/* roulang page: index */
:root{
  --brand-50:#FFF3EC; --brand-100:#FFE2D2; --brand-300:#FFB183; --brand-500:#FF6A2B; --brand-600:#EA4A0C; --brand-700:#B93706;
  --accent-500:#0FA98E; --accent-50:#E6F7F3;
  --bg:#FFF9F5; --surface:#FFFFFF; --surface-2:#FFF3EC;
  --line:#F0E4DB; --line-strong:#E8DAD0;
  --ink:#1D1712; --ink-2:#5C524A; --ink-3:#8B8078;
  --dark:#17120F; --dark-ink:#F5EFEA; --dark-ink-2:#C9BFB8;
  --brand-grad:linear-gradient(135deg,#FF8A3D 0%,#FF5A2B 48%,#F0306B 100%);
  --r-sm:12px; --r-md:20px; --r-lg:24px; --r-xl:28px; --r-pill:999px;
  --shadow-soft:0 1px 2px rgba(29,23,18,.04),0 8px 24px -8px rgba(29,23,18,.10);
  --shadow-lift:0 18px 40px -12px rgba(234,74,12,.18);
  --shadow-btn:0 8px 20px -6px rgba(234,74,12,.42);
  --shell:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;}
p{margin:0;}
::selection{background:var(--brand-100);color:var(--brand-700);}
:focus-visible{outline:3px solid rgba(255,106,43,.35);outline-offset:2px;border-radius:6px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-thumb{background:var(--brand-100);border-radius:999px;border:2px solid var(--bg);}
::-webkit-scrollbar-thumb:hover{background:var(--brand-300);}

.container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 32px;}}

.nums{font-variant-numeric:tabular-nums;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(29,23,18,.06);}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
@media(min-width:1024px){.header-inner{height:72px;gap:28px;}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:13px;background:var(--brand-grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;
  box-shadow:0 6px 16px -6px rgba(234,74,12,.55);
}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
@media(max-width:1023px){.brand-name{font-size:16px;}}
.main-nav{display:none;}
@media(min-width:1024px){.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:15px;color:var(--ink-2);border-radius:var(--r-pill);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand-grad);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-600);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.search-box{
  display:none;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--surface-2);border:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease;
}
@media(min-width:1280px){.search-box{display:flex;width:250px;}}
.search-box:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(255,106,43,.25);}
.search-box svg{flex-shrink:0;color:var(--ink-3);}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-pill);border:1px solid var(--line-strong);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-600);background:var(--surface-2);}
@media(min-width:1024px){.icon-btn{display:none;}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--shadow-btn);}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 12px 26px -8px rgba(234,74,12,.5);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px -6px rgba(234,74,12,.4);}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-600);background:var(--surface-2);}
.btn-white{background:#fff;color:var(--brand-600);box-shadow:0 10px 24px -10px rgba(23,18,15,.35);}
.btn-white:hover{transform:translateY(-1px);color:var(--brand-700);}
.btn-outline-white{background:transparent;border-color:rgba(255,255,255,.7);color:#fff;}
.btn-outline-white:hover{background:rgba(255,255,255,.14);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn .arw{transition:transform .2s ease;}
.btn:hover .arw{transform:translateX(3px);}
@media(max-width:639px){.btn-block-sm{width:100%;min-height:44px;}}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);}
.link-more:hover .arw{transform:translateX(3px);}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,18,15,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:60;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(84vw,340px);background:#fff;z-index:61;
  transform:translateX(104%);transition:transform .28s cubic-bezier(.2,.7,.3,1);
  padding:22px 20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;
  border-radius:var(--r-sm);font-size:15px;color:var(--ink-2);background:var(--surface-2);
}
.drawer-nav a.active{color:var(--brand-600);font-weight:600;background:var(--brand-50);}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;border-radius:var(--r-sm);border:1px solid var(--line-strong);}
.drawer-search input{border:0;outline:none;background:transparent;width:100%;font-size:14px;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 64px;}
@media(min-width:768px){.hero{padding:72px 0 80px;}}
@media(min-width:1024px){.hero{padding:88px 0 104px;}}
.hero::before{
  content:"";position:absolute;top:-160px;right:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(255,138,61,.30),rgba(240,48,107,.10) 55%,rgba(255,255,255,0) 72%);
  opacity:.16;pointer-events:none;
}
.hero-grid{position:relative;display:grid;gap:40px;align-items:center;}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-50);color:var(--brand-600);font-size:13px;font-weight:600;margin-bottom:20px;
}
.eyebrow .pulse{width:7px;height:7px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 4px rgba(15,169,142,.16);}
h1.hero-title{font-size:clamp(2rem,4.4vw,3.5rem);font-weight:800;letter-spacing:-.02em;line-height:1.15;}
.hero-title .grad{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:var(--ink-2);max-width:34em;}
@media(min-width:768px){.hero-sub{font-size:18px;}}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-stats{
  margin-top:38px;display:grid;grid-template-columns:repeat(2,1fr);gap:22px 0;
  padding-top:26px;border-top:1px solid var(--line);
}
@media(min-width:640px){.hero-stats{grid-template-columns:repeat(4,1fr);}}
.stat{position:relative;padding-left:18px;}
.stat:first-child{padding-left:0;}
@media(min-width:640px){
  .stat{padding-left:20px;border-left:1px solid var(--line);}
  .stat:first-child{padding-left:0;border-left:0;}
}
.stat-num{font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--ink);}
@media(min-width:1024px){.stat-num{font-size:34px;}}
.stat-num span{font-size:14px;font-weight:700;color:var(--brand-600);margin-left:2px;}
.stat-label{margin-top:4px;font-size:13px;color:var(--ink-3);}
.hero-visual{position:relative;}
.hero-visual .photo{
  width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--shadow-lift);
}
.float-card{
  position:absolute;left:-6px;bottom:-18px;background:#fff;border-radius:16px;padding:14px 16px;
  box-shadow:var(--shadow-soft);border:1px solid var(--line);transform:rotate(-2deg);max-width:250px;
}
@media(min-width:1024px){.float-card{left:-26px;bottom:-22px;}}
.float-card .fc-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--accent-500);
  background:var(--accent-50);border-radius:var(--r-pill);padding:3px 10px;
}
.float-card p{margin-top:8px;font-size:13px;color:var(--ink-2);line-height:1.7;}

/* ---------- Sections ---------- */
.section{padding:56px 0;}
@media(min-width:768px){.section{padding:72px 0;}}
@media(min-width:1024px){.section{padding:104px 0;}}
.section-tight{padding:48px 0;}
@media(min-width:1024px){.section-tight{padding:72px 0;}}
.section-head{max-width:720px;margin-bottom:34px;}
@media(min-width:1024px){.section-head{margin-bottom:48px;}}
.section-tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-600);
  background:var(--brand-50);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;
}
h2.section-title{font-size:clamp(1.5rem,2.6vw,2.4rem);font-weight:700;letter-spacing:-.015em;line-height:1.25;}
.section-desc{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:34em;}
.head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px;}
@media(min-width:1024px){.head-row{margin-bottom:44px;}}

/* ---------- Pain cards (asymmetric) ---------- */
.pain-grid{display:grid;gap:20px;}
@media(min-width:768px){.pain-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){
  .pain-grid{grid-template-columns:repeat(3,1fr);grid-template-rows:auto auto;}
  .pain-card.wide{grid-column:span 2;}
}
.pain-card{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;display:flex;flex-direction:column;gap:12px;transition:border-color .22s ease,background .22s ease,transform .22s cubic-bezier(.2,.7,.3,1);
}
.pain-card:hover{background:#fff;border-color:#FFD9C2;transform:translateY(-3px);box-shadow:var(--shadow-soft);}
.pain-no{
  width:36px;height:36px;border-radius:11px;background:#fff;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;color:var(--brand-600);
}
.pain-card h3{font-size:18px;font-weight:700;}
.pain-card p{font-size:14px;color:var(--ink-3);line-height:1.8;}
.pain-card .note{margin-top:auto;font-size:13px;color:var(--brand-600);font-weight:600;}

/* ---------- Steps ---------- */
.steps-wrap{display:grid;gap:32px;}
@media(min-width:1024px){.steps-wrap{grid-template-columns:380px 1fr;gap:56px;align-items:start;}}
.steps-aside{position:static;}
@media(min-width:1024px){.steps-aside{position:sticky;top:104px;}}
.steps-list{position:relative;display:flex;flex-direction:column;gap:26px;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-soft);
}
@media(min-width:768px){.step{padding:28px;}}
.step-head{display:flex;align-items:center;gap:14px;margin-bottom:12px;}
.step-num{
  font-size:26px;font-weight:800;letter-spacing:-.02em;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.step h3{font-size:20px;font-weight:700;}
.step p{font-size:15px;color:var(--ink-2);line-height:1.85;}
.step ul{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.step li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2);line-height:1.8;}
.step li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--accent-500);
}
.step-thumb{margin-top:18px;border-radius:16px;overflow:hidden;aspect-ratio:16/9;}
.step-thumb img{width:100%;height:100%;object-fit:cover;}
.step-sep{height:1px;border-top:1px dashed var(--line-strong);margin:2px 0;}

/* ---------- Dark results ---------- */
.dark-panel{
  background:var(--dark);border-radius:var(--r-xl);padding:36px 24px;position:relative;overflow:hidden;
  color:var(--dark-ink);
}
@media(min-width:768px){.dark-panel{padding:52px 44px;}}
@media(min-width:1024px){.dark-panel{padding:64px 56px;}}
.dark-panel::after{
  content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.22),rgba(240,48,107,0) 70%);pointer-events:none;
}
.dark-panel h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:700;letter-spacing:-.015em;}
.dark-panel .lead{margin-top:14px;font-size:15px;color:var(--dark-ink-2);max-width:34em;line-height:1.85;}
.metric-grid{position:relative;margin-top:36px;display:grid;grid-template-columns:repeat(2,1fr);gap:24px 18px;}
@media(min-width:768px){.metric-grid{grid-template-columns:repeat(3,1fr);}}
@media(min-width:1024px){.metric-grid{grid-template-columns:repeat(5,1fr);gap:28px;}}
.metric-num{
  font-size:30px;font-weight:800;letter-spacing:-.02em;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
@media(min-width:1024px){.metric-num{font-size:34px;}}
.metric-label{margin-top:6px;font-size:13px;color:var(--dark-ink-2);}
.bars{position:relative;margin-top:40px;display:flex;flex-direction:column;gap:20px;max-width:760px;}
.bar-row{display:flex;flex-direction:column;gap:8px;}
.bar-top{display:flex;justify-content:space-between;font-size:13px;color:var(--dark-ink-2);}
.bar-track{height:8px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;}
.bar-fill.brand{background:var(--brand-grad);}
.bar-fill.accent{background:linear-gradient(90deg,#0FA98E,#5FD3B8);}

/* ---------- Filters + posts ---------- */
.filter-bar{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;margin-bottom:26px;-webkit-overflow-scrolling:touch;}
.filter-bar::-webkit-scrollbar{height:0;}
.chip{
  flex:0 0 auto;height:36px;padding:0 16px;display:inline-flex;align-items:center;border-radius:var(--r-pill);
  font-size:14px;color:var(--ink-2);background:#fff;border:1px solid var(--line-strong);
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-600);}
.chip.active{background:var(--brand-grad);border-color:transparent;color:#fff;font-weight:600;}

