/* roulang page: index */
:root{
  --ink:#101014;
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --signal:#C8FA4B;
  --signal-ink:#1A2408;
  --alert:#FF5A3C;
  --muted:#6B6A72;
  --line:rgba(16,16,20,.10);
  --line-light:rgba(255,255,255,.14);
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 1px 0 rgba(16,16,20,.04),0 12px 32px rgba(16,16,20,.06);
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font-cn);background:var(--paper);color:var(--ink);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,figure{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(246,243,236,.93);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:14px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--ink);color:var(--signal);display:grid;place-items:center;font-size:19px;font-weight:700;letter-spacing:0}
.brand-name{display:block;font-size:15px;font-weight:700;letter-spacing:-.01em;line-height:1.3}
.brand-sub{display:block;font-size:11px;color:var(--muted);letter-spacing:.04em;line-height:1.4}
.main-nav{display:none;align-items:center;gap:2px;margin-left:22px}
.nav-link{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 12px;font-size:15px;font-weight:500;color:#2c2c33;border-radius:10px;transition:background .18s ease,color .18s ease}
.nav-link:hover{background:rgba(16,16,20,.05)}
.nav-link.is-active{font-weight:700;color:var(--ink)}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;border-radius:2px;background:var(--signal)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.status-pill{display:none;align-items:center;gap:7px;font-size:13px;color:#3a3a42;border:1px solid var(--line);border-radius:999px;padding:6px 12px;background:#fff;white-space:nowrap}
.dot{width:7px;height:7px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(200,250,75,.28)}
.menu-toggle{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line);border-radius:10px;cursor:pointer;transition:background .18s ease,border-color .18s ease}
.menu-toggle:hover{background:#fff;border-color:rgba(16,16,20,.28)}
.header-cta{display:none}
@media (min-width:640px){.header-cta{display:inline-flex}}
@media (min-width:768px){.status-pill{display:inline-flex}}
@media (min-width:1024px){.main-nav{display:flex}.menu-toggle{display:none}}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--paper)}
.mobile-drawer.is-open{display:block}
.mobile-drawer .container{padding-top:10px;padding-bottom:22px;display:grid;gap:2px}
.drawer-link{display:flex;align-items:center;min-height:44px;padding:0 6px;border-bottom:1px solid var(--line);font-size:15px;font-weight:500}
.drawer-link.is-active{font-weight:700}
.drawer-link.is-active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--signal-ink);background:var(--signal);margin-right:8px}
.drawer-cta{margin-top:16px}
@media (min-width:1024px){.mobile-drawer{display:none !important}}

/* ---------- buttons ---------- */
.ac-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out}
.ac-btn--primary{background:var(--ink);color:var(--signal)}
.ac-btn--primary:hover{background:var(--signal);color:var(--signal-ink);transform:translateY(-2px)}
.ac-btn--primary:active{transform:translateY(0) scale(.99)}
.ac-btn--ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.ac-btn--ghost:hover{background:rgba(16,16,20,.05);transform:translateY(-2px)}
.ac-btn--ghost:active{transform:translateY(0) scale(.99)}
.ac-btn--onDark{border-color:rgba(255,255,255,.30);color:#F6F3EC;background:transparent}
.ac-btn--onDark:hover{border-color:var(--signal);color:var(--signal);transform:translateY(-2px)}
.ac-btn--sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:7px;border-radius:999px;font-size:13px;padding:5px 12px;line-height:1.5;border:1px solid transparent;white-space:nowrap}
.badge i{width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0}
.badge--live{background:var(--signal);color:var(--signal-ink);border-color:transparent}
.badge--live i{background:var(--signal-ink)}
.badge--soon{border-color:rgba(16,16,20,.22);color:#3a3a42;background:transparent}
.badge--end{border-color:var(--alert);color:#C43A20;background:transparent}
.badge--ink{background:var(--ink);color:#F6F3EC}
.badge--ink i{background:var(--signal)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#F6F3EC;isolation:isolate}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.30;z-index:-2}
.hero::before{content:"";position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(16,16,20,.55),rgba(16,16,20,.86)),
  repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 96px),
  repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 96px);
  z-index:-1;pointer-events:none}
.hero-inner{position:relative;display:grid;gap:40px;padding-top:52px;padding-bottom:60px}
.hero-copy>*{animation:fadeUp .65s ease-out both}
.hero-copy>*:nth-child(2){animation-delay:.06s}
.hero-copy>*:nth-child(3){animation-delay:.12s}
.hero-copy>*:nth-child(4){animation-delay:.18s}
.hero-copy>*:nth-child(5){animation-delay:.24s}
.hero h1{margin-top:18px;font-size:clamp(30px,4.6vw,54px);line-height:1.12;letter-spacing:-.02em;font-weight:700;max-width:15ch}
.hero-sub{margin-top:18px;font-size:clamp(15px,1.4vw,17px);line-height:1.8;color:rgba(246,243,236,.78);max-width:34ch}
.hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero-stats{margin-top:36px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;border-top:1px solid var(--line-light);padding-top:22px;max-width:520px}
.hero-stats strong{display:block;font-size:clamp(20px,2.4vw,28px);font-weight:700;letter-spacing:-.02em;color:#F6F3EC;line-height:1.3}
.hero-stats span{display:block;margin-top:4px;font-size:12px;color:rgba(246,243,236,.55);letter-spacing:.04em}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;border:1px solid var(--line-light)}
.hero-note{position:absolute;left:16px;right:16px;bottom:16px;background:rgba(16,16,20,.86);border:1px solid var(--line-light);border-radius:12px;padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;backdrop-filter:blur(4px)}
.hero-note b{display:block;font-size:14px;font-weight:600;color:#F6F3EC}
.hero-note span{font-size:12px;color:rgba(246,243,236,.55)}
.hero-note em{font-style:normal;font-size:13px;font-weight:700;color:var(--signal);white-space:nowrap}
@media (min-width:1024px){
  .hero-inner{grid-template-columns:7fr 5fr;gap:56px;align-items:center;padding-top:84px;padding-bottom:92px}
  .hero-media img{aspect-ratio:3/4}
}

