/* roulang page: index */
:root{
  --ink-950:#080b1a;
  --ink-900:#0d1126;
  --ink-850:#111533;
  --ink-800:#1a1f3d;
  --ink-700:#242b55;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --text:#eef1ff;
  --text-dim:#a6adcb;
  --gold:#ffb400;
  --gold-2:#ffd66b;
  --cyan:#38e8d0;
  --paper:#f4f5fb;
  --paper-line:#e4e7f2;
  --ink-text:#171a2c;
  --ink-text-dim:#5b6280;
  --radius-xl:24px;
  --radius-lg:20px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-card:0 12px 32px rgba(11,15,38,.09);
  --shadow-soft:0 3px 12px rgba(11,15,38,.06);
  --shadow-dark:0 20px 44px rgba(0,0,0,.38);
  --maxw:1180px;
  --gap:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--ink-950);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
img{max-width:100%;display:block;border:0}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:0;list-style:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,11,26,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 26px rgba(0,0,0,.35);
}
.nav-shell{position:relative;display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--gold) 0%,#ff8a00 100%);
  display:grid;place-items:center;color:#1d1400;font-weight:900;font-size:15px;
  box-shadow:0 8px 20px rgba(255,180,0,.36);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.4px;line-height:1.2}
.brand-text small{display:block;font-size:10.5px;font-weight:500;letter-spacing:2.4px;color:var(--text-dim);text-transform:uppercase;margin-top:3px}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.site-nav a{
  position:relative;padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--text-dim);
  transition:color .22s ease,background .22s ease,box-shadow .22s ease,transform .22s ease;
  white-space:nowrap;
}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.07);transform:translateY(-1px)}
.site-nav a.is-active{
  color:#141000;font-weight:800;
  background:linear-gradient(135deg,var(--gold) 0%,var(--gold-2) 100%);
  box-shadow:0 0 0 1px rgba(255,214,107,.5),0 8px 24px rgba(255,180,0,.4);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:7px;flex-shrink:0;
  padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;
  color:var(--cyan);border:1px solid rgba(56,232,208,.45);
  background:rgba(56,232,208,.08);
  transition:.24s ease;
}
.nav-cta:hover{background:rgba(56,232,208,.18);box-shadow:0 0 22px rgba(56,232,208,.35);color:#eafffb;transform:translateY(-1px)}
.nav-toggle{
  display:none;margin-left:auto;background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:var(--text);
  border-radius:10px;padding:9px 14px;font-size:14px;font-weight:600;
}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;padding:78px 0 58px;isolation:isolate}
.hero__bg{
  position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.30;filter:saturate(1.15);
}
.hero__veil{
  position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(1000px 460px at 82% -12%,rgba(255,180,0,.22),transparent 62%),
    radial-gradient(880px 420px at 2% 24%,rgba(56,232,208,.15),transparent 64%),
    linear-gradient(165deg,rgba(9,12,30,.92) 0%,rgba(17,21,51,.94) 58%,rgba(8,11,26,.98) 100%);
}
.hero__inner{max-width:940px}
.hero-sticker{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px 7px 8px;border-radius:999px;
  background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.4);
  font-size:13px;font-weight:700;color:var(--gold-2);margin-bottom:22px;
}
.hero-sticker b{
  display:inline-block;padding:3px 10px;border-radius:999px;
  background:linear-gradient(135deg,var(--gold),#ff8a00);color:#1d1400;font-size:12px;font-weight:900;
  letter-spacing:.5px;
}
.hero h1{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.24;font-weight:900;letter-spacing:.5px;margin-bottom:18px;
  background:linear-gradient(180deg,#ffffff 32%,#cfd6ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--gold) 0%,#ff8a00 60%,var(--gold-2) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:clamp(17px,1.9vw,21px);font-weight:700;color:#ffffff;
  margin-bottom:16px;letter-spacing:.2px;
}
.hero-desc{font-size:15.5px;color:var(--text-dim);max-width:820px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:13px;font-weight:800;font-size:15px;
  border:1px solid transparent;line-height:1;transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
}
.btn-gold{
  background:linear-gradient(135deg,#ffc83c 0%,#ff9a00 100%);color:#1d1400;
  box-shadow:0 12px 28px rgba(255,154,0,.32);
}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(255,154,0,.46);color:#1d1400}
.btn-ghost{
  background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2);color:var(--text);
}
.btn-ghost:hover{background:rgba(56,232,208,.14);border-color:rgba(56,232,208,.7);color:#ffffff;transform:translateY(-3px)}
.btn:active{transform:translateY(0) scale(.99)}

.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
}
.stat-item{background:rgba(13,17,38,.86);padding:20px 22px}
.stat-num{
  font-size:clamp(24px,2.6vw,32px);font-weight:900;letter-spacing:.5px;
  background:linear-gradient(120deg,var(--gold-2),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1.2;
}
.stat-num span{font-size:15px;font-weight:700;margin-left:2px}
.stat-label{font-size:13px;color:var(--text-dim);margin-top:6px}

/* ============ SECTION 基础 ============ */
.section{padding:76px 0;position:relative;background:var(--ink-950)}
.section--alt{background:linear-gradient(180deg,#0b0f26 0%,#0a0d22 100%)}
.section--panel{background:#0d1128}
.section--light{background:var(--paper);color:var(--ink-text)}
.section--tight{padding:54px 0}
.section-head{max-width:760px;margin-bottom:38px}
.section-head--center{margin-inline:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;letter-spacing:2.6px;font-weight:800;text-transform:uppercase;
  color:var(--gold);margin-bottom:13px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--gold),transparent)}
.section-title{
  font-size:clamp(23px,2.7vw,34px);line-height:1.36;font-weight:900;letter-spacing:.4px;margin-bottom:14px;
}
.section-desc{font-size:15.5px;color:var(--text-dim);max-width:760px}
.section--light .section-desc{color:var(--ink-text-dim)}
.section--light .section-title{color:var(--ink-text)}
.section--light .eyebrow{color:#a57800}

/* ============ 通用卡片 / 网格 ============ */
.grid{display:grid;gap:var(--gap)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:linear-gradient(180deg,rgba(255,255,255,.052) 0%,rgba(255,255,255,.016) 100%);
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease,background .26s ease;
}
.card:hover{transform:translateY(-5px);border-color:rgba(255,180,0,.42);box-shadow:var(--shadow-dark)}
.card h3{font-size:18px;font-weight:800;margin-bottom:10px;line-height:1.45}
.card p{font-size:14.5px;color:var(--text-dim)}
.card-num{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;
  font-weight:900;font-size:15px;color:#1d1400;
  background:linear-gradient(135deg,var(--gold),#ff8a00);
  margin-bottom:16px;box-shadow:0 8px 18px rgba(255,180,0,.28);
}
.card-index{
  font-size:12.5px;font-weight:800;letter-spacing:2px;color:var(--cyan);margin-bottom:12px;
}
.tag{
  display:inline-block;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(56,232,208,.12);border:1px solid rgba(56,232,208,.35);color:#9df6ea;
}
.tag--gold{background:rgba(255,180,0,.14);border-color:rgba(255,180,0,.42);color:var(--gold-2)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* ============ 痛点 ============ */
.pain-item{display:flex;gap:16px;padding:22px 0;border-bottom:1px dashed var(--line)}
.pain-item:last-child{border-bottom:0}
.pain-icon{
  flex:0 0 44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.32);
  color:var(--gold-2);font-weight:900;font-size:15px;
}
.pain-item h3{font-size:16.5px;font-weight:800;margin-bottom:6px}
.pain-item p{font-size:14.5px;color:var(--text-dim)}

/* ============ 图文两栏 ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.split-media{position:relative;border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-dark)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .6s ease}
.split-media:hover img{transform:scale(1.04)}
.split-media__badge{
  position:absolute;left:18px;bottom:18px;
  padding:10px 16px;border-radius:12px;font-size:13px;font-weight:800;
  background:rgba(10,13,34,.86);border:1px solid rgba(255,180,0,.45);color:var(--gold-2);
  backdrop-filter:blur(8px);
}
.percent-list{display:grid;gap:16px;margin-top:26px}
.percent-row{display:grid;grid-template-columns:104px 1fr 54px;gap:14px;align-items:center;font-size:14px}
.percent-row span:first-child{color:var(--text-dim);font-size:13.5px}
.percent-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.percent-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--gold),#ff8a00)}
.percent-row b{font-size:13.5px;color:var(--gold-2);text-align:right}

/* ============ 步骤（浅色区） ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--paper-line);border-radius:var(--radius-lg);
  padding:26px 22px 24px;box-shadow:var(--shadow-soft);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow-card);border-color:rgba(255,180,0,.6)}
.step__num{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--gold),#ff8a00);color:#1d1400;font-weight:900;font-size:14px;
  margin-bottom:16px;
}
.step h3{font-size:16.5px;font-weight:800;color:var(--ink-text);margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-text-dim)}
.step__meta{display:block;margin-top:14px;font-size:12.5px;font-weight:800;letter-spacing:1px;color:#a57800}

/* ============ 入口矩阵 ============ */
.entry-card{
  position:relative;overflow:hidden;display:block;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.012));
  padding:28px 26px;transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.entry-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:130px;height:130px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,180,0,.28),transparent 70%);
  transition:transform .4s ease;
}
.entry-card:hover{transform:translateY(-6px);border-color:rgba(255,180,0,.5);box-shadow:var(--shadow-dark)}
.entry-card:hover::after{transform:scale(1.5)}
.entry-card h3{font-size:19px;font-weight:900;margin:14px 0 10px}
.entry-card p{font-size:14.5px;color:var(--text-dim);margin-bottom:16px}
.entry-link{font-size:13.5px;font-weight:800;color:var(--gold-2);letter-spacing:.6px}

/* ============ CMS 资讯卡 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.news-card{
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.014));
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.news-card:hover{transform:translateY(-5px);border-color:rgba(56,232,208,.45);box-shadow:var(--shadow-dark)}
.news-card__media{display:block;aspect-ratio:16/10;overflow:hidden;background:#11162f}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.news-card:hover .news-card__media img{transform:scale(1.06)}
.news-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card__title{font-size:16.5px;font-weight:800;line-height:1.5}
.news-card__title a:hover{color:var(--gold-2)}
.news-card__excerpt{font-size:14px;color:var(--text-dim);flex:1}
.news-card__meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:#8b93b4;border-top:1px solid var(--line-soft);padding-top:12px}
.news-card__meta .dot{width:4px;height:4px;border-radius:50%;background:#59608a}
.empty-note{
  padding:34px;border:1px dashed var(--line);border-radius:var(--radius-lg);
  text-align:center;color:var(--text-dim);font-size:14.5px;
}

/* ============ 资讯双栏 ============ */
.news-layout{display:grid;grid-template-columns:1.55fr .95fr;gap:34px;align-items:start}
.news-list{display:grid;gap:16px}
.news-row{
  display:grid;grid-template-columns:112px 1fr;gap:18px;align-items:center;
  padding:14px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:rgba(255,255,255,.03);
  transition:border-color .24s ease,transform .24s ease,background .24s ease;
}
.news-row:hover{border-color:rgba(255,180,0,.45);transform:translateX(4px);background:rgba(255,255,255,.055)}
.news-row__thumb{aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:#11162f}
.news-row__thumb img{width:100%;height:100%;object-fit:cover}
.news-row h3{font-size:16px;font-weight:800;margin-bottom:6px;line-height:1.5}
.news-row p{font-size:13.5px;color:var(--text-dim)}
.news-row__meta{font-size:12.5px;color:#8b93b4;margin-top:8px}
.side-panel{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,180,0,.09),rgba(255,255,255,.02));
  padding:24px;
}
.side-panel h3{font-size:17px;font-weight:900;margin-bottom:16px}
.side-list{display:grid;gap:14px}
.side-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;line-height:1.6}
.side-list li b{color:var(--gold-2);font-weight:900;font-size:13px;flex:0 0 22px}
.side-list li a:hover{color:var(--gold-2)}

