/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --brand-700:#0F6B55;
  --brand-600:#128A6C;
  --brand-500:#17A97F;
  --brand-300:#7ED9B8;
  --brand-100:#E4F6EF;
  --accent-500:#FF7A45;
  --accent-600:#E85F2B;
  --accent-100:#FFEDE4;
  --bg-page:#F5F3EE;
  --bg-card:#FFFFFF;
  --bg-dark:#0B1512;
  --bg-warm:#FBF6EF;
  --line:#E9E5DD;
  --line-strong:#CFE7DE;
  --text-1:#12201C;
  --text-2:#4A5A55;
  --text-3:#7C8B86;
  --grad:linear-gradient(135deg,#128A6C 0%,#17A97F 48%,#7ED9B8 100%);
  --shadow-1:0 1px 2px rgba(18,32,28,.06),0 8px 24px rgba(18,32,28,.06);
  --shadow-2:0 18px 48px rgba(15,107,85,.14);
  --r-btn:14px;
  --r-sm:20px;
  --r-card:24px;
  --r-lg:32px;
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --sidebar-w:264px;
  --pad-x:40px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-page);
  font-variant-numeric:tabular-nums;
}
img{display:block;max-width:100%;height:auto;background:var(--grad)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
input{font:inherit}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
::selection{background:var(--brand-100);color:var(--brand-700)}

/* ============ 布局骨架 ============ */
.shell{min-height:100vh}
.content{margin-left:var(--sidebar-w);min-height:100vh;overflow-x:hidden}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--pad-x)}
.section{margin-top:88px}

/* ============ 左侧导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--bg-card);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 20px;
  overflow-y:auto;
  z-index:60;
}
.brand{display:flex;align-items:center;gap:12px;height:88px;padding:0 8px;flex:0 0 auto}
.brand__mark{
  width:36px;height:36px;border-radius:12px;flex:0 0 36px;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;
  font-size:16px;font-weight:700;
  box-shadow:0 8px 18px rgba(18,138,108,.28);
}
.brand__name{font-size:18px;font-weight:600;letter-spacing:-.2px;color:var(--text-1);white-space:nowrap}
.nav{display:flex;flex-direction:column;gap:6px;margin-top:8px}
.nav__item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:48px;padding:0 16px;border-radius:14px;
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:background var(--t),color var(--t),transform var(--t);
}
.nav__item svg{width:18px;height:18px;flex:0 0 18px;transition:transform var(--t)}
.nav__item:hover{background:var(--brand-100);color:var(--brand-700);transform:translateX(-2px);text-decoration:none}
.nav__item:hover svg{transform:translateX(2px)}
.nav__item.is-active{background:var(--grad);color:#fff;box-shadow:0 10px 22px rgba(18,138,108,.24)}
.nav__item.is-active::before{
  content:"";position:absolute;left:-16px;top:14px;width:3px;height:20px;
  border-radius:3px;background:var(--brand-600);
}
.sidebar__foot{margin-top:auto;padding-top:28px;display:flex;flex-direction:column;gap:12px}
.sidebar__copy{font-size:12px;line-height:1.7;color:var(--text-3);padding:0 8px;word-break:break-all}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:80;
  align-items:center;justify-content:space-between;padding:0 16px;
  background:rgba(255,255,255,.95);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar .brand{height:auto;padding:0;gap:10px}
.topbar .brand__mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;font-size:15px}
.topbar .brand__name{font-size:16px}
.hamburger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;
}
.hamburger span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1)}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text-1);
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.mask{
  position:fixed;inset:0;z-index:85;background:rgba(11,21,18,.48);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:90;
  width:80vw;max-width:340px;height:100%;
  background:#fff;padding:20px;display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;transform:translateX(102%);
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:10px}
.drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;font-size:18px;color:var(--text-2)}
.drawer .nav{margin-top:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 22px rgba(18,138,108,.22)}
.btn--primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-2);text-decoration:none}
.btn--primary:active{transform:scale(.98);box-shadow:0 6px 14px rgba(18,138,108,.2)}
.btn--ghost{background:#fff;border:1.5px solid var(--line-strong);color:var(--brand-700)}
.btn--ghost:hover{border-color:var(--brand-600);background:#F1FAF6;text-decoration:none}
.btn--text{height:auto;padding:0;background:none;color:var(--brand-700);font-weight:600}
.btn--text .arrow{transition:transform var(--t)}
.btn--text:hover{text-decoration:underline}
.btn--text:hover .arrow{transform:translateX(4px)}
.btn--sm{height:42px;padding:0 20px;font-size:14px}
.btn--block{width:100%}
.btn[disabled]{background:#DDD9D2;color:#8E9A95;box-shadow:none;cursor:not-allowed}

/* ============ 徽章与标签 ============ */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;line-height:1.5;
}
.pill--accent{background:var(--accent-100);color:var(--accent-600)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--brand-600);
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--accent-500)}

/* ============ 板块标题 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.sec-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.3px}
.sec-head p{margin-top:10px;font-size:15.5px;color:var(--text-2);max-width:640px}

/* ============ Hero ============ */
.hero{padding-top:88px}
.hero__grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;min-height:560px}
.hero h1{margin-top:18px;font-size:46px;line-height:1.2;font-weight:700;letter-spacing:-.6px}
.hero__sub{margin-top:20px;max-width:560px;font-size:17px;color:var(--text-2)}
.hero__actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:32px}
.hero__media{position:relative}
.hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:28px}
.hero__media::after{
  content:"";position:absolute;inset:0;border-radius:28px;
  background:var(--grad);opacity:.14;pointer-events:none;
}
.hero__card{
  position:absolute;right:-20px;bottom:-18px;z-index:2;
  min-width:200px;padding:18px 20px;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow-2);
}
.hero__card-title{font-size:13px;font-weight:600;color:var(--text-3)}
.hero__card-list{display:flex;flex-direction:column;gap:6px;margin-top:8px}
.hero__card-list li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-1)}
.hero__card-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);flex:0 0 6px}

/* ============ 数据徽章 ============ */
.stats{display:flex;flex-wrap:wrap;gap:16px;margin-top:38px}
.stat{
  min-width:150px;padding:16px 20px;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow-1);
}
.stat:nth-child(even){transform:translateY(8px)}
.stat__num{
  font-size:28px;font-weight:700;line-height:1.2;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat__label{margin-top:2px;font-size:13px;color:var(--text-2)}

/* ============ 品牌主张带 ============ */
.claim{position:relative;margin-top:88px;background:var(--bg-dark);overflow:hidden}
.claim::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad)}
.claim__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:32px;padding:56px 0;
}
.claim__text{max-width:660px;font-size:26px;line-height:1.5;font-weight:700;color:#fff;letter-spacing:-.3px}
.claim__tags{display:flex;flex-wrap:wrap;gap:10px}
.claim .pill{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#B9E7D6}

/* ============ 故事 / 编号叙事 ============ */
.story{
  padding:10px 32px;
  background:#fff;border:1px solid var(--line);border-radius:28px;
  box-shadow:var(--shadow-1);
}
.story__item{
  display:grid;grid-template-columns:240px 1fr;gap:32px;
  padding:30px 0;border-bottom:1px dashed var(--line);
}
.story__item:last-child{border-bottom:0}
.story__num{display:block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent-500)}
.story__item h3{margin-top:6px;font-size:20px;line-height:1.45;font-weight:600}
.story__item p{font-size:16px;color:var(--text-2)}

