
  --card:#FFFFFF;
  --tx:#14161F;
  --tx-2:#5A6274;
  --tx-inv:#F2F4F8;
  --tx-inv-2:#A8AFC0;
  --line:#E6E8F0;
  --line-inv:rgba(255,255,255,.10);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 2px 4px rgba(15,18,30,.04),0 12px 28px rgba(15,18,30,.06);
  --sh-2:0 18px 40px rgba(15,18,30,.12);
  --sh-brand:0 10px 24px rgba(255,107,44,.32);
  --nav-h:74px;
  --sec:104px;
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","Oswald","Arial Narrow",var(--font-cn);
  --bs-primary:#FF6B2C;
  --bs-body-color:#14161F;
  --bs-body-bg:#F6F7FB;
  --bs-border-radius:10px;
  --bs-card-border-color:#E6E8F0;
  --bs-font-sans-serif:var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--tx);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
button,input{font-family:inherit;}
ul,ol{padding-left:1.25em;}
h1,h2,h3,h4{margin:0;color:var(--tx);letter-spacing:-.01em;}
p{margin:0 0 1em;}
.shell{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 16px;
}
@media (min-width:768px){.shell{padding:0 24px;}}
@media (min-width:1200px){.shell{padding:0 32px;}}
@media (min-width:1400px){.shell{max-width:1280px;}}
.num{font-family:var(--font-num);letter-spacing:.02em;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(11,13,20,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  box-shadow:0 6px 24px rgba(6,8,14,.22);
  transition:background-color .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{
  background:rgba(11,13,20,.94);
  box-shadow:0 10px 34px rgba(4,6,12,.42);
}
.nav-shell{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:18px;
  transition:height .24s ease;
}
.site-header.is-scrolled .nav-shell{height:68px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--tx-inv);flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#FF8A50,#FF6B2C 62%,#E85A1C);
  display:grid;place-items:center;
  font-weight:800;font-size:16px;color:#fff;
  box-shadow:0 8px 20px rgba(255,107,44,.34);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;text-shadow:0 1px 2px rgba(0,0,0,.4);}
.nav-links{margin-left:auto;align-items:center;gap:26px;}
.nav-links a{
  position:relative;
  font-size:14.5px;
  color:rgba(242,244,248,.82);
  padding:6px 0;
  text-shadow:0 1px 2px rgba(0,0,0,.35);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:-4px;height:2px;width:0;
  background:var(--brand);border-radius:2px;transform:translateX(-50%);
  transition:width .22s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:#fff;}
.nav-links a.is-active::after{width:22px;}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:16px;}
.icon-btn{
  width:38px;height:38px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  color:var(--tx-inv);
  display:grid;place-items:center;
  cursor:pointer;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease;
}
.icon-btn:hover{background:rgba(35,211,192,.16);border-color:rgba(35,211,192,.55);color:#fff;}
.burger{
  width:40px;height:38px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  display:grid;place-items:center;gap:4px;
  cursor:pointer;padding:9px 10px;
}
.burger span{display:block;height:2px;width:100%;background:var(--tx-inv);border-radius:2px;}
.nav-search{
  display:none;
  border-top:1px solid rgba(255,255,255,.08);
  background:rgba(11,13,20,.96);
  padding:14px 0 18px;
}
.nav-search.is-open{display:block;}
.search-form{display:flex;gap:10px;}
.search-form input{
  flex:1;height:46px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  color:var(--tx-inv);
  padding:0 20px;font-size:15px;outline:none;
}
.search-form input::placeholder{color:#8d94a6;}
.search-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(35,211,192,.18);}
.mobile-panel{
  display:none;
  background:rgba(11,13,20,.97);
  border-top:1px solid rgba(255,255,255,.08);
  padding:10px 0 18px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:block;color:var(--tx-inv-2);
  font-size:15px;line-height:46px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-panel a:last-child{border-bottom:0;}
.mobile-panel a.is-active{color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;
  border:1px solid var(--brand);
  border-radius:999px;
  padding:12px 26px;
  font-size:15px;font-weight:700;
  box-shadow:var(--sh-brand);
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{background:var(--brand-hi);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(255,107,44,.4);}
.btn-brand:active{transform:translateY(0);}
.btn-brand:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--tx);
  border:1px solid var(--line);
  border-radius:999px;
  padding:12px 26px;
  font-size:15px;font-weight:700;
  transition:transform .2s ease,border-color .2s ease,color .2s ease,background-color .2s ease;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-deep);background:rgba(255,107,44,.06);transform:translateY(-2px);}
.btn-ghost:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-sm{padding:9px 18px;font-size:13.5px;}
.btn-ghost-inv{
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.28);
  color:var(--tx-inv);border-radius:999px;
  padding:11px 22px;font-size:14.5px;font-weight:600;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease;
}
.btn-ghost-inv:hover{background:rgba(35,211,192,.14);border-color:var(--accent);color:#fff;}

/* ---------- 文章页头 ---------- */
.page-head{
  position:relative;
  margin-top:calc(-1 * var(--nav-h));
  padding:calc(var(--nav-h) + 46px) 0 54px;
  min-height:320px;
  background-image:linear-gradient(180deg,rgba(11,13,20,.70),rgba(11,13,20,.92)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  color:var(--tx-inv);
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.4;pointer-events:none;
}
.page-head .shell{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--tx-inv-2);margin-bottom:18px;}
.crumbs a{color:var(--tx-inv-2);}
.crumbs a:hover{color:var(--accent);}
.crumbs span.sep{opacity:.5;}
.crumbs .cur{color:rgba(242,244,248,.92);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.cat-tag{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid rgba(35,211,192,.5);
  color:var(--accent);
  background:rgba(35,211,192,.10);
  border-radius:999px;
  padding:5px 14px;font-size:12.5px;letter-spacing:.04em;
  margin-bottom:16px;
}
.page-head h1{
  color:#fff;
  font-size:clamp(26px,3.6vw,42px);
  font-weight:800;
  line-height:1.28;
  letter-spacing:-.02em;
  max-width:920px;
  margin-bottom:20px;
}
.meta-row{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13.5px;color:var(--tx-inv-2);
  padding-top:18px;
  border-top:1px solid rgba(255,255,255,.12);
}
.meta-row b{color:rgba(242,244,248,.94);font-weight:600;}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.28);align-self:center;}

/* ---------- 主体布局 ---------- */
.main-wrap{padding:var(--sec) 0;}
@media (max-width:991px){.main-wrap{padding:72px 0;}}
@media (max-width:575px){.main-wrap{padding:56px 0;}}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;}
@media (min-width:1200px){
  .article-grid{grid-template-columns:minmax(0,1fr) 300px;gap:56px;}
}
.article-main{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:34px 26px 38px;
}
@media (min-width:768px){.article-main{padding:46px 48px 52px;}}
@media (min-width:1200px){.article-main{padding:50px 56px 56px;}}

