/* roulang page: index */
:root{
  --ink:#111417;
  --ink-2:#1B2026;
  --cyan:#2AD4B0;
  --cyan-deep:#17A98B;
  --copper:#FF7A45;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --surface-2:#FBFAF7;
  --border:#E5E1DA;
  --text:#17191C;
  --muted:#5E6673;
  --ok:#1FBF8F;
  --warn:#E06B3C;
  --err:#D64545;
  --radius-lg:24px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow:0 1px 2px rgba(17,20,23,.04), 0 12px 32px rgba(17,20,23,.06);
  --shadow-hover:0 16px 40px rgba(17,20,23,.12);
  --nav-w:232px;
  --gap:28px;
  --sec:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius);object-fit:cover}
a{color:inherit;text-decoration:none}
a.link{color:var(--cyan-deep);font-weight:600;box-shadow:inset 0 -2px 0 rgba(42,212,176,.35);transition:box-shadow .18s var(--ease),color .18s var(--ease)}
a.link:hover{color:var(--ink);box-shadow:inset 0 -2px 0 var(--cyan)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em}
h1{font-size:clamp(2.4rem,5vw,4.05rem);font-weight:800;line-height:1.12;letter-spacing:-.03em}
h2{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:750;line-height:1.2}
h3{font-size:clamp(1.125rem,1.4vw,1.5rem);font-weight:700;line-height:1.35}
p{margin:0}
:focus-visible{outline:3px solid rgba(42,212,176,.35);outline-offset:2px;border-radius:6px}

/* ============ 布局骨架 ============ */
.app{display:flex;min-height:100vh}
.sidebar{
  position:fixed;inset:0 auto 0 0;width:var(--nav-w);
  background:linear-gradient(180deg,#111417 0%,#161B21 60%,#101316 100%);
  color:#E9EDF0;display:flex;flex-direction:column;
  padding:26px 18px 20px;z-index:60;border-right:1px solid rgba(255,255,255,.06);
}
.brand{display:flex;gap:12px;align-items:flex-start;padding:4px 6px 22px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-mark{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  background:linear-gradient(140deg,var(--cyan) 0%,#0E8F76 100%);
  color:#08211C;font-weight:800;font-size:19px;display:grid;place-items:center;letter-spacing:-.02em;
}
.brand-text{display:flex;flex-direction:column;gap:4px}
.brand-text strong{font-size:15px;font-weight:800;line-height:1.35;color:#fff;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11.5px;color:#8A939E;letter-spacing:.04em}
.nav{display:flex;flex-direction:column;gap:4px;margin-top:22px;flex:1}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:12px 14px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;color:#A9B2BC;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:14px;color:#7C8794;transition:color .18s var(--ease)}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--cyan);
  transition:transform .2s var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;transform:translateX(2px)}
.nav-item:hover i{color:var(--cyan)}
.nav-item.is-active{background:rgba(42,212,176,.10);color:#fff;font-weight:700}
.nav-item.is-active i{color:var(--cyan)}
.nav-item.is-active::before{transform:translateY(-50%) scaleY(1)}
.sidebar-foot{display:flex;flex-direction:column;gap:12px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08)}
.sidebar-note{font-size:11.5px;line-height:1.6;color:#7C8794}

.content{flex:1;margin-left:var(--nav-w);min-width:0;display:flex;flex-direction:column}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 clamp(20px,3.4vw,48px)}
.section{padding:var(--sec) 0}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan-deep);background:rgba(42,212,176,.10);
  border:1px solid rgba(42,212,176,.25);border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.eyebrow i{font-size:11px}
.lead{font-size:17.5px;line-height:1.85;color:var(--muted);max-width:72ch;margin-top:16px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15.5px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  text-align:center;
}
.btn i{font-size:13px}
.btn-primary{background:var(--ink);color:var(--cyan);box-shadow:var(--shadow)}
.btn-primary:hover{background:var(--cyan);color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-light{background:var(--cyan);color:#08211C;border-color:var(--cyan)}
.btn-light:hover{background:#fff;border-color:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.75}
.btn.is-loading::after{
  content:"";width:14px;height:14px;border-radius:50%;
  border:2px solid currentColor;border-top-color:transparent;animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--surface-2);border:1px solid var(--border);color:var(--muted);
}
.badge.cyan{background:rgba(42,212,176,.12);border-color:rgba(42,212,176,.3);color:#0E8F76}
.badge.copper{background:rgba(255,122,69,.12);border-color:rgba(255,122,69,.3);color:#C45527}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background-image:linear-gradient(100deg,rgba(246,244,239,.97) 0%,rgba(246,244,239,.90) 44%,rgba(246,244,239,.52) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border:1px solid var(--border);box-shadow:var(--shadow);
  padding:clamp(30px,4.4vw,64px);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:clamp(24px,3.4vw,52px);align-items:center}
.hero h1{margin:16px 0 0}
.hero h1 .hl{color:var(--cyan-deep);box-shadow:inset 0 -10px 0 rgba(42,212,176,.18)}
.hero-sub{margin-top:20px;font-size:17.5px;line-height:1.85;color:#3B434D;max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:38px;padding-top:26px;border-top:1px solid var(--border)}
.hero-stat strong{display:block;font-size:26px;font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.2}
.hero-stat span{font-size:13px;color:var(--muted)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3.4;border-radius:20px;box-shadow:var(--shadow-hover)}
.hero-chip{
  position:absolute;left:-14px;bottom:-16px;background:var(--surface);border:1px solid var(--border);
  border-radius:14px;padding:12px 16px;box-shadow:var(--shadow);display:flex;align-items:center;gap:10px;
}
.hero-chip i{color:var(--cyan-deep)}
.hero-chip span{font-size:13px;font-weight:600;color:var(--ink)}

/* ============ 痛点 ============ */
.pain-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.pain-item{
  border-top:2px solid var(--border);padding:26px 4px 0;transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.pain-item:hover{border-color:var(--copper);transform:translateY(-4px)}
.pain-num{font-size:34px;font-weight:800;color:var(--copper);letter-spacing:-.04em;line-height:1}
.pain-item h3{margin:14px 0 10px;font-size:20px}
.pain-item p{color:var(--muted);font-size:15.5px;line-height:1.8}

/* ============ 解决方案 左右分栏 ============ */
.split{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:clamp(28px,4vw,72px)}
.sticky-head{position:sticky;top:36px}
.sticky-head h2{margin-bottom:16px}
.sticky-head p{color:var(--muted)}
.sticky-head img{margin-top:26px;border-radius:var(--radius);box-shadow:var(--shadow)}
.steps{display:flex;flex-direction:column;gap:18px}
.step{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 28px;display:grid;grid-template-columns:64px 1fr;gap:20px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(42,212,176,.5)}
.step-num{font-size:40px;font-weight:800;color:var(--cyan);letter-spacing:-.05em;line-height:.9}
.step h3{font-size:18.5px;margin-bottom:8px}
.step p{color:var(--muted);font-size:15.5px}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ============ 成果 深墨 ============ */
.dark{background:linear-gradient(155deg,#111417 0%,#191F26 55%,#0F1316 100%);color:#E8ECEF;border-radius:var(--radius-lg)}
.dark h2,.dark h3{color:#fff}
.dark .eyebrow{background:rgba(42,212,176,.14);border-color:rgba(42,212,176,.32);color:var(--cyan)}
.dark .lead{color:#A8B2BB}
.result-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:8px}
.result-card{
  border:1px solid rgba(255,255,255,.10);background:rgba(255,255,255,.03);
  border-radius:var(--radius);padding:24px 22px;transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.result-card:hover{border-color:rgba(42,212,176,.45);background:rgba(42,212,176,.06);transform:translateY(-4px)}
.result-card strong{display:block;font-size:38px;font-weight:800;color:var(--cyan);letter-spacing:-.03em;line-height:1.1}
.result-card span{display:block;font-size:13.5px;color:#9AA5AF;margin-top:6px}
.result-card p{margin-top:14px;font-size:14.5px;color:#C3CBD2;line-height:1.7}
.bar{height:6px;border-radius:999px;background:rgba(255,255,255,.10);margin-top:16px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),#7BF0D6)}
.result-note{margin-top:30px;font-size:14px;color:#8E99A3}

/* ============ 证言横滚 ============ */
.rail{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:var(--border);border-radius:999px}
.quote-card{
  flex:0 0 340px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.quote-mark{font-size:44px;font-weight:800;color:var(--cyan);line-height:.8;letter-spacing:-.06em}
.quote-card p{margin-top:14px;font-size:16px;line-height:1.8;color:#333A42}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:22px;padding-top:18px;border-top:1px solid var(--border)}
.avatar{width:44px;height:44px;border-radius:12px;object-fit:cover;background:var(--surface-2)}
.quote-foot b{display:block;font-size:14.5px;color:var(--ink)}
.quote-foot span{font-size:12.5px;color:var(--muted)}

