/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --ink:#2A1B4E;
  --ink-2:#241745;
  --ink-3:#1F1340;
  --ink-deep:#191033;
  --cyan:#2FD3C4;
  --cyan-deep:#1F9E92;
  --cyan-soft:rgba(47,211,196,.12);
  --orange:#FF8A5B;
  --orange-soft:rgba(255,138,91,.12);
  --sand:#F6F3EE;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --line-soft:#EFEBE4;
  --text:#1C1730;
  --text-2:#5B5470;
  --text-3:#8E88A0;
  --ok:#1F9E92;
  --warn:#E8A33D;
  --err:#D9503F;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(42,27,78,.06);
  --sh-2:0 12px 32px -12px rgba(42,27,78,.18);
  --sh-3:0 18px 44px -16px rgba(42,27,78,.30);
  --sidebar-w:240px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --cjk:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ================= Reset / 基础 ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--cjk);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
strong{font-weight:700}
:focus-visible{outline:3px solid var(--cyan);outline-offset:2px;border-radius:6px}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--cyan);color:var(--ink-deep);padding:10px 16px;border-radius:0 0 10px 0;font-weight:700;
}
.skip-link:focus{left:0}

/* ================= 侧栏导航 ================= */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--ink);color:#EDE9F7;z-index:120;
  border-right:1px solid rgba(255,255,255,.07);
  display:flex;flex-direction:column;
  overflow-y:auto;
  transition:transform .28s ease;
}
.sidebar::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.4) 1px,transparent 1px);
  background-size:32px 32px;opacity:.05;
}
.sidebar-inner{position:relative;z-index:2;display:flex;flex-direction:column;min-height:100%;padding:26px 20px 22px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(150deg,var(--cyan),#1B7C74);
  color:var(--ink-deep);font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:16px;font-weight:700;color:#fff;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:12.5px;color:var(--cyan);letter-spacing:.16em}
.nav{margin-top:34px;display:flex;flex-direction:column;gap:6px}
.nav-title{
  font-size:11.5px;letter-spacing:.2em;color:rgba(237,233,247,.42);
  padding:0 12px 10px;font-family:var(--mono);
}
.nav-item{
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:10px;
  color:rgba(237,233,247,.82);font-size:14.5px;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-item:hover{background:rgba(47,211,196,.12);color:#fff;transform:translateX(2px)}
.nav-item.is-active{background:rgba(47,211,196,.16);color:#fff;font-weight:600;border-color:rgba(47,211,196,.4)}
.nav-ico{flex:0 0 18px;width:18px;height:18px;color:var(--cyan)}
.nav-ico svg{width:18px;height:18px;display:block}
.nav-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-foot{margin-top:auto;padding-top:26px}
.side-cta{
  display:block;text-align:center;background:var(--cyan);color:var(--ink-deep);
  font-weight:700;font-size:14.5px;padding:12px 14px;border-radius:var(--r-btn);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.side-cta:hover{background:#4AE1D2;transform:translateY(-1px);box-shadow:0 10px 24px -10px rgba(47,211,196,.7)}
.side-cta:active{transform:translateY(0)}
.side-meta{margin-top:16px;font-size:12.5px;line-height:1.8;color:rgba(237,233,247,.5);font-family:var(--mono)}

/* ================= 页面容器 ================= */
.page{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
main{flex:1}

/* ================= 移动端顶栏 ================= */
.mobilebar{
  display:none;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 18px;background:var(--ink);color:#fff;
  position:sticky;top:0;z-index:100;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.mobilebar .brand-mark{width:34px;height:34px;flex-basis:34px;border-radius:10px;font-size:16px}
.mobilebar .brand-text strong{font-size:15px}
.mobilebar .brand-text em{font-size:11px}
.menu-btn{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;
  width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s ease;
}
.menu-btn:hover{background:rgba(47,211,196,.2)}
.backdrop{
  position:fixed;inset:0;background:rgba(25,16,51,.6);z-index:110;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.backdrop.show{opacity:1;pointer-events:auto}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--cyan);color:var(--ink-deep);box-shadow:0 10px 26px -14px rgba(47,211,196,.9)}
.btn-primary:hover{background:#4AE1D2;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--text)}
.btn-outline:hover{background:var(--cyan-soft);border-color:var(--cyan);color:var(--cyan-deep)}
.btn-light{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-light:hover{background:rgba(47,211,196,.16);border-color:var(--cyan);color:#fff}
.btn-ghost{background:transparent;color:#fff;border-color:transparent;text-decoration:underline;text-underline-offset:5px;text-decoration-color:rgba(255,255,255,.5)}
.btn-ghost:hover{color:var(--orange);text-decoration-color:var(--orange)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none}

/* ================= 徽章 / 标签 ================= */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid rgba(255,138,91,.5);background:var(--orange-soft);color:#C4562B;
}
.badge-cyan{border-color:rgba(47,211,196,.5);background:var(--cyan-soft);color:var(--cyan-deep)}

/* ================= Hero ================= */
.hero{
  position:relative;background:var(--ink-deep);color:#fff;overflow:hidden;
  padding:104px 0 96px;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(25,16,51,.96) 0%,rgba(25,16,51,.88) 46%,rgba(25,16,51,.72) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-grid-deco{
  position:absolute;inset:0;pointer-events:none;opacity:.24;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:36px 36px;
}
.hero .container{position:relative;z-index:3}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:64px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:22px;
}
.eyebrow::before{content:"";width:34px;height:1px;background:rgba(47,211,196,.7)}
.hero h1{
  font-size:clamp(2.2rem,4.4vw,3.4rem);
  line-height:1.16;font-weight:700;letter-spacing:-.02em;color:#fff;
}
.hero-sub{margin-top:24px;font-size:17px;line-height:1.9;color:rgba(237,233,247,.78);max-width:620px}
.hero-actions{margin-top:36px;display:flex;flex-wrap:wrap;gap:14px}
.hero-note{
  margin-top:26px;font-family:var(--mono);font-size:12.5px;color:rgba(237,233,247,.55);letter-spacing:.02em;
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:18px;border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--sh-3);
}
.hero-media::before{
  content:"";position:absolute;inset:-16px -16px auto auto;width:96px;height:96px;
  border-top:1px solid rgba(47,211,196,.55);border-right:1px solid rgba(47,211,196,.55);
  border-top-right-radius:20px;
}
.hero-media::after{
  content:"";position:absolute;left:-16px;bottom:-16px;width:96px;height:96px;
  border-bottom:1px solid rgba(47,211,196,.55);border-left:1px solid rgba(47,211,196,.55);
  border-bottom-left-radius:20px;
}

/* ================= 数据条 ================= */
.stats{background:var(--ink-2);color:#fff;padding:38px 0;border-top:1px solid rgba(255,255,255,.07)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{padding:6px 0 6px 20px;border-left:1px solid rgba(255,255,255,.14)}
.stat-num{font-family:var(--mono);font-size:30px;font-weight:700;color:var(--cyan);line-height:1.2}
.stat-num span{font-size:16px;color:rgba(237,233,247,.7);margin-left:4px}
.stat-label{margin-top:6px;font-size:13.5px;color:rgba(237,233,247,.62)}

