/* roulang page: index */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --bg-2:#101A2E;
  --bg-foot:#05080F;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.05);
  --primary:#22E0B8;
  --primary-2:#0FB39A;
  --accent:#FFB733;
  --danger:#FF5C7A;
  --text-1:#E9EFF7;
  --text-2:#98A7BC;
  --text-3:#5F6E86;
  --font-sans:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","DIN Alternate","Oswald",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --r-lg:22px;
  --r-md:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-in:10px;
  --shadow-1:0 12px 32px -18px rgba(0,0,0,.9);
  --shadow-2:0 26px 60px -22px rgba(0,0,0,.95);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* 容器 */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1600px){.container{max-width:1320px}}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease),background 220ms var(--ease),color 220ms var(--ease);
}
.btn--primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04140F;
  box-shadow:0 0 0 1px rgba(34,224,184,.45),0 12px 34px -10px rgba(34,224,184,.5);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(34,224,184,.6),0 18px 42px -12px rgba(34,224,184,.62)}
.btn--primary:active{transform:scale(.985);box-shadow:0 0 0 1px rgba(34,224,184,.4),0 8px 20px -12px rgba(34,224,184,.45)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.16);color:var(--text-1)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

/* 文字链接 */
.tlink{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);
  transition:color 220ms var(--ease),gap 220ms var(--ease);
}
.tlink .arw{transition:transform 220ms var(--ease)}
.tlink:hover{color:#5CF0D2}
.tlink:hover .arw{transform:translateX(3px)}
.tlink:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}

/* 胶囊 */
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;letter-spacing:.04em;
  border:1px solid rgba(255,183,51,.5);color:var(--accent);
  background:rgba(255,183,51,.06);
  clip-path:polygon(10px 0,100% 0,100% 100%,0 100%,0 10px);
}
.chip--primary{border-color:rgba(34,224,184,.45);color:var(--primary);background:rgba(34,224,184,.07)}

/* 区块标题 */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.12em;color:var(--text-2);margin-bottom:16px;
}
.eyebrow::before{content:"";width:5px;height:5px;background:var(--primary);display:inline-block}
.section{padding:112px 0;position:relative}
.section--alt{background:var(--bg-1)}
.section__head{max-width:740px;margin-bottom:48px}
.section__head h2{
  font-size:clamp(26px,3.2vw,38px);line-height:1.2;font-weight:700;letter-spacing:-.01em;margin-bottom:14px;
}
.section__head p{color:var(--text-2);font-size:15px;max-width:660px}
.section__foot{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}

/* 卡片 */
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:28px;
  box-shadow:var(--shadow-1);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-2)}

/* ===== 导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;height:72px;
  display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:height 280ms var(--ease),background 280ms var(--ease),border-color 280ms var(--ease),backdrop-filter 280ms var(--ease);
}
.site-header.is-stuck{
  height:64px;
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.nav__inner{display:flex;align-items:center;width:100%}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo__mark{
  width:28px;height:28px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 22px -7px rgba(34,224,184,.9);
  position:relative;
}
.logo__mark::after{
  content:"";position:absolute;left:9px;top:6px;width:9px;height:9px;
  border:1.6px solid #04140F;border-radius:2px;
  border-right-color:transparent;border-bottom-color:transparent;
  transform:rotate(45deg);
}
.logo__text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--text-1)}
.nav__divider{width:1px;height:22px;background:rgba(255,255,255,.08);margin:0 24px;flex:none}
.nav__links{display:flex;align-items:center;gap:34px;margin-right:auto}
.nav__links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 2px;transition:color 220ms var(--ease);
}
.nav__links a::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:1px;
  background:var(--primary);transform:translateX(-50%);
  transition:width 280ms var(--ease),height 280ms var(--ease),background 280ms var(--ease);
}
.nav__links a:hover{color:var(--text-1)}
.nav__links a:hover::after{width:100%}
.nav__links a.is-active{color:var(--text-1)}
.nav__links a.is-active::after{width:18px;height:6px;border-radius:999px;background:rgba(34,224,184,.10);bottom:-2px}
.nav__links a.is-active::before{
  content:"";position:absolute;top:-3px;left:50%;transform:translateX(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 10px rgba(34,224,184,.85);
}
.nav__links a:focus-visible{outline:2px solid var(--primary);outline-offset:4px;border-radius:4px}
.nav__toggle{
  display:none;width:40px;height:40px;margin-left:12px;position:relative;
  background:transparent;border:0;cursor:pointer;
}
.nav__toggle span{position:absolute;left:9px;width:22px;height:1.5px;background:var(--text-1);transition:transform 260ms var(--ease),top 260ms var(--ease),opacity 200ms var(--ease)}
.nav__toggle span:nth-child(1){top:16px}
.nav__toggle span:nth-child(2){top:23px}
.nav__toggle.is-open span:nth-child(1){top:19px;transform:rotate(45deg)}
.nav__toggle.is-open span:nth-child(2){top:19px;transform:rotate(-45deg)}
.nav__toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}

.nav__drawer{
  position:fixed;inset:0;z-index:110;background:#070B14;
  padding:104px 24px 32px;display:flex;flex-direction:column;gap:4px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity 260ms var(--ease),transform 260ms var(--ease),visibility 260ms;
}
.nav__drawer.is-open{opacity:1;visibility:visible;transform:none}
.nav__drawer a{
  font-size:18px;font-weight:500;color:var(--text-1);
  padding:16px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(8px);
  transition:opacity 300ms var(--ease),transform 300ms var(--ease);
}
.nav__drawer.is-open a{opacity:1;transform:none}
.nav__drawer.is-open a:nth-child(1){transition-delay:.04s}
.nav__drawer.is-open a:nth-child(2){transition-delay:.08s}
.nav__drawer.is-open a:nth-child(3){transition-delay:.12s}
.nav__drawer.is-open a:nth-child(4){transition-delay:.16s}
.nav__drawer .btn{opacity:0;transform:translateY(8px);transition:opacity 300ms var(--ease) .2s,transform 300ms var(--ease) .2s}
.nav__drawer.is-open .btn{opacity:1;transform:none}
.nav__drawer .drawer-cta{margin-top:auto}

/* ===== Hero ===== */
.hero{
  position:relative;display:flex;align-items:center;
  min-height:680px;padding:150px 0 100px;
  background-color:var(--bg-0);
  background-image:linear-gradient(180deg,rgba(7,11,20,.94),rgba(7,11,20,.62) 55%,rgba(7,11,20,.96)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:56px;align-items:center;width:100%}
.hero h1{
  font-size:clamp(34px,5.2vw,60px);line-height:1.12;letter-spacing:-.02em;font-weight:700;
  margin-bottom:20px;
}
.hero__sub{color:var(--text-2);font-size:17px;max-width:560px;margin-bottom:32px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero__trust{display:flex;flex-wrap:wrap}
.hero__trust li{
  font-size:13px;color:var(--text-2);line-height:1.7;
  padding:0 20px;border-left:1px solid var(--line);
}
.hero__trust li:first-child{border-left:0;padding-left:0}
.hero__panel{
  position:relative;border-radius:var(--r-lg);padding:28px;
  background:var(--glass);border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-2);overflow:hidden;
}
.hero__panel::before{content:"";position:absolute;inset:0;background:rgba(7,11,20,.55);pointer-events:none}
.hero__panel > *{position:relative;z-index:1}
.panel__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.panel__head strong{font-size:14px;font-weight:600;color:var(--text-1)}
.panel__head .dot{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--text-2)}
.panel__head .dot i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(34,224,184,.9);display:inline-block}
.panel__grid{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:20px}
.panel__item{padding:16px 18px;border-left:1px solid var(--line);border-top:1px solid var(--line)}
.panel__item:nth-child(odd){border-left:0;padding-left:0}
.panel__item:nth-child(-n+2){border-top:0}
.panel__num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:44px;line-height:1;color:var(--primary)}
.panel__num small{font-size:16px;color:var(--text-2);margin-left:4px}
.panel__label{font-size:13px;color:var(--text-2);margin-top:8px}
.panel__bar{height:1px;margin-top:22px;background:linear-gradient(90deg,var(--primary),rgba(34,224,184,.15) 55%,transparent)}