/* ============ 资讯列表 CMS ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.news-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D9D4CB}
.news-thumb{display:block;overflow:hidden;border-radius:0}
.news-thumb img{width:100%;aspect-ratio:16/9.6;border-radius:0;transition:transform .35s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body h3{font-size:18px;line-height:1.45}
.news-body h3 a{transition:color .18s var(--ease)}
.news-body h3 a:hover{color:var(--cyan-deep)}
.news-sum{font-size:15px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--muted)}
.news-meta i{color:var(--cyan-deep);font-size:12px}
.news-more{margin-left:auto;font-weight:700;color:var(--ink);display:inline-flex;align-items:center;gap:6px;transition:color .18s var(--ease),gap .18s var(--ease)}
.news-more:hover{color:var(--cyan-deep);gap:10px}
.empty{
  grid-column:1/-1;border:1.5px dashed var(--border);border-radius:var(--radius);
  background:var(--surface-2);padding:56px 24px;text-align:center;
}
.empty i{font-size:30px;color:var(--cyan-deep);opacity:.8}
.empty p{margin:14px 0 20px;color:var(--muted);font-size:15.5px}

/* ============ FAQ ============ */
.faq{display:grid;grid-template-columns:minmax(0,.62fr) minmax(0,1.38fr);gap:clamp(26px,4vw,64px)}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:0 24px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:#D9D4CB}
.faq-item.open{border-color:var(--cyan);box-shadow:var(--shadow)}
.faq-q{
  width:100%;background:none;border:0;padding:22px 0;display:flex;align-items:center;justify-content:space-between;
  gap:18px;text-align:left;font-size:18px;font-weight:700;color:var(--ink);cursor:pointer;
}
.faq-icon{
  position:relative;flex:0 0 26px;width:26px;height:26px;border-radius:8px;background:var(--surface-2);
  border:1px solid var(--border);transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;transition:background .24s var(--ease)}
.faq-icon::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:12px;transform:translate(-50%,-50%)}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(42,212,176,.16);border-color:var(--cyan)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--cyan-deep)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .24s var(--ease)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{padding:0 0 24px;color:var(--muted);font-size:15.5px;line-height:1.8;max-width:72ch}

/* ============ CTA ============ */
.cta{
  background:linear-gradient(140deg,#111417 0%,#1A222A 60%,#101418 100%);
  border-radius:var(--radius-lg);padding:clamp(34px,4.6vw,64px);
  display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:32px;align-items:center;
}
.cta h2{color:#fff}
.cta p{color:#A9B3BC;margin-top:16px;max-width:60ch}
.cta-actions{display:flex;flex-direction:column;gap:14px}

/* ============ 表单 ============ */
.form-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13.5px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{
  height:48px;border:1px solid var(--border);border-radius:var(--radius-xs);padding:0 14px;
  background:var(--surface-2);transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);background:#fff;box-shadow:0 0 0 4px rgba(42,212,176,.18);
}
.field .hint{font-size:12.5px;color:var(--muted)}
.field.is-error input{border-color:var(--copper);background:rgba(255,122,69,.05)}
.field.is-error .hint{color:var(--warn)}
.field.is-success input{border-color:var(--ok);background:rgba(31,191,143,.05)}
.field.is-success .hint{color:var(--ok)}

/* ============ 页脚 ============ */
footer{background:var(--surface);border-top:1px solid var(--border);margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:32px;padding:64px 0 40px}
.foot-brand{display:flex;gap:12px;align-items:flex-start}
.foot-brand strong{font-size:16px;font-weight:800;color:var(--ink);display:block;line-height:1.4}
.foot-brand p{margin-top:12px;font-size:14px;color:var(--muted);line-height:1.8;max-width:34ch}
footer h4{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:.02em}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14.5px;color:var(--muted);transition:color .18s var(--ease),transform .18s var(--ease)}
.foot-links a:hover{color:var(--cyan-deep);transform:translateX(3px)}
.foot-contact li{font-size:14.5px;color:var(--muted);display:flex;gap:10px;align-items:flex-start;margin-bottom:11px}
.foot-contact i{color:var(--cyan-deep);margin-top:5px;font-size:12.5px}
.foot-bottom{border-top:1px solid var(--border);padding:20px 0 30px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--muted)}

/* ============ 动画 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ============ 移动端顶栏 / 抽屉 ============ */
.topbar-m{display:none}
.drawer{display:none}
@media (max-width:1024px){
  :root{--sec:72px}
  .sidebar{display:none}
  .content{margin-left:0}
  .topbar-m{
    display:flex;align-items:center;justify-content:space-between;
    position:fixed;top:0;left:0;right:0;height:64px;padding:0 18px;
    background:rgba(17,20,23,.96);backdrop-filter:blur(10px);z-index:80;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .topbar-m .m-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:15px}
  .topbar-m .m-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:16px;border-radius:9px}
  .m-toggle{
    width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.06);color:#fff;display:grid;place-items:center;cursor:pointer;
    transition:background .18s var(--ease),border-color .18s var(--ease);
  }
  .m-toggle:hover{background:rgba(42,212,176,.16);border-color:rgba(42,212,176,.4)}
  .drawer{
    display:flex;flex-direction:column;position:fixed;inset:0;z-index:90;
    background:linear-gradient(180deg,#111417,#161B21);color:#E9EDF0;
    padding:22px 22px 26px;transform:translateY(-100%);opacity:0;pointer-events:none;
    transition:transform .28s var(--ease),opacity .28s var(--ease);
  }
  .drawer.open{transform:none;opacity:1;pointer-events:auto}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.1)}
  .drawer-head strong{font-size:16px;font-weight:800;color:#fff}
  .drawer-nav{display:flex;flex-direction:column;margin-top:14px;flex:1}
  .drawer-nav a{
    font-size:20px;font-weight:700;padding:18px 4px;color:#C3CBD2;
    border-bottom:1px solid rgba(255,255,255,.08);
    display:flex;align-items:center;justify-content:space-between;
  }
  .drawer-nav a i{color:var(--cyan);font-size:14px}
  .drawer-nav a.is-active{color:#fff}
  .drawer-foot{padding-top:18px}
  main{padding-top:64px}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{order:-1}
  .hero-visual img{aspect-ratio:16/10}
  .hero-chip{left:12px;bottom:-14px}
  .split{grid-template-columns:1fr}
  .sticky-head{position:static}
  .faq{grid-template-columns:1fr}
  .result-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pain-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta{grid-template-columns:1fr}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
}
@media (max-width:768px){
  :root{--sec:56px;--gap:18px}
  body{font-size:16px}
  h1{font-size:clamp(2rem,8vw,2.8rem)}
  .section{padding:var(--sec) 0}
  .news-grid{grid-template-columns:1fr}
  .news-grid .news-card:first-child{grid-column:auto}
  .result-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .step{grid-template-columns:1fr;gap:12px}
  .step-num{font-size:34px}
  .quote-card{flex:0 0 82%}
  .foot-grid{grid-template-columns:1fr}
  .faq-q{font-size:16.5px}
}
@media (max-width:480px){
  .wrap{padding:0 16px}
  .hero{padding:24px 18px;border-radius:18px}
  .hero-chip{position:static;margin-top:14px;left:auto;bottom:auto}
  .hero-stats{gap:18px}
  .hero-stat strong{font-size:22px}
  .news-body,.form-card{padding:20px}
}

/* roulang page: article */
/* ===================== 设计变量 ===================== */
:root{
  --ink:#111417;
  --ink-soft:#1b2026;
  --cyan:#2AD4B0;
  --cyan-soft:rgba(42,212,176,.14);
  --cyan-line:rgba(42,212,176,.35);
  --copper:#FF7A45;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --border:#E5E1DA;
  --text:#17191C;
  --muted:#5E6673;
  --ok:#1FBF8F;
  --warn:#E06B3C;
  --err:#D64545;
  --r-card:16px;
  --r-card-lg:18px;
  --r-btn:12px;
  --r-input:10px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(17,20,23,.04), 0 12px 32px rgba(17,20,23,.06);
  --shadow-lg:0 16px 40px rgba(17,20,23,.12);
  --sidebar-w:232px;
  --topbar-h:64px;
  --maxw:1180px;
  --sec:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ===================== Reset / Base ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-radius:12px;object-fit:cover}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),opacity .18s var(--ease)}
a:hover{color:var(--cyan)}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;color:var(--ink)}
h1{font-size:clamp(2.4rem,5vw,4.2rem);font-weight:800;line-height:1.12;letter-spacing:-.03em}
h2{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:750;line-height:1.2}
h3{font-size:clamp(1.1rem,1.5vw,1.4rem);font-weight:700;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:3px solid var(--cyan-line);outline-offset:2px;border-radius:6px}
::selection{background:var(--cyan);color:var(--ink)}