/* ---------- section base ---------- */
.section{padding-top:48px;padding-bottom:48px;border-top:1px solid var(--line)}
.section--plain{border-top:0}
@media (min-width:768px){.section{padding-top:72px;padding-bottom:72px}}
@media (min-width:1024px){.section{padding-top:92px;padding-bottom:92px}}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--ink);opacity:.45}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:30px}
.section-title{font-size:clamp(23px,3vw,38px);line-height:1.18;letter-spacing:-.02em;font-weight:700}
.section-desc{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted);max-width:58ch}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink);border-bottom:1.5px solid var(--signal);padding-bottom:2px;transition:color .18s ease,gap .18s ease}
.text-link:hover{color:#4d5c1a;gap:12px}

/* ---------- feature rows ---------- */
.feature-rows{border-top:1px solid var(--line)}
.feature-row{display:grid;grid-template-columns:1fr;gap:12px;padding:22px 12px;border-bottom:1px solid var(--line);transition:background-color .18s ease}
.feature-row:hover{background:var(--surface)}
.feature-num{font-size:32px;font-weight:700;line-height:1;color:rgba(16,16,20,.22);font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.feature-title{font-size:19px;font-weight:600;line-height:1.4;letter-spacing:-.01em}
.feature-text{margin-top:8px;font-size:15px;line-height:1.8;color:#43434b;max-width:46ch}
.feature-side{display:flex;flex-wrap:wrap;gap:8px;align-content:start}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.02em;color:#3a3a42;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:5px 11px}
@media (min-width:900px){
  .feature-row{grid-template-columns:84px minmax(0,1fr) 280px;gap:32px;padding:28px 18px;align-items:start}
  .feature-num{font-size:40px}
}

/* ---------- version strip ---------- */
.strip-wrap{position:relative}
.strip{display:flex;gap:20px;overflow-x:auto;padding:4px 0 18px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.strip::-webkit-scrollbar{height:0;display:none}
.strip{scrollbar-width:none}
.ver-card{flex:0 0 280px;scroll-snap-align:start;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:16px;transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out}
.ver-card:hover{transform:translateY(-4px);border-color:var(--signal);box-shadow:var(--shadow-card)}
.ver-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;margin-bottom:14px}
.ver-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.ver-code{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--muted);font-family:"Inter",ui-sans-serif}
.ver-title{font-size:17px;font-weight:600;line-height:1.45;letter-spacing:-.01em}
.ver-text{margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ver-foot{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
@media (max-width:640px){.ver-card{flex-basis:240px}}

/* ---------- check panel ---------- */
.check-panel{border:1px solid var(--line);border-radius:20px;background:var(--surface);padding:24px;display:grid;gap:28px}
.check-left h2{font-size:clamp(22px,2.6vw,32px);line-height:1.2;letter-spacing:-.02em;font-weight:700}
.check-left p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted)}
.progress-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.progress-label{font-size:14px;color:#43434b}
.progress-num{display:inline-flex;align-items:baseline;gap:2px;background:var(--ink);color:var(--signal);border-radius:12px;padding:6px 14px;font-size:26px;font-weight:700;line-height:1.2;letter-spacing:-.02em}
.progress-num em{font-style:normal;font-size:14px;font-weight:600}
.track{margin-top:16px;height:8px;border-radius:999px;background:rgba(16,16,20,.08);overflow:hidden}
.track-fill{height:100%;width:75%;border-radius:999px;background:var(--signal);transition:width .6s ease-out}
.milestones{margin-top:22px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.milestone{display:flex;gap:10px;align-items:flex-start}
.milestone i{width:18px;height:18px;border-radius:50%;border:1px solid rgba(16,16,20,.24);display:grid;place-items:center;flex-shrink:0;margin-top:3px}
.milestone.is-done i{background:var(--signal);border-color:var(--signal)}
.milestone b{display:block;font-size:14px;font-weight:600;line-height:1.5}
.milestone span{display:block;font-size:12px;color:var(--muted);line-height:1.6}
@media (min-width:640px){.milestones{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media (min-width:1024px){.check-panel{grid-template-columns:4fr 8fr;gap:52px;padding:40px;align-items:start}}

/* ---------- metrics band ---------- */
.metrics{background:var(--ink);color:#F6F3EC;border-top:1px solid var(--ink)}
.metrics-grid{display:grid;gap:28px;padding-top:44px;padding-bottom:44px}
.metric{border-left:1px solid var(--line-light);padding-left:18px}
.metric-value{font-size:clamp(34px,4.6vw,52px);font-weight:700;line-height:1;letter-spacing:-.03em;color:var(--signal)}
.metric-name{margin-top:8px;font-size:14px;font-weight:600;color:#F6F3EC}
.metric-desc{margin-top:6px;font-size:13px;line-height:1.7;color:rgba(246,243,236,.55)}
@media (min-width:768px){
  .metrics-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:40px;padding-top:60px;padding-bottom:60px}
}

