/* roulang page: index */
:root{
  --ink:#10201E;--ink-soft:#4C605C;--ink-mute:#7C8C88;
  --deep:#0C3A36;--deep-2:#16544E;
  --celadon:#9CBFB6;
  --coral:#E0674B;--coral-deep:#C4553B;
  --sand:#F7F4EE;--sand-2:#EFEAE1;
  --line:#DCD5C9;--card:#FFFFFF;
  --radius:10px;--radius-lg:12px;--radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(16,32,30,.04);
  --shadow-hover:0 16px 32px -16px rgba(12,58,54,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--sand);color:var(--ink);font-family:var(--sans);font-size:16.5px;line-height:1.85;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:var(--deep);text-decoration:none;transition:color .22s var(--ease)}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input{font:inherit}
:focus-visible{outline:2px solid var(--coral);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:640px){.container{padding:0 32px}}
@media(min-width:1024px){.container{padding:0 40px}}
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-tight{padding:48px 0}
@media(min-width:1024px){.section-tight{padding:64px 0}}
.section-alt{background:var(--sand-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
[id]{scroll-margin-top:150px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);white-space:nowrap}
.btn-primary{background:var(--deep);color:#fff}
.btn-primary:hover{background:var(--deep-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--deep);color:var(--deep);background:transparent}
.btn-ghost:hover{background:rgba(12,58,54,.06);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-coral{background:var(--coral);color:#fff}
.btn-coral:hover{background:var(--coral-deep);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* 标签 */
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--celadon);color:var(--deep);font-size:12.5px;font-weight:600;letter-spacing:.04em}
.tag-line{background:transparent;border:1px solid var(--line);color:var(--ink-soft);font-weight:500}

/* 头部 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,244,238,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
.header-top{display:flex;align-items:center;gap:14px;min-height:64px}
@media(min-width:1024px){.header-top{min-height:72px;gap:20px}}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:26px;height:26px;flex:none;color:var(--deep)}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-name{font-family:var(--serif);font-weight:700;font-size:17.5px;color:var(--deep);letter-spacing:.02em}
.brand-sub{font-size:10.5px;letter-spacing:.22em;color:var(--ink-mute);margin-top:3px}
.search-box{display:none}
@media(min-width:900px){.search-box{display:block;width:260px;margin-left:auto}}
.search-box input{width:100%;height:40px;border-radius:999px;border:1px solid transparent;background:var(--sand-2);padding:0 18px;font-size:14px;color:var(--ink);transition:border-color .2s var(--ease),background .2s var(--ease)}
.search-box input::placeholder{color:var(--ink-mute)}
.search-box input:focus{outline:none;border-color:var(--deep);background:#fff}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
@media(min-width:900px){.header-actions{margin-left:0}}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;color:var(--deep);cursor:pointer}
@media(min-width:900px){.nav-toggle{display:none}}
.channel-nav{border-top:1px solid var(--line)}
.channel-scroll{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-top:8px;padding-bottom:8px;scroll-snap-type:x proximity}
.channel-scroll::-webkit-scrollbar{display:none}
.channel{flex:none;padding:8px 16px;border-radius:999px;font-size:14.5px;color:var(--ink-soft);white-space:nowrap;scroll-snap-align:start;transition:background .22s var(--ease),color .22s var(--ease)}
.channel:hover{background:var(--sand-2);color:var(--deep)}
.channel.is-active{background:var(--deep);color:#fff}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:90;display:none}
.drawer.open{display:block}
.drawer-backdrop{position:absolute;inset:0;background:rgba(12,58,54,.45)}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:86%;max-width:340px;background:var(--sand);padding:22px;overflow-y:auto;box-shadow:-16px 0 40px -20px rgba(12,58,54,.5)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:38px;height:38px;border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;color:var(--deep);cursor:pointer}
.drawer-list{display:flex;flex-direction:column;gap:6px;margin:20px 0}
.drawer-list a{padding:12px 14px;border-radius:var(--radius-sm);background:#fff;border:1px solid var(--line);font-size:15px;color:var(--ink)}
.drawer-list a.is-active{background:var(--deep);color:#fff;border-color:var(--deep)}
body.no-scroll{overflow:hidden}

/* Hero */
.hero{position:relative;overflow:hidden;padding:44px 0 56px}
@media(min-width:1024px){.hero{padding:64px 0 84px}}
.hero-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px;align-items:center}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.16em;color:var(--deep-2);margin-bottom:16px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--coral)}
.hero h1{font-size:clamp(2.125rem,4.6vw,3.4rem);line-height:1.14;letter-spacing:-.02em}
.hero-sub{margin-top:20px;font-size:16.5px;line-height:1.85;color:var(--ink-soft);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 16px;margin-top:26px;font-size:12.5px;color:var(--ink-mute)}
.hero-trust span{display:inline-flex;align-items:center;gap:10px}
.hero-trust span+span::before{content:"";width:1px;height:11px;background:var(--line);display:inline-block}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
@media(max-width:640px){.hero-media img{max-height:240px}}
.hero-wave{position:absolute;right:-30px;bottom:-24px;width:220px;height:140px;color:var(--celadon);opacity:.5;pointer-events:none}

/* 板块标题 */
.section-head{max-width:720px;margin-bottom:40px}
.section-head .tag{margin-bottom:14px}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.28;letter-spacing:-.01em}
.section-head p{margin-top:14px;color:var(--ink-soft);font-size:16px;line-height:1.85}
.head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}

/* 痛点编号列表 */
.pain-list{max-width:780px}
.pain-item{display:grid;grid-template-columns:auto 1fr;gap:18px;padding:24px 0;border-top:1px solid var(--line)}
.pain-item:last-child{border-bottom:1px solid var(--line)}
.pain-num{font-family:var(--serif);font-weight:700;font-size:clamp(1.5rem,3vw,2.1rem);line-height:1;color:var(--celadon);font-variant-numeric:tabular-nums;padding-top:2px}
.pain-item h3{font-size:1.0625rem;line-height:1.5;margin-bottom:6px}
.pain-item p{color:var(--ink-soft);font-size:15px;line-height:1.75}

/* 交错图文 */
.feature{display:grid;gap:26px;align-items:center}
@media(min-width:900px){.feature{grid-template-columns:1fr 1fr;gap:56px}.feature.reverse .feature-media{order:2}}
.feature-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;transition:transform .3s var(--ease)}
.feature-media:hover img{transform:scale(1.03)}
.feature-body h3{font-size:1.25rem;line-height:1.45;margin-bottom:12px}
.feature-body p{color:var(--ink-soft);font-size:15.5px;line-height:1.85}
.feature-body .text-link{margin-top:18px}
.feature + .feature{margin-top:56px}
@media(min-width:900px){.feature + .feature{margin-top:72px}}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px;color:var(--deep);position:relative}
.text-link::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;background:var(--coral);transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease)}
.text-link:hover{color:var(--deep-2)}
.text-link:hover::after{transform:scaleX(1)}

/* 数字条 */
.stats{display:grid;grid-template-columns:repeat(2,1fr);border:1px solid var(--line);border-radius:var(--radius);background:var(--card);overflow:hidden}
@media(min-width:900px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{padding:30px 18px;text-align:center}
.stat:nth-child(even){border-left:1px solid var(--line)}
.stat:nth-child(n+3){border-top:1px solid var(--line)}
@media(min-width:900px){
  .stat{border-top:0!important;border-left:0!important}
  .stat+.stat{border-left:1px solid var(--line)!important}
}
.stat-num{font-family:var(--serif);font-weight:700;font-size:clamp(1.9rem,3.4vw,2.6rem);line-height:1;color:var(--deep);font-variant-numeric:tabular-nums}
.stat-label{margin-top:10px;font-size:13px;color:var(--ink-soft)}

/* 引用卡 */
.quote-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:900px){.quote-grid{grid-template-columns:1fr 1fr;gap:28px}}
.quote-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm)}
.quote-mark{font-family:var(--serif);font-size:42px;line-height:.8;color:var(--celadon);height:22px}
.quote-card blockquote{margin:14px 0 22px;font-size:16.5px;line-height:1.8;color:var(--ink)}
.quote-person{display:flex;align-items:center;gap:14px;padding-top:18px;border-top:1px solid var(--line)}
.quote-person img{width:64px;height:64px;border-radius:50%;object-fit:cover;flex:none}
.quote-name{font-weight:600;font-size:15px}
.quote-role{font-size:12.5px;color:var(--ink-mute)}