/* ============ 精选内容卡（非对称栅格） ============ */
.feature{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.feature__big{
  display:grid;grid-template-columns:1fr 1fr;
  background:#fff;border:1px solid var(--line);border-radius:28px;overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.feature__big:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong);text-decoration:none}
.feature__big figure{position:relative;min-height:300px}
.feature__big figure img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.feature__big .body{display:flex;flex-direction:column;justify-content:center;gap:14px;padding:36px 32px}
.feature__big h3{font-size:23px;line-height:1.42;font-weight:700;letter-spacing:-.3px}
.feature__big p{font-size:15.5px;color:var(--text-2)}
.feature__big .meta{font-size:13px;color:var(--text-3)}
.feature__side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.mini{
  display:grid;grid-template-columns:140px 1fr;
  background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong);text-decoration:none}
.mini figure{position:relative;min-height:158px}
.mini figure img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.mini .body{display:flex;flex-direction:column;justify-content:center;gap:10px;padding:20px 22px}
.mini h3{font-size:17.5px;line-height:1.45;font-weight:600}
.mini p{font-size:13.5px;color:var(--text-3)}

/* ============ 最新信息列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong);text-decoration:none}
.post-card__cover{position:relative;display:block;aspect-ratio:16/10;background:var(--grad)}
.post-card__cover::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(120% 90% at 12% 8%,rgba(255,255,255,.28),transparent 55%);
}
.post-card__cover .corner{
  position:absolute;top:12px;right:12px;z-index:2;
  padding:4px 10px;border-radius:999px;
  background:var(--accent-500);color:#fff;font-size:12px;font-weight:600;line-height:1.6;
}
.post-card__body{display:flex;flex-direction:column;flex:1;gap:12px;padding:22px 22px 24px}
.post-card__title{
  font-size:18px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__desc{
  font-size:14.5px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.post-card__meta .arrow{color:var(--brand-600);transition:transform var(--t)}
.post-card:hover .post-card__meta .arrow{transform:translateX(4px)}

/* ============ 空态 ============ */
.empty{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;text-align:center;
  background:#fff;border:1px dashed var(--line-strong);border-radius:24px;
}
.empty svg{width:44px;height:44px;color:var(--brand-300)}
.empty p{font-size:15.5px;color:var(--text-2)}

/* ============ 信任背书 ============ */
.trust-wrap{padding:40px;background:var(--bg-warm);border:1px solid #EFE7DA;border-radius:28px}
.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote{
  padding:26px 28px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand-500);
  border-radius:20px;box-shadow:var(--shadow-1);
}
.quote p{font-size:15px;line-height:1.8;color:var(--text-2)}
.quote footer{margin-top:14px;font-size:13px;font-weight:600;color:var(--brand-700)}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq__item{
  background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq__item.open{border-color:var(--line-strong);box-shadow:var(--shadow-1)}
.faq__q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:20px 24px;text-align:left;
  font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq__icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-700);
  display:grid;place-items:center;font-size:18px;font-weight:500;line-height:1;
  transition:transform 240ms cubic-bezier(.2,.7,.3,1),background var(--t),color var(--t);
}
.faq__item.open .faq__icon{transform:rotate(45deg);background:var(--brand-600);color:#fff}
.faq__a{max-height:0;overflow:hidden;transition:max-height 240ms cubic-bezier(.2,.7,.3,1)}
.faq__a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ CTA ============ */
.cta-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.08fr .92fr;gap:40px;align-items:center;
  padding:48px;border-radius:var(--r-lg);background:var(--grad);color:#fff;
}
.cta-card::after{
  content:"";position:absolute;right:-70px;top:-70px;width:300px;height:300px;
  border-radius:50%;background:rgba(255,255,255,.13);
}
.cta-card h2{font-size:30px;line-height:1.36;font-weight:700;letter-spacing:-.3px}
.cta-card p{margin-top:14px;max-width:470px;font-size:15.5px;color:rgba(255,255,255,.9)}
.cta-form-wrap{position:relative;z-index:1}
.cta-form{display:flex;gap:12px}
.cta-form input{
  flex:1;height:44px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.6);background:#fff;color:var(--text-1);
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{outline:none;box-shadow:0 0 0 2px #fff,0 0 0 4px var(--brand-700)}
.cta-form .btn{height:44px;background:#fff;color:var(--brand-700);box-shadow:none;padding:0 24px}
.cta-form .btn:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(11,21,18,.18)}
.form-tip{margin-top:12px;font-size:13px;color:rgba(255,255,255,.82);min-height:20px}
.form-tip.is-error{color:#FFE1D6}
.form-tip.is-ok{color:#E9FFF6}

/* ============ 页脚 ============ */
.footer{
  position:relative;margin-top:88px;background:var(--bg-dark);color:rgba(255,255,255,.72);
}
.footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad)}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;padding:64px 0 40px}
.footer__col{padding:0 28px;border-left:1px solid rgba(255,255,255,.08)}
.footer__col:first-child{padding-left:0;border-left:0}
.footer__col:last-child{padding-right:0}
.footer h4{margin-bottom:16px;font-size:14px;font-weight:600;color:#fff}
.footer a{display:inline-block;padding:5px 0;font-size:14px;color:rgba(255,255,255,.72);transition:color var(--t),transform var(--t)}
.footer a:hover{color:#fff;transform:translateX(2px);text-decoration:none}
.footer__brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer__brand .brand__mark{width:34px;height:34px;flex:0 0 34px;border-radius:11px;font-size:15px}
.footer__brand span{font-size:17px;font-weight:600;color:#fff}
.footer__desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px}
.footer__list{display:flex;flex-direction:column}
.footer__bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 0 34px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer__bottom span{word-break:break-all}

/* ============ 断点：1279 ============ */
@media (max-width:1279px){
  :root{--sidebar-w:232px;--pad-x:32px}
  .hero h1{font-size:42px}
  .hero__grid{gap:40px}
  .sec-head h2{font-size:27px}
}

/* ============ 断点：1023 ============ */
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .content{margin-left:0;padding-top:64px}
  .hero{padding-top:56px}
  .hero__grid{grid-template-columns:1fr;min-height:0;gap:44px}
  .hero h1{font-size:34px}
  .section{margin-top:72px}
  .claim{margin-top:72px}
  .footer{margin-top:72px}
  .story{padding:8px 24px}
  .story__item{grid-template-columns:1fr;gap:12px;padding:26px 0}
  .feature{grid-template-columns:1fr}
  .feature__big figure{min-height:260px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .trust-wrap{padding:28px}
  .trust{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;gap:28px;padding:40px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px}
  .footer__col{padding:0;border-left:0}
  .hero__card{right:12px;bottom:-14px}
}

/* ============ 断点：768 ============ */
@media (max-width:768px){
  :root{--pad-x:20px}
  .hero h1{font-size:30px}
  .hero__sub{font-size:16px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .sec-head h2{font-size:23px}
  .stats{display:grid;grid-template-columns:1fr 1fr;gap:12px}
  .stat{min-width:0;padding:14px 16px}
  .stat:nth-child(even){transform:translateY(6px)}
  .stat__num{font-size:24px}
  .claim__inner{padding:40px 0;gap:22px}
  .claim__text{font-size:21px}
  .feature__big{grid-template-columns:1fr}
  .mini{grid-template-columns:112px 1fr}
  .post-grid{grid-template-columns:1fr}
  .hero__actions{flex-direction:column;align-items:stretch;gap:12px}
  .hero__actions .btn{width:100%}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}

