/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --bg:#070C14;
  --bg-2:#0C1523;
  --surface:#111C2B;
  --surface-2:#162436;
  --line:rgba(120,180,255,.14);
  --line-strong:rgba(23,224,176,.40);
  --primary:#17E0B0;
  --primary-2:#0FB6E8;
  --accent:#FF5A2B;
  --accent-2:#FFC53D;
  --text:#EAF2FF;
  --text-2:#A8B8CE;
  --text-3:#6E8099;
  --ok:#2BD97C;
  --err:#FF6B6B;
  --r-card:16px;
  --r-block:24px;
  --r-img:12px;
  --r-input:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-lg:0 18px 48px rgba(0,0,0,.45);
  --container:1200px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Barlow Semi Condensed","Arial Narrow",var(--font-cn);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;border:0}
a{color:inherit;text-decoration:none;transition:color .22s ease}
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}
table{border-collapse:collapse;border-spacing:0;width:100%}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
::selection{background:rgba(23,224,176,.3);color:#fff}

/* ============ 布局容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x > .cell{padding-left:12px;padding-right:12px;width:100%;flex:0 0 auto;min-width:0}
.small-12{width:100%}
@media screen and (min-width:768px){
  .medium-6{width:50%}
  .medium-4{width:33.3333%}
}
@media screen and (min-width:1024px){
  .large-3{width:25%}
  .large-4{width:33.3333%}
  .large-6{width:50%}
  .large-7{width:58.3333%}
  .large-8{width:66.6667%}
}

/* ============ 通用排版 ============ */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:48px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow i{display:block;width:22px;height:2px;background:linear-gradient(90deg,var(--primary),var(--primary-2));border-radius:2px}
h2.section-title{
  font-size:32px;line-height:1.25;font-weight:800;letter-spacing:.01em;
  margin-bottom:14px;
}
.section-desc{font-size:16px;line-height:1.85;color:var(--text-2)}
.text-2{color:var(--text-2)}
.text-3{color:var(--text-3)}
.num{font-family:var(--font-num);font-feature-settings:"tnum";letter-spacing:.04em}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn:active{transform:translateY(1px)}
.btn--primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04140F;
  box-shadow:0 0 0 1px rgba(23,224,176,.35),0 10px 30px rgba(23,224,176,.22);
}
.btn--primary:hover{
  filter:brightness(1.05);
  box-shadow:0 0 0 1px rgba(23,224,176,.55),0 14px 34px rgba(23,224,176,.32);
  transform:translateY(-1px);
}
.btn--accent{
  background:linear-gradient(135deg,var(--accent),#FF7A45);
  color:#160603;
  box-shadow:0 0 0 1px rgba(255,90,43,.35),0 10px 30px rgba(255,90,43,.24);
}
.btn--accent:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,90,43,.55),0 14px 34px rgba(255,90,43,.34)}
.btn--outline{
  border-color:rgba(120,180,255,.28);
  color:var(--text);
  background:rgba(255,255,255,.02);
}
.btn--outline:hover{border-color:var(--line-strong);color:var(--primary);transform:translateY(-1px)}
.btn--ghost{color:var(--text-2);border-color:transparent;padding:0 14px}
.btn--ghost:hover{color:var(--primary)}
.btn--dark{background:#070C14;color:#fff;border-color:rgba(0,0,0,.25)}
.btn--dark:hover{background:#0C1523;transform:translateY(-1px);box-shadow:var(--shadow)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}

/* ============ 通知条 ============ */
.notice{
  position:relative;
  background:linear-gradient(90deg,rgba(23,224,176,.14),rgba(15,182,232,.08) 55%,rgba(7,12,20,0));
  border-bottom:1px solid var(--line);
  font-size:13px;
}
.notice__inner{
  display:flex;align-items:center;gap:16px;
  height:36px;
}
.notice__text{
  flex:1 1 auto;min-width:0;
  color:var(--text-2);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.notice__text b{color:var(--primary);font-weight:600}
.notice__link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text);font-weight:600;flex:0 0 auto;
}
.notice__link:hover{color:var(--primary)}
.notice__close{
  flex:0 0 auto;width:24px;height:24px;line-height:1;
  border-radius:50%;color:var(--text-3);font-size:16px;
  display:flex;align-items:center;justify-content:center;
  transition:background-color .2s ease,color .2s ease;
}
.notice__close:hover{background:rgba(255,255,255,.08);color:var(--text)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(7,12,20,.82);
  border-bottom:1px solid var(--line);
  transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(7,12,20,.96);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
  border-bottom-color:rgba(120,180,255,.22);
}
.site-header__inner{
  display:flex;align-items:center;gap:28px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  display:inline-flex;align-items:flex-end;gap:3px;
  width:32px;height:32px;padding:6px;
  border-radius:9px;
  background:linear-gradient(140deg,rgba(23,224,176,.22),rgba(15,182,232,.10));
  border:1px solid rgba(23,224,176,.35);
  transform:skewX(-8deg);
}
.brand__mark i{display:block;width:4px;border-radius:1px;background:linear-gradient(180deg,var(--primary),var(--primary-2))}
.brand__mark i:nth-child(1){height:9px;opacity:.55}
.brand__mark i:nth-child(2){height:14px;opacity:.8}
.brand__mark i:nth-child(3){height:19px}
.brand__text{
  font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--text);
  display:inline-flex;align-items:baseline;gap:4px;
}
.brand__text em{
  font-style:normal;font-size:11px;font-weight:600;
  color:var(--primary);
  border:1px solid rgba(23,224,176,.4);
  border-radius:4px;
  padding:0 4px;
  line-height:16px;
  margin-left:2px;
  letter-spacing:.04em;
}
.brand__latin{color:var(--text-2);font-weight:700;font-size:15px}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.main-nav a{
  position:relative;
  padding:8px 12px;
  font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:8px;
  transition:color .2s ease,background-color .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.main-nav a:hover{color:var(--text)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--text);font-weight:600}
.main-nav a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 移动端抽屉 */
.nav-mask{
  position:fixed;inset:0;background:rgba(3,7,13,.7);
  backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
  z-index:95;
}
.nav-mask.is-open{opacity:1;visibility:visible}
.mobile-nav{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);
  background:var(--bg-2);
  border-left:1px solid var(--line);
  padding:88px 24px 28px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  z-index:96;
  overflow-y:auto;
}
.mobile-nav.is-open{transform:translateX(0)}
.mobile-nav__title{font-size:13px;letter-spacing:.1em;color:var(--text-3);margin-bottom:6px}
.mobile-nav a{
  display:block;padding:14px 12px;border-radius:12px;
  font-size:15px;font-weight:500;color:var(--text-2);
  border:1px solid transparent;
}
.mobile-nav a:hover,.mobile-nav a.is-active{
  color:var(--text);background:rgba(23,224,176,.08);border-color:rgba(23,224,176,.28);
}
.mobile-nav .btn{margin-top:18px}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--bg-2);
  padding:104px 0 112px;
}
.hero__bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.5;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(95deg,rgba(7,12,20,.97) 0%,rgba(7,12,20,.9) 40%,rgba(7,12,20,.55) 72%,rgba(7,12,20,.8) 100%);
}
.hero__inner{position:relative;z-index:2}
.hero__copy{max-width:660px}
.hero h1{
  font-size:52px;line-height:1.16;font-weight:800;letter-spacing:.01em;
  margin-bottom:20px;
}
.hero h1 span{color:var(--primary)}
.hero__sub{
  font-size:17px;line-height:1.85;color:var(--text-2);
  max-width:560px;margin-bottom:32px;
}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px}
.hero__note{font-size:13px;color:var(--text-3)}
.hero__stats{
  position:absolute;right:24px;bottom:-88px;
  display:flex;align-items:stretch;gap:0;
  padding:20px 8px;
  border-radius:var(--r-block);
  background:rgba(17,28,43,.62);
  border:1px solid rgba(120,180,255,.20);
  box-shadow:var(--shadow-lg);
  backdrop-filter:blur(12px);
  max-width:520px;
}
.hero__stat{
  padding:0 22px;
  border-left:1px solid rgba(120,180,255,.16);
  min-width:0;
}
.hero__stat:first-child{border-left:0}
.hero__stat b{
  display:block;font-family:var(--font-num);
  font-size:30px;line-height:1.1;color:var(--text);
  letter-spacing:.04em;font-weight:700;
}
.hero__stat b span{font-size:15px;color:var(--primary);margin-left:2px}
.hero__stat small{display:block;font-size:12px;color:var(--text-3);margin-top:6px;letter-spacing:.02em}
@supports not (backdrop-filter:blur(1px)){
  .hero__stats{background:rgba(12,21,35,.96)}
}

/* ============ 指标条 ============ */
.metrics{
  padding:56px 0 56px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,21,35,.6),rgba(7,12,20,0));
}
.metrics__grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;
  margin-top:56px;
}
.metric{
  padding:0 28px;
  border-left:1px solid var(--line);
}
.metric:first-child{border-left:0;padding-left:0}
.metric b{
  display:block;font-family:var(--font-num);
  font-size:38px;line-height:1.1;font-weight:700;
  color:var(--primary);letter-spacing:.04em;
}
.metric span{display:block;font-size:14px;color:var(--text-2);margin-top:8px}

/* ============ 阶梯 ============ */
.ladder{display:flex;flex-direction:column;gap:16px}
.ladder__item{
  display:flex;align-items:flex-start;gap:24px;
  padding:26px 28px;
  border-radius:var(--r-block);
  background:var(--surface);
  border:1px solid var(--line);
  margin-left:calc(var(--i,0) * 24px);
  transition:border-color .25s ease,transform .25s ease,background-color .25s ease;
}
.ladder__item:hover{
  border-color:var(--line-strong);
  background:var(--surface-2);
  transform:translateX(4px);
}
.ladder__num{
  font-family:var(--font-num);
  font-size:44px;line-height:1;font-weight:700;
  color:rgba(23,224,176,.22);
  letter-spacing:.02em;flex:0 0 auto;
}
.ladder__body{flex:1 1 auto;min-width:0}
.ladder__body h3{font-size:20px;font-weight:700;margin-bottom:8px;line-height:1.4}
.ladder__body > p{font-size:14px;color:var(--text-2);margin-bottom:14px}
.ladder__list{display:flex;flex-wrap:wrap;gap:8px 10px}
.ladder__list li{
  font-size:13px;color:var(--text-2);
  padding:5px 12px;border-radius:999px;
  background:rgba(23,224,176,.07);
  border:1px solid rgba(23,224,176,.20);
}
.ladder__more{
  flex:0 0 auto;align-self:center;
  font-size:14px;font-weight:600;color:var(--primary);
  white-space:nowrap;
}
.ladder__more:hover{color:var(--primary-2)}