/* 资讯卡 */
.news-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease)}
.news-card:hover{transform:translateY(-2px);border-color:var(--celadon);box-shadow:var(--shadow-hover)}
.news-thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--sand-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-badge{position:absolute;left:12px;top:12px;padding:3px 10px;border-radius:999px;background:var(--celadon);color:var(--deep);font-size:12px;font-weight:600}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:1.0625rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-summary{color:var(--ink-soft);font-size:14px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--ink-mute)}
.news-meta .more{color:var(--deep);font-weight:600}
.news-empty{border:1px dashed var(--line);border-radius:var(--radius);padding:48px 24px;text-align:center;color:var(--ink-soft);background:var(--card)}
.news-empty svg{width:36px;height:36px;color:var(--celadon);margin:0 auto 14px}
.news-empty p{font-size:15px}

/* FAQ */
.faq-wrap{max-width:840px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-btn{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;background:none;border:0;cursor:pointer;text-align:left;font-family:var(--serif);font-size:1.0625rem;font-weight:600;color:var(--ink);transition:color .2s var(--ease)}
.faq-btn:hover{color:var(--deep-2)}
.faq-icon{flex:none;width:22px;height:22px;position:relative;color:var(--deep);transition:transform .26s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:2px;right:2px;top:10px;height:2px}
.faq-icon::after{top:2px;bottom:2px;left:10px;width:2px;transition:opacity .26s var(--ease)}
.faq-btn[aria-expanded="true"] .faq-icon::after{opacity:0}
.faq-btn[aria-expanded="true"] .faq-icon{transform:rotate(180deg)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-panel p{margin:0 0 22px;padding-left:12px;border-left:2px solid var(--celadon);color:var(--ink-soft);font-size:15.5px;line-height:1.85}

/* CTA 条 */
.cta-band{background:var(--deep);color:#fff;border-radius:var(--radius-lg);padding:34px 26px;display:grid;gap:24px;align-items:center}
@media(min-width:900px){.cta-band{grid-template-columns:1fr auto;padding:48px 56px;gap:40px}}
.cta-band h2{color:#fff;font-size:clamp(1.35rem,2.4vw,1.9rem);line-height:1.35}
.cta-band .cta-note{margin-top:14px;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.62);max-width:520px}

/* 页脚 */
.site-footer{background:var(--deep);color:rgba(255,255,255,.78);margin-top:64px;padding:56px 0 0}
@media(min-width:1024px){.site-footer{margin-top:96px;padding-top:72px}}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{color:#fff}
.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:280px}
.footer-title{font-family:var(--sans);font-size:13px;letter-spacing:.12em;color:#fff;margin:0 0 16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-links a{color:rgba(255,255,255,.74)}
.footer-links a:hover{color:var(--coral)}
.footer-info{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62)}
.footer-info strong{color:#fff;font-weight:600}
.footer-bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.55)}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:var(--coral)}

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

/* roulang page: category1 */
:root{
  --ink:#10201E;
  --ink-soft:#4C605C;
  --ink-mute:#7C8C88;
  --deep:#0C3A36;
  --deep-2:#16544E;
  --celadon:#9CBFB6;
  --coral:#E0674B;
  --coral-deep:#C4553B;
  --sand:#F7F4EE;
  --sand-2:#EFEAE1;
  --line:#DCD5C9;
  --card:#FFFFFF;
  --radius-card:10px;
  --radius-img:12px;
  --radius-btn:8px;
  --shadow-sm:0 1px 2px rgba(16,32,30,.04);
  --shadow-hover:0 16px 32px -16px rgba(12,58,54,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --font-sans:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--coral);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:640px){.container{padding-left:32px;padding-right:32px;}}
@media(min-width:1024px){.container{padding-left:40px;padding-right:40px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--sand);
  border-bottom:1px solid var(--line);
}
.topbar{
  display:flex;
  align-items:center;
  gap:16px;
  height:64px;
}
@media(min-width:1024px){.topbar{height:72px;gap:28px;}}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:26px;height:26px;
  color:var(--deep);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{
  font-family:var(--font-serif);
  font-weight:700;
  font-size:18px;
  letter-spacing:.01em;
  color:var(--deep);
}
@media(min-width:1024px){.brand-name{font-size:20px;}}
.brand-sub{
  font-size:11px;
  letter-spacing:.18em;
  color:var(--ink-mute);
  margin-top:2px;
}
.topbar-search{
  display:none;
  margin-left:auto;
  position:relative;
  width:240px;
}
@media(min-width:768px){.topbar-search{display:block;}}
@media(min-width:1024px){.topbar-search{width:280px;}}
.topbar-search input{
  width:100%;
  height:40px;
  border-radius:999px;
  border:1px solid transparent;
  background:var(--sand-2);
  color:var(--ink);
  font-size:14px;
  padding:0 16px 0 40px;
  font-family:inherit;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.topbar-search input::placeholder{color:var(--ink-mute);}
.topbar-search input:focus{
  outline:none;
  background:#fff;
  border-color:var(--deep);
  box-shadow:0 0 0 1.5px var(--deep) inset;
}
.topbar-search svg{
  position:absolute;
  left:14px;top:50%;
  transform:translateY(-50%);
  width:16px;height:16px;
  color:var(--ink-mute);
  pointer-events:none;
}
.topbar-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
}
@media(min-width:768px){.topbar-actions{margin-left:0;}}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:500;
  padding:10px 20px;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--deep);color:#fff;}
.btn-primary:hover{background:var(--deep-2);transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  background:transparent;
  color:var(--deep);
  border-color:var(--celadon);
}
.btn-ghost:hover{background:var(--sand-2);border-color:var(--deep-2);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-coral{background:var(--coral);color:#fff;}
.btn-coral:hover{background:var(--coral-deep);transform:translateY(-1px);box-shadow:0 16px 30px -18px rgba(224,103,75,.8);}
.btn-coral:active{transform:translateY(0);box-shadow:none;}
.btn-sm{padding:8px 16px;font-size:14px;}
.topbar-cta{display:none;}
@media(min-width:768px){.topbar-cta{display:inline-flex;}}
.menu-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:var(--card);
  color:var(--deep);
}
@media(min-width:1024px){.menu-toggle{display:none;}}
.menu-toggle:hover{background:var(--sand-2);}

/* 频道 Tabs */
.channel-nav{
  background:rgba(247,244,238,.94);
  border-top:1px solid var(--line);
  backdrop-filter:saturate(120%) blur(6px);
}
.channel-scroll{
  display:flex;
  align-items:center;
  gap:8px;
  height:52px;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  -ms-overflow-style:none;
  scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;
  scroll-snap-align:start;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--ink-soft);
  border:1px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
  white-space:nowrap;
}
.channel:hover{background:var(--sand-2);color:var(--deep);}
.channel.is-active{
  background:var(--deep);
  color:#fff;
  border-color:var(--deep);
}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(12,58,54,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
  z-index:80;
}
.drawer{
  position:fixed;
  top:0;right:0;
  height:100%;
  width:86%;
  max-width:360px;
  background:var(--sand);
  z-index:90;
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  display:flex;
  flex-direction:column;
  padding:20px;
  overflow-y:auto;
}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open{overflow:hidden;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:38px;height:38px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:var(--card);
  color:var(--deep);
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:var(--sand-2);}
.drawer-search{margin:20px 0 8px;}
.drawer-search input{
  width:100%;height:42px;border-radius:999px;border:1px solid var(--line);
  background:#fff;padding:0 16px;font-size:14px;font-family:inherit;color:var(--ink);
}
.drawer-search input:focus{outline:none;border-color:var(--deep);box-shadow:0 0 0 1.5px var(--deep) inset;}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-top:16px;}
.drawer-links a{
  padding:12px 14px;
  border-radius:var(--radius-btn);
  font-size:15px;
  color:var(--ink-soft);
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-links a:hover{background:var(--sand-2);color:var(--deep);}
.drawer-links a.is-active{background:var(--deep);color:#fff;}
.drawer-cta{margin-top:auto;padding-top:24px;}
.drawer-cta .btn{width:100%;}