/* ---------- news list ---------- */
.news-list{border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:1fr;gap:8px;padding:20px 10px;border-bottom:1px solid var(--line);transition:background-color .18s ease,transform .18s ease-out}
.news-item:hover{background:var(--surface);transform:translateX(2px)}
.news-cat{align-self:start;justify-self:start;display:inline-flex;font-size:12px;letter-spacing:.04em;color:#3a3a42;background:rgba(16,16,20,.05);border-radius:999px;padding:4px 10px}
.news-title{font-size:18px;font-weight:600;line-height:1.5;letter-spacing:-.01em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{margin-top:6px;font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-time{font-size:13px;color:var(--muted);white-space:nowrap}
.news-empty{border:1px dashed rgba(16,16,20,.22);border-radius:16px;padding:44px 24px;margin-top:24px;display:grid;justify-items:center;gap:12px;text-align:center}
.news-empty p{font-size:14px;color:var(--muted)}
@media (min-width:768px){
  .news-item{grid-template-columns:104px minmax(0,1fr) 130px;gap:22px;align-items:start;padding:22px 14px}
  .news-cat{justify-self:start}
  .news-time{text-align:right}
}
.news-side{border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:20px;margin-top:24px}
.news-side h3{font-size:15px;font-weight:600}
.news-side p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted)}
.news-side .tag{margin-top:14px}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;font-size:17px;font-weight:600;line-height:1.5;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#000}
.faq-icon{flex-shrink:0;transition:transform .2s ease,color .2s ease;color:rgba(16,16,20,.5)}
.faq-item[open] .faq-icon{transform:rotate(45deg);color:#7cae12}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.8;color:#43434b;max-width:720px}
.faq-answer strong{font-weight:600;color:var(--ink)}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--ink);color:#F6F3EC;border-top:1px solid var(--ink)}
.cta-band::before{content:"";position:absolute;width:560px;height:560px;right:-160px;top:-220px;transform:rotate(45deg);background:linear-gradient(135deg,rgba(200,250,75,.16),rgba(200,250,75,0) 70%);pointer-events:none}
.cta-inner{position:relative;padding-top:52px;padding-bottom:52px;display:grid;gap:24px}
.cta-inner h2{font-size:clamp(24px,3vw,38px);line-height:1.18;letter-spacing:-.02em;font-weight:700;max-width:16ch}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(246,243,236,.70);max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
@media (min-width:1024px){
  .cta-inner{grid-template-columns:minmax(0,1fr) auto;align-items:center;padding-top:72px;padding-bottom:72px;gap:48px}
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(246,243,236,.78);font-size:14px}
.footer-top{display:grid;gap:32px;padding-top:44px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{background:rgba(255,255,255,.10);color:var(--signal);border:1px solid var(--line-light)}
.footer-brand .brand-name{color:#F6F3EC}
.footer-brand .brand-sub{color:rgba(246,243,236,.5)}
.footer-intro{margin-top:16px;font-size:13px;line-height:1.8;color:rgba(246,243,236,.55);max-width:34ch}
.footer-status{margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-size:12px;color:rgba(246,243,236,.62);border:1px solid var(--line-light);border-radius:999px;padding:5px 12px}
.footer-title{font-size:12px;letter-spacing:.16em;color:rgba(246,243,236,.45);margin-bottom:12px}
.footer-link{display:inline-block;padding:5px 0;color:rgba(246,243,236,.78);transition:color .18s ease,transform .18s ease-out}
.footer-link:hover{color:var(--signal);transform:translateX(2px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;padding-bottom:22px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(246,243,236,.42)}
.footer-bottom a{color:rgba(246,243,236,.42)}
.footer-bottom a:hover{color:var(--signal)}
@media (min-width:768px){
  .footer-top{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-top:60px;padding-bottom:52px}
}

/* ---------- motion ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
}

/* roulang page: article */
:root{
  --ink:#101014;
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --signal:#C8FA4B;
  --signal-ink:#1A2408;
  --signal-deep:#93B62C;
  --alert:#FF5A3C;
  --muted:#6B6A72;
  --line:rgba(16,16,20,.10);
  --line-strong:rgba(16,16,20,.20);
  --line-dark:rgba(255,255,255,.14);
  --radius-lg:16px;
  --radius-md:12px;
  --shadow-sm:0 1px 0 rgba(16,16,20,.04), 0 12px 32px rgba(16,16,20,.06);
  --shadow-lift:0 1px 0 rgba(16,16,20,.05), 0 18px 40px rgba(16,16,20,.10);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-sans);background:var(--paper);color:var(--ink);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
svg{display:block}
::selection{background:var(--signal);color:var(--signal-ink)}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,243,236,.92);backdrop-filter:saturate(180%) blur(10px);-webkit-backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;min-height:44px}
.brand-mark{width:40px;height:40px;border-radius:var(--radius-md);background:var(--ink);color:var(--signal);display:grid;place-items:center;font-size:18px;font-weight:700;letter-spacing:0;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.06em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:6px 0;font-size:14px;font-weight:500;color:#3A3A40;transition:color .18s var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:2px;background:var(--signal);transform:scaleX(0);transform-origin:left center;transition:transform .22s var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:8px}
.status-badge{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:#3A3A40;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:5px 12px;white-space:nowrap}
.dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(200,250,75,.22);flex:0 0 auto}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);align-items:center;justify-content:center;cursor:pointer;transition:background .18s var(--ease),border-color .18s var(--ease)}
.burger:hover{background:#fff;border-color:var(--line-strong)}
.burger svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round}
.mobile-drawer{position:fixed;left:0;right:0;top:72px;bottom:0;background:var(--paper);border-top:1px solid var(--line);padding:8px 20px 40px;display:none;flex-direction:column;overflow-y:auto;z-index:59}
.mobile-drawer.is-open{display:flex}
.mobile-drawer a.drawer-link{min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);font-size:15px;font-weight:600}
.mobile-drawer a.drawer-link:hover{color:var(--ink)}
.mobile-drawer .drawer-cta{margin-top:24px}
.mobile-drawer .drawer-note{margin-top:16px;font-size:13px;color:var(--muted)}
@media(max-width:1023px){
  .main-nav{display:none}
  .status-badge{display:none}
  .nav-right .btn{display:none}
  .burger{display:inline-flex}
}
@media(max-width:520px){
  .nav-inner{min-height:60px;gap:12px}
  .brand-mark{width:36px;height:36px;border-radius:10px;font-size:16px}
  .brand-name{font-size:14.5px}
  .brand-sub{display:none}
  .mobile-drawer{top:60px}
}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-md);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)}
.btn:active{transform:translateY(0) scale(.99)}
.btn-primary{background:var(--ink);color:var(--signal)}
.btn-primary:hover{background:var(--signal);color:var(--signal-ink);transform:translateY(-2px);box-shadow:0 10px 24px rgba(16,16,20,.14)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:rgba(16,16,20,.05);transform:translateY(-2px)}
.btn-signal{background:var(--signal);color:var(--signal-ink);border:1px solid var(--signal)}
.btn-signal:hover{background:#D8FF6B;transform:translateY(-2px)}
.btn-light-outline{background:transparent;color:#F6F3EC;border:1px solid rgba(255,255,255,.34)}
.btn-light-outline:hover{background:rgba(255,255,255,.10);border-color:#fff;transform:translateY(-2px)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}