/* ============ 对比表 ============ */
.table-scroll{
  border-radius:var(--r-block);
  border:1px solid var(--line);
  background:var(--surface);
  overflow:hidden;
}
.compare{font-size:14px;min-width:720px}
.compare th,.compare td{
  padding:16px 20px;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:middle;
}
.compare thead th{
  font-size:15px;font-weight:700;color:var(--text);
  background:rgba(12,21,35,.9);
  padding-top:22px;padding-bottom:22px;
}
.compare thead th small{display:block;font-size:12px;font-weight:400;color:var(--text-3);margin-top:4px}
.compare thead th .badge{display:inline-block;margin-left:8px;vertical-align:middle}
.compare tbody tr:hover td{background:rgba(23,224,176,.04)}
.compare td:first-child{font-weight:600;color:var(--text)}
.compare tbody td{color:var(--text-2)}
.compare th.is-featured,.compare td.is-featured{
  background:rgba(23,224,176,.06);
  border-left:1px solid rgba(23,224,176,.30);
  border-right:1px solid rgba(23,224,176,.30);
}
.compare thead th.is-featured{
  background:linear-gradient(180deg,rgba(23,224,176,.16),rgba(23,224,176,.05));
  color:var(--primary);
}
.compare tfoot td{
  border-bottom:0;
  padding-top:22px;padding-bottom:22px;
  background:rgba(12,21,35,.55);
}
.compare .price{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--text);letter-spacing:.04em}
.compare .price i{font-style:normal;font-size:12px;color:var(--text-3);margin-left:4px;font-family:var(--font-cn);font-weight:400}
.badge{
  display:inline-block;font-size:11px;font-weight:700;
  padding:3px 9px;border-radius:999px;
  letter-spacing:.04em;
}
.badge--primary{background:rgba(23,224,176,.16);color:var(--primary);border:1px solid rgba(23,224,176,.4)}
.badge--accent{background:rgba(255,197,61,.16);color:var(--accent-2);border:1px solid rgba(255,197,61,.4)}

/* ============ 限时横幅 ============ */
.banner{
  position:relative;
  padding:56px 0;
  background:linear-gradient(100deg,#FF5A2B 0%,#FF7A45 42%,#17E0B0 100%);
  overflow:hidden;
}
.banner::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.07) 0 2px,transparent 2px 22px);
  opacity:.6;
}
.banner__inner{
  position:relative;z-index:2;
  display:flex;align-items:center;gap:36px;flex-wrap:wrap;
}
.banner__left{flex:1 1 320px;min-width:0}
.banner__tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;
  padding:4px 12px;border-radius:999px;
  background:rgba(7,12,20,.28);color:#fff;
  margin-bottom:14px;
}
.banner h2{font-size:30px;line-height:1.25;font-weight:800;color:#0A1522;margin-bottom:10px}
.banner__left p{font-size:15px;color:rgba(8,18,28,.78);max-width:520px}
.countdown{display:flex;gap:10px;flex:0 0 auto}
.countdown__cell{
  width:64px;padding:10px 0;
  border-radius:12px;
  background:rgba(7,12,20,.86);
  text-align:center;
  box-shadow:0 8px 22px rgba(0,0,0,.28);
}
.countdown__cell b{
  display:block;font-family:var(--font-num);
  font-size:24px;line-height:1.1;color:var(--accent-2);font-weight:700;letter-spacing:.04em;
}
.countdown__cell small{display:block;font-size:11px;color:rgba(234,242,255,.6);margin-top:4px}

/* ============ 资讯列表 ============ */
.news-grid{row-gap:0}
.news-card{
  margin-bottom:24px;
  height:calc(100% - 24px);
  border-radius:var(--r-card);
  background:var(--surface);
  border:1px solid var(--line);
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.news-card__thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(140deg,#0A1526,#132238);
}
.news-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-card__thumb img{transform:scale(1.03)}
.news-card__tag{
  position:absolute;left:12px;top:12px;
  font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:999px;
  background:rgba(7,12,20,.78);
  border:1px solid rgba(23,224,176,.36);
  color:var(--primary);
  backdrop-filter:blur(6px);
}
.news-card__body{padding:20px 22px 22px}
.news-card__title{
  font-size:18px;line-height:1.45;font-weight:700;
  margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__desc{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:50px;
  margin-bottom:16px;
}
.news-card__meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
  border-top:1px solid var(--line);
  padding-top:14px;
}
.news-card__meta .arrow{color:var(--primary);font-weight:700;transition:transform .25s ease}
.news-card:hover .news-card__meta .arrow{transform:translateX(4px)}
.news-empty{
  padding:64px 24px;
  text-align:center;
  border:1px dashed rgba(120,180,255,.24);
  border-radius:var(--r-block);
  background:rgba(12,21,35,.6);
}
.news-empty__icon{
  width:56px;height:56px;margin:0 auto 18px;
  border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(23,224,176,.08);
  border:1px solid rgba(23,224,176,.28);
  color:var(--primary);font-size:22px;font-weight:700;font-family:var(--font-num);
}
.news-empty p{color:var(--text-2);font-size:15px;margin-bottom:20px}

/* ============ 图文错落 ============ */
.feature-row{
  display:grid;grid-template-columns:5fr 7fr;
  gap:56px;align-items:center;
  padding:40px 0;
}
.feature-row--reverse{grid-template-columns:7fr 5fr}
.feature-row--reverse .feature-row__media{order:2}
.feature-row--reverse .feature-row__body{order:1}
.feature-row__media{
  border-radius:var(--r-block);
  overflow:hidden;
  aspect-ratio:16/11;
  background:linear-gradient(140deg,#0A1526,#132238);
  border:1px solid var(--line);
  position:relative;
}
.feature-row__media img{width:100%;height:100%;object-fit:cover}
.feature-row__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(7,12,20,0) 45%,rgba(7,12,20,.55) 100%);
}
.feature-row__body h3{font-size:26px;line-height:1.35;font-weight:700;margin-bottom:16px}
.feature-row__body p{font-size:15px;line-height:1.9;color:var(--text-2);margin-bottom:20px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-bottom:26px}
.check-list li{
  position:relative;padding-left:30px;
  font-size:15px;color:var(--text-2);line-height:1.7;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:6px;
  width:18px;height:18px;border-radius:50%;
  background:rgba(23,224,176,.14);
  border:1px solid rgba(23,224,176,.4);
}
.check-list li::after{
  content:"";position:absolute;left:6px;top:11px;
  width:6px;height:3px;border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);
}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--primary);
}
.link-arrow:hover{color:var(--primary-2);gap:12px}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto}
.faq__item{
  border-radius:var(--r-card);
  background:var(--surface);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .25s ease,background-color .25s ease;
}
.faq__item.is-open{border-color:var(--line-strong);background:var(--surface-2)}
.faq__q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;
  text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--text);
}
.faq__chev{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .22s ease;
}
.faq__chev::before,.faq__chev::after{
  content:"";position:absolute;top:50%;left:50%;
  width:11px;height:2px;border-radius:2px;background:var(--primary);
  transform:translate(-50%,-50%);
}
.faq__chev::after{transform:translate(-50%,-50%) rotate(90deg);transition:opacity .22s ease}
.faq__item.is-open .faq__chev::after{opacity:0}
.faq__a{
  max-height:0;overflow:hidden;
  transition:max-height .26s ease;
}
.faq__a p{
  padding:0 24px 22px;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ============ 咨询表单 ============ */
.contact-wrap{
  display:grid;grid-template-columns:5fr 7fr;
  gap:56px;align-items:start;
}
.contact-info h2{font-size:32px;line-height:1.28;font-weight:800;margin-bottom:16px}
.contact-info > p{font-size:15px;line-height:1.9;color:var(--text-2);margin-bottom:28px}
.contact-points{display:flex;flex-direction:column;gap:18px}
.contact-points li{
  display:flex;gap:14px;align-items:flex-start;
}
.contact-points .dot{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(23,224,176,.09);
  border:1px solid rgba(23,224,176,.28);
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--primary);
}
.contact-points h4{font-size:15px;font-weight:700;margin-bottom:4px}
.contact-points p{font-size:14px;color:var(--text-2);line-height:1.7}

.form-card{
  padding:32px;
  border-radius:var(--r-block);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--text-2);font-weight:500}
.field label .req{color:var(--accent)}
.field input,.field select,.field textarea{
  width:100%;
  background:#0B1420;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:12px 14px;
  font-size:15px;
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
  appearance:none;
}
.field input::placeholder,.field textarea::placeholder{color:#54677E}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(23,224,176,.16);
  background:#0D1926;
}
.field textarea{resize:vertical;min-height:112px;line-height:1.7}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
  padding-right:40px;
}
.field select option{background:#0B1420;color:var(--text)}
.form-consent{
  display:flex;align-items:flex-start;gap:10px;
  font-size:13px;color:var(--text-3);line-height:1.7;
  margin-top:4px;
}
.form-consent input{width:16px;height:16px;margin-top:4px;accent-color:var(--primary);flex:0 0 auto}
.form-consent a{color:var(--primary)}

/* ============ 页脚 ============ */
.site-footer{
  background:#050A12;
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:96px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:56px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand > p{font-size:14px;line-height:1.85;color:var(--text-2);margin-bottom:14px;max-width:320px}
.footer-contact{font-size:13px;color:var(--text-3)}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--text);
  margin-bottom:18px;letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary)}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.8}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}

/* ============ 响应式 ============ */
@media screen and (max-width:1279px){
  .main-nav a{font-size:14px;padding:8px 9px}
  .header-actions .btn--ghost{display:none}
  .hero h1{font-size:44px}
  .hero__stats{max-width:470px}
  .hero__stat{padding:0 18px}
  .hero__stat b{font-size:26px}
}

@media screen and (max-width:1023px){
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .main-nav,.header-actions{display:none}
  .nav-toggle{display:flex}
  .site-header__inner{height:60px;gap:16px}
  .hero{padding:72px 0 88px}
  .hero h1{font-size:38px}
  .hero__stats{position:static;max-width:none;margin-top:40px;bottom:auto;right:auto}
  .metrics__grid{grid-template-columns:repeat(2,1fr);row-gap:32px;margin-top:40px}
  .metric:nth-child(3){border-left:0;padding-left:0}
  .feature-row,.feature-row--reverse{grid-template-columns:1fr;gap:32px}
  .feature-row--reverse .feature-row__media{order:0}
  .feature-row--reverse .feature-row__body{order:0}
  .contact-wrap{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  .ladder__item{margin-left:calc(var(--i,0) * 12px)}
  .banner__inner{gap:24px}
}