/* ============ 专题卡 ============ */
.topic-card{
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:rgba(255,255,255,.035);
  transition:transform .26s ease,border-color .26s ease;
}
.topic-card:hover{transform:translateY(-5px);border-color:rgba(255,180,0,.5)}
.topic-card img{aspect-ratio:16/10;object-fit:cover;width:100%}
.topic-card__body{padding:18px 20px 22px}
.topic-card h3{font-size:16px;font-weight:800;margin-bottom:8px}
.topic-card p{font-size:13.5px;color:var(--text-dim)}

/* ============ 版本更新 ============ */
.log-list{border-left:1px solid var(--line);margin-left:6px;padding-left:0}
.log-item{position:relative;padding:0 0 28px 28px}
.log-item:last-child{padding-bottom:0}
.log-item::before{
  content:"";position:absolute;left:-6px;top:7px;width:11px;height:11px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.16);
}
.log-ver{font-size:12.5px;font-weight:900;letter-spacing:1.6px;color:var(--gold-2);margin-bottom:6px}
.log-item h3{font-size:16.5px;font-weight:800;margin-bottom:6px}
.log-item p{font-size:14px;color:var(--text-dim)}

/* ============ 案例 / 口碑 ============ */
.case-card{
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;
  background:linear-gradient(180deg,rgba(56,232,208,.07),rgba(255,255,255,.015));
  transition:transform .26s ease,border-color .26s ease;
}
.case-card:hover{transform:translateY(-5px);border-color:rgba(56,232,208,.45)}
.case-card h3{font-size:17px;font-weight:900;margin-bottom:6px}
.case-card__role{font-size:13px;color:#8b93b4;margin-bottom:16px}
.case-compare{display:flex;align-items:center;gap:12px;margin:14px 0}
.case-compare div{
  flex:1;text-align:center;padding:11px 8px;border-radius:11px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-soft);
}
.case-compare small{display:block;font-size:11.5px;color:#8b93b4;margin-bottom:3px;letter-spacing:.6px}
.case-compare b{font-size:17px;font-weight:900}
.case-compare .is-up b{color:var(--cyan)}
.case-compare .is-before b{color:#b9c0dd}
.case-arrow{color:var(--gold);font-weight:900;flex:0 0 auto}
.case-card p{font-size:14px;color:var(--text-dim)}
.quote-card{
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;
  background:rgba(255,255,255,.035);position:relative;
  transition:transform .26s ease,border-color .26s ease;
}
.quote-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.42)}
.quote-card::before{
  content:"“";position:absolute;right:22px;top:6px;font-size:56px;line-height:1;
  color:rgba(255,180,0,.24);font-family:Georgia,serif;
}
.quote-card p{font-size:14.5px;color:#dfe3f6;margin-bottom:16px}
.quote-user{display:flex;align-items:center;gap:11px;font-size:13.5px;color:var(--text-dim)}
.quote-avatar{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-weight:900;font-size:13px;
  background:linear-gradient(135deg,var(--ink-700),var(--ink-800));border:1px solid var(--line);color:var(--gold-2);
}

/* ============ 人群矩阵 ============ */
.persona{
  border:1px solid var(--line);border-radius:var(--radius-md);padding:22px;
  background:rgba(255,255,255,.03);transition:border-color .24s ease,transform .24s ease;
}
.persona:hover{border-color:rgba(255,180,0,.45);transform:translateY(-4px)}
.persona h3{font-size:16px;font-weight:800;margin-bottom:8px}
.persona p{font-size:14px;color:var(--text-dim)}

/* ============ 数据指标 ============ */
.metric-row{
  display:grid;grid-template-columns:repeat(5,1fr);gap:18px;
}
.metric{
  text-align:center;padding:26px 14px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:rgba(255,255,255,.035);
}
.metric b{
  display:block;font-size:clamp(22px,2.4vw,30px);font-weight:900;
  background:linear-gradient(120deg,var(--gold-2),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1.2;margin-bottom:6px;
}
.metric span{font-size:13px;color:var(--text-dim)}

/* ============ FAQ ============ */
.faq{display:grid;gap:14px;max-width:900px;margin-inline:auto}
.faq details{
  background:#fff;border:1px solid var(--paper-line);border-radius:var(--radius-md);
  padding:18px 22px;box-shadow:var(--shadow-soft);
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq details[open]{border-color:rgba(255,180,0,.7);box-shadow:var(--shadow-card)}
.faq summary{
  cursor:pointer;font-size:16px;font-weight:800;color:var(--ink-text);
  list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:20px;font-weight:800;color:#a57800;flex:0 0 auto;transition:transform .24s ease;
}
.faq details[open] summary::after{content:"–";transform:rotate(180deg)}
.faq p{margin-top:12px;font-size:14.5px;color:var(--ink-text-dim)}

/* ============ 收口 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  border:1px solid rgba(255,180,0,.34);
  background:
    radial-gradient(700px 300px at 88% 10%,rgba(255,180,0,.26),transparent 65%),
    linear-gradient(140deg,#1a1f3d 0%,#111533 60%,#0b0e24 100%);
  padding:46px 40px;
  display:grid;grid-template-columns:1.5fr .9fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:clamp(21px,2.4vw,29px);font-weight:900;line-height:1.4;margin-bottom:12px}
.cta-band p{font-size:15px;color:#c3c9e6;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ============ FOOTER ============ */
.site-footer{
  background:#070a18;border-top:1px solid var(--line);padding:56px 0 26px;color:var(--text-dim);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid var(--line-soft)}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;color:var(--text);font-weight:900;font-size:16px}
.footer-desc{font-size:14px;max-width:420px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:1px}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--text-dim);padding:5px 0;transition:color .2s ease}
.footer-col a:hover{color:var(--gold-2)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:22px;font-size:13px;color:#767ea0}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:30px}
  .news-layout{grid-template-columns:1fr}
  .metric-row{grid-template-columns:repeat(3,1fr)}
  .cta-band{grid-template-columns:1fr;padding:36px 28px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:920px){
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .site-nav{
    position:absolute;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    background:#0a0e24;border-bottom:1px solid var(--line);
    padding:14px 20px 22px;display:none;
    box-shadow:0 20px 40px rgba(0,0,0,.5);
  }
  .site-nav.is-open{display:flex}
  .site-nav a{padding:12px 16px;border-radius:12px;font-size:15px}
}
@media (max-width:768px){
  .hero{padding:56px 0 44px}
  .section{padding:56px 0}
  .grid-2{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .grid-4{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .metric-row{grid-template-columns:1fr 1fr}
  .cta-band{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr}
  .news-row{grid-template-columns:88px 1fr;gap:14px}
  .percent-row{grid-template-columns:84px 1fr 48px;gap:10px;font-size:13px}
}
@media (max-width:520px){
  .brand-text{font-size:14px}
  .brand-text small{font-size:9px;letter-spacing:1.6px}
  .stat-strip{grid-template-columns:1fr}
  .metric-row{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .news-row{grid-template-columns:1fr}
  .news-row__thumb{aspect-ratio:16/9}
  .card,.news-card__body{padding:20px}
}

/* roulang page: article */
:root{
 --ink-950:#080b1a;
 --ink-900:#0d1126;
 --ink-850:#111533;
 --ink-800:#1a1f3d;
 --ink-700:#242b55;
 --line:rgba(255,255,255,.10);
 --line-soft:rgba(255,255,255,.06);
 --text:#eef1ff;
 --text-dim:#a6adcb;
 --gold:#ffb400;
 --gold-2:#ffd66b;
 --cyan:#38e8d0;
 --paper:#f4f5fb;
 --paper-line:#e4e7f2;
 --ink-text:#171a2c;
 --ink-text-dim:#5b6280;
 --radius-xl:24px;
 --radius-lg:20px;
 --radius-md:12px;
 --radius-sm:8px;
 --shadow-card:0 12px 32px rgba(11,15,38,.09);
 --shadow-soft:0 3px 12px rgba(11,15,38,.06);
 --shadow-dark:0 20px 44px rgba(0,0,0,.38);
 --maxw:1180px;
 --gap:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 background:var(--ink-950);
 color:var(--text);
 line-height:1.75;
 font-size:16px;
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
img{max-width:100%;display:block;border:0}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}

/* ============ HEADER / NAV ============ */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,11,26,.88);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 box-shadow:0 8px 26px rgba(0,0,0,.35);
}
.nav-shell{position:relative;display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 background:linear-gradient(135deg,var(--gold) 0%,#ff8a00 100%);
 display:grid;place-items:center;color:#1d1400;font-weight:900;font-size:15px;
 box-shadow:0 8px 20px rgba(255,180,0,.36);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.4px;line-height:1.2}
.brand-text small{display:block;font-size:10.5px;font-weight:500;letter-spacing:2.4px;color:var(--text-dim);text-transform:uppercase;margin-top:3px}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.site-nav a{
 position:relative;padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--text-dim);
 transition:color .22s ease,background .22s ease,box-shadow .22s ease,transform .22s ease;
 white-space:nowrap;
}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.07);transform:translateY(-1px)}
.site-nav a.is-active{
 color:#141000;font-weight:800;
 background:linear-gradient(135deg,var(--gold) 0%,var(--gold-2) 100%);
 box-shadow:0 0 0 1px rgba(255,214,107,.5),0 8px 24px rgba(255,180,0,.4);
}
.nav-cta{
 display:inline-flex;align-items:center;gap:7px;flex-shrink:0;
 padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;
 color:var(--cyan);border:1px solid rgba(56,232,208,.45);
 background:rgba(56,232,208,.08);
 transition:.24s ease;
}
.nav-cta:hover{background:rgba(56,232,208,.18);box-shadow:0 0 22px rgba(56,232,208,.35);color:#eafffb;transform:translateY(-1px)}
.nav-toggle{
 display:none;margin-left:auto;background:rgba(255,255,255,.05);
 border:1px solid var(--line);color:var(--text);
 border-radius:10px;padding:9px 14px;font-size:14px;font-weight:600;
}
.nav-toggle:hover{background:rgba(255,255,255,.1)}

/* ============ 通用按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:14px 28px;border-radius:13px;font-weight:800;font-size:15px;
 border:1px solid transparent;line-height:1;transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
}
.btn-gold{background:linear-gradient(135deg,#ffc83c 0%,#ff9a00 100%);color:#1d1400;box-shadow:0 12px 28px rgba(255,154,0,.32)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(255,154,0,.46);color:#1d1400}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2);color:var(--text)}
.btn-ghost:hover{background:rgba(56,232,208,.14);border-color:rgba(56,232,208,.7);color:#fff;transform:translateY(-3px)}
.btn:active{transform:translateY(0) scale(.99)}
.btn-sm{padding:11px 20px;font-size:13.5px;border-radius:11px}

/* ============ 文章头部 ============ */
.article-hero{position:relative;overflow:hidden;padding:56px 0 50px;isolation:isolate;border-bottom:1px solid var(--line-soft)}
.article-hero__bg{
 position:absolute;inset:0;z-index:-2;
 background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 opacity:.26;filter:saturate(1.1);
}
.article-hero__veil{
 position:absolute;inset:0;z-index:-1;
 background:
 radial-gradient(900px 420px at 84% -18%,rgba(255,180,0,.22),transparent 62%),
 radial-gradient(760px 380px at 0% 30%,rgba(56,232,208,.14),transparent 66%),
 linear-gradient(168deg,rgba(9,12,30,.93) 0%,rgba(17,21,51,.95) 60%,rgba(8,11,26,.99) 100%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-dim);margin-bottom:20px}
.crumbs a{color:var(--text-dim);transition:color .2s ease}
.crumbs a:hover{color:var(--gold-2)}
.crumbs span{color:rgba(255,255,255,.28)}
.article-hero h1{
 font-size:clamp(26px,3.6vw,44px);
 line-height:1.3;font-weight:900;letter-spacing:.4px;margin-bottom:18px;max-width:960px;
 background:linear-gradient(180deg,#ffffff 34%,#ccd4ff 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-lede{max-width:840px;font-size:15.5px;color:var(--text-dim);margin-bottom:24px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:13px;color:var(--text-dim)}
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:700;
 background:rgba(255,180,0,.14);border:1px solid rgba(255,180,0,.4);color:var(--gold-2);
}
.tag--cyan{background:rgba(56,232,208,.1);border-color:rgba(56,232,208,.4);color:var(--cyan)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.28)}