/* ============ 页头 Banner ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.page-hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(12,58,54,.82) 0%,rgba(12,58,54,.62) 48%,rgba(12,58,54,.42) 100%);
}
.page-hero-inner{
  position:relative;
  padding:56px 0 52px;
}
@media(min-width:1024px){.page-hero-inner{padding:80px 0 72px;}}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.86);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.42);}
.breadcrumb .current{color:#fff;font-weight:500;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.12em;
  color:#F3E7DF;
  background:rgba(224,103,75,.22);
  border:1px solid rgba(224,103,75,.55);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:20px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--coral);}
.page-hero h1{
  font-family:var(--font-serif);
  font-weight:700;
  font-size:clamp(2rem,4.4vw,3.4rem);
  line-height:1.16;
  letter-spacing:-.02em;
  color:#fff;
  max-width:800px;
}
.page-hero-sub{
  margin-top:18px;
  max-width:620px;
  font-size:16px;
  line-height:1.9;
  color:rgba(255,255,255,.86);
}
@media(min-width:1024px){.page-hero-sub{font-size:17px;}}
.page-hero-actions{
  margin-top:30px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.page-hero .btn-ghost{
  color:#fff;
  border-color:rgba(255,255,255,.5);
}
.page-hero .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}

/* ============ 通用区块 ============ */
.section{padding:56px 0;}
@media(min-width:768px){.section{padding:76px 0;}}
@media(min-width:1024px){.section{padding:96px 0;}}
.section-alt{background:var(--sand-2);}
.section-head{max-width:720px;margin-bottom:40px;}
@media(min-width:1024px){.section-head{margin-bottom:52px;}}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.12em;
  color:var(--coral-deep);
  margin-bottom:12px;
}
.section-title{
  font-family:var(--font-serif);
  font-weight:700;
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  line-height:1.28;
  letter-spacing:-.01em;
  color:var(--deep);
}
.section-desc{
  margin-top:14px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-soft);
}

/* 快速提示条 */
.quick-strip{
  display:grid;
  grid-template-columns:1fr;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--card);
}
@media(min-width:768px){.quick-strip{grid-template-columns:repeat(3,1fr);}}
.quick-item{
  padding:24px 4px;
  display:flex;
  gap:14px;
  align-items:flex-start;
}
@media(min-width:768px){
  .quick-item{padding:28px 24px;}
  .quick-item + .quick-item{border-left:1px solid var(--line);}
}
@media(max-width:767px){
  .quick-item + .quick-item{border-top:1px solid var(--line);}
}
.quick-num{
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  color:var(--celadon);
  font-variant-numeric:tabular-nums;
  line-height:1.3;
  flex-shrink:0;
}
.quick-item h3{
  font-size:15px;
  font-weight:600;
  color:var(--deep);
  margin-bottom:4px;
}
.quick-item p{
  font-size:14px;
  line-height:1.7;
  color:var(--ink-soft);
}

/* ============ 时间轴 ============ */
.timeline{
  position:relative;
  margin-top:8px;
  padding-left:34px;
}
@media(min-width:768px){.timeline{padding-left:56px;}}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;
  top:6px;
  bottom:6px;
  width:1px;
  background:linear-gradient(180deg,var(--celadon),var(--line));
}
@media(min-width:768px){.timeline::before{left:15px;}}
.tl-step{
  position:relative;
  padding-bottom:36px;
}
.tl-step:last-child{padding-bottom:0;}
.tl-step::before{
  content:"";
  position:absolute;
  left:-30px;
  top:8px;
  width:11px;height:11px;
  border-radius:50%;
  background:var(--sand);
  border:2px solid var(--celadon);
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
@media(min-width:768px){.tl-step::before{left:-46px;width:13px;height:13px;}}
.tl-step.is-current::before{
  background:var(--coral);
  border-color:var(--coral);
  box-shadow:0 0 0 4px rgba(224,103,75,.16);
}
.tl-step:hover::before{border-color:var(--deep-2);}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  padding:22px;
  display:grid;
  gap:18px;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
@media(min-width:768px){
  .tl-card{padding:26px 28px;grid-template-columns:1fr 200px;align-items:start;gap:26px;}
}
@media(min-width:1024px){
  .tl-card{grid-template-columns:1fr 240px;}
}
.tl-card:hover{
  transform:translateY(-2px);
  border-color:var(--celadon);
  box-shadow:var(--shadow-hover);
}
.tl-step-label{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--ink-mute);
  margin-bottom:8px;
  font-variant-numeric:tabular-nums;
}
.tl-card h3{
  font-family:var(--font-serif);
  font-size:1.25rem;
  font-weight:600;
  line-height:1.4;
  color:var(--deep);
  margin-bottom:10px;
}
.tl-card p{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-soft);
}
.tl-card p + p{margin-top:10px;}
.tl-fig{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--sand-2);
  aspect-ratio:4/3;
}
.tl-fig img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .3s var(--ease);
}
.tl-card:hover .tl-fig img{transform:scale(1.03);}
.tl-note{
  margin-top:14px;
  font-size:13px;
  line-height:1.7;
  color:var(--ink-mute);
  border-left:2px solid var(--celadon);
  padding-left:12px;
}

/* ============ 适用场景 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media(min-width:768px){.scene-grid{grid-template-columns:repeat(2,1fr);gap:24px;}}
.scene-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.scene-card:hover{
  transform:translateY(-2px);
  border-color:var(--celadon);
  box-shadow:var(--shadow-hover);
}
.scene-fig{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--sand-2);
}
.scene-fig img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.scene-card:hover .scene-fig img{transform:scale(1.03);}
.scene-body{padding:22px;display:flex;flex-direction:column;gap:10px;}
.scene-body h3{
  font-family:var(--font-serif);
  font-size:1.2rem;
  font-weight:600;
  color:var(--deep);
  line-height:1.4;
}
.scene-body p{font-size:15px;line-height:1.8;color:var(--ink-soft);}
.text-link{
  position:relative;
  display:inline-block;
  font-size:14px;
  font-weight:500;
  color:var(--deep);
  padding-bottom:2px;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:1px;width:100%;
  background:var(--coral);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .26s var(--ease);
}
.text-link:hover{color:var(--coral-deep);}
.text-link:hover::after{transform:scaleX(1);}

/* ============ 要点清单 ============ */
.checklist-wrap{
  background:var(--sand-2);
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  padding:32px 24px;
}
@media(min-width:768px){.checklist-wrap{padding:48px 44px;}}
.checklist{
  display:grid;
  grid-template-columns:1fr;
  gap:20px 40px;
  margin-top:8px;
}
@media(min-width:768px){.checklist{grid-template-columns:repeat(2,1fr);gap:24px 48px;}}
.check-item{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:6px 0;
}
.check-dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--celadon);
  margin-top:11px;
  flex-shrink:0;
}
.check-item h3{
  font-size:15px;
  font-weight:600;
  color:var(--deep);
  margin-bottom:3px;
  line-height:1.55;
}
.check-item p{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-soft);
}

/* ============ FAQ ============ */
.faq-list{
  border-top:1px solid var(--line);
  max-width:860px;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-btn{
  width:100%;
  background:none;
  border:0;
  padding:22px 40px 22px 0;
  text-align:left;
  position:relative;
  font-family:var(--font-serif);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--deep);
  transition:color .2s var(--ease);
}
.faq-btn:hover{color:var(--coral-deep);}
.faq-btn .ico{
  position:absolute;
  right:6px;
  top:50%;
  width:14px;height:14px;
  transform:translateY(-50%);
  color:var(--ink-mute);
  transition:transform .26s var(--ease),color .26s var(--ease);
}
.faq-btn[aria-expanded="true"]{color:var(--deep);}
.faq-btn[aria-expanded="true"] .ico{transform:translateY(-50%) rotate(45deg);color:var(--coral);}
.faq-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-panel-inner{
  padding:0 0 24px 14px;
  font-size:15.5px;
  line-height:1.9;
  color:var(--ink-soft);
  border-left:2px solid var(--celadon);
  margin-left:2px;
}