/* ===== 服务 1+2 非对称 ===== */
.svc{display:grid;grid-template-columns:1.45fr 1fr;grid-template-areas:"main a" "main b";gap:24px}
.svc__main{grid-area:main;display:flex;flex-direction:column;overflow:hidden;padding:0}
.svc__main .svc__media{aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-img);margin:14px 14px 0}
.svc__main .svc__media img{width:100%;height:100%;object-fit:cover}
.svc__body{padding:24px 28px 28px}
.svc__body h3{font-size:22px;line-height:1.35;font-weight:600;margin:14px 0 12px}
.svc__body > p{color:var(--text-2);font-size:15px;margin-bottom:20px}
.svc__list li{
  position:relative;padding-left:16px;font-size:14px;color:var(--text-2);
  line-height:1.9;
}
.svc__list li::before{
  content:"";position:absolute;left:0;top:12px;width:5px;height:5px;background:var(--primary);
}
.svc__list{margin-bottom:22px}
.svc__mini{display:flex;flex-direction:column}
.svc__mini .ico{
  width:38px;height:38px;border-radius:11px;flex:none;margin-bottom:18px;
  border:1px solid rgba(34,224,184,.35);background:rgba(34,224,184,.08);
  position:relative;
}
.svc__mini .ico::after{
  content:"";position:absolute;left:12px;top:12px;width:12px;height:12px;
  border:1.5px solid var(--primary);border-radius:2px;
  border-right-color:transparent;border-bottom-color:transparent;transform:rotate(45deg);
}
.svc__mini h3{font-size:18px;font-weight:600;line-height:1.4;margin-bottom:10px}
.svc__mini p{font-size:14px;color:var(--text-2)}

/* ===== 数据 ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:8px}
.stat{padding:0 32px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat__num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:clamp(40px,4.6vw,54px);line-height:1;color:var(--primary)}
.stat__num small{font-size:18px;color:var(--text-2);margin-left:4px}
.stat__label{font-size:13px;color:var(--text-2);margin-top:12px}
.stat__bar{height:1px;margin-top:16px;background:linear-gradient(90deg,var(--primary),transparent)}

/* ===== 案例 ===== */
.case{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:56px 0}
.case:not(:first-child)::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,184,.2),transparent);
}
.case--rev .case__media{order:2}
.case__media{aspect-ratio:16/9;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.case__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.case:hover .case__media img{transform:scale(1.02)}
.case__body h3{font-size:24px;line-height:1.4;font-weight:600;margin:14px 0 14px}
.case__body p{color:var(--text-2);font-size:15px;margin-bottom:20px;max-width:520px}

/* ===== 方案阶梯 ===== */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plans .card:nth-child(2){margin-top:28px}
.plans .card:nth-child(3){margin-top:56px}
.plan__tag{font-family:var(--font-num);font-size:40px;line-height:1;color:rgba(34,224,184,.28)}
.plan__name{font-size:19px;font-weight:600;margin:16px 0 18px}
.plan__list li{position:relative;padding-left:16px;font-size:14px;color:var(--text-2);line-height:1.9}
.plan__list li::before{content:"";position:absolute;left:0;top:12px;width:5px;height:5px;background:var(--primary)}
.plan__foot{margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}

/* ===== 资讯列表 ===== */
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:block;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px;box-shadow:var(--shadow-1);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-2)}
.news-card__media{aspect-ratio:16/9;border-radius:var(--r-img);overflow:hidden;margin-bottom:16px;background:var(--bg-2)}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.news-card:hover .news-card__media img{transform:scale(1.03)}
.news-card__title{
  font-size:17px;font-weight:600;line-height:1.5;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__excerpt{
  font-size:14px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.news-card__foot time{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.news-card__foot .arw{color:var(--primary);transition:transform 220ms var(--ease)}
.news-card:hover .news-card__foot .arw{transform:translateX(3px)}
.news-empty{
  grid-column:1/-1;min-height:180px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:10px;text-align:center;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);padding:36px;
}
.news-empty span{font-size:14px;color:var(--text-2)}

/* ===== FAQ ===== */
.faq{max-width:760px;margin:0 auto;border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{
  width:100%;min-height:52px;padding:14px 0;background:none;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;font-size:16px;font-weight:500;color:var(--text-1);
  transition:color 220ms var(--ease);
}
.faq__q:hover{color:var(--primary)}
.faq__q:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.faq__icon{position:relative;width:12px;height:12px;flex:0 0 12px;transition:transform 300ms var(--ease)}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:var(--primary);border-radius:1px}
.faq__icon::before{left:0;top:5.5px;width:12px;height:1px}
.faq__icon::after{left:5.5px;top:0;width:1px;height:12px}
.faq__item.is-open .faq__icon{transform:rotate(45deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height 340ms var(--ease)}
.faq__a p{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:700px}

/* ===== 联系 ===== */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13px;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--r-in);
  padding:12px 14px;font-size:15px;color:var(--text-1);
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.8}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:rgba(34,224,184,.04);
  box-shadow:0 0 0 3px rgba(34,224,184,.18);
}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form__tip{font-size:13px;color:var(--text-2);margin-top:14px;min-height:20px}
.info__card{
  position:relative;border-radius:var(--r-lg);padding:28px;
  background:var(--glass);border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-2);overflow:hidden;
}
.info__card::before{content:"";position:absolute;inset:0;background:rgba(7,11,20,.55);pointer-events:none}
.info__card > *{position:relative;z-index:1}
.info__row{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);font-size:14px}
.info__row:last-of-type{border-bottom:0}
.info__row strong{min-width:76px;color:var(--text-1);font-weight:600}
.info__row span{color:var(--text-2)}
.info__note{
  margin-top:18px;padding:16px;border-radius:12px;
  border:1px solid rgba(34,224,184,.28);background:rgba(34,224,184,.06);
  font-size:13px;color:var(--text-2);line-height:1.8;
}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-foot);border-top:1px solid var(--line);padding-top:72px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr}
.footer__col{padding:0 30px;border-left:1px solid var(--line)}
.footer__col:first-child{border-left:0;padding-left:0}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer__col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text-1)}
.footer__col p{font-size:13px;color:var(--text-2);line-height:1.9;max-width:300px}
.footer__links li{margin-bottom:10px}
.footer__links a{font-size:13px;color:var(--text-2);transition:color 220ms var(--ease)}
.footer__links a:hover{color:var(--primary)}
.footer__links a:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
.footer__bottom{
  margin-top:56px;border-top:1px solid var(--line);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--text-3);
}
.footer__bottom span:last-child{font-family:var(--font-num);letter-spacing:.02em}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 620ms var(--ease),transform 620ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .nav__links{gap:26px}
  .section{padding:96px 0}
}
@media (max-width:1023px){
  .nav__links,.nav__divider{display:none}
  .nav__toggle{display:block}
  .nav__inner .btn--sm{margin-left:auto}
  .hero{padding:132px 0 84px;min-height:0}
  .hero__grid{grid-template-columns:1fr;gap:40px}
  .hero__sub{max-width:none}
  .svc{grid-template-columns:1fr;grid-template-areas:"main" "a" "b"}
  .stats{grid-template-columns:1fr 1fr;row-gap:36px}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .case{grid-template-columns:1fr;gap:28px;padding:48px 0}
  .case--rev .case__media{order:0}
  .plans{grid-template-columns:1fr;gap:20px}
  .plans .card:nth-child(2),.plans .card:nth-child(3){margin-top:0}
  .news{grid-template-columns:1fr 1fr}
  .contact{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;row-gap:40px}
  .footer__col:nth-child(3){border-left:0;padding-left:0}
  .footer__col{padding:0 24px}
  .footer__col:first-child,.footer__col:nth-child(3){padding-left:0}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:64px 0}
  .section__head{margin-bottom:32px}
  .section__foot{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .hero{padding:120px 0 64px}
  .hero__trust{flex-direction:column;gap:10px}
  .hero__trust li{border-left:0;padding:0;padding-left:14px;border-left:1px solid var(--line)}
  .hero__trust li:first-child{padding-left:0;border-left:0}
  .panel__num{font-size:36px}
  .news{grid-template-columns:1fr}
  .form__row{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;row-gap:28px}
  .stat{border-left:0;padding:0;padding-bottom:22px;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0;padding-bottom:0}
  .footer__grid{grid-template-columns:1fr}
  .footer__col{border-left:0;padding:0}
  .footer__col + .footer__col{padding-top:24px;border-top:1px solid var(--line)}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .btn{width:100%}
  .hero__actions .btn,.form .btn{width:100%}
  .news-card__title{font-size:16px}
}
@media (max-width:520px){
  .hero h1{font-size:30px}
  .card{padding:20px}
  .svc__body{padding:20px}
  .hero__panel,.info__card{padding:20px}
  .nav__inner .btn--sm{height:36px;padding:0 14px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* roulang page: category1 */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --bg-2:#101A2E;
  --footer-bg:#05080F;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.05);
  --primary:#22E0B8;
  --primary-2:#0FB39A;
  --accent:#FFB733;
  --accent-2:#FF7A45;
  --danger:#FF5C7A;
  --text-1:#E9EFF7;
  --text-2:#98A7BC;
  --text-3:#5F6E86;
  --r-xl:22px;
  --r-lg:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-card:0 12px 32px -18px rgba(0,0,0,.9);
  --shadow-hover:0 26px 60px -22px rgba(0,0,0,.95);
  --glow:0 0 0 1px rgba(34,224,184,.45),0 12px 34px -10px rgba(34,224,184,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sans:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Barlow Condensed","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.drawer-open{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(34,224,184,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;height:72px;
  display:flex;align-items:center;
  background:rgba(7,11,20,0);
  border-bottom:1px solid transparent;
  transition:height .28s var(--ease),background .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-stuck{
  height:64px;
  background:rgba(7,11,20,.72);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.header__inner{display:flex;align-items:center;gap:22px;height:100%}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{
  width:22px;height:22px;border-radius:7px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 1px rgba(34,224,184,.35),0 8px 20px -8px rgba(34,224,184,.7);
  position:relative;flex:0 0 auto;
}
.logo__mark::after{
  content:"";position:absolute;inset:6px 6px 6px 6px;
  border-radius:3px;background:var(--bg-0);opacity:.85;
}
.logo__text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--text-1);white-space:nowrap}
.header__divider{width:1px;height:22px;background:rgba(255,255,255,.08);flex:0 0 auto}
.nav__links{display:flex;align-items:center;gap:34px;margin-left:8px}
.nav__links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 2px;transition:color .22s var(--ease);
}
.nav__links a::after{
  content:"";position:absolute;left:50%;bottom:0;height:1px;width:0;
  transform:translateX(-50%);
  background:linear-gradient(90deg,rgba(34,224,184,0),rgba(34,224,184,.75),rgba(34,224,184,0));
  transition:width .28s var(--ease);
}
.nav__links a::before{
  content:"";position:absolute;left:-12px;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--primary);transform:translateY(-50%) scale(0);
  transition:transform .28s var(--ease);
  box-shadow:0 0 10px rgba(34,224,184,.8);
}
.nav__links a:hover{color:var(--text-1)}
.nav__links a:hover::after{width:100%}
.nav__links a.is-active{color:var(--text-1)}
.nav__links a.is-active::before{transform:translateY(-50%) scale(1)}
.nav__links a.is-active::after{width:100%}
.header__actions{margin-left:auto;display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-toggle{
  display:none;width:40px;height:40px;margin-left:auto;
  background:transparent;border:0;padding:0;position:relative;cursor:pointer;
}
.nav-toggle span{
  position:absolute;left:9px;right:9px;height:1.5px;border-radius:2px;background:var(--text-1);
  transition:transform .3s var(--ease);
}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){bottom:15px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-6.5px) rotate(-45deg)}
.drawer{
  position:fixed;left:0;right:0;top:60px;bottom:0;z-index:70;
  background:#05080F;border-top:1px solid var(--line);
  padding:28px 24px 32px;display:none;flex-direction:column;gap:8px;
}
.drawer.is-open{display:flex}
.drawer__links{display:flex;flex-direction:column}
.drawer__links a{
  font-size:17px;font-weight:500;color:var(--text-2);
  padding:16px 4px;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(10px);
  animation:drawerIn .36s var(--ease) forwards;
}
.drawer__links a:nth-child(1){animation-delay:.04s}
.drawer__links a:nth-child(2){animation-delay:.08s}
.drawer__links a:nth-child(3){animation-delay:.12s}
.drawer__links a:nth-child(4){animation-delay:.16s}
.drawer__links a.is-active{color:var(--primary)}
.drawer__cta{margin-top:24px}
@keyframes drawerIn{to{opacity:1;transform:translateY(0)}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.btn--primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04190F;
  box-shadow:var(--glow);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(34,224,184,.6),0 20px 46px -12px rgba(34,224,184,.62)}
.btn--primary:active{transform:scale(.985);box-shadow:0 0 0 1px rgba(34,224,184,.4),0 8px 20px -10px rgba(34,224,184,.4)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.16);color:var(--text-1)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:border-color .22s var(--ease),gap .22s var(--ease);
}
.link-arrow span{transition:transform .22s var(--ease)}
.link-arrow:hover{border-bottom-color:rgba(34,224,184,.5)}
.link-arrow:hover span{transform:translateX(3px)}