/* ============ SECTION ============ */
.section{padding:72px 0;position:relative;background:var(--ink-950)}
.section--tight{padding:46px 0}
.section--alt{background:linear-gradient(180deg,#0b0f26 0%,#0a0d22 100%)}
.section--panel{background:#0d1128}
.section--light{background:var(--paper);color:var(--ink-text)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{
 font-size:clamp(22px,2.5vw,30px);font-weight:900;letter-spacing:.3px;line-height:1.35;margin-bottom:10px;
}
.section-head p{font-size:15px;color:var(--text-dim)}
.section--light .section-head p{color:var(--ink-text-dim)}
.kicker{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;letter-spacing:2px;
 color:var(--gold-2);text-transform:uppercase;margin-bottom:12px;
}
.kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--gold),transparent)}
.section--light .kicker{color:#b07800}

/* ============ 数据条 ============ */
.stat-strip{
 display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.stat-item{
 background:rgba(13,17,38,.86);border:1px solid var(--line);
 padding:20px 22px;border-radius:var(--radius-md);
 transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.stat-item:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.45);box-shadow:0 14px 32px rgba(0,0,0,.35)}
.stat-item b{
 display:block;font-size:28px;font-weight:900;line-height:1.15;
 background:linear-gradient(120deg,var(--gold) 0%,var(--gold-2) 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-item span{display:block;font-size:12.5px;color:var(--text-dim);margin-top:6px;letter-spacing:.4px}

/* ============ 正文排版 ============ */
.article-wrap{max-width:880px;margin-inline:auto}
.prose{font-size:16.5px;line-height:1.95;color:#2a2f47}
.prose > * + *{margin-top:18px}
.prose h2{
 font-size:clamp(20px,2.2vw,25px);font-weight:900;color:var(--ink-text);
 margin-top:40px;padding-left:14px;border-left:4px solid var(--gold);line-height:1.45;
}
.prose h3{font-size:18px;font-weight:800;color:var(--ink-text);margin-top:30px}
.prose p{color:#3a4160}
.prose strong{color:#141830;font-weight:800}
.prose a{color:#b07800;border-bottom:1px solid rgba(176,120,0,.35)}
.prose a:hover{color:#8a5f00}
.prose ul,.prose ol{padding-left:0;display:grid;gap:10px}
.prose ul li,.prose ol li{
 position:relative;padding:12px 16px 12px 40px;border-radius:var(--radius-md);
 background:#fff;border:1px solid var(--paper-line);box-shadow:var(--shadow-soft);color:#3a4160;
}
.prose ul li::before{
 content:"";position:absolute;left:16px;top:21px;width:8px;height:8px;border-radius:50%;
 background:linear-gradient(135deg,var(--gold),#ff8a00);
}
.prose ol{counter-reset:prose-ol}
.prose ol li{counter-increment:prose-ol}
.prose ol li::before{
 content:counter(prose-ol);position:absolute;left:12px;top:11px;
 width:20px;height:20px;border-radius:6px;display:grid;place-items:center;
 background:linear-gradient(135deg,var(--gold),#ff9a00);color:#1d1400;
 font-size:12px;font-weight:900;line-height:1;
}
.prose blockquote{
 margin:26px 0;padding:18px 22px;border-radius:var(--radius-md);
 background:#fffaf0;border:1px solid #f2e2bd;border-left:4px solid var(--gold);
 color:#5c4a1f;font-size:15.5px;
}
.prose img{border-radius:var(--radius-md);box-shadow:var(--shadow-card);margin:24px auto}
.prose table{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-soft)}
.prose th{background:#12162f;color:#fff;font-weight:800;padding:12px 14px;text-align:left}
.prose td{padding:11px 14px;border-top:1px solid var(--paper-line);color:#3a4160}
.prose tr:nth-child(even) td{background:#fafbff}
.prose hr{border:0;height:1px;background:var(--paper-line);margin:34px 0}
.article-card{
 background:#fff;border:1px solid var(--paper-line);border-radius:var(--radius-lg);
 padding:clamp(20px,3.4vw,44px);box-shadow:var(--shadow-card);
}
.empty-state{text-align:center;padding:56px 24px;background:#fff;border:1px solid var(--paper-line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}
.empty-state h2{font-size:22px;font-weight:900;color:var(--ink-text);margin-bottom:10px}
.empty-state p{color:var(--ink-text-dim);margin-bottom:22px}
.empty-state .btn-gold{box-shadow:0 10px 24px rgba(255,154,0,.28)}

/* ============ 卡片网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.card{
 background:rgba(17,21,51,.82);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px 24px;transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease,background .26s ease;
 height:100%;
}
.card:hover{transform:translateY(-5px);border-color:rgba(255,180,0,.4);box-shadow:0 18px 40px rgba(0,0,0,.42);background:rgba(20,25,60,.92)}
.card h3{font-size:17.5px;font-weight:800;margin-bottom:10px;color:#fff}
.card p{font-size:14.5px;color:var(--text-dim);line-height:1.85}
.card-num{
 display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;
 background:linear-gradient(135deg,rgba(255,180,0,.22),rgba(255,138,0,.12));
 border:1px solid rgba(255,180,0,.42);color:var(--gold-2);
 font-weight:900;font-size:15px;margin-bottom:14px;
}
.card-media{
 border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
 background:rgba(17,21,51,.82);transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
 height:100%;display:flex;flex-direction:column;
}
.card-media:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(0,0,0,.45);border-color:rgba(56,232,208,.4)}
.card-media img{width:100%;height:186px;object-fit:cover}
.card-media .card-body{padding:20px 22px 24px}
.card-media h3{font-size:16.5px;font-weight:800;margin-bottom:8px;color:#fff}
.card-media p{font-size:14px;color:var(--text-dim);line-height:1.8}
.mini-tag{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:1px;color:var(--cyan);margin-bottom:9px;text-transform:uppercase}

/* ============ 步骤列表 ============ */
.step-list{display:grid;gap:14px;counter-reset:step}
.step-item{
 display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;
 background:rgba(13,17,38,.82);border:1px solid var(--line);border-radius:var(--radius-md);
 padding:20px 22px;transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.step-item:hover{border-color:rgba(56,232,208,.42);transform:translateX(4px);background:rgba(17,22,50,.95)}
.step-item .step-idx{
 width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
 background:linear-gradient(135deg,var(--gold),#ff8a00);color:#1d1400;font-weight:900;font-size:15px;
}
.step-item h3{font-size:16.5px;font-weight:800;margin-bottom:6px;color:#fff}
.step-item p{font-size:14.5px;color:var(--text-dim);line-height:1.85}

/* ============ 版本列表 ============ */
.timeline{display:grid;gap:0;border-left:2px solid rgba(255,180,0,.28);margin-left:6px;padding-left:24px}
.timeline-item{position:relative;padding:0 0 26px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
 content:"";position:absolute;left:-31px;top:8px;width:11px;height:11px;border-radius:50%;
 background:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.16);
}
.timeline-item h3{font-size:16px;font-weight:800;color:#fff;margin-bottom:6px}
.timeline-item p{font-size:14.5px;color:var(--text-dim);line-height:1.85}
.timeline-item em{font-style:normal;font-size:12.5px;font-weight:800;color:var(--cyan);letter-spacing:1px;display:block;margin-bottom:6px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
 background:#fff;border:1px solid var(--paper-line);border-radius:var(--radius-md);
 box-shadow:var(--shadow-soft);overflow:hidden;transition:box-shadow .24s ease,border-color .24s ease;
}
.faq-item[open]{box-shadow:var(--shadow-card);border-color:#f0d79a}
.faq-item summary{
 list-style:none;cursor:pointer;padding:17px 52px 17px 22px;position:relative;
 font-size:15.5px;font-weight:800;color:var(--ink-text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
 width:24px;height:24px;border-radius:50%;display:grid;place-items:center;
 background:#f3f5fc;color:#8a90ab;font-weight:900;font-size:15px;line-height:1;
 transition:transform .22s ease,background .22s ease,color .22s ease;
}
.faq-item[open] summary::after{content:"−";background:linear-gradient(135deg,var(--gold),#ff9a00);color:#1d1400;transform:translateY(-50%) rotate(180deg)}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;line-height:1.9;color:var(--ink-text-dim)}

/* ============ 收口 CTA ============ */
.cta-band{
 position:relative;overflow:hidden;border-radius:var(--radius-xl);
 border:1px solid rgba(255,180,0,.35);
 background:
 radial-gradient(600px 260px at 88% 0%,rgba(255,180,0,.22),transparent 62%),
 radial-gradient(520px 240px at 4% 100%,rgba(56,232,208,.16),transparent 64%),
 linear-gradient(150deg,#121734 0%,#0a0e24 100%);
 padding:clamp(28px,4vw,50px);display:grid;grid-template-columns:1.5fr auto;gap:26px;align-items:center;
 box-shadow:var(--shadow-dark);
}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);font-weight:900;line-height:1.4;margin-bottom:10px;color:#fff}
.cta-band p{font-size:14.8px;color:var(--text-dim);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ FOOTER ============ */
.site-footer{background:#060814;border-top:1px solid var(--line);padding:56px 0 26px;color:var(--text-dim)}
.footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr;gap:38px;padding-bottom:34px;border-bottom:1px solid var(--line-soft)}
.footer-brand{display:flex;align-items:center;gap:11px;font-size:16px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.9;color:var(--text-dim);max-width:520px}
.footer-col h4{font-size:13.5px;font-weight:800;color:#fff;letter-spacing:1.4px;margin-bottom:14px}
.footer-col a{display:block;font-size:14px;color:var(--text-dim);padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--gold-2);transform:translateX(3px)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;padding-top:22px;font-size:12.8px;color:#7b83a5}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .stat-strip{grid-template-columns:repeat(2,1fr)}
 .grid-3{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .cta-band{grid-template-columns:1fr}
}
@media (max-width:980px){
 .nav-toggle{display:inline-flex;align-items:center}
 .nav-cta{display:none}
 .site-nav{
  position:absolute;top:100%;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  background:rgba(8,11,26,.98);
  border-bottom:1px solid var(--line);
  padding:12px 20px 18px;
  box-shadow:0 22px 40px rgba(0,0,0,.5);
  display:none;
 }
 .site-nav.is-open{display:flex}
 .site-nav a{padding:12px 14px;border-radius:10px;font-size:15px}
 .site-nav a:hover{transform:none}
 .hero,.article-hero{padding-top:44px}
}
@media (max-width:768px){
 .section{padding:54px 0}
 .section--tight{padding:36px 0}
 .grid-3,.grid-2{grid-template-columns:1fr}
 .stat-strip{grid-template-columns:repeat(2,1fr);gap:12px}
 .stat-item{padding:16px 16px}
 .stat-item b{font-size:23px}
 .article-hero h1{font-size:24px}
 .prose{font-size:16px}
 .card-media img{height:170px}
 .footer-grid{grid-template-columns:1fr;gap:24px}
 .step-item{grid-template-columns:1fr;gap:12px}
 .step-item:hover{transform:none}
 .brand-text{font-size:14.5px}
 .brand-text small{letter-spacing:1.6px}
}
@media (max-width:520px){
 .container{padding-inline:16px}
 .nav-shell{height:64px;gap:10px}
 .brand-mark{width:32px;height:32px;border-radius:9px;font-size:13px}
 .btn{width:100%;padding:14px 20px}
 .cta-actions{width:100%}
 .stat-strip{grid-template-columns:1fr 1fr}
 .stat-item b{font-size:21px}
 .stat-item span{font-size:12px}
 .article-card{padding:18px 16px;border-radius:var(--radius-md)}
 .article-hero{padding:34px 0 36px}
 .meta-row{font-size:12.3px}
 .timeline{padding-left:18px}
 .timeline-item::before{left:-25px}
}