/* ============ 断点：520 ============ */
@media (max-width:520px){
  .hero h1{font-size:28px}
  .hero__card{position:static;margin-top:16px;min-width:0;box-shadow:var(--shadow-1)}
  .hero__media::after{border-radius:24px}
  .stats{grid-template-columns:1fr}
  .stat:nth-child(even){transform:none}
  .story{padding:6px 18px;border-radius:22px}
  .feature__big{border-radius:22px}
  .feature__big .body{padding:24px 22px}
  .feature__big h3{font-size:20px}
  .mini{grid-template-columns:1fr}
  .mini figure{min-height:150px}
  .cta-card{padding:28px 22px;border-radius:24px}
  .cta-card h2{font-size:23px}
  .faq__q{padding:18px 18px;font-size:15.5px}
  .faq__a-inner{padding:0 18px 20px}
  .trust-wrap{padding:20px;border-radius:22px}
}

/* roulang page: article */
:root{
  --brand-700:#0F6B55;--brand-600:#128A6C;--brand-500:#17A97F;--brand-300:#7ED9B8;--brand-100:#E4F6EF;
  --accent-500:#FF7A45;--accent-600:#E85F2B;--accent-100:#FFEDE4;
  --bg-page:#F5F3EE;--bg-card:#FFFFFF;--bg-dark:#0B1512;
  --line:#E9E5DD;--line-strong:#CFE7DE;
  --text-1:#12201C;--text-2:#4A5A55;--text-3:#7C8B86;
  --grad:linear-gradient(135deg,#128A6C 0%,#17A97F 48%,#7ED9B8 100%);
  --r-btn:14px;--r-sm:20px;--r-lg:24px;--r-xl:32px;
  --shadow-1:0 1px 2px rgba(18,32,28,.06),0 8px 24px rgba(18,32,28,.06);
  --shadow-2:0 18px 48px rgba(15,107,85,.14);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --sidebar-w:264px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-page);color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto;background:linear-gradient(135deg,#128A6C,#7ED9B8)}
a{color:var(--brand-700);text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
::selection{background:var(--brand-100);color:var(--brand-700)}
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 16px;border-radius:0 0 12px 0;z-index:99}
.skip:focus{left:0}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:20px 16px 16px;
  overflow-y:auto;z-index:50;
}
.brand{display:flex;align-items:center;gap:10px;height:88px;padding:0 8px;flex:none}
.brand__mark{width:36px;height:36px;flex:none;border-radius:11px;background:var(--grad);display:grid;place-items:center;box-shadow:var(--shadow-1)}
.brand__mark svg{width:20px;height:20px;stroke:#fff}
.brand__text{font-size:18px;font-weight:600;letter-spacing:-.3px;color:var(--text-1);line-height:1.2}
.brand__sub{display:block;font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.02em;margin-top:2px}
.nav{display:flex;flex-direction:column;gap:6px;margin-top:6px}
.nav__item{
  position:relative;display:flex;align-items:center;gap:12px;height:48px;padding:0 16px;
  border-radius:var(--r-btn);color:var(--text-2);font-size:15px;font-weight:500;
  transition:background var(--t),color var(--t),transform var(--t);
}
.nav__item svg{width:18px;height:18px;flex:none;transition:transform var(--t)}
.nav__item:hover{background:var(--brand-100);color:var(--brand-700);transform:translateX(-2px)}
.nav__item:hover svg{transform:translateX(2px)}
.nav__item.is-active{background:linear-gradient(135deg,#128A6C 0%,#17A97F 100%);color:#fff;font-weight:600}
.nav__item.is-active svg{transform:none}
.nav__item.is-active::before{
  content:"";position:absolute;left:-6px;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:999px;background:var(--accent-500);
}
.side-spacer{flex:1 1 auto;min-height:24px}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;height:44px;border-radius:var(--r-btn);
  background:var(--grad);color:#fff;font-size:14px;font-weight:600;box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t);
}
.side-cta:hover{transform:translateY(-1px);box-shadow:var(--shadow-2)}
.side-cta:active{transform:scale(.98)}
.side-cta svg{width:16px;height:16px;stroke:#fff}
.side-foot{margin:14px 4px 0;font-size:11px;line-height:1.7;color:var(--text-3);letter-spacing:.02em;flex:none}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:60;
  background:rgba(255,255,255,.94);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar .brand{height:64px;padding:0}
.topbar .brand__mark{width:32px;height:32px;border-radius:10px}
.topbar .brand__text{font-size:16px}
.topbar .brand__sub{display:none}
.burger{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--line);background:#fff}
.burger svg{width:20px;height:20px;stroke:var(--text-1)}
.drawer-mask{position:fixed;inset:0;background:rgba(11,21,18,.48);opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:80vw;max-width:340px;background:#fff;z-index:80;
  transform:translateX(102%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;padding:20px 18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__title{font-size:15px;font-weight:600;color:var(--text-1)}
.drawer__close{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--line)}
.drawer__close svg{width:18px;height:18px;stroke:var(--text-1)}
body.is-locked{overflow:hidden}

/* ---------- 内容区 ---------- */
.content-area{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:36px 40px 64px;flex:1 1 auto}
@media(min-width:1280px){:root{--sidebar-w:272px}}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-3);transition:color var(--t)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb span.sep{color:#C6C0B6}
.breadcrumb .current{color:var(--text-1);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-shell{max-width:820px;margin:0 auto}
.tag{
  display:inline-flex;align-items:center;gap:6px;background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.02em;padding:6px 14px;border-radius:999px;
}
.tag--accent{background:var(--accent-100);color:var(--accent-600)}
.article-title{
  font-size:36px;line-height:1.28;font-weight:700;letter-spacing:-.3px;margin:18px 0 0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;
  font-size:14px;color:var(--text-3);
}
.article-meta i{width:4px;height:4px;border-radius:50%;background:#C6C0B6;display:inline-block;font-style:normal}
.cover{margin:28px 0 0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.cover img{width:100%;height:380px;object-fit:cover;border-radius:var(--r-lg)}
.cover figcaption{font-size:13px;color:var(--text-3);text-align:center;padding:12px 8px 0}

.article-body{max-width:760px;margin:36px auto 0;font-size:17px;line-height:1.9;color:var(--text-2)}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;margin:2.2em 0 .9em;padding-left:16px;
  font-size:27px;line-height:1.35;font-weight:700;color:var(--text-1);letter-spacing:-.2px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;width:4px;height:1.05em;border-radius:999px;background:var(--grad)}
.article-body h3{margin:1.6em 0 .7em;font-size:21px;line-height:1.45;font-weight:600;color:var(--text-1)}
.article-body h4{margin:1.4em 0 .6em;font-size:17px;font-weight:600;color:var(--text-1)}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body a{color:var(--brand-700);border-bottom:1px dashed var(--brand-300);transition:border-color var(--t),color var(--t)}
.article-body a:hover{border-bottom-style:solid;color:var(--brand-600)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:2px}
.article-body ul li{position:relative;padding-left:24px;margin-bottom:.55em}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:50%;background:var(--brand-300)}
.article-body ol{counter-reset:item}
.article-body ol li{position:relative;padding-left:34px;margin-bottom:.55em;counter-increment:item}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.34em;width:22px;height:22px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:700;
  display:grid;place-items:center;line-height:1;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--brand-100);border-left:3px solid var(--brand-500);
  border-radius:0 16px 16px 0;color:var(--text-1);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:1.6em auto}
.article-body figure{margin:1.8em 0}
.article-body figure figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.2em 0}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.6em 0;font-size:15px;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;
}
.article-body th{background:var(--brand-100);color:var(--brand-700);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tr:last-child td{border-bottom:0}
.article-body tbody tr:nth-child(even) td{background:#FBFAF7}
.article-body pre{
  background:var(--bg-dark);color:#E4F6EF;border-radius:14px;padding:18px 20px;overflow-x:auto;
  font-size:14px;line-height:1.7;margin:1.6em 0;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
.article-body p code,.article-body li code{background:#EFF3F1;color:var(--brand-700);padding:2px 6px;border-radius:6px}