/* ---------- 文章头部 ---------- */
.article-head{padding-top:40px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);line-height:1.6}
.breadcrumb a{transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--ink)}
.crumb-sep{opacity:.45}
.crumb-current{color:#3A3A40;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:clamp(26px,3.4vw,40px);line-height:1.22;font-weight:700;letter-spacing:-.02em;margin:20px 0 18px;max-width:24em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.meta-sep{opacity:.45}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:12px;letter-spacing:.05em;line-height:1.6}
.badge-signal{background:rgba(200,250,75,.55);color:var(--signal-ink);font-weight:600}
.badge-outline{border:1px solid var(--line-strong);color:#3A3A40}
.article-rule{height:1px;background:var(--line);margin-top:28px}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;padding-top:36px}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,720px) 280px;justify-content:center;gap:64px;padding-top:48px}
}

/* ---------- 正文排版 ---------- */
.article-body{font-size:16.5px;line-height:1.85;color:#1C1C22;word-break:break-word}
.article-body > *{margin-top:20px;margin-bottom:0}
.article-body > *:first-child{margin-top:0}
.article-body p{margin-top:20px;margin-bottom:0}
.article-body h2{font-size:clamp(20px,2.1vw,24px);line-height:1.4;font-weight:700;letter-spacing:-.01em;margin-top:44px;position:relative;padding-left:16px}
.article-body h2::before{content:"";position:absolute;left:0;top:.36em;width:4px;height:18px;border-radius:2px;background:var(--signal)}
.article-body h3{font-size:19px;line-height:1.5;font-weight:700;margin-top:30px}
.article-body h4{font-size:17px;font-weight:700;margin-top:24px}
.article-body ul,.article-body ol{margin-top:18px;padding-left:0;list-style:none}
.article-body ol{counter-reset:olnum;padding-left:0}
.article-body ul > li{position:relative;padding-left:20px;margin-top:10px}
.article-body ul > li::before{content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;background:var(--signal-deep);border-radius:1px}
.article-body ol > li{position:relative;padding-left:28px;margin-top:10px;counter-increment:olnum}
.article-body ol > li::before{content:counter(olnum,decimal-leading-zero);position:absolute;left:0;top:0;font-family:var(--font-mono);font-size:12px;color:var(--muted);line-height:2.1}
.article-body blockquote{margin-top:26px;padding:18px 22px;border-left:3px solid var(--signal);background:rgba(200,250,75,.10);border-radius:0 12px 12px 0;color:#232329}
.article-body blockquote p{margin-top:0}
.article-body img{border-radius:12px;margin-top:26px}
.article-body figure{margin-top:26px}
.article-body figure img{margin-top:0}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.7}
.article-body table{width:100%;border-collapse:collapse;margin-top:26px;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body thead th{background:rgba(16,16,20,.04);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(16,16,20,.03)}
.article-body code{font-family:var(--font-mono);font-size:.92em;background:rgba(16,16,20,.06);padding:2px 6px;border-radius:6px}
.article-body a{color:var(--ink);border-bottom:1px solid var(--signal);transition:background .18s var(--ease)}
.article-body a:hover{background:rgba(200,250,75,.40)}
.article-body hr{border:0;height:1px;background:var(--line);margin-top:32px}
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
.article-foot-note{font-size:13px;color:var(--muted);margin:0;max-width:46ch}

/* ---------- 空态 ---------- */
.empty-state{border:1px dashed var(--line-strong);border-radius:var(--radius-lg);background:var(--surface);padding:48px 24px;text-align:center}
.empty-state svg{width:36px;height:36px;margin:0 auto 16px;stroke:var(--muted);fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.empty-title{font-size:18px;font-weight:700;margin:0 0 8px}
.empty-desc{font-size:14px;color:var(--muted);margin:0 auto 20px;max-width:40ch}

/* ---------- 侧栏 ---------- */
.article-aside{display:flex;flex-direction:column;gap:20px}
@media(min-width:1024px){.article-aside{position:sticky;top:100px;align-self:start}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-sm)}
.panel-title{font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--muted);margin:0 0 12px}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc-list a{display:block;padding:9px 12px;border-left:2px solid transparent;border-radius:0 8px 8px 0;font-size:14px;color:#3A3A40;transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease)}
.toc-list a:hover{background:rgba(16,16,20,.045);border-left-color:var(--signal);color:var(--ink)}
.toc-list a.is-current{border-left-color:var(--signal);color:var(--ink);font-weight:600}
.panel p.panel-text{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 16px}
.panel .btn{width:100%}

/* ---------- 板块 ---------- */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:80px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:30px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.18em;color:var(--muted);margin:0 0 12px}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--ink);opacity:.35}
.h2{font-size:clamp(23px,2.6vw,32px);line-height:1.2;font-weight:700;letter-spacing:-.01em;margin:0}
.section-sub{font-size:14.5px;color:var(--muted);margin:10px 0 0;max-width:58ch}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;min-height:44px;transition:color .18s var(--ease)}
.link-more svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s var(--ease)}
.link-more:hover{color:#000}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.card-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}}
.entry-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)}
.entry-card:hover{transform:translateY(-4px);border-color:var(--signal);box-shadow:var(--shadow-lift)}
.entry-thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#EFEBE0,#E2DDD0)}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}
.entry-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.entry-title{font-size:18px;line-height:1.5;font-weight:600;margin:0}
.entry-desc{font-size:14px;line-height:1.72;color:var(--muted);margin:0}
.entry-foot{margin-top:auto;padding-top:8px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.entry-foot svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s var(--ease)}
.entry-card:hover .entry-foot svg{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:44px;padding:20px 0;font-size:16.5px;font-weight:600;line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:0 0 auto;width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;transition:transform .22s var(--ease),color .22s var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--signal-deep)}
.faq-item summary:hover{color:#000}
.faq-a{padding:0 0 22px;font-size:15px;line-height:1.78;color:#3A3A40;max-width:720px}
.faq-a p{margin:0}
.faq-a p + p{margin-top:10px}