/* ===================== 布局容器 ===================== */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--ink);color:var(--cyan);padding:12px 18px;border-radius:0 0 var(--r-btn) 0;
}
.skip-link:focus{left:0}

/* ===================== 顶部进度条 ===================== */
.progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--cyan),var(--copper));
  transition:width .12s linear;
}

/* ===================== 移动端顶部栏 ===================== */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:var(--topbar-h);z-index:90;
  background:rgba(13,16,19,.96);
  backdrop-filter:blur(10px);
  align-items:center;justify-content:space-between;
  padding:0 18px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-weight:700;font-size:15px;letter-spacing:.01em;
}
.topbar-brand:hover{color:var(--cyan)}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--cyan),#1aa98c);
  color:var(--ink);font-weight:800;font-size:17px;
}
.menu-btn{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:18px;
  border:1px solid rgba(255,255,255,.16);
  transition:background .18s var(--ease),border-color .18s var(--ease);
}
.menu-btn:hover{background:rgba(42,212,176,.14);border-color:var(--cyan-line)}

/* ===================== 左侧竖向导航 ===================== */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:100;
  background:#0d1013;
  border-right:1px solid rgba(255,255,255,.07);
  display:flex;flex-direction:column;
  padding:28px 18px 22px;
  overflow-y:auto;
}
.side-brand{display:flex;align-items:flex-start;gap:11px;padding:0 6px 22px;border-bottom:1px solid rgba(255,255,255,.07)}
.side-brand .brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;font-size:19px}
.side-brand strong{display:block;color:#fff;font-size:15px;font-weight:700;line-height:1.35;letter-spacing:.01em}
.side-brand span.sub{display:block;color:rgba(255,255,255,.42);font-size:11.5px;letter-spacing:.14em;margin-top:5px}
.nav{display:flex;flex-direction:column;gap:4px;margin-top:22px}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:11px;
  padding:12px 13px;border-radius:12px;
  color:rgba(255,255,255,.68);font-size:14.5px;font-weight:500;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:14px;color:rgba(255,255,255,.42);transition:color .18s var(--ease)}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item:hover i{color:var(--cyan)}
.nav-item.is-active{background:rgba(42,212,176,.1);color:#fff;font-weight:600}
.nav-item.is-active i{color:var(--cyan)}
.nav-item.is-active::before{
  content:"";position:absolute;left:-18px;top:11px;bottom:11px;width:3px;
  border-radius:0 3px 3px 0;background:var(--cyan);
}
.side-foot{margin-top:auto;padding-top:26px}
.side-note{color:rgba(255,255,255,.38);font-size:12px;line-height:1.7;margin-top:14px;padding:0 4px}
.scrim{
  display:none;position:fixed;inset:0;z-index:95;
  background:rgba(8,10,12,.6);backdrop-filter:blur(2px);
}
.scrim.is-open{display:block}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--cyan);box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--cyan);color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-light{background:var(--cyan);color:var(--ink)}
.btn-light:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-block{width:100%}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none}
.btn.is-loading{position:relative;color:transparent!important}
.btn.is-loading::after{
  content:"";position:absolute;width:18px;height:18px;border-radius:50%;
  border:2px solid rgba(42,212,176,.35);border-top-color:var(--cyan);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:14.5px;color:var(--ink);
  border-bottom:1px solid var(--cyan-line);padding-bottom:2px;
}
.link-arrow:hover{color:var(--cyan)}

/* ===================== 主内容区 ===================== */
.shell{margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-height:100vh}
main{flex:1 1 auto}

/* ===================== 面包屑 + 文章头 ===================== */
.article-hero{
  position:relative;
  padding:64px 0 46px;
  background-image:linear-gradient(180deg,rgba(246,244,239,.92),rgba(246,244,239,.98)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted);font-weight:500}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{color:#C9C4BA}
.crumbs .current{color:#9AA1AA;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:var(--surface);border:1px solid var(--border);color:var(--muted);
}
.tag-cyan{background:var(--cyan-soft);border-color:var(--cyan-line);color:#12806A}
.tag-copper{background:rgba(255,122,69,.12);border-color:rgba(255,122,69,.35);color:#B84D1F}
.article-hero h1{max-width:22ch;margin-bottom:20px}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--cyan);font-size:13px}

/* ===================== 正文阅读区 ===================== */
.section-article{padding:56px 0 0}
.article-card{
  width:100%;max-width:860px;margin:0 auto;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-card-lg);
  padding:52px;
  box-shadow:var(--shadow-sm);
}
.article-body{font-size:17px;line-height:1.85;color:#23262B}
.article-body > * + *{margin-top:1.2em}
.article-body p{margin:0}
.article-body h2{
  position:relative;font-size:clamp(1.35rem,2.1vw,1.7rem);font-weight:750;
  line-height:1.3;margin-top:2em;padding-left:16px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.24em;width:4px;border-radius:3px;background:var(--cyan);
}
.article-body h3{font-size:1.15rem;font-weight:700;margin-top:1.7em;color:var(--ink)}
.article-body h4{font-size:1.02rem;font-weight:700;margin-top:1.4em;color:var(--ink)}
.article-body ul,.article-body ol{padding-left:1.4em}
.article-body li{line-height:1.8;margin:.4em 0}
.article-body li::marker{color:var(--cyan)}
.article-body blockquote{
  margin:1.6em 0;padding:6px 0 6px 18px;
  border-left:3px solid var(--cyan);
  color:#40454D;background:linear-gradient(90deg,rgba(42,212,176,.07),transparent 70%);
  border-radius:0 8px 8px 0;
}
.article-body a{color:#12806A;font-weight:600;border-bottom:1px solid var(--cyan-line)}
.article-body a:hover{color:var(--cyan)}
.article-body img{margin:1.6em auto;border-radius:12px;box-shadow:var(--shadow-sm)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;line-height:1.7}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;border:1px solid var(--border);border-radius:12px;overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--border);text-align:left}
.article-body th{background:#FAF9F6;font-weight:700;color:var(--ink)}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  background:#F1EFE9;border:1px solid var(--border);border-radius:6px;
  padding:2px 6px;font-size:.9em;
}
.article-body strong{color:var(--ink);font-weight:700}

/* 正文下方提示 */
.notice{
  width:100%;max-width:860px;margin:24px auto 0;
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 24px;border-radius:var(--r-card);
  background:var(--surface);border:1px dashed #D9D3C8;
}
.notice i{color:var(--copper);font-size:18px;margin-top:3px}
.notice p{font-size:14.5px;color:var(--muted);line-height:1.75}
.notice strong{color:var(--ink)}

/* 空态 */
.empty-state{
  max-width:860px;margin:0 auto;text-align:center;
  padding:60px 28px;border:1px dashed #D9D3C8;border-radius:var(--r-card);
  background:#FCFBF8;
}
.empty-state .empty-icon{
  width:60px;height:60px;margin:0 auto 18px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--cyan-soft);color:#12806A;font-size:24px;
}
.empty-state h3{margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ===================== 通用板块 ===================== */
.section{padding:var(--sec) 0 0}
.section-head{max-width:760px;margin-bottom:38px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:#12806A;margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--cyan);border-radius:2px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px}

/* ===================== 相关推荐 ===================== */
.reco-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D8D2C6}
.card-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDEAE3}
.card-thumb img{width:100%;height:100%;border-radius:0;transition:transform .4s var(--ease)}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.card-body h3{margin-bottom:10px;font-size:1.05rem}
.card-body h3 a:hover{color:var(--cyan)}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.75;margin-bottom:18px}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:#8A929C;padding-top:14px;border-top:1px solid var(--border);
}
.card-meta .cat{color:#12806A;font-weight:600}

/* ===================== FAQ ===================== */
.faq-list{max-width:860px;border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--border);transition:border-color .2s var(--ease)}
.faq-item.is-open{border-color:var(--cyan-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;text-align:left;
  font-size:17.5px;font-weight:700;color:var(--ink);
  transition:color .18s var(--ease);
}
.faq-q:hover{color:#12806A}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#F1EFE9;color:var(--ink);font-size:13px;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--cyan);color:var(--ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a p{padding:0 4px 24px;max-width:720px;color:var(--muted);font-size:15.5px;line-height:1.8}