.post-grid{display:grid;gap:22px;}
@media(min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--shadow-soft);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:#FFD9C2;}
.post-cover{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-tag{
  position:absolute;left:12px;top:12px;padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:#fff;background:rgba(23,18,15,.58);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:17px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body h3 a:hover{color:var(--brand-600);}
.post-body p{font-size:14px;color:var(--ink-3);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);padding-top:6px;}
.dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}
.post-meta .go{margin-left:auto;color:var(--brand-600);font-weight:600;}

.empty-state{
  background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-md);
  padding:48px 24px;text-align:center;color:var(--ink-3);
}
.empty-state svg{margin:0 auto 12px;color:var(--ink-3);opacity:.6;}
.empty-state h3{font-size:16px;font-weight:700;color:var(--ink-2);}
.empty-state p{margin-top:8px;font-size:14px;}
.empty-state .btn{margin-top:18px;}

/* ---------- Voices ---------- */
.voices{display:grid;gap:20px;}
@media(min-width:1024px){.voices{grid-template-columns:repeat(3,1fr);gap:24px;}}
.voice-card{
  border-radius:var(--r-lg);padding:26px;border:1px solid var(--line);
  display:flex;flex-direction:column;gap:16px;min-width:0;
}
.voice-card.alt{background:var(--surface-2);}
.voice-card.plain{background:#fff;box-shadow:var(--shadow-soft);}
.voice-quote{font-size:34px;line-height:1;color:var(--brand-300);font-weight:800;}
.voice-card p{font-size:15px;color:var(--ink-2);line-height:1.85;}
.voice-person{display:flex;align-items:center;gap:12px;margin-top:auto;}
.avatar{
  width:44px;height:44px;border-radius:14px;background:var(--brand-grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px;flex-shrink:0;
}
.voice-name{font-size:15px;font-weight:700;}
.voice-role{font-size:13px;color:var(--ink-3);}
.voice-tail{font-size:13px;font-weight:600;color:var(--accent-500);border-top:1px solid var(--line);padding-top:12px;}
@media(max-width:1023px){
  .voices{grid-auto-flow:column;grid-auto-columns:82%;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;}
  .voice-card{scroll-snap-align:start;}
  .voices::-webkit-scrollbar{height:0;}
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item[open]{border-color:#FFD9C2;box-shadow:var(--shadow-soft);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  margin-left:auto;flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;
  color:var(--brand-600);font-size:16px;font-weight:700;transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item[open] summary .plus{transform:rotate(180deg);background:var(--brand-grad);color:#fff;border-color:transparent;}
.faq-body{padding:0 20px 20px;font-size:15px;color:var(--ink-2);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-grad);border-radius:var(--r-xl);padding:34px 24px;color:#fff;position:relative;overflow:hidden;
  display:flex;flex-direction:column;gap:22px;
}
@media(min-width:1024px){.cta-band{padding:48px 54px;flex-direction:row;align-items:center;justify-content:space-between;gap:40px;}}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2.1rem);font-weight:700;letter-spacing:-.015em;color:#fff;}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.88);max-width:34em;}
.cta-line{position:absolute;left:0;right:0;top:0;height:2px;background:rgba(255,255,255,.35);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:var(--dark-ink-2);margin-top:40px;border-radius:var(--r-xl) var(--r-xl) 0 0;padding:56px 0 0;}
.footer-grid{display:grid;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-brandline{display:flex;align-items:center;gap:10px;}
.footer-brandline .brand-name{color:#fff;}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:var(--dark-ink-2);max-width:26em;}
.footer-contact{margin-top:16px;font-size:14px;line-height:2;color:var(--dark-ink-2);}
.footer-contact span{color:#fff;font-weight:600;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--dark-ink-2);display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-badge{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);font-size:13px;color:var(--dark-ink-2);margin-bottom:12px;
}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;justify-content:space-between;font-size:13px;color:var(--dark-ink-2);
}
.footer-bottom a{color:var(--dark-ink-2);}
.footer-bottom a:hover{color:#fff;}

/* ---------- Motion ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .4s ease,transform .4s ease;}
.reveal.in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation:none !important;transition-duration:.01ms !important;}
}

/* roulang page: category1 */
:root{
  --brand-50:#FFF3EC; --brand-100:#FFE2D2; --brand-300:#FFB183;
  --brand-500:#FF6A2B; --brand-600:#EA4A0C; --brand-700:#B93706;
  --accent-500:#0FA98E; --accent-50:#E6F7F3;
  --bg:#FFF9F5; --surface:#FFFFFF; --surface-2:#FFF3EC;
  --line:#F0E4DB; --line-strong:#E8DAD0; --line-hover:#FFD9C2;
  --ink:#1D1712; --ink-2:#5C524A; --ink-3:#8B8078;
  --dark:#17120F; --dark-text:#F5EFEA; --dark-text-2:#C9BFB8;
  --grad:linear-gradient(135deg,#FF8A3D 0%,#FF5A2B 48%,#F0306B 100%);
  --r-card:20px; --r-lg:24px; --r-xl:28px; --r-pill:999px; --r-field:12px;
  --shadow-soft:0 1px 2px rgba(29,23,18,.04),0 8px 24px -8px rgba(29,23,18,.10);
  --shadow-lift:0 18px 40px -12px rgba(234,74,12,.18);
  --shadow-btn:0 8px 20px -6px rgba(234,74,12,.42);
  --shell:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;line-height:1.85;letter-spacing:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,summary{font:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,106,43,.35);border-radius:8px;}
::selection{background:var(--brand-100);color:var(--brand-700);}
*::-webkit-scrollbar{width:10px;height:10px;}
*::-webkit-scrollbar-track{background:var(--surface-2);}
*::-webkit-scrollbar-thumb{background:#F3C7AF;border-radius:999px;border:2px solid var(--surface-2);}
*::-webkit-scrollbar-thumb:hover{background:var(--brand-300);}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.scrolled{box-shadow:0 4px 16px rgba(29,23,18,.06);}
.header-inner{display:flex;align-items:center;gap:26px;height:64px;}
@media (min-width:1024px){.header-inner{height:72px;}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;line-height:1;flex-shrink:0;}
.brand-name{font-size:16px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;}
@media (min-width:1024px){.brand-name{font-size:17px;}}
.main-nav{display:none;align-items:center;gap:24px;margin-left:auto;}
@media (min-width:1024px){.main-nav{display:flex;}}
.nav-link{position:relative;display:inline-block;font-size:15px;color:var(--ink-2);padding:6px 2px;transition:color .2s ease;white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;border-radius:2px;background:var(--brand-600);transition:width .2s ease;}
.nav-link:hover{color:var(--brand-600);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--brand-600);font-weight:600;}
.nav-link.active::after{width:100%;}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
@media (min-width:1024px){.header-actions{margin-left:0;}}
.nav-search{display:none;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:var(--r-pill);background:var(--surface-2);border:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease;}
@media (min-width:768px){.nav-search{display:flex;width:210px;}}
@media (min-width:1280px){.nav-search{width:250px;}}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(255,106,43,.25);}
.nav-search svg{width:16px;height:16px;stroke:var(--ink-3);flex-shrink:0;}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-toggle{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:#fff;cursor:pointer;transition:border-color .2s ease,background .2s ease;}
.nav-toggle:hover{border-color:var(--brand-300);background:var(--surface-2);}
@media (min-width:1024px){.nav-toggle{display:none;}}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.drawer-mask{position:fixed;inset:0;background:rgba(23,18,15,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:60;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;height:100%;width:min(360px,86vw);background:#fff;z-index:70;transform:translateX(100%);transition:transform .3s cubic-bezier(.2,.7,.3,1);padding:22px 22px 32px;overflow-y:auto;display:flex;flex-direction:column;gap:18px;}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:#fff;cursor:pointer;color:var(--ink-2);font-size:20px;line-height:1;}
.drawer-close:hover{border-color:var(--brand-300);color:var(--brand-600);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-2);}
.drawer-nav a.active{color:var(--brand-600);font-weight:700;}
.drawer-search{display:flex;align-items:center;gap:8px;height:48px;padding:0 14px;border-radius:var(--r-field);background:var(--surface-2);border:1px solid var(--line-strong);}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:15px;}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-btn);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px -6px rgba(234,74,12,.4);}
.btn-outline{background:#fff;border-color:var(--line-strong);color:var(--ink);}
.btn-outline:hover{border-color:var(--brand-300);color:var(--brand-600);background:var(--surface-2);}
.btn-white{background:#fff;color:var(--brand-600);}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 10px 24px -10px rgba(23,18,15,.45);}
.btn-ghost-white{background:transparent;border-color:rgba(255,255,255,.75);color:#fff;}
.btn-ghost-white:hover{background:rgba(255,255,255,.14);}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}
.btn .arrow{transition:transform .2s ease;}
.btn:hover .arrow{transform:translateX(3px);}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:15px;}
.link-more .arrow{transition:transform .2s ease;}
.link-more:hover .arrow{transform:translateX(3px);}

/* ============ 面包屑 ============ */
.breadcrumb{padding:22px 0 0;font-size:13px;color:var(--ink-3);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{content:"›";color:var(--line-strong);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .current{color:var(--ink-2);}

/* ============ 分类页头 ============ */
.page-hero{position:relative;overflow:hidden;padding:36px 0 0;}
.page-hero::before{content:"";position:absolute;top:-180px;right:-140px;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle at center,rgba(255,106,43,.18),rgba(240,48,107,.10) 45%,transparent 70%);pointer-events:none;}
.page-hero-grid{position:relative;display:grid;gap:32px;padding:34px 0 52px;align-items:center;}
@media (min-width:1024px){.page-hero-grid{grid-template-columns:7fr 5fr;gap:52px;padding:48px 0 68px;}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);background:var(--brand-50);color:var(--brand-700);font-size:13px;font-weight:600;border:1px solid var(--brand-100);}
.page-hero h1{margin-top:18px;font-size:clamp(2rem,4.4vw,3.4rem);line-height:1.15;font-weight:800;letter-spacing:-.02em;}
.page-hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.page-hero-lead{margin-top:18px;max-width:34em;font-size:17px;color:var(--ink-2);}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
@media (max-width:520px){.hero-cta .btn{width:100%;}}
.page-hero-media{position:relative;}
.page-hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-soft);}
.page-hero-media::after{content:"";position:absolute;inset:0;border-radius:var(--r-lg);background:linear-gradient(180deg,rgba(23,18,15,.05),rgba(23,18,15,.32));pointer-events:none;}
.media-tag{position:absolute;left:16px;bottom:16px;z-index:2;display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.86);backdrop-filter:blur(8px);font-size:13px;font-weight:600;color:var(--ink);}

/* ============ 胶囊子导航 ============ */
.subnav-wrap{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;}
.subnav{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none;}
.subnav::-webkit-scrollbar{display:none;}
.pill{flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:var(--r-pill);border:1px solid var(--line-strong);color:var(--ink-2);font-size:14px;transition:all .2s ease;white-space:nowrap;}
.pill:hover{border-color:var(--brand-300);color:var(--brand-600);background:var(--surface-2);}
.pill.active{background:var(--grad);border-color:transparent;color:#fff;font-weight:600;box-shadow:var(--shadow-btn);}