/* ---------- 通用 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;color:var(--primary);font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,rgba(34,224,184,.2),var(--primary))}
.sec-title{
  display:flex;align-items:flex-start;gap:12px;
  font-size:clamp(26px,3.2vw,38px);line-height:1.2;letter-spacing:-.01em;font-weight:700;
}
.sec-title::before{
  content:"";flex:0 0 auto;width:12px;height:2px;margin-top:.62em;border-radius:2px;background:var(--primary);
}
.sec-desc{margin-top:18px;max-width:760px;color:var(--text-2);font-size:16px;line-height:1.9}
.section-head{margin-bottom:40px}
.track-line{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,rgba(34,224,184,0),rgba(34,224,184,.28),rgba(34,224,184,0));
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:500;
  border:1px solid rgba(255,183,51,.45);color:var(--accent);background:rgba(255,183,51,.06);
}
.tag--primary{border-color:rgba(34,224,184,.4);color:var(--primary);background:rgba(34,224,184,.08)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;padding:56px 0 76px;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(7,11,20,.96),rgba(7,11,20,.74) 58%,rgba(7,11,20,.99)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero__grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-3);transition:color .22s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb i{font-style:normal;color:rgba(255,255,255,.2)}
.page-hero h1{
  font-size:clamp(32px,4.6vw,54px);line-height:1.14;letter-spacing:-.02em;font-weight:700;
  max-width:14em;
}
.page-hero__lead{margin-top:22px;max-width:640px;color:var(--text-2);font-size:16.5px;line-height:1.9}
.hero-facts{margin-top:32px;display:flex;flex-direction:column;gap:0;max-width:520px}
.hero-facts li{
  display:flex;align-items:center;gap:12px;
  padding:13px 0;border-top:1px solid var(--line);
  font-size:14.5px;color:var(--text-2);
}
.hero-facts li:last-child{border-bottom:1px solid var(--line)}
.hero-facts li::before{content:"";width:5px;height:5px;background:var(--primary);border-radius:1px;flex:0 0 auto}
.page-hero__media{position:relative}
.page-hero__media img{
  width:100%;aspect-ratio:5/4;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
}
.page-hero__caption{margin-top:14px;font-size:13px;color:var(--text-3);text-align:center}
.hero-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 锚点 + 分节 ---------- */
.doc-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;align-items:start}
.doc-nav{position:sticky;top:96px}
.doc-nav__title{
  font-size:12.5px;letter-spacing:.16em;color:var(--text-3);font-weight:600;margin-bottom:14px;
}
.doc-nav a{
  display:block;padding:11px 0 11px 16px;font-size:14px;color:var(--text-2);
  border-left:1px solid var(--line);
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.doc-nav a:hover{color:var(--text-1)}
.doc-nav a.is-current{
  color:var(--primary);border-left-color:var(--primary);
  background:linear-gradient(90deg,rgba(34,224,184,.10),rgba(34,224,184,0));
}
.doc-nav__box{
  margin-top:28px;padding:20px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  font-size:13px;line-height:1.75;color:var(--text-2);
}
.doc-nav__box strong{display:block;color:var(--text-1);font-size:14px;margin-bottom:6px}

.doc-section{padding-top:56px}
.doc-section:first-child{padding-top:0}
.doc-section + .doc-section{border-top:1px solid var(--line);margin-top:56px}
.doc-section h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.3;font-weight:700;letter-spacing:-.01em;
  display:flex;align-items:baseline;gap:14px;
}
.doc-section h2 .num{
  font-family:var(--mono);font-size:32px;color:rgba(34,224,184,.3);line-height:1;flex:0 0 auto;
}
.doc-section p{margin-top:18px;max-width:760px;color:var(--text-2);font-size:16px;line-height:1.92}
.point-list{margin-top:24px;display:grid;gap:14px;max-width:760px}
.point-list li{
  position:relative;padding-left:22px;font-size:15.5px;line-height:1.88;color:var(--text-2);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;border-radius:1px;background:var(--primary);
}
.point-list li strong{color:var(--text-1);font-weight:600}

/* ---------- 步骤时间线 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:44px}
.step{
  position:relative;padding:28px 22px 24px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  overflow:hidden;
}
.step::after{
  content:"";position:absolute;left:0;top:0;width:10px;height:10px;
  background:linear-gradient(135deg,rgba(34,224,184,.5),rgba(34,224,184,0));
  clip-path:polygon(0 0,100% 0,0 100%);
}
.step:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.step__num{font-family:var(--mono);font-size:38px;line-height:1;color:rgba(34,224,184,.28);font-variant-numeric:tabular-nums}
.step h3{margin-top:14px;font-size:17px;font-weight:600;color:var(--text-1)}
.step p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.step__line{margin-top:18px;height:1px;background:linear-gradient(90deg,rgba(34,224,184,.55),rgba(34,224,184,0))}