.sec-head{margin-bottom:28px;}
.sec-head h2{
  font-size:clamp(22px,2.5vw,30px);
  font-weight:700;
  position:relative;
  padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  background:var(--brand);border-radius:3px;
}
.sec-head p{margin:10px 0 0 16px;color:var(--tx-2);font-size:14.5px;}

/* ---------- 正文排版 ---------- */
.article-body{font-size:16.5px;line-height:1.9;color:var(--tx);max-width:780px;}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.3vw,26px);
  font-weight:700;
  line-height:1.4;
  margin:40px 0 16px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  background:var(--brand);border-radius:3px;
}
.article-body h3{font-size:20px;font-weight:700;margin:24px 0 12px;}
.article-body h4{font-size:17px;font-weight:700;margin:20px 0 10px;}
.article-body a{color:var(--accent-deep);border-bottom:1px solid rgba(18,166,149,.35);}
.article-body a:hover{color:var(--brand-deep);border-color:var(--brand);}
.article-body strong{font-weight:700;}
.article-body img{border-radius:var(--r-img);margin:18px 0;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--tx-2);text-align:center;margin-top:8px;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  border-left:3px solid var(--brand);
  background:var(--paper-2);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--tx-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.4em;}
.article-body li{margin-bottom:.5em;line-height:1.9;}
.article-body table{
  width:100%;min-width:520px;border-collapse:collapse;
  display:block;overflow-x:auto;
  margin:20px 0;font-size:15px;
}
.article-body thead th{background:var(--paper-2);font-weight:700;text-align:left;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;}
.article-body tbody tr:nth-child(even){background:#fafbfe;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:var(--paper-2);
  max-width:780px;
}
.empty-state i{font-size:38px;color:var(--accent-deep);margin-bottom:16px;}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.empty-state p{color:var(--tx-2);font-size:15px;margin-bottom:22px;}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:22px;}
@media (min-width:1200px){
  .article-side{position:sticky;top:calc(var(--nav-h) + 20px);align-self:start;}
}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:22px 22px 24px;
}
.side-card h3{
  font-size:16px;font-weight:700;margin-bottom:14px;
  padding-bottom:12px;border-bottom:1px solid var(--line);
}
.side-list{list-style:none;padding:0;margin:0;}
.side-list li a{
  display:flex;align-items:center;gap:10px;
  font-size:14.5px;line-height:34px;color:var(--tx-2);
  border-bottom:1px dashed var(--line);
}
.side-list li:last-child a{border-bottom:0;}
.side-list li a:hover{color:var(--brand-deep);}
.side-list li a i{color:var(--accent-deep);font-size:12px;}
.side-tips{list-style:none;padding:0;margin:0;}
.side-tips li{
  position:relative;padding-left:18px;
  font-size:14px;line-height:1.8;color:var(--tx-2);
  margin-bottom:12px;
}
.side-tips li::before{
  content:"";position:absolute;left:0;top:.65em;
  width:7px;height:7px;border-radius:50%;
  background:var(--brand);
}
.side-cta{
  background:linear-gradient(160deg,#161A26,#0B0D14 70%);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-card);
  padding:24px 22px;
  color:var(--tx-inv-2);
}
.side-cta h3{font-size:17px;color:#fff;font-weight:700;margin-bottom:10px;}
.side-cta p{font-size:13.8px;line-height:1.8;margin-bottom:16px;}
.side-cta .btn-brand{width:100%;padding:11px 18px;font-size:14.5px;}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 var(--sec);}
@media (max-width:991px){.related{padding-bottom:72px;}}
@media (max-width:575px){.related{padding-bottom:56px;}}
.related-head{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;justify-content:space-between;margin-bottom:26px;}
.related-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;position:relative;padding-left:16px;}
.related-head h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  background:var(--brand);border-radius:3px;
}
.related-head a{font-size:14px;color:var(--brand-deep);font-weight:600;}
.related-head a:hover{color:var(--accent-deep);}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:992px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#d9dded;}
.post-thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--paper-2);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap;}
.badge-soft{
  display:inline-flex;align-items:center;
  border:1px solid rgba(35,211,192,.55);
  color:var(--accent-deep);
  background:rgba(35,211,192,.08);
  border-radius:999px;
  padding:3px 11px;
  font-size:12px;letter-spacing:.04em;
}
.post-date{font-family:var(--font-num);font-size:13px;color:var(--tx-2);letter-spacing:.03em;}
.post-card h3{font-size:17.5px;font-weight:700;line-height:1.5;margin-bottom:10px;}
.post-card:hover h3{color:var(--brand-deep);}
.post-card p{font-size:14px;line-height:1.75;color:var(--tx-2);margin-bottom:16px;}
.post-more{margin-top:auto;font-size:13.5px;font-weight:700;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px;}
.post-card:hover .post-more{color:var(--accent-deep);}

/* ---------- 文末返回 ---------- */
.back-row{
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;
  margin-top:44px;
  padding-top:28px;
  border-top:1px solid var(--line);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--tx-inv-2);
  padding:72px 0 28px;
  border-top:1px solid var(--line-inv);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:38px;}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:44px;}}
.footer-brand .fb-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;max-width:420px;margin:0;}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:14px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col ul li a{display:block;line-height:36px;font-size:14px;color:var(--tx-inv-2);}
.footer-col ul li a:hover{color:var(--accent);}
.footer-contact li{display:flex;justify-content:space-between;gap:12px;line-height:36px;font-size:13.5px;}
.fc-k{color:#848ca0;}
.qr-box{
  margin-top:14px;
  border:1px dashed rgba(255,255,255,.2);
  border-radius:var(--r-img);
  padding:16px;
  text-align:center;
  font-size:13px;
  color:var(--tx-inv-2);
}
.footer-bottom{
  margin-top:48px;padding-top:20px;
  border-top:1px solid var(--line-inv);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:#868ea2;
}
@media (max-width:575px){
  .article-main{padding:26px 18px 30px;}
  .page-head{padding:calc(var(--nav-h) + 30px) 0 40px;min-height:280px;}
  .meta-row{gap:8px 14px;font-size:12.5px;}
  .back-row .btn-brand,.back-row .btn-ghost{width:100%;}
}

