/* roulang page: index */
:root{
  --ink:#0B1F1C;
  --ink-soft:#14302B;
  --orange:#FF6B2C;
  --orange-dark:#E85A1F;
  --mint:#5CE1B8;
  --bg:#F4F2ED;
  --card:#FFFFFF;
  --soft:#EDE9E2;
  --text:#131313;
  --text-2:#5A5F5C;
  --text-3:#8A8F8C;
  --border:#DCD7CE;
  --radius-xl:22px;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 8px 30px rgba(11,31,28,.06);
  --shadow-lg:0 14px 40px rgba(11,31,28,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --bs-primary:#FF6B2C;
  --bs-primary-rgb:255,107,44;
  --bs-body-bg:#F4F2ED;
  --bs-body-color:#131313;
  --bs-border-color:#DCD7CE;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;line-height:1.2;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--orange);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
@media(min-width:1400px){.container{max-width:1320px;}}
@media(max-width:575.98px){.container{padding-left:16px;padding-right:16px;}}
section{scroll-margin-top:140px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-title{margin-bottom:14px;font-size:clamp(1.6rem,3vw,2.4rem);}
.section-lead{max-width:720px;color:var(--text-2);font-size:1rem;}
.section-head{margin-bottom:44px;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;font-weight:700;letter-spacing:.08em;
  color:var(--orange);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);display:block;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:var(--card);}
.nav-primary{border-bottom:1px solid var(--border);background:var(--card);}
.nav-primary-inner{display:flex;align-items:center;gap:24px;min-height:70px;padding-top:8px;padding-bottom:8px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--ink);position:relative;flex-shrink:0;
  box-shadow:inset 0 0 0 1px rgba(244,242,237,.12);
}
.brand-mark::before{
  content:"";position:absolute;inset:9px 10px 9px 9px;background:var(--orange);
  clip-path:polygon(0 0,100% 0,100% 34%,42% 34%,42% 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:1.1875rem;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.brand-text em{font-style:normal;font-size:.75rem;color:var(--text-3);letter-spacing:.02em;}
.nav-search{display:flex;flex:1;max-width:420px;margin-left:auto;}
.nav-search input{
  flex:1;height:46px;border:1px solid var(--border);border-right:none;background:var(--card);
  border-radius:var(--radius-sm) 0 0 var(--radius-sm);padding:0 16px;font-size:.9375rem;color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,107,44,.12);}
.nav-search button{
  height:46px;padding:0 20px;border:none;background:var(--orange);color:var(--ink);
  font-weight:700;font-size:.9375rem;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  transition:background .2s var(--ease);cursor:pointer;
}
.nav-search button:hover{background:var(--orange-dark);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-sm);font-weight:700;font-size:.9375rem;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-brand.primary{background:var(--orange);color:var(--ink);}
.btn-brand.primary:hover{background:var(--orange-dark);color:var(--ink);transform:translateY(-1px);}
.btn-brand.ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-brand.ghost:hover{background:var(--ink);color:var(--bg);}
.btn-brand.light-ghost{background:transparent;border-color:rgba(244,242,237,.65);color:var(--bg);}
.btn-brand.light-ghost:hover{background:var(--bg);color:var(--ink);}
.btn-brand.lg{padding:14px 28px;font-size:1rem;}
.btn-brand:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,107,44,.28);}
.nav-search-toggle{display:none;width:44px;height:44px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--card);color:var(--ink);font-size:1rem;}
.nav-channels{
  background:var(--card);border-bottom:1px solid var(--border);
  position:relative;
}
.nav-channels-inner{
  display:flex;gap:10px;align-items:center;min-height:50px;
  overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none;
}
.nav-channels-inner::-webkit-scrollbar{display:none;}
.channel{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  padding:8px 16px;border-radius:999px;font-size:.9375rem;font-weight:600;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.channel:hover{background:var(--soft);color:var(--ink);}
.channel.active{background:var(--ink);color:var(--bg);}
.channel .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);display:none;}
.channel.active .dot{display:block;}
.site-header.scrolled .nav-primary{box-shadow:0 6px 24px rgba(11,31,28,.08);}
.site-header.scrolled .nav-channels{box-shadow:0 10px 24px rgba(11,31,28,.06);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(105deg,rgba(11,31,28,.94) 0%,rgba(11,31,28,.82) 52%,rgba(11,31,28,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:var(--bg);
  padding:88px 0 96px;
}
.hero::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(92,225,184,.22),transparent 68%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:start;}
.hero h1{
  color:#fff;font-size:clamp(2.2rem,4.6vw,3.6rem);line-height:1.1;letter-spacing:-.02em;
  text-wrap:balance;margin-bottom:22px;
}
.hero h1 .hl{color:var(--mint);}
.hero-sub{color:rgba(244,242,237,.82);font-size:1.0625rem;line-height:1.85;max-width:600px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:0;align-items:center;}
.hero-tags li{
  font-size:.875rem;color:rgba(244,242,237,.78);padding:0 16px;position:relative;
}
.hero-tags li:first-child{padding-left:0;}
.hero-tags li+li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:rgba(244,242,237,.28);
}
.login-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-xl);
  padding:28px;box-shadow:var(--shadow-lg);color:var(--text);position:relative;overflow:hidden;
}
.login-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;}
.login-card-head h2{font-size:1.25rem;}
.login-card-head span{font-size:.8125rem;color:var(--text-3);}
.login-field{margin-bottom:16px;}
.login-field label{display:block;font-size:.875rem;color:var(--text-2);margin-bottom:8px;font-weight:600;}
.login-field input{
  width:100%;height:48px;border:1px solid var(--border);border-radius:var(--radius-sm);
  background:var(--card);padding:0 14px;font-size:.9375rem;color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.login-field input::placeholder{color:var(--text-3);}
.login-field input:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,107,44,.12);}
.login-card .btn-brand{width:100%;}
.login-card-foot{margin-top:16px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.875rem;color:var(--text-2);}
.login-card-foot a{border-bottom:1px solid rgba(11,31,28,.25);}
.login-card-foot a:hover{border-bottom-color:var(--orange);}
.login-card-badge{
  position:absolute;top:0;right:0;background:var(--ink);color:var(--bg);
  font-size:.75rem;font-weight:700;padding:6px 14px;border-radius:0 var(--radius-xl) 0 var(--radius-md);
}
.hero-stats{
  margin-top:56px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  border-top:1px solid rgba(244,242,237,.18);padding-top:28px;
}
.hero-stats .stat b{display:block;font-family:Inter,"DIN Alternate",system-ui,sans-serif;font-size:2rem;font-weight:800;color:var(--mint);line-height:1;}
.hero-stats .stat span{display:block;margin-top:8px;font-size:.875rem;color:rgba(244,242,237,.72);}

/* ---------- 通用卡片/标签 ---------- */
.card-soft{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card-soft:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFC8BC;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:.75rem;font-weight:700;letter-spacing:.02em;
}
.tag-orange{background:var(--orange);color:var(--ink);}
.tag-mint{background:rgba(92,225,184,.22);color:#0F5C48;}
.tag-soft{background:var(--soft);color:var(--text-2);}
.tag-ink{background:var(--ink);color:var(--bg);}
.meta{font-size:.8125rem;color:var(--text-3);}

/* ---------- 权益对比表 ---------- */
.compare-wrap{
  border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--card);
  overflow-x:auto;box-shadow:var(--shadow-sm);
}
table.compare-table{width:100%;border-collapse:separate;border-spacing:0;min-width:760px;}
.compare-table th,.compare-table td{padding:18px 20px;text-align:left;font-size:.9375rem;border-bottom:1px solid var(--border);}
.compare-table thead th{background:var(--ink);color:var(--bg);font-weight:700;font-size:.9375rem;border-bottom:none;}
.compare-table thead th:first-child{border-radius:var(--radius-lg) 0 0 0;}
.compare-table thead th:last-child{border-radius:0 var(--radius-lg) 0 0;}
.compare-table tbody th{
  position:sticky;left:0;background:var(--card);font-weight:700;color:var(--text);z-index:2;
  border-right:1px solid var(--border);min-width:170px;
}
.compare-table tbody tr:hover td,.compare-table tbody tr:hover th{background:#FAF8F4;}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table .col-hot{background:rgba(255,107,44,.06);}
.compare-table td .yes{color:#0F5C48;font-weight:700;}
.compare-table td .no{color:var(--text-3);}
.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--mint);margin-right:8px;vertical-align:middle;}
.compare-mobile{display:none;}
.compare-note{margin-top:18px;font-size:.875rem;color:var(--text-2);}

/* ---------- 等级 ---------- */
.levels-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start;}
.level-badge-panel{
  background:var(--ink);color:var(--bg);border-radius:var(--radius-xl);padding:36px 32px;
  position:relative;overflow:hidden;
}
.level-badge-panel .big-number{
  font-family:Inter,"DIN Alternate",system-ui,sans-serif;font-size:clamp(3.4rem,6vw,4.4rem);
  font-weight:800;color:var(--mint);line-height:1;
}
.level-badge-panel h3{color:#fff;margin:18px 0 12px;font-size:1.375rem;}
.level-badge-panel p{color:rgba(244,242,237,.76);font-size:.9375rem;}
.level-badge-panel .badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.progress-shell{height:8px;border-radius:999px;background:rgba(244,242,237,.18);overflow:hidden;margin-top:24px;}
.progress-shell i{display:block;height:100%;background:var(--mint);border-radius:999px;}
.level-timeline{position:relative;padding-left:28px;}
.level-timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:var(--border);}
.level-item{
  position:relative;padding:20px 22px;border-radius:var(--radius-md);background:var(--card);
  border:1px solid var(--border);border-left:3px solid transparent;margin-bottom:16px;
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.level-item::before{
  content:"";position:absolute;left:-29px;top:30px;width:12px;height:12px;border-radius:50%;
  background:var(--card);border:2px solid var(--border);
}
.level-item:hover{border-left-color:var(--orange);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.level-item:hover::before{border-color:var(--orange);background:var(--orange);}
.level-item h3{font-size:1.125rem;margin-bottom:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.level-item p{color:var(--text-2);font-size:.9375rem;margin-bottom:12px;}
.level-item .level-meta{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 内容预览 ---------- */
.preview-scroll{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,320px);gap:24px;
  overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory;
}
.preview-scroll::-webkit-scrollbar{height:8px;}
.preview-scroll::-webkit-scrollbar-thumb{background:#CFC8BC;border-radius:999px;}
.preview-card{
  scroll-snap-align:start;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.preview-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.preview-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--soft);}
.preview-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.preview-card:hover .preview-cover img{transform:scale(1.03);}
.preview-cover.locked img{filter:saturate(.35) brightness(.9);}
.preview-cover .lock-tag{position:absolute;top:12px;right:12px;}
.preview-body{padding:20px 22px 24px;}
.preview-body h3{font-size:1.0625rem;margin:12px 0 10px;line-height:1.45;}
.preview-body p{font-size:.875rem;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.preview-body .meta{margin-top:14px;display:flex;justify-content:space-between;gap:10px;align-items:center;}

/* ---------- 最新信息 ---------- */
.news-main-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);height:100%;transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.news-main-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.news-main-link{display:block;height:100%;}
.news-main-cover{aspect-ratio:16/9;overflow:hidden;background:var(--soft);}
.news-main-cover img{width:100%;height:100%;object-fit:cover;}
.news-main-body{padding:24px 26px 28px;}
.news-main-body h3{font-size:1.25rem;margin:14px 0 12px;}
.news-main-body p{color:var(--text-2);font-size:.9375rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-side{display:flex;flex-direction:column;gap:12px;height:100%;}
.news-side-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:16px 18px;display:flex;flex-direction:column;gap:8px;flex:1;
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.news-side-item:hover{border-color:var(--orange);transform:translateX(3px);box-shadow:var(--shadow-sm);}
.news-side-item h3{font-size:.9875rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-side-item .row-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;}
.news-empty{
  min-height:280px;border:1px dashed var(--border);border-radius:var(--radius-lg);background:var(--card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px;padding:32px;
}
.news-empty i{font-size:1.75rem;color:var(--text-3);}
.news-empty h3{font-size:1.125rem;}
.news-empty p{color:var(--text-2);font-size:.9375rem;}