/* ---------- 清单区 ---------- */
.check-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:start;margin-top:44px}
.check-panel{
  padding:32px;border-radius:var(--r-xl);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:16px 28px}
.check-list li{
  position:relative;padding-left:28px;font-size:15px;line-height:1.8;color:var(--text-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.55em;width:14px;height:14px;border-radius:4px;
  border:1px solid rgba(34,224,184,.5);background:rgba(34,224,184,.12);
}
.check-list li::after{
  content:"";position:absolute;left:4.5px;top:.92em;width:5px;height:8px;
  border-right:1.5px solid var(--primary);border-bottom:1.5px solid var(--primary);
  transform:rotate(40deg);
}
.side-card{
  padding:28px 24px;border-radius:var(--r-xl);
  background:linear-gradient(160deg,rgba(34,224,184,.12),rgba(34,224,184,0));
  border:1px solid rgba(34,224,184,.35);
}
.side-card h3{font-size:18px;font-weight:600}
.side-card p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--text-2)}
.side-card .link-arrow{margin-top:20px}
.side-card__meta{
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:var(--text-2);
}
.side-card__meta span{display:flex;justify-content:space-between;gap:12px}
.side-card__meta b{color:var(--text-1);font-weight:600}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin-top:40px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 0;font-size:17px;font-weight:600;color:var(--text-1);
  transition:color .22s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--primary)}
.faq .plus{
  position:relative;width:14px;height:14px;flex:0 0 auto;
  transition:transform .28s var(--ease);
}
.faq .plus::before,.faq .plus::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq .plus::before{left:0;top:6.5px;width:14px;height:1px}
.faq .plus::after{left:6.5px;top:0;width:1px;height:14px}
.faq details[open] .plus{transform:rotate(45deg)}
.faq .faq__body{padding:0 0 24px;max-width:760px;color:var(--text-2);font-size:15.5px;line-height:1.9}

/* ---------- CTA 带 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:44px;border-radius:var(--r-xl);
  background:linear-gradient(135deg,rgba(34,224,184,.10),rgba(34,224,184,0) 60%);
  border:1px solid rgba(34,224,184,.45);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.28;font-weight:700}
.cta-band p{margin-top:12px;max-width:620px;color:var(--text-2);font-size:15.5px;line-height:1.9}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto}
.cta-band--text{background:transparent;border-color:var(--line-strong)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);border-top:1px solid var(--line);padding:72px 0 0;margin-top:96px}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:0}
.footer__col{padding:0 28px}
.footer__col:first-child{padding-left:0}
.footer__col:last-child{padding-right:0}
.footer__col + .footer__col{border-left:1px solid var(--line)}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer__col p{font-size:14.5px;line-height:1.85;color:var(--text-2);max-width:340px}
.footer__col h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer__links{display:flex;flex-direction:column;gap:11px}
.footer__links a{font-size:14px;color:var(--text-2);transition:color .22s var(--ease)}
.footer__links a:hover{color:var(--primary)}
.footer__bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:var(--text-3);
}
.footer__bottom span:last-child{font-family:var(--mono);letter-spacing:.04em}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav__links{gap:22px}
  .nav__links a{font-size:14.5px}
}
@media (max-width:1023px){
  .nav__links,.header__divider,.header__divider--right,.header__actions{display:none}
  .nav-toggle{display:block}
  .site-header{height:60px}
  .site-header.is-stuck{height:60px}
  .page-hero{padding:40px 0 60px}
  .page-hero__grid{grid-template-columns:1fr;gap:36px}
  .page-hero__media{order:-1}
  .page-hero__media img{aspect-ratio:16/9}
  .doc-layout{grid-template-columns:1fr;gap:32px}
  .doc-nav{position:static;display:flex;gap:10px;overflow-x:auto;padding-bottom:8px}
  .doc-nav__title{display:none}
  .doc-nav a{
    flex:0 0 auto;white-space:nowrap;border-left:0;
    border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:13.5px;
  }
  .doc-nav a.is-current{background:rgba(34,224,184,.10);color:var(--primary)}
  .doc-nav__box{display:none}
  .steps{grid-template-columns:1fr 1fr}
  .check-grid{grid-template-columns:1fr;gap:24px}
  .check-list{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:40px 0}
  .footer__col{padding:0 20px}
  .footer__col:nth-child(3){border-left:0;padding-left:0}
  .footer__col:nth-child(1),.footer__col:nth-child(2){padding-left:0}
  .footer__col:nth-child(2){padding-left:20px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:64px 0}
  .section--tight{padding:56px 0}
  .page-hero h1{max-width:none}
  .hero-facts{max-width:none}
  .steps{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 auto}
  .footer__grid{grid-template-columns:1fr;gap:32px}
  .footer__col{padding:0}
  .footer__col + .footer__col{border-left:0;border-top:1px solid var(--line);padding-top:28px}
  .footer__col:first-child{border-top:0;padding-top:0}
  .doc-section h2{flex-direction:row;gap:10px}
  .doc-section h2 .num{font-size:26px}
}
@media (max-width:520px){
  .page-hero{padding:28px 0 48px}
  .page-hero h1{font-size:30px}
  .btn{width:100%}
  .header__actions .btn,.btn--inline{width:auto}
  .check-panel{padding:22px 18px}
  .step{padding:22px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg-0:#070B14; --bg-1:#0B1220; --bg-2:#101A2E; --bg-footer:#05080F;
  --line:rgba(255,255,255,.08); --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.05);
  --primary:#22E0B8; --primary-2:#0FB39A;
  --accent:#FFB733; --accent-2:#FF7A45; --danger:#FF5C7A;
  --text-1:#E9EFF7; --text-2:#98A7BC; --text-3:#5F6E86;
  --r-lg:22px; --r-md:18px; --r-img:14px; --r-btn:12px; --r-input:10px;
  --shadow-card:0 12px 32px -18px rgba(0,0,0,.9);
  --shadow-hover:0 26px 60px -22px rgba(0,0,0,.95);
  --glow:0 0 0 1px rgba(34,224,184,.45), 0 12px 34px -10px rgba(34,224,184,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--text-1);
  font-family:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:transparent;border-bottom:1px solid transparent;transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}
.site-header.is-stuck{background:rgba(7,11,20,.72);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);border-bottom-color:var(--line)}
.header__inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .3s var(--ease)}
.site-header.is-stuck .header__inner{height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 0 0 1px rgba(34,224,184,.35),0 8px 20px -8px rgba(34,224,184,.75);position:relative}
.logo__mark::after{content:"";position:absolute;inset:7px 8px;border-radius:3px;background:var(--bg-0);opacity:.7}
.logo__text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--text-1);white-space:nowrap}
.nav__links{display:flex;align-items:center;gap:34px;height:22px;padding:0 26px;border-left:1px solid var(--line);border-right:1px solid var(--line)}
.nav__links a{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:4px 0}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--primary);transition:width .28s var(--ease)}
.nav__links a:hover{color:var(--text-1)}
.nav__links a:hover::after{width:100%}
.nav__links a.is-active{color:var(--text-1)}
.nav__links a.is-active::before{content:"";position:absolute;left:-11px;top:50%;transform:translateY(-50%);width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(34,224,184,.9)}
.nav__links a.is-active::after{width:18px;background:rgba(34,224,184,.10);height:18px;border-radius:999px;bottom:-8px;left:-4px}
.header__actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:16px;height:1px;background:var(--text-1);transition:transform .28s var(--ease),opacity .28s var(--ease)}
body.drawer-open .nav-toggle span:first-child{transform:translateY(3px) rotate(45deg)}
body.drawer-open .nav-toggle span:last-child{transform:translateY(-3px) rotate(-45deg)}