/* roulang page: category1 */
:root{
  --brand:#FF6B2C;
  --brand-soft:#ff7d45;
  --brand-rgb:255,107,44;
  --accent:#23D3C0;
  --amber:#FFC94A;
  --ink:#0B0D14;
  --ink-2:#12141F;
  --bg:#F6F7FB;
  --bg-alt:#EEF1F8;
  --card:#FFFFFF;
  --text:#14161F;
  --text-2:#5A6274;
  --on-dark:#F2F4F8;
  --on-dark-2:#A8AFC0;
  --line:#E6E8F0;
  --line-dark:rgba(255,255,255,.10);
  --ok:#2FBF71;
  --warn:#F0B429;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 2px 4px rgba(15,18,30,.04),0 12px 28px rgba(15,18,30,.06);
  --sh-2:0 18px 40px rgba(15,18,30,.12);
  --sh-brand:0 10px 24px rgba(255,107,44,.32);
  --t:.2s ease;
  --shell:1200px;
  --bs-primary:#FF6B2C;
  --bs-primary-rgb:255,107,44;
  --bs-body-color:#14161F;
  --bs-body-font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-border-radius:12px;
  --bs-card-border-color:#E6E8F0;
  --bs-link-color:#14161F;
  --bs-link-hover-color:#FF6B2C;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t)}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.3}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 32px}
.num{font-family:"Barlow Condensed","Oswald","Arial Narrow",sans-serif;font-weight:600;letter-spacing:.02em}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(11,13,20,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(11,13,20,.94);box-shadow:0 14px 34px rgba(0,0,0,.35)}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--on-dark);flex:0 0 auto}
.brand:hover{color:var(--on-dark)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#ff9152);
  color:#fff;font-weight:800;font-size:17px;letter-spacing:-.02em;
  box-shadow:0 6px 16px rgba(255,107,44,.35);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.nav-links{align-items:center;gap:4px;margin-left:8px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:rgba(242,244,248,.82);
  transition:color var(--t),background-color var(--t);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.is-active{color:#fff;font-weight:700}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.04);color:var(--on-dark);display:inline-flex;
  align-items:center;justify-content:center;cursor:pointer;transition:all var(--t);
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent)}
.nav-search{
  display:none;align-items:center;gap:8px;height:38px;padding:0 14px;
  border-radius:999px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
}
.nav-search.is-open{display:inline-flex}
.nav-search input{
  width:170px;border:0;background:transparent;color:var(--on-dark);
  font-size:14px;outline:none;
}
.nav-search input::placeholder{color:rgba(168,175,192,.9)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);border:1px solid var(--brand);color:#fff;
  border-radius:999px;padding:11px 24px;font-size:15px;font-weight:600;
  box-shadow:var(--sh-brand);cursor:pointer;
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-brand:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,107,44,.4)}
.btn-brand:active{transform:translateY(0)}
.btn-brand:disabled{opacity:.4;box-shadow:none;cursor:not-allowed}
.btn-brand.btn-sm{padding:8px 18px;font-size:14px;box-shadow:0 8px 18px rgba(255,107,44,.28)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;border:1px solid rgba(255,255,255,.3);color:var(--on-dark);
  border-radius:999px;padding:11px 24px;font-size:15px;font-weight:600;cursor:pointer;
  transition:all .2s ease;
}
.btn-ghost:hover{background:rgba(255,107,44,.1);border-color:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;border:1px solid var(--line);color:var(--text);
  border-radius:999px;padding:11px 24px;font-size:15px;font-weight:600;cursor:pointer;
  transition:all .2s ease;
}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:rgba(255,107,44,.06);transform:translateY(-2px)}
.hamburger{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.04);display:inline-flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--on-dark);transition:transform .25s ease,opacity .25s ease}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-panel{
  display:none;background:rgba(11,13,20,.97);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid var(--line-dark);padding:12px 0 20px;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:block;padding:13px 4px;color:rgba(242,244,248,.86);
  font-size:15.5px;font-weight:500;border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-panel a.is-active{color:var(--brand);font-weight:700}
.mobile-panel a:last-child{border-bottom:0}
body.nav-open{overflow:hidden}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:140px 0 62px;
  background-image:linear-gradient(115deg,rgba(11,13,20,.78) 0%,rgba(11,13,20,.93) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:var(--on-dark);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:22px 22px;pointer-events:none;
}
.page-hero .shell{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--on-dark-2);margin-bottom:18px}
.crumbs a{color:var(--on-dark-2)}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:rgba(168,175,192,.6)}
.crumbs .cur{color:rgba(242,244,248,.95)}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 14px;border-radius:999px;
  border:1px solid rgba(35,211,192,.5);
  color:var(--accent);font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:rgba(35,211,192,.08);margin-bottom:18px;
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(35,211,192,.16)}
.page-hero h1{
  font-size:clamp(27px,4vw,44px);font-weight:800;line-height:1.22;letter-spacing:-.02em;
  color:#fff;max-width:880px;
}
.page-hero .sub{
  margin-top:16px;font-size:17px;line-height:1.7;color:var(--on-dark-2);max-width:660px;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;padding-top:20px;border-top:1px solid var(--line-dark)}
.hero-meta div{display:flex;align-items:baseline;gap:8px}
.hero-meta .v{font-size:22px;font-weight:700;color:#fff;font-family:"Barlow Condensed","Oswald","Arial Narrow",sans-serif}
.hero-meta .k{font-size:13px;color:var(--on-dark-2)}

/* ---------- sections ---------- */
.sec{padding:96px 0}
.sec-alt{background:var(--bg-alt)}
.sec-dark{background:var(--ink);color:var(--on-dark)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head .eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.12em;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{
  position:relative;font-size:clamp(23px,2.8vw,34px);font-weight:700;line-height:1.32;
  padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;
  background:var(--brand);
}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:15.5px;max-width:720px}
.sec-dark .sec-head h2,.sec-dark h2{color:#fff}
.sec-dark .sec-head p{color:var(--on-dark-2)}

/* split blocks */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split.reverse{grid-template-columns:.95fr 1.05fr}
.split.reverse .split-media{order:-1}
.split h3{font-size:21px;font-weight:700;margin-bottom:14px}
.split p{color:var(--text-2);font-size:15.5px;max-width:640px}
.split-media{position:relative}
.split-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.split-media .tagline{
  position:absolute;left:16px;bottom:16px;
  background:rgba(11,13,20,.82);color:#fff;font-size:13px;font-weight:600;
  padding:7px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.ticks{margin:22px 0 0;display:grid;gap:12px}
.ticks li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text)}
.ticks li .ic{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:rgba(35,211,192,.14);border:1px solid rgba(35,211,192,.45);
  display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.ticks li .ic::after{content:"";width:8px;height:4px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg) translateY(-1px)}
.ticks li span{line-height:1.75;color:var(--text-2)}
.ticks li b{color:var(--text)}

