/* roulang page: index */
:root{
  --ink:#0F3A34;
  --night:#0A2420;
  --mint:#2EE6A8;
  --coral:#FF7A45;
  --bg:#F7F5F0;
  --paper:#FFFFFF;
  --mist:#EFF3F1;
  --line:#E5E1D8;
  --text:#131A19;
  --sub:#5C6A67;
  --muted:#8A9693;
  --inverse:#F1F5F3;
  --ok:#2E9E6B;
  --warn:#D89A2B;
  --err:#D4503C;
  --info:#3E7F8C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --sh-1:0 1px 2px rgba(15,58,52,.04);
  --sh-2:0 10px 30px rgba(15,58,52,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.22,.61,.36,1);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --mono:"Space Grotesk","Inter",ui-monospace,"SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:4px}
.container{max-width:1240px;margin:0 auto;padding:0 40px}
.section{padding:104px 0}
.section--mist{background:var(--mist)}
.section--paper{background:var(--paper)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px}
.section-title{font-size:38px;line-height:1.22;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.section-desc{margin-top:12px;font-size:16px;color:var(--sub);max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;letter-spacing:.06em;color:var(--ink);
  background:rgba(46,230,168,.14);
  border:1px solid rgba(46,230,168,.4);
  border-radius:999px;padding:6px 14px;font-weight:500;
}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--ink);
  white-space:nowrap;transition:color .22s var(--ease);
}
.link-more .arw{transition:transform .22s var(--ease)}
.link-more:hover{color:#0d7a5f}
.link-more:hover .arw{transform:translateX(3px)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-sm);
  font-size:15.5px;font-weight:500;line-height:1;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .18s var(--ease),box-shadow .22s var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn .arw{transition:transform .22s var(--ease)}
.btn:hover .arw{transform:translateX(3px)}
.btn:active{transform:scale(.985)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}
.btn-primary{background:var(--ink);color:var(--inverse)}
.btn-primary:hover{background:var(--mint);color:#06231C}
.btn-ghost{background:transparent;border:1.5px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(15,58,52,.06);border-color:var(--ink)}
.btn-dark{background:var(--mint);color:#06231C}
.btn-dark:hover{background:#7CF3C6;color:#06231C}
.btn-outline-light{background:transparent;border:1.5px solid rgba(255,255,255,.5);color:var(--inverse)}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-sm{height:40px;padding:0 20px;font-size:14.5px}
.btn-lg{height:54px;padding:0 32px;font-size:16.5px}
.btn.is-loading{pointer-events:none;opacity:.75}
.spinner{width:16px;height:16px;border-radius:50%;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== 导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:transparent;border-bottom:1px solid transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.scrolled{background:rgba(255,255,255,.96);border-bottom-color:var(--line);box-shadow:0 4px 20px rgba(15,58,52,.05);backdrop-filter:blur(8px)}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;transition:height .24s var(--ease);
}
.site-header.scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:var(--r-xs);
  background:linear-gradient(140deg,var(--ink) 0%,#14655A 100%);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16.5px;font-weight:700;color:var(--ink);letter-spacing:.005em}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.08em;font-family:var(--mono)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;padding-left:20px;border-left:1px solid var(--line)}
.nav-link{
  position:relative;padding:8px 14px;font-size:15px;color:var(--sub);border-radius:var(--r-xs);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(15,58,52,.05)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--mint);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-sm);display:grid;place-items:center;
  border:1px solid var(--line);background:var(--paper);color:var(--ink);
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.icon-btn:hover{border-color:var(--ink);background:rgba(15,58,52,.04)}
.icon-btn svg{width:18px;height:18px}
.menu-toggle{display:none}
.search-panel{
  position:absolute;top:calc(100% + 8px);right:40px;width:340px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:16px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.search-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
.search-field{display:flex;gap:8px}
.search-field input{
  flex:1 1 auto;height:48px;border-radius:var(--r-sm);border:1px solid var(--line);
  padding:0 16px;background:var(--paper);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-field input::placeholder{color:var(--muted)}
.search-field input:focus{outline:none;border-color:var(--mint);box-shadow:0 0 0 3px rgba(46,230,168,.18)}
.search-hint{margin-top:10px;font-size:13px;color:var(--muted)}
.scrim{position:fixed;inset:0;background:rgba(10,36,32,.45);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s;z-index:90}
.scrim.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:88vw;background:var(--paper);z-index:100;
  transform:translateX(100%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:24px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:20px 0}
.drawer-nav a{padding:12px 12px;border-radius:var(--r-sm);font-size:16px;color:var(--sub);transition:background-color .2s var(--ease),color .2s var(--ease)}
.drawer-nav a:hover{background:var(--mist);color:var(--ink)}
.drawer-nav a.active{background:var(--mist);color:var(--ink);font-weight:600}
.drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:20px;border-top:1px solid var(--line)}
.drawer-note{font-size:13px;color:var(--muted);line-height:1.6}

/* ===== Hero ===== */
.hero{position:relative;padding:136px 0 72px;background:var(--bg);overflow:hidden}
.hero::before{
  content:"";position:absolute;top:0;left:0;width:52%;height:100%;
  background:radial-gradient(90% 70% at 8% 12%,rgba(46,230,168,.10) 0%,rgba(46,230,168,0) 70%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.hero-copy{max-width:560px}
.hero h1{
  margin-top:20px;font-size:60px;line-height:1.08;letter-spacing:-.02em;font-weight:800;color:var(--ink);
}
.hero-sub{margin-top:24px;font-size:17px;line-height:1.8;color:var(--sub)}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:32px;font-size:13.5px;color:var(--sub)}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--muted)}
.hero-visual{position:relative}
.hero-media{
  position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh-2);
  aspect-ratio:16/12;background:var(--mist);
}
.hero-media img{width:100%;height:100%;object-fit:cover;transform:scale(1.06);animation:heroZoom .6s var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,36,32,0) 45%,rgba(10,36,32,.62) 100%);
}
.hero-media figcaption{
  position:absolute;left:20px;bottom:16px;color:rgba(255,255,255,.86);font-size:13px;z-index:2;
}
.float-card{
  position:absolute;left:-24px;bottom:-28px;width:280px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:20px;
  animation:floatIn .5s var(--ease) .15s both;
}
.float-card h3{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:12px}
.float-row{display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--sub);padding:6px 0}
.float-row strong{color:var(--ink);font-weight:600}
.status-dot{display:inline-flex;align-items:center;gap:6px}
.status-dot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(46,158,107,.16)}
.float-card .btn{margin-top:14px;width:100%}
@keyframes floatIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.tag-strip{
  display:flex;gap:12px;overflow-x:auto;padding:6px 0 10px;margin-top:56px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.tag-strip::-webkit-scrollbar{display:none}
.tag{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:999px;padding:9px 18px;
  font-size:13.5px;color:var(--sub);background:var(--paper);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.tag:hover{border-color:var(--mint);color:var(--ink);transform:translateY(-1px)}

/* ===== 主张条 ===== */
.claims{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);padding-top:0}
.claim{padding:40px 32px 8px;border-left:1px solid var(--line)}
.claim:first-child{border-left:0;padding-left:0}
.claim-num{font-family:var(--mono);font-size:32px;font-weight:500;color:var(--muted);letter-spacing:.02em;font-variant-numeric:tabular-nums}
.claim h3{margin-top:14px;font-size:18px;font-weight:600;color:var(--ink)}
.claim p{margin-top:10px;font-size:15px;color:var(--sub);max-width:320px}

/* ===== 故事 / 时间轴 ===== */
.story-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:center}
.story-media{border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/5;background:var(--mist);box-shadow:var(--sh-1)}
.story-media img{width:100%;height:100%;object-fit:cover}
.story-copy h2{font-size:38px;line-height:1.22;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.story-copy p{margin-top:20px;font-size:16.5px;line-height:1.85;color:var(--sub)}
.timeline{margin-top:36px;position:relative;padding-left:24px}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:var(--line)}
.tl-item{position:relative;padding:0 0 24px 0}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-24px;top:8px;width:11px;height:11px;border-radius:50%;
  background:var(--paper);border:2px solid var(--mint);
}
.tl-item h3{font-size:16.5px;font-weight:600;color:var(--ink)}
.tl-item p{font-size:14.5px;color:var(--sub);margin-top:4px}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:12.5px;font-weight:500;letter-spacing:.02em;
  background:rgba(46,230,168,.14);color:#0B5544;
}
.badge--coral{background:rgba(255,122,69,.14);color:#8C3A18}
.badge--info{background:rgba(62,127,140,.14);color:#28535C}
.badge--ink{background:rgba(15,58,52,.10);color:var(--ink)}

/* ===== 精选卡 ===== */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,230,168,.55)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--mist)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;top:14px;left:14px;z-index:2;background:rgba(255,255,255,.94);color:var(--ink)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card-title{font-size:20px;line-height:1.42;font-weight:600;color:var(--ink);transition:color .2s var(--ease)}
.card:hover .card-title{color:#0d6b55}
.card-text{font-size:15px;line-height:1.65;color:var(--sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.feature-main .card-media{aspect-ratio:auto;height:100%;min-height:280px}
.feature-main{display:grid;grid-template-columns:1fr 1fr}
.feature-main .card-body{padding:32px}
.feature-main .card-title{font-size:24px}
.feature-main .card-text{-webkit-line-clamp:3;font-size:15.5px}
.feature-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}

/* ===== 最新信息 ===== */
.news-anchor{
  display:grid;grid-template-columns:5fr 7fr;gap:0;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;margin-bottom:32px;
}
.news-anchor-media{position:relative;min-height:240px;background:var(--mist)}
.news-anchor-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.news-anchor-body{padding:32px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.news-anchor-body h3{font-size:24px;line-height:1.4;font-weight:600;color:var(--ink)}
.news-anchor-body p{font-size:15.5px;color:var(--sub)}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{
  background:var(--paper);border:1px solid var(--line);border-left:3px solid rgba(46,230,168,.85);
  border-radius:var(--r-md);padding:24px 26px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,230,168,.55);border-left-color:var(--mint)}
.news-link{display:flex;flex-direction:column;gap:10px;height:100%}
.news-title{font-size:17.5px;line-height:1.45;font-weight:600;color:var(--ink)}
.news-card:hover .news-title{color:#0d6b55}
.news-text{font-size:14.5px;line-height:1.65;color:var(--sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.empty-state{
  grid-column:1/-1;min-height:96px;border:1px dashed var(--line);border-radius:var(--r-md);
  background:var(--mist);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:32px;text-align:center;
}
.empty-state svg{width:28px;height:28px;color:var(--muted)}
.empty-state p{font-size:15px;color:var(--sub)}