/* ============ CTA ============ */
.cta-band{
  padding:0 0 64px;
}
@media(min-width:1024px){.cta-band{padding:0 0 96px;}}
.cta-inner{
  background:var(--deep);
  border-radius:var(--radius-img);
  padding:34px 24px;
  display:flex;
  flex-direction:column;
  gap:22px;
  position:relative;
  overflow:hidden;
}
@media(min-width:768px){
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:44px 48px;}
}
.cta-wave{
  position:absolute;
  right:-40px;
  bottom:-60px;
  width:340px;
  opacity:.16;
  color:var(--celadon);
  pointer-events:none;
  animation:waveShift 14s linear infinite alternate;
}
@keyframes waveShift{
  from{transform:translateX(0);}
  to{transform:translateX(-24px);}
}
.cta-text{position:relative;z-index:1;max-width:560px;}
.cta-text h2{
  font-family:var(--font-serif);
  font-size:clamp(1.35rem,2.4vw,1.85rem);
  font-weight:700;
  line-height:1.35;
  color:#fff;
  letter-spacing:-.01em;
}
.cta-text p{
  margin-top:10px;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--deep);
  color:rgba(255,255,255,.78);
  padding:56px 0 0;
}
@media(min-width:1024px){.site-footer{padding-top:72px;}}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
  padding-bottom:44px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:40px;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;}}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .brand-mark{color:var(--celadon);}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.52);}
.footer-desc{
  margin-top:14px;
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.66);
  max-width:320px;
}
.footer-title{
  font-size:13px;
  letter-spacing:.12em;
  color:rgba(255,255,255,.92);
  font-weight:600;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.68);
  transition:color .2s var(--ease);
  width:fit-content;
}
.footer-links a:hover{color:var(--coral);}
.footer-info{
  font-size:13.5px;
  line-height:1.9;
  color:rgba(255,255,255,.66);
}
.footer-info strong{color:#fff;font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: article */
:root{
    --ink:#10201E;
    --ink-soft:#4C605C;
    --ink-mute:#7C8C88;
    --deep:#0C3A36;
    --deep-2:#16544E;
    --celadon:#9CBFB6;
    --coral:#E0674B;
    --coral-deep:#C4553B;
    --sand:#F7F4EE;
    --sand-2:#EFEAE1;
    --line:#DCD5C9;
    --card:#FFFFFF;
    --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
    --sans:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    --r-card:10px;
    --r-img:12px;
    --r-btn:8px;
    --shadow-1:0 1px 2px rgba(16,32,30,.04);
    --shadow-2:0 16px 32px -16px rgba(12,58,54,.22);
    --ease:cubic-bezier(.2,.7,.2,1);
    --nav-h:114px;
  }
  @media (min-width:1024px){ :root{ --nav-h:122px; } }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--sand);
    color:var(--ink);
    font-family:var(--sans);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit}
  input{font:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  :focus-visible{outline:2px solid var(--coral);outline-offset:2px;border-radius:4px}
  ::selection{background:rgba(156,191,182,.45);color:var(--deep)}

  .container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
  @media (min-width:640px){ .container{padding-left:32px;padding-right:32px} }
  @media (min-width:1024px){ .container{padding-left:40px;padding-right:40px} }

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,244,238,.97);
    border-bottom:1px solid var(--line);
    backdrop-filter:saturate(140%) blur(8px);
  }
  .header-bar{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    height:64px;
  }
  @media (min-width:1024px){ .header-bar{height:72px} }

  .brand{display:inline-flex;align-items:center;gap:10px;color:var(--deep);flex:none}
  .brand-mark{width:26px;height:26px;flex:none;color:currentColor}
  .brand-text{display:flex;flex-direction:column;line-height:1.15}
  .brand-name{font-family:var(--serif);font-weight:700;font-size:19px;letter-spacing:-.01em;color:var(--deep)}
  .brand-sub{font-size:11px;letter-spacing:.18em;color:var(--ink-mute);margin-top:2px}

  .header-actions{display:flex;align-items:center;gap:12px}
  .search-box{
    display:flex;align-items:center;gap:8px;
    height:40px;padding:0 14px;width:264px;
    background:var(--sand-2);
    border:1px solid transparent;border-radius:999px;
    transition:border-color .22s var(--ease),background-color .22s var(--ease);
  }
  .search-box:focus-within{border-color:var(--deep);background:#fff}
  .search-box svg{width:16px;height:16px;color:var(--ink-mute);flex:none}
  .search-box input{
    flex:1;min-width:0;border:0;background:transparent;outline:none;
    font-size:14px;color:var(--ink);
  }
  .search-box input::placeholder{color:var(--ink-mute)}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
    transition:background-color .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
  }
  .btn-primary{background:var(--deep);color:#fff;box-shadow:var(--shadow-1)}
  .btn-primary:hover{background:var(--deep-2);transform:translateY(-1px);box-shadow:var(--shadow-2)}
  .btn-primary:active{transform:translateY(0)}
  .btn-outline{border-color:var(--line);color:var(--deep);background:transparent}
  .btn-outline:hover{border-color:var(--deep);background:rgba(12,58,54,.05);transform:translateY(-1px)}
  .btn-outline:active{transform:translateY(0)}
  .btn-coral{background:var(--coral);color:#fff}
  .btn-coral:hover{background:var(--coral-deep);transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(196,85,59,.7)}
  .btn-coral:active{transform:translateY(0)}
  .btn-sm{height:38px;padding:0 16px;font-size:14px}

  .menu-toggle{
    display:none;align-items:center;justify-content:center;
    width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);
    background:#fff;cursor:pointer;color:var(--deep);
  }
  .menu-toggle svg{width:18px;height:18px}
  @media (max-width:1023px){
    .search-box{display:none}
    .header-actions .btn-primary{display:none}
    .menu-toggle{display:inline-flex}
  }

  /* ---------- Channel nav ---------- */
  .channel-nav{border-top:1px solid var(--line);background:rgba(247,244,238,.94)}
  .channel-scroll{
    display:flex;align-items:center;gap:8px;
    height:50px;
    overflow-x:auto;overflow-y:hidden;
    scrollbar-width:none;-ms-overflow-style:none;
    scroll-snap-type:x proximity;
    -webkit-overflow-scrolling:touch;
  }
  .channel-scroll::-webkit-scrollbar{display:none}
  .channel{
    flex:none;display:inline-flex;align-items:center;
    height:34px;padding:0 16px;border-radius:999px;
    font-size:14px;color:var(--ink-soft);white-space:nowrap;
    scroll-snap-align:start;
    transition:background-color .22s var(--ease),color .22s var(--ease);
  }
  .channel:hover{background:var(--sand-2);color:var(--deep)}
  .channel.is-active{background:var(--deep);color:#fff}
  .channel.is-active:hover{background:var(--deep-2);color:#fff}

  /* ---------- Drawer ---------- */
  .drawer{display:none;position:fixed;inset:0;z-index:90}
  .drawer.is-open{display:block}
  .drawer-backdrop{position:absolute;inset:0;background:rgba(16,32,30,.48)}
  .drawer-panel{
    position:absolute;top:0;right:0;height:100%;width:86%;max-width:360px;
    background:var(--sand);padding:22px;overflow-y:auto;
    transform:translateX(100%);transition:transform .3s var(--ease);
    display:flex;flex-direction:column;gap:20px;
  }
  .drawer.is-open .drawer-panel{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between}
  .drawer-close{
    width:36px;height:36px;border:1px solid var(--line);border-radius:8px;
    background:#fff;font-size:20px;line-height:1;cursor:pointer;color:var(--ink-soft);
  }
  .drawer-close:hover{color:var(--coral);border-color:var(--celadon)}
  .drawer-search{
    display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;
    background:var(--sand-2);border-radius:999px;
  }
  .drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
  .drawer-links{display:flex;flex-direction:column;gap:4px}
  .drawer-links a{
    display:block;padding:11px 14px;border-radius:8px;font-size:15px;color:var(--ink-soft);
    transition:background-color .2s var(--ease),color .2s var(--ease);
  }
  .drawer-links a:hover{background:var(--sand-2);color:var(--deep)}
  .drawer-links a.is-active{background:var(--deep);color:#fff}