/* ---------- 评价 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.quote-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px;
  display:flex;flex-direction:column;gap:16px;box-shadow:var(--shadow-sm);
}
.quote-card .stars{color:var(--orange);letter-spacing:2px;font-size:.875rem;}
.quote-card p{font-size:.9375rem;color:var(--text-2);}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:auto;}
.quote-who span{width:38px;height:38px;border-radius:50%;background:var(--soft);color:var(--ink);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.875rem;}
.quote-who b{display:block;font-size:.9375rem;}
.quote-who em{font-style:normal;font-size:.8125rem;color:var(--text-3);}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--border);
}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);font-weight:600;font-size:1.0625rem;
  padding:22px 0 22px 18px;box-shadow:none;position:relative;border-radius:0;
}
.faq-accordion .accordion-button::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:999px;background:transparent;
  transition:background .2s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--text);font-weight:700;}
.faq-accordion .accordion-button:not(.collapsed)::before{background:var(--orange);}
.faq-accordion .accordion-button:focus{box-shadow:none;}
.faq-accordion .accordion-button::after{
  width:16px;height:16px;background-size:16px;transition:transform .22s var(--ease);filter:none;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.faq-accordion .accordion-body{padding:0 0 22px;color:var(--text-2);font-size:.9875rem;line-height:1.8;max-width:720px;}

/* ---------- CTA ---------- */
.cta-member{
  position:relative;color:#fff;padding:88px 0;
  background-image:linear-gradient(rgba(11,31,28,.84),rgba(11,31,28,.88)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cta-member h2{color:#fff;font-size:clamp(1.7rem,3.2vw,2.5rem);margin-bottom:16px;}
.cta-member p{color:rgba(244,242,237,.82);max-width:660px;margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;}
.cta-tags span{
  border:1px solid rgba(244,242,237,.28);border-radius:999px;padding:6px 16px;
  font-size:.875rem;color:rgba(244,242,237,.85);
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--bg);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.6fr));gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{background:var(--bg);}
.footer-brand .brand-mark::before{background:var(--orange);}
.footer-brand strong{font-size:1.25rem;color:#fff;font-weight:800;}
.footer-brand em{display:block;font-style:normal;font-size:.8125rem;color:rgba(244,242,237,.6);}
.site-footer p{color:rgba(244,242,237,.7);font-size:.9375rem;}
.site-footer h3{color:#fff;font-size:.9375rem;font-weight:700;margin-bottom:18px;letter-spacing:.02em;}
.site-footer li{margin-bottom:10px;font-size:.9375rem;}
.site-footer a{color:rgba(244,242,237,.72);}
.site-footer a:hover{color:var(--orange);}
.footer-bottom{
  border-top:1px solid rgba(244,242,237,.14);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:.8125rem;color:rgba(244,242,237,.6);
}
.footer-bottom a{color:rgba(244,242,237,.6);}
.footer-bottom a:hover{color:var(--orange);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(244,242,237,.28);
  border-radius:999px;padding:7px 16px;color:rgba(244,242,237,.8);
}
.to-top:hover{background:var(--orange);border-color:var(--orange);color:var(--ink);}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);animation:revealIn .6s var(--ease) forwards;}
@keyframes revealIn{to{opacity:1;transform:translateY(0);}}
.d1{animation-delay:.06s}.d2{animation-delay:.12s}.d3{animation-delay:.18s}.d4{animation-delay:.24s}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media(max-width:1199.98px){
  .hero{padding:72px 0 80px;}
  .hero-grid{gap:36px;}
}
@media(max-width:991.98px){
  .nav-search{display:none;}
  .nav-search-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-actions{margin-left:0;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .levels-grid{grid-template-columns:1fr;gap:32px;}
  .quote-grid{grid-template-columns:1fr;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .compare-table{min-width:0;}
  .compare-wrap{display:none;}
  .compare-mobile{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media(max-width:767.98px){
  .brand-text em{display:none;}
  .hero{padding:56px 0 64px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .hero-stats .stat b{font-size:1.6rem;}
  .preview-scroll{grid-auto-columns:minmax(250px,80%);}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:32px;}
  .level-timeline{padding-left:20px;}
  .level-item::before{left:-21px;}
  .cta-member{padding:64px 0;}
  .faq-accordion .accordion-button{font-size:.95rem;padding:18px 0 18px 14px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .btn-brand{width:100%;}
  .hero-cta .btn-brand{width:100%;}
  .nav-actions .btn-brand{width:auto;}
}
@media(max-width:519.98px){
  .nav-primary-inner{gap:12px;}
  .brand-text strong{font-size:1rem;}
  .brand-mark{width:34px;height:34px;}
  .hero h1{font-size:1.85rem;}
  .login-card{padding:20px;}
  .hero-stats{grid-template-columns:1fr;border-top:none;padding-top:16px;margin-top:36px;}
}

/* roulang page: article */
:root{
  --ink:#0B1F1C;
  --ink-soft:#14302B;
  --orange:#FF6B2C;
  --orange-dark:#E85A1F;
  --mint:#5CE1B8;
  --bg:#F4F2ED;
  --card:#FFFFFF;
  --soft:#EDE9E2;
  --text:#131313;
  --muted:#5A5F5C;
  --weak:#8A8F8C;
  --line:#DCD7CE;
  --danger:#D64545;
  --r-card:18px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 8px 30px rgba(11,31,28,.06);
  --sh-hover:0 14px 40px rgba(11,31,28,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --t:220ms;
  --bs-primary:#FF6B2C;
  --bs-body-bg:#F4F2ED;
  --bs-body-color:#131313;
  --bs-border-color:#DCD7CE;
  --bs-link-color:#0B1F1C;
  --bs-link-hover-color:#FF6B2C;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color var(--t) var(--ease)}
a:hover{color:var(--orange)}
button,input{font-family:inherit}
h1,h2,h3,h4{font-weight:800;color:var(--ink);margin:0;letter-spacing:-.01em}
p{margin:0 0 1.1em}
ul{list-style:none;margin:0;padding:0}
:focus-visible{outline:3px solid rgba(255,107,44,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1320px}}

/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:1030;background:var(--card);border-bottom:1px solid var(--line);transition:box-shadow var(--t) var(--ease)}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(11,31,28,.09)}
.nav-primary{background:var(--card)}
.nav-primary-inner{display:flex;align-items:center;gap:24px;min-height:68px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--ink);position:relative;flex:0 0 auto;overflow:hidden}
.brand-mark::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,var(--orange) 0 52%,transparent 52%)}
.brand-mark::after{content:"";position:absolute;right:6px;bottom:6px;width:10px;height:10px;border-radius:3px;background:var(--mint)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:1.15rem;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.75rem;color:var(--muted);letter-spacing:.02em}
.nav-search{flex:1 1 auto;max-width:460px;display:flex;position:relative;align-items:center}
.nav-search input{
  width:100%;height:46px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;padding:0 52px 0 16px;font-size:.9375rem;color:var(--text);
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.nav-search input::placeholder{color:var(--weak)}
.nav-search input:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,107,44,.12)}
.nav-search button{
  position:absolute;right:5px;top:5px;width:36px;height:36px;border:0;border-radius:8px;
  background:var(--orange);color:var(--ink);font-weight:700;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:background var(--t) var(--ease)
}
.nav-search button:hover{background:var(--orange-dark)}
.nav-search-toggle{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:.9375rem;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease)
}
.btn-brand.primary{background:var(--orange);color:var(--ink)}
.btn-brand.primary:hover{background:var(--orange-dark);color:var(--ink);transform:translateY(-1px)}
.btn-brand.ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-brand.ghost:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px)}
.btn-brand:focus-visible{box-shadow:0 0 0 3px rgba(255,107,44,.25)}
.btn-block{width:100%}

.nav-channels{background:var(--soft);border-top:1px solid var(--line)}
.nav-channels-inner{display:flex;align-items:center;gap:10px;height:52px;overflow-x:auto;scrollbar-width:none}
.nav-channels-inner::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  padding:8px 16px;border-radius:var(--r-pill);font-size:.9375rem;color:var(--muted);
  transition:background var(--t) var(--ease),color var(--t) var(--ease)
}
.channel .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);opacity:0;transition:opacity var(--t) var(--ease)}
.channel:hover{background:#E3DED5;color:var(--ink)}
.channel.active{background:var(--ink);color:var(--bg);font-weight:700}
.channel.active .dot{opacity:1}

/* ===== Article hero ===== */
.article-hero{background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);border-bottom:1px solid var(--line);padding:36px 0 32px}
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.875rem;color:var(--weak);margin-bottom:18px}
.breadcrumb-line a{color:var(--muted)}
.breadcrumb-line a:hover{color:var(--orange)}
.breadcrumb-line .sep{color:#BDB8AF}
.article-hero h1{
  font-size:clamp(1.75rem,3.4vw,2.65rem);line-height:1.2;letter-spacing:-.02em;
  max-width:900px;text-wrap:balance;margin-bottom:18px;font-weight:800
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:.875rem;color:var(--muted)}
.article-meta .tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  background:var(--ink);color:var(--bg);font-size:.8125rem;font-weight:700
}
.article-meta span.meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--orange)}

/* ===== Article body ===== */
.article-section{padding:56px 0 72px}
.reading-wrap{max-width:800px;margin:0 auto}
.article-body{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);padding:44px 46px}
.article-body p{font-size:1.0625rem;line-height:1.9;color:var(--text);margin:0 0 1.2em}
.article-body h2{font-size:clamp(1.35rem,2.4vw,1.7rem);margin:2em 0 .8em;padding-left:14px;border-left:4px solid var(--orange);line-height:1.35}
.article-body h3{font-size:1.2rem;margin:1.7em 0 .7em;color:var(--ink)}
.article-body ul{margin:0 0 1.2em;padding-left:0}
.article-body li{position:relative;padding-left:20px;margin-bottom:.6em;font-size:1.0625rem;line-height:1.85;color:var(--text)}
.article-body li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--mint)}
.article-body img{border-radius:14px;margin:22px 0;border:1px solid var(--line)}
.article-body blockquote{
  margin:22px 0;padding:16px 22px;background:var(--soft);border-left:4px solid var(--ink);
  border-radius:0 12px 12px 0;color:var(--muted);font-size:1.0125rem;line-height:1.85
}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:.9375rem}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:var(--ink);color:var(--bg);font-weight:700}
.article-body tr:hover td{background:#FAF8F4}
.article-body a{color:var(--orange);font-weight:600;border-bottom:1px solid rgba(255,107,44,.35)}
.article-body a:hover{color:var(--orange-dark)}

.empty-state{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:64px 32px;text-align:center;box-shadow:var(--sh-card)
}
.empty-state .ico{
  width:62px;height:62px;border-radius:18px;background:var(--soft);color:var(--orange);
  display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin:0 auto 20px
}
.empty-state h2{font-size:1.35rem;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:24px}