/* points band */
.points{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.point-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 24px 24px;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  overflow:hidden;
}
.point-card::before{
  content:"";position:absolute;left:24px;top:0;width:44px;height:3px;border-radius:0 0 3px 3px;background:var(--brand);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.35)}
.point-card .idx{
  font-family:"Barlow Condensed","Oswald","Arial Narrow",sans-serif;
  font-size:36px;font-weight:700;color:rgba(255,107,44,.22);line-height:1;letter-spacing:.02em;
}
.point-card h3{font-size:19px;font-weight:700;margin:14px 0 10px}
.point-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0}

/* faq */
.faq{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:6px 10px;overflow:hidden}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0}
.faq .accordion-item:last-child{border-bottom:0}
.faq .accordion-header{margin:0;font-size:inherit}
.faq .accordion-button{
  position:relative;width:100%;background:transparent;border:0;box-shadow:none;
  text-align:left;font-size:16px;font-weight:700;color:var(--text);
  padding:20px 52px 20px 16px;border-radius:0;line-height:1.6;
  transition:background-color var(--t),color var(--t),padding var(--t);
}
.faq .accordion-button:not(.collapsed){
  background:#FFF7F2;color:var(--brand);box-shadow:inset 3px 0 0 var(--brand);
  padding-left:22px;
}
.faq .accordion-button:focus{box-shadow:none;outline:none}
.faq .accordion-button:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.faq .accordion-button::after{display:none}
.faq-icon{position:absolute;right:20px;top:50%;width:16px;height:16px;transform:translateY(-50%)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--text-2);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease,background-color .25s ease;
}
.faq-icon::before{left:0;top:7.25px;width:16px;height:1.6px}
.faq-icon::after{left:7.2px;top:0;width:1.6px;height:16px}
.faq .accordion-button:not(.collapsed) .faq-icon::before{background:var(--brand)}
.faq .accordion-button:not(.collapsed) .faq-icon::after{transform:scaleY(0);opacity:0}
.faq .accordion-body{padding:0 22px 22px;color:var(--text-2);font-size:14.5px;line-height:1.85}
.faq .accordion-body p{margin-bottom:.7em}
.faq .accordion-body p:last-child{margin-bottom:0}

/* cta band */
.cta-band{
  background:linear-gradient(120deg,rgba(11,13,20,.94),rgba(18,20,31,.98)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-radius:var(--r-card);padding:48px 44px;color:var(--on-dark);
  display:flex;flex-wrap:wrap;align-items:center;gap:28px;justify-content:space-between;
  border:1px solid var(--line-dark);
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);font-weight:700;color:#fff;max-width:560px}
.cta-band p{margin-top:10px;color:var(--on-dark-2);font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* footer */
.site-footer{background:var(--ink);color:var(--on-dark-2);padding:72px 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand .fb-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800;letter-spacing:-.02em;margin-bottom:16px}
.footer-brand .brand-mark{width:32px;height:32px;font-size:16px;border-radius:10px}
.footer-brand p{font-size:14.5px;line-height:1.85;color:var(--on-dark-2);max-width:420px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul li{line-height:36px}
.footer-col ul li a{font-size:14.5px;color:var(--on-dark-2)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;line-height:32px;font-size:14.5px}
.footer-contact .fc-k{color:rgba(168,175,192,.72);flex:0 0 68px}
.qr-box{
  margin-top:16px;width:112px;height:112px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.22);background:rgba(255,255,255,.03);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;color:rgba(168,175,192,.8);padding:10px;line-height:1.6;
}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:rgba(168,175,192,.75);
}

/* sticky bar */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:rgba(11,13,20,.96);
  border-top:1px solid var(--line-dark);
  box-shadow:0 -10px 30px rgba(0,0,0,.32);
  opacity:0;transform:translateY(100%);pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
  padding-bottom:env(safe-area-inset-bottom);
}
.sticky-bar.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.sticky-bar.is-hidden{display:none}
.sticky-inner{display:flex;align-items:center;gap:18px;min-height:68px;padding-top:10px;padding-bottom:10px}
.sb-text{color:var(--on-dark);font-size:14.5px;flex:1 1 auto;min-width:0}
.sb-text b{color:#fff}
.sb-close{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  border:1px solid rgba(255,255,255,.2);background:transparent;color:var(--on-dark-2);
  font-size:18px;line-height:1;cursor:pointer;transition:all var(--t);
}
.sb-close:hover{color:#fff;border-color:var(--accent)}

/* about note */
.note{
  margin-top:26px;padding:18px 22px;border-left:3px solid var(--brand);
  background:#FFF7F2;border-radius:0 var(--r-img) var(--r-img) 0;
  font-size:14.5px;color:var(--text-2);line-height:1.85;
}
.note b{color:var(--text)}

/* responsive */
@media (max-width:1199px){
  .shell{padding:0 24px}
  .split{gap:40px}
}
@media (max-width:991px){
  .page-hero{padding:124px 0 54px}
  .sec{padding:72px 0}
  .split,.split.reverse{grid-template-columns:1fr;gap:30px}
  .split.reverse .split-media{order:0}
  .points{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px 28px}
}
@media (max-width:767px){
  .brand-text{font-size:15.5px}
  .page-hero .sub{font-size:15.5px}
  .hero-meta{gap:18px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:575px){
  .shell{padding:0 16px}
  .page-hero{padding:116px 0 48px}
  .sec{padding:56px 0}
  .points{grid-template-columns:1fr}
  .btn-brand,.btn-ghost,.btn-outline{padding:11px 20px;font-size:14.5px}
  .sticky-inner{gap:12px}
  .sb-text{font-size:13.5px;line-height:1.5}
  .cta-band{padding:28px 20px;gap:20px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --brand:#FF6B2C;
  --brand-soft:rgba(255,107,44,.06);
  --brand-line:rgba(255,107,44,.35);
  --accent:#23D3C0;
  --gold:#FFC94A;
  --dark:#0B0D14;
  --dark-2:#12141F;
  --bg:#F6F7FB;
  --card:#FFFFFF;
  --alt:#EEF1F8;
  --ink:#14161F;
  --muted:#5A6274;
  --line:#E6E8F0;
  --line-dark:rgba(255,255,255,.10);
  --on-dark:#F2F4F8;
  --on-dark-2:#A8AFC0;
  --ok:#2FBF71;
  --warn:#F0B429;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 2px 4px rgba(15,18,30,.04), 0 12px 28px rgba(15,18,30,.06);
  --sh-2:0 18px 40px rgba(15,18,30,.12);
  --sh-brand:0 10px 24px rgba(255,107,44,.32);
  --sec:104px;
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","Oswald","Arial Narrow","PingFang SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:inherit;}
p{margin:0 0 1em;color:var(--muted);}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.shell{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.sec{padding:var(--sec) 0;}
.sec-alt{background:var(--alt);}
.sec-dark{background:var(--dark);color:var(--on-dark);}