/* ===== 数据 / 背书 ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);padding:28px 24px}
.stat-num{font-family:var(--mono);font-size:44px;line-height:1;font-weight:500;color:var(--ink);font-variant-numeric:tabular-nums}
.stat-num small{font-size:18px;margin-left:4px;color:var(--sub)}
.stat-label{margin-top:12px;font-size:13px;color:var(--sub);line-height:1.6}
.logo-strip{
  margin-top:40px;display:flex;flex-wrap:wrap;align-items:center;gap:40px;
  padding:24px 28px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper);
}
.logo-strip .ls-title{font-size:13px;color:var(--muted);letter-spacing:.06em}
.logo-item{
  font-size:16px;font-weight:600;color:var(--muted);filter:grayscale(1);opacity:.75;
  transition:color .22s var(--ease),filter .22s var(--ease),opacity .22s var(--ease);
}
.logo-item:hover{filter:grayscale(0);opacity:1;color:var(--ink)}
.quote{
  margin-top:24px;background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--mint);
  border-radius:var(--r-md);padding:28px 32px;
}
.quote p{font-size:16.5px;line-height:1.8;color:var(--text)}
.quote footer{margin-top:14px;font-size:13.5px;color:var(--muted)}

/* ===== FAQ ===== */
.faq{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;text-align:left;font-size:18px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:#0d6b55}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:transform .24s var(--ease),background-color .24s var(--ease);
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .faq-icon::after{transform:rotate(90deg) scaleY(0)}
.faq-item.open .faq-icon::before{background:#0d6b55}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{padding:0 4px 26px;font-size:16px;line-height:1.8;color:var(--sub)}

/* ===== CTA / 订阅 ===== */
.cta-block{position:relative;background:var(--night);color:var(--inverse);overflow:hidden}
.cta-block .bg{
  position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;opacity:.16;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:96px 0}
.cta-inner h2{font-size:38px;line-height:1.25;font-weight:700;letter-spacing:-.01em}
.cta-inner p{margin-top:16px;font-size:16px;color:rgba(255,255,255,.78);max-width:520px}
.subscribe-form{display:flex;gap:12px;align-items:flex-start}
.subscribe-form .field{flex:1 1 auto;position:relative}
.subscribe-form input{
  width:100%;height:48px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.07);padding:0 16px;color:var(--inverse);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.5)}
.subscribe-form input:focus{outline:none;border-color:var(--mint);box-shadow:0 0 0 3px rgba(46,230,168,.18);background:rgba(255,255,255,.1)}
.subscribe-hint{margin-top:12px;font-size:13px;color:rgba(255,255,255,.6)}
.form-msg{margin-top:10px;font-size:13px;display:none}
.form-msg.show{display:block}
.form-msg.ok{color:var(--mint)}
.form-msg.err{color:#FFB4A0}

/* ===== 页脚 ===== */
.site-footer{background:var(--night);color:rgba(255,255,255,.72);padding-top:72px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:56px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff;font-size:16.5px;font-weight:700}
.footer-brand .brand-sub{color:rgba(255,255,255,.45)}
.footer-note{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.footer-col a:hover{color:var(--mint);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:24px 0 32px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ===== 入场 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s var(--ease),transform .45s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .container{padding:0 28px}
  .hero h1{font-size:52px}
  .section-title{font-size:34px}
  .story-grid{gap:44px}
  .feature-grid{grid-template-columns:1fr}
  .feature-main .card-media{min-height:240px}
}
@media (max-width:1000px){
  .nav-links{display:none}
  .menu-toggle{display:grid}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-copy{max-width:none}
  .hero h1{font-size:44px}
  .hero-visual{max-width:620px}
  .float-card{left:auto;right:16px;bottom:-24px;width:250px}
  .story-grid{grid-template-columns:1fr;gap:36px}
  .story-media{max-width:460px;aspect-ratio:4/3}
  .claims{grid-template-columns:1fr}
  .claim{border-left:0;border-top:1px solid var(--line);padding:28px 0}
  .claim:first-child{border-top:0;padding-top:8px}
  .news-anchor{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero{padding:112px 0 56px}
  .hero h1{font-size:34px}
  .hero-sub{font-size:16px;margin-top:18px}
  .hero-cta{gap:12px;margin-top:28px}
  .hero-cta .btn{width:100%}
  .hero-meta{gap:8px;font-size:13px}
  .hero-media{aspect-ratio:16/11}
  .float-card{position:static;width:100%;margin-top:16px;animation:none;opacity:1}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .section-title{font-size:26px}
  .feature-main{grid-template-columns:1fr}
  .feature-main .card-body{padding:24px}
  .feature-main .card-title{font-size:20px}
  .news-grid{grid-template-columns:1fr}
  .news-card{padding:20px}
  .stats{grid-template-columns:1fr;gap:16px}
  .stat-num{font-size:36px}
  .logo-strip{gap:20px;padding:20px}
  .faq-q{font-size:16.5px;padding:20px 2px}
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .cta-inner h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;padding-bottom:40px}
  .footer-brand{grid-column:1/-1}
  .footer-note{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .search-panel{right:20px;left:20px;width:auto}
}
@media (max-width:520px){
  .hero h1{font-size:31px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  .hero-media img{transform:none;animation:none}
  .float-card{animation:none;opacity:1}
}