/* ============ 图文交替流 ============ */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-head{max-width:34em;}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.3rem);line-height:1.25;font-weight:700;letter-spacing:-.015em;}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}

.alt-stream{display:flex;flex-direction:column;}
.alt-row{display:grid;gap:28px;padding:44px 0;border-bottom:1px solid var(--line);align-items:center;}
.alt-row:first-child{padding-top:8px;}
.alt-row:last-child{border-bottom:0;padding-bottom:8px;}
@media (min-width:1024px){
  .alt-row{grid-template-columns:1fr 1fr;gap:56px;padding:64px 0;}
  .alt-row.reverse .alt-text{order:2;}
  .alt-row.reverse .alt-media{order:1;}
}
.alt-index{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:14px;background:var(--surface-2);color:var(--brand-600);font-weight:800;font-size:16px;letter-spacing:.02em;}
.alt-text h2{margin-top:16px;font-size:clamp(1.4rem,2.2vw,1.9rem);line-height:1.3;font-weight:700;}
.alt-text p{margin-top:14px;color:var(--ink-2);}
.point-list{margin-top:22px;display:flex;flex-direction:column;}
.point-list li{display:flex;gap:12px;padding:12px 0;border-top:1px dashed var(--line);font-size:15.5px;color:var(--ink-2);line-height:1.8;}
.point-list li:first-child{border-top:0;}
.point-list .dot{margin-top:9px;width:8px;height:8px;border-radius:50%;background:var(--grad);flex-shrink:0;}
.alt-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--shadow-soft);}
.alt-media figcaption{margin-top:12px;font-size:13px;color:var(--ink-3);}

/* ============ 数据带 ============ */
.metrics{background:var(--surface-2);border-radius:var(--r-xl);padding:34px 24px;display:grid;gap:24px;}
@media (min-width:640px){.metrics{grid-template-columns:repeat(2,1fr);padding:38px 32px;}}
@media (min-width:1024px){.metrics{grid-template-columns:repeat(4,1fr);gap:28px;padding:44px 40px;}}
.metric{position:relative;padding-left:0;}
@media (min-width:1024px){.metric + .metric::before{content:"";position:absolute;left:-14px;top:6px;bottom:6px;width:1px;background:var(--line-strong);}}
.metric .num{display:block;font-size:32px;font-weight:800;line-height:1.1;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.metric .unit{font-size:14px;font-weight:700;color:var(--brand-600);margin-left:4px;-webkit-text-fill-color:var(--brand-600);}
.metric .label{display:block;margin-top:8px;font-size:13.5px;color:var(--ink-3);}

/* ============ 提示条 ============ */
.notice-band{display:grid;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;box-shadow:var(--shadow-soft);}
@media (min-width:1024px){.notice-band{grid-template-columns:1.35fr 1fr;padding:36px 40px;gap:40px;}}
.notice-band h2{font-size:clamp(1.35rem,2vw,1.8rem);font-weight:700;line-height:1.3;}
.notice-band p{margin-top:12px;color:var(--ink-2);font-size:16px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{display:inline-flex;align-items:center;padding:7px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:600;}
.tag-solid{background:var(--grad);color:#fff;}
.tag-soft{background:var(--brand-50);color:var(--brand-700);border:1px solid var(--brand-100);}
.tag-line{border:1px solid var(--brand-100);color:var(--ink-2);}
.tag-accent{background:var(--accent-50);color:var(--accent-500);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px;}
.faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-soft);overflow:hidden;transition:border-color .2s ease;}
.faq-item[open]{border-color:var(--line-hover);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:16.5px;font-weight:600;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{position:relative;flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--surface-2);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);border-radius:2px;transform:translate(-50%,-50%);}
.faq-icon::before{width:11px;height:2px;}
.faq-icon::after{width:2px;height:11px;transition:transform .22s ease,opacity .22s ease;}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-answer{padding:0 22px 20px;color:var(--ink-2);font-size:15.5px;line-height:1.85;}

/* ============ CTA 带 ============ */
.cta-band{position:relative;overflow:hidden;background:var(--grad);border-radius:var(--r-xl);padding:38px 26px;color:#fff;display:grid;gap:24px;align-items:center;}
@media (min-width:1024px){.cta-band{grid-template-columns:1.4fr 1fr;padding:52px 48px;gap:40px;}}
.cta-band::after{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:rgba(255,255,255,.45);}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2.1rem);line-height:1.28;font-weight:800;letter-spacing:-.01em;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.9);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:520px){.cta-actions .btn{width:100%;}}

/* ============ 页脚 ============ */
.site-footer{margin-top:64px;background:var(--dark);color:var(--dark-text);border-radius:28px 28px 0 0;padding:52px 0 26px;position:relative;}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--grad);border-radius:28px 28px 0 0;opacity:.85;}
.footer-grid{display:grid;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}}
.footer-brandline{display:flex;align-items:center;gap:10px;}
.footer-brandline .brand-mark{width:34px;height:34px;border-radius:11px;}
.footer-brandline .brand-name{color:#fff;font-size:17px;font-weight:800;}
.footer-about{margin-top:16px;color:var(--dark-text-2);font-size:14px;line-height:1.8;max-width:30em;}
.footer-contact{margin-top:18px;color:var(--dark-text-2);font-size:14px;line-height:2;}
.footer-contact span{color:#fff;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--dark-text-2);transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-badge{display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#fff;font-size:13px;margin-bottom:16px;}
.footer-bottom{margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;font-size:13px;color:var(--dark-text-2);}
.footer-bottom a{color:var(--dark-text-2);}
.footer-bottom a:hover{color:#fff;}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .4s ease,transform .4s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  *{animation:none !important;}
}

/* roulang page: article */
:root{
  --brand-50:#FFF3EC; --brand-100:#FFE2D2; --brand-300:#FFB183; --brand-500:#FF6A2B;
  --brand-600:#EA4A0C; --brand-700:#B93706;
  --accent-500:#0FA98E; --accent-50:#E6F7F3;
  --brand-grad:linear-gradient(135deg,#FF8A3D 0%,#FF5A2B 48%,#F0306B 100%);
  --bg:#FFF9F5; --surface:#FFFFFF; --surface-2:#FFF3EC;
  --line:#F0E4DB; --line-strong:#E8DAD0;
  --ink:#1D1712; --ink-2:#5C524A; --ink-3:#8B8078;
  --dark:#17120F; --dark-2:#F5EFEA; --dark-3:#C9BFB8;
  --r-card:20px; --r-big:24px; --r-pill:999px; --r-input:12px;
  --shadow-soft:0 1px 2px rgba(29,23,18,.04), 0 8px 24px -8px rgba(29,23,18,.10);
  --shadow-lift:0 18px 40px -12px rgba(234,74,12,.18);
  --shadow-btn:0 8px 20px -6px rgba(234,74,12,.42);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.015em;color:var(--ink);}
p{margin:0 0 1.15em;}
ul,ol{margin:0;padding:0;}
::selection{background:var(--brand-100);color:var(--brand-700);}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,106,43,.35);border-radius:8px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-thumb{background:#EFDCCF;border-radius:999px;border:2px solid var(--bg);}
::-webkit-scrollbar-track{background:transparent;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease,background .25s ease;
  backdrop-filter:saturate(160%) blur(8px);
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(29,23,18,.06);}
.header-inner{display:flex;align-items:center;gap:18px;height:64px;}
@media (min-width:1024px){.header-inner{height:72px;gap:26px;}}
.brand{display:flex;align-items:center;gap:10px;min-width:0;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:14px;background:var(--brand-grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:800;
  box-shadow:0 6px 16px -6px rgba(234,74,12,.55);flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-name{font-size:16px;font-weight:800;color:var(--ink);white-space:nowrap;}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.02em;}
@media (min-width:1024px){
  .brand-mark{width:40px;height:40px;}
  .brand-name{font-size:17.5px;}
  .brand-sub{font-size:12px;}
}
.main-nav{display:none;}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:6px;margin-left:14px;}
}
.nav-link{
  position:relative;padding:10px 12px;font-size:15px;color:var(--ink-2);
  border-radius:999px;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:999px;
  background:var(--brand-grad);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-600);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{display:none;position:relative;}
@media (min-width:1280px){.nav-search{display:block;}}
.nav-search input{
  width:236px;height:40px;border-radius:999px;border:1px solid transparent;background:var(--surface-2);
  padding:0 16px 0 38px;font-size:14px;transition:border-color .2s ease,box-shadow .2s ease,width .2s ease;
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(255,106,43,.25);outline:none;width:268px;}
.nav-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--ink-3);}
.nav-toggle{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line-strong);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--ink-2);
}
.nav-toggle:hover{border-color:var(--brand-300);color:var(--brand-600);}
@media (min-width:1024px){.nav-toggle{display:none;}}
.header-cta{display:none;}
@media (min-width:640px){.header-cta{display:inline-flex;}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;line-height:1;
  min-height:44px;border:1px solid transparent;transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px;}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--shadow-btn);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px -6px rgba(234,74,12,.42);}
.btn-secondary{background:#fff;border-color:var(--line-strong);color:var(--ink);}
.btn-secondary:hover{border-color:var(--brand-500);color:var(--brand-600);background:var(--surface-2);}
.btn-white{background:#fff;color:var(--brand-600);box-shadow:0 10px 24px -12px rgba(23,18,15,.45);}
.btn-white:hover{transform:translateY(-1px);}
.btn-outline-white{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.btn-outline-white:hover{background:rgba(255,255,255,.14);}
.btn-text{color:var(--brand-600);font-weight:600;display:inline-flex;align-items:center;gap:6px;padding:6px 0;}
.btn-text svg{transition:transform .2s ease;}
.btn-text:hover svg{transform:translateX(3px);}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,18,15,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(340px,88vw);background:#fff;z-index:80;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--line);padding-top:14px;}
.drawer-nav a{
  padding:14px 12px;border-radius:14px;font-size:16px;color:var(--ink-2);
  display:flex;align-items:center;justify-content:space-between;min-height:48px;
}
.drawer-nav a:hover{background:var(--surface-2);color:var(--brand-600);}
.drawer-nav a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600;}
.drawer-search{position:relative;margin:16px 0 6px;}
.drawer-search input{
  width:100%;height:46px;border-radius:999px;border:1px solid var(--line-strong);background:var(--surface-2);
  padding:0 16px 0 40px;font-size:14px;
}
.drawer-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--ink-3);}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);}

/* ---------- Breadcrumb ---------- */
.breadcrumb{padding:22px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:13px;color:var(--ink-3);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--line-strong);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb li[aria-current] span,.breadcrumb li[aria-current]{color:var(--ink-2);}