/* ===== Related ===== */
.related-section{padding:0 0 72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(1.4rem,2.6vw,1.9rem);letter-spacing:-.01em}
.section-head p{color:var(--muted);font-size:.9375rem;margin:0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease)
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#CFC9BE}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-badge{
  position:absolute;left:12px;top:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(11,31,28,.88);color:var(--bg);font-size:.75rem;font-weight:700
}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:1.0625rem;line-height:1.5}
.rel-body h3 a{color:var(--ink)}
.rel-body h3 a:hover{color:var(--orange)}
.rel-body p{font-size:.875rem;color:var(--muted);line-height:1.7;margin:0}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:.8125rem;color:var(--weak);margin-top:auto;padding-top:6px}
.rel-foot .cat{color:var(--orange);font-weight:700}

/* ===== Back bar ===== */
.back-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:22px 26px;margin-bottom:56px
}
.back-bar .hint{font-size:.875rem;color:var(--muted)}
.back-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);
  border:1px solid var(--ink);color:var(--ink);background:transparent;font-weight:700;font-size:.9375rem;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),transform var(--t) var(--ease)
}
.btn-line:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px)}

/* ===== CTA ===== */
.cta-member{
  position:relative;background:var(--ink) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:var(--bg);padding:74px 0;text-align:center;overflow:hidden
}
.cta-member::before{content:"";position:absolute;inset:0;background:rgba(11,31,28,.85)}
.cta-member .container{position:relative;z-index:2}
.cta-member h2{color:#fff;font-size:clamp(1.6rem,3vw,2.25rem);margin-bottom:14px;letter-spacing:-.01em}
.cta-member p{color:rgba(244,242,237,.82);max-width:660px;margin:0 auto 28px;font-size:1rem;line-height:1.8}
.cta-buttons{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:26px}
.btn-outline-light2{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);
  border:1px solid rgba(244,242,237,.6);color:var(--bg);font-weight:700;font-size:.9375rem;background:transparent;
  transition:background var(--t) var(--ease),border-color var(--t) var(--ease)
}
.btn-outline-light2:hover{background:rgba(244,242,237,.14);border-color:var(--bg);color:#fff}
.btn-brand.lg{height:48px;padding:0 26px;font-size:1rem}
.cta-tags{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cta-tags span{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(244,242,237,.12);border:1px solid rgba(244,242,237,.22);font-size:.875rem;color:rgba(244,242,237,.92)
}
.cta-tags i{color:var(--mint)}

/* ===== Footer ===== */
.site-footer{background:var(--ink);color:var(--bg);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:#122E29}
.footer-brand strong{display:block;color:#fff;font-size:1.0625rem;font-weight:800}
.footer-brand em{font-style:normal;font-size:.75rem;color:rgba(244,242,237,.62)}
.site-footer p{color:rgba(244,242,237,.72);font-size:.9rem;line-height:1.8;margin:0}
.site-footer h3{color:#fff;font-size:1rem;margin-bottom:16px;font-weight:700}
.site-footer ul li{margin-bottom:10px;font-size:.9rem;color:rgba(244,242,237,.72)}
.site-footer ul li a{color:rgba(244,242,237,.72)}
.site-footer ul li a:hover{color:var(--orange)}
.footer-bottom{
  border-top:1px solid rgba(244,242,237,.15);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:.8125rem;color:rgba(244,242,237,.6)
}
.to-top{color:rgba(244,242,237,.75);display:inline-flex;align-items:center;gap:6px}
.to-top:hover{color:var(--orange)}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .container{max-width:960px}
}
@media (max-width:991px){
  .container{padding:0 20px}
  .nav-search{display:none}
  .nav-search-toggle{display:flex;align-items:center;justify-content:center;margin-left:auto}
  .nav-primary-inner{min-height:64px;gap:14px}
  .nav-actions .btn-brand.ghost{display:none}
  .nav-search.is-open{display:flex;position:absolute;left:16px;right:16px;top:72px;max-width:none;background:var(--card);padding:10px;border-radius:14px;border:1px solid var(--line);box-shadow:var(--sh-hover)}
  .nav-primary{position:relative}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-body{padding:32px 26px}
}
@media (max-width:767px){
  .nav-channels-inner{height:48px}
  .article-hero{padding:26px 0 24px}
  .article-section{padding:36px 0 52px}
  .article-body{padding:26px 20px;border-radius:14px}
  .article-body p,.article-body li{font-size:1rem}
  .related-grid{grid-template-columns:1fr}
  .back-bar{padding:18px 20px;flex-direction:column;align-items:flex-start}
  .back-actions{width:100%}
  .back-actions .btn-line,.back-actions .btn-brand{flex:1 1 auto;justify-content:center}
  .cta-member{padding:54px 0}
  .cta-buttons .btn-brand,.cta-buttons .btn-outline-light2{flex:1 1 100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category1 */
:root{
  --ink:#0B1F1C;
  --ink-2:#14312C;
  --orange:#FF6B2C;
  --orange-dark:#E85A1F;
  --mint:#5CE1B8;
  --bg:#F4F2ED;
  --card:#FFFFFF;
  --layer:#EDE9E2;
  --text:#131313;
  --text-2:#5A5F5C;
  --text-3:#8A8F8C;
  --line:#DCD7CE;
  --r-xl:20px;
  --r-lg:16px;
  --r-sm:10px;
  --shadow:0 8px 30px rgba(11,31,28,.06);
  --shadow-hv:0 14px 40px rgba(11,31,28,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --bs-primary:#FF6B2C;
  --bs-primary-rgb:255,107,44;
  --bs-body-color:#131313;
  --bs-body-bg:#F4F2ED;
  --bs-border-color:#DCD7CE;
  --bs-link-color:#0B1F1C;
  --bs-link-hover-color:#FF6B2C;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.02em}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(255,107,44,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1320px}}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============ 顶部双层导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line)}
.nav-primary{position:sticky;top:0;background:#fff;z-index:1032;transition:box-shadow .22s var(--ease)}
.site-header.scrolled .nav-primary{box-shadow:0 6px 24px rgba(11,31,28,.08)}
.nav-primary-inner{display:flex;align-items:center;gap:20px;height:70px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--ink);position:relative;flex:0 0 auto;
  box-shadow:inset 0 0 0 1px rgba(255,107,44,.35);
}
.brand-mark::before{content:"";position:absolute;inset:9px;background:var(--orange);clip-path:polygon(0 0,100% 0,0 100%)}
.brand-mark::after{content:"";position:absolute;right:7px;bottom:7px;width:9px;height:9px;border-radius:50%;background:var(--mint)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.06em}
.nav-search{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);height:46px;padding:0 6px 0 14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,107,44,.12)}
.nav-search input{flex:1;border:0;background:transparent;height:100%;font-size:.94rem;color:var(--text);outline:none}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search button{
  border:0;height:36px;min-width:44px;padding:0 12px;border-radius:8px;background:var(--orange);color:var(--ink);
  font-weight:700;cursor:pointer;transition:background .2s var(--ease),transform .2s var(--ease);
}
.nav-search button:hover{background:var(--orange-dark);transform:translateY(-1px)}
.nav-search-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);padding:11px 20px;font-weight:700;font-size:.95rem;
  transition:all .2s var(--ease);border:1px solid transparent;cursor:pointer;
}
.btn-brand.primary{background:var(--orange);color:var(--ink)}
.btn-brand.primary:hover{background:var(--orange-dark);color:var(--ink);transform:translateY(-1px)}
.btn-brand.ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-brand.ghost:hover{background:var(--ink);color:#F4F2ED}
.btn-brand.light{background:transparent;border-color:#F4F2ED;color:#F4F2ED}
.btn-brand.light:hover{background:#F4F2ED;color:var(--ink)}

.nav-channels{
  background:var(--bg);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  position:sticky;top:70px;z-index:1031;
}
.nav-channels-inner{display:flex;align-items:center;gap:8px;height:50px;overflow-x:auto;scrollbar-width:none}
.nav-channels-inner::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;padding:8px 16px;border-radius:999px;
  font-size:.94rem;color:var(--text-2);font-weight:600;transition:all .2s var(--ease);
}
.channel .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);display:none}
.channel:hover{background:var(--layer);color:var(--ink)}
.channel.active{background:var(--ink);color:#F4F2ED}
.channel.active .dot{display:inline-block}

/* ============ 分类 Hero ============ */
.category-hero{
  position:relative;overflow:hidden;background:var(--ink);
  background-image:linear-gradient(rgba(11,31,28,.93),rgba(11,31,28,.86)),
                   url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:56px 0 56px;color:#F4F2ED;
}
.category-hero::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,44,.30),transparent 68%);
}
.category-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:40px;align-items:center}
.crumb{display:flex;align-items:center;gap:8px;font-size:.85rem;color:rgba(244,242,237,.66);margin-bottom:16px}
.crumb a{color:rgba(244,242,237,.8)}
.crumb a:hover{color:var(--orange)}
.crumb span.sep{opacity:.5}
.category-hero h1{
  font-size:clamp(1.9rem,3.6vw,2.9rem);font-weight:800;line-height:1.18;color:#F4F2ED;text-wrap:balance;
}
.category-hero h1 em{font-style:normal;color:var(--orange)}
.hero-sub{margin-top:16px;font-size:1.02rem;color:rgba(244,242,237,.82);max-width:620px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  border:1px solid rgba(244,242,237,.22);font-size:.85rem;color:rgba(244,242,237,.9);background:rgba(255,255,255,.05);
}
.chip i{color:var(--mint)}
.login-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:26px;
  box-shadow:0 24px 60px rgba(0,0,0,.28);color:var(--text);
}
.login-card h3{font-size:1.2rem;font-weight:800;margin-bottom:4px}
.login-card .card-note{font-size:.85rem;color:var(--text-3);margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:.85rem;color:var(--text-2);margin-bottom:6px}
.field input{
  width:100%;height:48px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;
  padding:0 14px;font-size:.95rem;color:var(--text);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,107,44,.12)}
.login-card .btn-brand{width:100%;height:48px}
.card-links{display:flex;justify-content:space-between;gap:12px;margin-top:14px;font-size:.85rem}
.card-links a{color:var(--text-2)}
.card-links a:hover{color:var(--orange)}

/* ============ 通用板块 ============ */
.section{padding:84px 0}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;letter-spacing:.14em;
  color:var(--orange);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.55rem,2.8vw,2.25rem);font-weight:800;line-height:1.25}
.section-head p{margin-top:14px;color:var(--text-2);font-size:1rem}
.section-alt{background:var(--layer)}
.accent-bar{width:56px;height:4px;border-radius:999px;background:var(--orange);margin-bottom:18px}

/* 步骤时间轴 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--shadow);transition:transform .22s var(--ease),box-shadow .22s var(--ease);
  position:relative;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hv)}
.step .num{
  font-family:Inter,"DIN Alternate",system-ui,sans-serif;font-size:2.2rem;font-weight:800;
  color:var(--mint);line-height:1;margin-bottom:12px;
}
.step h3{font-size:1.08rem;font-weight:800;margin-bottom:8px}
.step p{font-size:.92rem;color:var(--text-2);margin:0}
.step .tagline{
  display:inline-block;margin-top:14px;font-size:.78rem;color:var(--ink);background:rgba(255,107,44,.14);
  border-radius:999px;padding:4px 10px;font-weight:700;
}
.step::after{
  content:"";position:absolute;top:38px;right:-14px;width:14px;height:2px;background:var(--line);
}
.step:last-child::after{display:none}