/* roulang page: category1 */
:root{
 --ink-950:#080b1a;
 --ink-900:#0d1126;
 --ink-850:#111533;
 --ink-800:#1a1f3d;
 --ink-700:#242b55;
 --line:rgba(255,255,255,.10);
 --line-soft:rgba(255,255,255,.06);
 --text:#eef1ff;
 --text-dim:#a6adcb;
 --gold:#ffb400;
 --gold-2:#ffd66b;
 --cyan:#38e8d0;
 --paper:#f4f5fb;
 --paper-line:#e4e7f2;
 --ink-text:#171a2c;
 --ink-text-dim:#5b6280;
 --radius-xl:24px;
 --radius-lg:20px;
 --radius-md:12px;
 --radius-sm:8px;
 --shadow-card:0 12px 32px rgba(11,15,38,.09);
 --shadow-soft:0 3px 12px rgba(11,15,38,.06);
 --shadow-dark:0 20px 44px rgba(0,0,0,.38);
 --maxw:1180px;
 --gap:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 background:var(--ink-950);
 color:var(--text);
 line-height:1.75;
 font-size:16px;
 -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:hover{color:inherit}
img{max-width:100%;display:block;border:0}
button{font:inherit;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
[id]{scroll-margin-top:96px}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}

/* ============ HEADER / NAV ============ */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,11,26,.88);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 box-shadow:0 8px 26px rgba(0,0,0,.35);
}
.nav-shell{position:relative;display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 background:linear-gradient(135deg,var(--gold) 0%,#ff8a00 100%);
 display:grid;place-items:center;color:#1d1400;font-weight:900;font-size:15px;
 box-shadow:0 8px 20px rgba(255,180,0,.36);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.4px;line-height:1.2}
.brand-text small{display:block;font-size:10.5px;font-weight:500;letter-spacing:2.4px;color:var(--text-dim);text-transform:uppercase;margin-top:3px}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.site-nav a{
 position:relative;padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--text-dim);
 transition:color .22s ease,background .22s ease,box-shadow .22s ease,transform .22s ease;
 white-space:nowrap;
}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.07);transform:translateY(-1px)}
.site-nav a.is-active{
 color:#141000;font-weight:800;
 background:linear-gradient(135deg,var(--gold) 0%,var(--gold-2) 100%);
 box-shadow:0 0 0 1px rgba(255,214,107,.5),0 8px 24px rgba(255,180,0,.4);
}
.nav-cta{
 display:inline-flex;align-items:center;gap:7px;flex-shrink:0;
 padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;
 color:var(--cyan);border:1px solid rgba(56,232,208,.45);
 background:rgba(56,232,208,.08);
 transition:.24s ease;
}
.nav-cta:hover{background:rgba(56,232,208,.18);box-shadow:0 0 22px rgba(56,232,208,.35);color:#eafffb;transform:translateY(-1px)}
.nav-toggle{
 display:none;margin-left:auto;background:rgba(255,255,255,.05);
 border:1px solid var(--line);color:var(--text);
 border-radius:10px;padding:9px 14px;font-size:14px;font-weight:600;
}
.nav-toggle:focus-visible,.site-nav a:focus-visible,.nav-cta:focus-visible,.btn:focus-visible{
 outline:2px solid var(--cyan);outline-offset:3px;
}

/* ============ HERO（分类页） ============ */
.cat-hero{position:relative;overflow:hidden;padding:72px 0 66px;isolation:isolate}
.cat-hero__bg{
 position:absolute;inset:0;z-index:-2;
 background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 opacity:.30;filter:saturate(1.15);
}
.cat-hero__veil{
 position:absolute;inset:0;z-index:-1;
 background:
 radial-gradient(940px 440px at 88% -12%,rgba(255,180,0,.22),transparent 62%),
 radial-gradient(780px 400px at 0% 28%,rgba(56,232,208,.15),transparent 66%),
 linear-gradient(162deg,rgba(9,12,30,.93) 0%,rgba(17,21,51,.95) 58%,rgba(8,11,26,.98) 100%);
}
.cat-hero__grid{display:grid;grid-template-columns:1.16fr .84fr;gap:46px;align-items:center}
.hero-sticker{
 display:inline-flex;align-items:center;gap:10px;
 padding:7px 16px 7px 8px;border-radius:999px;
 background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.4);
 font-size:13px;font-weight:700;color:var(--gold-2);margin-bottom:22px;
}
.hero-sticker b{
 display:inline-block;padding:3px 10px;border-radius:999px;
 background:linear-gradient(135deg,var(--gold),#ff8a00);color:#1d1400;font-size:12px;font-weight:900;
 letter-spacing:.5px;
}
.cat-hero h1{
 font-size:clamp(28px,3.9vw,46px);
 line-height:1.28;font-weight:900;letter-spacing:.5px;margin-bottom:18px;
 background:linear-gradient(180deg,#ffffff 32%,#cfd6ff 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero h1 em{
 font-style:normal;
 background:linear-gradient(120deg,var(--gold) 0%,#ff8a00 60%,var(--gold-2) 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero__sub{font-size:clamp(16px,1.8vw,20px);font-weight:700;color:#ffffff;margin-bottom:14px}
.cat-hero__desc{font-size:15.5px;color:var(--text-dim);max-width:660px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:14px 28px;border-radius:13px;font-weight:800;font-size:15px;
 border:1px solid transparent;line-height:1;transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
}
.btn-gold{
 background:linear-gradient(135deg,#ffc83c 0%,#ff9a00 100%);color:#1d1400;
 box-shadow:0 12px 28px rgba(255,154,0,.32);
}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(255,154,0,.46);color:#1d1400}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2);color:var(--text)}
.btn-ghost:hover{background:rgba(56,232,208,.14);border-color:rgba(56,232,208,.7);color:#ffffff;transform:translateY(-3px)}
.btn:active{transform:translateY(0) scale(.99)}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
 color:var(--text-dim);background:rgba(255,255,255,.05);border:1px solid var(--line-soft);
}
.tag--cyan{color:#bff9f1;border-color:rgba(56,232,208,.35);background:rgba(56,232,208,.09)}
.tag--gold{color:#ffe0a3;border-color:rgba(255,180,0,.35);background:rgba(255,180,0,.10)}

/* hero 数据面板 */
.hero-panel{
 background:linear-gradient(180deg,rgba(26,31,61,.94),rgba(13,17,38,.96));
 border:1px solid var(--line);border-radius:var(--radius-xl);
 padding:26px 24px 22px;box-shadow:var(--shadow-dark);
}
.hero-panel__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.hero-panel__head h2{font-size:14px;letter-spacing:1.6px;font-weight:800;color:var(--cyan);text-transform:uppercase}
.hero-panel__live{font-size:11.5px;font-weight:800;color:#1d1400;background:linear-gradient(135deg,var(--gold),var(--gold-2));padding:3px 10px;border-radius:999px}
.meter-row{margin-bottom:16px}
.meter-row:last-child{margin-bottom:0}
.meter-row__top{display:flex;justify-content:space-between;align-items:baseline;font-size:13.5px;margin-bottom:7px}
.meter-row__top span{color:var(--text-dim)}
.meter-row__top b{color:var(--gold-2);font-size:14.5px;font-weight:900;letter-spacing:.3px}
.meter{height:7px;border-radius:999px;background:rgba(255,255,255,.09);overflow:hidden}
.meter i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--gold));width:0;transition:width 1.1s cubic-bezier(.22,1,.36,1)}
.hero-panel__note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft);font-size:12.5px;color:#7f87a8;line-height:1.7}

/* ============ 通用 SECTION ============ */
.section{padding:74px 0;position:relative;background:var(--ink-950)}
.section--alt{background:linear-gradient(180deg,#0b0f26 0%,#0a0d22 100%)}
.section--panel{background:#0d1128}
.section--tight{padding:52px 0}
.section-head{max-width:780px;margin-bottom:36px}
.section-head--center{margin-inline:auto;text-align:center}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 font-size:12.5px;letter-spacing:2.2px;font-weight:800;color:var(--gold-2);
 text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--gold),var(--cyan))}
.section-head h2{font-size:clamp(23px,3vw,33px);font-weight:900;line-height:1.34;letter-spacing:.3px;margin-bottom:12px}
.section-head h2 em{font-style:normal;color:var(--gold)}
.section-head p{color:var(--text-dim);font-size:15.5px}

/* 网格 */
.grid{display:grid;gap:var(--gap)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}

/* 卡片 */
.card{
 background:linear-gradient(180deg,rgba(26,31,61,.86),rgba(15,19,42,.92));
 border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;
 transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
 height:100%;
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.38);box-shadow:0 18px 40px rgba(0,0,0,.42)}
.card h3{font-size:18px;font-weight:800;margin-bottom:10px;letter-spacing:.2px}
.card p{font-size:14.5px;color:var(--text-dim)}
.card-num{
 display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;
 font-weight:900;font-size:15px;color:#1d1400;
 background:linear-gradient(135deg,var(--gold),#ff8a00);
 box-shadow:0 8px 20px rgba(255,180,0,.28);
 margin-bottom:16px;
}
.card--dim{background:linear-gradient(180deg,rgba(20,25,50,.7),rgba(13,17,38,.8))}
.card--warn{border-color:rgba(255,138,0,.32);background:linear-gradient(180deg,rgba(48,30,12,.55),rgba(20,16,30,.9))}

/* 图文分栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
.split__media{
 position:relative;border-radius:var(--radius-xl);overflow:hidden;
 border:1px solid var(--line);box-shadow:var(--shadow-dark);
}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .6s ease}
.split__media:hover img{transform:scale(1.04)}
.split__media::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(8,11,26,0) 40%,rgba(8,11,26,.72) 100%);
}
.split__badge{
 position:absolute;left:18px;bottom:18px;z-index:2;
 padding:8px 15px;border-radius:999px;font-size:12.5px;font-weight:800;
 color:#1d1400;background:linear-gradient(135deg,var(--gold),var(--gold-2));
 box-shadow:0 10px 24px rgba(0,0,0,.4);
}
.flow-list li{
 display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line-soft);
}
.flow-list li:last-child{border-bottom:0;padding-bottom:0}
.flow-list b{
 flex-shrink:0;width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
 font-size:13.5px;font-weight:900;color:var(--cyan);
 background:rgba(56,232,208,.10);border:1px solid rgba(56,232,208,.32);
}
.flow-list h3{font-size:16.5px;font-weight:800;margin-bottom:6px}
.flow-list p{font-size:14.5px;color:var(--text-dim)}

/* 步骤卡 */
.step{
 position:relative;padding:28px 24px 24px;border-radius:var(--radius-lg);
 background:linear-gradient(180deg,rgba(26,31,61,.9),rgba(14,18,40,.94));
 border:1px solid var(--line);height:100%;
 transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.step:hover{transform:translateY(-5px);border-color:rgba(56,232,208,.42);box-shadow:0 18px 42px rgba(0,0,0,.45)}
.step__idx{
 position:absolute;top:-14px;left:24px;
 padding:4px 13px;border-radius:999px;font-size:12px;font-weight:900;letter-spacing:1px;
 color:#1d1400;background:linear-gradient(135deg,var(--gold),var(--gold-2));
}
.step h3{font-size:17px;font-weight:800;margin:10px 0 8px}
.step p{font-size:14.5px;color:var(--text-dim)}