/* roulang page: article */
:root{
  --ink:#0F3A34;
  --night:#0A2420;
  --accent:#2EE6A8;
  --coral:#FF7A45;
  --bg:#F7F5F0;
  --paper:#FFFFFF;
  --mist:#EFF3F1;
  --line:#E5E1D8;
  --text:#131A19;
  --text-2:#5C6A67;
  --text-3:#8A9693;
  --inv:#F1F5F3;
  --ok:#2E9E6B;
  --warn:#D89A2B;
  --err:#D4503C;
  --info:#3E7F8C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --sh-1:0 1px 2px rgba(15,58,52,.04);
  --sh-2:0 10px 30px rgba(15,58,52,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
button,input{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text);}
p{margin:0 0 1.2em;}
ul,ol{margin:0;padding:0;list-style:none;}
.num{font-family:"Space Grotesk","Noto Sans SC",sans-serif;font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 40px;
}
/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:height .24s var(--ease),background .24s var(--ease);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:var(--nav-h);
  transition:height .24s var(--ease);
}
.site-header.is-condensed{--nav-h:60px;}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--ink) 0%,#14digits 100%);
  background:linear-gradient(135deg,#0F3A34 0%,#14695C 100%);
  display:grid;place-items:center;
  color:var(--accent);
  font-weight:800;
  font-size:16px;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.01em;}
.brand-sub{font-size:11.5px;color:var(--text-3);letter-spacing:.06em;text-transform:uppercase;}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  border-radius:var(--r-sm);
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--ink);background:var(--mist);}
.nav-link.active{color:var(--ink);font-weight:700;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:-1px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-wrap{
  display:flex;align-items:center;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  background:var(--mist);
  height:40px;
  padding:0 10px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-wrap:focus-within{
  background:var(--paper);
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(46,230,168,.12);
}
.search-wrap svg{flex-shrink:0;color:var(--text-3);}
.search-input{
  border:0;background:transparent;outline:none;
  width:0;padding:0;
  font-size:14.5px;
  transition:width .24s var(--ease),padding .24s var(--ease);
}
.search-wrap.is-open .search-input{width:180px;padding:0 8px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-sm);
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .18s var(--ease),box-shadow .22s var(--ease);
}
.btn:active{transform:scale(.985);}
.btn-primary{background:var(--ink);color:var(--inv);box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--accent);color:#0B1F1B;box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-ghost:hover{background:rgba(15,58,52,.06);}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;}
.btn-arrow svg{transition:transform .22s var(--ease);}
.btn-arrow:hover svg{transform:translateX(3px);}
.btn:disabled{opacity:.4;cursor:not-allowed;}
.hamburger{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-sm);
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:var(--paper);
}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
/* drawer */
.drawer{
  position:fixed;
  top:0;right:0;
  width:320px;max-width:86vw;height:100%;
  background:var(--paper);
  border-left:1px solid var(--line);
  box-shadow:-12px 0 40px rgba(15,58,52,.12);
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  z-index:120;
  padding:24px 22px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);
  display:grid;place-items:center;font-size:20px;color:var(--text-2);
}
.drawer-list{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-list a{
  padding:12px 12px;border-radius:var(--r-sm);font-size:15.5px;font-weight:500;color:var(--text-2);
}
.drawer-list a:hover,.drawer-list a.active{background:var(--mist);color:var(--ink);}
.drawer-search{display:flex;gap:8px;margin-bottom:20px;}
.drawer-search input{
  flex:1;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);padding:0 14px;outline:none;
}
.drawer-search input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(46,230,168,.12);}
.scrim{
  position:fixed;inset:0;background:rgba(10,36,32,.45);
  opacity:0;pointer-events:none;transition:opacity .26s var(--ease);z-index:110;
}
.scrim.is-open{opacity:1;pointer-events:auto;}
/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--paper);border-bottom:1px solid var(--line);}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-3);
  padding:14px 0;
  flex-wrap:wrap;
}
.crumb a:hover{color:var(--ink);}
.crumb .sep{color:#C9C4B8;}
.crumb .current{
  color:var(--ink);
  font-weight:600;
  max-width:420px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
/* ---------- article layout ---------- */
.page-main{padding:56px 0 104px;}
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:56px;
  align-items:start;
}
.article-shell{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:48px 56px 40px;
  box-shadow:var(--sh-1);
}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  background:rgba(15,58,52,.08);
  color:var(--ink);
}
.badge-coral{background:rgba(255,122,69,.14);color:#B34516;}
.badge-accent{background:rgba(46,230,168,.18);color:#0C5B44;}
.article-head{margin-bottom:28px;}
.article-head .badge{margin-bottom:16px;}
.article-title{
  font-size:40px;
  line-height:1.24;
  font-weight:800;
  letter-spacing:-.02em;
  max-width:760px;
}
.article-lead{
  margin-top:18px;
  font-size:17px;
  color:var(--text-2);
  line-height:1.8;
  max-width:760px;
}
.meta-row{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  margin-top:24px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
  font-size:13.5px;
  color:var(--text-3);
  letter-spacing:.02em;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#D3CEC2;}
.meta-row .meta-strong{color:var(--text-2);font-weight:500;}
.article-cover{
  margin:28px 0 8px;
  border-radius:var(--r-md);
  overflow:hidden;
  aspect-ratio:16/9;
  background:var(--mist);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}
.figcap{
  font-size:13px;
  color:var(--text-3);
  text-align:center;
  padding:10px 0 0;
}
/* ---------- article body typography ---------- */
.article-body{
  max-width:760px;
  font-size:17.5px;
  line-height:1.9;
  color:#1B2322;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  font-size:26px;
  line-height:1.4;
  font-weight:800;
  margin:48px 0 18px;
  padding-left:16px;
  letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.18em;
  width:3px;height:1.05em;
  border-radius:3px;
  background:var(--accent);
}
.article-body h3{
  font-size:20px;
  font-weight:700;
  margin:34px 0 12px;
}
.article-body h4{
  font-size:17.5px;
  font-weight:700;
  margin:26px 0 10px;
  color:var(--ink);
}
.article-body a{
  color:#0B6B52;
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--ink);text-decoration-color:var(--accent);}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:2px;}
.article-body ul li,.article-body ol li{
  position:relative;
  padding-left:24px;
  margin-bottom:10px;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;top:.72em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--accent);
}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;
  left:0;top:0;
  color:var(--ink);
  font-family:"Space Grotesk",sans-serif;
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:26px 0;
  padding:20px 24px;
  background:var(--mist);
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#26302E;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-md);
  margin:26px 0 8px;
  width:100%;
}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--text-3);
  text-align:center;
  margin-top:8px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:26px 0;
  font-size:15.5px;
  display:block;
  overflow-x:auto;
  white-space:nowrap;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:12px 16px;
  text-align:left;
}
.article-body th{background:var(--mist);font-weight:700;color:var(--ink);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
/* ---------- end of article ---------- */
.article-foot{
  max-width:760px;
  margin-top:44px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:20px;}
.tag-row .tag-label{font-size:13.5px;color:var(--text-3);}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:999px;border:1px solid var(--line);
  font-size:13px;color:var(--text-2);background:var(--paper);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.tag:hover{border-color:rgba(46,230,168,.6);color:var(--ink);}
.copy-btn{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-sm);
  border:1.5px solid var(--ink);color:var(--ink);
  font-size:14.5px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.copy-btn:hover{background:rgba(15,58,52,.06);}
.copy-btn.is-done{background:var(--accent);border-color:var(--accent);color:#0B1F1B;}
/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px;}
.side-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--sh-1);
}
.side-title{
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--ink);
  display:flex;align-items:center;gap:8px;
  margin-bottom:16px;
}
.side-title::before{content:"";width:3px;height:14px;border-radius:3px;background:var(--accent);}
.toc-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);}
.toc-list a{
  display:block;
  padding:7px 12px;
  font-size:14px;
  color:var(--text-2);
  border-left:2px solid transparent;
  margin-left:-1px;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.toc-list a:hover{color:var(--ink);background:var(--mist);}
.toc-list a.is-active{color:var(--ink);font-weight:600;border-left-color:var(--accent);background:rgba(46,230,168,.08);}
.toc-list a.depth-3{padding-left:24px;font-size:13.5px;}
.hot-list{display:flex;flex-direction:column;gap:14px;}
.hot-item{display:flex;gap:12px;align-items:flex-start;}
.hot-num{
  font-family:"Space Grotesk",sans-serif;
  font-size:15px;
  font-weight:700;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
  line-height:1.6;
  flex-shrink:0;
}
.hot-item:nth-child(1) .hot-num{color:var(--coral);}
.hot-item a{font-size:14.5px;color:var(--text-2);line-height:1.6;}
.hot-item a:hover{color:var(--ink);}
.side-note{
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
}
.toc-inline{display:none;}
/* ---------- related ---------- */
.section{padding:80px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:28px;flex-wrap:wrap;
}
.section-head h2{font-size:28px;font-weight:800;letter-spacing:-.01em;}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--text-2);}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--ink);
}
.link-more svg{transition:transform .22s var(--ease);}
.link-more:hover svg{transform:translateX(3px);}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,230,168,.5);}
.card-cover{aspect-ratio:16/9;overflow:hidden;background:var(--mist);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-cover img{transform:scale(1.04);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18.5px;line-height:1.5;font-weight:700;}
.card:hover .card-body h3{color:var(--ink);}
.card-body p{font-size:14.5px;color:var(--text-2);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:12px;
  font-size:13px;color:var(--text-3);
}
/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:#0B6B52;}
.faq-icon{
  position:relative;flex-shrink:0;
  width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);
  transition:transform .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.6px;}
.faq-icon::after{width:1.6px;height:10px;transition:opacity .2s var(--ease);}
.faq-item.is-open .faq-icon{background:var(--accent);border-color:var(--accent);transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .26s var(--ease);
}
.faq-a-inner{
  padding:0 4px 24px;
  font-size:15.5px;
  color:var(--text-2);
  line-height:1.8;
}
/* ---------- CTA ---------- */
.cta-band{
  margin-top:88px;
  background:var(--night);
  border-radius:var(--r-lg);
  padding:56px;
  color:var(--inv);
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:48px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;right:-80px;top:-80px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,168,.22) 0%,rgba(46,230,168,0) 70%);
}
.cta-band h2{color:#fff;font-size:32px;line-height:1.3;letter-spacing:-.01em;}
.cta-band p{color:rgba(241,245,243,.74);font-size:15.5px;margin:14px 0 0;max-width:520px;}
.cta-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cta-list span{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  font-size:13px;color:rgba(241,245,243,.8);
}
.cta-actions{display:flex;flex-direction:column;gap:14px;position:relative;z-index:1;}
.cta-actions .btn-primary{background:var(--accent);color:#0B1F1B;}
.cta-actions .btn-primary:hover{background:#5BF0BE;color:#0B1F1B;}
.cta-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.1);}
.cta-hint{font-size:13px;color:rgba(241,245,243,.6);margin:0;}
/* ---------- empty state ---------- */
.empty-state{
  min-height:96px;
  background:var(--mist);
  border-radius:var(--r-md);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:40px 24px;text-align:center;
}
.empty-state svg{color:var(--text-3);}
.empty-state p{margin:0;font-size:15px;color:var(--text-2);}
/* ---------- footer ---------- */
.site-footer{
  background:var(--night);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,#12systems 0%,#0F3A34 100%);}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2EE6A8 0%,#0F3A34 100%);color:#06231C;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.5);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;margin:0;}
.footer-quote{
  margin-top:18px;
  font-size:13.5px;
  color:rgba(241,245,243,.6);
  padding-left:12px;
  border-left:2px solid rgba(46,230,168,.6);
}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-block;
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.5);
  flex-wrap:wrap;
}
/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
/* ---------- responsive ---------- */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .sidebar{position:static;}
  .sidebar .side-card.toc-card{display:none;}
  .toc-inline{
    display:block;
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    padding:16px 20px;
    margin-bottom:24px;
  }
  .toc-inline summary{
    cursor:pointer;font-size:14px;font-weight:700;color:var(--ink);list-style:none;
  }
  .toc-inline summary::-webkit-details-marker{display:none;}
  .toc-inline summary::after{content:"＋";float:right;color:var(--text-3);}
  .toc-inline[open] summary::after{content:"－";}
  .toc-inline .toc-list{margin-top:12px;}
  .article-shell{padding:40px 40px 32px;}
}
@media (max-width:1024px){
  :root{--container:1120px;}
  .container{padding:0 28px;}
  .brand-sub{display:none;}
  .nav-links{gap:0;}
  .nav-link{padding:8px 9px;font-size:14.5px;}
  .search-wrap.is-open .search-input{width:130px;}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:44px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:899px){
  .nav-links{display:none;}
  .hamburger{display:flex;}
  .nav-actions .search-wrap{display:none;}
  .article-shell{padding:32px 24px 24px;border-radius:var(--r-md);}
  .article-title{font-size:30px;}
  .card-grid{grid-template-columns:1fr 1fr;gap:20px;}
  .section{padding-top:56px;}
  .cta-band{margin-top:64px;padding:36px 26px;border-radius:var(--r-md);}
  .cta-band h2{font-size:26px;}
}
@media (max-width:639px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .page-main{padding:28px 0 64px;}
  .article-title{font-size:26px;line-height:1.32;}
  .article-body{font-size:16.5px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:36px;}
  .article-body h3{font-size:18px;}
  .article-lead{font-size:16px;}
  .card-grid{grid-template-columns:1fr;}
  .crumb .current{max-width:180px;}
  .btn{width:100%;}
  .nav-actions .btn{width:auto;}
  .section-head h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .empty-state{padding:32px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#0F3A34;
  --core:#0A2420;
  --accent:#2EE6A8;
  --coral:#FF7A45;
  --bg:#F7F5F0;
  --paper:#FFFFFF;
  --mist:#EFF3F1;
  --line:#E5E1D8;
  --t1:#131A19;
  --t2:#5C6A67;
  --t3:#8A9693;
  --inv:#F1F5F3;
  --ok:#2E9E6B;
  --warn:#D89A2B;
  --err:#D4503C;
  --info:#3E7F8C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --sh-1:0 1px 2px rgba(15,58,52,.04);
  --sh-2:0 10px 30px rgba(15,58,52,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk","Inter","Segoe UI",system-ui,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(--t1);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:var(--r-xs);
}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-0.01em;color:var(--t1);}
p{margin:0 0 1.2em;}
ul,ol{margin:0;padding:0;list-style:none;}
input{font-family:inherit;}

.container{max-width:1240px;margin:0 auto;padding:0 40px;}
.narrow{max-width:760px;}