/* ---------- CTA 横幅 ---------- */
.cta-band{position:relative;background:var(--ink);color:#F6F3EC;overflow:hidden;margin-top:16px}
.cta-band::after{content:"";position:absolute;right:-12%;top:-70%;width:58%;height:240%;background:linear-gradient(90deg,rgba(200,250,75,0),rgba(200,250,75,.10));transform:rotate(18deg);pointer-events:none}
.cta-inner{position:relative;z-index:1;padding:56px 0;display:grid;gap:26px}
@media(min-width:768px){.cta-inner{padding:72px 0}}
@media(min-width:900px){.cta-inner{grid-template-columns:1fr auto;align-items:center;gap:40px}}
.cta-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:rgba(255,255,255,.55);margin:0 0 14px}
.cta-band h2{font-size:clamp(23px,3vw,34px);line-height:1.22;font-weight:700;letter-spacing:-.01em;color:#fff;margin:0}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.68);margin:14px 0 0;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-meta{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:12.5px;color:rgba(255,255,255,.55);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:5px 12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#F1EEE6;padding-top:60px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1fr;gap:34px;padding-bottom:44px}
@media(min-width:640px){.footer-top{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-top{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:inline-flex;align-items:center;gap:12px;min-height:44px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);color:var(--signal);border:1px solid rgba(255,255,255,.16)}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.48)}
.footer-intro{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:16px 0 18px;max-width:34ch}
.footer-status{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:rgba(255,255,255,.66);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:5px 12px}
.footer-title{font-size:12px;font-weight:600;letter-spacing:.16em;color:rgba(255,255,255,.45);margin:0 0 16px}
.site-footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-link{display:inline-block;font-size:14px;color:rgba(255,255,255,.72);transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-link:hover{color:var(--signal);transform:translateX(2px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.42)}

/* ---------- 动效 ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.fade-up{animation:fadeUp .6s var(--ease) both}
.d1{animation-delay:.06s}
.d2{animation-delay:.14s}
.d3{animation-delay:.22s}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-delay:0ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --ink:#101014;
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --signal:#C8FA4B;
  --signal-ink:#1A2408;
  --alert:#FF5A3C;
  --muted:#6B6A72;
  --line:rgba(16,16,20,.10);
  --line-strong:rgba(16,16,20,.18);
  --radius-card:16px;
  --radius-btn:12px;
  --shadow:0 1px 0 rgba(16,16,20,.04),0 12px 32px rgba(16,16,20,.06);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
body.no-scroll{overflow:hidden}
img{display:block;max-width:100%;border:0}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none;margin:0;padding:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,243,236,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--signal);display:grid;place-items:center;font-size:17px;font-weight:700;line-height:1;letter-spacing:0}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:15px;font-weight:700;letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.12em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:10px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:10px;font-size:14.5px;font-weight:500;color:#3c3c44;transition:color .18s ease,background .18s ease}
.nav-link:hover{color:var(--ink);background:rgba(16,16,20,.05)}
.nav-link.is-active{color:var(--ink);font-weight:700;background:rgba(16,16,20,.05)}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:3px;background:var(--signal)}
.header-side{display:flex;align-items:center;gap:12px;margin-left:auto}
.status-badge{display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 12px;border:1px solid var(--line-strong);border-radius:999px;font-size:13px;color:var(--muted);background:rgba(255,255,255,.6);white-space:nowrap}
.dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(200,250,75,.35);flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;place-items:center;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface)}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;line-height:1;white-space:nowrap;transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease}
.btn-primary{background:var(--ink);color:var(--signal)}
.btn-primary:hover{background:var(--signal);color:var(--signal-ink);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{background:transparent;border:1.5px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(16,16,20,.05);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.99)}
.btn-signal{background:var(--signal);color:var(--signal-ink)}
.btn-signal:hover{background:#f6f3ec;color:var(--ink);transform:translateY(-2px)}
.btn-signal:active{transform:translateY(0) scale(.99)}
.btn-ghost-dark{background:transparent;border:1.5px solid rgba(255,255,255,.42);color:#fff}
.btn-ghost-dark:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-ghost-dark:active{transform:translateY(0) scale(.99)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-lg{height:56px;padding:0 30px}

/* ---------- mobile drawer ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:90;background:var(--paper);padding:88px 20px 36px;display:none;overflow-y:auto}
.mobile-drawer.is-open{display:block}
.drawer-label{font-size:12px;letter-spacing:.14em;color:var(--muted);margin:0 0 12px}
.drawer-link{display:flex;align-items:center;height:52px;font-size:16px;font-weight:500;border-bottom:1px solid var(--line);transition:color .18s}
.drawer-link:hover{color:var(--ink)}
.drawer-link.is-active{font-weight:700;color:var(--ink);box-shadow:inset 3px 0 0 var(--signal);padding-left:12px}
.drawer-cta{width:100%;margin-top:26px}
.drawer-close{position:absolute;top:22px;right:20px;width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface);font-size:20px;line-height:1}

/* ---------- hero ---------- */
.page-hero{position:relative;padding:clamp(36px,5vw,60px) 0 clamp(40px,5vw,64px);border-bottom:1px solid var(--line);background:linear-gradient(180deg,#FBF9F4 0%,var(--paper) 70%);overflow:hidden}
.page-hero::before{content:"";position:absolute;right:-10%;top:-40%;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(200,250,75,.22),transparent 66%);pointer-events:none}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin:0 0 26px}
.crumbs a{transition:color .18s}
.crumbs a:hover{color:var(--ink)}
.crumbs .sep{opacity:.45}
.crumbs .current{color:#43434a}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:52px}}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.14em;color:var(--muted);margin:0}
.eyebrow::before{content:"";width:26px;height:1.5px;background:var(--ink);opacity:.45}
.page-title{margin:14px 0 0;font-size:clamp(30px,3.6vw,40px);line-height:1.16;letter-spacing:-.02em;font-weight:700}
.hero-lead{margin:18px 0 0;font-size:15.5px;line-height:1.85;color:#43434a;max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-note{margin:18px 0 0;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap}

.spec-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow)}
.spec-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.spec-card-title{font-size:14px;font-weight:700;letter-spacing:.02em;margin:0}
.spec-card-tag{font-size:12px;letter-spacing:.06em;color:var(--muted)}
.spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
.spec-row:last-child{border-bottom:0;padding-bottom:0}
.spec-key{color:var(--muted);flex:0 0 auto}
.spec-val{font-weight:600;text-align:right;line-height:1.5}