.empty{
  max-width:760px;margin:40px auto 0;padding:48px 28px;text-align:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);
}
.empty__icon{width:52px;height:52px;margin:0 auto 16px;border-radius:16px;background:var(--brand-100);display:grid;place-items:center}
.empty__icon svg{width:26px;height:26px;stroke:var(--brand-700)}
.empty h2{font-size:20px;font-weight:600;color:var(--text-1);margin-bottom:8px}
.empty p{font-size:15px;color:var(--text-2);margin-bottom:20px}

.post-foot{max-width:760px;margin:44px auto 0;padding-top:26px;border-top:1px solid var(--line)}
.post-foot__label{font-size:13px;color:var(--text-3);margin-bottom:10px}
.pill-row{display:flex;flex-wrap:wrap;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--text-2);font-size:13px;font-weight:500;
  transition:border-color var(--t),color var(--t),background var(--t),transform var(--t);
}
.pill:hover{border-color:var(--brand-500);color:var(--brand-700);background:#F1FAF6;transform:translateY(-1px)}
.pill svg{width:14px;height:14px;stroke:currentColor}

.related{max-width:1000px;margin:72px auto 0}
.related__head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.related__head h2{font-size:26px;font-weight:700;letter-spacing:-.2px;color:var(--text-1)}
.related__head p{font-size:14px;color:var(--text-3);margin-top:6px}
.related__list{display:grid;gap:16px}
.rel-card{
  display:grid;grid-template-columns:200px 1fr;gap:20px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:16px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.rel-card__thumb{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px}
.rel-card__body h3{font-size:17px;font-weight:600;color:var(--text-1);line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card__body p{font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700)}
.text-link svg{width:15px;height:15px;stroke:currentColor;transition:transform var(--t)}
.text-link:hover svg{transform:translateX(4px)}
.text-link:hover{text-decoration:underline}

.back-actions{max-width:1000px;margin:56px auto 0;display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t);
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-1)}
.btn--primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--primary:active{transform:scale(.98);box-shadow:var(--shadow-1)}
.btn--ghost{background:#fff;color:var(--brand-700);border:1.5px solid var(--line-strong)}
.btn--ghost:hover{border-color:var(--brand-500);background:#F1FAF6;transform:translateY(-1px)}
.btn svg{width:16px;height:16px;stroke:currentColor}

/* ---------- 页脚 ---------- */
.footer{background:var(--bg-dark);color:rgba(255,255,255,.72);padding:56px 40px 26px;margin-top:72px}
.footer__inner{max-width:1200px;margin:0 auto}
.footer__line{height:1px;background:var(--grad);opacity:.65;margin-bottom:40px}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer__brand .brand__mark{width:32px;height:32px;border-radius:10px}
.footer__brandname{font-size:17px;font-weight:600;color:#fff}
.footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:0}
.footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer a{display:block;font-size:14px;padding:5px 0;color:rgba(255,255,255,.72);transition:color var(--t),transform var(--t)}
.footer a:hover{color:#fff;transform:translateX(2px)}
.footer__bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}

@media(max-width:1279px){
  .article-title{font-size:32px}
}
@media(max-width:1023px){
  :root{--sidebar-w:0px}
  .sidebar{display:none}
  .topbar{display:flex}
  .content-area{margin-left:0;padding-top:64px}
  .container{padding:28px 22px 56px}
  .footer{padding:48px 22px 24px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .cover img{height:300px}
  .article-title{font-size:28px}
  .article-body{font-size:16px;margin-top:28px}
  .article-body h2{font-size:23px}
  .article-body h3{font-size:19px}
  .related{margin-top:56px}
}
@media(max-width:767px){
  .breadcrumb .current{max-width:200px}
  .cover img{height:220px}
  .article-title{font-size:26px}
  .rel-card{grid-template-columns:1fr;gap:14px}
  .rel-card__thumb{aspect-ratio:16/9}
  .footer__grid{grid-template-columns:1fr}
  .related__head{flex-direction:column;align-items:flex-start}
  .back-actions .btn{width:100%}
}
@media(max-width:520px){
  .container{padding:22px 16px 48px}
  .footer{padding:40px 16px 20px}
  .article-title{font-size:23px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}

/* roulang page: category1 */
:root{
  --brand-700:#0F6B55;
  --brand-600:#128A6C;
  --brand-500:#17A97F;
  --brand-300:#7ED9B8;
  --brand-100:#E4F6EF;
  --accent-500:#FF7A45;
  --accent-600:#E85F2B;
  --accent-100:#FFEDE4;
  --bg-page:#F5F3EE;
  --bg-card:#FFFFFF;
  --bg-dark:#0B1512;
  --line:#E9E5DD;
  --line-strong:#CFE7DE;
  --text-1:#12201C;
  --text-2:#4A5A55;
  --text-3:#7C8B86;
  --grad:linear-gradient(135deg,#128A6C 0%,#17A97F 48%,#7ED9B8 100%);
  --shadow-1:0 1px 2px rgba(18,32,28,.06),0 8px 24px rgba(18,32,28,.06);
  --shadow-2:0 18px 48px rgba(15,107,85,.14);
  --r-badge:999px;
  --r-btn:14px;
  --r-sm:20px;
  --r-card:24px;
  --r-lg:32px;
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --sidebar:264px;
  --font: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.2em}
::selection{background:var(--brand-100);color:var(--brand-700)}

/* ---------- 左侧栏 ---------- */
.sidebar{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--sidebar);
  height:100vh;
  background:var(--bg-card);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:20px 16px 18px;
  overflow-y:auto;
  z-index:40;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  height:88px;
  padding:0 8px;
  text-decoration:none;
  flex:0 0 auto;
}
.brand__mark{
  width:36px;height:36px;flex:0 0 36px;
  border-radius:12px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  color:#fff;
  box-shadow:0 6px 16px rgba(18,138,108,.28);
}
.brand__mark svg{width:20px;height:20px}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:18px;font-weight:600;color:var(--text-1);letter-spacing:-.2px}
.brand__sub{font-size:11px;color:var(--text-3);letter-spacing:.04em;margin-top:3px}