/* ================= 区块通用 ================= */
.section{padding:96px 0}
.section-white{background:#fff}
.section-dark{background:var(--ink);color:#EDE9F7}
.section-head{max-width:720px;margin-bottom:52px}
.kicker{
  display:inline-block;font-family:var(--mono);font-size:12.5px;letter-spacing:.18em;
  color:var(--cyan-deep);margin-bottom:16px;
}
.section-dark .kicker{color:var(--cyan)}
.section-title{font-size:clamp(1.5rem,2.6vw,1.9rem);line-height:1.35;font-weight:700;letter-spacing:-.01em}
.section-desc{margin-top:16px;font-size:16px;line-height:1.9;color:var(--text-2)}
.section-dark .section-desc{color:rgba(237,233,247,.72)}

/* ================= 功能分组（左右交替） ================= */
.feature-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;
  padding:46px 0;border-bottom:1px dashed var(--line);
}
.feature-row:last-of-type{border-bottom:0;padding-bottom:0}
.feature-row:first-of-type{padding-top:0}
.feature-row.rev .feature-media{order:-1}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);box-shadow:var(--sh-2);
}
.feat-num{
  font-family:var(--mono);font-size:13px;letter-spacing:.18em;color:var(--orange);
  display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;
}
.feat-num::after{content:"";width:40px;height:1px;background:rgba(255,138,91,.5)}
.feature-copy h3{font-size:1.35rem;line-height:1.4;font-weight:700;letter-spacing:-.01em}
.feature-copy p{margin-top:14px;color:var(--text-2);line-height:1.9}
.feat-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.feat-list li{position:relative;padding-left:24px;font-size:15px;color:var(--text-2)}
.feat-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 0 4px rgba(47,211,196,.16);
}

/* ================= 时间轴（使用场景） ================= */
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:56px}
.timeline::before{
  content:"";position:absolute;top:6px;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg,rgba(47,211,196,0),rgba(47,211,196,.55),rgba(47,211,196,0));
}
.tl-item{position:relative;padding:0 22px 0 0}
.tl-dot{
  width:13px;height:13px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 6px rgba(47,211,196,.14);margin-bottom:26px;position:relative;z-index:2;
}
.tl-time{font-family:var(--mono);font-size:12.5px;letter-spacing:.12em;color:var(--cyan);margin-bottom:10px}
.tl-item h3{font-size:1.08rem;font-weight:700;color:#fff;margin-bottom:10px}
.tl-item p{font-size:14.5px;line-height:1.85;color:rgba(237,233,247,.7)}

/* ================= 案例（一大两小） ================= */
.case-grid{display:grid;grid-template-columns:1.35fr 1fr;grid-template-rows:auto auto;gap:24px}
.case-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.case-card:hover{border-color:var(--cyan);box-shadow:var(--sh-2);transform:translateY(-3px)}
.case-main{grid-row:span 2}
.case-thumb{position:relative;background:var(--sand);overflow:hidden}
.case-thumb img{width:100%;height:100%;object-fit:cover}
.case-main .case-thumb{aspect-ratio:16/10}
.case-side .case-thumb{aspect-ratio:16/9}
.case-body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.case-main .case-body{padding:30px}
.case-quote{font-size:16.5px;line-height:1.85;color:var(--text)}
.case-main .case-quote{font-size:18px}
.case-side .case-quote{font-size:15px}
.case-client{font-family:var(--mono);font-size:12.5px;color:var(--text-3);letter-spacing:.06em;margin-top:auto}

/* ================= 价格 ================= */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:32px 28px;display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D9D2C7}
.price-card.is-featured{
  background:var(--ink-deep);color:#fff;border-color:transparent;
  box-shadow:var(--sh-3);transform:translateY(-6px);
}
.price-card.is-featured:hover{transform:translateY(-9px)}
.price-name{font-size:1.15rem;font-weight:700}
.price-tag{
  display:inline-block;margin-left:10px;padding:2px 10px;border-radius:var(--r-pill);
  background:var(--orange-soft);color:var(--orange);font-size:12px;font-weight:700;border:1px solid rgba(255,138,91,.45);
}
.price-amount{margin-top:20px;font-family:var(--mono);font-size:32px;font-weight:700;letter-spacing:-.02em}
.price-amount small{font-size:14px;font-weight:500;color:var(--text-3);margin-left:6px;font-family:var(--cjk)}
.is-featured .price-amount small{color:rgba(237,233,247,.6)}
.price-sub{margin-top:8px;font-size:14px;color:var(--text-2)}
.is-featured .price-sub{color:rgba(237,233,247,.7)}
.price-list{margin:26px 0 30px;display:flex;flex-direction:column;gap:12px;flex:1}
.price-list li{position:relative;padding-left:26px;font-size:14.5px;color:var(--text-2)}
.is-featured .price-list li{color:rgba(237,233,247,.82)}
.price-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:8px;
  border-left:2px solid var(--cyan);border-bottom:2px solid var(--cyan);transform:rotate(-45deg);
}
.price-card .btn{width:100%}

/* ================= 最新信息（CMS 循环位） ================= */
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:34px;flex-wrap:wrap;
}
.news-all{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;
  color:var(--cyan-deep);border-bottom:1px solid rgba(31,158,146,.4);padding-bottom:3px;
  transition:color .2s ease,border-color .2s ease;
}
.news-all:hover{color:var(--orange);border-color:var(--orange)}
.news-list{border-top:1px solid var(--line)}
.news-row{
  display:grid;grid-template-columns:132px minmax(0,1fr) auto;gap:24px;align-items:center;
  padding:22px 16px;border-bottom:1px solid var(--line);
  transition:background .2s ease,transform .2s ease;
}
.news-row:hover{background:#FBF9F6;transform:translateX(2px)}
.news-time{font-family:var(--mono);font-size:13px;color:var(--text-3);letter-spacing:.03em}
.news-title{font-size:16.5px;font-weight:600;line-height:1.55;transition:color .2s ease}
.news-row:hover .news-title{color:var(--cyan-deep)}
.news-sum{margin-top:6px;font-size:14px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-badge{
  padding:4px 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;
  border:1px solid rgba(255,138,91,.45);background:var(--orange-soft);color:#C4562B;white-space:nowrap;
}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);background:#FCFAF7;
  padding:54px 24px;text-align:center;color:var(--text-2);
}
.empty-state svg{color:var(--text-3);margin:0 auto 14px;opacity:.65}
.empty-state p{font-size:15px}

/* ================= FAQ ================= */
.faq{max-width:880px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--line);position:relative;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 48px 22px 22px;
  font-size:16.5px;font-weight:600;position:relative;
  border-left:3px solid var(--cyan);transition:background .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#FBF9F6;color:var(--cyan-deep)}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:28px;width:10px;height:10px;
  border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);transition:transform .25s ease,border-color .25s ease;
}
.faq-item[open] summary{background:var(--cyan-soft);color:var(--cyan-deep)}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--cyan-deep)}
.faq-body{padding:4px 48px 26px 22px;font-size:15.5px;line-height:1.9;color:var(--text-2)}

/* ================= 结尾 CTA ================= */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-deep);color:#fff;
  padding:84px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(105deg,rgba(25,16,51,.95),rgba(25,16,51,.78)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.3fr) auto;gap:40px;align-items:center}
.cta-inner h2{font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.35;font-weight:700;letter-spacing:-.01em}
.cta-inner p{margin-top:16px;font-size:16px;color:rgba(237,233,247,.76);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ================= 页脚 ================= */
.footer{background:var(--ink);color:rgba(237,233,247,.74);padding:70px 0 0;position:relative;overflow:hidden}
.footer::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.4) 1px,transparent 1px);
  background-size:34px 34px;opacity:.045;
}
.footer .container{position:relative;z-index:2}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.foot-col h3{
  font-size:13px;font-family:var(--mono);letter-spacing:.16em;
  color:rgba(237,233,247,.5);margin-bottom:18px;font-weight:600;
}
.foot-col ul{display:flex;flex-direction:column;gap:12px}
.foot-col a{font-size:14.5px;transition:color .2s ease}
.foot-col a:hover{color:var(--cyan)}
.foot-meta{font-size:14px;line-height:1.9}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:14px;line-height:1.9;max-width:320px}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:22px;padding-bottom:26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(237,233,247,.5);font-family:var(--mono);
}