/* ===================== CTA ===================== */
.cta-block{
  margin-top:var(--sec);
  background:var(--ink);color:#fff;border-radius:24px;
  padding:60px 56px;position:relative;overflow:hidden;
}
.cta-block::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(42,212,176,.22),transparent 68%);
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:36px;align-items:center;justify-content:space-between}
.cta-text{max-width:640px}
.cta-text .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;margin-bottom:16px}
.cta-text .eyebrow::before{content:"";width:22px;height:2px;background:var(--cyan);border-radius:2px}
.cta-text h2{color:#fff;margin-bottom:14px}
.cta-text p{color:rgba(255,255,255,.66);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ===================== 页脚 ===================== */
footer{
  margin-top:var(--sec);
  background:#0d1013;color:rgba(255,255,255,.62);
  padding:64px 0 30px;
  border-top:1px solid rgba(255,255,255,.07);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand{display:flex;gap:12px;align-items:flex-start}
.foot-brand .brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;font-size:19px}
.foot-brand strong{display:block;color:#fff;font-size:15.5px;font-weight:700;margin-bottom:10px}
.foot-brand p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.45);max-width:34ch}
footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.6)}
.foot-links a:hover{color:var(--cyan)}
.foot-contact{list-style:none;display:flex;flex-direction:column;gap:12px}
.foot-contact li{display:flex;gap:10px;font-size:13.5px;color:rgba(255,255,255,.55);line-height:1.7}
.foot-contact i{color:var(--cyan);margin-top:4px}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.38);
}

/* ===================== 动效 ===================== */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.fade-up.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .fade-up{opacity:1;transform:none}
}

/* ===================== 响应式 ===================== */
@media (max-width:1200px){
  :root{--sec:80px}
  .reco-grid{grid-template-columns:repeat(2,1fr)}
  .article-card{padding:44px}
}
@media (max-width:1024px){
  :root{--sec:72px}
  .topbar{display:flex}
  .sidebar{
    width:100%;max-width:100%;
    transform:translateX(-100%);
    transition:transform .28s var(--ease);
    padding-top:24px;
  }
  .sidebar.is-open{transform:none}
  .nav-item{padding:16px 14px;font-size:17px}
  .nav-item.is-active::before{left:-18px}
  .side-brand{padding-bottom:20px}
  .shell{margin-left:0;padding-top:var(--topbar-h)}
  .article-hero{padding:44px 0 36px}
  .cta-block{padding:48px 36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  :root{--sec:56px}
  body{font-size:16px}
  .wrap{padding:0 20px}
  h1{font-size:clamp(2rem,8vw,2.8rem)}
  .article-card{padding:26px 22px;border-radius:16px}
  .article-body{font-size:16px}
  .crumbs .current{white-space:normal;max-width:100%}
  .reco-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:16.5px;padding:18px 2px}
}
@media (max-width:480px){
  .wrap{padding:0 16px}
  .article-card{padding:22px 18px}
  .article-hero{padding:34px 0 28px}
  .cta-block{padding:36px 22px;border-radius:18px}
  .btn{height:46px;padding:0 18px}
  .notice{padding:16px 18px}
  .card-body{padding:18px}
}

/* roulang page: category1 */
:root{
  --ink:#111417;
  --ink-soft:#1B2026;
  --cyan:#2AD4B0;
  --cyan-deep:#17A88A;
  --orange:#FF7A45;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E5E1DA;
  --text:#17191C;
  --muted:#5E6673;
  --ok:#1FBF8F;
  --warn:#E06B3C;
  --err:#D64545;
  --r-card:16px;
  --r-lg:24px;
  --r-btn:12px;
  --r-input:10px;
  --sh:0 1px 2px rgba(17,20,23,.04),0 12px 32px rgba(17,20,23,.06);
  --sh-hover:0 16px 40px rgba(17,20,23,.12);
  --nav-w:236px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border-radius:var(--r-card);object-fit:cover}
a{color:var(--cyan-deep);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--cyan)}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(42,212,176,.35);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:99}
.skip:focus{left:0;color:#fff}

/* ============ 顶部移动导航 ============ */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:64px;z-index:60;
  background:rgba(17,20,23,.96);
  backdrop-filter:blur(10px);
  align-items:center;justify-content:space-between;
  padding:0 18px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:15px;letter-spacing:-.01em}
.topbar-brand .brand-mark{width:32px;height:32px;font-size:15px}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.04);color:#fff;font-size:17px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:background .18s var(--ease),border-color .18s var(--ease);
}
.burger:hover{background:rgba(42,212,176,.16);border-color:rgba(42,212,176,.5)}
.mask{position:fixed;inset:0;background:rgba(9,11,13,.55);z-index:55;opacity:0;pointer-events:none;transition:opacity .24s var(--ease)}
.mask.is-open{opacity:1;pointer-events:auto}

/* ============ 左侧导航 ============ */
.sidenav{
  position:fixed;top:0;left:0;width:var(--nav-w);height:100vh;z-index:70;
  background:var(--ink);color:#fff;
  display:flex;flex-direction:column;
  padding:28px 20px 22px;
  border-right:1px solid rgba(255,255,255,.06);
  overflow-y:auto;
}
.brand{display:flex;align-items:flex-start;gap:12px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-mark{
  flex:0 0 auto;width:40px;height:40px;border-radius:13px;
  background:linear-gradient(140deg,var(--cyan),#1FA98C);
  color:#05221C;font-weight:900;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(42,212,176,.28);
}
.brand-text strong{display:block;font-size:16px;font-weight:800;line-height:1.35;color:#fff;letter-spacing:-.01em}
.brand-text span{display:block;margin-top:5px;font-size:12px;color:rgba(255,255,255,.52);letter-spacing:.04em}
.nav{display:flex;flex-direction:column;gap:4px;margin-top:26px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:12px 14px 12px 16px;border-radius:12px;
  color:rgba(255,255,255,.72);font-size:15px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:14px;opacity:.85}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--cyan);
  transition:transform .２s var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.is-active{background:rgba(42,212,176,.12);color:#fff}
.nav-item.is-active::before{transform:translateY(-50%) scaleY(1)}
.nav-item.is-active i{color:var(--cyan);opacity:1}
.sidenav-foot{margin-top:auto;padding-top:26px;display:flex;flex-direction:column;gap:14px}
.sidenav-note{font-size:12px;line-height:1.7;color:rgba(255,255,255,.44)}

/* ============ 主体 ============ */
.main{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 44px}

.breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin:34px 0 22px;font-size:13.5px;color:var(--muted)}
.breadcrumb a{color:var(--muted);font-weight:600}
.breadcrumb a:hover{color:var(--cyan-deep)}
.breadcrumb .sep{color:#C6C1B8}
.breadcrumb .cur{color:#9AA1AB}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15.5px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--cyan);box-shadow:0 6px 18px rgba(17,20,23,.18)}
.btn-primary:hover{background:var(--cyan);color:#06231D;transform:translateY(-2px);box-shadow:0 12px 26px rgba(42,212,176,.28)}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(17,20,23,.28)}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px)}
.btn-block{width:100%}
.btn.on-dark{background:var(--cyan);color:#06231D}
.btn.on-dark:hover{background:#4CE3C4;color:#06231D}
.btn-ghost.on-dark{color:#fff;border-color:rgba(255,255,255,.34)}
.btn-ghost.on-dark:hover{background:#fff;color:var(--ink);border-color:#fff}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--surface);box-shadow:var(--sh)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(246,244,239,.94),rgba(246,244,239,.82)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(42,212,176,.22),rgba(42,212,176,0) 68%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;padding:58px 56px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:rgba(42,212,176,.14);
  color:#0E7A63;font-size:13px;font-weight:700;letter-spacing:.04em;
}
.hero h1{margin-top:20px;font-size:clamp(2.1rem,3.6vw,3.2rem);font-weight:800;line-height:1.16;letter-spacing:-.03em;color:var(--ink)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--muted);max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.78);
  font-size:13px;font-weight:600;color:#41474F;
}
.tag i{color:var(--cyan-deep);font-size:12px}
.hero-art{position:relative}
.hero-art img{width:100%;height:340px;border-radius:var(--r-card);box-shadow:var(--sh-hover)}
.hero-art .art-badge{
  position:absolute;left:18px;bottom:18px;
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:14px;background:rgba(17,20,23,.9);color:#fff;
  font-size:13px;font-weight:700;backdrop-filter:blur(6px);
}
.hero-art .art-badge i{color:var(--cyan)}