/* 对比表 */
.table-shell{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.compare-table{width:100%;border-collapse:collapse;min-width:720px}
.compare-table thead th{
  background:var(--ink);color:#F4F2ED;font-weight:700;font-size:.94rem;padding:16px 20px;text-align:left;
  border-bottom:1px solid rgba(244,242,237,.14);
}
.compare-table thead th:first-child{position:sticky;left:0;background:var(--ink);z-index:2}
.compare-table tbody td{padding:16px 20px;border-bottom:1px solid var(--line);font-size:.94rem;color:var(--text-2);vertical-align:middle}
.compare-table tbody td:first-child{
  font-weight:700;color:var(--text);background:#fff;position:sticky;left:0;z-index:2;min-width:150px;
}
.compare-table tbody tr:hover td{background:var(--bg)}
.compare-table tbody tr:hover td:first-child{background:var(--bg)}
.compare-table .col-hot{background:rgba(255,107,44,.06)}
.compare-table .status{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--text)}
.pin{width:8px;height:8px;border-radius:50%;background:var(--mint);display:inline-block}
.pin.off{background:var(--text-3)}
.badge-level{
  display:inline-flex;align-items:center;gap:6px;font-size:.76rem;font-weight:700;border-radius:999px;
  padding:3px 10px;background:var(--orange);color:var(--ink);
}
.badge-soft{display:inline-flex;align-items:center;gap:6px;font-size:.76rem;font-weight:700;border-radius:999px;padding:3px 10px;background:var(--layer);color:var(--text-2)}
.table-scroll{overflow-x:auto;border-radius:var(--r-lg)}

/* 卡片区 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hv)}
.info-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--layer)}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.info-card:hover .thumb img{transform:scale(1.03)}
.info-card .pill{
  position:absolute;left:14px;top:14px;background:rgba(11,31,28,.86);color:#F4F2ED;font-size:.76rem;
  padding:4px 11px;border-radius:999px;font-weight:700;
}
.info-card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.info-card h3{font-size:1.1rem;font-weight:800}
.info-card p{font-size:.92rem;color:var(--text-2);margin:0}
.info-card .meta{font-size:.82rem;color:var(--text-3);margin-top:auto;display:flex;align-items:center;gap:8px}

/* 注意事项 */
.notes-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.note{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--line);
  border-radius:var(--r-lg);padding:22px;transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.note:hover{border-left-color:var(--orange);transform:translateY(-2px);box-shadow:var(--shadow)}
.note i{color:var(--orange);font-size:1.1rem;margin-top:4px}
.note h3{font-size:1rem;font-weight:800;margin-bottom:6px}
.note p{font-size:.92rem;color:var(--text-2);margin:0}

/* FAQ */
.faq-accordion{max-width:900px}
.faq-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);font-weight:700;font-size:1.02rem;padding:20px 44px 20px 0;
  box-shadow:none;border-radius:0;position:relative;
}
.faq-accordion .accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.85rem;color:var(--text-3);
  background-image:none;width:auto;height:auto;transform:none;transition:transform .22s var(--ease),color .22s var(--ease);
  position:absolute;right:8px;top:50%;margin-top:-.5em;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--text);background:transparent;font-weight:800}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--orange)}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:-14px;top:16px;bottom:16px;width:3px;border-radius:999px;background:var(--orange);
}
.faq-accordion .accordion-body{padding:0 0 22px;color:var(--text-2);font-size:.96rem;max-width:720px;line-height:1.8}

/* CTA */
.cta-member{
  position:relative;border-radius:var(--r-xl);overflow:hidden;color:#F4F2ED;
  background-image:linear-gradient(rgba(11,31,28,.88),rgba(11,31,28,.88)),
                   url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:64px 48px;text-align:center;
}
.cta-member h2{color:#F4F2ED;font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800}
.cta-member p{color:rgba(244,242,237,.82);max-width:640px;margin:16px auto 26px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-tags{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.cta-tags span{
  display:inline-flex;align-items:center;gap:8px;font-size:.84rem;color:rgba(244,242,237,.9);
  border:1px solid rgba(244,242,237,.22);padding:6px 14px;border-radius:999px;
}
.cta-tags i{color:var(--mint)}

/* 页脚 */
.site-footer{background:var(--ink);color:#F4F2ED;padding:64px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;border-bottom:1px solid rgba(244,242,237,.14)}
.site-footer h3{color:#F4F2ED;font-size:1rem;font-weight:800;margin-bottom:16px}
.site-footer p{color:rgba(244,242,237,.72);font-size:.92rem;margin-top:16px;max-width:340px}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand strong{font-size:1.05rem;font-weight:800;display:block;color:#F4F2ED}
.footer-brand em{font-style:normal;font-size:.8rem;color:rgba(244,242,237,.6)}
.site-footer ul li{margin-bottom:10px;font-size:.92rem;color:rgba(244,242,237,.72)}
.site-footer ul li a{color:rgba(244,242,237,.78)}
.site-footer ul li a:hover{color:var(--orange)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0 28px;font-size:.85rem;color:rgba(244,242,237,.6)}
.to-top{color:#F4F2ED;display:inline-flex;align-items:center;gap:8px}
.to-top:hover{color:var(--orange)}

/* 响应式 */
@media (max-width:1199px){
  .container{padding:0 20px}
  .hero-grid{grid-template-columns:1.2fr .9fr;gap:28px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
}
@media (max-width:991px){
  .nav-primary-inner{height:64px;gap:14px}
  .nav-search{max-width:280px}
  .nav-channels{top:64px}
  .section{padding:60px 0}
  .category-hero{padding:44px 0}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .notes-wrap{grid-template-columns:1fr}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .nav-search{display:none}
  .nav-search-toggle{display:inline-flex;align-items:center;justify-content:center}
  .site-header.search-open .nav-search{
    display:flex;position:absolute;left:16px;right:16px;top:70px;max-width:none;z-index:1040;
    box-shadow:0 12px 30px rgba(11,31,28,.14);
  }
  .nav-actions .btn-brand{padding:9px 14px;font-size:.88rem}
  .nav-channels-inner{height:46px;gap:6px}
  .nav-channels{top:64px}
  .channel{padding:7px 13px;font-size:.88rem}
  .category-hero h1{font-size:1.7rem}
  .steps{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .section-head h2{font-size:1.5rem}
  .cta-member{padding:44px 22px}
  .cta-actions .btn-brand{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .compare-table{min-width:0}
  .compare-table, .compare-table thead, .compare-table tbody, .compare-table th, .compare-table td, .compare-table tr{display:block}
  .compare-table thead{display:none}
  .compare-table tbody td{border:0;padding:10px 18px}
  .compare-table tbody td:first-child{
    position:static;background:var(--layer);border-radius:0;font-size:1rem;padding:14px 18px;border-bottom:1px solid var(--line);
  }
  .compare-table tbody td[data-label]::before{
    content:attr(data-label);display:block;font-size:.78rem;color:var(--text-3);font-weight:600;margin-bottom:4px;
  }
  .compare-table tbody tr{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin-bottom:18px}
}
@media (max-width:519px){
  .brand-text strong{font-size:17px}
  .brand-text em{font-size:11px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --ink:#0B1F1C;
  --ink-soft:#123A34;
  --orange:#FF6B2C;
  --orange-dark:#E85A1F;
  --mint:#5CE1B8;
  --bg:#F4F2ED;
  --card:#FFFFFF;
  --soft:#EDE9E2;
  --text:#131313;
  --text-2:#5A5F5C;
  --text-3:#8A8F8C;
  --line:#DCD7CE;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-1:0 8px 30px rgba(11,31,28,.06);
  --shadow-2:0 14px 40px rgba(11,31,28,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --bs-primary:#FF6B2C;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-body-color:#131313;
  --bs-border-color:#DCD7CE;
  --bs-link-color:#0B1F1C;
  --bs-link-hover-color:#FF6B2C;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:1rem;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
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:3px solid rgba(255,107,44,.35);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){
  .container{max-width:1320px}
}

/* ---------- Header ---------- */
.site-header{
  position:relative;
  z-index:1030;
  background:#fff;
}
.nav-primary{
  position:sticky;
  top:0;
  z-index:1040;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.nav-primary-inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:20px;
  min-height:68px;
}
.site-header.is-scrolled .nav-primary{box-shadow:0 10px 30px rgba(11,31,28,.08)}
.site-header.is-scrolled .nav-channels{box-shadow:0 8px 22px rgba(11,31,28,.06)}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--ink);
  position:relative;
  display:inline-block;
  flex:0 0 auto;
  overflow:hidden;
}
.brand-mark::before{
  content:"";
  position:absolute;
  inset:9px 9px auto auto;
  width:16px;height:16px;
  background:var(--orange);
  clip-path:polygon(100% 0,100% 100%,0 100%);
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:9px;bottom:9px;
  width:12px;height:12px;
  background:var(--mint);
  border-radius:3px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:20px;font-weight:800;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-2);letter-spacing:.06em}

.nav-search{
  position:relative;
  flex:1 1 auto;
  max-width:420px;
  margin:0 auto;
  display:flex;
  align-items:stretch;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  height:46px;
  padding:0 4px 0 14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,107,44,.12)}
.nav-search input{
  flex:1 1 auto;
  border:0;
  outline:none;
  background:transparent;
  font-size:.94rem;
  color:var(--text);
  min-width:0;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search button{
  border:0;
  background:var(--orange);
  color:var(--ink);
  width:42px;
  margin:4px 0;
  border-radius:8px;
  font-size:.95rem;
  cursor:pointer;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.nav-search button:hover{background:var(--orange-dark);transform:translateY(-1px)}
.nav-search-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  cursor:pointer;
}

.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:.94rem;
  font-weight:700;
  padding:11px 20px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-brand.primary{background:var(--orange);color:var(--ink)}
.btn-brand.primary:hover{background:var(--orange-dark);color:var(--ink);transform:translateY(-1px);box-shadow:0 10px 24px rgba(232,90,31,.28)}
.btn-brand.ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-brand.ghost:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px)}
.btn-brand.inverse{background:transparent;border-color:rgba(244,242,237,.7);color:#F4F2ED}
.btn-brand.inverse:hover{background:#F4F2ED;color:var(--ink)}
.btn-brand.light{background:#F4F2ED;color:var(--ink)}
.btn-brand.light:hover{background:#fff;color:var(--ink)}
.btn-brand.block{width:100%}

.nav-channels{
  position:sticky;
  top:68px;
  z-index:1035;
  background:var(--soft);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.nav-channels-inner{
  display:flex;
  align-items:center;
  gap:10px;
  height:50px;
  overflow-x:auto;
  flex-wrap:nowrap;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-channels-inner::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 15px;
  border-radius:999px;
  font-size:.93rem;
  font-weight:600;
  color:var(--text-2);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.channel:hover{background:#fff;color:var(--ink)}
.channel .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--orange);
  display:none;
}
.channel.active{background:var(--ink);color:var(--bg)}
.channel.active .dot{display:inline-block}
.channel.active:hover{background:var(--ink);color:var(--bg)}

/* ---------- Section basics ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:42px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.82rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--orange-dark);
  text-transform:none;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);border-radius:2px}
.section-head h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;line-height:1.2;margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:1.02rem}

/* ---------- Category hero ---------- */
.category-hero{
  position:relative;
  overflow:hidden;
  background-color:var(--ink);
  background-image:linear-gradient(105deg,rgba(11,31,28,.94) 0%,rgba(11,31,28,.86) 52%,rgba(11,31,28,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#F4F2ED;
  padding:52px 0 66px;
  scroll-margin-top:130px;
}
.category-hero-inner{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:44px;
  align-items:center;
}
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:.85rem;
  color:rgba(244,242,237,.72);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.breadcrumb-line a{color:rgba(244,242,237,.82)}
.breadcrumb-line a:hover{color:var(--orange)}
.breadcrumb-line span{color:rgba(244,242,237,.45)}
.category-hero h1{
  color:#fff;
  font-size:clamp(2rem,4vw,3rem);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.02em;
  margin-bottom:16px;
  text-wrap:balance;
}
.category-hero p.lead-text{
  color:rgba(244,242,237,.82);
  font-size:1.04rem;
  max-width:620px;
  margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px}
.hero-tags span{
  position:relative;
  font-size:.88rem;
  color:rgba(244,242,237,.78);
  padding-left:16px;
}
.hero-tags span::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:7px;height:7px;
  border-radius:2px;
  background:var(--mint);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