/* ---------- Article head ---------- */
.article-hero{position:relative;overflow:hidden;padding-bottom:8px;}
.article-hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.16),rgba(255,106,43,0) 68%);pointer-events:none;
}
.article-head{position:relative;max-width:760px;padding:12px 0 40px;}
.article-title{
  font-size:clamp(1.85rem,3.6vw,2.6rem);line-height:1.22;font-weight:800;letter-spacing:-.02em;
  margin:18px 0 16px;max-width:22em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13px;color:var(--ink-3);}
.article-meta .dot{width:1px;height:12px;background:var(--line-strong);display:none;}
@media (min-width:640px){.article-meta .dot{display:inline-block;}}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.badge-soft{background:var(--brand-50);color:var(--brand-600);}
.badge-outline{border:1px solid var(--brand-100);color:var(--ink-2);background:#fff;}
.badge-accent{background:var(--accent-50);color:var(--accent-500);}
.badge-solid{background:var(--brand-grad);color:#fff;}

/* ---------- Layout ---------- */
.article-section{padding:8px 0 56px;}
@media (min-width:1024px){.article-section{padding:8px 0 88px;}}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,760px) 260px;gap:60px;align-items:start;}
}
.article-panel{min-width:0;}
.article-cover{margin:0 0 28px;}
.article-cover img{
  width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);box-shadow:var(--shadow-soft);
}
.article-cover figcaption{font-size:13px;color:var(--ink-3);margin-top:10px;}

/* ---------- Article body ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--ink-2);max-width:760px;}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:700;color:var(--ink);
  margin:38px 0 14px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:999px;background:var(--brand-grad);
}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);margin:28px 0 10px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:22px 0 8px;}
.article-body p{margin:0 0 1.15em;}
.article-body a{color:var(--brand-600);border-bottom:1px solid var(--brand-100);}
.article-body a:hover{border-bottom-color:var(--brand-600);}
.article-body strong{color:var(--ink);font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-body ul li,.article-body ol li{margin:6px 0;line-height:1.9;}
.article-body ul li::marker{color:var(--brand-500);}
.article-body ol li::marker{color:var(--brand-500);font-weight:700;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--surface-2);border-left:4px solid var(--brand-500);
  border-radius:0 12px 12px 0;color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:22px auto;box-shadow:var(--shadow-soft);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;background:#fff;
  border:1px solid var(--line);border-radius:16px;overflow:hidden;display:block;
}
@media (min-width:768px){.article-body table{display:table;}}
.article-body thead th{background:var(--surface-2);color:var(--ink);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FFFCFA;}
.article-body pre{
  background:#1F1913;color:#F5EFEA;border-radius:16px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.8;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.94em;}
.article-body p code,.article-body li code{background:var(--surface-2);color:var(--brand-700);padding:2px 6px;border-radius:6px;}
.article-body hr{border:0;border-top:1px dashed var(--line-strong);margin:32px 0;}
.article-body .table-wrap{overflow-x:auto;}

/* ---------- Tags / share ---------- */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;padding-top:24px;border-top:1px solid var(--line);}
.article-share{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;
  padding:16px 18px;background:var(--surface-2);border-radius:16px;font-size:13px;color:var(--ink-3);
}
.share-btn{
  display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:999px;background:#fff;
  border:1px solid var(--line);font-size:13px;color:var(--ink-2);min-height:40px;
}
.share-btn:hover{border-color:var(--brand-300);color:var(--brand-600);}

/* ---------- Prev / next ---------- */
.post-nav{display:grid;gap:14px;margin-top:26px;}
@media (min-width:768px){.post-nav{grid-template-columns:1fr 1fr;}}
.post-link{
  display:flex;flex-direction:column;gap:6px;padding:18px 20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-soft);transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,border-color .22s ease;
}
.post-link:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:#FFD9C2;}
.post-link span{font-size:12.5px;color:var(--ink-3);}
.post-link strong{font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.5;}

/* ---------- Empty state ---------- */
.empty-state{
  background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-big);
  padding:52px 24px;text-align:center;box-shadow:var(--shadow-soft);
}
.empty-state .icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:18px;background:var(--surface-2);
  display:flex;align-items:center;justify-content:center;color:var(--ink-3);
}
.empty-state h2{font-size:18px;font-weight:700;margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--ink-3);margin-bottom:20px;}

/* ---------- Aside ---------- */
.article-aside{display:flex;flex-direction:column;gap:18px;}
@media (min-width:1024px){.article-aside{position:sticky;top:96px;}}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px 18px 20px;box-shadow:var(--shadow-soft);
}
.aside-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.aside-title::before{content:"";width:4px;height:16px;border-radius:999px;background:var(--brand-grad);}
.toc{list-style:none;display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:block;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--ink-2);
  border-left:2px solid transparent;transition:background .2s ease,color .2s ease;
}
.toc a:hover{background:var(--surface-2);color:var(--brand-600);}
.toc a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600;}
.hot-list{list-style:none;display:flex;flex-direction:column;gap:2px;}
.hot-list a{
  display:flex;gap:10px;padding:10px 8px;border-radius:12px;font-size:14px;color:var(--ink-2);line-height:1.6;
}
.hot-list a:hover{background:var(--surface-2);color:var(--brand-600);}
.hot-list .idx{
  flex-shrink:0;width:20px;height:20px;border-radius:6px;background:var(--surface-2);color:var(--brand-600);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.aside-cta{background:var(--dark);color:var(--dark-2);border:0;}
.aside-cta h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:8px;}
.aside-cta p{font-size:13px;color:var(--dark-3);margin-bottom:14px;line-height:1.75;}
.aside-cta .btn{width:100%;}

/* ---------- Related ---------- */
.related-section{padding:56px 0;}
@media (min-width:1024px){.related-section{padding:80px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.4rem,2.2vw,1.9rem);font-weight:700;}
.section-head p{font-size:14px;color:var(--ink-3);margin:6px 0 0;max-width:44em;}
.card-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:#FFD9C2;}
.post-card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.post-card-media img{width:100%;height:100%;object-fit:cover;}
.post-card-media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.82);color:var(--brand-600);backdrop-filter:blur(8px);}
.post-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card-body h3{font-size:17.5px;font-weight:700;line-height:1.5;}
.post-card-body h3 a:hover{color:var(--brand-600);}
.post-card-body p{font-size:14px;color:var(--ink-3);line-height:1.75;margin:0;}
.post-card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-3);}

/* ---------- CTA band ---------- */
.cta-band{padding:0 0 64px;}
@media (min-width:1024px){.cta-band{padding:0 0 96px;}}
.cta-card{
  position:relative;overflow:hidden;background:var(--brand-grad);border-radius:28px;padding:36px 28px;
  display:flex;flex-direction:column;gap:24px;box-shadow:var(--shadow-lift);
}
@media (min-width:1024px){.cta-card{padding:52px 56px;flex-direction:row;align-items:center;justify-content:space-between;gap:48px;}}
.cta-card h2{color:#fff;font-size:clamp(1.4rem,2.4vw,2rem);line-height:1.3;font-weight:700;}
.cta-card p{color:rgba(255,255,255,.9);font-size:15px;margin:10px 0 0;}
.cta-line{position:absolute;left:0;right:0;top:0;height:1px;background:rgba(255,255,255,.35);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-actions .btn{min-width:160px;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--dark);color:var(--dark-3);border-radius:28px 28px 0 0;margin-top:20px;
  padding:52px 0 26px;position:relative;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand-grad);border-radius:28px 28px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;}}
.footer-brandline{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brandline .brand-mark{width:38px;height:38px;border-radius:14px;}
.footer-brandline .brand-name{font-size:16.5px;font-weight:800;color:#fff;}
.footer-about{font-size:14px;line-height:1.8;color:var(--dark-3);margin:0 0 14px;max-width:24em;}
.footer-contact{font-size:13.5px;line-height:1.95;color:var(--dark-3);}
.footer-contact span{color:#fff;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 14px;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--dark-3);transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-badge{
  display:inline-block;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.08);
  color:#fff;font-size:12.5px;margin-bottom:14px;
}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:#9C928B;justify-content:space-between;
}
.footer-bottom a{color:#C9BFB8;}
.footer-bottom a:hover{color:#fff;}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .4s ease,transform .4s ease;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --brand-50:#FFF3EC; --brand-100:#FFE2D2; --brand-300:#FFB183;
  --brand-500:#FF6A2B; --brand-600:#EA4A0C; --brand-700:#B93706;
  --accent-50:#E6F7F3; --accent-500:#0FA98E;
  --bg:#FFF9F5; --surface:#FFFFFF; --surface-2:#FFF3EC;
  --line:#F0E4DB; --line-strong:#E8DAD0;
  --ink:#1D1712; --ink-2:#5C524A; --ink-3:#8B8078;
  --dark:#17120F; --dark-ink:#F5EFEA; --dark-ink-2:#C9BFB8;
  --grad:linear-gradient(135deg,#FF8A3D 0%,#FF5A2B 48%,#F0306B 100%);
  --shadow-soft:0 1px 2px rgba(29,23,18,.04), 0 8px 24px -8px rgba(29,23,18,.10);
  --shadow-lift:0 18px 40px -12px rgba(234,74,12,.18);
  --shadow-btn:0 8px 20px -6px rgba(234,74,12,.42);
  --r-card:20px; --r-big:24px; --r-pill:999px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg); color:var(--ink);
  font-size:16px; line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,106,43,.35);border-radius:8px}
::selection{background:var(--brand-100);color:var(--brand-700)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--surface-2)}
::-webkit-scrollbar-thumb{background:var(--brand-300);border-radius:999px;border:3px solid var(--surface-2)}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-600);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:200}
.skip-link:focus{left:0}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease, background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(29,23,18,.06)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
@media (min-width:1024px){.header-inner{height:72px}}

.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:17px;letter-spacing:-.02em;
  box-shadow:0 6px 16px -6px rgba(234,74,12,.55);
}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
@media (max-width:1024px){.brand-name{font-size:15px;max-width:150px;overflow:hidden;text-overflow:ellipsis}}

.main-nav{display:none;align-items:center;gap:4px;margin-left:8px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;font-size:15px;color:var(--ink-2);
  border-radius:10px;transition:color .2s ease, background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:999px;background:var(--brand-500);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-50)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-600);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-search{display:none;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:var(--r-pill);background:var(--surface-2);border:1px solid transparent;transition:border-color .2s ease, box-shadow .2s ease}
@media (min-width:1024px){.nav-search{display:flex}}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(255,106,43,.25)}
.nav-search svg{width:16px;height:16px;color:var(--ink-3);flex-shrink:0}
.nav-search input{
  border:none;background:transparent;outline:none;font-size:14px;color:var(--ink);width:150px;
}
.nav-search input::placeholder{color:var(--ink-3)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .2s cubic-bezier(.2,.7,.3,1), box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space:nowrap;min-height:44px;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-btn)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px -6px rgba(234,74,12,.5)}
.btn-ghost{background:var(--surface);border:1px solid var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--surface-2)}
.btn-light{background:#fff;color:var(--brand-600)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 10px 24px -10px rgba(23,18,15,.5)}
.btn-outline-light{background:transparent;border:1px solid rgba(255,255,255,.6);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14)}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:15px}
.btn-text .arrow{transition:transform .2s ease}
.btn-text:hover .arrow{transform:translateX(3px)}