/* ============ 板块 ============ */
.section{padding:96px 0 0}
.section-head{max-width:720px;margin-bottom:42px}
.section-title{margin-top:14px;font-size:clamp(1.7rem,2.6vw,2.35rem);font-weight:800;line-height:1.24;letter-spacing:-.025em;color:var(--ink)}
.section-sub{margin-top:16px;color:var(--muted);font-size:16.5px;line-height:1.8}

/* ============ 左图右文 ============ */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:start}
.split-media img{width:100%;height:420px;box-shadow:var(--sh)}
.split-media figcaption{margin-top:12px;font-size:13px;color:#9AA1AB;line-height:1.6}
.split-body h3{font-size:24px;font-weight:800;line-height:1.35;letter-spacing:-.02em;color:var(--ink)}
.split-body p{margin-top:18px;color:#3D444D;line-height:1.85}
.check-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.check-list li{display:flex;gap:14px;align-items:flex-start;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);box-shadow:var(--sh);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.check-list li:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.check-list i{color:var(--cyan-deep);font-size:16px;margin-top:2px}
.check-list strong{display:block;font-size:15.5px;font-weight:800;color:var(--ink);margin-bottom:4px}
.check-list span{font-size:14.5px;color:var(--muted);line-height:1.7}

/* ============ 双列卡片 ============ */
.cards-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  padding:28px;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D8D2C8}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}
.card-ico{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(42,212,176,.13);color:#0E7A63;font-size:17px;
}
.chip{padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(255,122,69,.12);color:#B24A1E;letter-spacing:.02em}
.chip.neutral{background:rgba(17,20,23,.06);color:#5E6673}
.card h3{font-size:19px;font-weight:800;line-height:1.4;color:var(--ink);letter-spacing:-.01em}
.card p{margin-top:11px;font-size:15px;line-height:1.78;color:var(--muted);flex:1}
.card-meta{display:flex;align-items:center;gap:14px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:#9AA1AB;font-weight:600}
.card-meta .link{color:var(--cyan-deep);font-weight:700}
.card-meta .link:hover{color:var(--cyan)}

/* ============ 步骤轴 ============ */
.steps{margin-top:12px;border-left:2px solid var(--line);padding-left:0;display:flex;flex-direction:column;gap:8px}
.step{position:relative;display:grid;grid-template-columns:88px 1fr;gap:24px;padding:26px 28px 26px 34px;border-radius:var(--r-card);transition:background .2s var(--ease)}
.step:hover{background:rgba(255,255,255,.72)}
.step::before{
  content:"";position:absolute;left:-45px;top:38px;width:11px;height:11px;border-radius:50%;
  background:var(--surface);border:3px solid var(--cyan);box-shadow:0 0 0 4px rgba(42,212,176,.16);
}
.step-num{font-family:Inter,"Noto Sans SC",sans-serif;font-size:38px;font-weight:800;line-height:1;color:var(--cyan);letter-spacing:-.04em}
.step-body h3{font-size:19px;font-weight:800;color:var(--ink);line-height:1.4}
.step-body p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.8}

/* ============ 数据块 ============ */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px}
.stat{
  padding:26px 26px 24px;border-radius:var(--r-card);
  background:var(--ink);color:#fff;border:1px solid rgba(255,255,255,.08);
  display:flex;flex-direction:column;gap:8px;
}
.stat .num{font-family:Inter,sans-serif;font-size:32px;font-weight:800;color:var(--cyan);letter-spacing:-.03em;line-height:1}
.stat .label{font-size:14.5px;font-weight:700;color:rgba(255,255,255,.9)}
.stat .desc{font-size:13.5px;color:rgba(255,255,255,.56);line-height:1.7}
.bar{height:6px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden;margin-top:8px}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),#4CE3C4)}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);box-shadow:var(--sh);transition:border-color .24s var(--ease),box-shadow .24s var(--ease)}
.faq-item.is-open{border-color:var(--cyan);box-shadow:0 12px 32px rgba(42,212,176,.14)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:800;color:var(--ink);line-height:1.5;
}
.faq-icon{
  flex:0 0 auto;width:32px;height:32px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink);
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--cyan);border-color:var(--cyan);color:#06231D}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{padding:0 26px 24px;max-width:720px;color:var(--muted);font-size:15.5px;line-height:1.82}

/* ============ CTA ============ */
.cta-band{margin-top:96px;position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--ink);color:#fff;padding:64px 56px}
.cta-band::after{
  content:"";position:absolute;right:-140px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(42,212,176,.26),rgba(42,212,176,0) 66%);
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.cta-band h2{font-size:clamp(1.7rem,2.6vw,2.3rem);font-weight:800;line-height:1.24;letter-spacing:-.025em}
.cta-band p{margin-top:16px;color:rgba(255,255,255,.68);font-size:16px;line-height:1.82;max-width:52ch}
.cta-actions{display:flex;flex-direction:column;gap:14px}

/* ============ 页脚 ============ */
footer{margin-top:96px;background:var(--ink);color:#fff;padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px}
.foot-brand{display:flex;gap:14px;align-items:flex-start}
.foot-brand .brand-mark{width:42px;height:42px;font-size:19px}
.foot-brand strong{display:block;font-size:16.5px;font-weight:800;color:#fff;line-height:1.4}
.foot-brand p{margin-top:10px;font-size:13.5px;line-height:1.78;color:rgba(255,255,255,.55);max-width:34ch}
footer h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.04em;margin-bottom:18px}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14.5px;color:rgba(255,255,255,.66);font-weight:600}
.foot-links a:hover{color:var(--cyan)}
.foot-contact{display:flex;flex-direction:column;gap:12px}
.foot-contact li{display:flex;gap:11px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.62);line-height:1.7}
.foot-contact i{color:var(--cyan);margin-top:4px;font-size:13px}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(255,255,255,.46);
}

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

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .wrap{padding:0 32px}
  .hero-inner{grid-template-columns:1fr;gap:38px;padding:48px 40px}
  .hero-art img{height:280px}
  .split{grid-template-columns:1fr;gap:36px}
  .split-media img{height:340px}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:1024px){
  :root{--nav-w:0px}
  .topbar{display:flex}
  .sidenav{
    width:288px;transform:translateX(-100%);
    transition:transform .28s var(--ease);
    padding-top:24px;
  }
  .sidenav.is-open{transform:translateX(0)}
  .main{margin-left:0;padding-top:64px}
  .wrap{padding:0 22px}
  .section{padding-top:72px}
  .cta-band{margin-top:72px;padding:48px 32px}
  footer{margin-top:72px}
  .nav-item{font-size:16px;padding:15px 16px}
}
@media (max-width:768px){
  body{font-size:16px}
  .cards-2{grid-template-columns:1fr;gap:18px}
  .stats{grid-template-columns:1fr;gap:16px}
  .step{grid-template-columns:1fr;gap:10px;padding:20px 18px 20px 24px}
  .step::before{left:-35px;top:30px}
  .steps{padding-left:14px}
  .hero-inner{padding:36px 24px}
  .hero-art img{height:220px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-actions{flex-direction:column}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .faq-q{font-size:16.5px;padding:19px 20px}
  .faq-a-inner{padding:0 20px 20px}
  .cta-band{padding:40px 22px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:480px){
  .wrap{padding:0 16px}
  .hero h1{font-size:clamp(1.75rem,7.5vw,2.3rem)}
  .hero-sub{font-size:15.5px}
  .card{padding:22px}
  .section{padding-top:56px}
  .topbar-brand span.full{display:none}
  .breadcrumb{font-size:12.5px;margin:22px 0 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#111417;
  --ink-2:#17191C;
  --cyan:#2AD4B0;
  --cyan-deep:#1FBF8F;
  --copper:#FF7A45;
  --bg:#F6F4EF;
  --paper:#FFFFFF;
  --line:#E5E1DA;
  --text:#17191C;
  --muted:#5E6673;
  --soft:#8A929C;
  --warn:#E06B3C;
  --err:#D64545;
  --ok:#1FBF8F;
  --r-lg:18px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --sh-1:0 1px 2px rgba(17,20,23,.04), 0 12px 32px rgba(17,20,23,.06);
  --sh-2:0 16px 40px rgba(17,20,23,.12);
  --side:232px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-left:var(--side);
  background:var(--bg);
  color:var(--text);
  font-family:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);object-fit:cover}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(42,212,176,.35);outline-offset:2px;border-radius:6px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{max-width:1280px;margin:0 auto;padding:0 40px}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side);
  background:var(--ink);color:#fff;
  padding:26px 18px 22px;
  display:flex;flex-direction:column;gap:26px;
  z-index:70;overflow-y:auto;
}
.brand{display:flex;gap:12px;align-items:center;color:#fff}
.brand-mark{
  width:42px;height:42px;flex:none;border-radius:13px;
  background:linear-gradient(135deg,var(--cyan),var(--cyan-deep));
  color:var(--ink);display:grid;place-items:center;
  font-size:20px;font-weight:800;
}
.brand-text strong{display:block;font-size:14.5px;font-weight:700;line-height:1.32;letter-spacing:-.01em}
.brand-text em{font-style:normal;display:block;font-size:11.5px;color:var(--soft);letter-spacing:.04em;margin-top:3px}
.nav{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:12px 14px;border-radius:var(--r-sm);
  color:#B9C0C8;font-size:15px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:14.5px;color:#7C858F;transition:color .18s var(--ease)}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;transform:translateX(2px)}
.nav-item:hover i{color:var(--cyan)}
.nav-item.is-active{background:rgba(42,212,176,.12);color:#fff}
.nav-item.is-active i{color:var(--cyan)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:99px;background:var(--cyan);
}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.side-note{font-size:12px;color:var(--soft);line-height:1.6}
.side-tip{
  border:1px solid rgba(255,255,255,.1);border-radius:var(--r-sm);
  padding:12px 14px;font-size:12.5px;color:#A9B1BA;line-height:1.6;
}
.side-tip strong{color:var(--cyan);display:block;font-size:13px;margin-bottom:4px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--cyan)}
.btn-primary:hover{background:var(--cyan);color:var(--ink);box-shadow:0 10px 26px rgba(42,212,176,.28);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-light{background:var(--cyan);color:var(--ink)}
.btn-light:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;
  background:rgba(17,20,23,.96);backdrop-filter:blur(10px);
  align-items:center;justify-content:space-between;
  padding:0 18px;z-index:80;
}
.topbar .brand-mark{width:36px;height:36px;font-size:17px;border-radius:11px}
.topbar .brand-text strong{font-size:13.5px}
.topbar .brand-text em{display:none}
.menu-btn{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  color:#fff;background:rgba(255,255,255,.08);font-size:17px;
  transition:background .18s var(--ease);
}
.menu-btn:hover{background:rgba(255,255,255,.16)}
.scrim{
  position:fixed;inset:0;background:rgba(17,20,23,.55);
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s;z-index:65;
}
.scrim.is-open{opacity:1;visibility:visible}