.hero-panel{
  background:rgba(255,255,255,.97);
  border:1px solid rgba(220,215,206,.9);
  border-radius:var(--radius-lg);
  box-shadow:0 24px 60px rgba(0,0,0,.28);
  overflow:hidden;
}
.hero-panel-img{height:150px;background-size:cover;background-position:center;background-image:url("/assets/images/coverpic/cover-3.png")}
.hero-panel-body{padding:22px 24px 26px}
.hero-panel-body h2{font-size:1.12rem;font-weight:800;margin-bottom:10px}
.hero-panel-body p{font-size:.9rem;color:var(--text-2)}
.hero-mini-list{margin-top:16px;display:grid;gap:10px}
.hero-mini-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:.9rem;
  color:var(--text-2);
}
.hero-mini-list i{color:var(--orange);margin-top:4px}

/* ---------- Compare table ---------- */
.compare-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);
  overflow-x:auto;
}
table.compare{
  width:100%;
  min-width:760px;
  border-collapse:separate;
  border-spacing:0;
}
table.compare thead th{
  background:var(--ink);
  color:#F4F2ED;
  font-size:.95rem;
  font-weight:700;
  text-align:left;
  padding:18px 20px;
  white-space:nowrap;
  border-bottom:1px solid var(--ink);
}
table.compare thead th:first-child{
  position:sticky;
  left:0;
  z-index:3;
  border-top-left-radius:16px;
}
table.compare thead th:last-child{border-top-right-radius:16px}
table.compare thead th.hl{background:var(--ink-soft);box-shadow:inset 0 -3px 0 var(--orange)}
table.compare tbody th{
  text-align:left;
  font-size:.95rem;
  font-weight:700;
  color:var(--ink);
  padding:16px 20px;
  background:#fff;
  position:sticky;
  left:0;
  z-index:2;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
table.compare tbody td{
  padding:16px 20px;
  font-size:.94rem;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
table.compare tbody tr:last-child th,
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover th,
table.compare tbody tr:hover td{background:var(--bg)}
table.compare tbody td.hl{background:rgba(255,107,44,.06)}
table.compare tbody tr:hover td.hl{background:rgba(255,107,44,.11)}
.cell-strong{color:var(--ink);font-weight:700}
.cell-muted{color:var(--text-3)}
.pill-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:999px;
  font-size:.78rem;
  font-weight:700;
  background:var(--soft);
  color:var(--text-2);
}
.pill-tag.member{background:var(--orange);color:var(--ink)}
.pill-tag.mint{background:rgba(92,225,184,.24);color:#0B6B52}
.dot-status{
  display:inline-block;
  width:8px;height:8px;border-radius:50%;
  background:var(--text-3);
  margin-right:7px;
  vertical-align:middle;
}
.dot-status.on{background:var(--mint)}
.dot-status.off{background:#D64545;opacity:.6}

/* ---------- Benefit cards (2 x 3 staggered) ---------- */
.benefit-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:26px;
  align-items:start;
}
.benefit-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.benefit-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.benefit-card:nth-child(2n){margin-top:30px}
.benefit-media{position:relative;height:158px;overflow:hidden}
.benefit-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.benefit-card:hover .benefit-media img{transform:scale(1.04)}
.benefit-media .badge-level{
  position:absolute;
  top:12px;left:12px;
  background:var(--orange);
  color:var(--ink);
  font-size:.76rem;
  font-weight:800;
  padding:4px 11px;
  border-radius:999px;
}
.benefit-body{padding:22px 24px 26px}
.benefit-body h3{font-size:1.16rem;font-weight:800;margin-bottom:10px}
.benefit-body p{color:var(--text-2);font-size:.94rem}
.benefit-meta{
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:16px;
  padding-top:14px;
  border-top:1px dashed var(--line);
  font-size:.84rem;
  color:var(--text-3);
}
.benefit-meta strong{color:var(--ink);font-weight:700}

/* ---------- Usage steps ---------- */
.usage-band{background:var(--soft)}
.usage-grid{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:48px;
  align-items:start;
}
.usage-note{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);
  padding:26px 28px;
}
.usage-note h3{font-size:1.1rem;font-weight:800;margin-bottom:12px}
.usage-note p{font-size:.93rem;color:var(--text-2)}
.usage-note ul{margin-top:16px;display:grid;gap:10px}
.usage-note li{display:flex;gap:10px;font-size:.9rem;color:var(--text-2)}
.usage-note li i{color:var(--orange);margin-top:5px}
.step-list{display:grid;gap:0}
.step-item{
  display:grid;
  grid-template-columns:56px minmax(0,1fr);
  gap:20px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:border-color .2s var(--ease);
}
.step-item:first-child{padding-top:4px}
.step-item:last-child{border-bottom:0;padding-bottom:4px}
.step-item .num{
  font-family:Inter,"DIN Alternate",system-ui,sans-serif;
  font-size:1.6rem;
  font-weight:800;
  color:var(--orange);
  line-height:1.2;
}
.step-item h3{font-size:1.05rem;font-weight:800;margin-bottom:6px}
.step-item p{font-size:.93rem;color:var(--text-2);max-width:640px}
.step-item:hover{border-color:var(--orange)}

/* ---------- FAQ ---------- */
.faq-accordion{max-width:920px}
.faq-accordion .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq-accordion .accordion-button{
  background:transparent;
  color:var(--ink);
  font-size:1.02rem;
  font-weight:600;
  padding:20px 44px 20px 18px;
  box-shadow:none;
  border-radius:0;
  position:relative;
}
.faq-accordion .accordion-button::after{
  display:none;
}
.faq-accordion .accordion-button::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:16px;
  top:50%;
  transform:translateY(-50%);
  font-size:.85rem;
  color:var(--text-3);
  transition:transform .22s var(--ease),color .2s var(--ease);
}
.faq-accordion .accordion-button::after{
  content:"";
  position:absolute;
  left:0;top:18px;bottom:18px;
  width:3px;
  border-radius:3px;
  background:transparent;
  display:block;
  transition:background .2s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--ink);
  font-weight:800;
  background:transparent;
}
.faq-accordion .accordion-button:not(.collapsed)::before{
  color:var(--orange);
  transform:translateY(-50%) rotate(180deg);
}
.faq-accordion .accordion-button:not(.collapsed)::after{background:var(--orange)}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:none;border-radius:0}
.faq-accordion .accordion-button:hover{color:var(--orange-dark)}
.faq-accordion .accordion-body{
  padding:0 18px 22px 18px;
  color:var(--text-2);
  font-size:.95rem;
  line-height:1.75;
  max-width:760px;
}

/* ---------- CTA ---------- */
.cta-member{
  position:relative;
  background-color:var(--ink);
  background-image:linear-gradient(rgba(11,31,28,.88),rgba(11,31,28,.92)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  color:#F4F2ED;
  padding:84px 0;
  overflow:hidden;
}
.cta-inner{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:44px;
  align-items:center;
}
.cta-member h2{
  color:#fff;
  font-size:clamp(1.7rem,3vw,2.35rem);
  font-weight:800;
  line-height:1.2;
  margin-bottom:14px;
}
.cta-member p{color:rgba(244,242,237,.8);font-size:1rem;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-tags{
  display:flex;
  flex-wrap:wrap;
  gap:14px 26px;
  margin-top:26px;
  padding-top:22px;
  border-top:1px solid rgba(244,242,237,.18);
}
.cta-tags span{font-size:.88rem;color:rgba(244,242,237,.76);display:inline-flex;align-items:center;gap:8px}
.cta-tags i{color:var(--mint)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#F4F2ED;padding:64px 0 26px;margin-top:0}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,2.6fr) minmax(0,2.6fr) minmax(0,2.8fr);
  gap:36px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(244,242,237,.14);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:#F4F2ED}
.footer-brand .brand-mark::after{background:var(--mint)}
.footer-brand strong{display:block;font-size:1.05rem;font-weight:800;color:#fff}
.footer-brand em{font-style:normal;font-size:.8rem;color:rgba(244,242,237,.62);letter-spacing:.05em}
.site-footer p{color:rgba(244,242,237,.66);font-size:.9rem;max-width:360px}
.site-footer h3{color:#fff;font-size:.98rem;font-weight:800;margin-bottom:16px}
.site-footer ul{display:grid;gap:10px}
.site-footer li{font-size:.9rem;color:rgba(244,242,237,.66)}
.site-footer a{color:rgba(244,242,237,.78)}
.site-footer a:hover{color:var(--orange)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:22px;
  font-size:.84rem;
  color:rgba(244,242,237,.55);
}
.to-top{display:inline-flex;align-items:center;gap:7px;color:rgba(244,242,237,.8)}
.to-top:hover{color:var(--orange)}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .section{padding:76px 0}
  .usage-grid{gap:36px}
}
@media (max-width:991.98px){
  .nav-search{display:none}
  .nav-search.is-open{
    display:flex;
    position:absolute;
    left:16px;right:16px;
    top:calc(100% + 10px);
    max-width:none;
    background:#fff;
    box-shadow:var(--shadow-2);
    z-index:60;
  }
  .nav-search-toggle{display:inline-flex}
  .nav-primary-inner{gap:12px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px;min-height:64px}
  .nav-actions .btn-brand{padding:10px 14px;font-size:.88rem}
  .nav-channels{top:0}
  .nav-channels-inner{height:48px}
  .category-hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-panel{max-width:520px}
  .benefit-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .benefit-card:nth-child(2n){margin-top:0}
  .benefit-card:nth-child(3n){margin-top:24px}
  .usage-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .brand-text strong{font-size:17px}
  .brand-text em{font-size:11px}
  .brand-mark{width:34px;height:34px}
  .nav-actions{gap:8px}
  .nav-actions .btn-brand{padding:9px 12px;font-size:.84rem}
  .nav-channels-inner{
    height:46px;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
  }
  .category-hero{padding:36px 0 48px}
  .category-hero h1{font-size:clamp(1.7rem,7vw,2.2rem)}
  .hero-actions .btn-brand{width:100%}

  /* table -> stacked cards */
  .compare-wrap{border:0;box-shadow:none;background:transparent;overflow:visible}
  table.compare{min-width:0;display:block}
  table.compare thead{display:none}
  table.compare tbody{display:block}
  table.compare tbody tr{
    display:block;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    box-shadow:var(--shadow-1);
    margin-bottom:16px;
    overflow:hidden;
  }
  table.compare tbody th{
    position:static;
    display:block;
    padding:14px 18px;
    background:var(--soft);
    border-bottom:1px solid var(--line);
    font-size:1rem;
  }
  table.compare tbody td{
    display:block;
    padding:12px 18px;
    border-bottom:1px dashed var(--line);
  }
  table.compare tbody tr td:last-child{border-bottom:0}
  table.compare tbody td::before{
    content:attr(data-label);
    display:block;
    font-size:.78rem;
    font-weight:700;
    color:var(--text-3);
    margin-bottom:3px;
  }
  table.compare tbody tr:hover th,
  table.compare tbody tr:hover td{background:inherit}
  table.compare tbody tr:hover th{background:var(--soft)}
  table.compare tbody td.hl{background:rgba(255,107,44,.06)}
  table.compare tbody tr:hover td.hl{background:rgba(255,107,44,.06)}