.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.chip{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--line-strong);background:var(--surface);color:#43434a;font-size:13.5px;font-weight:500;transition:background .18s ease,color .18s ease,border-color .18s ease}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.is-on{background:var(--ink);color:var(--paper);border-color:var(--ink);font-weight:600}

/* ---------- sections ---------- */
.section{padding:clamp(48px,6vw,88px) 0}
.section + .section{border-top:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.section-title{margin:12px 0 0;font-size:clamp(24px,3vw,34px);line-height:1.2;letter-spacing:-.015em;font-weight:700}
.section-desc{margin:12px 0 0;font-size:15px;line-height:1.85;color:var(--muted);max-width:34em}

/* ---------- feature cards ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}
.f-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:transform .18s ease-out,border-color .18s ease,box-shadow .18s ease}
.f-card:hover{transform:translateY(-4px);border-color:var(--signal);box-shadow:0 1px 0 rgba(16,16,20,.04),0 18px 40px rgba(16,16,20,.10)}
.f-card-media{aspect-ratio:16/9;background:var(--paper);overflow:hidden}
.f-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.f-card:hover .f-card-media img{transform:scale(1.04)}
.f-card-body{display:flex;flex-direction:column;gap:10px;padding:20px 24px 22px;flex:1}
.tag{display:inline-flex;align-items:center;align-self:flex-start;height:24px;padding:0 10px;border-radius:999px;background:rgba(16,16,20,.06);color:#43434a;font-size:12px;letter-spacing:.04em;font-weight:600}
.f-card-title{margin:0;font-size:19px;line-height:1.45;font-weight:600}
.f-card-text{margin:0;font-size:14.5px;line-height:1.78;color:var(--muted)}
.card-more{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:6px;font-size:14px;font-weight:600;color:var(--ink)}
.card-more svg{transition:transform .18s ease}
.f-card:hover .card-more svg{transform:translateX(3px)}

/* ---------- spec table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface)}
.spec-table{width:100%;min-width:680px;border-collapse:collapse}
.spec-table th{padding:15px 20px;text-align:left;font-size:12.5px;letter-spacing:.12em;font-weight:600;color:var(--muted);background:rgba(16,16,20,.03);border-bottom:1px solid var(--line);white-space:nowrap}
.spec-table td{padding:0 20px;height:58px;font-size:14.5px;border-bottom:1px solid var(--line);vertical-align:middle}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr:nth-child(even){background:rgba(16,16,20,.022)}
.spec-table td:first-child{font-weight:600}
.spec-table .num{font-variant-numeric:tabular-nums;color:#43434a}
.pill{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12.5px;font-weight:600;white-space:nowrap}
.pill-yes{background:rgba(200,250,75,.55);color:var(--signal-ink)}
.pill-part{background:rgba(16,16,20,.06);color:#43434a}
.pill-no{background:rgba(255,90,60,.10);color:#B3361F}

/* ---------- quote band ---------- */
.quote-band{background:var(--ink);color:#F3F1EA;padding:clamp(48px,6vw,84px) 0;position:relative;overflow:hidden}
.quote-band::after{content:"";position:absolute;left:-6%;bottom:-50%;width:520px;height:420px;background:radial-gradient(circle,rgba(200,250,75,.13),transparent 68%);pointer-events:none}
.quote-inner{position:relative;display:grid;grid-template-columns:1fr;gap:36px;align-items:start}
@media (min-width:960px){.quote-inner{grid-template-columns:5fr 7fr;gap:56px}}
.quote-band .eyebrow{color:rgba(255,255,255,.55)}
.quote-band .eyebrow::before{background:var(--signal);opacity:.9}
.quote-title{margin:14px 0 0;font-size:clamp(24px,3vw,34px);line-height:1.22;font-weight:700;color:#fff;letter-spacing:-.015em}
.quote-sub{margin:14px 0 0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.55);max-width:28em}
.quote-list{display:grid;gap:22px}
.quote-item{padding-left:18px;border-left:2px solid var(--signal)}
.quote-text{margin:0;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.88)}
.quote-from{margin:10px 0 0;font-size:13px;color:rgba(255,255,255,.48)}

/* ---------- faq ---------- */
.faq{max-width:800px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-of-type{border-top:1px solid var(--line)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 0;list-style:none;cursor:pointer;font-size:16.5px;font-weight:600;line-height:1.6;transition:color .18s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#000}
.faq-icon{flex:0 0 auto;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);color:var(--ink);transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.faq-icon svg{width:12px;height:12px}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--signal);border-color:var(--signal);color:var(--signal-ink)}
.faq-answer{padding:0 0 24px;font-size:15px;line-height:1.85;color:#43434a;max-width:720px}
.faq-answer strong{font-weight:600;color:var(--ink)}

/* ---------- cta ---------- */
.cta-band{background:var(--ink);color:#fff;padding:clamp(48px,6vw,80px) 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-8%;top:-40%;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(200,250,75,.16),transparent 64%);pointer-events:none}
.cta-band::after{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(200,250,75,.55),transparent)}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:900px){.cta-inner{grid-template-columns:1.35fr .85fr}}
.cta-band .eyebrow{color:rgba(255,255,255,.55)}
.cta-band .eyebrow::before{background:var(--signal);opacity:.9}
.cta-title{margin:14px 0 0;font-size:clamp(24px,3.2vw,36px);line-height:1.2;font-weight:700;color:#fff;letter-spacing:-.015em}
.cta-text{margin:14px 0 0;font-size:15px;line-height:1.85;color:rgba(255,255,255,.66);max-width:30em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-side{display:flex;justify-content:flex-start}
@media (min-width:900px){.cta-side{justify-content:flex-end}}
.cta-status{display:inline-flex;flex-direction:column;gap:8px;padding:18px 22px;border:1px solid rgba(255,255,255,.16);border-radius:14px;background:rgba(255,255,255,.04);min-width:200px}
.cta-status-label{font-size:12px;letter-spacing:.12em;color:rgba(255,255,255,.45)}
.cta-status-value{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:600;color:#fff}
.cta-status-hint{font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.85);padding:64px 0 0}
.footer-top{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:46px}
@media (min-width:768px){.footer-top{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-top{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:inline-flex;align-items:center;gap:10px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:var(--signal)}
.footer-brand .brand-name{color:#fff;font-size:15px;font-weight:700}
.footer-brand .brand-sub{color:rgba(255,255,255,.45)}
.footer-intro{margin:16px 0 0;font-size:14px;line-height:1.8;color:rgba(255,255,255,.58);max-width:30em}
.footer-status{display:inline-flex;align-items:center;gap:8px;margin-top:16px;padding:6px 12px;border:1px solid rgba(255,255,255,.16);border-radius:999px;font-size:13px;color:rgba(255,255,255,.6)}
.footer-title{margin:0 0 14px;font-size:13px;letter-spacing:.12em;font-weight:600;color:rgba(255,255,255,.42)}
.footer-link{display:inline-block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.76);transition:color .18s ease,transform .18s ease}
.footer-link:hover{color:var(--signal);transform:translateX(2px)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.42)}