.sec-head{max-width:760px;margin-bottom:52px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;
  color:var(--brand);font-weight:700;
  text-transform:uppercase;
  margin-bottom:14px;
}
.sec-tag::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}
.sec-dark .sec-tag{color:var(--accent);}
.sec-dark .sec-tag::before{background:var(--accent);}
h2.sec-title{
  font-size:clamp(24px,3vw,36px);
  line-height:1.3;
  margin-bottom:16px;
  position:relative;
  padding-left:18px;
}
h2.sec-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:4px;background:var(--brand);
}
.sec-head.center h2.sec-title{padding-left:0;}
.sec-head.center h2.sec-title::before{display:none;}
.sec-head p{font-size:16px;margin-bottom:0;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(11,13,20,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(11,13,20,.94);
  box-shadow:0 10px 34px rgba(0,0,0,.42);
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .25s ease;}
.site-header.is-scrolled .header-inner{height:66px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--on-dark);}
.brand:hover{color:var(--on-dark);}
.brand-mark{
  width:36px;height:36px;flex-shrink:0;
  border-radius:11px;
  background:linear-gradient(140deg,var(--brand),#ff9152);
  color:#fff;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(255,107,44,.35);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;text-shadow:0 1px 2px rgba(0,0,0,.35);}
.nav-links{gap:6px;margin-left:auto;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 13px;
  font-size:15px;font-weight:500;
  color:rgba(242,244,248,.86);
  text-shadow:0 1px 2px rgba(0,0,0,.35);
  border-radius:var(--r-btn);
}
.nav-links a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:#fff;font-weight:700;}
.nav-links a.is-active::after{transform:scaleX(1);}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;margin-left:8px;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.05);
  color:var(--on-dark);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:.2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.12);border-color:var(--accent);color:var(--accent);}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;
  font-size:15px;font-weight:700;color:#fff;
  background:var(--brand);
  border:1px solid var(--brand);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-brand);
  cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, filter .2s ease, background .2s ease;
}
.btn-brand:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,107,44,.4);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;
  font-size:15px;font-weight:600;
  color:var(--on-dark);
  background:transparent;
  border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r-pill);
  cursor:pointer;
  transition:background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
}
.btn-ghost:hover{background:rgba(255,107,44,.12);border-color:var(--brand);color:#fff;transform:translateY(-2px);}
.btn-ghost-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;font-size:15px;font-weight:600;
  color:var(--ink);background:transparent;
  border:1px solid var(--line);border-radius:var(--r-pill);
  cursor:pointer;transition:.2s ease;
}
.btn-ghost-dark:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-2px);}

.search-panel{
  max-height:0;overflow:hidden;
  transition:max-height .28s ease;
  border-top:1px solid transparent;
}
.search-panel.is-open{max-height:96px;border-top-color:var(--line-dark);}
.search-form{display:flex;gap:10px;padding:14px 0;}
.search-form input{
  flex:1;height:44px;padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  color:var(--on-dark);font-size:15px;
  transition:.2s ease;
}
.search-form input::placeholder{color:rgba(168,175,192,.85);}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,107,44,.22);}
.search-form button{
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  border:none;background:var(--brand);color:#fff;font-weight:700;font-size:15px;cursor:pointer;
  transition:.2s ease;
}
.search-form button:hover{filter:brightness(1.06);}

.mobile-panel{
  display:none;
  background:rgba(11,13,20,.97);
  border-top:1px solid var(--line-dark);
  padding:10px 0 18px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:block;padding:13px 4px;
  color:var(--on-dark);font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.mobile-panel a.is-active{color:var(--brand);font-weight:700;}
.mobile-panel a:last-child{border-bottom:none;}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;
  padding:158px 0 78px;
  min-height:390px;
  background:#0B0D14 url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg, rgba(11,13,20,.93) 0%, rgba(11,13,20,.78) 52%, rgba(11,13,20,.70) 100%);
}
.page-hero .shell{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--on-dark-2);margin-bottom:22px;}
.crumb a{color:var(--on-dark-2);}
.crumb a:hover{color:var(--accent);}
.crumb span.sep{opacity:.5;}
.crumb .cur{color:var(--on-dark);font-weight:600;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;margin-bottom:20px;
  border-radius:var(--r-pill);
  border:1px solid rgba(35,211,192,.5);
  background:rgba(35,211,192,.09);
  color:var(--accent);
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.page-hero h1{
  font-size:clamp(30px,4.6vw,50px);
  line-height:1.2;font-weight:800;letter-spacing:-.02em;
  color:var(--on-dark);
  max-width:820px;
  margin-bottom:18px;
}
.page-hero .hero-sub{
  font-size:17px;line-height:1.8;
  color:var(--on-dark-2);
  max-width:660px;margin-bottom:0;
}

/* ============ 步骤时间线 ============ */
.timeline{position:relative;margin-top:8px;}
.tl-item{position:relative;padding:0 0 42px 84px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:26px;top:52px;bottom:-2px;width:2px;
  background:linear-gradient(180deg,var(--line),rgba(230,232,240,.35));
}
.tl-item:last-child::before{display:none;}
.tl-dot{
  position:absolute;left:0;top:4px;
  width:54px;height:54px;border-radius:50%;
  background:#fff;border:1px solid var(--line);
  box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:19px;font-weight:700;
  color:var(--brand);letter-spacing:.02em;
  transition:.25s ease;
}
.tl-item:hover .tl-dot{border-color:var(--brand);box-shadow:0 0 0 5px rgba(255,107,44,.1),var(--sh-1);}
.tl-item h3{font-size:20px;font-weight:700;margin-bottom:8px;color:var(--ink);}
.tl-item p{font-size:15.5px;max-width:660px;margin-bottom:10px;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-block;padding:4px 12px;
  font-size:12.5px;letter-spacing:.04em;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#fff;color:var(--muted);
}
.tag.tag-accent{border-color:rgba(35,211,192,.45);color:#12917f;background:rgba(35,211,192,.08);}

.split-visual{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.split-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}