/* 数据条 */
.stats{
 display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
 padding:30px;border-radius:var(--radius-xl);
 background:linear-gradient(120deg,rgba(255,180,0,.11),rgba(56,232,208,.08));
 border:1px solid var(--line);box-shadow:var(--shadow-dark);
}
.stat{text-align:center}
.stat__num{
 display:block;font-size:clamp(24px,3.1vw,37px);font-weight:900;letter-spacing:.5px;
 background:linear-gradient(120deg,var(--gold-2),var(--gold));
 -webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2;
}
.stat__label{display:block;margin-top:6px;font-size:13.5px;color:var(--text-dim);font-weight:600}

/* 案例卡 */
.case{
 border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
 background:linear-gradient(180deg,rgba(23,28,56,.9),rgba(13,17,38,.95));
 transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;height:100%;
}
.case:hover{transform:translateY(-5px);border-color:rgba(255,180,0,.4);box-shadow:0 20px 44px rgba(0,0,0,.45)}
.case__media{position:relative;overflow:hidden}
.case__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .6s ease}
.case:hover .case__media img{transform:scale(1.06)}
.case__badge{
 position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;
 font-size:12px;font-weight:800;color:#1d1400;
 background:linear-gradient(135deg,var(--gold),var(--gold-2));
}
.case__body{padding:20px 22px 24px}
.case__body h3{font-size:16.5px;font-weight:800;margin-bottom:9px}
.case__body p{font-size:14.5px;color:var(--text-dim);margin-bottom:14px}
.case__meta{display:flex;flex-wrap:wrap;gap:8px}
.case__meta span{
 font-size:12px;padding:4px 11px;border-radius:999px;color:#a9b1d0;
 background:rgba(255,255,255,.05);border:1px solid var(--line-soft);
}

/* 人群列表 */
.fit-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.fit-item{
 display:flex;gap:14px;align-items:flex-start;padding:20px 22px;border-radius:var(--radius-md);
 background:rgba(255,255,255,.035);border:1px solid var(--line-soft);
 transition:background .24s ease,border-color .24s ease,transform .24s ease;
}
.fit-item:hover{background:rgba(56,232,208,.07);border-color:rgba(56,232,208,.3);transform:translateY(-3px)}
.fit-item i{
 flex-shrink:0;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
 font-style:normal;font-size:13px;font-weight:900;color:#08221f;
 background:linear-gradient(135deg,var(--cyan),#7ef5e6);
}
.fit-item p{font-size:14.5px;color:var(--text);font-weight:600}
.fit-item p small{display:block;margin-top:4px;font-size:13px;font-weight:400;color:var(--text-dim)}
.fit-item--no i{background:linear-gradient(135deg,#ff8a00,#ffb400);color:#1d1400}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px;margin-inline:auto}
.faq{
 border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;
 background:rgba(255,255,255,.032);transition:border-color .24s ease,background .24s ease;
}
.faq:hover{border-color:rgba(255,180,0,.32)}
.faq summary{
 list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;font-size:16px;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 transition:color .22s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
 content:"+";flex-shrink:0;font-size:21px;font-weight:900;color:var(--gold);
 transition:transform .24s ease;line-height:1;
}
.faq[open] summary{color:var(--gold-2)}
.faq[open] summary::after{transform:rotate(45deg)}
.faq p{padding:0 22px 20px;font-size:14.5px;color:var(--text-dim)}

/* CTA 条 */
.cta-band{
 position:relative;overflow:hidden;border-radius:var(--radius-xl);
 padding:44px 42px;border:1px solid rgba(255,180,0,.3);
 background:
 radial-gradient(620px 280px at 88% 0%,rgba(255,180,0,.22),transparent 64%),
 radial-gradient(560px 260px at 0% 100%,rgba(56,232,208,.16),transparent 66%),
 linear-gradient(150deg,rgba(26,31,61,.96),rgba(11,15,36,.98));
 box-shadow:var(--shadow-dark);
 display:grid;grid-template-columns:1.35fr .65fr;gap:30px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);font-weight:900;line-height:1.36;margin-bottom:10px}
.cta-band p{color:var(--text-dim);font-size:15px}
.cta-band__action{display:flex;justify-content:flex-end}

/* ============ FOOTER ============ */
.site-footer{background:#05070f;border-top:1px solid var(--line);padding:56px 0 26px}
.footer-grid{
 display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;
 padding-bottom:34px;border-bottom:1px solid var(--line-soft);
}
.footer-brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:16px;margin-bottom:14px}
.footer-desc{color:var(--text-dim);font-size:14px;max-width:430px}
.footer-col h4{font-size:14px;font-weight:800;letter-spacing:1px;margin-bottom:14px;color:#ffffff}
.footer-col a{display:block;color:var(--text-dim);font-size:14px;padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--gold);transform:translateX(3px)}
.footer-bottom{
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 padding-top:22px;color:#7b82a3;font-size:13px;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .cat-hero__grid{grid-template-columns:1fr;gap:34px}
 .cat-hero__desc{max-width:100%}
 .split{grid-template-columns:1fr;gap:30px}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
 .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
 .cta-band{grid-template-columns:1fr;padding:36px 30px}
 .cta-band__action{justify-content:flex-start}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
 .nav-shell{height:66px}
 .nav-toggle{display:inline-flex}
 .site-nav{
  position:absolute;top:66px;left:0;right:0;margin-left:0;
  flex-direction:column;align-items:stretch;gap:4px;
  padding:14px 20px 18px;background:rgba(8,11,26,.98);
  border-bottom:1px solid var(--line);box-shadow:0 18px 36px rgba(0,0,0,.5);
  display:none;
 }
 .site-nav.is-open{display:flex}
 .site-nav a{padding:12px 14px;border-radius:10px;font-size:15px}
 .nav-cta{display:none}
}
@media (max-width:768px){
 .section{padding:54px 0}
 .cat-hero{padding:54px 0 48px}
 .grid-3,.grid-2{grid-template-columns:1fr}
 .fit-list{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr}
 .hero-panel{padding:22px 20px 18px}
}
@media (max-width:520px){
 .grid-4{grid-template-columns:1fr}
 .stats{grid-template-columns:1fr;padding:24px 20px}
 .hero-actions{flex-direction:column;align-items:stretch}
 .btn{width:100%}
 .card,.step{padding:22px}
 .cta-band{padding:28px 22px}
 .section-head h2{font-size:23px}
}