@media screen and (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .site-footer{margin-top:56px;padding-top:56px}
  .notice__inner{gap:10px;font-size:12px}
  .notice__link span{display:none}
  h2.section-title{font-size:24px}
  .section-head{margin-bottom:32px}
  .hero{padding:56px 0 64px}
  .hero h1{font-size:30px;line-height:1.24}
  .hero__sub{font-size:15px;margin-bottom:26px}
  .hero__cta{gap:10px}
  .hero__cta .btn{width:100%}
  .hero__stat{padding:0 12px}
  .hero__stat b{font-size:22px}
  .hero__stat small{font-size:11px}
  .hero__stats{padding:16px 4px;border-radius:16px}
  .metrics__grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .metric{padding:0 16px}
  .metric b{font-size:28px}
  .metric span{font-size:13px}
  .metric:nth-child(odd){border-left:0;padding-left:0}
  .ladder__item{flex-direction:column;gap:14px;padding:22px;margin-left:0}
  .ladder__num{font-size:34px}
  .ladder__more{align-self:flex-start}
  .banner{padding:40px 0}
  .banner h2{font-size:22px}
  .banner__left p{font-size:14px}
  .countdown{gap:8px}
  .countdown__cell{width:54px;padding:8px 0}
  .countdown__cell b{font-size:19px}
  .banner .btn{width:100%}
  .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .compare{min-width:640px}
  .feature-row__body h3{font-size:21px}
  .form-card{padding:22px}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:36px;padding-bottom:40px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq__q{padding:16px 18px;font-size:15px}
  .faq__a p{padding:0 18px 18px;font-size:14px}
}

@media screen and (max-width:519px){
  .hero h1{font-size:26px}
  .hero__stats{flex-direction:column;gap:14px;padding:18px}
  .hero__stat{padding:0;border-left:0;border-top:1px solid rgba(120,180,255,.16);padding-top:14px}
  .hero__stat:first-child{border-top:0;padding-top:0}
  .metrics__grid{grid-template-columns:1fr}
  .metric{border-left:0;padding-left:0;padding-top:16px;border-top:1px solid var(--line)}
  .metric:first-child{border-top:0;padding-top:0}
}

@media (hover:hover){
  .news-card:hover .news-card__title{color:var(--primary)}
}

/* roulang page: article */
:root{
  --bg:#070C14;--bg-2:#0C1523;--surface:#111C2B;
  --line:rgba(120,180,255,.14);--line-strong:rgba(23,224,176,.40);
  --primary:#17E0B0;--primary-2:#0FB6E8;--accent:#FF5A2B;--accent-2:#FFC53D;
  --text:#EAF2FF;--text-2:#A8B8CE;--text-3:#6E8099;
  --ok:#2BD97C;--err:#FF6B6B;
  --r-card:16px;--r-block:24px;--r-img:12px;--r-input:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-btn:0 0 0 1px rgba(23,224,176,.35),0 10px 30px rgba(23,224,176,.22);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Barlow Semi Condensed","DIN Alternate","Arial Narrow",var(--font);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:16px;line-height:1.8;letter-spacing:.01em;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(120,180,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.5) 1px,transparent 1px);
  background-size:64px 64px;opacity:.045;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:.01em}
button{font-family:inherit}
ul,ol{margin:0 0 16px;padding-left:22px}
input,select,textarea{font-family:inherit}
::selection{background:rgba(23,224,176,.3);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:767px){.container{padding:0 16px}}

/* ---------- 通知条 ---------- */
.notice-bar{position:relative;z-index:60;background:linear-gradient(90deg,rgba(23,224,176,.14),rgba(15,182,232,.10));border-bottom:1px solid var(--line)}
.notice-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:4px;padding-bottom:4px}
.notice-bar__text{display:flex;align-items:center;gap:8px;margin:0;font-size:13px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.notice-bar__text .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(23,224,176,.16);flex:0 0 auto}
.notice-bar__link{font-size:13px;color:var(--primary);white-space:nowrap;transition:color .2s}
.notice-bar__link i{font-style:normal;margin-left:4px}
.notice-bar__link:hover{color:#8BFFE4}
.notice-bar__close{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:24px;height:24px;line-height:1;background:transparent;border:0;color:var(--text-3);font-size:18px;cursor:pointer;border-radius:6px}
.notice-bar__close:hover{color:var(--text);background:rgba(255,255,255,.06)}
@media (min-width:1440px){.notice-bar__close{right:-4px}}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(7,12,20,.82);border-bottom:1px solid var(--line);transition:background .25s,box-shadow .25s}
.site-header.is-scrolled{background:rgba(7,12,20,.96);box-shadow:0 12px 30px rgba(0,0,0,.42);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{display:inline-flex;align-items:flex-end;gap:3px;height:24px}
.brand__mark i{display:block;width:5px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--primary-2))}
.brand__mark i:nth-child(1){height:12px;transform:skewX(-14deg)}
.brand__mark i:nth-child(2){height:19px;transform:skewX(-14deg);opacity:.85}
.brand__mark i:nth-child(3){height:24px;transform:skewX(-14deg);opacity:.65}
.brand__text{display:inline-flex;align-items:baseline;gap:2px;font-size:19px;font-weight:800;color:var(--text);letter-spacing:.02em}
.brand__text .brand__latin{font-family:var(--font-num);font-size:17px;color:var(--primary);letter-spacing:.04em;margin-left:2px}
.brand__text em{font-style:normal;font-size:11px;font-weight:600;color:var(--text-3);border:1px solid var(--line);border-radius:999px;padding:1px 7px;margin-left:8px;letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:26px;flex:1 1 auto}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;transition:color .2s}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s}
.main-nav a:hover,.main-nav a:focus-visible{color:var(--text)}
.main-nav a:hover::after,.main-nav a:focus-visible::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--primary)}
.header-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.header-link{font-size:14px;color:var(--text-2);white-space:nowrap;transition:color .2s}
.header-link i{font-style:normal;color:var(--primary);margin-left:4px;display:inline-block;transition:transform .2s}
.header-link:hover{color:var(--text)}
.header-link:hover i{transform:translateX(3px)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:rgba(17,28,43,.7);color:var(--text);font-size:12px;font-weight:600;letter-spacing:.06em;cursor:pointer}
.menu-toggle:hover{border-color:var(--line-strong);color:var(--primary)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .2s,background .2s,border-color .2s,color .2s;white-space:nowrap}
.btn--primary{background:linear-gradient(120deg,var(--primary),var(--primary-2));color:#04120F;box-shadow:var(--shadow-btn)}
.btn--primary:hover{transform:translateY(-1px);filter:brightness(1.05);box-shadow:0 0 0 1px rgba(23,224,176,.5),0 14px 34px rgba(23,224,176,.3)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn--ghost:hover{border-color:var(--line-strong);color:var(--primary);transform:translateY(-1px)}
.btn--accent{background:linear-gradient(120deg,var(--accent),#FF8A3D);color:#1B0700;box-shadow:0 0 0 1px rgba(255,90,43,.4),0 10px 30px rgba(255,90,43,.25)}
.btn--accent:hover{transform:translateY(-1px);filter:brightness(1.05)}
.btn--sm{height:40px;padding:0 20px;font-size:14px}
.btn--nav{height:44px;padding:0 22px;font-size:14px}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,224,176,.45)}
.btn--block{width:100%}

/* ---------- 移动抽屉 ---------- */
.dark-drawer{background:var(--bg-2);border-left:1px solid var(--line);width:300px}
.dark-drawer .close-button{color:var(--text-2);top:16px;right:16px}
.drawer-inner{padding:64px 24px 32px;display:flex;flex-direction:column;height:100%}
.drawer-title{font-size:12px;letter-spacing:.16em;color:var(--text-3);text-transform:uppercase;margin-bottom:18px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:auto}
.drawer-nav a{padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text-2);border:1px solid transparent;transition:background .2s,color .2s,border-color .2s}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(23,224,176,.10);color:var(--primary);border-color:rgba(23,224,176,.28)}
.drawer-inner .btn{margin-top:28px}

/* ---------- 面包屑 ---------- */
.crumb-bar{position:relative;z-index:1;border-bottom:1px solid var(--line);background:rgba(12,21,35,.55)}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);padding:14px 0;margin:0;list-style:none}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:rgba(120,180,255,.35)}
.crumb a{color:var(--text-2);transition:color .2s}
.crumb a:hover{color:var(--primary)}
.crumb .is-current{color:var(--primary);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom}

/* ---------- 文章主体 ---------- */
.article-wrap{position:relative;z-index:1;padding:56px 0 96px}
.article-head{max-width:880px;margin-bottom:32px}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--primary);background:rgba(23,224,176,.12);border:1px solid rgba(23,224,176,.32)}
.badge--amber{color:var(--accent-2);background:rgba(255,197,61,.12);border-color:rgba(255,197,61,.32)}
.article-head h1{font-size:36px;margin:18px 0 18px;letter-spacing:.01em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:14px;color:var(--text-3)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta b{color:var(--text-2);font-weight:500}
.article-meta .sep{width:1px;height:12px;background:var(--line)}

.article-cover{position:relative;border-radius:var(--r-block);overflow:hidden;border:1px solid var(--line);background:linear-gradient(160deg,#0B1524,#0A2230 60%,#0B1A24);margin-bottom:48px}
.article-cover::after{content:"";display:block;padding-top:56.25%}
.article-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.article-cover .cover-tag{position:absolute;left:20px;bottom:20px;z-index:2}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;align-items:start}
.article-main{min-width:0}