/* ================= 响应式 ================= */
@media (max-width:1199px){
  .container{padding:0 26px}
  .hero-grid{gap:44px}
  .feature-row{gap:40px}
  .news-row{grid-template-columns:118px minmax(0,1fr) auto;gap:18px}
}
@media (max-width:1023px){
  :root{--sidebar-w:208px}
  .sidebar-inner{padding:22px 16px 20px}
  .brand-text strong{font-size:15px}
  .nav-item{font-size:14px;padding:10px}
  .section{padding:72px 0}
  .hero{padding:80px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{max-width:620px}
  .feature-row{grid-template-columns:1fr;gap:26px;padding:34px 0}
  .feature-row.rev .feature-media{order:0}
  .timeline{grid-template-columns:repeat(2,1fr);gap:34px 0}
  .timeline::before{display:none}
  .case-grid{grid-template-columns:1fr;grid-template-rows:none}
  .case-main{grid-row:auto}
  .price-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .price-card.is-featured{transform:none}
  .price-card.is-featured:hover{transform:translateY(-3px)}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .sidebar{width:288px;transform:translateX(-100%);box-shadow:var(--sh-3)}
  .sidebar.open{transform:none}
  .page{margin-left:0}
  .mobilebar{display:flex}
  .container{padding:0 20px}
  .hero{padding:64px 0 58px}
  .hero h1{font-size:clamp(1.75rem,7vw,2.3rem)}
  .hero-sub{font-size:16px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 auto}
  .stats-grid{grid-template-columns:1fr 1fr;gap:20px}
  .stat-num{font-size:24px}
  .section{padding:58px 0}
  .section-head{margin-bottom:34px}
  .timeline{grid-template-columns:1fr;gap:28px}
  .tl-item{padding-right:0}
  .news-row{grid-template-columns:1fr;gap:10px;padding:18px 12px}
  .news-badge{justify-self:start}
  .faq-item summary{padding:18px 42px 18px 18px;font-size:15.5px}
  .faq-body{padding:0 42px 22px 18px}
  .cta-band{padding:60px 0}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:480px){
  body{font-size:16px}
  .container{padding:0 16px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .stats-grid{grid-template-columns:1fr;gap:16px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .case-body{padding:22px 20px 24px}
  .price-card{padding:26px 22px}
}

/* roulang page: article */
:root{
  --ink:#191033;
  --night:#2A1B4E;
  --night-soft:#221640;
  --teal:#2FD3C4;
  --teal-ink:#1F9E92;
  --teal-soft:#E4F7F5;
  --sunset:#FF8A5B;
  --sand:#F6F3EE;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --line-soft:#F0EBE3;
  --text:#1C1730;
  --muted:#5B5470;
  --weak:#8E88A0;
  --ok:#1F9E92;
  --warn:#E8A33D;
  --err:#D9503F;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(42,27,78,.06);
  --sh-2:0 12px 32px -12px rgba(42,27,78,.18);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;object-fit:cover;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid var(--teal);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.skip-link{position:absolute;left:12px;top:-60px;z-index:200;background:var(--teal);color:#0F0A22;padding:10px 16px;border-radius:var(--r-btn);font-weight:600}
.skip-link:focus{top:12px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ===== 侧边导航 ===== */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:60;
  display:flex;flex-direction:column;gap:26px;
  padding:26px 18px 22px;
  background:linear-gradient(180deg,#2A1B4E 0%,#191033 100%);
  border-right:1px solid rgba(255,255,255,.07);
  overflow-y:auto;
}
.sidebar::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.06;
}
.sidebar > *{position:relative;z-index:1}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,#2FD3C4,#1F9E92);
  color:#0E0A1E;font-weight:700;font-size:19px;letter-spacing:.02em;
  box-shadow:0 8px 20px -10px rgba(47,211,196,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{color:#FFFFFF;font-size:16px;font-weight:700;letter-spacing:.01em}
.brand-text em{font-style:normal;color:rgba(255,255,255,.6);font-size:12px;letter-spacing:.16em}
.nav-label{color:rgba(255,255,255,.42);font-size:12px;letter-spacing:.2em;margin:0 0 10px 12px}
.side-nav ul{display:flex;flex-direction:column;gap:4px}
.side-nav a{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:10px;
  color:rgba(255,255,255,.74);font-size:15px;
  border-left:3px solid transparent;
}
.side-nav a::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:rgba(255,255,255,.28);flex:0 0 auto;
}
.side-nav a:hover{background:rgba(255,255,255,.07);color:#FFFFFF}
.side-nav a:hover::before{background:var(--teal)}
.side-nav a.is-active{
  background:rgba(47,211,196,.14);border-left-color:var(--teal);color:#FFFFFF;
}
.side-nav a.is-active::before{background:var(--sunset)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.side-status{
  display:flex;align-items:center;gap:8px;
  font-size:12px;color:rgba(255,255,255,.6);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);
  border-radius:10px;padding:9px 12px;
}
.dot-ok{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(47,211,196,.16)}
.side-link{color:rgba(255,255,255,.62);font-size:13px;text-align:center}
.side-link:hover{color:var(--teal)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--teal);color:#0E0A1E;box-shadow:0 10px 24px -14px rgba(47,211,196,.9)}
.btn-primary:hover{background:#43E2D4;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border-color:var(--line);color:var(--text);background:#fff}
.btn-outline:hover{border-color:var(--teal);background:var(--teal-soft);color:var(--teal-ink)}
.btn-ghost{color:var(--teal-ink);padding:0 4px;height:auto;border:0;text-decoration:underline;text-underline-offset:4px}
.btn-ghost:hover{color:var(--sunset)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ===== 移动端顶栏 ===== */
.mobilebar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  align-items:center;justify-content:space-between;gap:12px;
  padding:0 18px;background:rgba(25,16,51,.97);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.mobilebar .brand-text strong{font-size:15px}
.mobilebar .brand-text em{font-size:11px;letter-spacing:.12em}
.menu-btn{
  width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:#fff;border:1px solid rgba(255,255,255,.16);
}
.menu-btn:hover{border-color:var(--teal);color:var(--teal)}
.scrim{display:none;position:fixed;inset:0;background:rgba(15,10,34,.6);z-index:55}
.scrim.is-on{display:block}

/* ===== 内容壳层 ===== */
.shell{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;background:var(--sand)}
.page-banner{
  position:relative;color:#fff;
  background-image:linear-gradient(100deg,rgba(25,16,51,.9),rgba(42,27,78,.78)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:46px 0 42px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.page-banner::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,211,196,.5),transparent);
}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.66);flex-wrap:wrap}
.crumbs a{color:rgba(255,255,255,.72)}
.crumbs a:hover{color:var(--teal)}
.crumb-sep{color:rgba(255,255,255,.3)}
.crumb-cur{color:#fff}
.banner-note{margin-top:12px;font-size:13px;color:rgba(255,255,255,.5);font-family:var(--mono);letter-spacing:.04em}