.mobile-drawer{position:fixed;left:0;right:0;top:60px;bottom:0;z-index:55;background:#070B14;padding:22px 18px 110px;overflow-y:auto;display:flex;flex-direction:column;gap:4px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s}
body.drawer-open .mobile-drawer{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-drawer a{font-size:16px;font-weight:500;color:var(--text-2);padding:14px 4px;border-bottom:1px solid var(--line);opacity:0;transform:translateY(8px);transition:opacity .3s var(--ease),transform .3s var(--ease),color .22s var(--ease)}
body.drawer-open .mobile-drawer a{opacity:1;transform:translateY(0)}
.mobile-drawer a:nth-child(1){transition-delay:.04s}
.mobile-drawer a:nth-child(2){transition-delay:.08s}
.mobile-drawer a:nth-child(3){transition-delay:.12s}
.mobile-drawer a:nth-child(4){transition-delay:.16s}
.mobile-drawer a.is-active{color:var(--primary)}
.mobile-drawer__cta{position:sticky;bottom:0;padding-top:18px;background:linear-gradient(180deg,rgba(7,11,20,0),#070B14 30%)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;letter-spacing:.01em;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease),opacity .22s var(--ease)}
.btn--primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#04211B;box-shadow:var(--glow)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(34,224,184,.6),0 18px 42px -12px rgba(34,224,184,.7)}
.btn--primary:active{transform:scale(.985);box-shadow:0 0 0 1px rgba(34,224,184,.35)}
.btn--ghost{background:transparent;border:1px solid rgba(255,255,255,.16);color:var(--text-1)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow svg{transition:transform .22s var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;border-bottom:1px solid var(--line);background-image:linear-gradient(180deg,rgba(7,11,20,.94),rgba(7,11,20,.68) 58%,rgba(7,11,20,.97)),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center}
.article-hero__inner{padding:34px 0 52px;max-width:900px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:26px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary);border-bottom:1px solid var(--primary)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.breadcrumb .current{color:var(--text-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;border:1px solid rgba(255,183,51,.45);color:var(--accent);background:rgba(255,183,51,.06);clip-path:polygon(8px 0,100% 0,100% 100%,0 100%,0 8px)}
.tag--primary{border-color:rgba(34,224,184,.45);color:var(--primary);background:rgba(34,224,184,.07)}
.article-hero h1{font-size:clamp(28px,3.6vw,38px);line-height:1.24;font-weight:700;letter-spacing:-.01em;margin:18px 0 22px;max-width:820px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:13px;color:var(--text-2)}
.article-meta__item{display:inline-flex;align-items:center;gap:7px}
.article-meta__item svg{color:var(--primary);opacity:.9}
.article-meta__dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.article-tools{margin-left:auto;display:flex;gap:10px}
.icon-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);background:rgba(255,255,255,.03);transition:all .22s var(--ease)}
.icon-btn:hover{color:var(--primary);border-color:rgba(34,224,184,.45);transform:translateY(-2px)}

/* ---------- 布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 300px;gap:60px;justify-content:center;align-items:start;padding-top:56px;padding-bottom:88px}

/* ---------- 正文 ---------- */
.article-body{font-size:17px;line-height:1.95;color:#E9EFF7}
.article-body>*{max-width:760px}
.article-body p{margin:0 0 22px;color:#E9EFF7}
.article-body h2{position:relative;font-size:clamp(22px,2.3vw,26px);line-height:1.35;font-weight:700;margin:44px 0 18px;padding-left:18px}
.article-body h2::before{content:"";position:absolute;left:0;top:.42em;width:3px;height:16px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(34,224,184,.65)}
.article-body h3{font-size:20px;line-height:1.4;font-weight:600;margin:32px 0 14px}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 12px;color:var(--text-1)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:11px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.74em;width:5px;height:5px;background:var(--primary);border-radius:1px}
.article-body ol{counter-reset:art}
.article-body ol li{position:relative;padding-left:32px;margin-bottom:11px;counter-increment:art}
.article-body ol li::before{content:counter(art,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--primary);font-weight:700;font-size:15px;font-variant-numeric:tabular-nums}
.article-body blockquote{margin:26px 0;padding:20px 22px;border-left:3px solid var(--primary);border-radius:0 var(--r-img) var(--r-img) 0;background:rgba(255,255,255,.05);border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--text-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:8px 0 10px;width:100%}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-2);margin-top:10px}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(34,224,184,.4)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th{background:rgba(255,255,255,.05);text-align:left;padding:12px 14px;font-weight:600;color:var(--text-1)}
.article-body td{padding:12px 14px;border-top:1px solid var(--line);color:var(--text-2)}
.article-body strong{color:#fff;font-weight:600}
.article-body hr{border:0;height:1px;background:linear-gradient(90deg,rgba(34,224,184,0),rgba(34,224,184,.35),rgba(34,224,184,0));margin:40px 0}

/* ---------- 空态 ---------- */
.article-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:14px;min-height:260px;padding:48px 24px;border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(255,255,255,.04)}
.article-empty svg{color:rgba(34,224,184,.5)}
.article-empty__title{font-size:19px;font-weight:600}
.article-empty__desc{font-size:14px;color:var(--text-2);max-width:420px}

/* ---------- 文末 ---------- */
.article-foot{margin-top:46px;padding-top:28px;border-top:1px solid var(--line)}
.article-foot__label{font-size:13px;color:var(--text-3);margin-bottom:12px}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag-link{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;font-size:13px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03)}
.tag-link:hover{color:var(--primary);border-color:rgba(34,224,184,.45);transform:translateY(-2px)}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:28px}
.article-nav a{display:block;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r-md);background:rgba(255,255,255,.03);transition:all .22s var(--ease)}
.article-nav a:hover{border-color:rgba(255,255,255,.14);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.article-nav span{display:block;font-size:12px;color:var(--text-3);margin-bottom:6px}
.article-nav strong{display:block;font-size:15px;font-weight:600;color:var(--text-1);line-height:1.5}
.article-nav a:hover strong{color:var(--primary)}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:26px}
.side-card{border:1px solid var(--line);border-radius:var(--r-md);background:rgba(255,255,255,.04);padding:20px 20px 22px;box-shadow:var(--shadow-card)}
.side-card__title{font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--text-3);margin-bottom:16px;text-transform:uppercase}
.side-toc{position:relative;padding-left:14px;border-left:1px solid var(--line)}
.side-toc a{position:relative;display:block;font-size:14px;color:var(--text-2);padding:7px 0}
.side-toc a::before{content:"";position:absolute;left:-15px;top:50%;transform:translateY(-50%);width:5px;height:5px;border-radius:50%;background:var(--text-3);opacity:.6}
.side-toc a:hover,.side-toc a.is-current{color:var(--primary)}
.side-toc a:hover::before,.side-toc a.is-current::before{background:var(--primary);box-shadow:0 0 8px rgba(34,224,184,.85);opacity:1}
.side-list li+li{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.side-list a{display:flex;gap:12px;align-items:flex-start}
.side-list a:hover .side-list__title{color:var(--primary)}
.side-list__no{flex-shrink:0;font-size:15px;font-weight:700;color:var(--primary);opacity:.6;font-variant-numeric:tabular-nums;line-height:1.5}
.side-list__title{font-size:14px;line-height:1.55;color:var(--text-1)}
.side-list__time{display:block;font-size:12px;color:var(--text-3);margin-top:4px;font-variant-numeric:tabular-nums}
.side-cta{border:1px solid rgba(34,224,184,.45);border-radius:var(--r-md);padding:22px 20px;background:linear-gradient(160deg,rgba(34,224,184,.10),rgba(255,255,255,.02));box-shadow:0 12px 34px -18px rgba(34,224,184,.6)}
.side-cta h3{font-size:17px;font-weight:600;margin-bottom:8px}
.side-cta p{font-size:13px;color:var(--text-2);line-height:1.7;margin-bottom:16px}
.side-cta .btn{width:100%;height:44px}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section--tight{padding:72px 0}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section__head h2{font-size:clamp(24px,3vw,32px);line-height:1.25;font-weight:700}
.section__head p{font-size:14px;color:var(--text-2);margin-top:10px;max-width:560px}
.band{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- 相关推荐 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-md);background:rgba(255,255,255,.04);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.post-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.post-card__cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.post-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.post-card:hover .post-card__cover img{transform:scale(1.03)}
.post-card__body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-card__body h3{font-size:17px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__body p{font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-card__foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.post-card__foot svg{color:var(--primary)}

/* ---------- CTA ---------- */
.cta-band{position:relative;border:1px solid rgba(255,255,255,.10);border-radius:var(--r-lg);padding:44px 44px;background:linear-gradient(120deg,rgba(34,224,184,.10),rgba(7,11,20,.4) 60%),var(--bg-2);display:flex;align-items:center;justify-content:space-between;gap:32px;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(34,224,184,.22),transparent 65%);pointer-events:none}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.3;margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--text-2);max-width:560px}
.cta-band__actions{display:flex;gap:14px;flex-shrink:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-footer);border-top:1px solid var(--line);padding:66px 0 26px;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:0}
.footer__col{padding:0 28px;border-left:1px solid var(--line)}
.footer__col:first-child{padding-left:0;border-left:0}
.footer__col:last-child{padding-right:0}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer__brand .logo__text{font-size:16px}
.footer__col p{font-size:14px;line-height:1.85;color:var(--text-2);max-width:300px}
.footer__col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em}
.footer__links li+li{margin-top:11px}
.footer__links a{font-size:14px;color:var(--text-2)}
.footer__links a:hover{color:var(--primary)}
.footer__bottom{margin-top:52px;padding-top:20px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}