  /* ---------- Breadcrumb ---------- */
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    padding-top:26px;font-size:13px;color:var(--ink-mute);
  }
  .breadcrumb a{color:var(--ink-mute);transition:color .2s var(--ease)}
  .breadcrumb a:hover{color:var(--coral)}
  .breadcrumb .sep{color:#C9C2B4}
  .breadcrumb .current{
    color:var(--ink-mute);max-width:52ch;
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }

  /* ---------- Article head ---------- */
  .article-head{
    max-width:840px;padding:20px 0 34px;
    border-bottom:1px solid var(--line);
  }
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    height:26px;padding:0 12px;border-radius:999px;
    background:rgba(156,191,182,.3);color:var(--deep);
    font-size:13px;font-weight:600;letter-spacing:.02em;
  }
  .badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--coral)}
  .article-title{
    margin-top:16px;
    font-family:var(--serif);font-weight:700;
    font-size:clamp(1.75rem,3.4vw,2.75rem);
    line-height:1.22;letter-spacing:-.015em;color:var(--ink);
  }
  .article-lead{
    margin-top:18px;max-width:72ch;
    color:var(--ink-soft);font-size:16px;line-height:1.85;
  }
  .article-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
    margin-top:22px;font-size:13px;color:var(--ink-mute);
  }
  .article-meta span{display:inline-flex;align-items:center;gap:6px}
  .article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--celadon)}

  /* ---------- Article layout ---------- */
  .article-layout{
    display:grid;grid-template-columns:minmax(0,1fr);
    gap:48px;padding-top:44px;padding-bottom:72px;
  }
  @media (min-width:1024px){
    .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:64px;padding-bottom:88px}
  }

  .article-cover{margin-bottom:34px}
  .article-cover .frame{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
  .article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
  .article-cover figcaption{margin-top:10px;font-size:13px;color:var(--ink-mute)}

  /* ---------- Prose ---------- */
  .prose{max-width:720px;font-size:17px;line-height:1.9;color:var(--ink)}
  .prose > * + *{margin-top:20px}
  .prose h2{
    font-family:var(--serif);font-weight:700;color:var(--deep);
    font-size:clamp(1.35rem,2.2vw,1.75rem);line-height:1.4;letter-spacing:-.01em;
    margin-top:44px;scroll-margin-top:calc(var(--nav-h) + 20px);
  }
  .prose h3{
    font-size:1.2rem;line-height:1.5;font-weight:600;color:var(--ink);
    margin-top:32px;scroll-margin-top:calc(var(--nav-h) + 20px);
  }
  .prose h4{font-size:1.02rem;font-weight:600;margin-top:26px;color:var(--deep)}
  .prose p{color:var(--ink)}
  .prose strong{color:var(--deep);font-weight:600}
  .prose ul,.prose ol{list-style:none;padding-left:0}
  .prose li{position:relative;padding-left:22px}
  .prose li + li{margin-top:10px}
  .prose ul li::before{
    content:"";position:absolute;left:2px;top:.78em;
    width:7px;height:7px;border-radius:2px;background:var(--coral);
  }
  .prose ol{counter-reset:prose-ol}
  .prose ol li{counter-increment:prose-ol}
  .prose ol li::before{
    content:counter(prose-ol);position:absolute;left:0;top:0;
    font-family:var(--serif);font-weight:700;font-size:.92em;color:var(--celadon);
  }
  .prose blockquote{
    margin:28px 0;padding:18px 22px;
    background:var(--sand-2);
    border-left:3px solid var(--coral);
    border-radius:0 var(--r-card) var(--r-card) 0;
    color:var(--ink-soft);
  }
  .prose blockquote p{margin:0}
  .prose blockquote p + p{margin-top:12px}
  .prose img{border-radius:var(--r-card);margin-top:24px;height:auto}
  .prose figure img{margin-top:0}
  .prose figcaption{font-size:13px;color:var(--ink-mute);margin-top:10px}
  .prose a{color:var(--deep);border-bottom:1px solid var(--celadon);transition:color .2s var(--ease),border-color .2s var(--ease)}
  .prose a:hover{color:var(--coral);border-bottom-color:var(--coral)}
  .prose hr{border:0;border-top:1px solid var(--line);margin:36px 0}
  .prose table{
    width:100%;border-collapse:collapse;margin-top:24px;
    font-size:15px;line-height:1.7;border-radius:var(--r-card);overflow:hidden;
  }
  .prose thead th{
    background:var(--sand-2);text-align:left;font-weight:600;color:var(--deep);
    padding:13px 16px;border-bottom:1px solid var(--line);letter-spacing:.02em;
  }
  .prose tbody td{
    padding:13px 16px;border-bottom:1px solid var(--line);color:var(--ink-soft);
  }
  .prose tbody tr:nth-child(even){background:#FBF9F5}
  .prose code{
    background:var(--sand-2);padding:2px 6px;border-radius:4px;font-size:.9em;
  }

  .empty-state{
    border:1px dashed var(--line);border-radius:var(--r-card);
    padding:52px 28px;text-align:center;background:#FBF9F5;
  }
  .empty-state h2{font-family:var(--serif);font-size:1.35rem;color:var(--deep)}
  .empty-state p{margin:12px auto 22px;max-width:44ch;font-size:15px;color:var(--ink-soft)}

  .article-foot{
    margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  }

  /* ---------- Sidebar ---------- */
  .article-side{display:flex;flex-direction:column;gap:20px}
  @media (min-width:1024px){
    .article-side{position:sticky;top:calc(var(--nav-h) + 20px);align-self:start}
  }
  .side-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:20px;box-shadow:var(--shadow-1);
  }
  .side-title{
    font-family:var(--serif);font-size:15px;font-weight:700;color:var(--deep);
    letter-spacing:.03em;margin-bottom:14px;
  }
  .side-meta{display:flex;flex-direction:column;gap:10px;font-size:13px;color:var(--ink-soft)}
  .side-meta .row{display:flex;justify-content:space-between;gap:12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
  .side-meta .row:last-child{border-bottom:0;padding-bottom:0}
  .side-meta .k{color:var(--ink-mute);flex:none}
  .side-meta .v{text-align:right;color:var(--ink);font-weight:500}

  .side-list{display:flex;flex-direction:column;gap:16px}
  .side-item{display:flex;gap:12px;align-items:flex-start}
  .side-item .thumb{
    width:76px;height:56px;flex:none;border-radius:8px;overflow:hidden;background:var(--sand-2);
  }
  .side-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
  .side-item:hover .thumb img{transform:scale(1.05)}
  .side-item .t{font-size:14px;line-height:1.55;color:var(--ink);transition:color .2s var(--ease)}
  .side-item:hover .t{color:var(--coral)}
  .side-item .d{font-size:12px;color:var(--ink-mute);margin-top:5px}

  /* ---------- Related cards ---------- */
  .section{padding-top:64px;padding-bottom:64px}
  @media (min-width:1024px){ .section{padding-top:80px;padding-bottom:80px} }
  .section-head{
    display:flex;flex-wrap:wrap;gap:12px 24px;align-items:flex-end;justify-content:space-between;
    margin-bottom:32px;
  }
  .section-title{
    font-family:var(--serif);font-weight:700;color:var(--deep);
    font-size:clamp(1.4rem,2.4vw,1.95rem);line-height:1.28;letter-spacing:-.01em;
  }
  .section-sub{margin-top:10px;max-width:62ch;font-size:15px;color:var(--ink-soft)}

  .link-more{
    position:relative;display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--deep);padding-bottom:3px;
  }
  .link-more::after{
    content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;
    background:var(--coral);transform:scaleX(0);transform-origin:left;
    transition:transform .26s var(--ease);
  }
  .link-more:hover{color:var(--coral)}
  .link-more:hover::after{transform:scaleX(1)}

  .card-grid{
    display:grid;gap:24px;grid-template-columns:minmax(0,1fr);
  }
  @media (min-width:640px){ .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
  @media (min-width:1024px){ .card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px} }