/* ===== 文章 ===== */
.post-wrap{padding:64px 0 8px}
.post-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:46px 50px;
  max-width:880px;margin:0 auto;
}
.post-head{border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:30px}
.post-kicker{
  font-size:13px;color:var(--sunset);letter-spacing:.08em;margin-bottom:12px;
}
.post-title{font-size:clamp(1.7rem,2.9vw,2.25rem);line-height:1.28;font-weight:700;letter-spacing:-.01em}
.post-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:14px;font-size:13px;color:var(--weak)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-k{color:var(--weak)}
.meta-item time,.meta-item .mono{color:var(--muted)}
.post-body{max-width:760px;font-size:17px;line-height:1.9}
.post-body > * + *{margin-top:20px}
.post-body p{color:#2A2440}
.post-body h2{
  font-size:1.42rem;line-height:1.45;font-weight:700;margin-top:42px;
  padding-left:14px;border-left:3px solid var(--teal);
}
.post-body h3{font-size:1.16rem;font-weight:700;margin-top:30px;color:#241C3E}
.post-body h4{font-size:1.02rem;font-weight:700;margin-top:22px;color:var(--muted)}
.post-body ul{list-style:disc;padding-left:22px}
.post-body ol{list-style:decimal;padding-left:22px}
.post-body li{margin:8px 0;color:#2A2440}
.post-body a{color:var(--teal-ink);text-decoration:underline;text-underline-offset:3px}
.post-body a:hover{color:var(--sunset)}
.post-body strong{font-weight:700;color:#241C3E}
.post-body blockquote{
  border-left:3px solid var(--teal);background:var(--teal-soft);
  padding:16px 22px;border-radius:0 12px 12px 0;color:var(--muted);
}
.post-body img{border-radius:12px;margin:26px auto;height:auto}
.post-body figure{margin:26px 0}
.post-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:10px}
.post-body table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto}
.post-body th,.post-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.post-body th{background:#FBF9F6;font-weight:700}
.post-body code{font-family:var(--mono);background:#F1EDE6;padding:2px 6px;border-radius:6px;font-size:.9em}
.post-body pre{background:var(--night);color:#EDE9FF;padding:18px;border-radius:12px;overflow-x:auto}
.post-body pre code{background:none;color:inherit;padding:0}
.post-body hr{border:0;height:1px;background:var(--line);margin:34px 0}
.post-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;
  border-radius:var(--r-pill);border:1px solid rgba(255,138,91,.45);
  background:rgba(255,138,91,.08);color:#B85A33;font-size:13px;
}
.tag:hover{border-color:var(--sunset);background:rgba(255,138,91,.16);color:#A44C27}
.post-back{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* 空态 */
.empty-state{
  text-align:center;padding:52px 20px;border:1px dashed var(--line);
  border-radius:var(--r-card);background:#FBF9F6;
}
.empty-state svg{color:var(--weak);margin:0 auto 16px}
.empty-state h3{font-size:1.15rem;color:var(--text);margin-bottom:8px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* ===== 相关推荐 ===== */
.related{padding:72px 0 8px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:1.5rem;font-weight:700}
.section-head p{color:var(--muted);font-size:14px;margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rec-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rec-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--teal)}
.rec-media{position:relative;aspect-ratio:16/10;background:var(--night);overflow:hidden}
.rec-media img{width:100%;height:100%;transition:transform .4s ease}
.rec-card:hover .rec-media img{transform:scale(1.04)}
.rec-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:1.06rem;line-height:1.5;font-weight:700}
.rec-body p{font-size:14px;color:var(--muted);line-height:1.75}
.rec-more{margin-top:auto;font-size:13px;color:var(--teal-ink);font-weight:600}
.rec-card:hover .rec-more{color:var(--sunset)}

/* ===== CTA ===== */
.cta-band{
  margin-top:80px;padding:74px 0;color:#fff;position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(25,16,51,.94),rgba(42,27,78,.86)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:30px 30px;opacity:.06;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center}
.cta-copy h2{font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.35;font-weight:700}
.cta-copy p{color:rgba(255,255,255,.72);margin-top:14px;font-size:15px;max-width:46ch}
.cta-form{display:flex;flex-direction:column;gap:12px}
.cta-field{display:flex;gap:12px}
.cta-form input[type="email"]{
  flex:1;height:46px;padding:0 16px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);color:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cta-form input[type="email"]::placeholder{color:rgba(255,255,255,.42)}
.cta-form input[type="email"]:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(47,211,196,.25)}
.cta-form input.is-error{border-color:var(--err);box-shadow:0 0 0 3px rgba(217,80,63,.2)}
.form-msg{font-size:13px;min-height:20px;color:rgba(255,255,255,.6)}
.form-msg.is-ok{color:var(--teal)}
.form-msg.is-error{color:#FF9C8B}

/* ===== 页脚 ===== */
.footer{background:var(--ink);color:rgba(255,255,255,.66);padding:64px 0 26px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:36px}
.foot-col h3{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:16px;font-weight:700}
.foot-col ul{display:flex;flex-direction:column;gap:10px;font-size:14px}
.foot-col a{color:rgba(255,255,255,.66)}
.foot-col a:hover{color:var(--teal)}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:14px;line-height:1.8;max-width:34ch;color:rgba(255,255,255,.58)}
.foot-meta{font-size:13px;color:rgba(255,255,255,.58)}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.46);
}

/* 骨架与状态 */
.skeleton{background:linear-gradient(90deg,#EFEAE3 25%,#F7F4EF 37%,#EFEAE3 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:8px}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

@media (max-width:1199px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
  .foot-grid .foot-col:last-child{grid-column:1/-1}
}
@media (max-width:1023px){
  :root{--sidebar-w:88px}
  .sidebar{padding:20px 12px;align-items:center}
  .brand{justify-content:center}
  .brand-text{display:none}
  .nav-label{display:none}
  .side-nav{width:100%}
  .side-nav a{
    justify-content:center;padding:12px 6px;border-left:0;
    border-radius:12px;font-size:0;gap:0;
  }
  .side-nav a::before{display:none}
  .side-nav a::after{
    content:attr(data-icon);font-size:15px;font-weight:600;letter-spacing:.02em;
  }
  .side-nav a.is-active{background:rgba(47,211,196,.16)}
  .side-foot .btn{width:48px;padding:0;font-size:0}
  .side-foot .btn::after{content:"→";font-size:16px}
  .side-status{justify-content:center;padding:8px;font-size:0}
  .side-link{font-size:0}
  .side-link::after{content:"?";font-size:14px}
  .container{padding:0 24px}
  .post-card{padding:36px 32px}
  .cta-inner{grid-template-columns:1fr;gap:28px}
}
@media (max-width:767px){
  body{padding-top:64px}
  .mobilebar{display:flex}
  .sidebar{
    width:264px;padding:22px 18px;align-items:stretch;
    transform:translateX(-100%);transition:transform .28s ease;
    box-shadow:24px 0 48px -24px rgba(0,0,0,.6);
  }
  .sidebar.is-open{transform:translateX(0)}
  .sidebar .brand{justify-content:flex-start}
  .sidebar .brand-text{display:flex}
  .sidebar .nav-label{display:block}
  .sidebar .side-nav a{justify-content:flex-start;padding:11px 12px;font-size:15px;border-left:3px solid transparent;gap:10px}
  .sidebar .side-nav a::before{display:block}
  .sidebar .side-nav a::after{content:none}
  .sidebar .side-foot .btn{width:100%;padding:0 22px;font-size:15px}
  .sidebar .side-foot .btn::after{content:none}
  .sidebar .side-status{justify-content:flex-start;font-size:12px}
  .sidebar .side-link{font-size:13px}
  .sidebar .side-link::after{content:none}
  .shell{margin-left:0}
  .page-banner{padding:34px 0 30px}
  .post-wrap{padding:40px 0 0}
  .post-card{padding:26px 20px;border-radius:12px}
  .post-body{font-size:16px;line-height:1.85}
  .related{padding:52px 0 0}
  .related-grid{grid-template-columns:1fr}
  .cta-band{margin-top:56px;padding:52px 0}
  .cta-field{flex-direction:column}
  .cta-field .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:480px){
  .container{padding:0 18px}
  .post-title{font-size:1.5rem}
  .post-meta{gap:8px 16px}
  .btn{width:100%}
  .post-back .btn{width:100%}
  .banner-note{font-size:12px}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --ink:#2A1B4E;
  --ink-deep:#191033;
  --cyan:#2FD3C4;
  --cyan-dark:#1F9E92;
  --orange:#FF8A5B;
  --sand:#F6F3EE;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --line-soft:#F0EBE3;
  --text:#1C1730;
  --text-2:#5B5470;
  --text-3:#8E88A0;
  --ok:#1F9E92;
  --warn:#E8A33D;
  --err:#D9503F;
  --r-card:14px;
  --r-btn:10px;
  --r-media:16px;
  --shadow-1:0 1px 2px rgba(42,27,78,.06);
  --shadow-2:0 12px 32px -12px rgba(42,27,78,.18);
  --shadow-3:0 18px 42px -14px rgba(42,27,78,.28);
  --sidebar-w:240px;
  --max:1240px;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
  overflow-wrap:break-word;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:3px solid var(--cyan);
  outline-offset:2px;
  border-radius:6px;
}
img{max-width:100%;display:block;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
strong{font-weight:700;}
::selection{background:rgba(47,211,196,.32);}