  .benefit-grid{grid-template-columns:1fr;gap:18px}
  .benefit-card:nth-child(3n){margin-top:0}
  .benefit-body{padding:18px 20px 22px}
  .hero-panel-img{height:124px}
  .step-item{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:18px 0}
  .step-item .num{font-size:1.35rem}
  .faq-accordion .accordion-button{font-size:.95rem;padding:18px 40px 18px 16px}
  .cta-member{padding:60px 0}
  .cta-tags{gap:10px 20px}
  .cta-tags span{font-size:.84rem}
  .cta-actions .btn-brand{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519.98px){
  body{font-size:.96rem}
  .nav-actions .btn-brand.ghost{display:none}
  .brand-text em{display:none}
  .hero-panel-body{padding:18px 18px 22px}
  .usage-note{padding:20px 20px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --ink:#0B1F1C;
  --orange:#FF6B2C;
  --orange-dark:#E85A1F;
  --mint:#5CE1B8;
  --bg:#F4F2ED;
  --card:#FFFFFF;
  --tint:#EDE9E2;
  --text:#131313;
  --muted:#5A5F5C;
  --weak:#8A8F8C;
  --line:#DCD7CE;
  --line-soft:rgba(19,19,19,.08);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:10px;
  --shadow:0 8px 30px rgba(11,31,28,.06);
  --shadow-lg:0 14px 40px rgba(11,31,28,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --bs-primary:#FF6B2C;
  --bs-body-bg:#F4F2ED;
  --bs-body-color:#131313;
  --bs-border-color:#DCD7CE;
  --bs-border-radius:16px;
  --bs-link-color:#0B1F1C;
  --bs-link-hover-color:#FF6B2C;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:1rem;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color 200ms var(--ease);}
a:hover{color:var(--orange);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em;color:var(--text);margin:0;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}

:focus-visible{
  outline:3px solid rgba(255,107,44,.35);
  outline-offset:2px;
  border-radius:6px;
}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){
  .container{max-width:1320px;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
}

section[id],div[id]{scroll-margin-top:130px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--card);
  transition:box-shadow 220ms var(--ease);
}
.site-header.is-scrolled{
  box-shadow:0 6px 24px rgba(11,31,28,.10);
}
.nav-primary{
  border-bottom:1px solid var(--line-soft);
}
.nav-primary-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:11px;
  background:var(--ink);
  position:relative;
  overflow:hidden;
  flex-shrink:0;
}
.brand-mark::before{
  content:"";
  position:absolute;
  width:16px;
  height:16px;
  background:var(--orange);
  top:6px;
  left:6px;
  border-radius:3px;
  transform:rotate(12deg);
}
.brand-mark::after{
  content:"";
  position:absolute;
  width:12px;
  height:12px;
  background:var(--mint);
  bottom:5px;
  right:5px;
  border-radius:3px;
  transform:rotate(-14deg);
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.15;
}
.brand-text strong{
  font-size:1.15rem;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
}
.brand-text em{
  font-style:normal;
  font-size:.75rem;
  color:var(--muted);
  letter-spacing:.02em;
}
.nav-search{
  display:flex;
  align-items:center;
  flex:1 1 auto;
  max-width:420px;
  margin-left:8px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  overflow:hidden;
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.nav-search:focus-within{
  border-color:var(--orange);
  box-shadow:0 0 0 3px rgba(255,107,44,.12);
}
.nav-search input{
  flex:1 1 auto;
  height:46px;
  padding:0 16px;
  border:0;
  background:transparent;
  font-size:.9375rem;
  color:var(--text);
  outline:none;
  min-width:0;
}
.nav-search input::placeholder{color:var(--weak);}
.nav-search button{
  width:52px;
  height:46px;
  border:0;
  background:var(--orange);
  color:var(--ink);
  font-size:1rem;
  cursor:pointer;
  transition:background 200ms var(--ease);
}
.nav-search button:hover{background:var(--orange-dark);}
.nav-search-toggle{
  display:none;
  width:46px;
  height:46px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--card);
  color:var(--ink);
  cursor:pointer;
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex-shrink:0;
}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--r-sm);
  font-size:.9375rem;
  font-weight:700;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:all 200ms var(--ease);
  white-space:nowrap;
}
.btn-brand.primary{
  background:var(--orange);
  color:var(--ink);
}
.btn-brand.primary:hover{
  background:var(--orange-dark);
  color:var(--ink);
  transform:translateY(-1px);
}
.btn-brand.ghost{
  background:transparent;
  border-color:var(--ink);
  color:var(--ink);
}
.btn-brand.ghost:hover{
  background:var(--ink);
  color:var(--bg);
  transform:translateY(-1px);
}
.btn-brand.light{
  background:transparent;
  border-color:rgba(244,242,237,.6);
  color:var(--bg);
}
.btn-brand.light:hover{
  background:var(--bg);
  color:var(--ink);
}
.btn-brand.block{width:100%;}

.nav-channels{
  background:var(--card);
  border-bottom:1px solid var(--line-soft);
}
.nav-channels-inner{
  display:flex;
  align-items:center;
  gap:10px;
  height:50px;
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
  mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
}
.nav-channels-inner::-webkit-scrollbar{display:none;}
.channel{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 16px;
  border-radius:999px;
  font-size:.9375rem;
  color:var(--muted);
  transition:all 200ms var(--ease);
  flex-shrink:0;
}
.channel:hover{
  background:var(--tint);
  color:var(--ink);
}
.channel .dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:transparent;
  transition:background 200ms var(--ease);
}
.channel.active{
  background:var(--ink);
  color:var(--bg);
  font-weight:700;
}
.channel.active .dot{background:var(--orange);}
.channel.active:hover{color:var(--bg);}

/* ============ 分类 Hero ============ */
.category-hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  min-height:320px;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.category-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(11,31,28,.94) 0%,rgba(11,31,28,.86) 46%,rgba(11,31,28,.58) 100%);
}
.category-hero .container{
  position:relative;
  z-index:1;
  padding-top:54px;
  padding-bottom:54px;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
}
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:.875rem;
  color:rgba(244,242,237,.72);
  margin-bottom:18px;
}
.breadcrumb-line a{color:rgba(244,242,237,.9);}
.breadcrumb-line a:hover{color:var(--orange);}
.breadcrumb-line span.sep{color:rgba(244,242,237,.45);}
.category-hero h1{
  color:var(--bg);
  font-size:clamp(2rem,4vw,3.1rem);
  line-height:1.14;
  letter-spacing:-.02em;
  margin-bottom:16px;
  text-wrap:balance;
}
.category-hero h1 .accent{color:var(--mint);}
.hero-lead{
  color:rgba(244,242,237,.82);
  font-size:1.0625rem;
  max-width:56ch;
  margin-bottom:24px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  padding-top:18px;
  border-top:1px solid rgba(244,242,237,.18);
}
.hero-tags li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.875rem;
  color:rgba(244,242,237,.74);
}
.hero-tags i{color:var(--orange);font-size:.75rem;}
.hero-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid rgba(244,242,237,.16);
  box-shadow:0 20px 50px rgba(0,0,0,.35);
  background:var(--ink);
}
.hero-visual img{
  width:100%;
  height:240px;
  object-fit:cover;
}
.hero-visual-caption{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:14px 18px;
  background:linear-gradient(180deg,rgba(11,31,28,0) 0%,rgba(11,31,28,.88) 100%);
  color:var(--bg);
  font-size:.8125rem;
  letter-spacing:.02em;
}

/* ============ 通用板块 ============ */
.section{
  padding:88px 0;
}
.section.tight{padding:64px 0;}
.section-head{
  max-width:760px;
  margin-bottom:44px;
}
.section-head.center{
  margin-left:auto;
  margin-right:auto;
  text-align:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--orange);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  background:var(--orange);
  border-radius:2px;
}
.section-head.center .eyebrow::before{display:none;}
.section h2{
  font-size:clamp(1.6rem,3vw,2.4rem);
  line-height:1.2;
  margin-bottom:16px;
}
.section-sub{
  color:var(--muted);
  font-size:1rem;
  margin:0;
}
.surface-tint{background:var(--tint);}
.surface-white{background:var(--card);}

/* ============ 等级时间轴 ============ */
.level-timeline{
  position:relative;
  display:grid;
  gap:0;
}
.level-timeline::before{
  content:"";
  position:absolute;
  left:52px;
  top:18px;
  bottom:18px;
  width:2px;
  background:linear-gradient(180deg,var(--mint) 0%,var(--orange) 60%,rgba(220,215,206,.5) 100%);
  border-radius:2px;
}
.level-item{
  position:relative;
  display:grid;
  grid-template-columns:104px minmax(0,1fr);
  gap:24px;
  padding:22px 0;
  border-bottom:1px solid var(--line-soft);
  transition:border-color 220ms var(--ease);
}
.level-item:last-child{border-bottom:0;}
.level-item::after{
  content:"";
  position:absolute;
  left:45px;
  top:38px;
  width:16px;
  height:16px;
  border-radius:50%;
  background:var(--card);
  border:3px solid var(--mint);
  transition:border-color 220ms var(--ease),transform 220ms var(--ease);
}
.level-item:nth-child(4)::after,
.level-item:nth-child(5)::after{border-color:var(--orange);}
.level-item:hover::after{transform:scale(1.15);}
.level-num{
  font-family:Inter,"DIN Alternate",system-ui,sans-serif;
  font-size:3rem;
  font-weight:800;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.6px var(--line);
  letter-spacing:-.03em;
  padding-left:4px;
}
.level-item.is-active .level-num{
  color:var(--mint);
  -webkit-text-stroke:1.6px transparent;
}
.level-item:nth-child(4) .level-num,
.level-item:nth-child(5) .level-num{
  color:var(--orange);
  -webkit-text-stroke:1.6px transparent;
}
.level-body h3{
  font-size:1.25rem;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:8px;
}
.level-body p{
  color:var(--muted);
  font-size:.9375rem;
  margin-bottom:14px;
  max-width:70ch;
}
.level-badge{
  display:inline-flex;
  align-items:center;
  padding:3px 12px;
  border-radius:999px;
  font-size:.75rem;
  font-weight:700;
  background:var(--orange);
  color:var(--ink);
}
.level-badge.soft{
  background:var(--tint);
  color:var(--muted);
}
.level-bar{
  height:8px;
  border-radius:999px;
  background:var(--tint);
  overflow:hidden;
  max-width:420px;
}
.level-bar span{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--mint),var(--orange));
}
.level-meta{
  margin-top:10px;
  font-size:.8125rem;
  color:var(--weak);
}

/* ============ 对比表 ============ */
.table-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--card);
  box-shadow:var(--shadow);
  overflow-x:auto;
}
.compare-table{
  width:100%;
  border-collapse:collapse;
  min-width:720px;
}
.compare-table thead th{
  background:var(--ink);
  color:var(--bg);
  font-size:.9375rem;
  font-weight:700;
  text-align:left;
  padding:18px 20px;
  white-space:nowrap;
}
.compare-table thead th:first-child{
  position:sticky;
  left:0;
  z-index:2;
  background:var(--ink);
}
.compare-table thead th.hl{color:var(--orange);}
.compare-table tbody th{
  text-align:left;
  font-weight:700;
  font-size:.9375rem;
  padding:16px 20px;
  background:var(--card);
  border-bottom:1px solid var(--line-soft);
  white-space:nowrap;
  position:sticky;
  left:0;
  z-index:1;
}
.compare-table tbody td{
  padding:16px 20px;
  font-size:.9375rem;
  color:var(--muted);
  border-bottom:1px solid var(--line-soft);
}
.compare-table tbody tr:hover td,
.compare-table tbody tr:hover th{background:var(--bg);}
.compare-table tbody td.hl{background:rgba(255,107,44,.06);color:var(--text);}
.compare-table tbody tr:last-child td,
.compare-table tbody tr:last-child th{border-bottom:0;}
.cell-mark{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.cell-mark i{color:var(--mint);}
.cell-mark i.off{color:var(--weak);}
.mobile-cards{display:none;}