/* 正文排版 */
.article-body{font-size:16px;line-height:1.95;color:var(--text-2);max-width:760px}
.article-body>p:first-child{font-size:17px;color:var(--text)}
.article-body h2{position:relative;font-size:28px;color:var(--text);margin:44px 0 18px;padding-left:16px;line-height:1.35}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--primary-2))}
.article-body h3{font-size:20px;color:var(--text);margin:32px 0 14px}
.article-body h4{font-size:17px;color:var(--text);margin:26px 0 12px}
.article-body p{margin:0 0 18px}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(23,224,176,.35);transition:border-color .2s,color .2s}
.article-body a:hover{color:#8BFFE4;border-color:#8BFFE4}
.article-body strong{color:var(--text);font-weight:700}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body li{margin-bottom:10px}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{margin:26px 0;padding:18px 22px;border-left:3px solid var(--primary);border-radius:0 var(--r-img) var(--r-img) 0;background:rgba(17,28,43,.9);color:var(--text-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px auto;border:1px solid var(--line)}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;color:var(--text-2)}
.article-body th{background:rgba(17,28,43,.9);color:var(--text);font-weight:600}
.article-body tr:hover td{background:rgba(23,224,176,.05)}
.article-body td:first-child,.article-body th:first-child{color:var(--text);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.article-empty{padding:48px 28px;border:1px dashed var(--line);border-radius:var(--r-card);background:rgba(17,28,43,.6);text-align:center;max-width:760px}
.article-empty h2{font-size:20px;color:var(--text);margin-bottom:10px}
.article-empty p{color:var(--text-3);font-size:14px;margin-bottom:22px}

/* 文末 */
.article-foot{max-width:760px;margin-top:48px;padding-top:32px;border-top:1px solid var(--line)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;font-size:13px;color:var(--text-2);background:rgba(17,28,43,.9);border:1px solid var(--line);transition:color .2s,border-color .2s,transform .2s}
.tag:hover{color:var(--primary);border-color:var(--line-strong);transform:translateY(-1px)}
.foot-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-bottom:36px}
.share-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.share-row a{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line);background:rgba(17,28,43,.8);font-size:12px;color:var(--text-2);transition:color .2s,border-color .2s}
.share-row a:hover{color:var(--primary);border-color:var(--line-strong)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pager-card{display:block;padding:18px 20px;border-radius:var(--r-card);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card);transition:transform .2s,border-color .2s}
.pager-card span{display:block;font-size:12px;color:var(--text-3);letter-spacing:.08em;margin-bottom:8px}
.pager-card strong{display:block;font-size:15px;color:var(--text);font-weight:600;line-height:1.5;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.pager-card:hover{transform:translateY(-3px);border-color:rgba(23,224,176,.4)}
.pager-card.is-next{text-align:right}

/* 侧栏 */
.article-side{display:none}
.side-card{padding:24px;border-radius:var(--r-card);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card);margin-bottom:20px}
.side-card h3{font-size:15px;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.side-card h3::before{content:"";display:inline-block;width:6px;height:6px;border-radius:2px;background:var(--primary);transform:rotate(45deg);margin-right:8px;vertical-align:middle}
.side-toc{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.side-toc a{display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--text-2);transition:background .2s,color .2s}
.side-toc a::before{content:"";width:14px;height:1px;background:var(--line);transition:width .2s,background .2s}
.side-toc a:hover{background:rgba(23,224,176,.08);color:var(--primary)}
.side-toc a:hover::before{width:20px;background:var(--primary)}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.side-list a{display:block;font-size:14px;color:var(--text-2);line-height:1.6;transition:color .2s}
.side-list a:hover{color:var(--primary)}
.side-list .num{display:inline-block;font-family:var(--font-num);font-size:13px;color:var(--primary);letter-spacing:.06em;margin-right:6px}
.side-list small{display:block;font-size:12px;color:var(--text-3);margin-top:4px}
.side-cta{
  position:sticky;top:96px;padding:26px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(23,224,176,.16),rgba(15,182,232,.10));
  border:1px solid rgba(23,224,176,.32);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.side-cta h3{font-size:22px;color:var(--text);letter-spacing:.01em}
.side-cta h3 span{font-size:15px;color:var(--text-3)}
.side-cta h3{hyphens:none}
.side-cta p{font-size:13px;color:var(--text-2);margin:12px 0 12px;line-height:1.75}
.side-cta .btn{width:100%;margin-top:6px}
@supports not (backdrop-filter:blur(1px)){.side-cta{background:#0E2430}}

/* 相关推荐 */
.related{position:relative;z-index:1;padding:0 0 96px}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.related-head h2{font-size:32px}
.related-head p{font-size:14px;color:var(--text-3);margin:8px 0 0}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{display:flex;flex-direction:column;height:100%;border-radius:var(--r-card);background:var(--surface);border:1px solid var(--line);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .22s,border-color .22s}
.post-card__media{position:relative;overflow:hidden;background:linear-gradient(160deg,#0B1524,#0A2230)}
.post-card__media::after{content:"";display:block;padding-top:62.5%}
.post-card__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .35s}
.post-card__media .badge{position:absolute;left:14px;top:14px;z-index:2}
.post-card__body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.post-card__body h3{font-size:18px;color:var(--text);margin-bottom:10px;line-height:1.45}
.post-card__body p{font-size:14px;color:var(--text-2);margin:0 0 18px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);border-top:1px solid var(--line);padding-top:14px}
.post-card__foot .arrow{color:var(--primary);transition:transform .22s}
.post-card:hover{transform:translateY(-4px);border-color:rgba(23,224,176,.4)}
.post-card:hover .post-card__media img{transform:scale(1.03)}
.post-card:hover .arrow{transform:translateX(4px)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;z-index:1;background:#050A11;border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.85;max-width:340px}
.footer-contact{color:var(--text-2)!important;margin-top:14px}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col li a{font-size:14px;color:var(--text-3);transition:color .2s,padding-left .2s}
.footer-col li a:hover{color:var(--primary);padding-left:4px}
.footer-col p{font-size:13px;color:var(--text-3);line-height:1.85;margin:0}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 0;border-top:1px solid var(--line)}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .main-nav{gap:20px}
  .header-inner{gap:20px}
}
@media (max-width:1023px){
  .main-nav,.header-link{display:none}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-actions{margin-left:auto}
  .article-head h1{font-size:30px}
  .article-body h2{font-size:24px}
  .related-head h2{font-size:27px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,760px) 320px;gap:56px;justify-content:space-between}
  .article-side{display:block}
}
@media (max-width:767px){
  .notice-bar__inner{padding-right:34px}
  .notice-bar__text{font-size:12px}
  .header-inner{min-height:60px;gap:12px}
  .brand__text{font-size:17px}
  .brand__text .brand__latin{font-size:15px}
  .brand__text em{display:none}
  .btn--nav{display:none}
  .article-wrap{padding:36px 0 64px}
  .article-head h1{font-size:24px;margin:14px 0 14px}
  .article-meta{font-size:13px;gap:8px 14px}
  .article-cover{margin-bottom:32px;border-radius:var(--r-card)}
  .article-body{font-size:16px;line-height:1.85}
  .article-body>p:first-child{font-size:16px}
  .article-body h2{font-size:22px;margin:34px 0 14px}
  .article-body h3{font-size:18px}
  .pager{grid-template-columns:1fr}
  .pager-card.is-next{text-align:left}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .related{padding-bottom:64px}
  .related-head{flex-direction:column;align-items:flex-start;margin-bottom:20px}
  .related-head h2{font-size:23px}
  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr}
  .article-cover .cover-tag{left:12px;bottom:12px}
  .foot-actions{flex-direction:column;align-items:flex-start}
}
@media (hover:none){
  .post-card:hover{transform:none}
  .btn:hover{transform:none}
  .btn:active{filter:brightness(1.08)}
  .post-card:active{border-color:rgba(23,224,176,.45)}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --bg:#070C14;
  --bg-2:#0C1523;
  --surface:#111C2B;
  --line:rgba(120,180,255,.14);
  --line-strong:rgba(23,224,176,.40);
  --primary:#17E0B0;
  --primary-2:#0FB6E8;
  --accent:#FF5A2B;
  --accent-2:#FFC53D;
  --text:#EAF2FF;
  --text-2:#A8B8CE;
  --text-3:#6E8099;
  --ok:#2BD97C;
  --err:#FF6B6B;
  --r-card:16px;
  --r-block:24px;
  --r-btn:999px;
  --r-btn2:12px;
  --r-img:12px;
  --r-input:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --container:1200px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Barlow Semi Condensed","DIN Alternate","Arial Narrow",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:var(--font-cn);
  font-weight:800;
  line-height:1.25;
  letter-spacing:.01em;
  color:var(--text);
}
p{margin:0}
figure{margin:0}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(23,224,176,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.grid-x > .cell{padding-left:12px;padding-right:12px}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x{margin-left:-12px;margin-right:-12px}

/* 顶部通知条 */
.notice-bar{
  background:linear-gradient(90deg,rgba(23,224,176,.16),rgba(15,182,232,.07) 60%,rgba(255,90,43,.10));
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.notice-inner{display:flex;align-items:center;gap:14px;min-height:36px;padding-top:5px;padding-bottom:5px}
.notice-inner p{display:flex;align-items:center;gap:8px;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.notice-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 4px rgba(255,197,61,.16);flex:none}
.notice-link{color:var(--primary);font-weight:700;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.notice-link:hover{color:var(--accent-2)}
.notice-close{width:26px;height:26px;display:grid;place-items:center;border-radius:8px;color:var(--text-3);flex:none}
.notice-close:hover{color:var(--text);background:rgba(255,255,255,.07)}
.notice-bar.is-hidden{display:none}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,12,20,.92);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(6,10,17,.99);box-shadow:0 12px 34px rgba(0,0,0,.5)}
.header-inner{display:flex;align-items:center;gap:26px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand__mark{display:flex;align-items:flex-end;gap:3px;height:30px;transform:skewX(-12deg)}
.brand__mark i{display:block;width:6px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--primary-2))}
.brand__mark i:nth-child(1){height:15px}
.brand__mark i:nth-child(2){height:23px}
.brand__mark i:nth-child(3){height:30px;background:linear-gradient(180deg,var(--accent-2),var(--accent))}
.brand__text{font-size:17px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
.brand__latin{font-family:var(--font-num);letter-spacing:.06em;color:var(--primary);margin-left:2px}
.brand__text em{font-style:normal;font-size:12px;color:var(--text-3);margin-left:5px;font-weight:500;letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:4px;flex:1}
.main-nav a{position:relative;padding:9px 12px;font-size:15px;font-weight:500;color:var(--text-2);border-radius:8px;white-space:nowrap}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav a:hover{color:var(--text)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--text)}
.nav-actions{display:flex;align-items:center;gap:16px;flex:none}
.nav-sub{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--text-2)}
.nav-sub:hover{color:var(--primary)}
.nav-sub i{font-size:11px;transition:transform .2s ease}
.nav-sub:hover i{transform:translateX(3px)}
.nav-toggle{display:none;width:44px;height:40px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;color:var(--text);margin-left:auto;font-size:16px}
.nav-toggle:hover{border-color:var(--line-strong);color:var(--primary)}
.mobile-panel{display:none}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  border:1px solid transparent;
}
.btn i{font-size:13px;transition:transform .2s ease}
.btn:hover i{transform:translateX(3px)}
.btn-primary{background:var(--primary);color:#04140F;box-shadow:0 0 0 1px rgba(23,224,176,.35),0 10px 30px rgba(23,224,176,.22)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(23,224,176,.5),0 14px 34px rgba(23,224,176,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.02);border-color:rgba(120,180,255,.3);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 26px rgba(255,90,43,.28)}
.btn-accent:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn-dark{background:rgba(7,12,20,.72);color:var(--text);border-color:rgba(255,255,255,.28)}
.btn-dark:hover{background:rgba(7,12,20,.9);border-color:var(--primary);color:var(--primary)}
.btn-nav{height:44px;padding:0 22px;font-size:14px}
.btn:disabled,.btn.is-disabled{opacity:.3;pointer-events:none}