  .post-card{
    display:flex;flex-direction:column;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--shadow-1);
    transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
  }
  .post-card:hover{transform:translateY(-2px);border-color:var(--celadon);box-shadow:var(--shadow-2)}
  .post-card .cover{aspect-ratio:16/10;overflow:hidden;background:var(--sand-2)}
  .post-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
  .post-card:hover .cover img{transform:scale(1.03)}
  .post-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .post-card .tag{
    align-self:flex-start;display:inline-flex;align-items:center;
    height:24px;padding:0 10px;border-radius:999px;
    background:rgba(156,191,182,.3);color:var(--deep);
    font-size:12px;font-weight:600;letter-spacing:.02em;
  }
  .post-card h3{
    font-family:var(--serif);font-size:17px;line-height:1.5;color:var(--ink);font-weight:700;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
    transition:color .2s var(--ease);
  }
  .post-card:hover h3{color:var(--deep)}
  .post-card p{
    font-size:14px;line-height:1.75;color:var(--ink-soft);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-card .meta{
    margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding-top:14px;border-top:1px solid var(--line);
    font-size:12.5px;color:var(--ink-mute);
  }
  .post-card .read{font-weight:600;color:var(--deep);transition:color .2s var(--ease)}
  .post-card:hover .read{color:var(--coral)}

  /* ---------- CTA ---------- */
  .cta-wrap{padding-bottom:80px}
  .cta-band{
    position:relative;overflow:hidden;
    background:var(--deep);color:#fff;border-radius:var(--r-img);
    padding:34px 26px;
    display:flex;flex-direction:column;gap:22px;
  }
  @media (min-width:768px){ .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:42px 46px} }
  .cta-band .waves{
    position:absolute;right:-40px;bottom:-40px;width:340px;height:200px;
    opacity:.18;pointer-events:none;
  }
  .cta-band h2{
    position:relative;font-family:var(--serif);font-weight:700;
    font-size:clamp(1.3rem,2.2vw,1.75rem);line-height:1.3;color:#fff;
  }
  .cta-band p{position:relative;margin-top:10px;font-size:14px;line-height:1.8;color:#C7D6D1;max-width:56ch}
  .cta-band .cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px;flex:none}
  .cta-band .btn-outline{border-color:rgba(255,255,255,.35);color:#fff}
  .cta-band .btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--deep);color:#BFCFCA;padding:60px 0 0;margin-top:0}
  .footer-grid{
    display:grid;gap:34px;grid-template-columns:minmax(0,1fr);
  }
  @media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px} }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .site-footer .brand-mark{color:var(--celadon)}
  .site-footer .brand-name{color:#F7F4EE;font-size:18px}
  .site-footer .brand-sub{color:#94A8A2}
  .footer-desc{font-size:14px;line-height:1.85;color:#A9BCB6;max-width:34ch}
  .footer-title{
    font-size:13px;letter-spacing:.12em;color:#8FA6A0;font-weight:600;margin-bottom:14px;
  }
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a{font-size:14px;color:#C7D6D1;transition:color .2s var(--ease)}
  .footer-links a:hover{color:var(--coral)}
  .footer-info{font-size:14px;line-height:2;color:#A9BCB6}
  .footer-info strong{color:#E7EFEC;font-weight:600}
  .footer-bottom{
    margin-top:44px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
    font-size:13px;color:#8FA6A0;
  }
  .footer-bottom a{color:#8FA6A0}
  .footer-bottom a:hover{color:var(--coral)}

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  }

/* roulang page: category2 */
:root{
    --ink:#10201E;
    --ink-soft:#4C605C;
    --ink-mute:#7C8C88;
    --deep:#0C3A36;
    --deep-2:#16544E;
    --celadon:#9CBFB6;
    --coral:#E0674B;
    --coral-deep:#C4553B;
    --sand:#F7F4EE;
    --sand-2:#EFEAE1;
    --line:#DCD5C9;
    --card:#FFFFFF;
    --radius-sm:8px;
    --radius:10px;
    --radius-lg:12px;
    --shadow-1:0 1px 2px rgba(16,32,30,.04);
    --shadow-2:0 16px 32px -16px rgba(12,58,54,.22);
    --ease:cubic-bezier(.2,.7,.2,1);
    --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
    --sans:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%;}
  .site-body{
    margin:0;
    background:var(--sand);
    color:var(--ink);
    font-family:var(--sans);
    font-size:16.5px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  .site-body img{display:block;max-width:100%;}
  .site-body a{color:inherit;text-decoration:none;}
  .site-body button{font-family:inherit;}
  .site-body :focus-visible{outline:2px solid var(--coral);outline-offset:2px;border-radius:4px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media (min-width:640px){.container{padding:0 32px;}}
  @media (min-width:1024px){.container{padding:0 40px;}}

  /* ============ 顶部第一行 ============ */
  .site-head{
    background:var(--sand);
    border-bottom:1px solid var(--line);
    position:relative;
    z-index:60;
  }
  .head-inner{
    display:flex;
    align-items:center;
    gap:14px;
    height:64px;
  }
  @media (min-width:1024px){.head-inner{height:72px;gap:18px;}}

  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    margin-right:auto;
    color:var(--deep);
    font-family:var(--serif);
    font-weight:700;
    font-size:1.0625rem;
    letter-spacing:-.01em;
    line-height:1.1;
  }
  .brand-mark{width:26px;height:26px;flex:0 0 auto;color:var(--deep);}
  .brand-text{display:flex;flex-direction:column;gap:3px;}
  .brand-name{display:block;}
  .brand-sub{
    display:block;
    font-family:var(--sans);
    font-weight:500;
    font-size:11px;
    letter-spacing:.16em;
    color:var(--ink-mute);
  }

  .search-box{
    display:none;
    align-items:center;
    gap:8px;
    width:250px;
    height:40px;
    padding:0 16px;
    border:1px solid transparent;
    border-radius:999px;
    background:var(--sand-2);
    transition:border-color .24s var(--ease),background .24s var(--ease);
  }
  .search-box:focus-within{border-color:var(--deep);background:var(--card);}
  .search-box svg{width:16px;height:16px;color:var(--ink-mute);flex:0 0 auto;}
  .search-box input{
    width:100%;
    border:0;
    background:transparent;
    font-size:14px;
    color:var(--ink);
    outline:none;
    font-family:var(--sans);
  }
  .search-box input::placeholder{color:var(--ink-mute);}
  @media (min-width:900px){.search-box{display:flex;}}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:11px 22px;
    border-radius:var(--radius-sm);
    font-size:15px;
    font-weight:600;
    line-height:1;
    border:1px solid transparent;
    cursor:pointer;
    transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
    white-space:nowrap;
  }
  .btn-primary{background:var(--deep);color:#fff;}
  .btn-primary:hover{background:var(--deep-2);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
  .btn-ghost{background:transparent;color:var(--deep);border-color:var(--deep);}
  .btn-ghost:hover{background:var(--deep);color:#fff;transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-coral{background:var(--coral);color:#fff;}
  .btn-coral:hover{background:var(--coral-deep);transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(224,103,75,.6);}
  .btn-coral:active{transform:translateY(0);}
  .head-cta{padding:10px 16px;font-size:14px;}
  .head-cta .cta-long{display:none;}
  @media (min-width:520px){.head-cta{padding:11px 22px;font-size:15px;}.head-cta .cta-long{display:inline;}.head-cta .cta-short{display:none;}}

  .menu-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:40px;height:40px;
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    background:var(--card);
    color:var(--deep);
    cursor:pointer;
    transition:border-color .24s var(--ease),background .24s var(--ease);
  }
  .menu-btn:hover{border-color:var(--celadon);background:var(--sand-2);}
  @media (min-width:1024px){.menu-btn{display:none;}}
  .menu-btn svg{width:20px;height:20px;}

  /* ============ 频道 Tabs ============ */
  .channel-nav{
    background:var(--card);
    border-bottom:1px solid var(--line);
    position:sticky;
    top:0;
    z-index:50;
  }
  .channel-scroll{
    display:flex;
    align-items:center;
    gap:8px;
    overflow-x:auto;
    padding-top:9px;
    padding-bottom:9px;
    scrollbar-width:none;
    -ms-overflow-style:none;
    scroll-snap-type:x proximity;
  }
  .channel-scroll::-webkit-scrollbar{display:none;}
  .channel{
    flex:0 0 auto;
    scroll-snap-align:start;
    padding:8px 18px;
    border-radius:999px;
    font-size:14.5px;
    font-weight:500;
    color:var(--ink-soft);
    white-space:nowrap;
    transition:background .24s var(--ease),color .24s var(--ease);
  }
  .channel:hover{background:var(--sand-2);color:var(--deep);}
  .channel.is-active{background:var(--deep);color:#fff;font-weight:600;}
  .channel.is-active:hover{background:var(--deep-2);color:#fff;}