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

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:44px;padding-top:44px;padding-bottom:72px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side>*{flex:1 1 280px}
}
@media (max-width:1023px){
  .nav__links{display:none}
  .nav-toggle{display:inline-flex}
  .header__actions .btn:not(.nav-toggle){display:none}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr;gap:34px 0}
  .footer__col{padding:0 22px}
  .footer__col:nth-child(odd){padding-left:0;border-left:0}
  .footer__col:nth-child(even){padding-right:0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .article-hero__inner{padding:26px 0 38px}
  .article-tools{display:none}
  .article-nav{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .section{padding:60px 0}
  .section--tight{padding:52px 0}
  .article-body{font-size:16px;line-height:1.9}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .footer__grid{grid-template-columns:1fr}
  .footer__col{border-left:0;padding:0}
  .footer__col+.footer__col{padding-top:26px;border-top:1px solid var(--line);margin-top:26px}
  .footer__col:first-child{border-bottom:1px solid var(--line);padding-bottom:24px}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:8px;text-align:left}
  .cta-band__actions{width:100%;flex-direction:column}
  .cta-band__actions .btn{width:100%}
}
@media (max-width:520px){
  .article-hero h1{font-size:clamp(26px,7vw,30px)}
  .btn{width:100%;padding:0 18px}
  .btn--inline{width:auto}
  .post-card__body{padding:18px}
  .article-side>*{flex:1 1 100%}
}

/* roulang page: category2 */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --bg-2:#101A2E;
  --footer-bg:#05080F;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.05);
  --primary:#22E0B8;
  --primary-2:#0FB39A;
  --primary-soft:rgba(34,224,184,.10);
  --accent:#FFB733;
  --accent-2:#FF7A45;
  --danger:#FF5C7A;
  --text-1:#E9EFF7;
  --text-2:#98A7BC;
  --text-3:#5F6E86;
  --r-lg:22px;
  --r-md:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-card:0 12px 32px -18px rgba(0,0,0,.9);
  --shadow-hover:0 26px 60px -22px rgba(0,0,0,.95);
  --glow:0 0 0 1px rgba(34,224,184,.45), 0 12px 34px -10px rgba(34,224,184,.5);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),opacity var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-family:"Barlow Condensed","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums;letter-spacing:.02em}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.band{padding:104px 0}
.band--tight{padding:72px 0}
.band--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.track-line{height:1px;background:linear-gradient(90deg,transparent,rgba(34,224,184,.22),transparent)}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.42);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),height var(--ease);
}
.site-header.is-stuck{
  background:rgba(7,11,20,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.nav{display:flex;align-items:center;height:72px;gap:28px}
.site-header.is-stuck .nav{height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{
  width:22px;height:22px;border-radius:7px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 1px rgba(34,224,184,.4),0 8px 20px -10px rgba(34,224,184,.8);
  position:relative;
}
.logo__mark::after{content:"";position:absolute;inset:6px;border-radius:3px;background:rgba(7,11,20,.85)}
.logo__text{font-size:17px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.nav__divider{width:1px;height:22px;background:rgba(255,255,255,.08);flex:0 0 auto}
.nav__links{display:flex;align-items:center;gap:34px;margin-left:2px}
.nav__links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;
}
.nav__links a::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:1px;background:var(--primary);
  transform:translateX(-50%);transition:width var(--ease);
}
.nav__links a:hover{color:var(--text-1)}
.nav__links a:hover::after{width:100%}
.nav__links a.is-active{color:var(--text-1)}
.nav__links a.is-active::after{width:18px;height:3px;border-radius:999px;background:var(--primary-soft)}
.nav__links a.is-active::before{
  content:"";position:absolute;left:50%;bottom:-9px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);transform:translateX(-50%);box-shadow:0 0 10px rgba(34,224,184,.8);
}
.nav__spacer{flex:1 1 auto}
.nav__cta{display:flex;align-items:center;gap:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease),opacity var(--ease);
}
.btn--primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04140F;
  box-shadow:var(--glow);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(34,224,184,.6),0 18px 42px -12px rgba(34,224,184,.6)}
.btn--primary:active{transform:scale(.985);box-shadow:0 0 0 1px rgba(34,224,184,.35)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.16);color:var(--text-1)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn--sm{height:42px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:14px;font-weight:600}
.link-arrow svg{transition:transform var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}
.nav__toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:transparent;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav__toggle span{display:block;width:16px;height:1px;background:var(--text-1);transition:transform var(--ease),opacity var(--ease)}
.nav__drawer{
  position:fixed;inset:60px 0 0;z-index:55;background:#080D18;
  padding:32px 24px 40px;display:none;flex-direction:column;gap:6px;
  overflow-y:auto;
}
.nav__drawer.is-open{display:flex}
.nav__drawer a{
  font-size:19px;font-weight:600;color:var(--text-1);padding:16px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(8px);animation:drawerIn .36s var(--ease) forwards;
}
.nav__drawer a.is-active{color:var(--primary)}
.nav__drawer .drawer-cta{margin-top:28px;border:0;animation-delay:.18s}
@keyframes drawerIn{to{opacity:1;transform:none}}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(7,11,20,.94),rgba(7,11,20,.66) 55%,rgba(7,11,20,.97)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;z-index:0;
}
.hero__inner{position:relative;z-index:1;padding:88px 0 96px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{color:var(--text-3)}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(255,183,51,.4);background:transparent;color:var(--accent);
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.hero h1{font-size:clamp(34px,5.2vw,56px);line-height:1.12;letter-spacing:-.02em;margin:22px 0 20px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero__sub{font-size:17px;line-height:1.9;color:var(--text-2);max-width:620px}
.hero__acts{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero__facts{margin-top:38px;display:flex;flex-wrap:wrap;gap:26px}
.hero__facts div{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2)}
.hero__facts i{width:5px;height:5px;border-radius:50%;background:var(--primary);display:block}
.panel{
  background:rgba(11,18,32,.72);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-lg);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.panel__media{aspect-ratio:5/4;position:relative;overflow:hidden;background:var(--bg-2)}
.panel__media img{width:100%;height:100%;object-fit:cover;opacity:.92}
.panel__body{padding:22px 22px 24px;background:rgba(7,11,20,.55);border-top:1px solid var(--line)}
.panel__body h3{font-size:17px;margin-bottom:12px}
.panel__rows li{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--text-2)}
.panel__rows li:last-child{border-bottom:0}
.panel__rows b{color:var(--primary);font-size:20px;font-weight:600}
.progress-thin{height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),rgba(34,224,184,0));margin-top:14px}

/* ============ SECTION HEAD ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.sec-head h2{font-size:clamp(26px,3.2vw,36px);max-width:720px}
.sec-head p{margin-top:14px;color:var(--text-2);max-width:640px;font-size:15px}
.sec-tag{font-size:13px;color:var(--accent);letter-spacing:.12em;font-weight:600;margin-bottom:12px;display:block}

/* ============ 列表条 ============ */
.rows{border-top:1px solid var(--line)}
.row{
  display:grid;grid-template-columns:96px 1fr auto;gap:28px;align-items:center;
  min-height:118px;padding:24px 18px;border-bottom:1px solid var(--line);
  transition:background var(--ease),transform var(--ease);
}
.row:hover{background:rgba(255,255,255,.03)}
.row__idx{font-size:44px;line-height:1;color:rgba(34,224,184,.35);font-weight:600}
.row:hover .row__idx{color:rgba(34,224,184,.6)}
.row__title{font-size:20px;font-weight:600;margin-bottom:8px;transition:color var(--ease)}
.row:hover .row__title{color:var(--primary)}
.row__desc{font-size:14.5px;color:var(--text-2);max-width:760px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row__meta{display:flex;align-items:center;gap:18px;color:var(--text-3)}
.row__meta .freq{font-size:14px;color:var(--text-2);white-space:nowrap}
.row__meta svg{transition:transform var(--ease)}
.row:hover .row__meta svg{transform:translateX(4px);color:var(--primary)}

/* ============ 数据 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:8px 28px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-size:clamp(38px,4.6vw,52px);font-weight:600;color:var(--primary);line-height:1.05}
.stat span{display:block;margin-top:10px;font-size:13px;color:var(--text-2)}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow__item{position:relative;padding-top:26px;border-top:1px solid var(--line)}
.flow__item::before{content:"";position:absolute;top:-3px;left:0;width:5px;height:5px;border-radius:50%;background:var(--primary)}
.flow__item h3{font-size:18px;margin:14px 0 10px}
.flow__item p{font-size:14.5px;color:var(--text-2)}
.flow__no{font-size:32px;color:rgba(34,224,184,.5);font-weight:600}