/* Hero */
.page-hero{
  position:relative;
  padding:34px 0 52px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
  background-color:var(--bg);
  background-image:linear-gradient(180deg,rgba(7,12,20,.90),rgba(7,12,20,.97) 70%,var(--bg)),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(120,180,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.7) 1px,transparent 1px);
  background-size:64px 64px;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(110,128,153,.7)}
.breadcrumb .current{color:var(--text-2)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--primary);border:1px solid var(--line-strong);background:rgba(23,224,176,.07);
}
.hero-badge i{font-size:11px}
.page-hero h1{font-size:clamp(28px,3.7vw,44px);line-height:1.2;margin:16px 0 14px;max-width:14em}
.hero-lead{font-size:17px;line-height:1.8;color:var(--text-2);max-width:34em}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px}
.hero-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.hero-points i{color:var(--primary);font-size:12px}
.hero-figure{
  position:relative;overflow:hidden;aspect-ratio:16/10;
  border:1px solid var(--line);border-radius:var(--r-block);
  background:linear-gradient(135deg,#0B1A2A,#12233A);
  box-shadow:0 20px 50px rgba(0,0,0,.45);
  clip-path:polygon(0 0,100% 0,100% 86%,0 100%);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 20px 16px;
  font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(7,12,20,.92));
}

/* 指标条 */
.metrics{background:var(--bg-2);border-bottom:1px solid var(--line)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:28px 24px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric b{
  display:block;font-family:var(--font-num);font-weight:700;
  font-size:clamp(26px,3vw,36px);line-height:1.1;letter-spacing:.04em;color:var(--primary);
}
.metric span{display:block;margin-top:6px;font-size:13px;color:var(--text-3);letter-spacing:.02em}

/* 板块 */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:52px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--primary);
  border:1px solid var(--line-strong);background:rgba(23,224,176,.06);
}
.section-head h2{font-size:clamp(24px,2.7vw,34px);margin:18px 0 12px}
.section-head p{font-size:16px;color:var(--text-2)}

/* 图文交错 */
.feature{row-gap:28px;margin-bottom:80px}
.feature:last-child{margin-bottom:0}
.feature-media{
  overflow:hidden;border-radius:var(--r-block);border:1px solid var(--line);
  aspect-ratio:16/10;background:linear-gradient(135deg,#0B1A2A,#12233A);
  box-shadow:var(--shadow-card);
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.feature-media:hover img{transform:scale(1.03)}
.feature-copy h3{font-size:22px;margin-bottom:14px}
.feature-copy p{color:var(--text-2);font-size:16px}
.feature-index{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:700;
  letter-spacing:.14em;color:var(--primary);margin-bottom:10px;
}
.check-list{margin-top:22px;display:grid;gap:11px}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text-2)}
.check-list i{color:var(--primary);font-size:11px;margin-top:7px;flex:none}

/* 要点卡 */
.point-grid{row-gap:24px}
.point-card{
  height:100%;padding:26px 24px;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.point-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 14px 34px rgba(0,0,0,.45)}
.point-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  font-size:16px;color:var(--primary);background:rgba(23,224,176,.1);
  border:1px solid var(--line-strong);margin-bottom:16px;
}
.point-card h3{font-size:18px;margin-bottom:10px}
.point-card p{font-size:14px;color:var(--text-2);line-height:1.75}
.point-card .tagline{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:13px;font-weight:600;color:var(--primary);
}
.point-card .tagline i{font-size:11px;transition:transform .2s ease}
.point-card:hover .tagline i{transform:translateX(3px)}

/* FAQ */
.accordion{background:transparent;border:0;margin:0}
.accordion .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;transition:border-color .22s ease;
}
.accordion .accordion-item.is-active{border-color:var(--line-strong)}
.accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
  background:transparent;border:0;
}
.accordion .accordion-title:hover{background:rgba(23,224,176,.05);color:var(--text)}
.accordion .accordion-title::before{
  content:"+";float:none;order:2;margin:0;font-family:var(--font-num);
  font-size:20px;line-height:1;color:var(--primary);font-weight:400;
  transition:transform .22s ease;
}
.accordion .accordion-title[aria-expanded="true"]::before{content:"–"}
.accordion .accordion-content{padding:0 24px 22px;border:0;background:transparent;color:var(--text-2);font-size:15px;line-height:1.8}
.accordion .accordion-content p{color:var(--text-2)}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;padding:44px 44px;
  border-radius:var(--r-block);border:1px solid var(--line-strong);
  background:linear-gradient(110deg,rgba(23,224,176,.20),rgba(15,182,232,.12) 52%,rgba(255,90,43,.16));
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  border:1px solid rgba(23,224,176,.35);pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--text-2);max-width:36em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* 页脚 */
.site-footer{background:#050A11;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-3);max-width:34em}
.footer-contact{margin-top:12px;font-size:13px;color:var(--text-3)}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:grid;gap:10px}
.footer-col li a{font-size:14px;color:var(--text-3)}
.footer-col li a:hover{color:var(--primary)}
.footer-col p{font-size:14px;line-height:1.85;color:var(--text-3)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* 响应式 */
@media (min-width:1024px){
  .feature.is-flip .feature-media{order:2}
  .feature.is-flip .feature-copy{order:1}
}
@media (max-width:1023px){
  .main-nav,.nav-actions{display:none}
  .nav-toggle{display:inline-flex}
  .mobile-panel{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:#0A121D;border-bottom:1px solid var(--line);
    box-shadow:0 20px 40px rgba(0,0,0,.5);
  }
  .mobile-panel.is-open{display:block}
  .mobile-panel .container{display:flex;flex-direction:column;gap:4px;padding-top:14px;padding-bottom:20px}
  .mobile-panel a.m-link{padding:12px 12px;border-radius:10px;font-size:15px;font-weight:500;color:var(--text-2)}
  .mobile-panel a.m-link:hover{background:rgba(255,255,255,.05);color:var(--text)}
  .mobile-panel a.m-link.is-active{color:var(--primary);background:rgba(23,224,176,.08)}
  .mobile-panel .btn{margin-top:14px;width:100%}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-figure{clip-path:polygon(0 0,100% 0,100% 92%,0 100%)}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .grid-x{margin-left:-8px;margin-right:-8px}
  .grid-x > .cell{padding-left:8px;padding-right:8px}
  .notice-inner p{font-size:12px}
  .notice-link span{display:none}
  .header-inner{min-height:60px;gap:12px}
  .brand__text{font-size:15px}
  .brand__text em{font-size:11px}
  .page-hero{padding:24px 0 40px}
  .page-hero h1{margin:14px 0 12px}
  .hero-lead{font-size:15px}
  .hero-points{gap:8px 16px;margin-top:20px}
  .hero-points li{font-size:13px}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .metric{padding:20px 16px;border-bottom:1px solid var(--line)}
  .metric:nth-child(2n){border-right:0}
  .metric:nth-last-child(-n+2){border-bottom:0}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .feature{margin-bottom:56px}
  .feature-copy h3{font-size:19px}
  .cta-band{padding:28px 22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .btn{width:100%}
  .btn-nav,.nav-sub{width:auto}
  .accordion .accordion-title{padding:16px 18px;font-size:15px}
  .accordion .accordion-content{padding:0 18px 18px;font-size:14px}
}
@media (max-width:520px){
  .hero-points li{width:100%}
  .metric b{font-size:26px}
  .point-card{padding:22px 18px}
}

/* roulang page: category2 */
:root{
  --bg:#070C14;
  --bg-2:#0C1523;
  --surface:#111C2B;
  --surface-2:#0B1420;
  --line:rgba(120,180,255,.14);
  --line-strong:rgba(23,224,176,.40);
  --primary:#17E0B0;
  --primary-2:#0FB6E8;
  --accent:#FF5A2B;
  --accent-2:#FFC53D;
  --text:#EAF2FF;
  --text-2:#A8B8CE;
  --text-3:#6E8099;
  --ok:#2BD97C;
  --err:#FF6B6B;
  --radius-card:16px;
  --radius-lg:24px;
  --radius-btn:999px;
  --radius-img:12px;
  --radius-input:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-primary:0 0 0 1px rgba(23,224,176,.35),0 10px 30px rgba(23,224,176,.22);
  --shadow-accent:0 0 0 1px rgba(255,90,43,.35),0 10px 30px rgba(255,90,43,.24);
  --container:1200px;
  --gap:24px;
  --num-font:"DIN Alternate","Barlow Semi Condensed","Arial Narrow",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--text);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid rgba(23,224,176,.55);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:34px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:.01em;
  margin-bottom:14px;
}
.section-head p{color:var(--text-2);font-size:16px;line-height:1.85;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);display:block;}

/* ============ 顶部通知条 ============ */
.topbar{
  background:linear-gradient(90deg,rgba(255,90,43,.16),rgba(23,224,176,.10));
  border-bottom:1px solid var(--line);
  font-size:13px;
  height:36px;
  display:flex;align-items:center;
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar__left{display:flex;align-items:center;gap:10px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar__dot{width:6px;height:6px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 3px rgba(255,197,61,.16);flex:0 0 auto;}
.topbar__right{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.topbar__link{color:var(--primary);font-weight:600;}
.topbar__close{color:var(--text-3);font-size:16px;line-height:1;padding:4px;}
.topbar__close:hover{color:var(--text);}
.topbar.is-hidden{display:none;}