/* roulang page: category2 */
:root{
 --ink-950:#080b1a;
 --ink-900:#0d1126;
 --ink-850:#111533;
 --ink-800:#1a1f3d;
 --ink-700:#242b55;
 --line:rgba(255,255,255,.10);
 --line-soft:rgba(255,255,255,.06);
 --text:#eef1ff;
 --text-dim:#a6adcb;
 --gold:#ffb400;
 --gold-2:#ffd66b;
 --cyan:#38e8d0;
 --paper:#f4f5fb;
 --paper-line:#e4e7f2;
 --ink-text:#171a2c;
 --ink-text-dim:#5b6280;
 --radius-xl:24px;
 --radius-lg:20px;
 --radius-md:12px;
 --radius-sm:8px;
 --shadow-card:0 12px 32px rgba(11,15,38,.09);
 --shadow-soft:0 3px 12px rgba(11,15,38,.06);
 --shadow-dark:0 20px 44px rgba(0,0,0,.38);
 --maxw:1180px;
 --gap:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 background:var(--ink-950);color:var(--text);line-height:1.75;font-size:16px;
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-weight:800;line-height:1.3;margin:0 0 .55em;letter-spacing:.2px}
p{margin:0 0 1em}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
img{max-width:100%;display:block;border:0}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(255,180,0,.35);color:#fff}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}
/* ============ HEADER / NAV ============ */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,11,26,.88);
 backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 box-shadow:0 8px 26px rgba(0,0,0,.35);
}
.nav-shell{position:relative;display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 background:linear-gradient(135deg,var(--gold) 0%,#ff8a00 100%);
 display:grid;place-items:center;color:#1d1400;font-weight:900;font-size:15px;
 box-shadow:0 8px 20px rgba(255,180,0,.36);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.4px;line-height:1.2}
.brand-text small{display:block;font-size:10.5px;font-weight:500;letter-spacing:2.4px;color:var(--text-dim);margin-top:3px}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.site-nav a{
 position:relative;padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--text-dim);
 transition:color .22s ease,background .22s ease,box-shadow .22s ease,transform .22s ease;white-space:nowrap;
}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.07);transform:translateY(-1px)}
.site-nav a.is-active{
 color:#141000;font-weight:800;
 background:linear-gradient(135deg,var(--gold) 0%,var(--gold-2) 100%);
 box-shadow:0 0 0 1px rgba(255,214,107,.5),0 8px 24px rgba(255,180,0,.4);
}
.nav-cta{
 display:inline-flex;align-items:center;gap:7px;flex-shrink:0;
 padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;
 color:var(--cyan);border:1px solid rgba(56,232,208,.45);
 background:rgba(56,232,208,.08);transition:.24s ease;
}
.nav-cta:hover{background:rgba(56,232,208,.18);box-shadow:0 0 22px rgba(56,232,208,.35);color:#eafffb;transform:translateY(-1px)}
.nav-toggle{
 display:none;margin-left:auto;background:rgba(255,255,255,.05);
 border:1px solid var(--line);color:var(--text);
 border-radius:10px;padding:9px 14px;font-size:14px;font-weight:600;
}
.nav-toggle:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 62px;isolation:isolate}
.hero__bg{
 position:absolute;inset:0;z-index:-2;
 background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 opacity:.28;filter:saturate(1.1);
}
.hero__veil{
 position:absolute;inset:0;z-index:-1;
 background:
 radial-gradient(1000px 460px at 84% -14%,rgba(255,180,0,.22),transparent 62%),
 radial-gradient(880px 420px at 0% 26%,rgba(56,232,208,.15),transparent 64%),
 linear-gradient(165deg,rgba(9,12,30,.93) 0%,rgba(17,21,51,.94) 58%,rgba(8,11,26,.98) 100%);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);gap:44px;align-items:center}
.hero-sticker{
 display:inline-flex;align-items:center;gap:10px;
 padding:7px 16px 7px 8px;border-radius:999px;
 background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.4);
 font-size:13px;font-weight:700;color:var(--gold-2);margin-bottom:20px;
}
.hero-sticker b{
 display:inline-block;padding:3px 10px;border-radius:999px;
 background:linear-gradient(135deg,var(--gold),#ff8a00);color:#1d1400;font-size:12px;font-weight:900;letter-spacing:.5px;
}
.hero h1{
 font-size:clamp(28px,3.9vw,46px);line-height:1.26;font-weight:900;letter-spacing:.4px;margin-bottom:16px;
 background:linear-gradient(180deg,#ffffff 32%,#cfd6ff 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero h1 em{
 font-style:normal;
 background:linear-gradient(120deg,var(--gold) 0%,#ff8a00 60%,var(--gold-2) 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:clamp(16px,1.7vw,19px);font-weight:700;color:#ffffff;margin-bottom:14px}
.hero-desc{font-size:15px;color:var(--text-dim);max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:14px 28px;border-radius:13px;font-weight:800;font-size:15px;
 border:1px solid transparent;line-height:1;transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
}
.btn-gold{background:linear-gradient(135deg,#ffc83c 0%,#ff9a00 100%);color:#1d1400;box-shadow:0 12px 28px rgba(255,154,0,.32)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(255,154,0,.46);color:#1d1400}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2);color:var(--text)}
.btn-ghost:hover{background:rgba(56,232,208,.14);border-color:rgba(56,232,208,.7);color:#fff;transform:translateY(-3px)}
.btn:active{transform:translateY(0) scale(.99)}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.hero-mini{display:flex;flex-wrap:wrap;gap:10px}
.hero-mini span{
 font-size:12.5px;font-weight:700;color:var(--text-dim);
 padding:6px 13px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);
}
/* 直播预告卡 */
.live-card{
 position:relative;border-radius:var(--radius-xl);overflow:hidden;
 border:1px solid rgba(255,180,0,.26);
 background:linear-gradient(180deg,rgba(26,31,61,.96),rgba(11,15,38,.98));
 box-shadow:var(--shadow-dark);
}
.live-card__cover{position:relative;aspect-ratio:16/11;overflow:hidden}
.live-card__cover img{width:100%;height:100%;object-fit:cover}
.live-card__cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,11,26,.15) 0%,rgba(8,11,26,.92) 100%)}
.live-badge{
 position:absolute;top:14px;left:14px;z-index:2;display:inline-flex;align-items:center;gap:7px;
 padding:6px 13px;border-radius:999px;font-size:12px;font-weight:900;letter-spacing:.6px;
 background:linear-gradient(135deg,#ff4d6a,#ff8a00);color:#fff;box-shadow:0 8px 20px rgba(255,77,106,.4);
}
.live-badge i{width:7px;height:7px;border-radius:50%;background:#fff;display:inline-block;animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.7)}}
.live-card__body{padding:22px 22px 24px}
.live-card__body h3{font-size:17px;margin-bottom:6px}
.live-card__body .live-meta{font-size:13px;color:var(--text-dim);margin-bottom:16px}
.countdown{display:flex;gap:10px;margin-bottom:18px}
.countdown div{
 flex:1;text-align:center;padding:10px 4px;border-radius:var(--radius-md);
 background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.countdown b{display:block;font-size:22px;font-weight:900;color:var(--gold-2);line-height:1.2;font-variant-numeric:tabular-nums}
.countdown small{font-size:11px;color:var(--text-dim);letter-spacing:1px}
.live-sub{width:100%;border-radius:12px;padding:13px 18px;font-weight:800;font-size:14.5px;border:1px solid rgba(56,232,208,.5);background:rgba(56,232,208,.1);color:var(--cyan);transition:.24s ease}
.live-sub:hover{background:rgba(56,232,208,.2);color:#eafffb}
.live-sub.is-on{background:linear-gradient(135deg,var(--gold),#ff8a00);border-color:transparent;color:#1d1400;box-shadow:0 10px 26px rgba(255,180,0,.36)}
/* ============ SECTION ============ */
.section{padding:76px 0;position:relative;background:var(--ink-950)}
.section--alt{background:linear-gradient(180deg,#0b0f26 0%,#0a0d22 100%)}
.section--panel{background:#0d1128}
.section--light{background:var(--paper);color:var(--ink-text)}
.section--tight{padding:56px 0}
.section-head{max-width:780px;margin-bottom:38px}
.section-head--center{margin-inline:auto;text-align:center}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:800;letter-spacing:2px;text-transform:uppercase;
 color:var(--gold-2);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--gold),transparent)}
.section--light .eyebrow{color:#c8871a}
.section-title{font-size:clamp(23px,2.7vw,33px);line-height:1.32;margin-bottom:14px}
.section-desc{color:var(--text-dim);font-size:15.5px;max-width:760px;margin:0}
.section--light .section-desc{color:var(--ink-text-dim)}
/* ============ GRID / CARD ============ */
.grid{display:grid;gap:var(--gap)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{
 background:rgba(17,21,51,.86);border:1px solid var(--line);
 border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-soft);
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-dark);border-color:rgba(255,180,0,.38)}
.card h3{font-size:17.5px;margin-bottom:10px}
.card p{font-size:14.5px;color:var(--text-dim);margin:0}
.section--light .card{background:#fff;border-color:var(--paper-line);color:var(--ink-text);box-shadow:var(--shadow-card)}
.section--light .card p{color:var(--ink-text-dim)}
.section--light .card:hover{border-color:rgba(255,180,0,.55);box-shadow:0 18px 40px rgba(11,15,38,.14)}
.badge{
 display:inline-block;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.6px;
 background:rgba(56,232,208,.12);color:var(--cyan);border:1px solid rgba(56,232,208,.32);margin-bottom:12px;
}
.badge--gold{background:rgba(255,180,0,.14);color:var(--gold-2);border-color:rgba(255,180,0,.4)}
.section--light .badge{background:rgba(255,180,0,.14);color:#a86b00;border-color:rgba(255,180,0,.4)}
.pain-index{
 font-size:34px;font-weight:900;line-height:1;color:rgba(255,255,255,.14);margin-bottom:10px;letter-spacing:-1px;
}
.section--light .pain-index{color:rgba(23,26,44,.12)}
/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:42px;align-items:center}
.split--reverse .split__media{order:2}
.split__media{position:relative;border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-dark)}
.split__media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split__media figcaption{
 position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:12.5px;color:#dfe4ff;
 background:linear-gradient(180deg,transparent,rgba(8,11,26,.92));
}
.phase-list{display:grid;gap:16px;margin-top:22px}
.phase-list li{
 display:grid;grid-template-columns:44px minmax(0,1fr);gap:14px;align-items:start;
 padding:16px 18px;border-radius:var(--radius-md);
 background:rgba(255,255,255,.04);border:1px solid var(--line-soft);
 transition:background .24s ease,border-color .24s ease,transform .24s ease;
}
.phase-list li:hover{background:rgba(255,180,0,.08);border-color:rgba(255,180,0,.32);transform:translateX(3px)}
.phase-list b{
 width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
 background:linear-gradient(135deg,var(--gold),#ff8a00);color:#1d1400;font-size:15px;font-weight:900;
}
.phase-list strong{display:block;font-size:15.5px;margin-bottom:3px}
.phase-list span{font-size:14px;color:var(--text-dim);line-height:1.7}
/* ============ 步骤时间线 ============ */
.timeline{position:relative;display:grid;gap:18px;margin-top:8px}
.timeline::before{
 content:"";position:absolute;left:23px;top:10px;bottom:10px;width:2px;
 background:linear-gradient(180deg,rgba(255,180,0,.65),rgba(56,232,208,.35),transparent);
}
.step{position:relative;display:grid;grid-template-columns:50px minmax(0,1fr);gap:20px;padding:22px 24px;border-radius:var(--radius-lg);
 background:rgba(17,21,51,.9);border:1px solid var(--line);box-shadow:var(--shadow-soft);
 transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(56,232,208,.38);box-shadow:var(--shadow-dark)}
.step__num{
 width:50px;height:50px;border-radius:14px;display:grid;place-items:center;font-weight:900;font-size:17px;
 background:rgba(56,232,208,.12);border:1px solid rgba(56,232,208,.4);color:var(--cyan);
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--text-dim);margin:0}
.step .tagline{display:inline-block;margin-top:10px;font-size:12.5px;font-weight:700;color:var(--gold-2)}
/* ============ 数据指标 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat{
 padding:28px 22px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--paper-line);
 box-shadow:var(--shadow-card);position:relative;overflow:hidden;
 transition:transform .25s ease,box-shadow .25s ease;
}
.stat::after{content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;border-radius:50%;background:radial-gradient(circle,rgba(255,180,0,.22),transparent 70%)}
.stat:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(11,15,38,.16)}
.stat b{display:block;font-size:30px;font-weight:900;line-height:1.1;color:#b87400;letter-spacing:-.5px}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--ink-text-dim);font-weight:600}
/* ============ 案例 ============ */
.case-card{
 display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:0;
 border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);background:rgba(17,21,51,.9);box-shadow:var(--shadow-dark);
}
.case-card__media{position:relative;min-height:280px}
.case-card__media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.case-card__body{padding:32px}
.case-card__body h3{font-size:21px;margin-bottom:14px}
.case-card__body p{font-size:14.5px;color:var(--text-dim)}
.case-points{display:grid;gap:10px;margin-top:18px}
.case-points li{display:flex;gap:10px;font-size:14px;color:#d7dcff}