/* ============ 图文区块 ============ */
.scene{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:56px 0}
.scene+.scene{border-top:1px solid var(--line)}
.scene--reverse .scene__media{order:2}
.scene__media{aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--bg-2)}
.scene__media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.scene:hover .scene__media img{transform:scale(1.03)}
.scene__body h3{font-size:clamp(22px,2.4vw,28px);margin-bottom:16px}
.scene__body p{color:var(--text-2);font-size:15.5px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  border:1px solid rgba(255,183,51,.38);color:var(--accent);font-size:12.5px;font-weight:600;margin-bottom:16px;
}
.ticks{margin:22px 0 26px;display:grid;gap:12px}
.ticks li{display:flex;gap:12px;font-size:15px;color:var(--text-2)}
.ticks li::before{content:"";flex:0 0 auto;width:5px;height:5px;margin-top:11px;background:var(--primary)}

/* ============ FAQ ============ */
.faq{max-width:760px;margin:0 auto;border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{
  width:100%;background:none;border:0;text-align:left;color:var(--text-1);
  min-height:52px;padding:18px 40px 18px 0;font-size:16.5px;font-weight:600;position:relative;
  transition:color var(--ease);
}
.faq__q:hover{color:var(--primary)}
.faq__q::after{
  content:"";position:absolute;right:6px;top:50%;width:12px;height:12px;transform:translateY(-50%);
  background:
    linear-gradient(var(--primary),var(--primary)) center/12px 1px no-repeat,
    linear-gradient(var(--primary),var(--primary)) center/1px 12px no-repeat;
  transition:transform var(--ease);
}
.faq__item.is-open .faq__q::after{transform:translateY(-50%) rotate(45deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq__a p{padding:0 0 22px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:700px}
.faq__item.is-open .faq__a{max-height:460px}

/* ============ CTA / 表单 ============ */
.cta{
  border:1px solid rgba(34,224,184,.35);
  border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(34,224,184,.08),rgba(11,18,32,.7) 45%,rgba(11,18,32,.9));
  padding:48px;
  display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center;
}
.cta h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:14px}
.cta p{color:var(--text-2);font-size:15.5px;max-width:640px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.field{display:grid;gap:8px;margin-bottom:18px}
.field label{font-size:13px;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.03);border:1px solid var(--line-strong);
  border-radius:var(--r-input);padding:13px 14px;font-size:15px;color:var(--text-1);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:118px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(34,224,184,.18);
}
.field .hint{font-size:12px;color:var(--text-3)}
.info-card{
  background:var(--glass);border:1px solid rgba(255,255,255,.10);border-radius:var(--r-md);
  padding:28px;backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.info-card ul li{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--text-2)}
.info-card ul li:last-child{border-bottom:0}
.info-card b{color:var(--text-1);font-weight:600}
.info-card .split{height:1px;background:var(--line);margin:18px 0}

/* ============ FOOTER ============ */
.site-footer{background:var(--footer-bg);border-top:1px solid var(--line);padding:72px 0 0;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:0}
.footer__col{padding:0 30px;border-left:1px solid var(--line)}
.footer__col:first-child{border-left:0;padding-left:0}
.footer__col h4{font-size:15px;margin-bottom:18px}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer__col p{font-size:14px;color:var(--text-2);line-height:1.8;max-width:340px}
.footer__links li{margin-bottom:12px}
.footer__links a{font-size:14px;color:var(--text-2)}
.footer__links a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.footer__bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero__grid{grid-template-columns:1fr;gap:44px}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px}
  .footer__grid{grid-template-columns:1fr 1fr;row-gap:40px}
  .footer__col{padding:0 22px}
  .footer__col:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:1023px){
  .nav__links{display:none}
  .nav__divider{display:none}
  .nav__toggle{display:flex}
  .band{padding:76px 0}
  .scene{grid-template-columns:1fr;gap:30px;padding:44px 0}
  .scene--reverse .scene__media{order:0}
  .stats{grid-template-columns:repeat(2,1fr);row-gap:34px}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .cta{grid-template-columns:1fr;padding:36px}
  .form-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .band{padding:56px 0}
  .hero__inner{padding:56px 0 64px}
  .hero__facts{gap:16px}
  .row{grid-template-columns:1fr;gap:12px;padding:22px 4px}
  .row__idx{font-size:30px}
  .row__meta{justify-content:space-between}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:30px}
  .flow{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .footer__col{border-left:0;padding:0;border-top:1px solid var(--line);padding-top:26px;margin-top:26px}
  .footer__col:first-child{border-top:0;padding-top:0;margin-top:0}
  .footer__bottom{flex-direction:column;gap:8px}
  .nav{height:60px;gap:14px}
  .site-header.is-stuck .nav{height:60px}
  .logo__text{font-size:16px}
}
@media (max-width:520px){
  .hero h1{font-size:30px}
  .btn{width:100%}
  .hero__acts{flex-direction:column}
  .nav__cta .btn{width:auto;height:40px;padding:0 14px;font-size:13.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --bg-2:#101A2E;
  --bg-footer:#05080F;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.05);
  --primary:#22E0B8;
  --primary-2:#0FB39A;
  --accent:#FFB733;
  --accent-2:#FF7A45;
  --danger:#FF5C7A;
  --text-1:#E9EFF7;
  --text-2:#98A7BC;
  --text-3:#5F6E86;
  --radius-lg:22px;
  --radius:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-card:0 12px 32px -18px rgba(0,0,0,.9);
  --shadow-hover:0 26px 60px -22px rgba(0,0,0,.95);
  --glow:0 0 0 1px rgba(34,224,184,.45),0 12px 34px -10px rgba(34,224,184,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(34,224,184,.28);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-stuck{
  background:rgba(7,11,20,.72);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.header__inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .28s var(--ease)}
.site-header.is-stuck .header__inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{
  width:24px;height:24px;border-radius:7px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 1px rgba(34,224,184,.35),0 6px 18px -8px rgba(34,224,184,.9);
  position:relative;
}
.logo__mark::after{
  content:"";position:absolute;inset:7px;border-radius:3px;
  background:rgba(7,11,20,.85);
}
.logo__text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--text-1)}
.header__divider{width:1px;height:22px;background:rgba(255,255,255,.08);flex:0 0 auto}
.nav__links{flex:1;display:flex;justify-content:center;align-items:center;gap:34px}
.nav__links a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 2px;
  transition:color .22s var(--ease);
}
.nav__links a::before{
  content:"";position:absolute;left:50%;bottom:-8px;transform:translateX(-50%);
  width:0;height:1px;border-radius:999px;background:var(--primary);
  transition:width .28s var(--ease),height .28s var(--ease),background .28s var(--ease);
}
.nav__links a::after{
  content:"";position:absolute;left:50%;top:-8px;transform:translateX(-50%) scale(.4);
  width:6px;height:6px;border-radius:50%;background:var(--primary);
  opacity:0;transition:opacity .28s var(--ease),transform .28s var(--ease);
  box-shadow:0 0 10px rgba(34,224,184,.9);
}
.nav__links a:hover{color:var(--text-1)}
.nav__links a:hover::before{width:100%}
.nav__links a.is-active{color:var(--text-1)}
.nav__links a.is-active::before{width:18px;height:3px;background:rgba(34,224,184,.10)}
.nav__links a.is-active::after{opacity:1;transform:translateX(-50%) scale(1)}
.header__cta{flex:0 0 auto;display:flex;align-items:center}

.nav-burger{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  flex-direction:column;gap:6px;transition:border-color .22s var(--ease);
}
.nav-burger:hover{border-color:var(--line-strong)}
.nav-burger__line{display:block;width:16px;height:1px;background:var(--text-1);transition:transform .3s var(--ease),opacity .3s var(--ease)}
.nav-burger.is-open .nav-burger__line:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.nav-burger.is-open .nav-burger__line:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}