/* ============ 品牌 ============ */
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{display:inline-flex;align-items:center;gap:3px;height:26px;}
.brand__mark i{
  display:block;width:6px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
  transform:skewX(-18deg);
}
.brand__mark i:nth-child(1){height:18px;}
.brand__mark i:nth-child(2){height:26px;opacity:.85;}
.brand__mark i:nth-child(3){height:12px;background:var(--accent);opacity:.95;}
.brand__text{
  font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--text);
  display:inline-flex;align-items:baseline;gap:2px;
}
.brand__latin{font-family:var(--num-font);font-weight:700;letter-spacing:.06em;color:var(--primary);margin-left:2px;}
.brand__text em{font-style:normal;font-size:11px;font-weight:500;color:var(--text-3);border:1px solid var(--line);border-radius:6px;padding:1px 5px;margin-left:6px;letter-spacing:.06em;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,12,20,.86);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-stuck{
  background:rgba(7,12,20,.95);
  box-shadow:0 10px 30px rgba(0,0,0,.4);
  backdrop-filter:blur(14px);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;border-radius:2px;
}
.main-nav a:hover{color:var(--text);}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--primary);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;color:var(--text);
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0 0 0 auto;width:min(320px,86vw);
  background:var(--bg-2);border-left:1px solid var(--line);
  transform:translateX(105%);transition:transform .3s cubic-bezier(.22,.68,.32,1);
  z-index:120;padding:24px 22px;display:flex;flex-direction:column;gap:6px;
  box-shadow:-20px 0 50px rgba(0,0,0,.5);
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.mobile-drawer__close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);color:var(--text-2);font-size:18px;}
.mobile-drawer a.m-link{
  padding:14px 12px;border-radius:12px;font-size:16px;color:var(--text-2);
  border:1px solid transparent;
}
.mobile-drawer a.m-link:hover,.mobile-drawer a.m-link.is-active{
  color:var(--primary);background:rgba(23,224,176,.08);border-color:var(--line-strong);
}
.mobile-drawer .btn{margin-top:18px;width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,12,.66);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn--primary{background:var(--primary);color:#04140F;box-shadow:var(--shadow-primary);}
.btn--primary:hover{transform:translateY(-1px);color:#04140F;filter:brightness(1.05);box-shadow:0 0 0 1px rgba(23,224,176,.5),0 14px 34px rgba(23,224,176,.3);}
.btn--accent{background:var(--accent);color:#1A0700;box-shadow:var(--shadow-accent);}
.btn--accent:hover{transform:translateY(-1px);color:#1A0700;filter:brightness(1.06);}
.btn--ghost{background:transparent;color:var(--text);border-color:rgba(120,180,255,.28);}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
.btn--sm{height:44px;padding:0 20px;font-size:14px;}
.btn--block{width:100%;}
.btn:active{transform:translateY(0);}
.btn[disabled]{opacity:.3;pointer-events:none;}

/* ============ 面包屑 ============ */
.breadcrumb{padding:20px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:rgba(110,128,153,.5);}
.breadcrumb li[aria-current]{color:var(--text-2);}

/* ============ 分类小 Hero ============ */
.hero-cat{
  position:relative;padding:34px 0 56px;
  background:
    radial-gradient(900px 380px at 88% 10%,rgba(15,182,232,.14),transparent 62%),
    radial-gradient(700px 340px at 4% 88%,rgba(23,224,176,.10),transparent 62%),
    var(--bg);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero-cat::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,180,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.06) 1px,transparent 1px);
  background-size:56px 56px;opacity:.55;pointer-events:none;
}
.hero-cat__inner{
  position:relative;display:grid;grid-template-columns:1fr 400px;
  gap:48px;align-items:center;min-height:210px;
}
.hero-cat h1{
  font-size:44px;line-height:1.2;font-weight:800;letter-spacing:.01em;margin:10px 0 16px;
}
.hero-cat h1 span{color:var(--primary);}
.hero-cat__lead{color:var(--text-2);font-size:16px;line-height:1.85;max-width:560px;}
.hero-cat__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;border-radius:var(--radius-btn);
  font-size:13px;color:var(--text-2);
  background:rgba(17,28,43,.9);border:1px solid var(--line);
}
.tag--live{color:var(--primary);border-color:var(--line-strong);background:rgba(23,224,176,.08);}
.tag--warm{color:var(--accent-2);border-color:rgba(255,197,61,.32);background:rgba(255,197,61,.08);}
.hero-cat__figure{position:relative;}
.hero-cat__figure .frame{
  position:relative;aspect-ratio:16/10;border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(150deg,#0A1A2B,#07101C);
  border:1px solid var(--line);
  clip-path:polygon(12% 0,100% 0,100% 100%,0 100%);
  box-shadow:var(--shadow-card);
}
.hero-cat__figure img{width:100%;height:100%;object-fit:cover;}
.hero-cat__figure .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,20,.05),rgba(7,12,20,.55));
}
.hero-cat__badge{
  position:absolute;left:0;bottom:-18px;
  background:var(--surface);border:1px solid var(--line-strong);
  border-radius:var(--radius-card);padding:12px 18px;display:flex;align-items:center;gap:14px;
  box-shadow:var(--shadow-card);
}
.hero-cat__badge strong{font-family:var(--num-font);font-size:24px;color:var(--primary);letter-spacing:.04em;}
.hero-cat__badge span{font-size:13px;color:var(--text-3);line-height:1.4;}

/* ============ 筛选 + 内容卡 ============ */
.filter-layout{align-items:flex-start;}
.filter-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-card);
  position:sticky;top:96px;
}
.filter-panel__title{
  display:flex;align-items:center;justify-content:space-between;
  font-size:15px;font-weight:700;margin-bottom:18px;
  padding-bottom:14px;border-bottom:1px solid var(--line);
}
.filter-panel__title i{color:var(--primary);font-size:14px;}
.filter-group{margin-bottom:22px;}
.filter-group > h3{
  font-size:13px;letter-spacing:.1em;color:var(--text-3);
  font-weight:600;margin-bottom:12px;
}
.filter-group ul{display:flex;flex-direction:column;gap:10px;}
.filter-group label{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--text-2);cursor:pointer;line-height:1.5;
}
.filter-group input[type="checkbox"]{
  appearance:none;-webkit-appearance:none;
  width:18px;height:18px;border-radius:5px;flex:0 0 auto;
  border:1px solid rgba(120,180,255,.3);background:var(--surface-2);
  position:relative;transition:border-color .18s ease,background .18s ease;
}
.filter-group input[type="checkbox"]:checked{background:var(--primary);border-color:var(--primary);}
.filter-group input[type="checkbox"]:checked::after{
  content:"";position:absolute;left:5px;top:1px;width:6px;height:11px;
  border:2px solid #04140F;border-top:0;border-left:0;transform:rotate(42deg);
}
.filter-group input[type="checkbox"]:hover{border-color:var(--line-strong);}
.filter-hint{font-size:12px;color:var(--text-3);line-height:1.7;margin-top:14px;}

.content-grid{display:flex;flex-wrap:wrap;margin:-12px;}
.content-grid .cell{padding:12px;display:flex;}
.cat-card{
  width:100%;display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.cat-card__media{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(150deg,#0A1A2B,#07101C);
}
.cat-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.cat-card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,20,0) 35%,rgba(7,12,20,.72));
}
.cat-card__badge{
  position:absolute;left:14px;top:14px;z-index:2;
  height:26px;padding:0 12px;border-radius:var(--radius-btn);
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--primary);background:rgba(7,12,20,.78);
  border:1px solid var(--line-strong);
}
.cat-card__body{padding:22px 22px 18px;display:flex;flex-direction:column;flex:1 1 auto;}
.cat-card h3{font-size:20px;line-height:1.4;font-weight:700;margin-bottom:10px;}
.cat-card p{
  color:var(--text-2);font-size:14px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cat-card__foot{
  margin-top:auto;padding-top:18px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);
}
.cat-card__meta{font-size:12.5px;color:var(--text-3);letter-spacing:.02em;}
.cat-card__link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:600;color:var(--primary);
}
.cat-card__link i{transition:transform .2s ease;font-size:12px;}
.cat-card__link:hover{color:var(--primary-2);}
.cat-card__link:hover i{transform:translateX(3px);}
@media (hover:hover){
  .cat-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 16px 34px rgba(0,0,0,.45);}
  .cat-card:hover .cat-card__media img{transform:scale(1.03);}
}
.cat-card:active{transform:translateY(-1px);}

/* ============ 时间线 ============ */
.timeline-section{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px;}
.tl-item{
  position:relative;padding:28px 24px 26px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  transition:border-color .22s ease,transform .22s ease;
}
.tl-item::before{
  content:"";position:absolute;left:24px;top:0;width:44px;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));border-radius:0 0 4px 4px;
}
.tl-item__num{
  font-family:var(--num-font);font-size:44px;line-height:1;font-weight:700;
  color:rgba(23,224,176,.22);letter-spacing:.04em;margin-bottom:12px;
}
.tl-item h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.tl-item p{font-size:14px;color:var(--text-2);line-height:1.8;}
.tl-item__time{
  display:inline-block;margin-top:14px;font-size:12px;letter-spacing:.06em;
  color:var(--accent-2);border:1px solid rgba(255,197,61,.28);
  background:rgba(255,197,61,.07);border-radius:var(--radius-btn);padding:3px 12px;
}
.tl-item:hover{border-color:var(--line-strong);transform:translateY(-3px);}

/* ============ 要点卡 ============ */
.notes{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.note-card{
  background:linear-gradient(160deg,rgba(17,28,43,.95),rgba(11,20,32,.95));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow-card);position:relative;overflow:hidden;
}
.note-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:180px;height:180px;
  border-radius:50%;background:radial-gradient(circle,rgba(23,224,176,.14),transparent 70%);
}
.note-card h3{font-size:21px;font-weight:700;margin-bottom:18px;display:flex;align-items:center;gap:10px;}
.note-card h3 i{color:var(--primary);font-size:16px;}
.note-list{display:flex;flex-direction:column;gap:14px;}
.note-list li{
  display:flex;gap:12px;font-size:14.5px;color:var(--text-2);line-height:1.75;
  padding-bottom:14px;border-bottom:1px dashed rgba(120,180,255,.12);
}
.note-list li:last-child{border-bottom:0;padding-bottom:0;}
.note-list b{
  flex:0 0 auto;font-family:var(--num-font);font-size:13px;letter-spacing:.04em;
  color:var(--primary);background:rgba(23,224,176,.1);border:1px solid var(--line-strong);
  border-radius:8px;height:24px;min-width:28px;display:inline-flex;align-items:center;justify-content:center;
  margin-top:2px;
}