/* ---------- 页面通用小节 ---------- */
.section{padding:104px 0;}
.section--tight{padding:72px 0;}
.section--mist{background:var(--mist);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.section-head h2{font-size:38px;font-weight:800;letter-spacing:-0.02em;}
.section-head .eyebrow{
  display:inline-block;font-size:13.5px;letter-spacing:.08em;color:var(--t3);
  text-transform:uppercase;margin-bottom:12px;font-family:var(--font-num);
}
.section-head .sub{color:var(--t2);font-size:16px;max-width:560px;margin-top:12px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-sm);
  font-size:16px;font-weight:500;letter-spacing:.01em;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:var(--inv);border:1px solid var(--ink);}
.btn-primary:hover{background:var(--accent);color:var(--t1);border-color:var(--accent);}
.btn-primary:active{transform:scale(.985);}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-ghost:hover{background:rgba(15,58,52,.06);border-color:var(--ink);}
.btn-ghost:active{transform:scale(.985);}
.btn-lg{height:54px;padding:0 32px;font-size:17px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:500;color:var(--ink);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.btn-link .arrow{transition:transform .22s var(--ease);}
.btn-link:hover{border-bottom-color:var(--accent);}
.btn-link:hover .arrow{transform:translateX(3px);}
.on-dark .btn-primary{background:var(--accent);color:var(--t1);border-color:var(--accent);}
.on-dark .btn-primary:hover{background:#5ff2c0;}
.on-dark .btn-ghost{color:var(--inv);border-color:rgba(255,255,255,.55);}
.on-dark .btn-ghost:hover{background:rgba(255,255,255,.10);border-color:var(--inv);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:13px;font-weight:500;letter-spacing:.02em;
  background:rgba(15,58,52,.08);color:var(--ink);
}
.badge--accent{background:rgba(46,230,168,.16);color:#0B6B4F;}
.badge--coral{background:rgba(255,122,69,.14);color:#B84A1F;}
.badge--outline{background:transparent;border:1px solid var(--line);color:var(--t2);}
.tag-row{display:flex;flex-wrap:wrap;gap:12px;}
.tag{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper);color:var(--t2);font-size:14px;
  transition:border-color .22s var(--ease),color .22s var(--ease),background-color .22s var(--ease);
}
.tag:hover{border-color:var(--accent);color:var(--ink);background:#fff;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:var(--nav-h);
  background:rgba(10,36,32,.0);
  border-bottom:1px solid transparent;
  transition:height .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  height:60px;background:var(--paper);border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(15,58,52,.04);
}
.nav-inner{
  max-width:1240px;margin:0 auto;padding:0 40px;height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.nav-left{display:flex;align-items:center;gap:32px;min-width:0;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:var(--r-sm);
  background:linear-gradient(140deg,var(--accent),#12b987);
  display:flex;align-items:center;justify-content:center;
  color:var(--core);font-family:var(--font-num);font-weight:700;font-size:16px;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--inv);transition:color .24s var(--ease);}
.is-scrolled .brand-text{color:var(--ink);}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:rgba(241,245,243,.82);
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--inv);}
.nav-link.active{color:var(--ink);}
.nav-link.active::after{transform:scaleX(1);}
.is-scrolled .nav-link{color:var(--t2);}
.is-scrolled .nav-link:hover{color:var(--ink);}
.is-scrolled .nav-link.active{color:var(--ink);}
.nav-right{display:flex;align-items:center;gap:16px;}
.nav-divider{width:1px;height:24px;background:rgba(241,245,243,.24);}
.is-scrolled .nav-divider{background:var(--line);}
.search-toggle{
  width:40px;height:40px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  color:rgba(241,245,243,.85);border:1px solid rgba(241,245,243,.22);
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.search-toggle:hover{color:var(--inv);border-color:var(--accent);}
.is-scrolled .search-toggle{color:var(--t2);border-color:var(--line);}
.is-scrolled .search-toggle:hover{color:var(--ink);border-color:var(--accent);}
.nav-cta{height:40px;padding:0 20px;font-size:15px;border-radius:var(--r-sm);}
.search-panel{
  display:none;position:absolute;top:calc(100% + 8px);right:40px;width:320px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:16px;
}
.search-panel.is-open{display:block;}
.search-input{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--bg);font-size:15px;color:var(--t1);
}
.search-input::placeholder{color:var(--t3);}
.search-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(46,230,168,.14);}
.search-hint{font-size:13px;color:var(--t3);margin:10px 0 0;}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);align-items:center;justify-content:center;
  border:1px solid rgba(241,245,243,.24);color:var(--inv);
}
.is-scrolled .burger{border-color:var(--line);color:var(--ink);}
.burger span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;z-index:120;
  background:var(--core);color:var(--inv);padding:28px 24px;
  transform:translateX(100%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;gap:24px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.2);color:var(--inv);font-size:20px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  color:rgba(241,245,243,.82);font-size:16px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.10);
}
.drawer-nav a:hover{color:var(--accent);}
.drawer-nav a.active{color:var(--accent);font-weight:600;}
.drawer .btn{width:100%;}
.overlay{
  position:fixed;inset:0;background:rgba(10,36,32,.55);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.overlay.is-open{opacity:1;visibility:visible;}
body.no-scroll{overflow:hidden;}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;background:var(--core);color:var(--inv);overflow:hidden;
  padding:calc(var(--nav-h) + 72px) 0 84px;
}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.30;
}
.page-hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,36,32,.94) 0%,rgba(10,36,32,.78) 52%,rgba(10,36,32,.52) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  font-size:13.5px;letter-spacing:.02em;color:rgba(241,245,243,.62);
  margin-bottom:16px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;
}
.breadcrumb a{color:rgba(241,245,243,.62);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(241,245,243,.35);}
.breadcrumb .current{color:var(--accent);}
.page-hero h1{
  color:var(--inv);font-size:52px;font-weight:800;line-height:1.08;letter-spacing:-0.02em;
  max-width:820px;
}
.page-hero__lead{
  color:rgba(241,245,243,.82);font-size:17.5px;line-height:1.85;
  max-width:760px;margin-top:24px;
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:16px 24px;margin-top:32px;
  color:rgba(241,245,243,.72);font-size:14px;
}
.hero-meta li{display:flex;align-items:center;gap:10px;}
.hero-meta li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px;}

/* ---------- 宽卡 ---------- */
.wide-card{
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);margin-top:-56px;position:relative;z-index:5;
}
.wide-card__body{padding:48px;}
.wide-card__body h2{font-size:30px;font-weight:800;margin:14px 0 18px;}
.wide-card__body p{color:var(--t2);font-size:16.5px;}
.wide-card__media{position:relative;min-height:340px;background:var(--mist);}
.wide-card__media img{width:100%;height:100%;object-fit:cover;}
.wide-card__media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:12px 16px;font-size:13px;
  color:#fff;background:linear-gradient(transparent,rgba(10,36,32,.72));
}
.wide-card__points{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px;}

/* ---------- 两列编号卡 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.num-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:32px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.num-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,230,168,.5);}
.num-card__num{
  font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--t3);
  font-variant-numeric:tabular-nums;line-height:1;letter-spacing:.02em;
}
.num-card__num--coral{color:var(--coral);}
.num-card h3{font-size:22px;font-weight:700;margin:16px 0 12px;}
.num-card p{color:var(--t2);font-size:16px;margin-bottom:20px;}

/* ---------- 清单 ---------- */
.check-list{display:grid;gap:0;border-top:1px solid var(--line);}
.check-list li{
  display:grid;grid-template-columns:64px 1fr;gap:24px;align-items:start;
  padding:28px 0;border-bottom:1px solid var(--line);
}
.check-list .idx{
  font-family:var(--font-num);font-size:18px;font-weight:600;color:var(--t3);
  font-variant-numeric:tabular-nums;padding-top:2px;
}
.check-list h3{font-size:19px;font-weight:600;margin-bottom:8px;position:relative;padding-left:16px;}
.check-list h3::before{
  content:"";position:absolute;left:0;top:.42em;width:3px;height:16px;border-radius:2px;background:var(--accent);
}
.check-list p{color:var(--t2);font-size:16px;margin:0;}

/* ---------- 表单 ---------- */
.field{display:flex;flex-direction:column;gap:8px;}
.field input{
  height:48px;padding:0 16px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:var(--paper);font-size:15px;color:var(--t1);
}
.field input::placeholder{color:var(--t3);}
.field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(46,230,168,.12);}
.field .msg{font-size:13px;color:var(--t3);}
.field .msg.error{color:var(--err);}
.field .msg.ok{color:var(--ok);}
.subscribe-row{display:flex;gap:16px;align-items:flex-start;}
.subscribe-row .field{flex:1;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:rgba(46,230,168,.5);}
.faq-item[open]{box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  position:relative;width:20px;height:20px;flex-shrink:0;
  transition:transform .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease),background-color .24s var(--ease);
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-item[open] .faq-icon::before{background:var(--accent);}
.faq-body{
  padding:0 24px 22px;border-top:1px solid var(--line);margin-top:0;
  color:var(--t2);font-size:16px;line-height:1.8;padding-top:18px;
}
.faq-body p{margin:0;}

/* ---------- CTA 深色区块 ---------- */
.cta-block{
  position:relative;background:var(--core);color:var(--inv);
  border-radius:var(--r-lg);overflow:hidden;padding:64px;
}
.cta-block__bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-3.png);
  background-size:cover;background-position:center;opacity:.22;
}
.cta-block__veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,36,32,.94),rgba(10,36,32,.66));}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.cta-inner h2{color:var(--inv);font-size:34px;font-weight:800;letter-spacing:-0.02em;}
.cta-inner p{color:rgba(241,245,243,.78);margin-top:16px;font-size:16.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:8px;}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.related-card{
  display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,230,168,.5);}
.related-card h3{font-size:17px;font-weight:700;margin-bottom:10px;}
.related-card p{font-size:14px;color:var(--t2);margin:0 0 14px;line-height:1.7;}
.related-card .more{font-size:14px;font-weight:500;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.related-card:hover .more{color:#0B6B4F;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--core);color:var(--inv);padding:72px 0 0;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:48px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-text{color:var(--inv);}
.footer-desc{color:rgba(241,245,243,.72);font-size:14.5px;line-height:1.8;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:var(--inv);margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{
  color:rgba(255,255,255,.72);font-size:14px;display:inline-block;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-col p{color:rgba(255,255,255,.72);font-size:14px;margin:0 0 10px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 0 28px;font-size:13px;color:rgba(241,245,243,.55);
}

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

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .nav-inner{padding:0 32px;}
  .page-hero h1{font-size:46px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .burger{display:inline-flex;}
  .nav-cta{display:none;}
  .wide-card{grid-template-columns:1fr;}
  .wide-card__media{min-height:260px;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .cta-block{padding:48px 36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
}
@media (max-width:899px){
  .section{padding:76px 0;}
  .page-hero{padding:calc(var(--nav-h) + 56px) 0 72px;}
  .page-hero h1{font-size:38px;}
  .section-head h2{font-size:30px;}
  .card-grid{grid-template-columns:1fr;}
  .wide-card{margin-top:-32px;}
  .wide-card__body{padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .nav-inner{padding:0 20px;}
  .section{padding:56px 0;}
  .page-hero{padding:calc(var(--nav-h) + 40px) 0 56px;}
  .page-hero h1{font-size:34px;}
  .page-hero__lead{font-size:16.5px;}
  .section-head h2{font-size:26px;}
  .section-head{margin-bottom:28px;}
  .wide-card__body{padding:24px;}
  .wide-card__body h2{font-size:24px;}
  .num-card{padding:24px;}
  .num-card h3{font-size:19px;}
  .check-list li{grid-template-columns:1fr;gap:8px;padding:22px 0;}
  .related-grid{grid-template-columns:1fr;}
  .cta-block{padding:32px 20px;border-radius:var(--r-md);}
  .cta-inner h2{font-size:26px;}
  .cta-actions .btn{width:100%;}
  .subscribe-row{flex-direction:column;}
  .subscribe-row .btn{width:100%;}
  .faq-item summary{padding:18px 18px;font-size:16px;}
  .faq-body{padding:16px 18px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .search-panel{right:20px;left:20px;width:auto;}
}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .3s linear;}
  *{animation-duration:.001ms !important;transition-duration:.12s !important;}
}