/* ============ 数据条 ============ */
.stat-bar{
  background:var(--dark);
  border-radius:var(--r-card);
  border:1px solid var(--line-dark);
  display:grid;
  grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.stat-cell{
  padding:34px 24px;
  border-right:1px solid rgba(255,255,255,.08);
  text-align:center;
}
.stat-cell:last-child{border-right:none;}
.stat-num{
  font-family:var(--font-num);
  font-size:clamp(28px,3.4vw,42px);
  font-weight:700;line-height:1;
  color:var(--brand);
  margin-bottom:10px;
  letter-spacing:.01em;
}
.stat-cell:nth-child(2) .stat-num,
.stat-cell:nth-child(4) .stat-num{color:var(--accent);}
.stat-label{font-size:13px;color:var(--on-dark-2);letter-spacing:.04em;}

/* ============ 对比区 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease, transform .25s ease;
}
.compare-col:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.compare-head{display:flex;align-items:center;gap:12px;margin-bottom:22px;}
.compare-icon{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;
}
.compare-col.good .compare-icon{background:rgba(47,191,113,.12);color:var(--ok);}
.compare-col.need .compare-icon{background:rgba(240,180,41,.16);color:#b58209;}
.compare-col h3{font-size:19px;margin:0;}
.compare-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;font-size:15px;line-height:1.7;color:var(--muted);
  border-bottom:1px dashed var(--line);
}
.compare-list li:last-child{border-bottom:none;}
.compare-list li b{color:var(--ink);font-weight:700;}
.dot{
  width:20px;height:20px;border-radius:50%;flex-shrink:0;margin-top:4px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;
}
.good .dot{background:rgba(47,191,113,.14);color:var(--ok);}
.need .dot{background:rgba(240,180,41,.2);color:#a97706;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{
  background:transparent;
  border:none;
  border-bottom:1px solid var(--line);
}
.accordion-item:first-child{border-top:1px solid var(--line);}
.accordion-button{
  width:100%;
  background:transparent;
  border:none;
  padding:22px 46px 22px 18px;
  font-size:16px;font-weight:700;color:var(--ink);
  text-align:left;position:relative;
  border-radius:0;
  transition:color .2s ease, padding-left .22s ease, background .2s ease;
  box-shadow:none;
}
.accordion-button:hover{color:var(--brand);}
.accordion-button:focus{outline:none;box-shadow:none;}
.accordion-button::after{display:none;}
.accordion-button::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  border-radius:3px;background:var(--brand);
  transform:scaleY(0);transform-origin:center;
  transition:transform .22s ease;
}
.accordion-button:not(.collapsed){color:var(--brand);padding-left:22px;}
.accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.acc-icon{
  position:absolute;right:14px;top:50%;transform:translateY(-50%);
  width:22px;height:22px;
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);
}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform .22s ease, opacity .22s ease;
}
.acc-icon::before{width:14px;height:2px;}
.acc-icon::after{width:2px;height:14px;}
.accordion-button:not(.collapsed) .acc-icon{color:var(--brand);}
.accordion-button:not(.collapsed) .acc-icon::after{transform:scaleY(0);}
.accordion-body{
  padding:0 46px 24px 22px;
  font-size:15px;line-height:1.8;color:var(--muted);
}

/* ============ CTA 区块 ============ */
.cta-block{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  background:var(--dark);
  border:1px solid var(--line-dark);
  padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-block::after{
  content:"";position:absolute;right:-60px;top:-60px;
  width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,44,.22),transparent 68%);
}
.cta-block > *{position:relative;z-index:1;}
.cta-block h2{font-size:clamp(22px,2.6vw,30px);color:var(--on-dark);margin-bottom:12px;padding:0;}
.cta-block h2::before{display:none;}
.cta-block p{color:var(--on-dark-2);margin-bottom:0;max-width:560px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0;}

/* ============ 固定转化条 ============ */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:rgba(11,13,20,.96);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-top:1px solid rgba(255,255,255,.12);
  padding:12px 0 calc(12px + env(safe-area-inset-bottom));
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s;
}
.bottom-bar.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.bottom-inner{display:flex;align-items:center;gap:18px;}
.bottom-text{color:var(--on-dark-2);font-size:14px;margin:0;flex:1;min-width:0;}
.bottom-text strong{color:var(--on-dark);font-weight:700;}
.bottom-close{
  width:34px;height:34px;flex-shrink:0;
  border-radius:50%;border:1px solid rgba(255,255,255,.18);
  background:transparent;color:var(--on-dark-2);
  cursor:pointer;font-size:16px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:.2s ease;
}
.bottom-close:hover{color:#fff;border-color:var(--brand);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--on-dark-2);padding:78px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:52px;
}
.fb-logo{display:flex;align-items:center;gap:11px;margin-bottom:18px;color:var(--on-dark);font-size:17px;font-weight:700;}
.footer-brand p{font-size:14.5px;line-height:1.85;margin-bottom:0;color:var(--on-dark-2);max-width:380px;}
.footer-col h4{
  font-size:15px;font-weight:700;color:var(--on-dark);
  margin-bottom:18px;letter-spacing:.02em;
}
.footer-col ul li{line-height:1;}
.footer-col ul li a{
  display:inline-block;padding:8px 0;
  font-size:14.5px;color:var(--on-dark-2);
  transition:color .2s ease, transform .2s ease;
}
.footer-col ul li a:hover{color:var(--accent);transform:translateX(3px);}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;padding:8px 0;line-height:1.7;}
.fc-k{color:rgba(168,175,192,.7);flex-shrink:0;}
.qr-box{
  margin-top:16px;
  width:112px;height:112px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.22);
  display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12.5px;line-height:1.6;
  color:rgba(168,175,192,.8);
  padding:12px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:rgba(168,175,192,.72);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .shell{padding:0 24px;}
  .compare-grid{gap:20px;}
}
@media (max-width:991.98px){
  :root{--sec:72px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(2){border-right:none;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid rgba(255,255,255,.08);}
  .cta-block{flex-direction:column;align-items:flex-start;padding:44px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .footer-brand{grid-column:1 / -1;}
  .page-hero{padding:140px 0 64px;min-height:340px;}
}
@media (max-width:767.98px){
  :root{--sec:56px;}
  .shell{padding:0 16px;}
  .compare-grid{grid-template-columns:1fr;}
  .tl-item{padding-left:64px;padding-bottom:34px;}
  .tl-dot{width:44px;height:44px;font-size:16px;}
  .tl-item::before{left:21px;top:46px;}
  .page-hero{padding:128px 0 56px;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .page-hero .hero-sub{font-size:15.5px;}
  .brand-text{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .bottom-inner{gap:12px;}
  .bottom-text{font-size:13px;}
  .bottom-text strong{display:block;}
  .cta-block{padding:34px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost-dark{flex:1;}
}
@media (max-width:575.98px){
  .stat-bar{grid-template-columns:1fr;}
  .stat-cell{border-right:none;border-bottom:1px solid rgba(255,255,255,.08);padding:26px 18px;}
  .stat-cell:last-child{border-bottom:none;}
  .accordion-button{padding:18px 42px 18px 16px;font-size:15px;}
  .accordion-body{padding:0 20px 20px 16px;}
  .footer-bottom{flex-direction:column;}
  .brand-text{max-width:150px;overflow:hidden;text-overflow:ellipsis;}
}