/* ============ 指标条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--surface);overflow:hidden;box-shadow:var(--shadow-card);
}
.metric{padding:30px 24px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric__num{
  font-family:var(--num-font);font-size:40px;line-height:1;font-weight:700;
  color:var(--text);letter-spacing:.04em;display:flex;align-items:baseline;gap:4px;
}
.metric__num small{font-size:14px;color:var(--primary);font-weight:600;letter-spacing:.02em;}
.metric__label{margin-top:10px;font-size:13.5px;color:var(--text-3);line-height:1.6;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;transition:border-color .2s ease;
}
.faq-item.is-open{border-color:var(--line-strong);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-q i{font-size:13px;color:var(--text-3);transition:transform .22s ease,color .22s ease;flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);color:var(--primary);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .26s ease;
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a__inner{padding:0 24px 22px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(104deg,rgba(255,90,43,.92),rgba(23,224,176,.85) 78%);
  border-radius:var(--radius-lg);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(7,12,20,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(7,12,20,.16) 1px,transparent 1px);
  background-size:40px 40px;opacity:.5;pointer-events:none;
}
.cta-band__text{position:relative;z-index:2;}
.cta-band__text h2{font-size:30px;line-height:1.3;font-weight:800;color:#08120E;margin-bottom:10px;}
.cta-band__text p{font-size:15px;color:rgba(8,18,14,.78);max-width:560px;line-height:1.8;}
.cta-band .btn--dark{
  position:relative;z-index:2;background:#07120E;color:#EAF2FF;
  box-shadow:0 10px 26px rgba(0,0,0,.32);flex:0 0 auto;
}
.cta-band .btn--dark:hover{color:var(--primary);transform:translateY(-1px);}

/* ============ 页脚 ============ */
.site-footer{
  background:#050A12;
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:96px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.85;margin-top:16px;max-width:340px;}
.footer-contact{color:var(--text-3);font-size:13px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.8;}
.footer-bottom{
  margin-top:52px;padding:22px 0;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero-cat__inner{grid-template-columns:1fr 340px;gap:36px;}
  .hero-cat h1{font-size:38px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .header-inner{height:66px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn--sm{display:none;}
  .hero-cat__inner{grid-template-columns:1fr;gap:32px;}
  .hero-cat__figure{max-width:520px;}
  .hero-cat h1{font-size:34px;}
  .filter-panel{position:static;margin-bottom:28px;}
  .timeline{grid-template-columns:repeat(2,1fr);}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;}
  .notes{grid-template-columns:1fr;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .section-head{margin-bottom:28px;}
  .hero-cat{padding:18px 0 40px;}
  .hero-cat h1{font-size:29px;line-height:1.28;}
  .hero-cat__lead{font-size:15px;}
  .hero-cat__badge{position:static;margin-top:16px;left:auto;bottom:auto;}
  .timeline{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .cta-band__text h2{font-size:23px;}
  .cta-band .btn,.cta-band .btn--dark{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{margin-top:56px;padding-top:52px;}
  .cat-card h3{font-size:18px;}
  .note-card{padding:24px;}
  .topbar__left{font-size:12px;}
  .topbar__right .topbar__link{display:none;}
}
@media (max-width:520px){
  .brand__text{font-size:16px;}
  .brand__text em{display:none;}
  .hero-cat h1{font-size:26px;}
  .filter-panel{padding:18px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a__inner{padding:0 18px 18px;font-size:14px;}
}
@media (hover:none){
  .cat-card:hover{transform:none;}
  .cat-card:active{border-color:var(--line-strong);}
}

/* roulang page: category3 */
:root{
  --bg:#070C14;
  --bg-2:#0C1523;
  --surface:#111C2B;
  --surface-2:#0B1420;
  --line:rgba(120,180,255,.14);
  --line-strong:rgba(23,224,176,.40);
  --primary:#17E0B0;
  --primary-2:#0FB6E8;
  --accent:#FF5A2B;
  --accent-2:#FFC53D;
  --text:#EAF2FF;
  --text-2:#A8B8CE;
  --text-3:#6E8099;
  --ok:#2BD97C;
  --err:#FF6B6B;
  --r-card:16px;
  --r-block:24px;
  --r-btn:999px;
  --r-input:10px;
  --r-img:12px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-primary:0 0 0 1px rgba(23,224,176,.35),0 10px 30px rgba(23,224,176,.22);
  --shadow-accent:0 0 0 1px rgba(255,90,43,.35),0 10px 30px rgba(255,90,43,.22);
  --num-font:"Barlow Semi Condensed","DIN Alternate","Arial Narrow","Helvetica Neue",sans-serif;
  --max:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover,a:focus{color:var(--primary);}
img{max-width:100%;display:block;border:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
::selection{background:rgba(23,224,176,.3);color:#fff;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,224,176,.45);border-radius:6px;}

.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--primary);
  font-weight:600;
  text-transform:none;
}
.eyebrow::before{
  content:"";
  width:18px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{
  font-size:34px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:.01em;
  margin:14px 0 16px;
}
.section-head p{color:var(--text-2);font-size:16px;line-height:1.8;}

/* ---------- 通知条 ---------- */
.notice-bar{
  background:linear-gradient(90deg,#0B1420,#0C1523 55%,#0B1420);
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.notice-bar__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;height:36px;
}
.notice-bar__inner p{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.dot{width:6px;height:6px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 3px rgba(255,197,61,.16);flex:0 0 auto;}
.notice-bar__right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.notice-bar__right a{color:var(--primary);font-weight:600;font-size:13px;}
.notice-close{
  width:22px;height:22px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-3);font-size:16px;line-height:1;
  transition:background .2s ease,color .2s ease;
}
.notice-close:hover{background:rgba(120,180,255,.12);color:var(--text);}

/* ---------- 品牌 ---------- */
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand__mark{position:relative;width:34px;height:34px;flex:0 0 auto;}
.brand__mark i{position:absolute;display:block;border-radius:3px;transform:skewX(-20deg);}
.brand__mark i:nth-child(1){width:9px;height:24px;left:3px;top:5px;background:linear-gradient(180deg,var(--primary),#0fae8a);}
.brand__mark i:nth-child(2){width:9px;height:18px;left:15px;top:8px;background:linear-gradient(180deg,var(--primary-2),#0a86ab);}
.brand__mark i:nth-child(3){width:6px;height:12px;left:27px;top:11px;background:var(--accent-2);}
.brand__text{
  font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--text);
  display:inline-flex;align-items:baseline;gap:2px;
}
.brand__latin{
  font-family:var(--num-font);
  font-size:17px;font-weight:700;letter-spacing:.04em;
  color:var(--primary);
  margin-left:1px;
}
.brand__text em{
  font-style:normal;font-size:11px;font-weight:600;letter-spacing:.06em;
  color:var(--text-3);margin-left:6px;
  border:1px solid var(--line);border-radius:6px;padding:1px 5px;
  transform:translateY(-2px);
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,12,20,.94);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(7,12,20,.99);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;
}
.main-nav{
  display:flex;align-items:center;gap:26px;
  flex:1 1 auto;
}
.main-nav a{
  position:relative;
  font-size:15px;font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
  transition:color .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.main-nav a:hover,.main-nav a:focus-visible{color:var(--text);}
.main-nav a:hover::after,.main-nav a:focus-visible::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--primary);}
.main-nav a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.header-link{
  font-size:14px;font-weight:500;color:var(--text-2);
  display:inline-flex;align-items:center;gap:6px;
  transition:color .2s ease,gap .2s ease;
}
.header-link:hover{color:var(--primary);gap:9px;}
.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:4px;
  flex:0 0 auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn--primary{
  background:linear-gradient(120deg,var(--primary),#0FC9A4);
  color:#04241C;
  box-shadow:var(--shadow-primary);
}
.btn--primary:hover{transform:translateY(-1px);filter:brightness(1.05);color:#04241C;}
.btn--primary:active{transform:translateY(0);}
.btn--accent{
  background:linear-gradient(120deg,var(--accent),#FF7A3D);
  color:#1B0700;
  box-shadow:var(--shadow-accent);
}
.btn--accent:hover{transform:translateY(-1px);filter:brightness(1.05);color:#1B0700;}
.btn--ghost{
  background:transparent;color:var(--text);
  border-color:rgba(120,180,255,.28);
}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
.btn--sm{height:44px;padding:0 22px;font-size:14px;}
.btn--block{width:100%;}
.btn[disabled]{opacity:.3;pointer-events:none;}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(4,8,14,.72);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;
  width:min(320px,86vw);
  background:var(--bg-2);
  border-left:1px solid var(--line);
  padding:20px;
  display:flex;flex-direction:column;gap:18px;
  transform:translateX(100%);
  transition:transform .28s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.drawer.is-open .drawer__panel{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__close{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);font-size:18px;
}
.drawer__nav{display:flex;flex-direction:column;gap:4px;}
.drawer__nav a{
  padding:14px 14px;border-radius:12px;font-size:15px;font-weight:500;color:var(--text-2);
  border:1px solid transparent;
}
.drawer__nav a:hover{background:rgba(23,224,176,.08);border-color:var(--line);color:var(--primary);}
.drawer__nav a.is-active{color:var(--primary);background:rgba(23,224,176,.08);border-color:var(--line-strong);}
.drawer__foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  padding:20px 0 0;
  font-size:13px;color:var(--text-3);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(110,128,153,.6);}
.breadcrumb .current{color:var(--text-2);}