.nav{display:flex;flex-direction:column;gap:6px;margin-top:8px}
.nav__item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-btn);
  color:var(--text-2);
  font-size:15px;
  font-weight:500;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav__item svg{width:18px;height:18px;flex:0 0 18px;transition:transform var(--ease)}
.nav__item:hover{background:var(--brand-100);color:var(--brand-700);transform:translateX(-2px)}
.nav__item:hover svg{transform:translateX(2px)}
.nav__item.is-active{
  background:var(--grad);
  color:#fff;
  font-weight:600;
  box-shadow:0 10px 22px rgba(18,138,108,.24);
}
.nav__item.is-active::before{
  content:"";
  position:absolute;left:-8px;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:3px;background:var(--brand-600);
}
.sidebar__spacer{flex:1 1 auto;min-height:24px}
.sidebar__cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:46px;border-radius:var(--r-btn);
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 24px rgba(18,138,108,.24);
  transition:transform var(--ease),box-shadow var(--ease);
}
.sidebar__cta:hover{transform:translateY(-1px);box-shadow:var(--shadow-2)}
.sidebar__cta:active{transform:scale(.98)}
.sidebar__legal{
  margin-top:14px;
  font-size:11px;line-height:1.6;color:var(--text-3);text-align:center;
  word-break:break-all;
}
.sidebar__tips{
  margin:18px 4px 0;
  padding:14px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-sm);
  background:#F7FCFA;
}
.sidebar__tips strong{display:block;font-size:12px;color:var(--brand-700);font-weight:600;letter-spacing:.02em}
.sidebar__tips span{display:block;font-size:12px;color:var(--text-2);margin-top:4px;line-height:1.7}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:64px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:50;
}
.topbar__brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.topbar__mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.topbar__mark svg{width:17px;height:17px}
.topbar__name{font-size:17px;font-weight:600;color:var(--text-1)}
.burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--bg-card);display:flex;align-items:center;justify-content:center;
  cursor:pointer;color:var(--text-1);transition:border-color var(--ease),background var(--ease);
}
.burger:hover{border-color:var(--line-strong);background:var(--brand-100)}
.burger svg{width:20px;height:20px}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(11,21,18,.48);z-index:60;
}
.drawer-mask.is-open{display:block}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:80vw;max-width:340px;
  background:var(--bg-card);
  z-index:70;
  transform:translateX(100%);
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;
  padding:20px 16px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer__title{font-size:15px;font-weight:600;color:var(--text-1)}
.drawer__close{
  width:38px;height:38px;border-radius:11px;border:1px solid var(--line);
  background:var(--bg-card);cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-2);
}
.drawer__close svg{width:18px;height:18px}
.drawer__cta{
  margin-top:auto;padding-top:20px;
}
.drawer__cta a{
  display:flex;align-items:center;justify-content:center;height:46px;border-radius:var(--r-btn);
  background:var(--grad);color:#fff;font-weight:600;font-size:15px;
}
body.no-scroll{overflow:hidden}

/* ---------- 内容区 ---------- */
.content{
  margin-left:var(--sidebar);
  padding:0 40px 0;
  max-width:1200px;
}
.content__inner{max-width:1120px;margin:0 auto}

/* 面包屑 */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-3);
  padding:26px 0 0;
}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand-700)}
.crumb span.sep{color:var(--line-strong)}
.crumb .current{color:var(--text-1)}

/* Banner */
.banner{
  position:relative;
  margin-top:22px;
  border-radius:var(--r-lg);
  overflow:hidden;
  min-height:330px;
  display:flex;
  align-items:center;
  padding:44px 48px;
  color:#fff;
  background-image:var(--grad);
  box-shadow:var(--shadow-1);
}
.banner__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.9;
}
.banner__veil{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(11,21,18,.86) 0%,rgba(15,107,85,.78) 46%,rgba(23,169,127,.42) 100%);
}
.banner__inner{position:relative;z-index:2;display:flex;gap:44px;align-items:center;width:100%;justify-content:space-between}
.banner__copy{max-width:620px}
.banner__tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-badge);
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  backdrop-filter:blur(2px);
}
.banner h1{
  font-size:42px;line-height:1.22;font-weight:700;letter-spacing:-.4px;
  margin-top:18px;
}
.banner p{
  margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.88);max-width:560px;
}
.banner__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:none;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(18,138,108,.26)}
.btn--primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--primary:active{transform:scale(.98)}
.btn--ghost{background:#fff;color:var(--brand-700);border:1.5px solid var(--line-strong)}
.btn--ghost:hover{border-color:var(--brand-500);background:#F1FAF6}
.btn--link{
  background:none;color:#fff;padding:0 4px;height:auto;
  border-bottom:1px solid transparent;
}
.btn--link:hover{border-bottom-color:#fff}
.btn--link svg{width:16px;height:16px;transition:transform var(--ease)}
.btn--link:hover svg{transform:translateX(4px)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--brand-500);outline-offset:2px;
}
.float-card{
  flex:0 0 232px;
  background:var(--bg-card);
  color:var(--text-1);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--shadow-2);
  transform:translateY(16px);
}
.float-card__num{
  font-size:30px;font-weight:700;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.float-card__label{font-size:13px;color:var(--text-2);margin-top:8px;line-height:1.7}
.float-card__divider{height:1px;background:var(--line);margin:16px 0}
.float-card__row{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-3)}
.float-card__dot{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;
}
.float-card__dot i{width:7px;height:7px;border-radius:50%;background:var(--brand-500);display:inline-block}

/* 通用板块 */
.section{margin-top:88px}
.section--tight{margin-top:64px}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--brand-700);
  padding:6px 12px;border-radius:var(--r-badge);background:var(--brand-100);
}
.section h2{
  font-size:30px;line-height:1.32;font-weight:700;letter-spacing:-.3px;margin-top:14px;
}
.section__desc{color:var(--text-2);font-size:16px;margin-top:12px;max-width:760px}

/* 导语卡 */
.intro-card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:28px;
  padding:34px;
  box-shadow:var(--shadow-1);
  margin-top:-28px;
  position:relative;
  z-index:3;
}
.intro-card__grid{display:grid;grid-template-columns:1.35fr 1fr;gap:38px}
.intro-card h2{font-size:22px;font-weight:600;margin:0 0 12px}
.intro-card p{color:var(--text-2);font-size:16px;line-height:1.9}
.intro-card p + p{margin-top:14px}
.intro-badges{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:start}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:var(--r-badge);
  background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.pill svg{width:15px;height:15px;flex:0 0 15px}
.pill--accent{background:var(--accent-100);color:var(--accent-600)}
.pill--line{background:#fff;border:1px solid var(--line-strong);color:var(--text-2)}

/* 双栏：锚点目录 + 长文 */
.docs{display:grid;grid-template-columns:232px minmax(0,1fr);gap:48px;margin-top:56px;align-items:start}
.anchor{
  position:sticky;top:28px;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px 18px;
  box-shadow:var(--shadow-1);
}
.anchor__title{font-size:12px;font-weight:600;color:var(--text-3);letter-spacing:.08em;margin-bottom:12px}
.anchor__list{list-style:none;padding:0;display:flex;flex-direction:column;gap:2px}
.anchor__list a{
  display:block;font-size:14px;color:var(--text-2);padding:9px 12px;border-radius:11px;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.anchor__list a:hover{background:var(--brand-100);color:var(--brand-700);transform:translateX(2px)}
.anchor__note{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:12px;color:var(--text-3);line-height:1.7;
}
.doc-body{max-width:760px}
.doc-block + .doc-block{margin-top:56px}
.doc-block h2{
  font-size:26px;font-weight:700;line-height:1.35;letter-spacing:-.3px;
  padding-left:14px;border-left:4px solid var(--brand-500);
}
.doc-block h3{font-size:19px;font-weight:600;margin-top:28px}
.doc-block p{color:var(--text-2);margin-top:14px;font-size:16.5px;line-height:1.9}
.doc-block ul,.doc-block ol{color:var(--text-2);margin-top:14px;font-size:16.5px;line-height:1.9}
.doc-block li + li{margin-top:8px}
.doc-block li::marker{color:var(--brand-500);font-weight:700}
.callout{
  margin-top:22px;border-radius:var(--r-sm);border:1px solid var(--line-strong);
  background:#F7FCFA;padding:20px 22px;
}
.callout strong{display:block;font-size:14px;color:var(--brand-700);font-weight:600}
.callout p{margin-top:8px;font-size:15px;color:var(--text-2)}
.doc-figure{margin-top:26px}
.doc-figure img{
  width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);
  background:var(--grad);
}
.doc-figure figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}