.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:var(--surface);
}
@media (min-width:1024px){.nav-toggle{display:none}}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer-mask{position:fixed;inset:0;background:rgba(23,18,15,.45);opacity:0;visibility:hidden;transition:opacity .25s ease, visibility .25s ease;z-index:60}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);
  background:#fff;z-index:70;transform:translateX(100%);
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;padding:20px;
  box-shadow:-20px 0 50px -20px rgba(23,18,15,.35);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink-2)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:14px 14px;border-radius:12px;font-size:16px;color:var(--ink-2);font-weight:500}
.drawer-nav a:hover{background:var(--surface-2);color:var(--brand-600)}
.drawer-nav a.active{background:var(--brand-50);color:var(--brand-600);font-weight:700}
.drawer-search{display:flex;align-items:center;gap:8px;height:48px;padding:0 16px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line-strong);margin:18px 0}
.drawer-search input{border:none;background:transparent;outline:none;font-size:15px;width:100%}

/* ---------- Breadcrumb ---------- */
.breadcrumb-wrap{padding-top:24px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
.breadcrumb a{color:var(--ink-3);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--ink-2)}

/* ---------- Page hero ---------- */
.page-hero{padding:24px 0 0}
.page-hero-card{
  position:relative;overflow:hidden;border-radius:var(--r-big);
  background-image:linear-gradient(115deg, rgba(23,18,15,.88) 0%, rgba(23,18,15,.7) 45%, rgba(23,18,15,.42) 100%), url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:44px 24px 40px;color:#fff;
}
@media (min-width:768px){.page-hero-card{padding:56px 48px 48px}}
@media (min-width:1024px){.page-hero-card{padding:64px 56px 56px}}
.page-hero-card::after{
  content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle, rgba(255,106,43,.45) 0%, rgba(255,106,43,0) 68%);
  pointer-events:none;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  font-size:13px;font-weight:600;letter-spacing:.02em;backdrop-filter:blur(8px);
}
.page-hero h1{
  margin-top:18px;font-size:clamp(30px,4.4vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.02em;
  max-width:16em;
}
.page-hero .hero-sub{margin-top:16px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.86);max-width:34em}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-meta .pill{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);font-size:13px;color:rgba(255,255,255,.92);
}

/* ---------- Chip nav ---------- */
.chip-nav-wrap{padding:22px 0 0}
.chip-nav{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch}
.chip-nav::-webkit-scrollbar{height:6px}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);background:var(--surface);
  font-size:14px;color:var(--ink-2);font-weight:500;
  transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease;
  min-height:44px;
}
.chip:hover{border-color:var(--brand-300);color:var(--brand-600);transform:translateY(-1px)}
.chip.is-active{background:var(--grad);border-color:transparent;color:#fff;font-weight:600;box-shadow:var(--shadow-btn)}

/* ---------- Sections ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:44em;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--brand-600);text-transform:none;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}
h2.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.28;font-weight:700;letter-spacing:-.015em;color:var(--ink)}
.section-desc{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:36em}

/* ---------- Timeline steps ---------- */
.timeline-layout{display:grid;gap:36px}
@media (min-width:1024px){.timeline-layout{grid-template-columns:minmax(0,1fr) 360px;gap:48px;align-items:start}}
.timeline{position:relative;padding-left:70px}
.timeline::before{
  content:"";position:absolute;left:26px;top:12px;bottom:40px;width:2px;
  background:linear-gradient(180deg,var(--brand-300) 0%,var(--line) 100%);
  border-radius:2px;
}
@media (max-width:640px){.timeline{padding-left:56px}.timeline::before{left:20px}}
.step{position:relative;padding-bottom:34px;border-bottom:1px dashed var(--line);margin-bottom:34px}
.step:last-child{border-bottom:none;padding-bottom:0;margin-bottom:0}
.step-index{
  position:absolute;left:-70px;top:-4px;
  width:54px;height:54px;border-radius:18px;
  background:var(--surface);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;letter-spacing:-.03em;
  color:var(--brand-600);font-variant-numeric:tabular-nums;
  box-shadow:var(--shadow-soft);
}
@media (max-width:640px){.step-index{left:-56px;width:42px;height:42px;border-radius:14px;font-size:17px}}
.step h3{font-size:20px;line-height:1.45;font-weight:700;color:var(--ink)}
.step p{margin-top:10px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:36em}
.step-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.step-list li{position:relative;padding-left:22px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.step-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:3px;background:var(--brand-300);
}

.timeline-aside{position:relative}
@media (min-width:1024px){.timeline-aside{position:sticky;top:100px}}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-big);
  overflow:hidden;box-shadow:var(--shadow-soft);
}
.aside-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.aside-body{padding:20px 22px 24px}
.aside-body h3{font-size:17px;font-weight:700;color:var(--ink)}
.aside-body p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-3)}

/* ---------- Checklist grid ---------- */
.check-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.check-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.check-card{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,border-color .22s ease,background .22s ease;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:#FFD9C2;background:var(--surface)}
.check-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:14px;background:var(--surface);border:1px solid var(--brand-100);
  color:var(--brand-600);font-weight:800;font-size:16px;font-variant-numeric:tabular-nums;
}
.check-card h3{margin-top:16px;font-size:17px;font-weight:700;line-height:1.5;color:var(--ink)}
.check-card p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-3)}

/* ---------- Metrics ---------- */
.metrics-band{
  background:var(--dark);border-radius:28px;padding:44px 24px;color:var(--dark-ink);position:relative;overflow:hidden;
}
@media (min-width:768px){.metrics-band{padding:56px 48px}}
.metrics-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);
}
.metrics-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:#fff;line-height:1.3}
.metrics-band .lead{margin-top:12px;font-size:15px;line-height:1.8;color:var(--dark-ink-2);max-width:36em}
.metrics-grid{margin-top:36px;display:grid;gap:20px;grid-template-columns:repeat(2,minmax(0,1fr))}
@media (min-width:1024px){.metrics-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}}
.metric{border-left:1px solid rgba(255,255,255,.12);padding-left:18px}
.metric .num{
  font-size:30px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric .num .unit{font-size:14px;font-weight:600;margin-left:2px}
.metric .label{margin-top:8px;font-size:13px;line-height:1.7;color:var(--dark-ink-2)}
.progress-list{margin-top:36px;display:flex;flex-direction:column;gap:18px;max-width:640px}
.progress-row{display:flex;flex-direction:column;gap:8px}
.progress-row .row-head{display:flex;justify-content:space-between;font-size:13px;color:var(--dark-ink-2)}
.progress-track{height:8px;border-radius:999px;background:rgba(255,255,255,.1);overflow:hidden}
.progress-fill{height:100%;border-radius:999px}
.progress-fill.brand{background:var(--grad)}
.progress-fill.accent{background:linear-gradient(90deg,#0FA98E,#5FE0C6)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item:hover{border-color:#FFD9C2}
.faq-item[open]{box-shadow:var(--shadow-soft);border-color:var(--brand-100)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-50);color:var(--brand-600);
  transition:transform .25s ease, background .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand-600);color:#fff}
.faq-icon svg{width:14px;height:14px}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-body p + p{margin-top:10px}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:28px;background:var(--grad);padding:40px 24px;color:#fff;
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;gap:28px;
}
@media (min-width:768px){.cta-band{padding:52px 48px}}
@media (min-width:1024px){.cta-band{flex-direction:row;align-items:center;justify-content:space-between;gap:48px}}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22) 0%,rgba(255,255,255,0) 70%);
}
.cta-band .cta-line{width:56px;height:2px;border-radius:2px;background:rgba(255,255,255,.6);margin-bottom:18px}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.3;letter-spacing:-.015em}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.9);max-width:34em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}
@media (max-width:520px){.cta-actions .btn{width:100%}}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--dark);color:var(--dark-ink-2);
  border-radius:28px 28px 0 0;margin-top:64px;padding-top:2px;
}
.site-footer::before{content:"";display:block;height:3px;background:var(--grad);border-radius:28px 28px 0 0}
.footer-grid{
  display:grid;gap:36px;padding:52px 0 40px;grid-template-columns:1fr;
}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-brandline{display:flex;align-items:center;gap:10px}
.footer-brandline .brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;
}
.footer-brandline .brand-name{color:#fff;font-size:17px;font-weight:800}
.footer-about{margin-top:16px;font-size:14px;line-height:1.8;color:var(--dark-ink-2);max-width:26em}
.footer-contact{margin-top:16px;font-size:14px;line-height:1.9;color:var(--dark-ink-2)}
.footer-contact span{color:#fff}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:var(--dark-ink-2);display:inline-block;transition:color .2s ease, transform .2s ease}
.footer-col ul a:hover{color:#fff;transform:translateX(3px)}
.footer-badge{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  font-size:13px;color:#fff;margin-bottom:16px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom a{color:var(--dark-ink-2);transition:color .2s ease}
.footer-bottom a:hover{color:#fff}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .4s ease, transform .4s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category2 */
:root{
  --brand-50:#FFF3EC;--brand-100:#FFE2D2;--brand-300:#FFB183;--brand-500:#FF6A2B;--brand-600:#EA4A0C;--brand-700:#B93706;
  --accent-500:#0FA98E;--accent-50:#E6F7F3;
  --bg:#FFF9F5;--surface:#FFFFFF;--surface-2:#FFF3EC;--line:#F0E4DB;--line-strong:#E8DAD0;
  --ink:#1D1712;--ink-2:#5C524A;--ink-3:#8B8078;
  --dark:#17120F;--dark-ink:#F5EFEA;--dark-ink-2:#C9BFB8;
  --brand-grad:linear-gradient(135deg,#FF8A3D 0%,#FF5A2B 48%,#F0306B 100%);
  --shadow-soft:0 1px 2px rgba(29,23,18,.04),0 8px 24px -8px rgba(29,23,18,.10);
  --shadow-lift:0 18px 40px -12px rgba(234,74,12,.18);
  --shadow-btn:0 8px 20px -6px rgba(234,74,12,.42);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:var(--brand-100);color:var(--brand-700)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--surface-2)}
::-webkit-scrollbar-thumb{background:var(--brand-300);border-radius:999px;border:2px solid var(--surface-2)}
::-webkit-scrollbar-thumb:hover{background:var(--brand-500)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,106,43,.35);border-radius:8px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(29,23,18,.06)}
.header-inner{display:flex;align-items:center;gap:18px;height:64px}
@media (min-width:1024px){.header-inner{height:72px;gap:26px}}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:13px;background:var(--brand-grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;
  box-shadow:0 6px 16px -6px rgba(234,74,12,.55);flex:0 0 auto;
}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
@media (min-width:1024px){.brand-name{font-size:18px}}
.main-nav{display:none;align-items:center;gap:2px;margin-left:8px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{
  position:relative;display:inline-block;padding:10px 12px;font-size:15px;color:var(--ink-2);
  border-radius:999px;transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;border-radius:2px;
  background:var(--brand-grad);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-600);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-side{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{
  display:none;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:var(--surface-2);border:1px solid transparent;border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
@media (min-width:1024px){.nav-search{display:flex}}
.nav-search svg{width:16px;height:16px;stroke:var(--ink-3);flex:0 0 auto}
.nav-search input{border:0;background:transparent;outline:none;width:132px;font-size:14px;color:var(--ink)}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(255,106,43,.25)}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;
  background:var(--surface-2);border:1px solid var(--line);border-radius:12px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
@media (min-width:1024px){.nav-toggle{display:none}}
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,18,15,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:60;
}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);background:var(--surface);
  z-index:61;transform:translateX(102%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  padding:22px 20px;overflow-y:auto;display:flex;flex-direction:column;gap:16px;
}
.drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface-2);
  cursor:pointer;font-size:18px;line-height:1;color:var(--ink-2);
}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;background:var(--surface-2);border:1px solid var(--line);border-radius:12px}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:15px}
.drawer-links{display:flex;flex-direction:column;gap:2px}
.drawer-links a{padding:13px 12px;border-radius:12px;font-size:15px;color:var(--ink-2)}
.drawer-links a:hover{background:var(--surface-2);color:var(--brand-600)}
.drawer-links a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  min-height:44px;
}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--shadow-btn)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px -6px rgba(234,74,12,.45)}
.btn-ghost{background:var(--surface);border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--surface-2)}
.btn-light{background:#fff;color:var(--brand-600);box-shadow:0 10px 24px -10px rgba(23,18,15,.35)}
.btn-light:hover{transform:translateY(-1px);filter:brightness(.98)}
.btn-outline-white{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-white:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px}
.btn .arrow{transition:transform .2s ease}
.btn:hover .arrow{transform:translateX(3px)}
@media (max-width:520px){.btn-block-sm{width:100%}}