/* roulang page: category3 */
:root{
  --ink:#0F3A34;
  --ink-deep:#0A2420;
  --accent:#2EE6A8;
  --coral:#FF7A45;
  --bg:#F7F5F0;
  --paper:#FFFFFF;
  --mint:#EFF3F1;
  --line:#E5E1D8;
  --text:#131A19;
  --text-2:#5C6A67;
  --text-3:#8A9693;
  --text-inv:#F1F5F3;
  --ok:#2E9E6B;
  --warn:#D89A2B;
  --err:#D4503C;
  --info:#3E7F8C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --sh-1:0 1px 2px rgba(15,58,52,.04);
  --sh-2:0 10px 30px rgba(15,58,52,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{max-width:1240px;margin:0 auto;padding:0 40px}

/* ---------- 通用组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--ink);
  text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px}
.section{padding:104px 0}
.section--mint{background:var(--mint)}
.section--tight{padding:64px 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:48px}
.section-head h2{font-size:38px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.section-head .sub{margin-top:12px;font-size:16px;color:var(--text-2);max-width:640px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:13px;font-weight:600;background:rgba(46,230,168,.16);color:var(--ink);
  border:1px solid rgba(15,58,52,.08);white-space:nowrap;
}
.badge--coral{background:rgba(255,122,69,.13);color:#B4441A;border-color:rgba(255,122,69,.22)}
.badge--mint{background:rgba(15,58,52,.07);color:var(--ink);border-color:rgba(15,58,52,.10)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-sm);
  font-size:15.5px;font-weight:600;border:1.5px solid transparent;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .18s var(--ease),box-shadow .22s var(--ease);
  white-space:nowrap;
}
.btn .arrow{display:inline-block;transition:transform .22s var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--ink);color:var(--text-inv)}
.btn-primary:hover{background:var(--accent);color:#0A2420}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(15,58,52,.06);border-color:var(--ink)}
.btn-accent{background:var(--accent);color:#0A2420}
.btn-accent:hover{background:#ffffff;color:#0A2420}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.10);border-color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
.btn-lg{height:54px;padding:0 32px;font-size:16.5px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1.5px solid rgba(46,230,168,.6);padding-bottom:2px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.text-link:hover{border-color:var(--ink)}
.text-link .arrow{transition:transform .22s var(--ease)}
.text-link:hover .arrow{transform:translateX(3px)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  height:var(--nav-h);display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:height .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.scrolled{
  height:60px;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(15,58,52,.05);
  backdrop-filter:saturate(180%) blur(10px);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
}
.header-inner{display:flex;align-items:center;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--ink);color:var(--accent);
  display:flex;align-items:center;justify-content:center;flex:0 0 34px;
}
.brand-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 13px;
  font-size:14.5px;color:var(--text-2);border-radius:8px;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(15,58,52,.05)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;
}
.nav-right{
  margin-left:auto;display:flex;align-items:center;gap:12px;
  padding-left:24px;border-left:1px solid var(--line);flex:0 0 auto;
}
.search-wrap{position:relative;display:flex;align-items:center}
.search-toggle{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:var(--text-2);transition:background-color .2s var(--ease),color .2s var(--ease);
}
.search-toggle:hover{background:rgba(15,58,52,.06);color:var(--ink)}
.search-field{
  width:0;opacity:0;padding:0;height:38px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--paper);transition:width .24s var(--ease),opacity .2s var(--ease),padding .24s var(--ease);
}
.search-wrap.open .search-field{width:180px;opacity:1;padding:0 14px;margin-left:8px}
.search-field:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(46,230,168,.14)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--paper);color:var(--ink);
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;border-radius:2px}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,36,32,.5);opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:130;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;background:var(--paper);
  z-index:140;transform:translateX(102%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:24px;overflow-y:auto;
  box-shadow:-10px 0 30px rgba(15,58,52,.12);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-2);
}
.drawer-close:hover{color:var(--ink);border-color:var(--ink)}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-links a{
  display:flex;align-items:center;height:46px;padding:0 14px;border-radius:10px;
  font-size:15.5px;color:var(--text-2);transition:background-color .2s var(--ease),color .2s var(--ease);
}
.drawer-links a:hover{background:var(--mint);color:var(--ink)}
.drawer-links a.active{background:var(--mint);color:var(--ink);font-weight:600}
.drawer .btn{width:100%}
.drawer-note{margin-top:16px;font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- Hero ---------- */
.hero{position:relative;padding:132px 0 88px;background:var(--bg);overflow:hidden}
.hero::after{
  content:"";position:absolute;right:-180px;top:-140px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,168,.18),rgba(46,230,168,0) 68%);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:16px}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink);font-weight:600}
.hero h1{
  font-size:clamp(34px,4.2vw,54px);line-height:1.1;letter-spacing:-.02em;
  font-weight:800;color:var(--ink);margin:16px 0 20px;
}
.hero .hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:0 20px;font-size:13.5px;color:var(--text-2)}
.hero-points li{display:flex;align-items:center;gap:20px}
.hero-points li+li{border-left:1px solid var(--line);padding-left:20px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  animation:heroZoom .6s var(--ease) both;
}
@keyframes heroZoom{from{transform:scale(1.06);opacity:.6}to{transform:scale(1);opacity:1}}
.hero-visual figcaption{margin-top:12px;font-size:13px;color:var(--text-3);text-align:center}
.float-card{
  position:absolute;left:-28px;bottom:38px;width:250px;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-md);padding:18px;
  box-shadow:var(--sh-2);animation:floatUp .5s var(--ease) .15s both;
}
@keyframes floatUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.fc-head{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:12px}
.fc-head .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(46,230,168,.18)}
.fc-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--text-2);padding:7px 0;border-top:1px solid var(--line);
}
.fc-row strong{color:var(--ink);font-weight:600}
.float-card .btn{width:100%;margin-top:12px}

/* ---------- 导语 ---------- */
.intro{padding:72px 0 0}
.intro-inner{
  max-width:900px;border-left:3px solid var(--accent);padding-left:28px;
}
.intro-inner p{font-size:16.5px;line-height:1.85;color:var(--text-2)}
.intro-inner strong{color:var(--ink);font-weight:600}

/* ---------- 步骤时间轴 ---------- */
.timeline{margin-top:8px}
.step{
  display:grid;grid-template-columns:88px minmax(0,1fr) 320px;
  gap:32px;padding:48px 0;border-top:1px solid var(--line);
}
.step:first-child{border-top:none;padding-top:0}
.step-rail{position:relative}
.step-rail::before{
  content:"";position:absolute;left:23px;top:60px;bottom:-48px;width:1px;background:var(--line);
}
.step:last-child .step-rail::before{display:none}
.step-num{
  position:relative;z-index:1;width:48px;height:48px;border-radius:14px;background:var(--ink);
  color:var(--accent);display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;
  font-family:"Space Grotesk",Inter,-apple-system,sans-serif;
}
.step-body{padding-top:2px}
.step-body h3{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:12px}
.step-body p{font-size:16px;line-height:1.8;color:var(--text-2);margin-bottom:14px}
.step-fig img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.step-fig figcaption{margin-top:10px;font-size:13px;color:var(--text-3);text-align:center}

/* ---------- 注意事项 ---------- */
.notes-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
.note-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.note-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,230,168,.5)}
.note-card--feature{display:grid;grid-template-columns:1fr 1fr}
.note-card--feature img{width:100%;height:100%;object-fit:cover;min-height:260px}
.note-card-body{padding:32px}
.note-card-body h3{font-size:22px;color:var(--ink);margin-bottom:14px}
.note-card-body p{font-size:15.5px;color:var(--text-2);margin-bottom:16px}
.notes-side{display:flex;flex-direction:column;gap:24px}
.note-mini{padding:26px;display:flex;gap:18px;align-items:flex-start;flex:1}
.note-mini .idx{
  font-family:"Space Grotesk",Inter,sans-serif;font-size:24px;font-weight:700;
  color:var(--text-3);font-variant-numeric:tabular-nums;line-height:1;
}
.note-mini h4{font-size:17px;color:var(--ink);margin-bottom:8px}
.note-mini p{font-size:14.5px;color:var(--text-2);margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:rgba(15,58,52,.22)}
.faq-item.open{border-color:rgba(46,230,168,.55);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-q .q-index{
  font-family:"Space Grotesk",Inter,sans-serif;font-size:14px;color:var(--text-3);
  font-variant-numeric:tabular-nums;font-weight:700;flex:0 0 auto;
}
.faq-icon{position:relative;width:24px;height:24px;flex:0 0 24px;margin-left:auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-icon::before{left:5px;top:11px;width:14px;height:2px}
.faq-icon::after{left:11px;top:5px;width:2px;height:14px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{
  padding:0 24px 22px 64px;font-size:15.5px;line-height:1.85;color:var(--text-2);
  border-top:1px solid var(--line);padding-top:18px;margin:0 24px 22px 0;
}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.related-card{
  display:flex;flex-direction:column;gap:10px;padding:26px;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,230,168,.5)}
.related-card .rc-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.related-card h3{font-size:17px;color:var(--ink)}
.related-card p{font-size:14.5px;color:var(--text-2);margin:0;flex:1}
.related-card .arrow{color:var(--ink);transition:transform .22s var(--ease)}
.related-card:hover .arrow{transform:translateX(3px)}