/* ---------- motion ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.fade-up{animation:fadeUp .6s ease-out both}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}
@media (max-width:1023px){
  .main-nav,.status-badge,.header-cta{display:none}
  .nav-toggle{display:grid}
  .header-inner{height:60px}
}
@media (max-width:520px){
  .spec-card{padding:18px 18px}
  .spec-row{font-size:13.5px}
  .f-card-body{padding:18px 18px 20px}
  .card-grid{gap:18px}
  .cta-status{width:100%}
}

/* roulang page: category2 */
:root{
  --ink:#101014;
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --signal:#C8FA4B;
  --signal-ink:#1A2408;
  --alert:#FF5A3C;
  --muted:#6B6A72;
  --line:rgba(16,16,20,.10);
  --line-dark:rgba(255,255,255,.14);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow:0 1px 0 rgba(16,16,20,.04),0 12px 32px rgba(16,16,20,.06);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:radial-gradient(rgba(16,16,20,.035) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.55;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul{list-style:none;padding:0}
.container{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media(min-width:768px){.container{padding:0 32px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,243,236,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:72px;display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--ink);color:var(--signal);
  display:grid;place-items:center;font-size:19px;font-weight:700;letter-spacing:0;
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:15px;font-weight:700;letter-spacing:-.01em}
.brand-sub{font-size:10.5px;letter-spacing:.14em;color:var(--muted);margin-top:3px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{
  position:relative;font-size:14px;font-weight:500;color:var(--ink);
  padding:6px 0;transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--signal);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link:focus-visible{outline:2px solid var(--signal);outline-offset:4px;border-radius:4px}
.header-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.status-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--muted);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:5px 13px;background:rgba(255,255,255,.6);
  white-space:nowrap;
}
.status-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(200,250,75,.28)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--ink);color:var(--signal);border-color:var(--ink)}
.btn-primary:hover{background:var(--signal);color:var(--signal-ink);border-color:var(--signal);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-secondary{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-secondary:hover{background:rgba(16,16,20,.05);transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(0) scale(.99)}
.btn:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:rgba(255,255,255,.7);align-items:center;justify-content:center;
}
.menu-toggle:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
.menu-toggle svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:1.6}

/* mobile drawer */
.mobile-drawer{
  display:none;position:fixed;inset:0;z-index:90;background:var(--paper);
  flex-direction:column;padding:22px 20px 32px;overflow-y:auto;
}
.mobile-drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;
  display:grid;place-items:center;
}
.drawer-close svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:1.6}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-link{
  min-height:44px;display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;border-bottom:1px solid var(--line);font-size:16px;font-weight:500;
}
.drawer-link.is-active{font-weight:700}
.drawer-link.is-active::after{content:"";width:7px;height:7px;border-radius:50%;background:var(--signal)}
.drawer-cta{margin-top:24px}

/* ---------- Section basics ---------- */
.section{padding:48px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--ink);opacity:.45}
.h2{font-size:clamp(26px,3vw,40px);font-weight:700;line-height:1.15;letter-spacing:-.02em;margin-top:14px}
.lead{font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- Hero split ---------- */
.hero-split{padding-top:44px;padding-bottom:8px}
.split{
  display:grid;grid-template-columns:1fr;gap:36px;align-items:start;
}
@media(min-width:1024px){
  .split{grid-template-columns:5fr 7fr;gap:64px}
}
.split-side{position:relative}
@media(min-width:1024px){
  .split-side{position:sticky;top:104px}
}
.hero-h1{
  font-size:clamp(30px,4.4vw,44px);font-weight:700;line-height:1.14;letter-spacing:-.02em;
  margin-top:18px;
}
.hero-h1 .mark{position:relative;display:inline-block}
.hero-h1 .mark::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:9px;background:var(--signal);
  z-index:-1;border-radius:2px;
}
.hero-desc{font-size:15px;line-height:1.85;color:var(--muted);margin-top:20px;max-width:430px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;border-radius:var(--r-pill);padding:5px 13px;
  border:1px solid var(--line);color:var(--muted);background:rgba(255,255,255,.7);
}
.pill.solid{background:var(--ink);color:#F6F3EC;border-color:var(--ink)}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--signal)}
.pill.alert{border-color:rgba(255,90,60,.45);color:#B8321A}
.pill.alert .dot{background:var(--alert)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.side-figure{margin-top:32px;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--surface)}
.side-figure img{width:100%;height:190px;object-fit:cover;border-radius:0}
.side-figure figcaption{font-size:12.5px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--line)}