/* ============ 布局骨架 ============ */
.mobilebar{display:none;}
.sidebar{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--sidebar-w);
  background:var(--ink-deep);
  color:#EFEAF8;
  padding:26px 20px 22px;
  display:flex;
  flex-direction:column;
  gap:26px;
  z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
.main{
  margin-left:var(--sidebar-w);
  padding:34px 34px 0;
  min-height:100vh;
}
.container{max-width:var(--max);margin:0 auto;}
.block{padding:0 0 84px;}
.block-tight{padding-bottom:64px;}

/* ============ 品牌 ============ */
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(150deg,var(--cyan) 0%,#1F9E92 100%);
  color:var(--ink-deep);
  font-size:20px;font-weight:800;line-height:1;
  box-shadow:0 6px 18px -8px rgba(47,211,196,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.02em;color:#FFFFFF;}
.brand-text em{font-style:normal;font-size:12px;letter-spacing:.16em;color:var(--cyan);font-family:var(--mono);}
.footer .brand-text strong{color:#FFFFFF;}

/* ============ 侧栏导航 ============ */
.side-title{
  font-size:12px;letter-spacing:.18em;color:rgba(255,255,255,.42);
  font-family:var(--mono);margin:0 0 12px 10px;
}
.side-nav{display:flex;flex-direction:column;gap:6px;}
.side-link{
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:10px;
  color:rgba(240,236,250,.78);
  font-size:14.5px;line-height:1.4;
  border:1px solid transparent;
}
.side-link .ico{display:grid;place-items:center;width:20px;height:20px;flex:0 0 20px;color:currentColor;}
.side-link:hover{background:rgba(255,255,255,.07);color:#FFFFFF;}
.side-link.active{
  background:rgba(47,211,196,.14);
  color:#FFFFFF;
  border-color:rgba(47,211,196,.42);
  box-shadow:inset 3px 0 0 var(--cyan);
}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
.side-note{font-size:12px;color:rgba(255,255,255,.5);font-family:var(--mono);line-height:1.6;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .18s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--cyan);color:var(--ink-deep);box-shadow:0 10px 24px -14px rgba(47,211,196,.95);}
.btn-primary:hover{background:#45E2D4;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-ghost{border-color:rgba(255,255,255,.34);color:#FFFFFF;}
.btn-ghost:hover{background:rgba(47,211,196,.14);border-color:var(--cyan);}
.btn-outline{border-color:var(--line);color:var(--ink);background:var(--card);}
.btn-outline:hover{border-color:var(--cyan);background:rgba(47,211,196,.1);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--cyan-dark);
  border-bottom:1px solid transparent;height:auto;padding:0;
}
.btn-link:hover{color:var(--orange);border-bottom-color:var(--orange);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 首屏 ============ */
.hero{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  background:var(--ink-deep) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:58px 52px;
  color:#FFFFFF;
  box-shadow:var(--shadow-3);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(25,16,51,.95) 0%,rgba(25,16,51,.85) 46%,rgba(25,16,51,.58) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;
  color:var(--cyan);border:1px solid rgba(47,211,196,.45);
  border-radius:999px;padding:6px 14px;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(1.9rem,3.2vw,2.6rem);
  line-height:1.22;font-weight:700;letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero h1 span{color:var(--cyan);}
.hero .lead{font-size:17px;line-height:1.9;color:rgba(255,255,255,.82);max-width:36em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-note{
  margin-top:22px;font-family:var(--mono);font-size:12.5px;
  color:rgba(255,255,255,.58);letter-spacing:.04em;
}
.hero-media{
  position:relative;border-radius:var(--r-media);overflow:hidden;
  aspect-ratio:4/3;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-tag{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(25,16,51,.86);
  border-left:3px solid var(--orange);
  border-radius:10px;padding:12px 14px;
  font-size:13.5px;line-height:1.6;color:rgba(255,255,255,.9);
  font-family:var(--mono);
}

/* ============ 信任条 ============ */
.trust{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);
  margin-top:-26px;position:relative;z-index:5;overflow:hidden;
}
.trust-item{padding:26px 26px;border-right:1px solid var(--line-soft);}
.trust-item:last-child{border-right:0;}
.trust-item .num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--ink);line-height:1.2;}
.trust-item .num em{font-style:normal;font-size:14px;color:var(--cyan-dark);margin-left:4px;}
.trust-item p{font-size:14px;color:var(--text-2);margin-top:6px;line-height:1.7;}

/* ============ 通用板块头 ============ */
.sec-head{max-width:760px;margin-bottom:38px;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;
  color:var(--cyan-dark);margin-bottom:14px;
}
.sec-tag::before{content:"";width:26px;height:1px;background:var(--cyan-dark);opacity:.6;}
.sec-head h2{font-size:clamp(1.5rem,2.4vw,1.9rem);line-height:1.35;font-weight:700;letter-spacing:-.01em;}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:16px;}

/* ============ 编号要点：左文右单 ============ */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:52px;align-items:start;}
.split-media{
  position:sticky;top:34px;
  border-radius:var(--r-media);overflow:hidden;
  aspect-ratio:4/3;background:var(--ink);
  box-shadow:var(--shadow-2);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  background:linear-gradient(0deg,rgba(25,16,51,.9),rgba(25,16,51,0));
  color:rgba(255,255,255,.9);font-size:13px;padding:26px 18px 14px;
  font-family:var(--mono);
}
.points{display:flex;flex-direction:column;gap:8px;}
.point{
  display:grid;grid-template-columns:64px 1fr;gap:20px;
  padding:24px 0;border-bottom:1px solid var(--line);
  transition:background-color .2s ease,transform .2s ease;
}
.point:last-child{border-bottom:0;}
.point:hover{transform:translateX(3px);}
.point .idx{
  font-family:var(--mono);font-size:22px;font-weight:700;
  color:var(--orange);line-height:1.4;
}
.point h3{font-size:1.16rem;font-weight:700;margin-bottom:8px;line-height:1.5;}
.point p{color:var(--text-2);font-size:15.5px;}
.point .mini{
  display:inline-block;margin-top:12px;
  font-family:var(--mono);font-size:12.5px;color:var(--cyan-dark);
  border:1px solid rgba(47,211,196,.4);border-radius:999px;padding:4px 12px;
}