.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:60px;bottom:0;z-index:55;
  background:#070B14;padding:22px 18px 32px;flex-direction:column;justify-content:space-between;
  border-top:1px solid var(--line);
}
.mobile-drawer.is-open{display:flex}
.mobile-drawer__links{display:flex;flex-direction:column}
.mobile-drawer__links a{
  font-size:17px;font-weight:500;color:var(--text-2);
  padding:16px 4px;border-bottom:1px solid var(--line);
}
.mobile-drawer__links a.is-active{color:var(--primary)}
.mobile-drawer.is-open .mobile-drawer__links a{animation:drawerIn .36s var(--ease) both}
.mobile-drawer__links a:nth-child(1){animation-delay:40ms}
.mobile-drawer__links a:nth-child(2){animation-delay:80ms}
.mobile-drawer__links a:nth-child(3){animation-delay:120ms}
.mobile-drawer__links a:nth-child(4){animation-delay:160ms}
@keyframes drawerIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.mobile-drawer__cta{margin-top:26px;width:100%;justify-content:center}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease),opacity .22s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04140F;
  box-shadow:var(--glow);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(34,224,184,.6),0 18px 42px -12px rgba(34,224,184,.6)}
.btn--primary:active{transform:scale(.985);box-shadow:0 0 0 1px rgba(34,224,184,.4),0 8px 20px -10px rgba(34,224,184,.4)}
.btn--ghost{
  background:transparent;border:1px solid var(--line-strong);color:var(--text-1);
}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn--ghost:active{transform:scale(.985)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--text-1);font-size:14px;font-weight:600;
  border-bottom:1px solid transparent;transition:color .22s var(--ease),border-color .22s var(--ease);
}
.link-arrow::after{content:"→";transition:transform .22s var(--ease);color:var(--primary)}
.link-arrow:hover{color:var(--primary);border-bottom-color:var(--primary)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:88px 0 64px}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(7,11,20,.94) 0%,rgba(7,11,20,.74) 55%,rgba(7,11,20,.97) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero__inner{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:26px}
.breadcrumb a{color:var(--text-2);transition:color .22s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span[aria-hidden]{color:var(--text-3)}
.breadcrumb .is-current{color:var(--text-2)}
.page-hero h1{
  font-size:clamp(34px,5.2vw,60px);line-height:1.12;letter-spacing:-.02em;font-weight:700;
  max-width:900px;
}
.page-hero__sub{
  margin-top:22px;max-width:640px;color:var(--text-2);font-size:16px;line-height:1.9;
}
.hero__meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.tag-pill{
  display:inline-flex;align-items:center;
  height:32px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(255,183,51,.45);color:var(--accent);
  font-size:13px;letter-spacing:.02em;background:transparent;
}
.tag-pill--mint{border-color:rgba(34,224,184,.45);color:var(--primary)}

/* Filter pills */
.filter-bar{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;padding-top:32px;border-top:1px solid var(--line)}
.filter-pill{
  height:38px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line-strong);background:transparent;color:var(--text-2);
  font-size:14px;transition:all .22s var(--ease);
}
.filter-pill:hover{color:var(--text-1);border-color:rgba(34,224,184,.5)}
.filter-pill.is-active{
  color:var(--primary);border-color:var(--primary);background:rgba(34,224,184,.10);
}

/* ============ Sections ============ */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);
  margin-bottom:16px;
}
.section-head__eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);display:block;opacity:.7}
.section-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.2;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.9}
.track-line{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,rgba(34,224,184,.35),transparent);
}

/* ============ QA grid ============ */
.qa-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.qa-card{
  position:relative;display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.qa-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.14);box-shadow:var(--shadow-hover)}
.qa-card__icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(34,224,184,.08);border:1px solid rgba(34,224,184,.28);color:var(--primary);
  margin-bottom:20px;
}
.qa-card__icon svg{width:22px;height:22px}
.qa-card__cat{
  font-size:12px;color:var(--accent);letter-spacing:.06em;
  border:1px solid rgba(255,183,51,.35);border-radius:999px;padding:3px 10px;align-self:flex-start;
  margin-bottom:14px;
}
.qa-card h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:12px}
.qa-card p{color:var(--text-2);font-size:15px;line-height:1.85;margin-bottom:22px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.qa-card .link-arrow{margin-top:auto}
.qa-card.is-hidden{display:none}

/* ============ Checklist with image ============ */
.split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:64px;align-items:center}
.split__media{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:5/4;background:var(--bg-2);
  box-shadow:var(--shadow-card);
}
.split__media img{width:100%;height:100%;object-fit:cover}
.split__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05),rgba(7,11,20,.55));
}
.checklist{display:flex;flex-direction:column}
.checklist li{
  display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);
}
.checklist li:first-child{padding-top:0}
.checklist li:last-child{border-bottom:0;padding-bottom:0}
.checklist .dot{
  flex:0 0 auto;width:5px;height:5px;border-radius:1px;background:var(--primary);margin-top:12px;
  box-shadow:0 0 10px rgba(34,224,184,.8);
}
.checklist h4{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:6px}
.checklist p{color:var(--text-2);font-size:15px;line-height:1.85}

/* ============ Stats band ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{
  padding:8px 32px;border-left:1px solid var(--line);
}
.stat:first-child{border-left:0;padding-left:0}
.stat__num{
  font-family:"Barlow Condensed","DIN Alternate","HarmonyOS Sans SC",var(--font-cn);
  font-variant-numeric:tabular-nums;font-size:clamp(40px,4.4vw,56px);
  line-height:1;font-weight:700;color:var(--primary);letter-spacing:-.01em;
}
.stat__num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--primary);opacity:.8}
.stat__label{margin-top:12px;font-size:13px;color:var(--text-2);letter-spacing:.02em}
.stat__bar{margin-top:18px;height:2px;width:100%;border-radius:2px;background:linear-gradient(90deg,rgba(34,224,184,.85),rgba(34,224,184,0))}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:16px 0;font-size:17px;font-weight:600;color:var(--text-1);
  transition:color .22s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item__icon{position:relative;flex:0 0 auto;width:14px;height:14px}
.faq-item__icon::before,
.faq-item__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transition:transform .3s var(--ease);
}
.faq-item__icon::before{width:14px;height:1px;transform:translate(-50%,-50%)}
.faq-item__icon::after{width:1px;height:14px;transform:translate(-50%,-50%)}
.faq-item[open] .faq-item__icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item__a{padding:0 0 26px;max-width:760px}
.faq-item__a p{color:var(--text-2);font-size:15px;line-height:1.95}
.faq-item__a p + p{margin-top:14px}

/* ============ CTA band ============ */
.cta-band{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(34,224,184,.35);
  background:
    linear-gradient(135deg,rgba(34,224,184,.10),rgba(7,11,20,.2) 45%,rgba(255,183,51,.06)),
    var(--bg-1);
  padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  box-shadow:var(--shadow-card);
}
.cta-band__text{max-width:620px}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);line-height:1.25;font-weight:700}
.cta-band p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.9}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto}
.cta-info{display:flex;flex-wrap:wrap;gap:28px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.cta-info div{font-size:13px;color:var(--text-2)}
.cta-info strong{display:block;color:var(--text-1);font-size:14px;margin-bottom:2px;font-weight:600}

/* ============ Footer ============ */
.site-footer{background:var(--bg-footer);border-top:1px solid var(--line);padding:72px 0 28px;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:0}
.footer__col{padding:0 32px;border-left:1px solid var(--line)}
.footer__col:first-child{border-left:0;padding-left:0}
.footer__col:last-child{padding-right:0}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer__brand .logo__text{font-size:16px;font-weight:600}
.footer__col p{color:var(--text-2);font-size:14px;line-height:1.9;max-width:320px}
.footer__col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:18px;letter-spacing:.02em}
.footer__links li{margin-bottom:12px}
.footer__links a{color:var(--text-2);font-size:14px;transition:color .22s var(--ease)}
.footer__links a:hover{color:var(--primary)}
.footer__bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ============ Motion ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ============ Responsive ============ */
@media (max-width:1279px){
  .qa-grid{grid-template-columns:repeat(2,1fr)}
  .split{gap:44px}
}
@media (max-width:1023px){
  .nav__links,.header__divider,.header__cta{display:none}
  .nav-burger{display:flex}
  .header__inner{height:60px;justify-content:space-between}
  .site-header.is-stuck .header__inner{height:60px}
  .page-hero{padding:64px 0 52px}
  .section{padding:72px 0}
  .qa-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:36px}
  .split__media{aspect-ratio:16/9}
  .stats{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .stat{padding:0 24px}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px 0}
  .footer__col{padding:0 24px}
  .footer__col:nth-child(odd){border-left:0;padding-left:0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .qa-grid{grid-template-columns:1fr}
  .page-hero{padding:48px 0 44px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .stats{grid-template-columns:1fr;gap:28px 0}
  .stat{border-left:0;padding:0;border-top:1px solid var(--line);padding-top:24px}
  .stat:first-child{border-top:0;padding-top:0}
  .footer__grid{grid-template-columns:1fr;gap:32px 0}
  .footer__col{border-left:0;padding:0}
  .footer__col:first-child{padding-bottom:28px;border-bottom:1px solid var(--line)}
  .cta-band{padding:32px 22px;border-radius:var(--radius)}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 100%}
  .faq-item summary{font-size:16px}
}
@media (max-width:520px){
  .page-hero h1{font-size:30px}
  .btn{width:100%;padding:0 18px}
  .btn--sm{width:auto}
  .cta-info{gap:18px}
}