  /* ============ 页头强排版区 ============ */
  .page-head{padding:40px 0 44px;border-bottom:1px solid var(--line);}
  @media (min-width:768px){.page-head{padding:56px 0 56px;}}
  @media (min-width:1024px){.page-head{padding:64px 0 60px;}}

  .crumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--ink-mute);
    margin-bottom:26px;
    flex-wrap:wrap;
  }
  .crumb a{color:var(--ink-mute);transition:color .2s var(--ease);}
  .crumb a:hover{color:var(--coral);}
  .crumb-sep{color:var(--line);}
  .crumb [aria-current]{color:var(--ink-soft);}

  .head-grid{display:grid;gap:28px;grid-template-columns:1fr;}
  @media (min-width:1024px){
    .head-grid{grid-template-columns:minmax(0,1fr) auto;align-items:flex-start;gap:56px;}
  }

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    margin:0 0 18px;
    font-size:13px;
    letter-spacing:.12em;
    color:var(--deep-2);
    background:rgba(156,191,182,.22);
    border-radius:999px;
    padding:6px 14px;
  }
  .eyebrow::before{
    content:"";
    width:6px;height:6px;border-radius:50%;
    background:var(--coral);
  }

  .title-xl{
    font-family:var(--serif);
    font-size:clamp(2.125rem,5.2vw,3.5rem);
    font-weight:700;
    line-height:1.1;
    letter-spacing:-.02em;
    margin:0 0 20px;
    color:var(--ink);
    max-width:15em;
  }
  .head-lead{
    margin:0;
    font-size:16.5px;
    line-height:1.9;
    color:var(--ink-soft);
    max-width:34em;
  }
  .head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

  .head-aside{
    display:none;
    align-items:flex-start;
    gap:16px;
    border-top:2px solid var(--ink);
    padding-top:16px;
  }
  @media (min-width:1024px){.head-aside{display:flex;}}
  .vtxt{
    writing-mode:vertical-rl;
    font-family:var(--serif);
    font-size:15px;
    letter-spacing:.3em;
    color:var(--deep-2);
    font-weight:600;
  }
  .vtxt-note{
    writing-mode:vertical-rl;
    font-size:12.5px;
    letter-spacing:.18em;
    color:var(--ink-mute);
    padding-top:6px;
  }

  /* ============ 通用板块 ============ */
  .section{padding:56px 0;}
  @media (min-width:768px){.section{padding:72px 0;}}
  @media (min-width:1024px){.section{padding:88px 0;}}
  .section-alt{background:var(--sand-2);}

  .sec-head{max-width:720px;margin-bottom:38px;}
  .sec-title{
    font-family:var(--serif);
    font-size:clamp(1.5rem,2.6vw,2.125rem);
    line-height:1.3;
    letter-spacing:-.01em;
    font-weight:700;
    margin:0 0 14px;
    color:var(--ink);
  }
  .sec-desc{margin:0;color:var(--ink-soft);font-size:16px;line-height:1.9;}

  /* ============ 对照双栏 ============ */
  .compare{display:grid;gap:22px;grid-template-columns:1fr;}
  @media (min-width:768px){.compare{grid-template-columns:1fr 1fr;gap:28px;}}
  .compare-card{
    position:relative;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-1);
    padding:32px 26px 28px;
    overflow:hidden;
    transition:border-color .26s var(--ease),box-shadow .26s var(--ease),transform .26s var(--ease);
  }
  @media (min-width:768px){.compare-card{padding:38px 34px 32px;}}
  .compare-card::before{
    content:"";
    position:absolute;
    inset:0 0 auto 0;
    height:3px;
    background:var(--celadon);
  }
  .compare-card.is-accent::before{background:var(--coral);}
  .compare-card:hover{transform:translateY(-2px);border-color:var(--celadon);box-shadow:var(--shadow-2);}
  .compare-tag{
    display:inline-block;
    font-size:12.5px;
    letter-spacing:.12em;
    color:var(--deep-2);
    background:rgba(156,191,182,.24);
    border-radius:999px;
    padding:4px 12px;
    margin-bottom:16px;
  }
  .compare-card.is-accent .compare-tag{color:#A5402A;background:rgba(224,103,75,.14);}
  .compare-title{
    font-family:var(--serif);
    font-size:1.3125rem;
    font-weight:700;
    line-height:1.4;
    margin:0 0 10px;
    color:var(--ink);
  }
  .compare-sub{margin:0 0 20px;font-size:14.5px;color:var(--ink-soft);line-height:1.8;}

  .check-list{list-style:none;margin:0;padding:0;}
  .check-item{
    display:flex;
    gap:12px;
    padding:14px 0;
    border-top:1px solid var(--line);
    font-size:15px;
    line-height:1.75;
    color:var(--ink-soft);
  }
  .check-item:first-child{border-top:0;padding-top:0;}
  .check-icon{
    flex:0 0 auto;
    width:18px;height:18px;
    margin-top:4px;
    color:var(--deep-2);
  }
  .compare-card.is-accent .check-icon{color:var(--coral-deep);}
  .check-item strong{color:var(--ink);font-weight:600;}

  /* ============ 设计化表格 ============ */
  .table-wrap{margin-top:8px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:var(--card);}
  .spec-table{width:100%;border-collapse:collapse;font-size:15px;}
  .spec-table thead th{
    background:var(--sand-2);
    font-size:12.5px;
    letter-spacing:.12em;
    font-weight:600;
    color:var(--ink-soft);
    text-align:left;
    padding:15px 20px;
    white-space:nowrap;
  }
  .spec-table tbody td{
    padding:17px 20px;
    border-top:1px solid var(--line);
    color:var(--ink-soft);
    line-height:1.7;
    vertical-align:middle;
  }
  .spec-table tbody tr{transition:background .22s var(--ease);}
  .spec-table tbody tr:hover{background:rgba(239,234,225,.5);}
  .spec-table tbody td:first-child{font-weight:600;color:var(--deep);white-space:nowrap;}

  @media (max-width:719px){
    .table-wrap{border:0;background:transparent;border-radius:0;}
    .spec-table{display:block;}
    .spec-table thead{display:none;}
    .spec-table tbody,.spec-table tr,.spec-table td{display:block;width:100%;}
    .spec-table tbody tr{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius);
      padding:16px 18px;
      margin-bottom:14px;
      box-shadow:var(--shadow-1);
    }
    .spec-table tbody tr:last-child{margin-bottom:0;}
    .spec-table tbody td{border-top:0;padding:5px 0;display:flex;gap:10px;align-items:baseline;}
    .spec-table tbody td::before{
      content:attr(data-label);
      flex:0 0 74px;
      font-size:12.5px;
      letter-spacing:.06em;
      color:var(--ink-mute);
      font-weight:500;
    }
    .spec-table tbody td:first-child{white-space:normal;}
  }

  /* ============ 交错图文 ============ */
  .split{display:grid;gap:26px;align-items:center;grid-template-columns:1fr;}
  @media (min-width:900px){
    .split{grid-template-columns:1fr 1fr;gap:56px;}
    .split.is-reverse .split-media{order:2;}
  }
  .split + .split{margin-top:44px;}
  @media (min-width:900px){.split + .split{margin-top:64px;}}
  .split-media{
    border-radius:var(--radius-lg);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--sand-2);
    aspect-ratio:16/10;
    box-shadow:var(--shadow-1);
  }
  .split-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
  .split-media:hover img{transform:scale(1.03);}
  .split-body h3{
    font-family:var(--serif);
    font-size:1.3125rem;
    line-height:1.4;
    font-weight:700;
    margin:0 0 14px;
    color:var(--ink);
  }
  .split-body p{margin:0 0 12px;color:var(--ink-soft);font-size:16px;line-height:1.9;}
  .split-body p:last-child{margin-bottom:0;}
  .text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    margin-top:6px;
    color:var(--deep);
    font-weight:600;
    font-size:15px;
    position:relative;
    padding-bottom:2px;
  }
  .text-link::after{
    content:"";
    position:absolute;
    left:0;bottom:0;
    width:100%;height:1.5px;
    background:var(--coral);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .26s var(--ease);
  }
  .text-link:hover{color:var(--coral-deep);}
  .text-link:hover::after{transform:scaleX(1);}