/* ============ 适用场景：横向时间轴 ============ */
.timeline{position:relative;padding-top:36px;}
.timeline-line{
  position:absolute;top:52px;left:0;right:0;height:1px;
  background:var(--line);
}
.timeline-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative;}
.tl-item{position:relative;padding-top:34px;}
.tl-item::before{
  content:"";position:absolute;top:10px;left:0;
  width:14px;height:14px;border-radius:50%;
  background:var(--card);border:2px solid var(--cyan);
}
.tl-item h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;}
.tl-item p{font-size:14.5px;color:var(--text-2);}
.tl-item .tl-meta{
  font-family:var(--mono);font-size:12.5px;color:var(--text-3);
  margin-bottom:10px;letter-spacing:.06em;
}

/* ============ 流程：左右交替图文 ============ */
.flow{display:flex;flex-direction:column;gap:26px;}
.flow-row{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.flow-row:hover{border-color:rgba(47,211,196,.55);box-shadow:var(--shadow-2);transform:translateY(-3px);}
.flow-copy{padding:34px 34px 30px;}
.flow-copy .step{
  font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:var(--orange);
  display:block;margin-bottom:12px;
}
.flow-copy h3{font-size:1.22rem;font-weight:700;margin-bottom:12px;}
.flow-copy p{color:var(--text-2);font-size:15.5px;}
.flow-copy ul{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.flow-copy li{
  position:relative;padding-left:18px;font-size:14.5px;color:var(--text-2);
}
.flow-copy li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;
  border-radius:50%;background:var(--cyan);opacity:.75;
}
.flow-media{order:2;aspect-ratio:16/10;background:var(--sand);overflow:hidden;}
.flow-media img{width:100%;height:100%;object-fit:cover;}
.flow-row.reverse .flow-media{order:1;}
.flow-row.reverse .flow-copy{order:2;}

/* ============ FAQ ============ */
.faq{border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);overflow:hidden;box-shadow:var(--shadow-1);}
.faq details{border-bottom:1px solid var(--line-soft);}
.faq details:last-child{border-bottom:0;}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px 22px 30px;
  font-size:16.5px;font-weight:600;
  position:relative;
  transition:background-color .2s ease;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--cyan);opacity:0;transition:opacity .2s ease;
}
.faq summary:hover{background:#FBF9F6;}
.faq summary .sign{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);
  transition:transform .25s ease,background-color .25s ease,color .25s ease,border-color .25s ease;
}
.faq details[open] summary{background:rgba(47,211,196,.07);}
.faq details[open] summary::before{opacity:1;}
.faq details[open] summary .sign{
  transform:rotate(45deg);background:var(--cyan);color:var(--ink-deep);border-color:var(--cyan);
}
.faq .answer{padding:0 30px 24px 30px;color:var(--text-2);font-size:15.5px;max-width:78ch;}
.faq .answer strong{color:var(--ink);}

/* ============ CTA 带 ============ */
.cta{
  position:relative;overflow:hidden;
  border-radius:20px;
  background:var(--ink) url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  padding:56px 52px;
  color:#FFFFFF;
  box-shadow:var(--shadow-3);
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(25,16,51,.95) 0%,rgba(25,16,51,.78) 62%,rgba(25,16,51,.66) 100%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr auto;gap:36px;align-items:center;}
.cta h2{font-size:clamp(1.4rem,2.3vw,1.85rem);font-weight:700;line-height:1.4;margin-bottom:12px;}
.cta p{color:rgba(255,255,255,.82);font-size:16px;max-width:52ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12.5px;color:var(--text-3);
  margin-bottom:20px;
}
.crumb a:hover{color:var(--cyan-dark);}
.crumb .sep{opacity:.6;}

/* ============ 页脚 ============ */
.footer{
  background:var(--ink-deep);color:rgba(255,255,255,.72);
  margin-left:var(--sidebar-w);
  padding:64px 34px 30px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}
.foot-col h3{
  font-size:13px;letter-spacing:.14em;color:rgba(255,255,255,.5);
  font-family:var(--mono);font-weight:600;margin-bottom:18px;
}
.foot-col ul{display:flex;flex-direction:column;gap:11px;}
.foot-col a{font-size:14.5px;color:rgba(255,255,255,.74);}
.foot-col a:hover{color:var(--cyan);}
.foot-brand p{font-size:14.5px;line-height:1.85;margin-top:18px;max-width:34ch;color:rgba(255,255,255,.62);}
.foot-meta li{font-size:14px;color:rgba(255,255,255,.62);font-family:var(--mono);}
.foot-bottom{
  margin-top:48px;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;font-family:var(--mono);color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .container{max-width:1140px;}
}
@media (max-width:1199px){
  .hero{padding:48px 40px;}
  .hero-inner{gap:38px;}
  .split{gap:38px;}
  .trust-item{padding:22px 20px;}
  .flow-copy{padding:28px;}
}
@media (max-width:1023px){
  :root{--sidebar-w:88px;}
  .sidebar{width:88px;padding:22px 12px;align-items:center;}
  .sidebar .brand-text,
  .sidebar .side-title,
  .sidebar .side-note,
  .sidebar .side-link .txt{display:none;}
  .sidebar .side-link{justify-content:center;padding:12px;width:52px;}
  .sidebar .side-foot{width:100%;align-items:center;}
  .sidebar .side-foot .btn{width:52px;height:46px;padding:0;}
  .sidebar .side-foot .btn span.lbl{display:none;}
  .main{padding:26px 24px 0;}
  .footer{margin-left:88px;padding:56px 24px 26px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .trust{grid-template-columns:repeat(2,1fr);}
  .trust-item:nth-child(2){border-right:0;}
  .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid var(--line-soft);}
  .timeline-grid{grid-template-columns:repeat(2,1fr);gap:34px 26px;}
  .timeline-line{display:none;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .mobilebar{
    display:flex;align-items:center;justify-content:space-between;
    position:fixed;top:0;left:0;right:0;height:62px;
    padding:0 16px;background:var(--ink-deep);z-index:80;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .mobilebar .brand-text{display:flex;}
  .menu-btn{
    width:42px;height:42px;border-radius:10px;
    display:grid;place-items:center;
    border:1px solid rgba(255,255,255,.2);color:#FFFFFF;
  }
  .menu-btn:hover{border-color:var(--cyan);color:var(--cyan);}
  .sidebar{
    width:272px;padding:24px 20px;align-items:flex-start;
    transform:translateX(-100%);
    transition:transform .28s ease;
    box-shadow:24px 0 60px -30px rgba(0,0,0,.8);
  }
  .sidebar.open{transform:none;}
  .sidebar .brand-text,
  .sidebar .side-title,
  .sidebar .side-note,
  .sidebar .side-link .txt{display:block;}
  .sidebar .side-title{display:block;}
  .sidebar .side-link{justify-content:flex-start;padding:11px 12px;width:100%;}
  .sidebar .side-foot{align-items:stretch;width:100%;}
  .sidebar .side-foot .btn{width:100%;padding:0 18px;}
  .sidebar .side-foot .btn span.lbl{display:inline;}
  .main{margin-left:0;padding:80px 16px 0;}
  .footer{margin-left:0;padding:48px 16px 24px;}
  .foot-grid{grid-template-columns:1fr;gap:30px;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .hero{padding:38px 22px;border-radius:16px;}
  .hero-inner{grid-template-columns:1fr;gap:30px;}
  .hero h1{font-size:1.72rem;}
  .hero-actions .btn{width:100%;}
  .trust{margin-top:16px;grid-template-columns:1fr;}
  .trust-item{border-right:0;border-bottom:1px solid var(--line-soft);}
  .trust-item:last-child{border-bottom:0;}
  .block{padding-bottom:56px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split-media{position:static;}
  .point{grid-template-columns:46px 1fr;gap:14px;padding:20px 0;}
  .timeline-grid{grid-template-columns:1fr;gap:24px;}
  .tl-item{padding-top:26px;}
  .flow-row,.flow-row.reverse{grid-template-columns:1fr;}
  .flow-row .flow-media,.flow-row.reverse .flow-media{order:1;aspect-ratio:16/9;}
  .flow-row .flow-copy,.flow-row.reverse .flow-copy{order:2;padding:24px 22px;}
  .faq summary{padding:18px 18px 18px 22px;font-size:15.5px;}
  .faq .answer{padding:0 22px 20px 22px;}
  .cta{padding:38px 22px;border-radius:16px;}
  .cta-inner{grid-template-columns:1fr;gap:24px;}
  .cta-actions .btn{width:100%;}
  .crumb{flex-wrap:wrap;}
}
@media (max-width:480px){
  .hero h1{font-size:1.55rem;}
  .hero .lead{font-size:15.5px;}
  .sec-head h2{font-size:1.38rem;}
  .point h3{font-size:1.06rem;}
  .trust-item .num{font-size:23px;}
  .btn{height:44px;padding:0 18px;font-size:14.5px;}
}