/* ---------- 深色 CTA ---------- */
.cta{
  position:relative;background-color:var(--ink-deep);
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;color:#fff;overflow:hidden;
}
.cta::before{content:"";position:absolute;inset:0;background:rgba(10,36,32,.82)}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr auto;gap:56px;align-items:center;padding:80px 0}
.cta h2{font-size:34px;font-weight:800;color:#fff;letter-spacing:-.02em;margin-bottom:16px}
.cta p{color:rgba(241,245,243,.78);max-width:600px;font-size:16px}
.cta-badge{margin-bottom:18px}
.cta-form{min-width:380px}
.form-row{display:flex;gap:12px}
.input{
  height:48px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.07);color:#fff;padding:0 16px;width:100%;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.input::placeholder{color:rgba(241,245,243,.5)}
.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(46,230,168,.16);background:rgba(255,255,255,.1)}
.form-note{margin-top:12px;font-size:13px;color:rgba(241,245,243,.6);line-height:1.7}
.form-msg{margin-top:10px;font-size:13px;min-height:18px}
.form-msg.ok{color:var(--accent)}
.form-msg.err{color:#FFB4A0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:rgba(46,230,168,.14);color:var(--accent)}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:800}
.footer-desc{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  display:inline-block;font-size:14px;color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-col p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;margin:0 0 10px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 28px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .step{grid-template-columns:80px minmax(0,1fr) 280px;gap:24px}
}
@media (max-width:1024px){
  .nav-links{display:none}
  .menu-toggle{display:flex}
  .nav-right{border-left:none;padding-left:0;gap:10px}
  .search-wrap{display:none}
  .hero{padding:120px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:2}
  .hero-visual img{aspect-ratio:16/10}
  .float-card{left:16px;bottom:16px;width:230px}
  .section{padding:76px 0}
  .section-head h2{font-size:30px}
  .step{grid-template-columns:64px minmax(0,1fr);gap:20px;padding:36px 0}
  .step-fig{grid-column:2;margin-top:8px}
  .step-rail::before{bottom:-36px;left:19px}
  .step-num{width:40px;height:40px;font-size:15px;border-radius:12px}
  .notes-grid{grid-template-columns:1fr}
  .note-card--feature{grid-template-columns:1fr}
  .note-card--feature img{min-height:220px;aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:64px 0}
  .cta-form{min-width:0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .hero{padding:104px 0 56px}
  .hero h1{font-size:clamp(30px,8.4vw,36px)}
  .hero .hero-sub{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-points{gap:8px 0;flex-direction:column}
  .hero-points li+li{border-left:none;padding-left:0;border-top:1px solid var(--line);padding-top:8px}
  .float-card{position:static;width:100%;margin-top:16px;animation:none}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .section-head h2{font-size:26px}
  .intro{padding:48px 0 0}
  .intro-inner{padding-left:20px}
  .step{grid-template-columns:1fr;gap:16px;padding:28px 0}
  .step-rail::before{display:none}
  .step-rail{display:flex;align-items:center;gap:12px}
  .step-fig{grid-column:1}
  .step-body h3{font-size:19px}
  .faq-q{padding:18px 18px;font-size:16px;gap:12px}
  .faq-a-inner{padding:16px 18px 18px;margin:0 18px 18px 0}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:36px}
  .form-row{flex-direction:column}
  .form-row .btn{width:100%}
  .cta h2{font-size:26px}
  .notes-side{gap:16px}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .reveal{transform:none}
  .hero-visual img{animation:none}
  .float-card{animation:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink:#0F3A34;
  --ink-deep:#0A2420;
  --accent:#2EE6A8;
  --coral:#FF7A45;
  --bg:#F7F5F0;
  --paper:#FFFFFF;
  --mint:#EFF3F1;
  --line:#E5E1D8;
  --text:#131A19;
  --text-2:#5C6A67;
  --text-3:#8A9693;
  --inv:#F1F5F3;
  --ok:#2E9E6B;
  --warn:#D89A2B;
  --err:#D4503C;
  --info:#3E7F8C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --sh-1:0 1px 2px rgba(15,58,52,.04);
  --sh-2:0 10px 30px rgba(15,58,52,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
  --nav-h-sm:60px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{line-height:1.25;font-weight:700;letter-spacing:-.01em}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--r-xs)}
::selection{background:rgba(46,230,168,.35)}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;font-family:"Inter","Space Grotesk",-apple-system,"Segoe UI",sans-serif}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-sm);
  font-size:15.5px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  border:1.5px solid transparent;cursor:pointer;text-decoration:none;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .18s var(--ease),box-shadow .2s var(--ease);
}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--ink);color:var(--inv)}
.btn-primary:hover{background:var(--accent);color:#08221E}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:rgba(15,58,52,.06);border-color:var(--ink)}
.btn-sm{height:40px;padding:0 20px;font-size:14.5px}
.btn-block{width:100%}
.btn-arrow::after{content:"→";display:inline-block;transition:transform .2s var(--ease)}
.btn-arrow:hover::after{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed}
.btn.is-loading::before{
  content:"";width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.4);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--ink);
  border-bottom:1.5px solid rgba(46,230,168,.7);
  padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.link-arrow::after{content:"→";transition:transform .2s var(--ease)}
.link-arrow:hover{color:#0B5C46;border-color:var(--accent)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:rgba(46,230,168,.14);color:#0B5C46;
}
.badge-coral{background:rgba(255,122,69,.14);color:#B4431C}
.badge-mint{background:rgba(15,58,52,.07);color:var(--ink)}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;height:var(--nav-h);
  background:transparent;
  transition:height .22s var(--ease),background-color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  height:var(--nav-h-sm);
  background:rgba(247,245,240,.95);
  border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(15,58,52,.04);
  backdrop-filter:saturate(180%) blur(10px);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:100%}
.header-left{display:flex;align-items:center;gap:36px;min-width:0}
.header-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.header-sep{width:1px;height:26px;background:var(--line);margin-right:8px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;width:34px;height:34px;flex:0 0 34px}
.brand-mark svg{width:100%;height:100%;display:block}
.brand-text{
  font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--r-xs);font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(15,58,52,.05)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--accent);
}
.search-wrap{position:relative;display:flex;align-items:center}
.search-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-xs);color:var(--text-2);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.search-toggle:hover{color:var(--ink);background:rgba(15,58,52,.05)}
.search-toggle svg{width:19px;height:19px}
.search-box{
  display:none;align-items:center;gap:8px;
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:264px;height:44px;padding:0 6px 0 14px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-sm);
  box-shadow:var(--sh-1);z-index:5;
}
.search-wrap.open .search-box{display:flex}
.search-wrap.open .search-toggle{visibility:hidden}
.search-box input{
  flex:1 1 auto;min-width:0;height:38px;border:0;background:transparent;
  font-size:14.5px;outline:none;
}
.search-box input::placeholder{color:var(--text-3)}
.search-box button{
  height:32px;padding:0 14px;border-radius:8px;background:var(--ink);color:var(--inv);
  font-size:13.5px;font-weight:600;flex:0 0 auto;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.search-box button:hover{background:var(--accent);color:#08221E}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-xs);
  align-items:center;justify-content:center;color:var(--ink);
}
.nav-toggle:hover{background:rgba(15,58,52,.06)}
.nav-toggle span{display:block;position:relative;width:20px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:currentColor;border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:200;visibility:hidden;pointer-events:none}
.drawer.open{visibility:visible;pointer-events:auto}
.drawer-mask{
  position:absolute;inset:0;background:rgba(10,36,32,.5);
  opacity:0;transition:opacity .24s var(--ease);
}
.drawer.open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;width:320px;max-width:86vw;height:100%;
  background:var(--paper);padding:20px 22px 32px;overflow-y:auto;
  transform:translateX(100%);transition:transform .26s var(--ease);
  box-shadow:-10px 0 30px rgba(15,58,52,.14);
}
.drawer.open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-xs);display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);font-size:22px;line-height:1;
}
.drawer-close:hover{background:var(--mint);color:var(--ink)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:18px 0}
.drawer-nav a{
  display:flex;align-items:center;height:46px;padding:0 14px;border-radius:var(--r-sm);
  font-size:15.5px;font-weight:500;color:var(--text-2);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.drawer-nav a:hover{background:var(--mint);color:var(--ink)}
.drawer-nav a.active{background:rgba(46,230,168,.12);color:var(--ink);font-weight:600}
.drawer-foot{margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}
.drawer-note{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.7}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:132px 0 76px;
  background:
    radial-gradient(900px 420px at 82% 8%,rgba(46,230,168,.16),transparent 62%),
    linear-gradient(180deg,#EFF3F1 0%,#F7F5F0 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:16px}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:#C9C4B8}
.breadcrumb .current{color:var(--ink);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-title{
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.14;letter-spacing:-.02em;font-weight:800;color:var(--ink);
  max-width:16em;
}
.hero-title em{font-style:normal;color:#0B5C46;box-shadow:inset 0 -.34em 0 rgba(46,230,168,.35)}
.hero-lead{margin-top:20px;font-size:16.5px;line-height:1.85;color:var(--text-2);max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px;padding-top:20px;border-top:1px solid var(--line)}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-2);letter-spacing:.02em}
.hero-points li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);flex:0 0 5px}
.hero-media{
  position:relative;border-radius:20px;overflow:hidden;aspect-ratio:4/3;
  box-shadow:0 10px 30px rgba(15,58,52,.10);background:var(--mint);
}
.hero-media img{width:100%;height:100%;object-fit:cover;animation:heroImg .6s var(--ease) both}
@keyframes heroImg{from{transform:scale(1.06)}to{transform:scale(1)}}
.float-card{
  position:absolute;left:20px;right:20px;bottom:20px;
  background:rgba(255,255,255,.97);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:0 10px 30px rgba(15,58,52,.14);
  animation:floatIn .5s var(--ease) .15s both;
}
@keyframes floatIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.float-title{font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:10px}
.float-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--text-3);padding:5px 0;border-top:1px solid var(--line)}
.float-row strong{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums}
.float-card .link-arrow{margin-top:10px;font-size:14px}

/* ---------- 通用板块 ---------- */
.section{padding:104px 0}
.section-tight{padding:72px 0}
.section-mint{background:var(--mint)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-title{font-size:clamp(24px,2.6vw,38px);font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.2}
.section-sub{margin-top:12px;font-size:16px;color:var(--text-2);max-width:42em}
.section-head .link-arrow{flex:0 0 auto;margin-bottom:6px}

/* ---------- 要点速览 ---------- */
.highlights{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.highlight{padding-left:24px;border-left:1px solid var(--line)}
.highlight:first-child{border-left:0;padding-left:0}
.highlight .num{display:block;font-size:32px;line-height:1;color:var(--text-3);margin-bottom:14px}
.highlight h3{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:8px}
.highlight p{font-size:15px;color:var(--text-2);line-height:1.75}

/* ---------- Zigzag ---------- */
.zig-list{display:flex;flex-direction:column}
.zig-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:56px 0;border-top:1px solid var(--line);
}
.zig-row:first-child{border-top:0;padding-top:8px}
.zig-row:last-child{padding-bottom:8px}
.zig-row.reverse .zig-media{order:2}
.zig-row.reverse .zig-body{order:1}
.zig-media{
  position:relative;border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;
  background:var(--mint);border:1px solid var(--line);
}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.zig-row:hover .zig-media img{transform:scale(1.04)}
.zig-media .media-tag{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  background:rgba(255,255,255,.94);color:var(--ink);font-size:12.5px;font-weight:600;
  border:1px solid rgba(15,58,52,.08);
}
.zig-body .num{display:block;font-size:32px;line-height:1;color:var(--text-3);margin-bottom:14px}
.zig-body h3{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:14px}
.zig-body p{font-size:16px;color:var(--text-2);line-height:1.8;margin-bottom:12px}
.zig-body p:last-of-type{margin-bottom:20px}
.zig-body .badge{margin-bottom:14px}