/* ---------- 通用板块 ---------- */
main{display:block}
section{padding:96px 0}
.sec-head{max-width:760px;margin-bottom:48px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--cyan-deep);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--cyan);border-radius:99px}
.sec-head h2{font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.2;font-weight:750;letter-spacing:-.025em}
.sec-head p{margin-top:16px;color:var(--muted);font-size:16.5px;line-height:1.78}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:#EFF6F3;color:#1B8E77;border:1px solid #D5EAE3;
}
.tag-copper{background:#FFF1EA;color:#C25A2C;border-color:#FADCCD}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:64px 0 80px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center right;
  opacity:.14;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,#F6F4EF 8%,rgba(246,244,239,.86) 48%,rgba(246,244,239,.55) 100%);
}
.page-hero .wrap{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);font-weight:500;margin-bottom:26px}
.crumb a{color:var(--muted);transition:color .18s var(--ease)}
.crumb a:hover{color:var(--cyan-deep);text-decoration:underline;text-underline-offset:4px}
.crumb .sep{color:#C3C7CC}
.crumb .cur{color:#8A929C}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.page-hero h1{
  font-size:clamp(2.1rem,4vw,3.4rem);
  line-height:1.14;font-weight:800;letter-spacing:-.03em;
}
.page-hero h1 span{color:var(--cyan-deep)}
.hero-lead{margin-top:22px;font-size:17.5px;line-height:1.8;color:var(--muted);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.fact strong{display:block;font-size:24px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.fact span{font-size:13px;color:var(--muted)}
.hero-media{position:relative}
.hero-media img{
  width:100%;height:400px;border-radius:var(--r-lg);
  box-shadow:var(--sh-1);border:1px solid var(--line);
}
.hero-badge{
  position:absolute;left:-18px;bottom:26px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:14px 18px;display:flex;align-items:center;gap:12px;
}
.hero-badge i{color:var(--cyan-deep);font-size:18px}
.hero-badge b{display:block;font-size:14px;color:var(--ink)}
.hero-badge small{font-size:12px;color:var(--muted)}

/* ---------- 概览卡 ---------- */
.overview{background:var(--paper);border-bottom:1px solid var(--line)}
.ov-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ov-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);
  padding:30px 26px;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.ov-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE9E1}
.ov-num{font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--cyan-deep)}
.ov-card h3{font-size:20px;margin-top:14px;letter-spacing:-.02em}
.ov-card p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.78}
.ov-list{margin-top:18px;display:flex;flex-direction:column;gap:9px}
.ov-list li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);line-height:1.7}
.ov-list li i{color:var(--cyan-deep);font-size:12px;margin-top:7px}

/* ---------- 时间线/步骤轴 ---------- */
.steps{background:var(--bg)}
.timeline{position:relative;max-width:980px}
.tl-item{position:relative;display:grid;grid-template-columns:66px 1fr;gap:26px;padding-bottom:36px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:32px;top:70px;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--cyan) 0%,#DCE7E3 100%);
}
.tl-item:last-child::before{display:none}
.tl-dot{
  width:66px;height:66px;border-radius:20px;flex:none;
  background:var(--paper);border:1px solid var(--line);
  display:grid;place-items:center;position:relative;z-index:2;
  font-size:20px;font-weight:800;color:var(--ink);letter-spacing:-.03em;
  box-shadow:var(--sh-1);
}
.tl-item:hover .tl-dot{border-color:var(--cyan);color:var(--cyan-deep)}
.tl-body{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 28px;transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.tl-body h3{font-size:20px;letter-spacing:-.02em}
.tl-body p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.78}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}

/* ---------- 检查清单 ---------- */
.checklist{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cl-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.cl-card{
  display:flex;gap:20px;
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 26px;background:var(--bg);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.cl-card:hover{border-color:#CFE9E1;box-shadow:var(--sh-1);transform:translateY(-3px)}
.cl-icon{
  width:46px;height:46px;flex:none;border-radius:14px;
  display:grid;place-items:center;font-size:17px;
  background:rgba(42,212,176,.14);color:#1B8E77;
}
.cl-card h3{font-size:18px;letter-spacing:-.015em}
.cl-card p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.76}
.cl-card .tag{margin-top:14px}

/* ---------- 图文说明 ---------- */
.note{background:var(--bg)}
.note-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:center}
.note-grid img{width:100%;height:360px;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1)}
.note-list{display:flex;flex-direction:column;gap:18px;margin-top:28px}
.note-list li{
  display:flex;gap:14px;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:18px 20px;font-size:15.5px;color:var(--muted);line-height:1.72;
}
.note-list li i{color:var(--copper);font-size:15px;margin-top:5px}
.note-list li b{color:var(--ink)}

/* ---------- FAQ ---------- */
.faq{background:var(--paper);border-top:1px solid var(--line)}
.faq-list{max-width:900px;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--paper);overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:#CFE9E1}
.faq-item.is-open{border-color:var(--cyan);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;text-align:left;
  font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.015em;
}
.faq-icon{
  width:32px;height:32px;flex:none;border-radius:50%;
  display:grid;place-items:center;font-size:13px;
  background:var(--bg);color:var(--ink);
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--cyan);color:var(--ink)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .24s var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a>div{overflow:hidden}
.faq-a p{padding:0 76px 24px 26px;color:var(--muted);font-size:15.8px;line-height:1.78}

/* ---------- CTA ---------- */
.cta{padding:0 0 96px}
.cta-box{
  position:relative;overflow:hidden;
  background:var(--ink);border-radius:24px;
  padding:64px 56px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.cta-box::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(42,212,176,.22),transparent 66%);
}
.cta-box h2{color:#fff;font-size:clamp(1.8rem,3vw,2.5rem);line-height:1.2;position:relative;z-index:2}
.cta-box p{color:#B9C0C8;margin-top:16px;font-size:16.5px;line-height:1.8;position:relative;z-index:2;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;position:relative;z-index:2}
.cta-side{position:relative;z-index:2;display:flex;flex-direction:column;gap:14px}
.cta-item{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-sm);padding:16px 18px;
}
.cta-item i{color:var(--cyan);font-size:16px;margin-top:4px}
.cta-item b{display:block;color:#fff;font-size:15px;font-weight:700}
.cta-item span{font-size:13.5px;color:#A9B1BA;line-height:1.65}