/* roulang page: category2 */
:root{
  --ink:#2A1B4E;
  --ink-deep:#191033;
  --ink-soft:#3A2A66;
  --teal:#2FD3C4;
  --teal-strong:#45E0D2;
  --teal-dark:#1F9E92;
  --teal-wash:#EAFBF8;
  --orange:#FF8A5B;
  --orange-wash:#FFF1EA;
  --bg:#F6F3EE;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --line-soft:#F0EBE3;
  --text:#1C1730;
  --muted:#5B5470;
  --faint:#8E88A0;
  --ok:#1F9E92;
  --warn:#E8A33D;
  --danger:#D9503F;
  --r-card:14px;
  --r-btn:10px;
  --r-sm:8px;
  --sh-1:0 1px 2px rgba(42,27,78,.06);
  --sh-2:0 12px 32px -12px rgba(42,27,78,.18);
  --sh-3:0 18px 44px -16px rgba(42,27,78,.26);
  --sidebar:240px;
  --sidebar-narrow:88px;
  --maxw:1240px;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--teal);outline-offset:2px;border-radius:6px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}

/* ============ 品牌标记 ============ */
.brand{display:flex;align-items:center;gap:12px;color:#F5F1FF}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--teal) 0%,#1F9E92 100%);
  color:#12102A;font-size:19px;font-weight:700;letter-spacing:0;
  box-shadow:0 8px 20px -10px rgba(47,211,196,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:15px;letter-spacing:.02em;color:#FFFFFF}
.brand-text em{font-style:normal;font-size:12px;color:var(--teal);letter-spacing:.28em}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:var(--ink-deep);
  display:flex;flex-direction:column;
  padding:26px 18px 22px;
  z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
.sidebar::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;
  pointer-events:none;
}
.sidebar > *{position:relative}
.side-nav{margin-top:32px;flex:1}
.side-nav ul{display:flex;flex-direction:column;gap:6px}
.nav-link{
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:10px;
  color:#C9C2E0;font-size:14.5px;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.nav-ico{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:600;
  background:rgba(47,211,196,.12);color:var(--teal);
  transition:background-color .18s ease,color .18s ease;
}
.nav-link:hover{background:rgba(255,255,255,.07);color:#fff;transform:translateX(2px)}
.nav-link:hover .nav-ico{background:rgba(255,138,91,.2);color:var(--orange)}
.nav-link.is-active{background:rgba(47,211,196,.14);color:#FFFFFF;font-weight:600}
.nav-link.is-active .nav-ico{background:var(--teal);color:#12102A}
.side-foot{margin-top:20px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09)}
.side-note{margin-top:12px;font-size:12.5px;line-height:1.7;color:#8F87AB}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--teal);color:#12102A;box-shadow:0 10px 24px -14px rgba(47,211,196,.95)}
.btn-primary:hover{background:var(--teal-strong);transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(47,211,196,.95)}
.btn-ghost{border-color:rgba(255,255,255,.34);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(47,211,196,.16);border-color:var(--teal);color:#fff;transform:translateY(-1px)}
.btn-outline{border-color:var(--line);background:#fff;color:var(--ink)}
.btn-outline:hover{border-color:var(--teal);background:var(--teal-wash);transform:translateY(-1px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.link-underline{color:var(--teal-dark);font-weight:600;border-bottom:1px solid rgba(31,158,146,.35)}
.link-underline:hover{color:var(--orange);border-bottom-color:rgba(255,138,91,.5)}

/* ============ 布局 ============ */
.main{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column}
.main > main{flex:1}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:var(--orange);text-transform:uppercase;display:block;margin-bottom:14px}
.sec-head h2{font-size:clamp(1.5rem,2.4vw,1.9rem);color:var(--ink)}
.sec-head p{margin-top:16px;color:var(--muted);font-size:16px}

/* ============ 首屏 ============ */
.hero{position:relative;overflow:hidden;background:var(--ink-deep);color:#fff}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.4}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(25,16,51,.95) 0%,rgba(25,16,51,.88) 46%,rgba(42,27,78,.6) 100%);
}
.hero .container{position:relative;z-index:2;padding-top:88px;padding-bottom:80px}
.hero-inner{max-width:820px}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  border:1px solid rgba(255,138,91,.48);background:rgba(255,138,91,.13);color:#FFD9C7;
}
.hero h1{margin-top:22px;font-size:clamp(1.9rem,3.6vw,2.7rem);line-height:1.2;color:#fff}
.hero-lead{margin-top:22px;font-size:17px;color:#CFC8E4;max-width:700px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:34px;font-size:13px;color:#9C94B8}
.hero-trust li{display:flex;align-items:center;gap:8px}
.hero-trust li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal);flex:0 0 6px}

/* ============ 数据条 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease}
.stat:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:rgba(47,211,196,.6)}
.stat-num{font-family:var(--mono);font-size:2rem;font-weight:700;color:var(--ink);line-height:1.1}
.stat-num span{font-size:.95rem;color:var(--orange);margin-left:4px;font-weight:600}
.stat-label{margin-top:10px;font-size:14.5px;color:var(--muted)}

/* ============ 导语 ============ */
.intro{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.intro-body h2{font-size:clamp(1.5rem,2.3vw,1.85rem);color:var(--ink)}
.intro-body p{margin-top:18px;color:var(--muted)}
.intro-body p strong{color:var(--ink);font-weight:600}
.intro-facts{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.intro-facts li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text)}
.intro-facts li b{font-family:var(--mono);color:var(--teal-dark);font-size:14px;flex:0 0 auto;padding-top:3px}
.intro-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);aspect-ratio:4/3;background:var(--ink)}
.intro-media img{width:100%;height:100%;object-fit:cover}