/* ============ 面包屑 ============ */
.breadcrumb{padding:22px 0 0;font-size:13px;color:var(--ink-3)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.breadcrumb li::after{content:"›";margin-left:6px;color:var(--line-strong)}
.breadcrumb li:last-child::after{content:"";margin:0}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb [aria-current]{color:var(--ink-2)}

/* ============ 分类页头 ============ */
.cat-hero{position:relative;overflow:hidden;padding-bottom:30px}
.cat-hero-glow{
  position:absolute;top:-180px;right:-140px;width:620px;height:620px;border-radius:50%;
  background:var(--brand-grad);opacity:.13;filter:blur(10px);pointer-events:none;
}
.cat-hero-grid{
  position:relative;display:grid;gap:28px;align-items:center;
  margin-top:22px;padding-bottom:8px;
}
@media (min-width:1024px){.cat-hero-grid{grid-template-columns:1.08fr .92fr;gap:48px;margin-top:30px}}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-600);font-size:13px;font-weight:600;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500)}
.cat-hero h1{
  margin-top:16px;font-size:clamp(30px,4.4vw,3.4rem);line-height:1.16;font-weight:800;letter-spacing:-.02em;color:var(--ink);
}
.cat-hero h1 .grad{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.cat-hero-sub{margin-top:16px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:34em}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
@media (max-width:520px){.cat-hero-actions .btn{width:100%}}
.cat-hero-media{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow-soft);border:1px solid var(--line)}
.cat-hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.cat-hero-media .media-tag{
  position:absolute;left:16px;bottom:16px;display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.86);
  backdrop-filter:blur(8px);font-size:13px;font-weight:600;color:var(--brand-700);
}

/* ============ 胶囊子导航 ============ */
.pill-nav{
  display:flex;gap:10px;margin-top:28px;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.pill-nav::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;font-size:14px;font-weight:500;
  border:1px solid var(--line-strong);background:var(--surface);color:var(--ink-2);
  transition:all .2s ease;min-height:40px;display:inline-flex;align-items:center;
}
.pill:hover{border-color:var(--brand-300);color:var(--brand-600)}
.pill.active{background:var(--brand-grad);border-color:transparent;color:#fff;font-weight:600;box-shadow:var(--shadow-btn)}

/* ============ 板块通用 ============ */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:44em}
.section-head h2{font-size:clamp(24px,2.6vw,2.25rem);line-height:1.28;font-weight:700;letter-spacing:-.015em;color:var(--ink)}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px;max-width:34em}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--brand-600);
  background:var(--brand-50);padding:5px 12px;border-radius:999px;margin-bottom:14px;
}

/* ============ 卡片 ============ */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-soft);
  overflow:hidden;transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:#FFD9C2}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .card-badge{
  position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.88);backdrop-filter:blur(8px);color:var(--brand-700);
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;font-weight:700;line-height:1.45;color:var(--ink)}
.card-body p{font-size:14px;line-height:1.8;color:var(--ink-3)}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-3);padding-top:6px}
.card-foot .go{color:var(--brand-600);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.card:hover .card-foot .go .arrow{transform:translateX(3px)}
.card-foot .go .arrow{transition:transform .2s ease}
.card-list{display:flex;flex-direction:column;gap:8px;margin-top:4px}
.card-list li{position:relative;padding-left:16px;font-size:14px;line-height:1.75;color:var(--ink-2)}
.card-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:var(--brand-300)}
.card.tint{background:var(--surface-2)}

/* ============ 主区布局 ============ */
.cat-main-grid{display:grid;gap:32px}
@media (min-width:1024px){.cat-main-grid{grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start}}
.cards-two{display:grid;gap:22px}
@media (min-width:640px){.cards-two{grid-template-columns:repeat(2,minmax(0,1fr))}}
.cards-two .card:nth-child(3n){transform:none}

/* 右侧信息栏 */
.side-col{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.side-col{position:sticky;top:96px}}
.side-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow-soft);
}
.side-panel h3{font-size:16px;font-weight:700;color:var(--ink)}
.side-panel .side-note{font-size:13px;color:var(--ink-3);margin-top:6px;line-height:1.7}
.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}
.stat{
  border-radius:16px;padding:14px 14px 12px;background:var(--surface-2);border:1px solid var(--line);
}
.stat .num{font-size:26px;font-weight:800;line-height:1.1;color:var(--brand-600);font-variant-numeric:tabular-nums}
.stat .num .unit{font-size:13px;font-weight:700;margin-left:2px}
.stat .lbl{font-size:12px;color:var(--ink-3);margin-top:4px}
.stat.accent{background:var(--accent-50);border-color:#CBE9E2}
.stat.accent .num{color:var(--accent-500)}
.side-cta{
  background:var(--dark);color:var(--dark-ink);border-radius:24px;padding:24px;position:relative;overflow:hidden;
}
.side-cta::after{
  content:"";position:absolute;top:-60px;right:-60px;width:200px;height:200px;border-radius:50%;
  background:var(--brand-grad);opacity:.28;filter:blur(18px);
}
.side-cta h3{position:relative;font-size:18px;font-weight:700;color:#fff}
.side-cta p{position:relative;font-size:14px;color:var(--dark-ink-2);margin-top:10px;line-height:1.75}
.side-cta .btn{position:relative;margin-top:18px;width:100%}
.side-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--ink-2);
  padding:10px 12px;border-radius:12px;background:var(--surface-2);transition:all .2s ease;
}
.side-list a:hover{background:var(--brand-50);color:var(--brand-600)}

/* ============ 深色速查面板 ============ */
.dark-panel{
  background:var(--dark);border-radius:28px;padding:34px 26px;color:var(--dark-ink);position:relative;overflow:hidden;
}
@media (min-width:768px){.dark-panel{padding:48px 44px}}
.dark-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--brand-grad);opacity:.9;
}
.dark-panel h2{font-size:clamp(22px,2.4vw,2rem);font-weight:700;color:#fff;letter-spacing:-.01em;line-height:1.3}
.dark-panel .lead{color:var(--dark-ink-2);font-size:15px;margin-top:12px;max-width:38em}
.dark-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:30px}
@media (min-width:768px){.dark-stats{grid-template-columns:repeat(4,minmax(0,1fr))}}
.dark-stat .num{
  font-size:clamp(26px,3vw,34px);font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.dark-stat .lbl{font-size:13px;color:var(--dark-ink-2);margin-top:6px}
.bars{margin-top:32px;display:flex;flex-direction:column;gap:18px}
.bar-row{display:flex;flex-direction:column;gap:8px}
.bar-row .bar-top{display:flex;justify-content:space-between;font-size:13px;color:var(--dark-ink-2)}
.bar-row .bar-top b{color:#fff;font-weight:600}
.bar{height:8px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:var(--brand-grad)}
.bar.accent i{background:linear-gradient(90deg,#0FA98E,#5BD5B8)}

/* ============ 对照卡 ============ */
.compare-grid{display:grid;gap:22px;margin-top:32px}
@media (min-width:768px){.compare-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.compare-card{border-radius:24px;padding:26px;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-soft)}
.compare-card.alt{background:var(--surface-2);border-color:var(--brand-100)}
.compare-card h3{font-size:18px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:10px}
.compare-card .dot{width:10px;height:10px;border-radius:50%;background:var(--brand-500);flex:0 0 auto}
.compare-card.alt .dot{background:var(--accent-500)}
.compare-list{margin-top:18px;display:flex;flex-direction:column;gap:0}
.compare-list li{
  display:flex;justify-content:space-between;gap:14px;font-size:14px;padding:13px 0;
  border-bottom:1px dashed var(--line-strong);color:var(--ink-2);
}
.compare-list li:last-child{border-bottom:0}
.compare-list li span:last-child{color:var(--ink);font-weight:600;text-align:right;flex:0 0 auto}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:var(--brand-100);box-shadow:var(--shadow-soft)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:18px 20px;background:none;border:0;cursor:pointer;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-600)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;
  transition:transform .25s ease,background-color .25s ease,color .25s ease;
}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--brand-600);color:#fff}
.faq-a{display:none;padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-item.open .faq-a{display:block}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;background:var(--brand-grad);
  padding:36px 26px;color:#fff;display:grid;gap:24px;align-items:center;
}
@media (min-width:768px){.cta-band{padding:48px 44px;grid-template-columns:1.3fr .7fr;gap:32px}}
.cta-band::before{
  content:"";position:absolute;top:22px;left:44px;right:44px;height:1px;background:rgba(255,255,255,.35);
}
.cta-band h2{font-size:clamp(22px,2.6vw,2rem);font-weight:700;line-height:1.3}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.9);max-width:36em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:768px){.cta-actions{justify-content:flex-end}}
@media (max-width:520px){.cta-actions .btn{width:100%}}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:56px;background:var(--dark);color:var(--dark-ink-2);
  border-radius:28px 28px 0 0;padding:52px 0 26px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--brand-grad);opacity:.85;
  border-radius:28px 28px 0 0;
}
.footer-grid{display:grid;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.footer-brandline{display:flex;align-items:center;gap:10px}
.footer-brandline .brand-mark{width:36px;height:36px;border-radius:12px}
.footer-brandline .brand-name{color:#fff;font-size:17px;font-weight:800}
.footer-about{margin-top:14px;font-size:14px;line-height:1.8;color:var(--dark-ink-2);max-width:30em}
.footer-contact{margin-top:16px;font-size:13px;line-height:1.9;color:#9E928A}
.footer-contact span{color:var(--dark-ink)}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a,.footer-col ul span{font-size:14px;color:var(--dark-ink-2);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col ul a:hover{color:#fff;transform:translateX(3px)}
.footer-badge{
  display:inline-block;font-size:12px;padding:5px 12px;border-radius:999px;
  background:rgba(255,106,43,.18);color:#FFB183;margin-bottom:14px;
}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#9E928A;
}
.footer-bottom a:hover{color:#fff}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .4s ease,transform .4s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --brand-50:#FFF3EC; --brand-100:#FFE2D2; --brand-300:#FFB183; --brand-500:#FF6A2B; --brand-600:#EA4A0C; --brand-700:#B93706;
  --accent-500:#0FA98E; --accent-50:#E6F7F3;
  --brand-grad:linear-gradient(135deg,#FF8A3D 0%,#FF5A2B 48%,#F0306B 100%);
  --bg:#FFF9F5; --surface:#FFFFFF; --surface-2:#FFF3EC;
  --line:#F0E4DB; --line-strong:#E8DAD0;
  --ink:#1D1712; --ink-2:#5C524A; --ink-3:#8B8078;
  --night:#17120F; --night-text:#F5EFEA; --night-text-2:#C9BFB8;
  --r-card:20px; --r-big:24px; --r-xl:28px;
  --shadow-soft:0 1px 2px rgba(29,23,18,.04), 0 8px 24px -8px rgba(29,23,18,.10);
  --shadow-lift:0 18px 40px -12px rgba(234,74,12,.18);
  --shadow-btn:0 8px 20px -6px rgba(234,74,12,.42);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; }
html body{
  margin:0; padding:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px; line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; border:0; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
input,textarea{ font-family:inherit; }
::selection{ background:var(--brand-100); color:var(--brand-700); }
:focus-visible{ outline:3px solid rgba(255,106,43,.35); outline-offset:2px; border-radius:6px; }
::-webkit-scrollbar{ width:10px; height:10px; }
::-webkit-scrollbar-track{ background:#FDF3EC; }
::-webkit-scrollbar-thumb{ background:#FFD4BC; border-radius:999px; border:2px solid #FDF3EC; }
::-webkit-scrollbar-thumb:hover{ background:var(--brand-300); }
body::-webkit-scrollbar-thumb{ background:#FFD4BC; }
.grad-text{ background:var(--brand-grad); -webkit-background-clip:text; background-clip:text; color:transparent; }