/* roulang page: category3 */
:root{
  --brand:#FF6B2C;
  --brand-deep:#E85A1D;
  --brand-soft:rgba(255,107,44,.10);
  --brand-2:#23D3C0;
  --brand-2-deep:#0F8A7C;
  --gold:#FFC94A;
  --ink:#0B0D14;
  --ink-2:#12141F;
  --bg:#F6F7FB;
  --bg-alt:#EEF1F8;
  --card:#FFFFFF;
  --tx:#14161F;
  --tx-2:#5A6274;
  --line:#E6E8F0;
  --dk-tx:#F2F4F8;
  --dk-tx2:#A8AFC0;
  --dk-line:rgba(255,255,255,.10);
  --ok:#2FBF71;
  --warn:#F0B429;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 2px 4px rgba(15,18,30,.04),0 12px 28px rgba(15,18,30,.06);
  --sh-2:0 18px 40px rgba(15,18,30,.12);
  --sh-brand:0 10px 24px rgba(255,107,44,.32);
  --shell:1200px;
  --pad:16px;
  --sec:56px;
  --font:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Oswald","Barlow Condensed","DIN Alternate","Helvetica Neue",Arial,sans-serif;
  --bs-primary:#FF6B2C;
  --bs-body-font-family:var(--font);
  --bs-border-radius:10px;
  --bs-card-border-color:var(--line);
  --bs-body-color:var(--tx);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-deep);
}
@media (min-width:768px){:root{--pad:24px;--sec:72px}}
@media (min-width:992px){:root{--pad:32px;--sec:96px}}
@media (min-width:1400px){:root{--shell:1280px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--tx);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--pad)}
.section{padding:var(--sec) 0}
.section-alt{background:var(--bg-alt)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(11,13,20,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-solid{background:rgba(11,13,20,.94);box-shadow:0 12px 32px rgba(0,0,0,.38)}
.header-inner{display:flex;align-items:center;gap:14px;height:72px;transition:height .25s ease}
.site-header.is-solid .header-inner{height:66px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--dk-tx);flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),#FF9A3C);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:17px;
  box-shadow:var(--sh-brand);
}
.brand-text{font-weight:800;font-size:16px;letter-spacing:-.02em;white-space:nowrap;text-shadow:0 1px 2px rgba(0,0,0,.4)}
.nav-links{flex:1;justify-content:center;align-items:center;gap:2px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 13px;border-radius:var(--r-btn);
  font-size:15px;color:rgba(242,244,248,.82);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.is-active{color:#fff;font-weight:600}
.nav-links a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.search-wrap{position:relative}
.search-toggle{
  width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:var(--dk-tx);display:grid;place-items:center;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.search-toggle:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.3)}
.search-pop{
  position:absolute;top:calc(100% + 12px);right:0;width:288px;padding:12px;display:none;
  background:rgba(11,13,20,.96);border:1px solid var(--dk-line);border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.search-pop.is-open{display:block}
.search-pop input{
  width:100%;height:44px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);
  color:var(--dk-tx);font-size:14px;
}
.search-pop input::placeholder{color:rgba(168,175,192,.8)}
.search-pop input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(255,107,44,.25)}
.menu-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);display:grid;place-items:center;cursor:pointer;
}
.menu-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--dk-tx)}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--dk-tx);
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border:none;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-weight:700;font-size:15px;letter-spacing:.02em;
  box-shadow:var(--sh-brand);cursor:pointer;
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,107,44,.42);color:#fff}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);background:transparent;color:var(--dk-tx);
  font-weight:600;font-size:15px;
  transition:border-color .2s ease,background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{border-color:var(--brand);background:rgba(255,107,44,.12);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-nav{padding:0 18px;height:42px;font-size:14px}
.mobile-panel{
  display:none;background:rgba(11,13,20,.97);border-bottom:1px solid var(--dk-line);
  padding:10px 0 22px;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:block;padding:13px 4px;font-size:15px;color:var(--dk-tx);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.mobile-panel a.is-active{color:var(--brand);font-weight:600}
.mobile-panel .mp-note{padding-top:14px;font-size:12.5px;color:var(--dk-tx2);letter-spacing:.04em}
@media (min-width:992px){.mobile-panel,.mobile-panel.is-open{display:none}}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:130px 0 56px;
  min-height:360px;
  color:var(--dk-tx);
  background-image:linear-gradient(180deg,rgba(11,13,20,.76),rgba(11,13,20,.93)),url('/assets/images/backpic/back-2.png');
  background-position:center,center 30%;
  background-size:cover,cover;
  background-repeat:no-repeat,no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.6;
}
.page-hero .shell{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dk-tx2);margin-bottom:20px}
.crumb a{color:var(--dk-tx2)}
.crumb a:hover{color:var(--brand-2)}
.crumb .sep{opacity:.45}
.crumb .cur{color:var(--dk-tx)}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(35,211,192,.5);background:rgba(35,211,192,.08);
  color:var(--brand-2);font-size:12.5px;letter-spacing:.06em;
}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;line-height:1.2;letter-spacing:-.02em;
  margin-bottom:14px;text-shadow:0 2px 12px rgba(0,0,0,.35);
}
.page-hero h1 .h1-brand{
  display:block;margin-top:12px;
  font-size:clamp(13px,1.5vw,16px);font-weight:600;letter-spacing:.08em;
  color:var(--brand-2);
}
.hero-sub{max-width:760px;font-size:16.5px;line-height:1.8;color:var(--dk-tx2)}

/* ---------- section head ---------- */
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{
  position:relative;padding-left:18px;margin-bottom:14px;
  font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand);
}
.sec-head p{margin:0;color:var(--tx-2);font-size:15.5px;max-width:720px}