/* ============ 三块并列叙事 ============ */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pillar{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.pillar:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:rgba(47,211,196,.65)}
.pillar-media{aspect-ratio:16/10;border-radius:10px;overflow:hidden;background:var(--ink);margin-bottom:20px}
.pillar-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.pillar:hover .pillar-media img{transform:scale(1.04)}
.pillar-idx{font-family:var(--mono);font-size:13px;color:var(--orange);letter-spacing:.1em}
.pillar h3{margin-top:10px;font-size:1.15rem;color:var(--ink)}
.pillar p{margin-top:12px;font-size:15px;color:var(--muted);flex:1}
.pillar-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  font-size:12.5px;padding:4px 11px;border-radius:999px;
  border:1px solid var(--line);background:#FBFAF7;color:var(--muted);
}
.tag-accent{border-color:rgba(255,138,91,.5);background:var(--orange-wash);color:#C2552A}

/* ============ 对比表 ============ */
.compare-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.table-scroll{overflow-x:auto;border-radius:var(--r-card);border:1px solid var(--line);background:#fff;box-shadow:var(--sh-1)}
.cmp-table{width:100%;min-width:660px;border-collapse:collapse}
.cmp-table th,.cmp-table td{padding:17px 22px;text-align:left;font-size:15px;border-bottom:1px solid var(--line-soft)}
.cmp-table thead th{
  background:#FBF9F6;color:var(--ink);font-size:14px;letter-spacing:.02em;
  border-bottom:1px solid var(--line);
}
.cmp-table thead th:nth-child(3){color:var(--teal-dark)}
.cmp-table tbody th{font-weight:600;color:var(--ink);width:22%}
.cmp-table tbody tr:last-child th,.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody tr:hover{background:#FBF9F6}
.cmp-table td{color:var(--muted)}
.cell-good{color:var(--ink);font-weight:600}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;margin-top:14px}
.flow::before{content:"";position:absolute;top:19px;left:12px;right:12px;height:1px;background:rgba(42,27,78,.16)}
.flow-step{position:relative;padding-top:52px}
.flow-num{
  position:absolute;top:0;left:0;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:14px;font-weight:700;
  background:#fff;border:1px solid var(--line);color:var(--orange);
  box-shadow:var(--sh-1);z-index:2;
}
.flow-step:hover .flow-num{border-color:var(--teal);color:var(--teal-dark)}
.flow-step h3{font-size:1.05rem;color:var(--ink)}
.flow-step p{margin-top:10px;font-size:14.5px;color:var(--muted)}

/* ============ FAQ ============ */
.faq-list{max-width:900px}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:20px 46px 20px 20px;
  font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .18s ease,background-color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;
  background:var(--teal);border-radius:2px;opacity:.85;
}
.faq-item summary::after{
  content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);
  width:24px;height:24px;line-height:22px;text-align:center;border-radius:8px;
  font-family:var(--mono);font-size:16px;color:var(--teal-dark);
  background:var(--teal-wash);transition:transform .25s ease,color .25s ease,background-color .25s ease;
}
.faq-item summary:hover{color:var(--teal-dark);background:#FBFAF7}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);background:rgba(255,138,91,.16);color:#C2552A}
.faq-item .faq-body{padding:0 46px 22px 20px;color:var(--muted);font-size:15.5px}

/* ============ CTA ============ */
.cta{position:relative;overflow:hidden;background:var(--ink);color:#fff}
.cta::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:24px 24px;
}
.cta .container{position:relative;z-index:2;padding-top:74px;padding-bottom:74px}
.cta-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center}
.cta h2{font-size:clamp(1.5rem,2.4vw,1.9rem)}
.cta p{margin-top:16px;color:#CEC7E3;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-note{margin-top:18px;font-size:13px;color:#9C94B8;text-align:right}

/* ============ 页脚 ============ */
.footer{background:var(--ink-deep);color:#B9B2CF;padding:68px 0 26px;position:relative;overflow:hidden}
.footer::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:26px 26px;pointer-events:none;
}
.footer .container{position:relative;z-index:2}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.foot-col h3{font-size:14px;color:#FFFFFF;letter-spacing:.06em;margin-bottom:18px}
.foot-col ul{display:flex;flex-direction:column;gap:11px}
.foot-col a{font-size:14.5px;color:#B9B2CF;transition:color .18s ease}
.foot-col a:hover{color:var(--teal)}
.foot-brand p{margin-top:18px;font-size:14px;color:#8F87AB;max-width:330px}
.foot-meta li{font-size:14px;color:#8F87AB;font-family:var(--mono)}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;color:#7D759B;
}

/* ============ 移动端顶栏与抽屉 ============ */
.mobilebar{
  display:none;position:fixed;top:0;left:0;right:0;height:62px;z-index:70;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:var(--ink-deep);border-bottom:1px solid rgba(255,255,255,.08);
}
.menu-btn{
  width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.14);cursor:pointer;
  transition:background-color .18s ease,border-color .18s ease;
}
.menu-btn:hover{background:rgba(47,211,196,.2);border-color:var(--teal)}
.scrim{position:fixed;inset:0;background:rgba(15,10,32,.55);z-index:55}

/* ============ 状态与骨架 ============ */
.skeleton{background:linear-gradient(90deg,#EFEAE2 25%,#F7F4EF 37%,#EFEAE2 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:8px}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}
.empty{text-align:center;padding:48px 24px;border:1px dashed var(--line);border-radius:var(--r-card);color:var(--faint);background:#FCFAF7}
.empty strong{display:block;color:var(--ink);font-size:16px;margin-bottom:8px}
.notice-error{color:var(--danger);font-size:13px}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .container{padding:0 28px}
}
@media (max-width:1199px){
  .section{padding:80px 0}
  .intro{gap:40px}
  .pillars{gap:20px}
}
@media (max-width:1023px){
  :root{--sidebar:var(--sidebar-narrow)}
  .sidebar{padding:22px 14px 18px;align-items:center}
  .brand-text{display:none}
  .brand{justify-content:center}
  .nav-link{justify-content:center;padding:10px 8px}
  .nav-label{display:none}
  .side-foot .btn{padding:0 10px;font-size:13px}
  .side-note{display:none}
  .flow{grid-template-columns:repeat(2,1fr);row-gap:34px}
  .flow::before{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .pillars{grid-template-columns:1fr}
  .intro{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .cta-note{text-align:left}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .mobilebar{display:flex}
  .sidebar{
    width:270px;align-items:stretch;padding:22px 18px;
    transform:translateX(-100%);transition:transform .3s ease;
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar .brand-text{display:flex}
  .brand{justify-content:flex-start}
  .nav-link{justify-content:flex-start}
  .nav-label{display:inline}
  .side-note{display:block}
  .main{margin-left:0;padding-top:62px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .container{padding:0 18px}
  .hero .container{padding-top:58px;padding-bottom:52px}
  .hero-actions .btn{flex:1 1 100%}
  .stats{grid-template-columns:1fr;gap:16px}
  .flow{grid-template-columns:1fr;row-gap:26px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .faq-item .faq-body{padding-right:24px}
}
@media (max-width:480px){
  body{font-size:15.5px}
  .section{padding:46px 0}
  .sec-head{margin-bottom:34px}
  .stat-num{font-size:1.75rem}
  .hero h1{font-size:1.72rem}
  .hero-trust{flex-direction:column;gap:8px}
  .btn{width:100%;padding:0 16px}
  .cta-actions{width:100%}
  .foot-bottom{flex-direction:column}
}