.container{ width:100%; max-width:1240px; margin:0 auto; padding:0 20px; }
@media (min-width:768px){ .container{ padding:0 24px; } }
@media (min-width:1024px){ .container{ padding:0 32px; } }

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:#fff; border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{ box-shadow:0 4px 16px rgba(29,23,18,.06); }
.header-inner{ display:flex; align-items:center; gap:18px; height:64px; }
@media (min-width:1024px){ .header-inner{ height:72px; gap:26px; } }
.brand{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.brand-mark{
  width:36px; height:36px; flex:0 0 36px; border-radius:14px;
  background:var(--brand-grad); color:#fff;
  display:grid; place-items:center; font-size:17px; font-weight:800;
  box-shadow:0 6px 14px -6px rgba(234,74,12,.55);
}
@media (min-width:1024px){ .brand-mark{ width:40px; height:40px; flex-basis:40px; font-size:18px; border-radius:16px; } }
.brand-name{ font-size:16px; font-weight:800; letter-spacing:-.01em; color:var(--ink); white-space:nowrap; }
@media (min-width:1024px){ .brand-name{ font-size:18px; } }
.main-nav{ display:none; }
@media (min-width:1024px){
  .main-nav{ display:flex; align-items:center; gap:2px; margin-right:auto; }
}
.nav-link{
  position:relative; display:inline-block;
  padding:8px 12px; font-size:15px; color:var(--ink-2);
  border-radius:999px; white-space:nowrap; transition:color .2s var(--ease);
}
.nav-link::after{
  content:""; position:absolute; left:12px; right:12px; bottom:2px; height:2px;
  border-radius:999px; background:var(--brand-grad);
  transform:scaleX(0); transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{ color:var(--brand-600); }
.nav-link:hover::after{ transform:scaleX(1); }
.nav-link.active{ color:var(--brand-600); font-weight:600; }
.nav-link.active::after{ transform:scaleX(1); }
.header-actions{ display:flex; align-items:center; gap:10px; margin-left:auto; }
.search-box{
  display:none; align-items:center; gap:8px;
  height:40px; width:210px; padding:0 14px;
  border-radius:999px; background:var(--surface-2);
  border:1px solid transparent; transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
@media (min-width:1180px){ .search-box{ display:flex; } }
.search-box:focus-within{ border-color:var(--brand-500); box-shadow:0 0 0 3px rgba(255,106,43,.25); }
.search-box svg{ flex:0 0 16px; color:var(--ink-3); }
.search-box input{
  flex:1; min-width:0; height:100%; border:0; background:transparent; outline:none;
  font-size:14px; color:var(--ink);
}
.search-box input::placeholder{ color:var(--ink-3); }
.nav-toggle{
  display:inline-flex; align-items:center; justify-content:center;
  width:44px; height:44px; border:1px solid var(--line-strong);
  border-radius:14px; background:#fff; color:var(--ink);
  transition:border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}
.nav-toggle:hover{ border-color:var(--brand-500); color:var(--brand-600); background:var(--surface-2); }
@media (min-width:1024px){ .nav-toggle{ display:none; } }
.icon-btn{
  display:inline-flex; align-items:center; justify-content:center;
  width:44px; height:44px; border-radius:14px; border:1px solid var(--line-strong); background:#fff; color:var(--ink);
}
.icon-btn:hover{ border-color:var(--brand-500); color:var(--brand-600); }
@media (min-width:1180px){ .header-actions .icon-btn{ display:none; } }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  min-height:44px; padding:11px 22px; border-radius:999px;
  font-size:15px; font-weight:600; border:1px solid transparent;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), background-color .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease), filter .22s var(--ease);
}
.btn-primary{ background:var(--brand-grad); color:#fff; box-shadow:var(--shadow-btn); }
.btn-primary:hover{ transform:translateY(-1px); filter:brightness(1.06); }
.btn-primary:active{ transform:translateY(1px); box-shadow:0 4px 10px -4px rgba(234,74,12,.45); }
.btn-ghost{ background:#fff; border-color:var(--line-strong); color:var(--ink); }
.btn-ghost:hover{ border-color:var(--brand-600); color:var(--brand-600); background:var(--surface-2); }
.btn-sm{ min-height:40px; padding:8px 18px; font-size:14px; }
.btn-white{ background:#fff; color:var(--brand-600); box-shadow:0 10px 24px -12px rgba(23,18,15,.45); }
.btn-white:hover{ transform:translateY(-1px); background:#FFF6F0; }
.btn-outline-white{ background:transparent; border-color:rgba(255,255,255,.6); color:#fff; }
.btn-outline-white:hover{ background:rgba(255,255,255,.14); border-color:#fff; }
.btn-link{
  display:inline-flex; align-items:center; gap:6px;
  color:var(--brand-600); font-weight:600; font-size:15px;
}
.btn-link .arrow{ transition:transform .2s var(--ease); }
.btn-link:hover .arrow{ transform:translateX(3px); }
@media (max-width:640px){ .btn-full-sm{ width:100%; } }

/* ---------- drawer ---------- */
.drawer-overlay{
  position:fixed; inset:0; z-index:55; background:rgba(23,18,15,.45);
  opacity:0; visibility:hidden; transition:opacity .3s var(--ease), visibility .3s var(--ease);
}
.drawer-overlay.open{ opacity:1; visibility:visible; }
.drawer{
  position:fixed; top:0; right:0; z-index:60;
  width:min(320px,86vw); height:100%;
  background:#fff; padding:22px 20px 32px;
  display:flex; flex-direction:column; gap:18px;
  transform:translateX(102%); transition:transform .32s var(--ease);
  overflow-y:auto; box-shadow:-20px 0 40px -20px rgba(23,18,15,.3);
}
.drawer.open{ transform:translateX(0); }
.drawer-head{ display:flex; align-items:center; justify-content:space-between; gap:12px; }
.drawer-title{ font-size:15px; font-weight:700; color:var(--ink); }
.drawer nav{ display:flex; flex-direction:column; gap:4px; }
.drawer .nav-link{ display:block; padding:12px 14px; border-radius:12px; font-size:15px; }
.drawer .nav-link::after{ display:none; }
.drawer .nav-link:hover{ background:var(--surface-2); }
.drawer .nav-link.active{ background:var(--brand-50); }
.drawer-search{
  display:flex; align-items:center; gap:8px; height:48px; padding:0 14px;
  border:1px solid var(--line-strong); border-radius:12px; background:#fff;
}
.drawer-search input{ flex:1; min-width:0; border:0; outline:none; font-size:15px; background:transparent; }

/* ---------- page hero ---------- */
.page-hero{
  position:relative; overflow:hidden;
  background-image:linear-gradient(103deg, rgba(23,18,15,.94) 0%, rgba(23,18,15,.84) 42%, rgba(23,18,15,.58) 100%), url('/assets/images/backpic/back-1.webp');
  background-size:cover; background-position:center right;
  padding:44px 0 52px;
}
@media (min-width:768px){ .page-hero{ padding:56px 0 68px; } }
@media (min-width:1024px){ .page-hero{ padding:68px 0 84px; } }
.page-hero::after{
  content:""; position:absolute; top:-120px; right:-80px; width:420px; height:420px;
  background:radial-gradient(circle, rgba(255,106,43,.38) 0%, rgba(255,106,43,0) 68%);
  pointer-events:none;
}
.page-hero .container{ position:relative; z-index:1; }
.crumb ol{
  list-style:none; display:flex; flex-wrap:wrap; align-items:center; gap:6px;
  margin:0 0 18px; padding:0; font-size:13px; color:rgba(245,239,234,.72);
}
.crumb li{ display:inline-flex; align-items:center; gap:6px; }
.crumb li+li::before{ content:"›"; color:rgba(245,239,234,.45); margin-right:2px; }
.crumb a{ color:rgba(245,239,234,.82); transition:color .2s var(--ease); }
.crumb a:hover{ color:#fff; }
.crumb [aria-current="page"]{ color:rgba(245,239,234,.95); }
.page-hero h1{
  margin:0 0 16px; max-width:18em;
  font-size:clamp(30px,4.4vw,52px); line-height:1.15; font-weight:800; letter-spacing:-.02em;
  color:#fff;
}
.page-hero .hero-sub{
  margin:0; max-width:36em;
  font-size:16px; line-height:1.85; color:rgba(245,239,234,.86);
}
@media (min-width:768px){ .page-hero .hero-sub{ font-size:17px; } }
.hero-tags{ display:flex; flex-wrap:wrap; gap:10px; margin-top:24px; }
.tag{
  display:inline-flex; align-items:center; gap:6px;
  padding:7px 14px; border-radius:999px; font-size:13px; font-weight:600; line-height:1.4;
}
.tag-solid{ background:var(--brand-grad); color:#fff; }
.tag-outline{ border:1px solid rgba(255,255,255,.4); color:#F5EFEA; }
.tag-accent{ background:rgba(15,169,142,.18); border:1px solid rgba(15,169,142,.45); color:#7FE3CE; }
.tag-soft{ background:var(--brand-50); color:var(--brand-600); }
.tag-plain{ border:1px solid var(--brand-100); color:var(--ink-2); background:#fff; }