/* ---------- 验证方式卡片 ---------- */
.verify-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.verify-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.verify-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,230,168,.55)}
.verify-card h3{font-size:19px;font-weight:700;color:var(--ink);margin:14px 0 10px}
.verify-card > p{font-size:15.5px;color:var(--text-2);line-height:1.8;margin-bottom:16px}
.dot-list li{position:relative;padding-left:18px;font-size:15px;color:var(--text-2);line-height:1.8}
.dot-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---------- 提示条 ---------- */
.note-bar{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--r-sm);padding:20px 24px;margin-top:32px;
}
.note-bar strong{display:block;font-size:15.5px;color:var(--ink);margin-bottom:4px}
.note-bar p{font-size:15px;color:var(--text-2);line-height:1.75}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto}
.faq-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item.open{border-color:rgba(46,230,168,.6);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  min-height:44px;
}
.faq-q:hover{color:#0B5C46}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:transform .24s var(--ease),background-color .24s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-icon::after{transform:scaleY(0)}
.faq-item.open .faq-icon::before{background:#0B5C46}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{
  padding:16px 24px 22px;border-top:1px solid var(--line);
  font-size:15.5px;color:var(--text-2);line-height:1.85;
}

/* ---------- CTA ---------- */
.cta{
  background:var(--ink-deep);color:var(--inv);border-radius:var(--r-lg);
  padding:56px;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(46,230,168,.22),transparent 68%);
  pointer-events:none;
}
.cta h2{font-size:clamp(23px,2.4vw,32px);font-weight:800;line-height:1.24;letter-spacing:-.02em}
.cta p{margin-top:16px;font-size:16px;color:rgba(241,245,243,.76);line-height:1.8;max-width:34em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cta .btn-accent{background:var(--accent);color:#08221E}
.cta .btn-accent:hover{background:#fff;color:var(--ink)}
.cta .btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.cta .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.cta-side{border-left:1px solid rgba(255,255,255,.14);padding-left:40px}
.cta-side dl{margin:0}
.cta-side dt{font-size:13px;letter-spacing:.06em;color:rgba(46,230,168,.9);margin-bottom:6px}
.cta-side dd{margin:0 0 20px;font-size:16px;font-weight:600;color:#fff}
.cta-side dd:last-child{margin-bottom:0}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,230,168,.55)}
.related-media{aspect-ratio:16/9;overflow:hidden;background:var(--mint)}
.related-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.related-card:hover .related-media img{transform:scale(1.04)}
.related-body{padding:20px 22px 24px}
.related-body h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:8px;position:relative;display:inline-block}
.related-body h3::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);
  transition:width .24s var(--ease);
}
.related-card:hover .related-body h3::after{width:100%}
.related-body p{font-size:14.5px;color:var(--text-2);line-height:1.72}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.brand-footer .brand-text{color:#fff}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:26em}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-block;
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-plain li{font-size:14px;color:rgba(255,255,255,.6);line-height:1.75;margin-bottom:10px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.55);letter-spacing:.02em;
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .24s var(--ease),transform .24s var(--ease)}
.reveal.in-view{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container{max-width:1120px}
  .hero-grid{gap:44px}
  .zig-row{gap:44px}
}
@media (max-width:1199px){
  .hero-title{font-size:36px}
  .cta{padding:48px;grid-template-columns:1fr}
  .cta-side{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.14);padding-top:28px}
}
@media (max-width:1024px){
  .container{padding:0 28px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-sep{display:none}
  .page-hero{padding:112px 0 64px}
  .section{padding:76px 0}
  .section-tight{padding:56px 0}
  .header-right .btn-primary{display:none}
  .search-box{width:230px}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{aspect-ratio:16/10}
  .hero-title{max-width:none}
  .zig-row{grid-template-columns:1fr;gap:28px;padding:44px 0}
  .zig-row.reverse .zig-media{order:0}
  .zig-row.reverse .zig-body{order:0}
  .highlights{grid-template-columns:1fr;gap:24px}
  .highlight{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:22px}
  .highlight:first-child{border-top:0;padding-top:0}
  .verify-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 20px}
  .site-header{height:60px}
  .brand-text{font-size:15.5px}
  .page-hero{padding:96px 0 52px}
  .hero-title{font-size:29px}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .zig-body h3{font-size:19px}
  .zig-body p{font-size:15.5px}
  .related-grid{grid-template-columns:1fr}
  .cta{padding:32px 24px;border-radius:var(--r-md)}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a-inner{padding:14px 18px 20px;font-size:15px}
  .search-box{width:min(72vw,240px)}
  .float-card{left:14px;right:14px;bottom:14px;padding:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{transform:none}
  .hero-media img{animation:none}
  .float-card{animation:none}
  .zig-row:hover .zig-media img,.related-card:hover .related-media img{transform:none}
}

/* roulang page: category4 */
:root{
  --ink:#0F3A34;
  --ink-deep:#0A2420;
  --accent:#2EE6A8;
  --coral:#FF7A45;
  --bg:#F7F5F0;
  --paper:#FFFFFF;
  --mint:#EFF3F1;
  --line:#E5E1D8;
  --t1:#131A19;
  --t2:#5C6A67;
  --t3:#8A9693;
  --inv:#F1F5F3;
  --ok:#2E9E6B;
  --warn:#D89A2B;
  --err:#D4503C;
  --info:#3E7F8C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --sh-1:0 1px 2px rgba(15,58,52,.04);
  --sh-2:0 10px 30px rgba(15,58,52,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(46,230,168,.28)}

.container{max-width:1240px;margin:0 auto;padding:0 40px}
.section{padding:104px 0}
.section-tight{padding:72px 0}
.bg-mint{background:var(--mint)}
.bg-paper{background:var(--paper)}

/* ------- 导航 ------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  height:var(--nav-h);
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:height .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
  backdrop-filter:saturate(140%) blur(6px);
}
.nav-inner{
  width:100%;max-width:1240px;margin:0 auto;padding:0 40px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.nav-left{display:flex;align-items:center;gap:36px;min-width:0}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--accent),#1aa87a);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:inset 0 0 0 1px rgba(10,36,32,.18);
}
.logo-mark span{
  width:12px;height:12px;border-radius:4px;background:var(--ink-deep);
  box-shadow:8px 0 0 -3px var(--ink-deep);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--inv);white-space:nowrap;transition:color .22s var(--ease)}
.logo-short{display:none}
.site-header.is-scrolled .logo-text{color:var(--ink)}

.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;
  font-size:14.5px;font-weight:500;
  color:rgba(255,255,255,.82);
  padding:6px 2px;
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:#fff}
.nav-link.active::after{transform:scaleX(1)}
.site-header.is-scrolled .nav-link{color:var(--t2)}
.site-header.is-scrolled .nav-link:hover{color:var(--ink)}
.site-header.is-scrolled .nav-link.active{color:var(--ink)}

.nav-right{display:flex;align-items:center;gap:12px;flex:none}
.search-toggle{
  width:40px;height:40px;border-radius:var(--r-sm);
  background:transparent;border:1px solid rgba(255,255,255,.24);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
  color:rgba(255,255,255,.86);
}
.search-toggle:hover{border-color:var(--accent);color:var(--accent)}
.site-header.is-scrolled .search-toggle{border-color:var(--line);color:var(--t2)}
.site-header.is-scrolled .search-toggle:hover{border-color:var(--ink);color:var(--ink)}
.search-inline{
  width:0;opacity:0;overflow:hidden;
  transition:width .24s var(--ease),opacity .2s var(--ease);
}
.nav-right.search-open .search-inline{width:210px;opacity:1}
.search-inline input{
  width:100%;height:40px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);
  color:#fff;padding:0 14px;font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.search-inline input::placeholder{color:rgba(255,255,255,.55)}
.search-inline input:focus{
  outline:none;border-color:var(--accent);background:rgba(255,255,255,.14);
  box-shadow:0 0 0 3px rgba(46,230,168,.14);
}
.site-header.is-scrolled .search-inline input{border-color:var(--line);background:#fff;color:var(--t1)}
.site-header.is-scrolled .search-inline input::placeholder{color:var(--t3)}

.menu-toggle{
  display:none;
  width:42px;height:42px;border-radius:var(--r-sm);
  background:transparent;border:1px solid rgba(255,255,255,.24);
  cursor:pointer;align-items:center;justify-content:center;
  color:rgba(255,255,255,.9);
}
.site-header.is-scrolled .menu-toggle{border-color:var(--line);color:var(--ink)}
.menu-lines{display:block;width:18px;height:2px;background:currentColor;position:relative;border-radius:2px}
.menu-lines::before,.menu-lines::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.menu-lines::before{top:-6px}
.menu-lines::after{top:6px}

/* ------- 抽屉 ------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,36,32,.52);
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s var(--ease);z-index:130;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;
  background:var(--paper);z-index:140;
  transform:translateX(100%);
  transition:transform .26s var(--ease);
  display:flex;flex-direction:column;
  padding:24px 24px 32px;
  overflow-y:auto;
  box-shadow:-12px 0 40px rgba(10,36,32,.16);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:24px}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink)}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;color:var(--t2);
}
.drawer-close:hover{border-color:var(--ink);color:var(--ink)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{
  padding:12px 12px;border-radius:var(--r-sm);font-size:15.5px;font-weight:500;color:var(--t2);
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.drawer-nav a:hover{background:var(--mint);color:var(--ink)}
.drawer-nav a.active{background:rgba(46,230,168,.14);color:var(--ink);font-weight:600}
.drawer-search{display:flex;gap:8px;margin-bottom:20px}
.drawer-search input{
  flex:1;height:46px;border-radius:var(--r-sm);border:1px solid var(--line);
  padding:0 14px;font-size:14.5px;background:#fff;color:var(--t1);
}
.drawer-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(46,230,168,.16)}
.drawer-search button{
  height:46px;padding:0 18px;border-radius:var(--r-sm);border:none;
  background:var(--ink);color:var(--inv);font-weight:600;cursor:pointer;
}
.drawer-search button:hover{background:var(--accent);color:var(--ink-deep)}