/* ---------- 页脚 ---------- */
footer{background:var(--ink);color:#B9C0C8;padding:64px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px}
.foot-brand{display:flex;gap:14px;align-items:flex-start}
.foot-brand strong{color:#fff;font-size:15.5px;display:block;font-weight:700}
.foot-brand p{margin-top:10px;font-size:13.5px;color:#8A929C;line-height:1.72;max-width:340px}
footer h4{font-size:14px;color:#fff;font-weight:700;margin:0 0 18px;letter-spacing:.02em}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14.5px;color:#B9C0C8;transition:color .18s var(--ease),transform .18s var(--ease);width:fit-content}
.foot-links a:hover{color:var(--cyan);transform:translateX(2px)}
.foot-contact{display:flex;flex-direction:column;gap:12px}
.foot-contact li{display:flex;gap:11px;font-size:14px;color:#B9C0C8;line-height:1.65}
.foot-contact i{color:var(--cyan);font-size:13px;margin-top:6px}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C858F;
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:.04s}
.reveal:nth-child(3){transition-delay:.08s}
.reveal:nth-child(4){transition-delay:.12s}
.reveal:nth-child(5){transition-delay:.16s}
.reveal:nth-child(6){transition-delay:.2s}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .wrap{padding:0 32px}
  .hero-grid{gap:40px}
  .note-grid{gap:40px}
  .foot-grid{gap:32px}
}
@media (max-width:1024px){
  body{padding-left:0;padding-top:64px}
  .sidebar{
    width:290px;transform:translateX(-100%);
    transition:transform .26s var(--ease);
    padding-top:24px;box-shadow:0 0 60px rgba(0,0,0,.4);
  }
  .sidebar.is-open{transform:none}
  .topbar{display:flex}
  section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media img{height:300px}
  .hero-badge{left:16px}
  .ov-grid{grid-template-columns:1fr 1fr}
  .note-grid{grid-template-columns:1fr}
  .note-grid img{height:300px}
  .cta-box{grid-template-columns:1fr;padding:48px 34px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  section{padding:56px 0}
  .page-hero{padding:44px 0 56px}
  .page-hero h1{font-size:clamp(2rem,7.4vw,2.6rem)}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:20px}
  .ov-grid,.cl-grid{grid-template-columns:1fr}
  .tl-item{grid-template-columns:52px 1fr;gap:16px}
  .tl-dot{width:52px;height:52px;border-radius:16px;font-size:16px}
  .tl-item::before{left:25px;top:56px}
  .tl-body{padding:22px 20px}
  .faq-q{font-size:16.5px;padding:18px 20px}
  .faq-a p{padding:0 20px 20px 20px}
  .cta-box{padding:40px 24px;border-radius:18px}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:34px}
  .foot-bottom{flex-direction:column;gap:8px}
  .hero-media img,.note-grid img{height:240px}
}
@media (max-width:480px){
  .wrap{padding:0 16px}
  .sec-head{margin-bottom:32px}
  .brand-text strong{font-size:13.5px}
  .fact strong{font-size:20px}
  .hero-badge{position:static;margin-top:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --ink:#111417;
  --ink-soft:#1b2027;
  --teal:#2AD4B0;
  --teal-dark:#19ac8e;
  --copper:#FF7A45;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E5E1DA;
  --line-strong:#d6d1c8;
  --text:#17191C;
  --muted:#5E6673;
  --success:#1FBF8F;
  --warn:#E06B3C;
  --danger:#D64545;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(17,20,23,.04),0 12px 32px rgba(17,20,23,.06);
  --sh-2:0 16px 40px rgba(17,20,23,.12);
  --side-w:236px;
  --sec:clamp(56px,6vw,96px);
  --pad-x:clamp(20px,4vw,56px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-card);}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(42,212,176,.35);outline-offset:2px;border-radius:6px;}
a.link-teal{color:var(--teal-dark);font-weight:600;border-bottom:1px solid rgba(42,212,176,.5);}
a.link-teal:hover{color:var(--ink);border-color:var(--ink);}
::selection{background:rgba(42,212,176,.3);}

.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--pad-x);}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--side-w);
  background:linear-gradient(180deg,#111417 0%,#171d22 100%);
  color:#e8ecef;display:flex;flex-direction:column;
  padding:26px 18px 22px;z-index:70;
  border-right:1px solid rgba(255,255,255,.06);
}
.brand{display:flex;gap:12px;align-items:flex-start;padding:0 6px 22px;border-bottom:1px solid rgba(255,255,255,.09);}
.brand-mark{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  background:linear-gradient(140deg,var(--teal) 0%,#1c9d84 100%);
  color:#0d1113;font-weight:800;font-size:20px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(42,212,176,.28);
}
.brand-text{display:flex;flex-direction:column;gap:4px;}
.brand-text strong{font-size:15px;font-weight:800;letter-spacing:-.01em;line-height:1.35;color:#fff;}
.brand-text em{font-style:normal;font-size:11.5px;color:#8b969f;line-height:1.5;}
.nav{display:flex;flex-direction:column;gap:4px;margin-top:22px;flex:1 1 auto;overflow-y:auto;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:11px;
  padding:11px 12px 11px 14px;border-radius:10px;
  color:#a8b2ba;font-size:14.5px;font-weight:500;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav-item i{width:18px;text-align:center;font-size:14px;color:#6f7b85;transition:color .18s ease;}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--teal);transition:height .2s ease;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;transform:translateX(2px);}
.nav-item:hover i{color:var(--teal);}
.nav-item.is-active{background:rgba(42,212,176,.12);color:#fff;font-weight:700;}
.nav-item.is-active i{color:var(--teal);}
.nav-item.is-active::before{height:22px;}
.side-foot{margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.09);}
.side-note{font-size:12px;color:#7d8891;line-height:1.6;margin-top:12px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:700;
  border:1px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:var(--teal);box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--teal);color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px);}
.btn-outline-teal{background:transparent;border-color:var(--teal);color:#0e2b26;}
.btn-outline-teal:hover{background:var(--teal);color:var(--ink);transform:translateY(-2px);}
.btn-block{width:100%;padding:12px 18px;font-size:14px;}
.btn-teal{background:var(--teal);color:var(--ink);}
.btn-teal:hover{background:#3ee0bd;transform:translateY(-2px);box-shadow:0 14px 32px rgba(42,212,176,.35);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn.is-loading{position:relative;color:transparent;}
.btn.is-loading::after{
  content:"";position:absolute;width:18px;height:18px;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:80;
  background:rgba(17,20,23,.96);backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar .brand{padding:0;border:0;gap:10px;align-items:center;}
.topbar .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px;}
.topbar .brand-text strong{font-size:14px;white-space:nowrap;}
.menu-btn{
  width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  color:#fff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);font-size:17px;
}
.menu-btn:hover{background:rgba(42,212,176,.2);color:var(--teal);}
.scrim{display:none;position:fixed;inset:0;background:rgba(10,12,14,.6);z-index:69;}
.scrim.is-open{display:block;}

/* ============ 主内容 ============ */
main{margin-left:var(--side-w);}
.page-head{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(246,244,239,.96) 0%,rgba(246,244,239,.86) 46%,rgba(246,244,239,.62) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
}
.page-head .wrap{padding-top:clamp(52px,7vw,96px);padding-bottom:clamp(44px,6vw,84px);}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.crumbs a:hover{color:var(--teal-dark);}
.crumbs span.sep{color:var(--line-strong);}
.crumbs .now{color:#8a929b;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(42,212,176,.14);color:#116b58;
  font-size:12.5px;font-weight:700;letter-spacing:.02em;border:1px solid rgba(42,212,176,.3);
}
.page-head h1{
  font-size:clamp(2rem,4.4vw,3.3rem);font-weight:800;letter-spacing:-.03em;line-height:1.16;
  margin:18px 0 16px;max-width:20em;
}
.page-head h1 .hl{color:#0f7a64;}
.lead{font-size:17px;color:var(--muted);max-width:44em;line-height:1.8;}
.head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.head-metrics{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;}
.metric{
  background:rgba(255,255,255,.85);border:1px solid var(--line);border-radius:14px;
  padding:14px 20px;min-width:148px;box-shadow:var(--sh-1);
}
.metric b{display:block;font-size:24px;font-weight:800;color:var(--ink);letter-spacing:-.02em;}
.metric span{font-size:12.5px;color:var(--muted);}

section{padding:var(--sec) 0;}
.sec-head{margin-bottom:38px;max-width:52em;}
.sec-head h2{font-size:clamp(1.6rem,3vw,2.35rem);font-weight:750;letter-spacing:-.025em;line-height:1.22;margin-bottom:12px;}
.sec-head p{color:var(--muted);font-size:16.5px;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.16em;
  color:var(--teal-dark);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";display:inline-block;width:22px;height:2px;background:var(--teal);vertical-align:middle;margin-right:8px;}