/* 步骤条 */
.steps{
  margin-top:34px;
  display:grid;grid-template-columns:repeat(5,1fr);gap:0;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px;box-shadow:var(--shadow-1);
}
.step{position:relative;padding:0 14px}
.step__dot{
  width:40px;height:40px;border-radius:50%;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
  position:relative;z-index:2;
  box-shadow:0 8px 18px rgba(18,138,108,.26);
}
.step__line{
  position:absolute;left:calc(50% + 26px);right:calc(-50% + 26px);top:19px;
  height:2px;background:var(--line-strong);z-index:1;
}
.step:last-child .step__line{display:none}
.step h4{font-size:15px;font-weight:600;margin-top:14px;line-height:1.5}
.step p{font-size:13px;color:var(--text-3);line-height:1.75;margin-top:6px}

/* 对照表 */
.table-wrap{margin-top:24px;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--bg-card)}
table{width:100%;border-collapse:collapse;font-size:15px}
thead th{
  background:#F7FCFA;color:var(--brand-700);font-weight:600;font-size:13px;letter-spacing:.03em;
  text-align:left;padding:14px 20px;border-bottom:1px solid var(--line);
}
tbody td{padding:15px 20px;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:top}
tbody tr:nth-child(even){background:#FBFBF8}
tbody tr:last-child td{border-bottom:none}
tbody td:first-child{color:var(--text-1);font-weight:600}

/* FAQ */
.faq{margin-top:34px;display:flex;flex-direction:column;gap:12px;max-width:860px}
.faq details{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:0 22px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq details[open]{border-color:var(--line-strong);box-shadow:var(--shadow-1)}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-size:16px;font-weight:600;color:var(--text-1);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .plus{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq details[open] summary .plus{transform:rotate(45deg);background:var(--brand-100)}
.faq__answer{padding:0 0 20px;font-size:15px;color:var(--text-2);line-height:1.85;border-top:1px dashed var(--line);padding-top:16px}

/* CTA */
.cta{
  margin-top:88px;
  border-radius:var(--r-lg);
  background:var(--grad);
  color:#fff;
  padding:46px 48px;
  display:grid;grid-template-columns:1.15fr 1fr;gap:44px;align-items:center;
  box-shadow:var(--shadow-2);
  position:relative;overflow:hidden;
}
.cta::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta h2{font-size:28px;font-weight:700;line-height:1.35;position:relative;z-index:2}
.cta p{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.9);position:relative;z-index:2}
.cta-form{position:relative;z-index:2;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);border-radius:var(--r-card);padding:22px}
.cta-form label{display:block;font-size:13px;font-weight:600;letter-spacing:.02em;margin-bottom:10px}
.cta-form__row{display:flex;gap:10px}
.cta-form input{
  flex:1 1 auto;height:44px;border-radius:14px;border:1px solid transparent;
  background:#fff;color:var(--text-1);padding:0 16px;font-size:15px;
  transition:box-shadow var(--ease);
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{outline:none;box-shadow:0 0 0 2px #fff,0 0 0 4px var(--brand-600)}
.cta-form button{
  height:44px;padding:0 22px;border-radius:14px;border:none;cursor:pointer;
  background:#0B1512;color:#fff;font-size:15px;font-weight:600;
  transition:transform var(--ease),background var(--ease);
  white-space:nowrap;
}
.cta-form button:hover{background:#123024;transform:translateY(-1px)}
.cta-form button:active{transform:scale(.98)}
.cta-form__note{font-size:12px;color:rgba(255,255,255,.78);margin-top:12px;line-height:1.7}

/* 相关文章 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:34px}
.card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--grad)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1)}
.card:hover .card__media img{transform:scale(1.04)}
.card__badge{
  position:absolute;left:12px;top:12px;
  background:var(--accent-500);color:#fff;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:5px 12px;border-radius:var(--r-badge);
}
.card__body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.card__body h3{font-size:17px;font-weight:600;line-height:1.5}
.card__body p{font-size:14.5px;color:var(--text-2);margin-top:10px;line-height:1.8}
.card__meta{
  margin-top:auto;padding-top:16px;
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.card__meta .go{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600}
.card__meta .go svg{width:15px;height:15px;transition:transform var(--ease)}
.card:hover .card__meta .go svg{transform:translateX(3px)}

/* 页脚 */
.footer{
  margin-left:var(--sidebar);
  margin-top:96px;
  background:var(--bg-dark);
  color:rgba(255,255,255,.72);
  position:relative;
}
.footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad);
}
.footer__inner{max-width:1200px;padding:56px 40px 26px;margin:0 auto}
.footer__grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;gap:0;
}
.footer__col{padding:0 28px;border-left:1px solid rgba(255,255,255,.1)}
.footer__col:first-child{padding-left:0;border-left:none}
.footer__col h4{font-size:13px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer__brand .brand__mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px}
.footer__brand span{font-size:17px;font-weight:600;color:#fff}
.footer__col p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer__list{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}
.footer__list a{
  font-size:14px;color:rgba(255,255,255,.72);
  transition:color var(--ease),transform var(--ease);
  display:inline-block;
}
.footer__list a:hover{color:#fff;transform:translateX(2px)}
.footer__bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer__bottom a{color:rgba(255,255,255,.6)}
.footer__bottom a:hover{color:#fff}

/* 响应式 */
@media (max-width:1279px){
  :root{--sidebar:232px}
  .content{padding:0 28px}
  .footer__inner{padding:52px 28px 24px}
  .cta{padding:40px 34px;gap:32px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .content{margin-left:0;padding:64px 20px 0;max-width:none}
  .footer{margin-left:0;margin-top:64px}
  .footer__inner{padding:44px 20px 22px}
  .banner{padding:34px 26px;min-height:280px}
  .banner h1{font-size:32px}
  .banner__inner{flex-direction:column;align-items:flex-start;gap:26px}
  .float-card{flex:0 0 auto;width:100%;max-width:300px;transform:none}
  .intro-card{margin-top:24px;padding:26px}
  .intro-card__grid{grid-template-columns:1fr;gap:26px}
  .docs{grid-template-columns:1fr;gap:32px}
  .anchor{position:static}
  .steps{grid-template-columns:1fr;gap:24px;padding:26px 22px}
  .step{padding:0}
  .step__line{display:none}
  .section{margin-top:64px}
  .cta{grid-template-columns:1fr;padding:34px 26px;margin-top:64px}
  .rel-grid{grid-template-columns:1fr 1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer__col{padding:0;border-left:none}
}
@media (max-width:767px){
  .section{margin-top:56px}
  .banner h1{font-size:28px;line-height:1.3}
  .section h2{font-size:23px}
  .doc-block h2{font-size:22px}
  .doc-block p,.doc-block ul,.doc-block ol{font-size:16px}
  .rel-grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .cta h2{font-size:23px}
  .cta-form__row{flex-direction:column}
  .cta-form button{width:100%}
  .btn{width:100%}
  .banner__actions{width:100%}
  .table-wrap{overflow-x:auto}
  table{min-width:520px}
}