.case-points li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:3px;background:linear-gradient(135deg,var(--gold),#ff8a00)}
/* ============ 评价 ============ */
.quote{
 position:relative;padding:26px;border-radius:var(--radius-lg);
 background:rgba(17,21,51,.86);border:1px solid var(--line);box-shadow:var(--shadow-soft);
 transition:transform .25s ease,border-color .25s ease;
}
.quote:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.36)}
.quote p{font-size:14.5px;color:#d9deff;margin-bottom:18px}
.quote__who{display:flex;align-items:center;gap:12px}
.quote__avatar{
 width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-weight:900;font-size:14px;
 background:linear-gradient(135deg,var(--ink-700),var(--ink-800));border:1px solid var(--line);color:var(--gold-2);
}
.quote__who strong{display:block;font-size:14px}
.quote__who small{font-size:12.5px;color:var(--text-dim)}
/* ============ 人群 ============ */
.audience{
 padding:24px;border-radius:var(--radius-lg);background:rgba(255,255,255,.04);
 border:1px solid var(--line-soft);transition:.25s ease;
}
.audience:hover{background:rgba(56,232,208,.07);border-color:rgba(56,232,208,.32);transform:translateY(-3px)}
.audience h3{font-size:16px;margin-bottom:8px;color:#fff}
.audience p{font-size:14px;color:var(--text-dim);margin:0}
.audience .dot{width:9px;height:9px;border-radius:50%;background:var(--cyan);display:inline-block;margin-right:8px;box-shadow:0 0 12px rgba(56,232,208,.8)}
/* ============ 列表 ============ */
.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.news-item{
 display:block;padding:22px 24px;border-radius:var(--radius-lg);
 background:rgba(17,21,51,.86);border:1px solid var(--line);
 transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.news-item:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.4);box-shadow:var(--shadow-dark);color:inherit}
.news-item h3{font-size:16px;margin:0 0 8px;line-height:1.45}
.news-item p{font-size:13.8px;color:var(--text-dim);margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item .news-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:#8f97b8}
.news-item .news-tag{
 padding:3px 10px;border-radius:999px;font-weight:800;
 background:rgba(255,180,0,.13);color:var(--gold-2);border:1px solid rgba(255,180,0,.3);
}
.news-empty{
 padding:34px;border-radius:var(--radius-lg);text-align:center;
 border:1px dashed rgba(255,255,255,.2);color:var(--text-dim);font-size:14.5px;
}
/* ============ FAQ ============ */
.faq{display:grid;gap:14px;max-width:900px;margin-inline:auto}
.faq-item{
 border-radius:var(--radius-md);background:rgba(17,21,51,.86);border:1px solid var(--line);
 padding:4px 22px;transition:border-color .24s ease,background .24s ease;
}
.faq-item[open]{border-color:rgba(255,180,0,.42);background:rgba(255,180,0,.06)}
.faq-item summary{
 cursor:pointer;list-style:none;padding:16px 0;font-weight:800;font-size:15.5px;color:#fff;
 display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--gold-2);line-height:1;transition:transform .24s ease;
}
.faq-item[open] summary::after{content:"–";transform:rotate(180deg)}
.faq-item summary:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.faq-item p{font-size:14.5px;color:var(--text-dim);padding:0 0 18px;margin:0}
/* ============ CTA ============ */
.cta-band{
 position:relative;overflow:hidden;border-radius:var(--radius-xl);
 padding:52px 44px;text-align:center;
 background:
 radial-gradient(700px 300px at 50% -30%,rgba(255,180,0,.28),transparent 66%),
 linear-gradient(140deg,#151a3c 0%,#0b0f26 100%);
 border:1px solid rgba(255,180,0,.3);box-shadow:var(--shadow-dark);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-band p{color:var(--text-dim);max-width:660px;margin:0 auto 26px;font-size:15px}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px}
/* ============ FOOTER ============ */
.site-footer{background:#050714;border-top:1px solid var(--line);padding:56px 0 26px;color:var(--text-dim)}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(0,1fr));gap:38px;padding-bottom:34px;border-bottom:1px solid var(--line-soft)}
.footer-brand{display:flex;align-items:center;gap:11px;font-size:16px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.8;max-width:440px;margin:0}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.6px}
.footer-col a{display:block;font-size:13.8px;color:var(--text-dim);padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--gold-2);transform:translateX(3px)}
.footer-bottom{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:22px;font-size:12.8px;color:#7a82a4}
/* ============ 响应式 ============ */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:34px}
 .split{grid-template-columns:1fr;gap:28px}
 .split--reverse .split__media{order:0}
 .grid-3,.grid-4,.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .case-card{grid-template-columns:1fr}
 .case-card__media{min-height:220px}
 .footer-grid{grid-template-columns:1fr 1fr}
 .footer-grid>div:first-child{grid-column:1/-1}
}
@media (max-width:768px){
 .nav-shell{height:auto;flex-wrap:wrap;padding-block:14px;gap:12px}
 .nav-toggle{display:inline-flex}
 .nav-cta{display:none}
 .site-nav{
  display:none;width:100%;flex-direction:column;align-items:stretch;gap:6px;
  padding:12px 0 4px;margin-left:0;border-top:1px solid var(--line-soft);
 }
 .site-nav.is-open{display:flex}
 .site-nav a{padding:11px 14px;border-radius:12px;font-size:15px}
 .hero{padding:52px 0 46px}
 .section{padding:56px 0}
 .section--tight{padding:44px 0}
 .news-list{grid-template-columns:1fr}
 .cta-band{padding:40px 22px}
 .brand-text{font-size:15px}
}
@media (max-width:520px){
 .grid-2,.grid-3,.grid-4,.stat-grid{grid-template-columns:1fr}
 .hero-actions .btn{width:100%}
 .countdown b{font-size:19px}
 .card{padding:20px}
 .step{grid-template-columns:1fr;padding:20px}
 .timeline::before{display:none}
 .stat b{font-size:26px}
 .footer-grid{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category3 */
:root{
 --ink-950:#080b1a;
 --ink-900:#0d1126;
 --ink-850:#111533;
 --ink-800:#1a1f3d;
 --ink-700:#242b55;
 --line:rgba(255,255,255,.10);
 --line-soft:rgba(255,255,255,.06);
 --text:#eef1ff;
 --text-dim:#a6adcb;
 --gold:#ffb400;
 --gold-2:#ffd66b;
 --cyan:#38e8d0;
 --paper:#f4f5fb;
 --paper-line:#e4e7f2;
 --ink-text:#171a2c;
 --ink-text-dim:#5b6280;
 --radius-xl:24px;
 --radius-lg:20px;
 --radius-md:12px;
 --radius-sm:8px;
 --shadow-card:0 12px 32px rgba(11,15,38,.09);
 --shadow-soft:0 3px 12px rgba(11,15,38,.06);
 --shadow-dark:0 20px 44px rgba(0,0,0,.38);
 --maxw:1180px;
 --gap:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 background:var(--ink-950);
 color:var(--text);
 line-height:1.75;
 font-size:16px;
 -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
a:hover{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
button{font:inherit;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4,p,ul,li,figure{margin:0;padding:0}
ul{list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
/* ================= HEADER / NAV ================= */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,11,26,.88);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 box-shadow:0 8px 26px rgba(0,0,0,.35);
}
.nav-shell{position:relative;display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 background:linear-gradient(135deg,var(--gold) 0%,#ff8a00 100%);
 display:grid;place-items:center;color:#1d1400;font-weight:900;font-size:15px;
 box-shadow:0 8px 20px rgba(255,180,0,.36);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.4px;line-height:1.2}
.brand-text small{display:block;font-size:10.5px;font-weight:500;letter-spacing:2.4px;color:var(--text-dim);margin-top:3px}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.site-nav a{
 position:relative;padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--text-dim);
 transition:color .22s ease,background .22s ease,box-shadow .22s ease,transform .22s ease;
 white-space:nowrap;
}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.07);transform:translateY(-1px)}
.site-nav a.is-active{
 color:#141000;font-weight:800;
 background:linear-gradient(135deg,var(--gold) 0%,var(--gold-2) 100%);
 box-shadow:0 0 0 1px rgba(255,214,107,.5),0 8px 24px rgba(255,180,0,.4);
}
.nav-cta{
 display:inline-flex;align-items:center;gap:7px;flex-shrink:0;
 padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;
 color:var(--cyan);border:1px solid rgba(56,232,208,.45);
 background:rgba(56,232,208,.08);
 transition:.24s ease;
}
.nav-cta:hover{background:rgba(56,232,208,.18);box-shadow:0 0 22px rgba(56,232,208,.35);color:#eafffb;transform:translateY(-1px)}
.nav-toggle{
 display:none;margin-left:auto;background:rgba(255,255,255,.05);
 border:1px solid var(--line);color:var(--text);
 border-radius:10px;padding:9px 14px;font-size:14px;font-weight:600;
}
/* ================= BUTTONS ================= */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:14px 28px;border-radius:13px;font-weight:800;font-size:15px;
 border:1px solid transparent;line-height:1;transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
}
.btn-gold{background:linear-gradient(135deg,#ffc83c 0%,#ff9a00 100%);color:#1d1400;box-shadow:0 12px 28px rgba(255,154,0,.32)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(255,154,0,.46);color:#1d1400}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2);color:var(--text)}
.btn-ghost:hover{background:rgba(56,232,208,.14);border-color:rgba(56,232,208,.7);color:#fff;transform:translateY(-3px)}
.btn:active{transform:translateY(0) scale(.99)}
.btn-sm{padding:11px 20px;font-size:14px;border-radius:11px}
/* ================= HERO ================= */
.cat-hero{position:relative;overflow:hidden;padding:66px 0 62px;isolation:isolate}
.cat-hero__bg{
 position:absolute;inset:0;z-index:-2;
 background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
 opacity:.28;filter:saturate(1.15);
}
.cat-hero__veil{
 position:absolute;inset:0;z-index:-1;
 background:
 radial-gradient(980px 440px at 84% -10%,rgba(255,180,0,.22),transparent 62%),
 radial-gradient(820px 400px at 0% 30%,rgba(56,232,208,.14),transparent 64%),
 linear-gradient(165deg,rgba(9,12,30,.93) 0%,rgba(17,21,51,.95) 58%,rgba(8,11,26,.98) 100%);
}
.cat-hero__grid{display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:start}
.hero-sticker{
 display:inline-flex;align-items:center;gap:10px;
 padding:7px 16px 7px 8px;border-radius:999px;
 background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.4);
 font-size:13px;font-weight:700;color:var(--gold-2);margin-bottom:20px;
}
.hero-sticker b{
 display:inline-block;padding:3px 10px;border-radius:999px;
 background:linear-gradient(135deg,var(--gold),#ff8a00);color:#1d1400;font-size:12px;font-weight:900;letter-spacing:.5px;
}
.cat-hero h1{
 font-size:clamp(28px,4vw,48px);line-height:1.26;font-weight:900;letter-spacing:.5px;margin-bottom:16px;
 background:linear-gradient(180deg,#ffffff 32%,#cfd6ff 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero h1 em{
 font-style:normal;
 background:linear-gradient(120deg,var(--gold) 0%,#ff8a00 60%,var(--gold-2) 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:clamp(16px,1.8vw,19.5px);font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.2px}
.hero-desc{font-size:15.5px;color:var(--text-dim);margin-bottom:28px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;max-width:600px}
.stat{
 padding:16px 14px;border-radius:var(--radius-md);
 background:rgba(13,17,38,.82);border:1px solid var(--line);
 box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.stat b{display:block;font-size:20px;font-weight:900;color:var(--gold-2);letter-spacing:.6px;line-height:1.2}
.stat span{display:block;font-size:11.5px;color:var(--text-dim);margin-top:5px;letter-spacing:.6px}
/* ================= BRIEF CARD ================= */
.brief-card{
 border-radius:var(--radius-xl);
 background:linear-gradient(180deg,rgba(26,31,61,.96) 0%,rgba(13,17,38,.98) 100%);
 border:1px solid rgba(255,180,0,.26);
 box-shadow:var(--shadow-dark);
 overflow:hidden;
}
.brief-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.brief-cover img{width:100%;height:100%;object-fit:cover;transform:scale(1.02);transition:transform .6s ease}
.brief-card:hover .brief-cover img{transform:scale(1.07)}
.brief-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,11,26,0) 30%,rgba(8,11,26,.86) 100%)}
.brief-cover__tag{
 position:absolute;top:14px;left:14px;z-index:2;
 padding:5px 12px;border-radius:999px;font-size:11.5px;font-weight:800;letter-spacing:1px;
 background:linear-gradient(135deg,var(--gold),#ff8a00);color:#1d1400;
}
.brief-cover__title{position:absolute;left:18px;bottom:14px;z-index:2;font-size:17px;font-weight:900;color:#fff}
.brief-body{padding:20px 22px 24px}
.brief-body h2{font-size:15px;font-weight:800;color:var(--gold-2);letter-spacing:1.4px;margin-bottom:12px}
.brief-toc{display:grid;gap:9px;margin-bottom:18px}
.brief-toc li{display:flex;gap:10px;font-size:13.5px;color:var(--text-dim);line-height:1.6}
.brief-toc li b{color:var(--cyan);font-weight:800;font-size:12.5px;flex-shrink:0;letter-spacing:.6px}
.brief-form{display:grid;gap:10px}
.brief-form label{font-size:12px;color:var(--text-dim);letter-spacing:.6px}
.brief-form input{