  /* ============ 误区引用块 ============ */
  .note-list{display:grid;gap:16px;grid-template-columns:1fr;}
  @media (min-width:900px){.note-list{grid-template-columns:repeat(3,1fr);gap:22px;}}
  .note{
    border-left:3px solid var(--coral);
    background:var(--card);
    border-radius:0 var(--radius) var(--radius) 0;
    padding:22px 22px 20px;
    box-shadow:var(--shadow-1);
    transition:box-shadow .26s var(--ease),transform .26s var(--ease);
  }
  .note:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
  .note-label{
    display:block;
    font-size:12.5px;
    letter-spacing:.12em;
    color:var(--coral-deep);
    margin-bottom:8px;
    font-weight:600;
  }
  .note p{margin:0;font-size:15px;line-height:1.85;color:var(--ink-soft);}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:860px;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:first-of-type{border-top:1px solid var(--line);}
  .faq-btn{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:22px 4px;
    background:none;
    border:0;
    text-align:left;
    font-size:16.5px;
    font-weight:600;
    color:var(--ink);
    cursor:pointer;
    line-height:1.6;
    transition:color .22s var(--ease);
  }
  .faq-btn:hover{color:var(--deep-2);}
  .faq-icon{
    position:relative;
    flex:0 0 auto;
    width:18px;height:18px;
    color:var(--deep-2);
    transition:transform .26s var(--ease);
  }
  .faq-icon::before,.faq-icon::after{
    content:"";
    position:absolute;
    background:currentColor;
    border-radius:1px;
  }
  .faq-icon::before{left:0;top:8px;width:18px;height:1.6px;}
  .faq-icon::after{left:8px;top:0;width:1.6px;height:18px;transition:opacity .26s var(--ease);}
  .faq-btn[aria-expanded="true"] .faq-icon{transform:rotate(90deg);}
  .faq-btn[aria-expanded="true"] .faq-icon::after{opacity:0;}
  .faq-panel{padding:0 4px 24px;}
  .faq-panel p{margin:0;padding-left:12px;font-size:16px;line-height:1.85;color:var(--ink-soft);}
  .faq-panel[hidden]{display:none;}

  /* ============ 相关频道 + CTA ============ */
  .channel-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;}
  .pill{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:10px 20px;
    border:1px solid var(--line);
    border-radius:999px;
    background:var(--card);
    font-size:14.5px;
    color:var(--deep);
    font-weight:500;
    transition:border-color .24s var(--ease),background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
  }
  .pill:hover{border-color:var(--celadon);background:var(--sand-2);transform:translateY(-1px);}
  .pill svg{width:14px;height:14px;color:var(--celadon);}

  .cta-band{
    margin-top:44px;
    background:var(--deep);
    color:#fff;
    border-radius:var(--radius-lg);
    padding:36px 26px;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    position:relative;
    overflow:hidden;
  }
  @media (min-width:768px){.cta-band{padding:46px 44px;}}
  .cta-band::after{
    content:"";
    position:absolute;
    right:-60px;bottom:-70px;
    width:260px;height:260px;
    border-radius:50%;
    border:1px solid rgba(156,191,182,.22);
    pointer-events:none;
  }
  .cta-text{position:relative;z-index:1;max-width:34em;}
  .cta-title{
    font-family:var(--serif);
    font-size:clamp(1.375rem,2.4vw,1.875rem);
    line-height:1.35;
    font-weight:700;
    margin:0 0 10px;
  }
  .cta-note{margin:0;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
  .cta-actions{position:relative;z-index:1;display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
  .cta-fine{font-size:12.5px;color:rgba(255,255,255,.55);margin:0;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--deep);color:#e8efec;padding:56px 0 0;margin-top:72px;}
  @media (min-width:768px){.site-footer{padding:72px 0 0;}}
  .footer-grid{display:grid;gap:36px;grid-template-columns:1fr;}
  @media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px 32px;}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}}

  .footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-family:var(--serif);font-weight:700;font-size:1.0625rem;line-height:1.1;}
  .footer-brand .brand-mark{width:26px;height:26px;color:var(--celadon);}
  .footer-brand .brand-name{display:block;}
  .footer-brand .brand-sub{
    display:block;
    font-family:var(--sans);
    font-weight:500;
    font-size:11px;
    letter-spacing:.16em;
    color:rgba(156,191,182,.9);
    margin-top:3px;
  }
  .footer-desc{margin:18px 0 0;font-size:14px;line-height:1.85;color:rgba(232,239,236,.72);max-width:26em;}
  .footer-title{font-size:13px;letter-spacing:.12em;font-weight:600;color:var(--celadon);margin:0 0 16px;}
  .footer-links{display:flex;flex-direction:column;}
  .footer-links a{
    display:block;
    padding:6px 0;
    font-size:14.5px;
    color:rgba(232,239,236,.82);
    transition:color .22s var(--ease);
  }
  .footer-links a:hover{color:var(--coral);}
  .footer-info{margin:0;font-size:14px;line-height:1.95;color:rgba(232,239,236,.72);}
  .footer-info strong{color:#fff;font-weight:600;}
  .footer-bottom{
    margin-top:44px;
    border-top:1px solid rgba(255,255,255,.12);
    padding:20px 0;
    display:flex;
    flex-wrap:wrap;
    gap:10px 24px;
    justify-content:space-between;
    font-size:13px;
    color:rgba(232,239,236,.55);
  }

  /* ============ 移动端抽屉 ============ */
  .drawer-mask{
    position:fixed;
    inset:0;
    background:rgba(12,32,30,.45);
    z-index:80;
    opacity:0;
    transition:opacity .26s var(--ease);
  }
  .drawer-mask.is-visible{opacity:1;}
  .site-drawer{
    position:fixed;
    top:0;right:0;
    height:100%;
    width:86%;
    max-width:340px;
    background:var(--card);
    z-index:90;
    transform:translateX(100%);
    transition:transform .28s var(--ease);
    padding:22px 22px 32px;
    overflow-y:auto;
    display:flex;
    flex-direction:column;
    gap:22px;
    box-shadow:-12px 0 32px -20px rgba(12,58,54,.4);
  }
  .site-drawer.is-open{transform:translateX(0);}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
  .drawer-title{font-family:var(--serif);font-weight:700;font-size:1rem;color:var(--deep);}
  .drawer-close{
    width:36px;height:36px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    background:transparent;
    color:var(--deep);
    cursor:pointer;
    transition:background .22s var(--ease),border-color .22s var(--ease);
  }
  .drawer-close:hover{background:var(--sand-2);border-color:var(--celadon);}
  .drawer-search{
    display:flex;align-items:center;gap:8px;
    height:42px;padding:0 16px;
    background:var(--sand-2);
    border:1px solid transparent;
    border-radius:999px;
  }
  .drawer-search:focus-within{border-color:var(--deep);background:var(--card);}
  .drawer-search svg{width:16px;height:16px;color:var(--ink-mute);}
  .drawer-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);font-family:var(--sans);}
  .drawer-links{display:flex;flex-direction:column;gap:4px;}
  .drawer-links a{
    padding:12px 14px;
    border-radius:var(--radius-sm);
    font-size:15px;
    color:var(--ink-soft);
    transition:background .22s var(--ease),color .22s var(--ease);
  }
  .drawer-links a:hover{background:var(--sand-2);color:var(--deep);}
  .drawer-links a.is-active{background:var(--deep);color:#fff;font-weight:600;}
  @media (min-width:1024px){.site-drawer,.drawer-mask{display:none;}}

  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    *,*::before,*::after{
      animation-duration:.001ms !important;
      animation-iteration-count:1 !important;
      transition-duration:.001ms !important;
    }
  }