/* 介绍左右分栏 */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,60px);align-items:center;}
.intro-grid p{color:var(--muted);margin-top:16px;font-size:16.5px;}
.intro-list{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.intro-list li{display:flex;gap:13px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--sh-1);}
.intro-list i{color:var(--teal-dark);margin-top:4px;font-size:15px;}
.intro-list strong{display:block;font-size:15.5px;font-weight:700;}
.intro-list span{font-size:14px;color:var(--muted);}
.intro-figure{position:relative;}
.intro-figure img{border-radius:20px;box-shadow:var(--sh-2);aspect-ratio:4/3;object-fit:cover;}
.intro-figure figcaption{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(17,20,23,.82);color:#dfe6ea;font-size:12.5px;
  padding:10px 14px;border-radius:10px;backdrop-filter:blur(6px);
}

/* 主体两栏：卡片 + 信息栏 */
.body-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:clamp(24px,3vw,46px);align-items:start;}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.qcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 26px 22px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.qcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(42,212,176,.55);}
.qcard .no{font-size:12.5px;font-weight:800;letter-spacing:.12em;color:var(--copper);}
.qcard h3{font-size:19px;font-weight:700;line-height:1.4;letter-spacing:-.01em;}
.qcard p{font-size:14.5px;color:var(--muted);line-height:1.78;}
.qcard .tags{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:var(--r-pill);
  background:#f1efe9;border:1px solid var(--line);color:var(--muted);font-size:12px;font-weight:600;
}
.chip.teal{background:rgba(42,212,176,.14);border-color:rgba(42,212,176,.32);color:#116b58;}
.chip.copper{background:rgba(255,122,69,.13);border-color:rgba(255,122,69,.32);color:#a8461d;}
.qcard .foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:#8a929b;}
.qcard .foot a{color:var(--ink);font-weight:700;border-bottom:1px solid var(--line-strong);}
.qcard .foot a:hover{color:var(--teal-dark);border-color:var(--teal-dark);}

/* 右侧信息栏 */
.aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px;}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);}
.panel h3{font-size:16px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:9px;}
.panel h3 i{color:var(--teal-dark);}
.check-list{display:flex;flex-direction:column;gap:11px;}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.7;}
.check-list i{color:var(--success);font-size:13px;margin-top:5px;}
.panel-dark{background:var(--ink);border-color:var(--ink);color:#dfe5e9;}
.panel-dark h3{color:#fff;}
.panel-dark h3 i{color:var(--copper);}
.panel-dark p{font-size:13.5px;color:#9aa5ad;line-height:1.75;}
.panel-dark .mini{margin-top:14px;display:flex;flex-direction:column;gap:9px;}
.panel-dark .mini span{display:flex;justify-content:space-between;border-bottom:1px dashed rgba(255,255,255,.16);padding-bottom:8px;font-size:13px;color:#c4cdd3;}
.panel-dark .mini b{color:var(--teal);font-weight:700;}
.bar-row{display:flex;flex-direction:column;gap:10px;margin-top:6px;}
.bar-row .bar-label{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);}
.bar{height:7px;border-radius:99px;background:#eeece6;overflow:hidden;}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--teal),#1c9d84);}
.bar.copper i{background:linear-gradient(90deg,var(--copper),#e0603a);}

/* 流程轴 */
.flow{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:clamp(24px,3.5vw,44px);box-shadow:var(--sh-1);}
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:10px;}
.step{position:relative;padding-top:24px;}
.step::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--line);border-radius:2px;}
.step::after{content:"";position:absolute;top:-3px;left:0;width:22px;height:9px;border-radius:2px;background:var(--teal);}
.step b{font-size:13px;color:var(--copper);font-weight:800;letter-spacing:.1em;}
.step h3{font-size:17px;font-weight:700;margin:8px 0 8px;}
.step p{font-size:14px;color:var(--muted);line-height:1.75;}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:12px;max-width:960px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.is-open{border-color:var(--teal);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 22px;font-size:17px;font-weight:700;text-align:left;line-height:1.5;color:var(--ink);
}
.faq-q:hover{color:var(--teal-dark);}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:8px;border:1px solid var(--line-strong);position:relative;transition:transform .24s ease,border-color .24s ease,background .24s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--ink);transform:translate(-50%,-50%);}
.faq-icon::before{width:11px;height:1.6px;}
.faq-icon::after{width:1.6px;height:11px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:var(--teal);background:rgba(42,212,176,.16);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.8;max-width:720px;}

/* CTA */
.cta{background:var(--ink);color:#eaeff2;border-radius:24px;padding:clamp(30px,4.5vw,60px);position:relative;overflow:hidden;}
.cta::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(42,212,176,.28),transparent 68%);
}
.cta-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(26px,4vw,56px);position:relative;z-index:1;}
.cta h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;line-height:1.24;letter-spacing:-.02em;color:#fff;}
.cta p{color:#9aa5ad;margin-top:14px;font-size:15.5px;max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta .btn-ghost{border-color:rgba(255,255,255,.32);color:#fff;}
.cta .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}
.form-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.13);border-radius:16px;padding:24px;}
.form-card h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;font-weight:600;color:#b8c2c9;margin-bottom:7px;}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-input);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);color:#fff;font-size:14.5px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{height:auto;padding:12px 14px;min-height:96px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#7d8891;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(42,212,176,.22);background:rgba(255,255,255,.1);}
.field.error input{border-color:var(--copper);}
.field .msg{font-size:12.5px;margin-top:6px;color:#ffb08f;display:none;}
.field.error .msg{display:block;}
.field.success input{border-color:var(--success);}
.hint{font-size:12.5px;color:#8b969f;margin-top:12px;line-height:1.65;}

/* 页脚 */
footer{background:#0d1114;color:#9aa5ad;margin-left:var(--side-w);border-top:1px solid rgba(255,255,255,.07);}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding:clamp(40px,5vw,68px) 0 34px;}
.foot-brand{display:flex;gap:13px;align-items:flex-start;}
.foot-brand strong{display:block;color:#fff;font-size:16px;font-weight:800;margin-bottom:9px;}
.foot-brand p{font-size:13.5px;line-height:1.75;color:#8b969f;max-width:26em;}
.foot-brand .brand-mark{width:38px;height:38px;font-size:18px;}
.foot-grid h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:15px;letter-spacing:.01em;}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:13.5px;color:#9aa5ad;transition:color .18s ease,transform .18s ease;display:inline-block;}
.foot-links a:hover{color:var(--teal);transform:translateX(3px);}
.foot-contact{display:flex;flex-direction:column;gap:11px;}
.foot-contact li{display:flex;gap:10px;font-size:13.5px;color:#9aa5ad;line-height:1.6;}
.foot-contact i{color:#5f6a72;margin-top:4px;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 30px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#6f7a83;
}

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

@media (max-width:1440px){
  :root{--side-w:224px;}
}
@media (max-width:1200px){
  .body-grid{grid-template-columns:minmax(0,1fr) 300px;}
  .flow-steps{grid-template-columns:repeat(2,1fr);gap:26px;}
}
@media (max-width:1024px){
  :root{--side-w:0px;}
  .topbar{display:flex;}
  .sidebar{
    width:100%;max-width:420px;padding:22px 20px 26px;
    transform:translateX(-102%);transition:transform .3s ease;
    box-shadow:20px 0 60px rgba(0,0,0,.45);overflow-y:auto;
  }
  .sidebar.is-open{transform:none;}
  .sidebar .brand{padding-bottom:18px;}
  .nav{margin-top:18px;}
  .nav-item{padding:14px 14px;font-size:16px;}
  .nav-item i{font-size:16px;}
  main,footer{margin-left:0;}
  .topbar-spacer{height:64px;}
  .intro-grid{grid-template-columns:1fr;}
  .body-grid{grid-template-columns:1fr;}
  .aside{position:static;}
  .cta-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  .page-head h1{font-size:clamp(1.75rem,7vw,2.4rem);}
  .card-grid{grid-template-columns:1fr;}
  .flow-steps{grid-template-columns:1fr;}
  .head-actions .btn,.head-metrics{width:100%;}
  .head-actions{flex-direction:column;align-items:stretch;}
  .head-metrics .metric{flex:1 1 100%;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;}
  .sec-head{margin-bottom:28px;}
  .faq-q{font-size:15.5px;padding:17px 16px;}
  .faq-a-inner{padding:0 16px 18px;}
}
@media (max-width:520px){
  :root{--pad-x:16px;}
  .page-head .wrap{padding-top:34px;padding-bottom:38px;}
  .qcard{padding:20px;}
  .panel{padding:18px;}
  .hide-xs{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}