/* ------- 按钮 ------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-sm);
  font-size:15.5px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .18s var(--ease),box-shadow .2s var(--ease);
}
.btn:active{transform:scale(.985)}
.btn .arrow{transition:transform .2s var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}
.btn-primary{background:var(--ink);color:var(--inv)}
.btn-primary:hover{background:var(--accent);color:var(--ink-deep)}
.btn-accent{background:var(--accent);color:var(--ink-deep)}
.btn-accent:hover{background:#25c893;color:var(--ink-deep)}
.btn-outline{background:transparent;border:1.5px solid var(--ink);color:var(--ink)}
.btn-outline:hover{background:rgba(15,58,52,.06);border-color:var(--ink)}
.btn-ghost-light{background:transparent;border:1.5px solid rgba(255,255,255,.42);color:var(--inv)}
.btn-ghost-light:hover{border-color:var(--accent);color:var(--accent)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--accent);color:var(--ink-deep)}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px}
.btn-xs{height:36px;padding:0 16px;font-size:13.5px;border-radius:8px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--ink);
  border-bottom:1px solid rgba(15,58,52,.24);padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.text-link:hover{color:#0a5f4d;border-color:var(--accent)}
.text-link .arrow{transition:transform .2s var(--ease)}
.text-link:hover .arrow{transform:translateX(3px)}

/* ------- 徽章 / 标签 ------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  background:rgba(46,230,168,.16);color:#0d5c46;
  white-space:nowrap;
}
.badge-coral{background:rgba(255,122,69,.16);color:#a8421d}
.badge-mint{background:var(--mint);color:var(--ink)}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--t2)}

/* ------- Hero ------- */
.hero{
  position:relative;
  background:var(--ink-deep);
  color:var(--inv);
  padding:calc(var(--nav-h) + 96px) 0 96px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.5;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(10,36,32,.94) 0%,rgba(10,36,32,.80) 45%,rgba(15,58,52,.72) 100%);
}
.hero-inner{position:relative;z-index:2}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;letter-spacing:.02em;color:rgba(255,255,255,.62);
  margin-bottom:16px;
}
.breadcrumb a{color:rgba(255,255,255,.7);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{color:rgba(255,255,255,.36)}
.crumb-current{color:#fff}
.hero-grid{
  display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;
  padding-top:8px;
}
.hero-grid::before{display:none}
.hero-copy .badge{margin-bottom:20px}
.hero h1{
  font-size:60px;line-height:1.08;letter-spacing:-.02em;font-weight:800;
  color:#fff;margin-bottom:24px;max-width:620px;
}
.hero-lead{
  font-size:17px;line-height:1.8;color:rgba(241,245,243,.82);max-width:560px;
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-points{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;
  font-size:14px;color:rgba(241,245,243,.72);
}
.hero-points li{position:relative;padding:0 18px}
.hero-points li:first-child{padding-left:0}
.hero-points li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:12px;background:rgba(255,255,255,.24);
}
.hero-points li:first-child::before{display:none}

.hero-visual{position:relative}
.hero-media{
  border-radius:20px;overflow:hidden;
  aspect-ratio:4/3;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 24px 60px rgba(0,0,0,.32);
}
.hero-media img{width:100%;height:100%;object-fit:cover;transform:scale(1.06);animation:heroZoom .6s var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.float-card{
  position:absolute;left:-28px;bottom:-32px;
  width:270px;background:var(--paper);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-2);
  opacity:0;animation:floatIn .5s var(--ease) .15s forwards;
}
@keyframes floatIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.float-head{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--ink);margin-bottom:14px;
}
.float-head .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none}
.float-list{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}
.float-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--t2)}
.float-list b{font-size:12.5px;font-weight:600;padding:2px 8px;border-radius:999px}
.float-list b.ok{color:#1f7a4f;background:rgba(46,158,107,.14)}
.float-list b.warn{color:#8f6512;background:rgba(216,154,43,.16)}

/* ------- 通用区块头 ------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:38px;line-height:1.2;letter-spacing:-.02em;font-weight:700;color:var(--t1);
  max-width:640px;
}
.section-head p{font-size:16px;color:var(--t2);max-width:520px;margin-top:12px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:600;letter-spacing:.06em;color:var(--ink);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--accent);border-radius:2px}

/* ------- 对照表 ------- */
.table-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
}
.compare-table{
  width:100%;min-width:720px;border-collapse:collapse;background:var(--paper);
}
.compare-table caption{
  text-align:left;font-size:13.5px;color:var(--t3);padding:0 0 12px;
}
.compare-table thead th{
  background:var(--mint);color:var(--ink);
  font-size:14px;font-weight:700;letter-spacing:.02em;
  text-align:left;padding:16px 20px;border-bottom:1px solid var(--line);
}
.compare-table tbody td{
  padding:20px;border-bottom:1px solid var(--line);
  font-size:15.5px;line-height:1.7;color:var(--t2);vertical-align:top;
}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table tbody tr:hover{background:rgba(239,243,241,.6)}
.compare-table td:first-child{color:var(--t1);font-weight:600;width:26%}
.compare-table td:nth-child(2){width:30%}
.table-hint{font-size:13px;color:var(--t3);margin-top:12px}
@media (max-width:879px){ .table-hint{display:block} }
@media (min-width:880px){ .table-hint{display:none} }

/* ------- 图文卡 ------- */
.card-grid-2{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
}
.info-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,230,168,.5)}
.info-card .cover{
  aspect-ratio:16/9;overflow:hidden;background:var(--mint);
}
.info-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.info-card:hover .cover img{transform:scale(1.04)}
.info-card .body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:14px;flex:1}
.info-card h3{font-size:22px;line-height:1.4;font-weight:700;color:var(--t1)}
.info-card p{font-size:15.5px;line-height:1.8;color:var(--t2);margin:0}
.info-card .card-foot{margin-top:auto;padding-top:6px}

/* ------- 提示条 ------- */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  border-left:3px solid var(--accent);
  background:var(--mint);
  border-radius:var(--r-sm);
  padding:22px 26px;
}
.notice-icon{
  flex:none;width:34px;height:34px;border-radius:10px;
  background:rgba(255,122,69,.16);color:#a8421d;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;
}
.notice strong{display:block;font-size:15.5px;color:var(--ink);margin-bottom:6px}
.notice p{font-size:15px;line-height:1.8;color:var(--t2);margin:0}

/* ------- FAQ ------- */
.faq-list{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:8px 28px;box-shadow:var(--sh-1);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;background:none;border:none;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--t1);line-height:1.5;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--ink)}
.faq-icon{
  position:relative;flex:none;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.is-open .faq-icon{border-color:var(--accent);background:rgba(46,230,168,.16)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{
  border-top:1px solid var(--line);
  padding:18px 4px 24px;
  font-size:15.5px;line-height:1.85;color:var(--t2);
}

/* ------- CTA ------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-deep);border-radius:var(--r-lg);
  padding:64px;color:var(--inv);
}
.cta-band .cta-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.34}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,36,32,.92),rgba(15,58,52,.72));
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.cta-inner h2{font-size:36px;line-height:1.24;letter-spacing:-.02em;font-weight:700;color:#fff;margin-bottom:16px}
.cta-inner p{font-size:16px;line-height:1.8;color:rgba(241,245,243,.78);max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:14px}
.cta-note{font-size:13px;color:rgba(241,245,243,.6);margin-top:4px}

/* ------- 相关分类 ------- */
.related-list{
  border-top:1px solid var(--line);
}
.related-item{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 4px;border-bottom:1px solid var(--line);
  transition:padding-left .22s var(--ease),background-color .22s var(--ease);
}
.related-item:hover{background:rgba(239,243,241,.7);padding-left:12px}
.related-main{display:flex;align-items:center;gap:20px;min-width:0}
.related-num{
  font-size:16px;font-weight:700;color:var(--t3);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;flex:none;width:28px;
}
.related-title{font-size:18px;font-weight:700;color:var(--t1);margin-bottom:4px}
.related-desc{font-size:14.5px;color:var(--t2);line-height:1.65}
.related-arrow{flex:none;color:var(--ink);transition:transform .2s var(--ease)}
.related-item:hover .related-arrow{transform:translateX(4px)}

/* ------- 页脚 ------- */
.site-footer{
  background:var(--ink-deep);color:var(--inv);
  padding:72px 0 32px;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);
}
.logo-footer .logo-text{font-size:16.5px}
.footer-desc{
  font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.72);
  margin:18px 0 14px;max-width:340px;
}
.footer-quote{
  font-size:13.5px;color:var(--accent);line-height:1.7;
  padding-left:12px;border-left:2px solid rgba(46,230,168,.5);
}
.footer-col h3{
  font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.01em;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.72);
  display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-col li span{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;display:block}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:24px;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.55);margin:0}

/* ------- 入场 ------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .24s var(--ease),transform .24s var(--ease)}
.reveal.is-visible{opacity:1;transform:translateY(0)}

/* ------- 响应式 ------- */
@media (max-width:1199px){
  .container{padding:0 32px}
  .nav-inner{padding:0 32px}
  .hero h1{font-size:52px}
  .hero-grid{gap:44px}
  .section-head h2{font-size:34px}
}

@media (max-width:1024px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .nav-cta{display:none}
  .container{padding:0 28px}
  .nav-inner{padding:0 28px}
  .hero{padding:calc(var(--nav-h) + 80px) 0 80px}
  .hero-grid{grid-template-columns:1fr;gap:56px}
  .hero h1{font-size:44px;max-width:none}
  .hero-media{aspect-ratio:16/9;max-height:420px}
  .float-card{position:static;width:100%;margin-top:20px;opacity:1;animation:none;box-shadow:var(--sh-1)}
  .section{padding:76px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px}
  .cta-band{padding:48px 36px}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}

@media (max-width:879px){
  .card-grid-2{grid-template-columns:1fr}
  .hero h1{font-size:38px}
  .section-head h2{font-size:28px}
}

@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 20px}
  .nav-inner{padding:0 20px}
  .logo-full{display:none}
  .logo-short{display:inline}
  .logo-text{font-size:16px}
  .hero{padding:calc(64px + 80px) 0 64px}
  .hero h1{font-size:34px;line-height:1.14;letter-spacing:-.01em}
  .hero-lead{font-size:16px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .hero-points{flex-direction:column;align-items:flex-start;gap:8px}
  .hero-points li{padding:0}
  .hero-points li::before{display:none}
  .hero-media{aspect-ratio:4/3;min-height:240px}
  .section{padding:56px 0}
  .section-head h2{font-size:26px}
  .info-card h3{font-size:19px}
  .faq-list{padding:4px 20px}
  .faq-q{font-size:16px;padding:20px 0}
  .cta-band{padding:36px 24px;border-radius:var(--r-md)}
  .cta-inner h2{font-size:26px}
  .cta-actions .btn{width:100%}
  .related-main{gap:12px;align-items:flex-start}
  .related-title{font-size:16.5px}
  .related-desc{font-size:13.5px}
  .related-arrow{display:none}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .compare-table tbody td,.compare-table thead th{padding:16px}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-property:opacity !important;
    transition-duration:.2s !important;
  }
  html{scroll-behavior:auto}
  .reveal{transform:none !important}
  .hero-media img{transform:none !important;animation:none !important}
  .float-card{animation:none !important;opacity:1 !important}
}