/* ============ 成长值说明 ============ */
.growth-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.growth-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  padding:28px;
}
.growth-list{
  display:grid;
  gap:14px;
  margin-top:22px;
}
.growth-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:14px 16px;
  border-radius:var(--r-sm);
  background:var(--tint);
}
.growth-list .g-icon{
  width:34px;
  height:34px;
  border-radius:9px;
  background:var(--ink);
  color:var(--orange);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  font-size:.875rem;
}
.growth-list strong{
  display:block;
  font-size:.9375rem;
  margin-bottom:2px;
}
.growth-list span{
  font-size:.875rem;
  color:var(--muted);
  display:block;
}
.stat-stack{
  display:grid;
  gap:16px;
}
.stat-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 24px;
  box-shadow:var(--shadow);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.stat-card b{
  display:block;
  font-family:Inter,"DIN Alternate",system-ui,sans-serif;
  font-size:2.4rem;
  font-weight:800;
  line-height:1.05;
  color:var(--ink);
  letter-spacing:-.03em;
}
.stat-card small{
  display:block;
  font-size:.8125rem;
  color:var(--weak);
  letter-spacing:.04em;
  margin-bottom:6px;
}
.stat-card p{
  font-size:.875rem;
  color:var(--muted);
  margin:8px 0 0;
}
.stat-card.accent b{color:var(--orange);}
.stat-card.mint b{color:#22996F;}

/* ============ 等级亮点 ============ */
.highlight-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.highlight-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.highlight-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(255,107,44,.45);
}
.highlight-card .hc-icon{
  width:44px;
  height:44px;
  border-radius:12px;
  background:var(--ink);
  color:var(--mint);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:1.0625rem;
  margin-bottom:16px;
}
.highlight-card h3{
  font-size:1.1875rem;
  margin-bottom:10px;
}
.highlight-card p{
  color:var(--muted);
  font-size:.9375rem;
  margin-bottom:14px;
}
.highlight-card .tagline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.8125rem;
  font-weight:700;
  color:var(--ink);
  background:var(--tint);
  padding:5px 12px;
  border-radius:999px;
}
.highlight-card.wide{
  grid-column:1 / -1;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:28px;
  align-items:center;
  padding:0;
}
.highlight-card.wide .hc-body{padding:30px;}
.highlight-card.wide img{
  width:100%;
  height:100%;
  min-height:240px;
  object-fit:cover;
}

/* ============ FAQ ============ */
.faq-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,2fr);
  gap:40px;
  align-items:start;
}
.faq-aside{
  background:var(--ink);
  color:var(--bg);
  border-radius:var(--r-lg);
  padding:30px;
}
.faq-aside h3{
  color:var(--bg);
  font-size:1.25rem;
  margin-bottom:12px;
}
.faq-aside p{
  color:rgba(244,242,237,.75);
  font-size:.9375rem;
}
.faq-aside ul{
  display:grid;
  gap:12px;
  margin-top:20px;
}
.faq-aside li{
  display:flex;
  gap:10px;
  font-size:.875rem;
  color:rgba(244,242,237,.82);
}
.faq-aside li i{color:var(--orange);margin-top:5px;}
.faq-accordion .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq-accordion .accordion-item:first-of-type{border-top:1px solid var(--line);}
.faq-accordion .accordion-button{
  position:relative;
  background:transparent;
  box-shadow:none;
  border-radius:0 !important;
  padding:22px 46px 22px 20px;
  font-size:1.0625rem;
  font-weight:600;
  color:var(--text);
  transition:color 200ms var(--ease),background 200ms var(--ease);
}
.faq-accordion .accordion-button::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:3px;
  height:24px;
  border-radius:2px;
  background:var(--orange);
  transform:translateY(-50%) scaleY(0);
  transform-origin:center;
  transition:transform 220ms var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--ink);
  font-weight:700;
  background:transparent;
}
.faq-accordion .accordion-button:not(.collapsed)::before{transform:translateY(-50%) scaleY(1);}
.faq-accordion .accordion-button:focus{box-shadow:none;}
.faq-accordion .accordion-button::after{
  position:absolute;
  right:14px;
  width:24px;
  height:24px;
  background-image:none;
  content:"\2b";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:.8125rem;
  line-height:24px;
  text-align:center;
  color:var(--ink);
  background:var(--tint);
  border-radius:50%;
  transition:transform 220ms var(--ease),background 220ms var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
  background:var(--orange);
}
.faq-accordion .accordion-body{
  padding:0 20px 24px;
  max-width:720px;
  color:var(--muted);
  font-size:.9375rem;
  line-height:1.8;
}

/* ============ CTA ============ */
.cta-member{
  position:relative;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  border-radius:0;
  overflow:hidden;
}
.cta-member::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(11,31,28,.86);
}
.cta-member .container{
  position:relative;
  z-index:1;
  padding-top:72px;
  padding-bottom:72px;
  text-align:center;
}
.cta-member h2{
  color:var(--bg);
  font-size:clamp(1.6rem,3vw,2.3rem);
  margin-bottom:14px;
}
.cta-member p{
  color:rgba(244,242,237,.78);
  max-width:62ch;
  margin:0 auto 28px;
}
.cta-actions{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:28px;
}
.cta-tags{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:12px 26px;
  font-size:.875rem;
  color:rgba(244,242,237,.72);
}
.cta-tags span{display:inline-flex;align-items:center;gap:8px;}
.cta-tags i{color:var(--mint);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:var(--bg);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(244,242,237,.14);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}
.footer-brand strong{
  display:block;
  font-size:1.0625rem;
  color:var(--bg);
}
.footer-brand em{
  font-style:normal;
  display:block;
  font-size:.75rem;
  color:rgba(244,242,237,.62);
}
.site-footer p{
  color:rgba(244,242,237,.68);
  font-size:.875rem;
  max-width:44ch;
}
.site-footer h3{
  color:var(--bg);
  font-size:.9375rem;
  font-weight:700;
  margin-bottom:16px;
}
.site-footer ul{display:grid;gap:10px;}
.site-footer li{
  font-size:.875rem;
  color:rgba(244,242,237,.68);
}
.site-footer a{
  color:rgba(244,242,237,.78);
  font-size:.875rem;
}
.site-footer a:hover{color:var(--orange);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 26px;
  font-size:.8125rem;
  color:rgba(244,242,237,.55);
}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:rgba(244,242,237,.8) !important;
}
.to-top:hover{color:var(--orange) !important;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-search{max-width:300px;}
}
@media (max-width:991.98px){
  .nav-search{display:none;}
  .nav-search-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-actions{margin-left:0;}
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .hero-visual{max-width:520px;}
  .growth-grid{grid-template-columns:1fr;}
  .faq-shell{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:64px 0;}
  .compare-table{min-width:640px;}
}
@media (max-width:767.98px){
  .category-hero{min-height:0;}
  .category-hero .container{padding-top:38px;padding-bottom:38px;}
  .hero-visual img{height:180px;}
  .level-item{grid-template-columns:64px minmax(0,1fr);gap:16px;}
  .level-timeline::before{left:31px;}
  .level-item::after{left:24px;top:34px;width:14px;height:14px;}
  .level-num{font-size:2.2rem;}
  .highlight-grid{grid-template-columns:1fr;}
  .highlight-card.wide{grid-template-columns:1fr;}
  .highlight-card.wide img{min-height:180px;order:-1;}
  .compare-table{display:none;}
  .mobile-cards{display:grid;gap:18px;}
  .table-wrap{border:0;box-shadow:none;background:transparent;overflow:visible;}
  .btn-brand{width:100%;}
  .nav-actions .btn-brand{width:auto;padding:11px 16px;font-size:.875rem;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn-brand{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .faq-accordion .accordion-button{font-size:.95rem;padding:18px 42px 18px 16px;}
}
@media (max-width:575.98px){
  .hero-tags{flex-direction:column;gap:10px;align-items:flex-start;}
  .brand-text strong{font-size:1.05rem;}
  .nav-primary-inner{min-height:62px;gap:12px;}
  .stat-card b{font-size:2rem;}
}

.level-card-mobile{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.level-card-mobile .lcm-head{
  background:var(--ink);
  color:var(--bg);
  padding:14px 18px;
  font-weight:700;
  font-size:.9375rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.level-card-mobile .lcm-head span{color:var(--orange);font-size:.8125rem;}
.level-card-mobile dl{
  margin:0;
  padding:6px 18px 14px;
}
.level-card-mobile dt{
  font-size:.8125rem;
  color:var(--weak);
  margin-top:12px;
}
.level-card-mobile dd{
  margin:2px 0 0;
  font-size:.9375rem;
  color:var(--text);
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --ink:#0B1F1C;
  --ink-soft:#123029;
  --orange:#FF6B2C;
  --orange-dark:#E85A1F;
  --mint:#5CE1B8;
  --bg:#F4F2ED;
  --card:#FFFFFF;
  --soft:#EDE9E2;
  --text:#131313;
  --muted:#5A5F5C;
  --faint:#8A8F8C;
  --line:#DCD7CE;
  --line-soft:rgba(19,19,19,.08);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 30px rgba(11,31,28,.06);
  --shadow-hover:0 14px 40px rgba(11,31,28,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:Inter,"DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:1rem;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--orange);}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--ink);}
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:none;box-shadow:0 0 0 3px rgba(255,107,44,.28);border-radius:6px;}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
.container{
  width:100%;
  padding-right:24px;
  padding-left:24px;
  margin-right:auto;
  margin-left:auto;
}
@media (min-width:1400px){.container{max-width:1320px;}}
@media (min-width:1200px) and (max-width:1399.98px){.container{max-width:1200px;}}
@media (min-width:992px) and (max-width:1199.98px){.container{max-width:960px;}}
@media (min-width:768px) and (max-width:991.98px){.container{max-width:720px;}}
@media (max-width:575.98px){.container{padding-right:16px;padding-left:16px;}}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-sm);
  font-size:.95rem;
  font-weight:700;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.btn-brand.primary{background:var(--orange);color:var(--ink);}
.btn-brand.primary:hover{background:var(--orange-dark);color:var(--ink);transform:translateY(-1px);}
.btn-brand.ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-brand.ghost:hover{background:var(--ink);color:var(--bg);}
.btn-brand.outline{background:transparent;border-color:rgba(244,242,237,.7);color:var(--bg);}
.btn-brand.outline:hover{background:var(--bg);color:var(--ink);border-color:var(--bg);}
.btn-brand:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,107,44,.25);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--card);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(11,31,28,.09);}
.nav-primary{border-bottom:1px solid var(--line);background:var(--card);}
.nav-primary-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:70px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  position:relative;
  width:36px;height:36px;
  flex:0 0 36px;
  border-radius:11px;
  background:var(--ink);
}
.brand-mark::before{
  content:"";position:absolute;top:8px;left:8px;
  width:14px;height:14px;border-radius:3px;background:var(--orange);
}
.brand-mark::after{
  content:"";position:absolute;right:8px;bottom:8px;
  width:9px;height:9px;border-radius:50%;background:var(--mint);
}
.brand-text strong{
  display:block;
  font-size:19px;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.2;
  color:var(--ink);
}
.brand-text em{
  display:block;
  font-style:normal;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--faint);
  line-height:1.3;
}
.nav-search{
  position:relative;
  display:flex;
  flex:1 1 auto;
  max-width:480px;
  min-width:0;
}
.nav-search input{
  width:100%;
  height:46px;
  padding:0 54px 0 16px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--card);
  font-size:.92rem;
  color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--faint);}
.nav-search input:focus{
  outline:none;
  border-color:var(--orange);
  box-shadow:0 0 0 3px rgba(255,107,44,.12);
}
.nav-search button{
  position:absolute;
  top:5px;right:5px;bottom:5px;
  width:40px;
  border:0;
  border-radius:8px;
  background:var(--orange);
  color:var(--ink);
  font-size:.9rem;
  cursor:pointer;
  transition:background .2s var(--ease);
}
.nav-search button:hover{background:var(--orange-dark);}
.nav-search-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--card);
  color:var(--ink);
  cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-search-toggle:hover{background:var(--soft);border-color:var(--ink);}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  flex:0 0 auto;
}
.nav-channels{
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.nav-channels-inner{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:50px;
  flex-wrap:nowrap;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-channels-inner::-webkit-scrollbar{display:none;}
.channel{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  font-size:.94rem;
  font-weight:600;
  color:var(--muted);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.channel .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--orange);
  opacity:0;
  transition:opacity .2s var(--ease);
}
.channel:hover{background:var(--soft);color:var(--ink);}
.channel.active{background:var(--ink);color:var(--bg);}
.channel.active .dot{opacity:1;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-head{max-width:780px;margin-bottom:36px;}
.eyebrow{
  display:inline-block;
  padding:5px 12px;
  margin-bottom:14px;
  border-radius:999px;
  background:rgba(255,107,44,.12);
  color:var(--orange-dark);
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.12em;
}
.section-head h2{
  font-size:clamp(1.6rem,3vw,2.4rem);
  line-height:1.2;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.section-head p{color:var(--muted);}