/* ---------- chip bar ---------- */
.chip-bar{ background:#fff; border-bottom:1px solid var(--line); }
.chip-scroll{
  display:flex; align-items:center; gap:10px;
  padding-top:14px; padding-bottom:14px;
  overflow-x:auto; scrollbar-width:none;
}
.chip-scroll::-webkit-scrollbar{ display:none; }
.chip{
  flex:0 0 auto; display:inline-flex; align-items:center;
  padding:9px 18px; border-radius:999px; font-size:14px; font-weight:600;
  border:1px solid var(--line-strong); color:var(--ink-2); background:#fff;
  transition:all .2s var(--ease); white-space:nowrap; min-height:40px;
}
.chip:hover{ border-color:var(--brand-300); color:var(--brand-600); background:var(--surface-2); }
.chip-active{ background:var(--brand-grad); border-color:transparent; color:#fff; box-shadow:var(--shadow-btn); }
.chip-active:hover{ color:#fff; background:var(--brand-grad); border-color:transparent; }

/* ---------- sections ---------- */
.section{ padding:56px 0; }
@media (min-width:768px){ .section{ padding:72px 0; } }
@media (min-width:1024px){ .section{ padding:104px 0; } }
.section-tight{ padding:40px 0; }
@media (min-width:1024px){ .section-tight{ padding:64px 0; } }
.section-head{ max-width:720px; margin-bottom:32px; }
@media (min-width:1024px){ .section-head{ margin-bottom:44px; } }
.eyebrow{
  display:inline-block; margin-bottom:12px;
  font-size:13px; font-weight:700; letter-spacing:.08em; color:var(--brand-600);
}
.section-head h2{
  margin:0 0 14px;
  font-size:clamp(24px,2.6vw,36px); line-height:1.25; font-weight:700; letter-spacing:-.015em; color:var(--ink);
}
.section-head p{ margin:0; font-size:16px; line-height:1.85; color:var(--ink-2); max-width:34em; }

/* ---------- FAQ ---------- */
.faq-list{ display:flex; flex-direction:column; gap:12px; max-width:900px; }
.faq-item{
  background:#fff; border:1px solid var(--line); border-radius:16px;
  box-shadow:var(--shadow-soft); overflow:hidden;
  transition:border-color .22s var(--ease), box-shadow .22s var(--ease), transform .22s var(--ease);
}
.faq-item:hover{ border-color:#FFD9C2; }
.faq-item.open{ border-color:#FFD9C2; box-shadow:0 18px 40px -18px rgba(234,74,12,.22); }
.faq-q{
  width:100%; display:flex; align-items:flex-start; justify-content:space-between; gap:16px;
  padding:18px 20px; border:0; background:transparent; text-align:left;
  font-size:16px; font-weight:600; line-height:1.6; color:var(--ink);
  transition:color .2s var(--ease);
}
@media (min-width:768px){ .faq-q{ font-size:17px; padding:20px 24px; } }
.faq-q:hover{ color:var(--brand-600); }
.faq-icon{
  flex:0 0 26px; width:26px; height:26px; margin-top:2px;
  display:grid; place-items:center; border-radius:50%;
  background:var(--brand-50); color:var(--brand-600);
  font-size:16px; font-weight:700; line-height:1;
  transition:transform .3s var(--ease), background .3s var(--ease), color .3s var(--ease);
}
.faq-item.open .faq-icon{ transform:rotate(180deg); background:var(--brand-grad); color:#fff; }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .34s var(--ease); }
.faq-a-inner{ padding:0 20px 20px; }
@media (min-width:768px){ .faq-a-inner{ padding:0 24px 22px; } }
.faq-a p{ margin:0; font-size:15px; line-height:1.9; color:var(--ink-2); max-width:40em; }
.faq-a p+p{ margin-top:10px; }

/* ---------- stat band ---------- */
.stat-band{
  position:relative; overflow:hidden; border-radius:var(--r-xl);
  background:var(--night);
  padding:34px 24px;
}
@media (min-width:768px){ .stat-band{ padding:44px 38px; } }
@media (min-width:1024px){ .stat-band{ padding:52px 48px; } }
.stat-band::before{
  content:""; position:absolute; inset:0;
  background-image:linear-gradient(120deg, rgba(23,18,15,.93) 0%, rgba(23,18,15,.76) 55%, rgba(23,18,15,.6) 100%), url('/assets/images/coverpic/cover-5.webp');
  background-size:cover; background-position:center;
  opacity:.9; pointer-events:none;
}
.stat-band::after{
  content:""; position:absolute; left:0; right:0; top:0; height:2px;
  background:var(--brand-grad); opacity:.85;
}
.stat-band-inner{ position:relative; z-index:1; }
.stat-band h2{
  margin:0 0 10px; font-size:clamp(22px,2.4vw,32px); line-height:1.3; font-weight:700; color:#fff; letter-spacing:-.01em;
}
.stat-band .band-sub{ margin:0 0 30px; font-size:15px; color:var(--night-text-2); max-width:38em; }
.stat-grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:22px 18px; }
@media (min-width:1024px){ .stat-grid{ grid-template-columns:repeat(4,minmax(0,1fr)); gap:28px; } }
.stat-item{ position:relative; padding-left:0; }
@media (min-width:1024px){
  .stat-item+.stat-item::before{
    content:""; position:absolute; left:-14px; top:6px; bottom:6px; width:1px;
    background:rgba(255,255,255,.14);
  }
}
.stat-num{
  display:block; font-size:clamp(28px,3vw,38px); font-weight:800; line-height:1.1;
  font-variant-numeric:tabular-nums; letter-spacing:-.02em;
}
.stat-num .unit{ font-size:14px; font-weight:700; margin-left:3px; letter-spacing:0; }
.stat-label{ display:block; margin-top:8px; font-size:13px; color:var(--night-text-2); line-height:1.6; }

/* ---------- compare ---------- */
.compare-grid{ display:grid; grid-template-columns:1fr; gap:22px; }
@media (min-width:768px){ .compare-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:26px; } }
.compare-card{
  display:flex; flex-direction:column;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-big);
  box-shadow:var(--shadow-soft); overflow:hidden;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.compare-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-lift); border-color:#FFD9C2; }
.compare-card .thumb{ position:relative; aspect-ratio:16/9; overflow:hidden; background:var(--surface-2); }
.compare-card .thumb img{ width:100%; height:100%; object-fit:cover; }
.compare-card .thumb .thumb-tag{
  position:absolute; left:14px; top:14px;
  padding:6px 12px; border-radius:999px; font-size:12px; font-weight:700;
  background:rgba(255,255,255,.86); color:var(--brand-600);
  backdrop-filter:blur(8px);
}
.compare-body{ padding:22px; }
@media (min-width:768px){ .compare-body{ padding:26px; } }
.compare-body h3{ margin:0 0 10px; font-size:20px; font-weight:700; line-height:1.45; color:var(--ink); }
.compare-body .lead{ margin:0 0 18px; font-size:14px; line-height:1.8; color:var(--ink-3); }
.compare-list{ list-style:none; margin:0; padding:0; }
.compare-list li{
  position:relative; padding:12px 0 12px 24px;
  font-size:15px; line-height:1.8; color:var(--ink-2);
  border-top:1px solid var(--line);
}
.compare-list li:first-child{ border-top:0; padding-top:4px; }
.compare-list li::before{
  content:""; position:absolute; left:0; top:22px;
  width:9px; height:9px; border-radius:50%; background:var(--brand-grad);
}
.compare-list li:first-child::before{ top:14px; }
.compare-card-dark{ background:var(--night); border-color:#2A211C; }
.compare-card-dark h3{ color:#fff; }
.compare-card-dark .lead{ color:var(--night-text-2); }
.compare-card-dark .compare-list li{ color:var(--night-text); border-top-color:rgba(255,255,255,.1); }
.compare-card-dark .compare-list li::before{ background:var(--accent-500); }
.compare-card-dark .thumb .thumb-tag{ background:rgba(23,18,15,.7); color:#7FE3CE; }
.compare-foot{ margin-top:18px; }

/* ---------- cta band ---------- */
.cta-band{
  position:relative; overflow:hidden; border-radius:var(--r-xl);
  background:var(--brand-grad);
  padding:34px 24px;
  display:flex; flex-direction:column; gap:24px;
  box-shadow:0 26px 60px -26px rgba(234,74,12,.55);
}
@media (min-width:768px){
  .cta-band{ padding:44px 40px; flex-direction:row; align-items:center; justify-content:space-between; gap:36px; }
}
.cta-band::after{
  content:""; position:absolute; right:-60px; top:-80px; width:300px; height:300px;
  background:radial-gradient(circle, rgba(255,255,255,.28) 0%, rgba(255,255,255,0) 70%);
  pointer-events:none;
}
.cta-band h2{
  position:relative; z-index:1;
  margin:0 0 10px; font-size:clamp(22px,2.6vw,32px); line-height:1.3; font-weight:700; color:#fff; letter-spacing:-.01em;
}
.cta-band p{ position:relative; z-index:1; margin:0; font-size:15px; line-height:1.8; color:rgba(255,255,255,.9); max-width:34em; }
.cta-actions{ position:relative; z-index:1; display:flex; flex-wrap:wrap; gap:12px; }
@media (max-width:640px){ .cta-actions .btn{ width:100%; } }
.cta-line{ position:relative; z-index:1; height:1px; background:rgba(255,255,255,.32); margin-top:4px; }

/* ---------- footer ---------- */
.site-footer{
  margin-top:64px;
  background:var(--night); color:var(--night-text-2);
  border-radius:28px 28px 0 0;
  padding:52px 0 26px;
  position:relative;
}
.site-footer::before{
  content:""; position:absolute; left:0; right:0; top:0; height:3px;
  background:var(--brand-grad); opacity:.9; border-radius:28px 28px 0 0;
}
.footer-grid{ display:grid; grid-template-columns:1fr; gap:34px; }
@media (min-width:640px){ .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:34px 28px; } }
@media (min-width:1024px){ .footer-grid{ grid-template-columns:1.5fr 1fr 1fr 1fr; gap:40px; } }
.footer-brandline{ display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.footer-brandline .brand-mark{ box-shadow:none; }
.footer-brandline .brand-name{ color:#fff; font-size:17px; font-weight:800; }
.footer-about{ margin:0 0 16px; font-size:14px; line-height:1.85; color:var(--night-text-2); max-width:30em; }
.footer-contact{ font-size:14px; line-height:1.9; color:var(--night-text-2); }
.footer-contact span{ color:#F5EFEA; }
.footer-col h4{ margin:0 0 14px; font-size:15px; font-weight:700; color:#fff; }
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer-col a{
  display:inline-block; font-size:14px; color:var(--night-text-2);
  transition:color .2s var(--ease), transform .2s var(--ease);
}
.footer-col a:hover{ color:#fff; transform:translateX(3px); }
.footer-badge{
  display:inline-block; margin-bottom:14px; padding:7px 14px;
  border-radius:999px; font-size:13px; font-weight:600;
  background:rgba(255,106,43,.16); color:#FFB183;
}
.footer-bottom{
  margin-top:38px; padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex; flex-wrap:wrap; gap:10px 22px;
  font-size:13px; color:rgba(201,191,184,.85);
}
.footer-bottom a{ color:rgba(201,191,184,.9); }
.footer-bottom a:hover{ color:#fff; }

/* ---------- reveal ---------- */
.reveal{ opacity:0; transform:translateY(10px); transition:opacity .4s var(--ease), transform .4s var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  *{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
}