/* ---------- 首屏 ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  opacity:.42;
}
.cat-hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,12,20,.97) 0%,rgba(7,12,20,.72) 52%,rgba(7,12,20,.92) 100%);
}
.cat-hero__inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 340px;gap:48px;align-items:center;
  padding:78px 0 84px;
}
.cat-hero h1{
  font-size:52px;line-height:1.2;font-weight:800;letter-spacing:.01em;
  margin:18px 0 18px;
}
.cat-hero h1 span{color:var(--primary);}
.cat-hero__lead{
  font-size:18px;color:var(--text-2);max-width:560px;line-height:1.75;
}
.cat-hero__actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap;}
.cat-hero__note{
  margin-top:22px;font-size:13px;color:var(--text-3);letter-spacing:.01em;
}
.glass-panel{
  background:rgba(17,28,43,.62);
  border:1px solid rgba(120,180,255,.22);
  border-radius:var(--r-block);
  padding:24px;
  box-shadow:0 18px 40px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.05);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.glass-panel__title{
  font-size:13px;font-weight:600;color:var(--text-3);letter-spacing:.04em;
  display:flex;align-items:center;gap:8px;margin-bottom:18px;
}
.glass-panel__title::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 4px rgba(23,224,176,.14);
}
.glass-metrics{display:flex;flex-direction:column;gap:0;}
.glass-metrics li{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px solid rgba(120,180,255,.12);
}
.glass-metrics li:last-child{border-bottom:0;padding-bottom:0;}
.glass-metrics li:first-child{padding-top:0;}
.glass-metrics .k{font-size:13px;color:var(--text-2);}
.glass-metrics .v{
  font-family:var(--num-font);
  font-size:26px;font-weight:700;letter-spacing:.04em;color:var(--primary);
}
.glass-metrics .v small{font-size:12px;color:var(--text-3);margin-left:3px;font-family:inherit;}
@supports not (backdrop-filter:blur(1px)){
  .glass-panel{background:#111C2B;}
}

/* ---------- 分段大图堆叠 ---------- */
.stack{display:flex;flex-direction:column;gap:32px;}
.stage{
  position:relative;
  border-radius:var(--r-block);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(160deg,#0C1523,#070C14);
  min-height:430px;
  display:flex;align-items:flex-end;
  box-shadow:var(--shadow-card);
}
.stage__img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;
  transform:scale(1.02);
  transition:transform .9s cubic-bezier(.2,.7,.3,1);
}
.stage:hover .stage__img{transform:scale(1.06);}
.stage__veil{
  position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(7,12,20,.96) 0%,rgba(7,12,20,.66) 42%,rgba(7,12,20,.10) 100%);
}
.stage__body{
  position:relative;z-index:2;
  padding:36px;
  max-width:600px;
}
.stage--right .stage__body{margin-left:auto;}
.stage--right .stage__veil{
  background:linear-gradient(0deg,rgba(7,12,20,.96) 0%,rgba(7,12,20,.66) 42%,rgba(7,12,20,.10) 100%),
             linear-gradient(270deg,rgba(7,12,20,.9) 0%,rgba(7,12,20,0) 70%);
}
.stage__tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--primary);
  background:rgba(23,224,176,.10);
  border:1px solid rgba(23,224,176,.32);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:14px;
}
.stage__tag--amber{color:var(--accent-2);background:rgba(255,197,61,.10);border-color:rgba(255,197,61,.32);}
.stage__tag--orange{color:#FF8A5C;background:rgba(255,90,43,.12);border-color:rgba(255,90,43,.34);}
.stage h3{
  font-size:28px;line-height:1.3;font-weight:800;letter-spacing:.01em;
  margin-bottom:14px;
}
.stage p{color:var(--text-2);font-size:15.5px;line-height:1.85;margin-bottom:16px;}
.point-list{display:flex;flex-direction:column;gap:9px;margin-bottom:20px;}
.point-list li{
  position:relative;padding-left:20px;
  font-size:14.5px;color:var(--text-2);line-height:1.7;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  transform:rotate(45deg);
}
.arrow-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--primary);
  letter-spacing:.01em;
}
.arrow-link i{font-style:normal;transition:transform .22s ease;}
.arrow-link:hover i{transform:translateX(5px);}

/* ---------- 时间线 ---------- */
.timeline-wrap{
  background:linear-gradient(180deg,#0A1220,#070C14);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.timeline{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  position:relative;
  margin-top:56px;
}
.timeline::before{
  content:"";position:absolute;left:8px;right:8px;top:36px;height:1px;
  background:linear-gradient(90deg,rgba(23,224,176,.05),rgba(23,224,176,.42),rgba(15,182,232,.42),rgba(23,224,176,.05));
}
.tl-item{position:relative;padding-top:0;}
.tl-num{
  font-family:var(--num-font);
  font-size:46px;font-weight:800;line-height:1;letter-spacing:.04em;
  color:rgba(23,224,176,.22);
  margin-bottom:18px;
  transition:color .25s ease;
}
.tl-item:hover .tl-num{color:rgba(23,224,176,.55);}
.tl-item h3{
  font-size:17px;font-weight:700;letter-spacing:.01em;
  margin-bottom:8px;
}
.tl-item p{font-size:14px;color:var(--text-2);line-height:1.8;}
.tl-dot{
  position:absolute;top:30px;left:0;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2px solid var(--primary);
  box-shadow:0 0 0 4px rgba(23,224,176,.10);
}

/* ---------- 指标卡 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  position:relative;
  overflow:hidden;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.metric-card::after{
  content:"";position:absolute;top:0;left:0;width:46px;height:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.metric-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow-card);}
.metric-card .num{
  font-family:var(--num-font);
  font-size:38px;font-weight:700;letter-spacing:.04em;
  color:var(--text);line-height:1.1;
}
.metric-card .num em{font-style:normal;font-size:16px;color:var(--primary);margin-left:4px;}
.metric-card .label{
  margin-top:10px;font-size:14px;font-weight:600;color:var(--text);
}
.metric-card .desc{
  margin-top:6px;font-size:13px;color:var(--text-3);line-height:1.7;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion.faq-list{
  background:transparent;
  border:0;
  margin:0;
  list-style:none;
}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease;
}
.faq-item.is-active{border-color:var(--line-strong);}
.faq-title{
  position:relative;
  display:block;
  padding:20px 60px 20px 24px;
  font-size:16px;font-weight:600;color:var(--text);
  background:transparent;
  border:0;
  line-height:1.6;
}
.faq-title:hover{background:rgba(23,224,176,.04);color:var(--text);}
.faq-title::before{
  content:"";position:absolute;right:26px;top:50%;
  width:8px;height:8px;
  border-right:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .22s ease;
  display:block;
}
.faq-title[aria-expanded="true"]::before{transform:translateY(-30%) rotate(-135deg);}
.faq-content{
  padding:0 60px 22px 24px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  border-top:0;
  background:transparent;
}
.faq-content p{margin:0;}

/* ---------- 咨询表单 ---------- */
.consult{
  position:relative;
  border-top:1px solid var(--line);
  background:
    radial-gradient(900px 320px at 12% 0%,rgba(23,224,176,.10),transparent 70%),
    linear-gradient(180deg,#0A1220,#070C14 70%);
}
.consult-grid{display:grid;grid-template-columns:1fr 480px;gap:64px;align-items:start;}
.consult h2{
  font-size:34px;line-height:1.25;font-weight:800;letter-spacing:.01em;
  margin:14px 0 18px;
}
.consult p.lead{color:var(--text-2);font-size:16px;line-height:1.85;max-width:460px;}
.consult-points{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.consult-points li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:14.5px;color:var(--text-2);line-height:1.7;
}
.consult-points li::before{
  content:"";
  flex:0 0 auto;
  width:18px;height:18px;border-radius:50%;
  background:rgba(23,224,176,.14);
  border:1px solid rgba(23,224,176,.5);
  margin-top:5px;
  background-image:linear-gradient(135deg,transparent 45%,var(--primary) 45%,var(--primary) 55%,transparent 55%);
}
.form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-block);
  padding:32px;
  box-shadow:var(--shadow-card);
}
.form-card h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.form-card .form-sub{font-size:13px;color:var(--text-3);margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{
  display:block;font-size:13px;font-weight:600;color:var(--text-2);
  margin-bottom:8px;letter-spacing:.01em;
}
.field label .req{color:var(--err);margin-left:3px;}
.field input,.field textarea{
  width:100%;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:0 16px;
  height:48px;
  font-size:15px;
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{
  height:110px;padding:13px 16px;line-height:1.7;resize:vertical;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(110,128,153,.75);}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(23,224,176,.18);
  background:#0D1826;
}
.form-foot{
  margin-top:6px;font-size:12.5px;color:var(--text-3);line-height:1.7;
}
.form-msg{
  margin-top:14px;font-size:13.5px;color:var(--ok);
  display:none;
}
.form-msg.is-show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#060A11;
  border-top:1px solid var(--line);
  padding:72px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand p{
  margin-top:18px;font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px;
}
.footer-contact{margin-top:12px;color:var(--text-3)!important;font-size:13px!important;}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--text);letter-spacing:.02em;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--primary);}
.footer-col p{font-size:13.5px;color:var(--text-2);line-height:1.85;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .cat-hero__inner{grid-template-columns:1fr 300px;gap:36px;}
  .cat-hero h1{font-size:44px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .consult-grid{grid-template-columns:1fr 420px;gap:44px;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .header-link{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:64px;gap:16px;}
  .header-actions .btn--sm{display:none;}
  .section{padding:76px 0;}
  .cat-hero__inner{grid-template-columns:1fr;padding:56px 0 64px;gap:32px;}
  .cat-hero h1{font-size:38px;}
  .glass-panel{max-width:420px;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:32px;}
  .timeline::before{display:none;}
  .consult-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stage{min-height:380px;}
  .stage__body{padding:28px;max-width:100%;}
  .stage h3{font-size:24px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  body{font-size:15px;}
  .notice-bar__inner{height:auto;padding:8px 0;flex-wrap:wrap;}
  .notice-bar__inner p{font-size:12px;white-space:normal;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:25px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero__lead{font-size:16px;}
  .cat-hero__actions{gap:10px;}
  .cat-hero__actions .btn{width:100%;}
  .brand__text{font-size:16px;}
  .brand__latin{font-size:15px;}
  .stack{gap:20px;}
  .stage{min-height:340px;border-radius:18px;}
  .stage__body{padding:22px;}
  .stage h3{font-size:21px;}
  .stage p{font-size:14.5px;}
  .timeline{grid-template-columns:1fr;gap:26px;margin-top:32px;}
  .tl-num{font-size:38px;margin-bottom:10px;}
  .tl-dot{display:none;}
  .metric-grid{grid-template-columns:1fr;gap:14px;}
  .metric-card{padding:20px;}
  .metric-card .num{font-size:32px;}
  .faq-title{font-size:15px;padding:16px 52px 16px 18px;}
  .faq-content{padding:0 18px 18px 18px;font-size:14px;}
  .form-card{padding:22px;border-radius:18px;}
  .consult h2{font-size:25px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{padding-top:52px;}
}
@media (max-width:519px){
  .cat-hero h1{font-size:26px;}
  .stage h3{font-size:19px;}
  .btn{height:46px;padding:0 20px;font-size:14px;}
  .glass-panel{padding:18px;}
  .glass-metrics .v{font-size:22px;}
}