/* ---------- table ---------- */
.table-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow-x:auto;-webkit-overflow-scrolling:touch;
}
table.cmp{width:100%;min-width:780px;border-collapse:collapse;font-size:15px}
.cmp thead th{
  background:var(--ink);color:var(--dk-tx);text-align:left;
  padding:15px 22px;font-size:13px;font-weight:700;letter-spacing:.06em;white-space:nowrap;
}
.cmp tbody td{padding:17px 22px;border-bottom:1px solid var(--line);color:var(--tx-2);vertical-align:top}
.cmp tbody tr:nth-child(even){background:#FAFBFE}
.cmp tbody tr:hover{background:#FFF5EF}
.cmp tbody tr:last-child td{border-bottom:none}
.cmp td strong{display:block;color:var(--tx);font-weight:700;font-size:15.5px;margin-bottom:2px}
.cmp .v-num{font-family:var(--font-num);font-size:18px;font-weight:600;color:var(--brand);letter-spacing:.02em;font-variant-numeric:tabular-nums}
.cmp .v-size{font-family:var(--font-num);font-size:16px;color:var(--tx);font-variant-numeric:tabular-nums}
.table-note{margin-top:16px;font-size:13.5px;color:var(--tx-2)}

/* ---------- card grid ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}
.pick-card{
  display:flex;flex-direction:column;gap:12px;height:100%;
  padding:24px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.pick-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.35)}
.pick-icon{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);border:1px solid rgba(255,107,44,.22);
  color:var(--brand);font-family:var(--font-num);font-size:18px;font-weight:700;
}
.pick-card h3{font-size:19px;font-weight:700;margin-top:2px}
.pick-card p{color:var(--tx-2);font-size:14.5px;line-height:1.8;margin:0}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}
.tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(35,211,192,.45);background:rgba(35,211,192,.10);
  color:var(--brand-2-deep);font-size:12.5px;letter-spacing:.04em;
}
.tag-warn{border-color:rgba(240,180,41,.5);background:rgba(240,180,41,.12);color:#9A6A08}
.tag-brand{border-color:rgba(255,107,44,.4);background:rgba(255,107,44,.10);color:var(--brand-deep)}

/* ---------- split ---------- */
.split{display:grid;gap:30px;grid-template-columns:1fr;align-items:center}
@media (min-width:992px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split .media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.steps{counter-reset:step;display:flex;flex-direction:column;gap:20px;margin-top:24px}
.steps li{position:relative;padding-left:58px;color:var(--tx-2);font-size:15px;line-height:1.8}
.steps li::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;left:0;top:0;
  font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--brand);letter-spacing:.02em;
}
.steps li strong{display:block;color:var(--tx);font-size:16.5px;margin-bottom:4px}
.split h2{position:relative;padding-left:18px;font-size:clamp(24px,3vw,34px);font-weight:700;margin-bottom:14px}
.split h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand)}
.split .lead{color:var(--tx-2);font-size:15.5px}

/* ---------- faq ---------- */
.faq-box{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:8px 24px;
}
.faq .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line)}
.faq .accordion-item:last-child{border-bottom:none}
.faq .accordion-button{
  position:relative;background:transparent;box-shadow:none;border-radius:0;
  padding:22px 46px 22px 0;font-size:16px;font-weight:700;color:var(--tx);
  transition:color .2s ease,padding .2s ease;
}
.faq .accordion-button:not(.collapsed){color:var(--brand);padding-left:16px;background:transparent;box-shadow:none}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:2px}
.faq .accordion-button::after{display:none}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:2px;
  background:var(--brand);opacity:0;transition:opacity .2s ease;
}
.faq .accordion-button:not(.collapsed)::before{opacity:1}
.acc-toggle{position:absolute;right:12px;top:50%;width:14px;height:14px;transform:translateY(-50%)}
.acc-toggle::before,.acc-toggle::after{
  content:"";position:absolute;background:var(--tx-2);border-radius:2px;
  transition:opacity .2s ease,transform .2s ease,background .2s ease;
}
.acc-toggle::before{left:0;top:6px;width:14px;height:2px}
.acc-toggle::after{left:6px;top:0;width:2px;height:14px}
.faq .accordion-button:not(.collapsed) .acc-toggle::before{background:var(--brand)}
.faq .accordion-button:not(.collapsed) .acc-toggle::after{opacity:0;transform:rotate(90deg)}
.faq .accordion-body{padding:0 46px 24px 0;color:var(--tx-2);font-size:14.5px;line-height:1.85}
.faq .accordion-button:not(.collapsed) + .accordion-collapse .accordion-body{padding-left:16px}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 var(--sec)}
.cta-inner{
  position:relative;overflow:hidden;
  display:grid;gap:26px;align-items:center;
  padding:40px 26px;border-radius:var(--r-card);
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(120deg,#0B0D14 0%,#161a26 58%,#2A1A12 100%);
  box-shadow:var(--sh-1);
}
.cta-inner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:20px 20px;
}
@media (min-width:992px){.cta-inner{grid-template-columns:1.5fr auto;padding:52px 48px;gap:40px}}
.cta-inner > *{position:relative;z-index:2}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;color:var(--dk-tx);margin-bottom:12px}
.cta-inner p{margin:0;color:var(--dk-tx2);font-size:15px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-meta{margin-top:16px;font-size:13px;color:rgba(168,175,192,.9);letter-spacing:.02em}
.cta-meta span{color:var(--brand-2);font-family:var(--font-num);font-size:15px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--dk-tx2);padding:64px 0 0;border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.8fr 1fr 1fr 1.2fr;gap:40px}}
.fb-logo{display:inline-flex;align-items:center;gap:10px;color:var(--dk-tx);font-weight:800;font-size:16px;margin-bottom:14px}
.footer-brand p{font-size:14.5px;line-height:1.85;color:var(--dk-tx2);max-width:380px;margin:0}
.footer-col h4{color:var(--dk-tx);font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col ul li a{display:inline-block;line-height:36px;font-size:14.5px;color:var(--dk-tx2)}
.footer-col ul li a:hover{color:var(--brand-2)}
.footer-contact li{display:flex;gap:10px;line-height:36px;font-size:14.5px}
.footer-contact .fc-k{color:rgba(168,175,192,.68);min-width:64px}
.qr-box{
  margin-top:14px;width:104px;height:104px;padding:8px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.2);display:grid;place-items:center;text-align:center;
  font-size:12px;line-height:1.5;color:rgba(168,175,192,.75);
}
.footer-bottom{
  margin-top:48px;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:rgba(168,175,192,.75);
}

@media (max-width:575px){
  .brand-text{font-size:14px;letter-spacing:-.03em}
  .page-hero{padding:112px 0 44px;min-height:320px}
  .hero-sub{font-size:15.5px}
  .btn-brand,.btn-ghost{height:44px;padding:0 20px;font-size:14.5px}
  .pick-card{padding:20px}
  .faq-box{padding:6px 18px}
  .footer-bottom{flex-direction:column;gap:8px}
}