/* roulang page: category2 */
:root{
  --brand-700:#0F6B55;
  --brand-600:#128A6C;
  --brand-500:#17A97F;
  --brand-300:#7ED9B8;
  --brand-100:#E4F6EF;
  --accent-500:#FF7A45;
  --accent-600:#E85F2B;
  --accent-100:#FFEDE4;
  --bg-page:#F5F3EE;
  --bg-card:#FFFFFF;
  --bg-dark:#0B1512;
  --line:#E9E5DD;
  --line-strong:#CFE7DE;
  --text-1:#12201C;
  --text-2:#4A5A55;
  --text-3:#7C8B86;
  --grad:linear-gradient(135deg,#128A6C 0%,#17A97F 48%,#7ED9B8 100%);
  --shadow-1:0 1px 2px rgba(18,32,28,.06),0 8px 24px rgba(18,32,28,.06);
  --shadow-2:0 18px 48px rgba(15,107,85,.14);
  --r-btn:14px;
  --r-sm:20px;
  --r-card:24px;
  --r-lg:28px;
  --r-xl:32px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:264px;
}
@media (min-width:1280px){:root{--sidebar-w:272px;}}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-700);text-decoration:none;border-bottom:1px dashed rgba(15,107,85,.45);transition:color .22s var(--ease),border-color .22s var(--ease);}
a:hover{color:var(--brand-600);border-bottom-style:solid;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.skip{
  position:absolute;left:-9999px;top:0;z-index:200;background:var(--bg-card);
  padding:12px 20px;border-radius:var(--r-btn);box-shadow:var(--shadow-1);border-bottom:0;
}
.skip:focus{left:16px;top:16px;}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:#FCFAF6;
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 20px;
  overflow-y:auto;
  z-index:60;
}
.brand{
  display:flex;align-items:center;gap:10px;
  height:88px;padding:0 8px;
  border-bottom:1px solid var(--line);
  margin-bottom:18px;
  border-bottom-width:1px;
  flex:0 0 auto;
}
.brand__mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;
  color:#fff;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(15,107,85,.26);
}
.brand__mark svg{width:20px;height:20px;}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__name{font-size:18px;font-weight:600;color:var(--text-1);letter-spacing:-.2px;}
.brand__sub{font-size:11px;color:var(--text-3);font-weight:500;letter-spacing:.06em;margin-top:3px;}
.nav{display:flex;flex-direction:column;gap:6px;flex:0 0 auto;}
.nav__item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:48px;padding:0 16px;
  border-radius:var(--r-btn);
  color:var(--text-2);font-size:15px;font-weight:500;
  border-bottom:0;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.nav__item svg{width:18px;height:18px;flex:0 0 auto;transition:transform .22s var(--ease);}
.nav__item:hover{background:var(--brand-100);color:var(--brand-700);transform:translateX(-2px);border-bottom:0;}
.nav__item:hover svg{transform:translateX(2px);}
.nav__item.is-active{
  background:var(--grad);color:#fff;
  box-shadow:0 10px 22px rgba(15,107,85,.22);
}
.nav__item.is-active::before{
  content:"";position:absolute;left:6px;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:3px;background:#fff;
}
.sidebar__spacer{flex:1 1 auto;min-height:28px;}
.sidebar__cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:46px;border-radius:var(--r-btn);
  background:var(--bg-dark);color:#fff;font-size:14px;font-weight:600;
  border-bottom:0;transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.sidebar__cta:hover{background:#12241F;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);border-bottom:0;}
.sidebar__cta svg{width:16px;height:16px;}
.sidebar__legal{font-size:11px;color:var(--text-3);line-height:1.6;margin-top:14px;padding:0 4px;}

/* ============ 顶部条（移动端） ============ */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  background:rgba(252,250,246,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
  padding:0 16px;
}
.topbar .brand{height:auto;border-bottom:0;margin:0;padding:0;}
.topbar .brand__mark{width:32px;height:32px;border-radius:10px;}
.topbar .brand__name{font-size:16px;}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  background:#fff;display:grid;place-items:center;gap:0;
}
.burger span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;margin:2px 0;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:80vw;max-width:340px;
  background:#FCFAF6;z-index:90;
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  padding:22px 18px;
  display:flex;flex-direction:column;gap:6px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer__title{font-size:15px;font-weight:600;color:var(--text-1);}
.drawer__close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;font-size:18px;color:var(--text-2);}
.drawer .nav__item{height:52px;}
.overlay{
  position:fixed;inset:0;background:rgba(11,21,18,.48);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);z-index:80;
}
.overlay.is-open{opacity:1;visibility:visible;}
body.is-locked{overflow:hidden;}

/* ============ 内容区 ============ */
.content{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}
main{flex:1 1 auto;}
.section{padding:44px 0;}
.section--tight{padding:36px 0;}

/* ============ Banner ============ */
.banner{
  position:relative;
  min-height:340px;
  display:flex;align-items:center;
  background-image:linear-gradient(112deg,rgba(11,21,18,.88) 8%,rgba(15,107,85,.74) 62%,rgba(23,169,127,.56) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-radius:0 0 var(--r-xl) var(--r-xl);
  overflow:hidden;
}
.banner::after{
  content:"";position:absolute;right:-60px;top:-70px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(126,217,184,.35),rgba(126,217,184,0) 68%);
  pointer-events:none;
}
.banner__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:40px;align-items:center;width:100%;
  padding-top:52px;padding-bottom:52px;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:18px;flex-wrap:wrap;}
.crumbs a{color:rgba(255,255,255,.72);border-bottom:0;}
.crumbs a:hover{color:#fff;}
.crumbs span[aria-current]{color:#fff;}
.crumbs .sep{color:rgba(255,255,255,.42);}
.banner h1{
  color:#fff;font-size:44px;line-height:1.2;font-weight:700;letter-spacing:-.4px;
}
.banner__lead{
  margin-top:16px;color:rgba(255,255,255,.82);font-size:17px;line-height:1.8;max-width:560px;
}
.banner__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag-on-dark{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:rgba(255,255,255,.14);color:#EAF7F2;border:1px solid rgba(255,255,255,.22);
}
.banner__card{
  background:#fff;border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-2);
  border:1px solid rgba(255,255,255,.6);
}
.banner__card h2{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:14px;}
.mini-stat{display:flex;align-items:baseline;gap:10px;padding:10px 0;border-top:1px dashed var(--line);}
.mini-stat:first-of-type{border-top:0;padding-top:0;}
.mini-stat b{
  font-size:26px;font-weight:700;line-height:1.1;letter-spacing:-.5px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.mini-stat span{font-size:13px;color:var(--text-2);}

/* ============ 导语卡 ============ */
.intro-card{
  background:var(--bg-card);border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  padding:36px;margin-top:-46px;position:relative;z-index:5;
}
.intro-card h2{font-size:19px;font-weight:600;margin-bottom:14px;letter-spacing:-.2px;}
.intro-card p{color:var(--text-2);font-size:16px;}
.intro-card p + p{margin-top:14px;}
.intro-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-100);color:var(--brand-700);
  padding:7px 14px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge--accent{background:var(--accent-100);color:var(--accent-600);}
.badge svg{width:14px;height:14px;}

/* ============ 通用标题 ============ */
.sec-head{max-width:720px;margin-bottom:30px;}
.sec-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.3px;}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:16px;}