/* ---------- 分类页 Hero ---------- */
.category-hero{
  position:relative;
  padding:60px 0 56px;
  background-image:
    linear-gradient(100deg,rgba(244,242,237,.97) 0%,rgba(244,242,237,.92) 46%,rgba(244,242,237,.74) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  scroll-margin-top:130px;
}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:18px;font-size:.85rem;color:var(--faint);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:var(--line);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--orange);}
.crumb [aria-current="page"]{color:var(--ink);font-weight:600;}
.hero-grid{
  display:grid;
  grid-template-columns:1.65fr .85fr;
  gap:44px;
  align-items:center;
}
.hero-title{
  font-size:clamp(2rem,4.2vw,3.1rem);
  line-height:1.14;
  letter-spacing:-.02em;
  margin-bottom:16px;
  text-wrap:balance;
}
.hero-copy p{
  max-width:640px;
  color:var(--muted);
  margin-bottom:22px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;}
.hero-tags span{
  padding:6px 13px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--card);
  font-size:.85rem;
  color:var(--muted);
}
.hero-side{
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--card);
  box-shadow:var(--shadow);
}
.hero-stat{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
}
.hero-stat:last-of-type{border-bottom:0;}
.hero-stat strong{
  font-family:var(--font-num);
  font-size:1.9rem;
  font-weight:800;
  color:var(--orange);
  line-height:1;
}
.hero-stat span{font-size:.9rem;color:var(--muted);}
.hero-note{
  margin-top:14px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:.88rem;
  line-height:1.7;
  color:var(--faint);
}

/* ---------- 搜索与分类 ---------- */
.faq-tools{padding:64px 0 12px;}
.search-panel{
  padding:28px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--card);
  box-shadow:var(--shadow);
}
.search-panel h2{
  font-size:1.35rem;
  margin-bottom:8px;
}
.search-panel > p{color:var(--muted);font-size:.95rem;}
.faq-search{
  display:flex;
  gap:12px;
  margin:22px 0 18px;
}
.faq-search input{
  flex:1 1 auto;
  min-width:0;
  height:50px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--card);
  font-size:.95rem;
  color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-search input::placeholder{color:var(--faint);}
.faq-search input:focus{
  outline:none;
  border-color:var(--orange);
  box-shadow:0 0 0 3px rgba(255,107,44,.12);
}
.faq-search button{
  flex:0 0 auto;
  height:50px;
  padding:0 24px;
  border:1px solid var(--orange);
  border-radius:var(--radius-sm);
  background:var(--orange);
  color:var(--ink);
  font-size:.95rem;
  font-weight:700;
  cursor:pointer;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.faq-search button:hover{background:var(--orange-dark);border-color:var(--orange-dark);transform:translateY(-1px);}
.faq-pills{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding-bottom:6px;
  scrollbar-width:none;
}
.faq-pills::-webkit-scrollbar{display:none;}
.faq-pill{
  flex:0 0 auto;
  padding:9px 17px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--card);
  color:var(--muted);
  font-size:.9rem;
  font-weight:600;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.faq-pill:hover{border-color:var(--ink);color:var(--ink);}
.faq-pill.active{background:var(--ink);border-color:var(--ink);color:var(--bg);}
.faq-count{
  margin:14px 0 0;
  font-size:.85rem;
  color:var(--faint);
}

/* ---------- FAQ 手风琴 ---------- */
.faq-section{padding:64px 0 88px;}
.faq-accordion .accordion-item{
  margin-bottom:14px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
  overflow:hidden;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.faq-accordion .accordion-item:hover{box-shadow:var(--shadow);border-color:#CFC8BC;}
.faq-accordion .accordion-button{
  position:relative;
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  padding:20px 22px 20px 20px;
  background:transparent;
  color:var(--text);
  font-size:1.05rem;
  font-weight:600;
  line-height:1.5;
  text-align:left;
  border:0;
  border-radius:0;
  box-shadow:none;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-accordion .accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:18px;bottom:18px;
  width:3px;
  border-radius:3px;
  background:var(--orange);
  opacity:0;
  transition:opacity .22s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--ink);
  font-weight:700;
  background:rgba(255,107,44,.05);
}
.faq-accordion .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(255,107,44,.16);border-radius:0;}
.faq-accordion .accordion-button::after{
  content:"+";
  display:flex;
  align-items:center;
  justify-content:center;
  width:30px;height:30px;
  margin-left:auto;
  flex:0 0 30px;
  border:1px solid var(--line);
  border-radius:50%;
  background-image:none!important;
  background-color:transparent;
  color:var(--ink);
  font-size:1.05rem;
  font-weight:700;
  line-height:1;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  content:"−";
  transform:rotate(180deg);
  background-color:var(--ink);
  border-color:var(--ink);
  color:var(--bg);
}
.q-index{
  font-family:var(--font-num);
  font-size:.85rem;
  font-weight:700;
  color:var(--orange);
  letter-spacing:.06em;
  flex:0 0 auto;
}
.faq-accordion .accordion-body{
  max-width:760px;
  padding:0 22px 24px 46px;
  color:var(--muted);
  font-size:.96rem;
  line-height:1.8;
}
.faq-item.is-hidden{display:none;}
.faq-empty{
  margin-top:8px;
  padding:64px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius);
  background:var(--card);
  text-align:center;
  color:var(--faint);
}
.faq-empty i{font-size:1.6rem;color:var(--orange);display:block;margin-bottom:12px;}
.faq-empty strong{display:block;color:var(--ink);font-size:1.05rem;margin-bottom:6px;}

/* ---------- 联系入口 ---------- */
.contact-section{padding:0 0 88px;}
.contact-wrap{
  display:grid;
  grid-template-columns:1fr 1.25fr;
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--card);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.contact-media{position:relative;min-height:320px;}
.contact-media img{width:100%;height:100%;object-fit:cover;}
.contact-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,31,28,.10),rgba(11,31,28,.42));
}
.contact-body{padding:36px 34px;}
.contact-body h2{
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  margin-bottom:12px;
  line-height:1.25;
}
.contact-body > p{color:var(--muted);margin-bottom:22px;}
.contact-list{display:grid;gap:16px;margin-bottom:26px;}
.contact-item{
  padding-left:16px;
  border-left:3px solid var(--soft);
  transition:border-color .22s var(--ease);
}
.contact-item:hover{border-color:var(--orange);}
.contact-item h3{font-size:1.02rem;margin-bottom:6px;}
.contact-item p{font-size:.92rem;color:var(--muted);margin:0;}
.contact-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- CTA ---------- */
.cta-member{
  position:relative;
  padding:96px 0;
  text-align:center;
  color:var(--bg);
  background-image:
    linear-gradient(rgba(11,31,28,.84),rgba(11,31,28,.88)),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.cta-member h2{
  font-size:clamp(1.7rem,3.2vw,2.5rem);
  color:#fff;
  line-height:1.2;
  margin-bottom:16px;
  letter-spacing:-.01em;
}
.cta-member p{
  max-width:660px;
  margin:0 auto 30px;
  color:rgba(244,242,237,.78);
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.cta-tags{
  display:flex;
  flex-wrap:wrap;
  gap:22px;
  justify-content:center;
  margin-top:30px;
  font-size:.88rem;
  color:rgba(244,242,237,.7);
}
.cta-tags span{display:inline-flex;align-items:center;}
.cta-tags span::before{
  content:"";
  width:6px;height:6px;
  margin-right:8px;
  border-radius:50%;
  background:var(--mint);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--bg);
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-footer .brand-mark{background:#F4F2ED;}
.footer-brand strong{display:block;font-size:1.05rem;color:#fff;line-height:1.3;}
.footer-brand em{display:block;font-style:normal;font-size:.78rem;letter-spacing:.08em;color:rgba(244,242,237,.6);}
.site-footer p{color:rgba(244,242,237,.72);font-size:.92rem;line-height:1.8;}
.site-footer h3{font-size:1rem;color:#fff;margin-bottom:16px;font-weight:700;}
.site-footer li{margin-bottom:10px;font-size:.92rem;color:rgba(244,242,237,.72);}
.site-footer a{color:rgba(244,242,237,.78);}
.site-footer a:hover{color:var(--orange);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  align-items:center;
  margin-top:42px;
  padding-top:20px;
  border-top:1px solid rgba(244,242,237,.14);
  font-size:.85rem;
  color:rgba(244,242,237,.6);
}
.to-top{color:var(--orange);display:inline-flex;align-items:center;gap:6px;}
.to-top:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:32px;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:28px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .faq-section{padding:48px 0 64px;}
  .faq-tools{padding:48px 0 8px;}
  .contact-section{padding:0 0 64px;}
  .cta-member{padding:72px 0;}
  .nav-search{display:none;}
  .nav-search-toggle{display:inline-flex;}
  .nav-primary-inner{min-height:64px;gap:12px;}
  .nav-channels-inner{
    min-height:48px;
    -webkit-overflow-scrolling:touch;
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  }
  .hero-grid{grid-template-columns:1fr;}
  .category-hero{padding:48px 0 44px;}
  .contact-wrap{grid-template-columns:1fr;}
  .contact-media{min-height:220px;}
  .contact-body{padding:28px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .nav-actions .ghost{display:none;}
  .faq-search{flex-direction:column;}
  .faq-search button{width:100%;}
  .faq-accordion .accordion-button{font-size:1rem;padding:18px 18px 18px 18px;gap:10px;}
  .faq-accordion .accordion-body{padding:0 18px 20px 40px;font-size:.94rem;}
  .search-panel{padding:20px;}
  .hero-title{font-size:clamp(1.72rem,6.4vw,2.3rem);}
  .btn-brand{width:100%;}
  .contact-actions .btn-brand{width:100%;}
  .cta-actions .btn-brand{width:100%;}
  .cta-tags{gap:14px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .section{padding:48px 0;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .brand-text strong{font-size:17px;}
  .brand-text em{font-size:11px;}
  .hero-stat strong{font-size:1.6rem;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.001ms!important;animation-duration:.001ms!important;}
}