/* ---------- Entry list ---------- */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:8px}
.list-title{font-size:20px;font-weight:700;letter-spacing:-.01em}
.list-sub{font-size:13px;color:var(--muted)}
.entry-list{display:flex;flex-direction:column;margin-top:16px}
.entry{
  display:grid;grid-template-columns:40px 1fr;gap:18px;
  padding:24px 10px;border-top:1px solid var(--line);
  transition:background-color .18s ease,transform .18s ease;
  border-radius:10px;
}
.entry:last-child{border-bottom:1px solid var(--line)}
.entry:hover{background:var(--surface);transform:translateY(-2px)}
.entry-num{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:12px;letter-spacing:.08em;color:var(--muted);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;flex-shrink:0;
}
.entry:hover .entry-num{background:var(--signal);border-color:var(--signal);color:var(--signal-ink);font-weight:700}
.entry-title{font-size:18px;font-weight:600;line-height:1.45;letter-spacing:-.01em}
.entry-desc{font-size:14.5px;line-height:1.8;color:var(--muted);margin-top:8px}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{
  font-size:11.5px;letter-spacing:.06em;color:var(--muted);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:3px 10px;
  background:rgba(255,255,255,.6);
}

/* ---------- Data strip ---------- */
.datastrip{background:var(--ink);color:#F6F3EC;padding:44px 0}
@media(min-width:768px){.datastrip{padding:56px 0}}
.datastrip-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){
  .datastrip-grid{grid-template-columns:repeat(3,1fr);gap:0}
  .data-cell{padding:0 32px;border-left:1px solid var(--line-dark)}
  .data-cell:first-child{border-left:none;padding-left:0}
  .data-cell:last-child{padding-right:0}
}
.data-num{font-size:clamp(36px,4.2vw,48px);font-weight:700;line-height:1;color:var(--signal);letter-spacing:-.03em}
.data-label{font-size:15px;font-weight:600;margin-top:12px}
.data-note{font-size:13px;color:rgba(255,255,255,.55);margin-top:6px;line-height:1.7}

/* ---------- Prep / kv ---------- */
.prep-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
@media(min-width:1024px){.prep-grid{grid-template-columns:5fr 7fr;gap:56px}}
.prep-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.prep-figure img{width:100%;height:300px;object-fit:cover;border-radius:0}
.kv{margin-top:28px;border-top:1px solid var(--line)}
.kv-row{
  display:grid;grid-template-columns:1fr;gap:6px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
@media(min-width:640px){
  .kv-row{grid-template-columns:180px 1fr;gap:24px;align-items:baseline}
}
.kv dt{font-size:13px;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}
.kv dd{font-size:15px;font-weight:600;line-height:1.75}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin-top:32px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 4px;font-size:16.5px;font-weight:600;line-height:1.6;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#000}
.faq-item summary:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:6px}
.faq-icon{width:22px;height:22px;flex-shrink:0;margin-top:3px;transition:transform .22s ease}
.faq-icon svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:1.5}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] .faq-icon svg{stroke:#8BC22A}
.faq-answer{font-size:15px;line-height:1.8;color:var(--muted);padding:0 4px 24px;max-width:720px}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:#F6F3EC;position:relative;overflow:hidden;border-radius:0}
.cta-band::after{
  content:"";position:absolute;top:-40%;right:-10%;width:60%;height:180%;
  background:linear-gradient(90deg,transparent,rgba(200,250,75,.10));
  transform:rotate(20deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media(min-width:1024px){.cta-inner{grid-template-columns:7fr 5fr;gap:48px}}
.cta-title{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.2;letter-spacing:-.02em}
.cta-text{font-size:15px;color:rgba(255,255,255,.66);margin-top:14px;line-height:1.8;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
@media(min-width:1024px){.cta-actions{justify-content:flex-end}}
.btn-ghost-light{background:transparent;color:#F6F3EC;border:1.5px solid rgba(255,255,255,.35)}
.btn-ghost-light:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.6);transform:translateY(-2px)}
.cta-note{width:100%;font-size:12.5px;color:rgba(255,255,255,.5);margin-top:2px}

/* ---------- Back link ---------- */
.back-row{display:flex;align-items:center;gap:10px;padding:28px 0 0}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  color:var(--ink);transition:color .18s ease,transform .18s ease;
}
.back-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .18s ease}
.back-link:hover{color:#5C7A14}
.back-link:hover svg{transform:translateX(-3px)}
.back-link:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:4px}
.back-sep{color:var(--muted);font-size:13px}
.back-link.sub{font-weight:500;color:var(--muted)}
.back-link.sub:hover{color:var(--ink)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#F6F3EC;margin-top:72px;padding-top:64px;position:relative;z-index:1}
.footer-top{
  display:grid;grid-template-columns:1fr;gap:40px;padding-bottom:48px;
}
@media(min-width:768px){.footer-top{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-top{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px}}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand .brand-mark{background:var(--signal);color:var(--signal-ink)}
.footer-brand .brand-name{color:#F6F3EC}
.footer-brand .brand-sub{color:rgba(255,255,255,.45)}
.footer-intro{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin-top:20px;max-width:340px}
.footer-status{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:rgba(255,255,255,.55);margin-top:18px}
.footer-status .dot{width:6px;height:6px;border-radius:50%;background:var(--signal)}
.footer-title{font-size:12.5px;letter-spacing:.14em;color:rgba(255,255,255,.45);text-transform:uppercase;margin-bottom:16px}
.footer-link{
  display:inline-block;font-size:14px;color:rgba(255,255,255,.78);padding:6px 0;
  transition:color .18s ease,transform .18s ease;
}
.footer-link:hover{color:var(--signal);transform:translateX(2px)}
.footer-link:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:4px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid var(--line-dark);padding:22px 20px 30px;
  font-size:12.5px;color:rgba(255,255,255,.4);
}
@media(min-width:768px){.footer-bottom{padding:22px 32px 30px}}

/* ---------- Motion ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.fade-up{animation:fadeUp .6s ease-out both}
.d1{animation-delay:.06s}.d2{animation-delay:.12s}.d3{animation-delay:.18s}.d4{animation-delay:.24s}.d5{animation-delay:.3s}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .fade-up{opacity:1;transform:none}
}

/* ---------- Responsive header ---------- */
@media(max-width:1023px){
  .main-nav{display:none}
  .header-right .status-badge{display:none}
  .header-right .btn-primary{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:60px;gap:16px}
}
@media(max-width:640px){
  .brand-name{font-size:13.5px}
  .brand-sub{display:none}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column}
  .side-figure img{height:160px}
  .prep-figure img{height:200px}
}