/* ============ 图文交替 ============ */
.alt-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:44px;align-items:center;
}
.alt-row + .alt-row{margin-top:56px;}
.alt-row--rev .alt-media{order:2;}
.alt-media{position:relative;}
.alt-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--grad);
}
.alt-media__float{
  position:absolute;right:-14px;bottom:-20px;
  background:#fff;border-radius:var(--r-sm);padding:14px 18px;box-shadow:var(--shadow-2);
  border:1px solid var(--line);min-width:170px;
}
.alt-media__float b{display:block;font-size:22px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.alt-media__float span{font-size:12.5px;color:var(--text-2);}
.alt-body h3{font-size:22px;font-weight:600;letter-spacing:-.2px;margin-bottom:14px;}
.alt-body p{color:var(--text-2);font-size:16px;}
.alt-body p + p{margin-top:12px;}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.check-list li svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;color:var(--brand-500);}
.check-list li b{color:var(--text-1);font-weight:600;}

/* ============ 对照表 ============ */
.compare-wrap{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.compare-head{padding:26px 30px 8px;}
.compare-head h2{font-size:26px;font-weight:700;letter-spacing:-.3px;}
.compare-head p{margin-top:10px;color:var(--text-2);font-size:15px;}
.table-scroll{overflow-x:auto;padding:14px 30px 30px;}
table.compare{width:100%;border-collapse:separate;border-spacing:0;min-width:640px;font-size:15px;}
table.compare th,table.compare td{text-align:left;padding:15px 16px;border-bottom:1px solid var(--line);}
table.compare thead th{
  background:#F2FAF6;color:var(--brand-700);font-weight:600;font-size:14px;
}
table.compare thead th:first-child{border-radius:12px 0 0 0;}
table.compare thead th:last-child{border-radius:0 12px 0 0;}
table.compare tbody tr:nth-child(even) td{background:#FBFAF7;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td:first-child{font-weight:600;color:var(--text-1);}
.cell-ok{color:var(--brand-700);}
.cell-no{color:var(--accent-600);}

/* ============ 要点回顾 ============ */
.recap-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.recap-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.recap-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.recap-card__no{
  width:40px;height:40px;border-radius:999px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:700;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.recap-card h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.recap-card p{color:var(--text-2);font-size:15px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 26px;text-align:left;font-size:16.5px;font-weight:600;color:var(--text-1);
}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{
  width:28px;height:28px;flex:0 0 auto;border-radius:9px;
  background:var(--brand-100);color:var(--brand-700);
  display:grid;place-items:center;font-size:16px;line-height:1;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-700);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a p{padding:0 26px 22px;color:var(--text-2);font-size:15px;line-height:1.85;}

/* ============ 相关卡片 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rcard{
  display:flex;flex-direction:column;background:var(--bg-card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);border-bottom:1px solid var(--line);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.rcard__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--grad);}
.rcard__media img{width:100%;height:100%;object-fit:cover;}
.rcard__corner{
  position:absolute;left:14px;top:14px;
  background:var(--accent-500);color:#fff;font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:5px 12px;border-radius:999px;
}
.rcard__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.rcard__body h3{font-size:17.5px;font-weight:600;line-height:1.5;color:var(--text-1);}
.rcard__body p{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.rcard__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);padding-top:12px;border-top:1px dashed var(--line);}
.rcard__meta span.arrow{color:var(--brand-700);font-weight:600;transition:transform .22s var(--ease);}
.rcard:hover .rcard__meta span.arrow{transform:translateX(4px);}

/* ============ CTA ============ */
.cta-block{
  background:var(--grad);border-radius:var(--r-xl);
  padding:44px;color:#fff;position:relative;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:36px;align-items:center;box-shadow:var(--shadow-2);
}
.cta-block::after{
  content:"";position:absolute;right:-80px;bottom:-100px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.28),rgba(255,255,255,0) 70%);
}
.cta-block h2{font-size:28px;font-weight:700;line-height:1.35;letter-spacing:-.3px;}
.cta-block p{margin-top:14px;color:rgba(255,255,255,.86);font-size:16px;max-width:520px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;letter-spacing:.01em;
  border-bottom:0;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
}
.btn svg{width:17px;height:17px;transition:transform .22s var(--ease);}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(15,107,85,.24);}
.btn--primary:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn--primary:active{transform:scale(.98);box-shadow:none;}
.btn--light{background:#fff;color:var(--brand-700);border-bottom:0;width:100%;}
.btn--light:hover{color:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn--ghost{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.5);width:100%;}
.btn--ghost:hover{background:rgba(255,255,255,.2);color:#fff;}
.btn--outline{background:#fff;color:var(--brand-700);border:1.5px solid var(--line-strong);}
.btn--outline:hover{border-color:var(--brand-500);background:#F1FAF6;color:var(--brand-700);transform:translateY(-1px);}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;font-size:15px;
  border-bottom:0;justify-content:center;
}
.text-link svg{width:16px;height:16px;transition:transform .22s var(--ease);}
.text-link:hover{color:#fff;border-bottom:0;}
.text-link:hover svg{transform:translateX(4px);}

/* ============ 页脚 ============ */
.footer{
  background:var(--bg-dark);color:rgba(255,255,255,.72);
  margin-top:56px;position:relative;
}
.footer::before{content:"";display:block;height:1px;background:var(--grad);opacity:.9;}
.footer__inner{padding:60px 0 34px;}
.footer__grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;
  gap:34px;
}
.footer__col + .footer__col{border-left:1px solid rgba(255,255,255,.1);padding-left:34px;}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer__brand .brand__mark{width:32px;height:32px;border-radius:10px;box-shadow:none;}
.footer__brand strong{color:#fff;font-size:17px;font-weight:600;}
.footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);}
.footer h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer__links{display:flex;flex-direction:column;gap:10px;}
.footer__links a{
  color:rgba(255,255,255,.72);font-size:14px;border-bottom:0;
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer__links a:hover{color:#fff;transform:translateX(2px);border-bottom:0;}
.footer__bottom{
  margin-top:38px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .banner h1{font-size:38px;}
  .container{padding:0 32px;}
  .alt-row{gap:32px;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .topbar{display:flex;}
  .content{margin-left:0;padding-top:64px;}
  .banner{border-radius:0 0 var(--r-card) var(--r-card);min-height:300px;}
  .banner__inner{grid-template-columns:1fr;gap:24px;padding-top:40px;padding-bottom:40px;}
  .banner__card{max-width:420px;}
  .banner h1{font-size:34px;}
  .intro-card{margin-top:0;}
  .section{padding:36px 0;}
  .alt-row{grid-template-columns:1fr;gap:26px;}
  .alt-row--rev .alt-media{order:0;}
  .alt-row + .alt-row{margin-top:40px;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .cta-block{grid-template-columns:1fr;padding:34px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer__col + .footer__col{border-left:0;padding-left:0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .banner h1{font-size:29px;}
  .banner__lead{font-size:15.5px;}
  .intro-card{padding:24px;border-radius:var(--r-card);}
  .sec-head h2{font-size:23px;}
  .alt-body h3{font-size:20px;}
  .compare-head{padding:22px 20px 6px;}
  .table-scroll{padding:12px 20px 24px;}
  .recap-grid{grid-template-columns:1fr;gap:16px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-block{padding:28px 22px;border-radius:var(--r-card);}
  .cta-block h2{font-size:22px;}
  .btn{width:100%;}
  .alt-media__float{right:10px;bottom:-16px;}
  .footer__inner{padding:44px 0 26px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:520px){
  .banner h1{font-size:26px;letter-spacing:-.2px;}
  .faq-q{font-size:15.5px;padding:18px 20px;}
  .faq-a p{padding:0 20px 20px;}
  .intro-badges{gap:8px;}
  .badge{font-size:12px;padding:6px 11px;}
}