 width:100%;padding:11px 14px;border-radius:10px;
 background:rgba(255,255,255,.05);border:1px solid var(--line);
 color:var(--text);font-size:14px;transition:.22s ease;
}
.brief-form input::placeholder{color:#6f7799}
.brief-form input:focus{outline:none;border-color:rgba(56,232,208,.65);background:rgba(56,232,208,.08);box-shadow:0 0 0 3px rgba(56,232,208,.14)}
.brief-form .btn{width:100%;padding:13px 18px}
.form-msg{display:none;font-size:12.5px;color:var(--cyan);margin-top:2px}
.form-msg.is-on{display:block}
/* ================= SECTION 基础 ================= */
.section{padding:76px 0;position:relative;background:var(--ink-950)}
.section--alt{background:linear-gradient(180deg,#0b0f26 0%,#0a0d22 100%)}
.section--panel{background:#0d1128}
.section--light{background:var(--paper);color:var(--ink-text)}
.section--tight{padding:54px 0}
.section-head{max-width:780px;margin-bottom:38px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;
 background:rgba(56,232,208,.10);border:1px solid rgba(56,232,208,.32);
 color:var(--cyan);font-size:12.5px;font-weight:700;letter-spacing:1.2px;margin-bottom:16px;
}
.section-title{font-size:clamp(23px,2.7vw,33px);font-weight:900;line-height:1.32;letter-spacing:.4px;margin-bottom:14px;color:#fff}
.section-lead{font-size:15.5px;color:var(--text-dim);max-width:760px}
.section--light .section-title{color:var(--ink-text)}
.section--light .section-lead{color:var(--ink-text-dim)}
.section--light .eyebrow{color:#9a6b00;background:rgba(255,180,0,.14);border-color:rgba(255,180,0,.38)}
/* ================= SPLIT 痛点 / 解法 ================= */
.split{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.pain-list{display:grid;gap:14px}
.pain-item{
 display:flex;gap:16px;padding:20px 22px;border-radius:var(--radius-md);
 background:rgba(255,255,255,.035);border:1px solid var(--line-soft);
 transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.pain-item:hover{transform:translateX(4px);border-color:rgba(255,180,0,.4);background:rgba(255,180,0,.05)}
.pain-num{
 flex-shrink:0;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
 font-size:13px;font-weight:900;color:var(--gold-2);
 background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.3);
}
.pain-item h3{font-size:16px;font-weight:800;color:#fff;margin-bottom:6px}
.pain-item p{font-size:14px;color:var(--text-dim)}
.solve-card{
 border-radius:var(--radius-xl);padding:30px 28px;
 background:linear-gradient(160deg,rgba(26,31,61,.98) 0%,rgba(13,17,38,.98) 100%);
 border:1px solid rgba(255,180,0,.3);
 box-shadow:var(--shadow-dark);
}
.solve-badge{
 display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
 font-size:11.5px;font-weight:800;letter-spacing:1px;
 background:rgba(56,232,208,.14);color:var(--cyan);border:1px solid rgba(56,232,208,.36);margin-bottom:16px;
}
.solve-card h3{font-size:21px;font-weight:900;color:#fff;margin-bottom:12px}
.solve-card > p{font-size:14.5px;color:var(--text-dim);margin-bottom:20px}
.solve-steps{display:grid;gap:14px}
.solve-step{display:flex;gap:12px;align-items:flex-start;padding-top:14px;border-top:1px dashed rgba(255,255,255,.12)}
.solve-step:first-child{padding-top:0;border-top:0}
.solve-step i{
 flex-shrink:0;width:24px;height:24px;border-radius:8px;display:grid;place-items:center;
 font-style:normal;font-size:12px;font-weight:900;color:#1d1400;
 background:linear-gradient(135deg,var(--gold),var(--gold-2));
}
.solve-step strong{display:block;font-size:14.5px;color:#fff;margin-bottom:2px}
.solve-step span{font-size:13.5px;color:var(--text-dim)}
/* ================= 改动卡片 ================= */
.change-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.change-card{
 border-radius:var(--radius-lg);overflow:hidden;
 background:#121734;border:1px solid var(--line);
 box-shadow:0 10px 26px rgba(0,0,0,.3);
 transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
 display:flex;flex-direction:column;
}
.change-card:hover{transform:translateY(-6px);border-color:rgba(255,180,0,.42);box-shadow:0 22px 46px rgba(0,0,0,.46)}
.change-thumb{aspect-ratio:16/8;overflow:hidden;position:relative}
.change-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.change-card:hover .change-thumb img{transform:scale(1.06)}
.change-tag{
 position:absolute;top:12px;left:12px;padding:4px 11px;border-radius:999px;
 font-size:11.5px;font-weight:800;letter-spacing:1px;
 background:rgba(8,11,26,.82);color:var(--gold-2);border:1px solid rgba(255,180,0,.4);
 backdrop-filter:blur(6px);
}
.change-body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}
.change-body h3{font-size:18px;font-weight:900;color:#fff;margin-bottom:9px;line-height:1.4}
.change-body p{font-size:14px;color:var(--text-dim);margin-bottom:16px}
.change-metric{
 margin-top:auto;display:flex;align-items:baseline;gap:8px;padding-top:14px;
 border-top:1px solid var(--line-soft);
}
.change-metric b{font-size:19px;font-weight:900;color:var(--cyan);letter-spacing:.5px}
.change-metric span{font-size:12.5px;color:var(--text-dim);letter-spacing:.6px}
/* ================= 时间线 ================= */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.timeline::before{
 content:"";position:absolute;top:27px;left:6%;right:6%;height:1px;
 background:linear-gradient(90deg,rgba(255,180,0,.5),rgba(56,232,208,.5));z-index:0;
}
.tl-item{position:relative;z-index:1;text-align:left}
.tl-num{
 width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
 font-size:16px;font-weight:900;color:#1d1400;
 background:linear-gradient(135deg,var(--gold) 0%,#ff8a00 100%);
 box-shadow:0 10px 24px rgba(255,154,0,.32);margin-bottom:18px;
}
.tl-item h3{font-size:16.5px;font-weight:900;color:#fff;margin-bottom:6px}
.tl-item em{display:block;font-style:normal;font-size:12px;font-weight:700;letter-spacing:1px;color:var(--cyan);margin-bottom:9px}
.tl-item p{font-size:13.8px;color:var(--text-dim)}
/* ================= 矩阵表 ================= */
.matrix-scroll{overflow-x:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);background:#fff;border:1px solid var(--paper-line)}
.matrix{width:100%;border-collapse:collapse;min-width:760px;font-size:14.5px}
.matrix thead th{
 background:#10142e;color:#fff;font-weight:800;font-size:13.5px;letter-spacing:.8px;
 padding:15px 18px;text-align:left;white-space:nowrap;
}
.matrix tbody td{padding:15px 18px;border-top:1px solid var(--paper-line);color:var(--ink-text);vertical-align:top}
.matrix tbody tr:nth-child(even){background:#fafbff}
.matrix tbody tr.is-focus{background:rgba(255,180,0,.10)}
.matrix tbody tr.is-focus td:first-child{box-shadow:inset 3px 0 0 var(--gold)}
.matrix td strong{color:#0f1330}
.pill{
 display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.5px;
 background:rgba(56,232,208,.16);color:#0c6f62;border:1px solid rgba(56,232,208,.4);
}
.pill--gold{background:rgba(255,180,0,.18);color:#8a5b00;border-color:rgba(255,180,0,.45)}
.pill--mute{background:#eceefa;color:#5b6280;border-color:#dde1f0}
.matrix-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.note-card{background:#fff;border:1px solid var(--paper-line);border-radius:var(--radius-md);padding:18px 20px;box-shadow:var(--shadow-soft)}
.note-card h4{font-size:14.5px;font-weight:900;color:var(--ink-text);margin-bottom:6px}
.note-card p{font-size:13.5px;color:var(--ink-text-dim)}
/* ================= 案例 ================= */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
 border-radius:var(--radius-lg);overflow:hidden;background:#121734;border:1px solid var(--line);
 transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.case-card:hover{transform:translateY(-6px);border-color:rgba(56,232,208,.4);box-shadow:0 22px 46px rgba(0,0,0,.45)}
.case-thumb{aspect-ratio:16/10;overflow:hidden}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.case-card:hover .case-thumb img{transform:scale(1.06)}
.case-body{padding:20px 22px 24px}
.case-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.case-top span{font-size:12px;letter-spacing:1px;color:var(--text-dim);font-weight:700}
.case-score{font-size:22px;font-weight:900;color:var(--gold-2);letter-spacing:.5px}
.case-body h3{font-size:16.5px;font-weight:900;color:#fff;margin-bottom:8px;line-height:1.45}
.case-body p{font-size:13.8px;color:var(--text-dim)}
/* ================= 适用人群 ================= */
.fit-list{display:grid;gap:0;border-top:1px solid var(--line-soft)}
.fit-item{
 display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:start;
 padding:22px 4px;border-bottom:1px solid var(--line-soft);
 transition:background .25s ease,padding-left .25s ease;
}
.fit-item:hover{background:rgba(255,255,255,.03);padding-left:12px}
.fit-item h3{font-size:16px;font-weight:900;color:var(--gold-2);display:flex;align-items:center;gap:9px}
.fit-item h3::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--cyan);flex-shrink:0}
.fit-item p{font-size:14px;color:var(--text-dim)}
/* ================= 最新发布 ================= */
.post-list{display:grid;gap:12px}
.post-item{
 display:flex;gap:20px;align-items:center;justify-content:space-between;
 padding:20px 24px;border-radius:var(--radius-md);
 background:rgba(255,255,255,.035);border:1px solid var(--line-soft);
 transition:transform .24s ease,border-color .24s ease,background .24s ease;
}
.post-item:hover{transform:translateX(5px);border-color:rgba(255,180,0,.42);background:rgba(255,180,0,.05)}
.post-body h3{font-size:16px;font-weight:800;color:#fff;margin-bottom:5px;line-height:1.5}
.post-body p{font-size:13.5px;color:var(--text-dim);max-width:760px}
.post-meta{flex-shrink:0;font-size:12.5px;color:var(--text-dim);letter-spacing:.6px;white-space:nowrap}
.post-empty{
 padding:26px;border-radius:var(--radius-md);text-align:center;
 font-size:14px;color:var(--text-dim);
 border:1px dashed rgba(255,255,255,.16);background:rgba(255,255,255,.025);
}
/* ================= FAQ ================= */
.faq{display:grid;gap:12px;max-width:900px}
.faq-item{
 border-radius:var(--radius-md);border:1px solid var(--line-soft);
 background:rgba(255,255,255,.035);overflow:hidden;transition:border-color .24s ease,background .24s ease;
}
.faq-item[open]{border-color:rgba(255,180,0,.4);background:rgba(255,180,0,.05)}
.faq-item summary{
 cursor:pointer;list-style:none;padding:18px 22px;
 font-size:15.5px;font-weight:800;color:#fff;display:flex;align-items:center;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";margin-left:auto;color:var(--gold);font-size:20px;font-weight:900;line-height:1;transition:transform .25s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item p{padding:0 22px 20px;font-size:14.2px;color:var(--text-dim)}
/* ================= CTA ================= */
.cta-band{position:relative;overflow:hidden;isolation:isolate;padding:70px 0}
.cta-band__bg{position:absolute;inset:0;z-index:-2;background:url('/assets/images/backpic/back-7.webp') center/cover no-repeat;opacity:.3}
.cta-band__veil{
 position:absolute;inset:0;z-index:-1;
 background:linear-gradient(120deg,rgba(9,12,30,.96) 0%,rgba(17,21,51,.94) 55%,rgba(8,11,26,.97) 100%);
}
.cta-inner{
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
 padding:38px 40px;border-radius:var(--radius-xl);
 background:rgba(13,17,38,.78);border:1px solid rgba(255,180,0,.3);
 box-shadow:var(--shadow-dark);
}
.cta-inner h2{font-size:clamp(21px,2.4vw,28px);font-weight:900;color:#fff;margin-bottom:8px}
.cta-inner p{font-size:14.5px;color:var(--text-dim);max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
/* ================= FOOTER ================= */
.site-footer{background:#060917;border-top:1px solid var(--line);padding:58px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px;padding-bottom:34px}
.footer-brand{display:flex;align-items:center;gap:11px;font-size:16.5px;font-weight:900;color:#fff;margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--text-dim);max-width:430px}
.footer-col h4{font-size:13.5px;font-weight:900;color:var(--gold-2);letter-spacing:1.4px;margin-bottom:14px}
.footer-col a{display:block;font-size:14px;color:var(--text-dim);padding:5px 0;transition:color .22s ease,transform .22s ease}
.footer-col a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
 padding-top:22px;border-top:1px solid var(--line-soft);
 font-size:13px;color:#7c83a3;
}
/* ================= 响应式 ================= */
@media (max-width:1024px){
 .cat-hero__grid{grid-template-columns:1fr;gap:34px}
 .hero-stats{max-width:none}
 .split{grid-template-columns:1fr;gap:26px}
 .change-grid{grid-template-columns:1fr}
 .timeline{grid-template-columns:repeat(2,1fr);gap:26px}
 .timeline::before{display:none}
 .case-grid{grid-template-columns:1fr 1fr}
 .matrix-notes{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr 1fr}
 .fit-item{grid-template-columns:180px 1fr}
}
@media (max-width:768px){
 .nav-shell{height:66px;gap:10px}
 .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
 .site-nav{
  position:absolute;top:66px;left:12px;right:12px;
  display:none;flex-direction:column;align-items:stretch;gap:4px;
  padding:12px;border-radius:16px;
  background:rgba(10,13,32,.98);border:1px solid var(--line);
  box-shadow:0 22px 48px rgba(0,0,0,.55);
 }
 .site-nav.is-open{display:flex}
 .site-nav a{padding:12px 14px;border-radius:10px;font-size:15px}
 .nav-cta{display:none}
 .cat-hero{padding:44px 0 48px}
 .hero-stats{grid-template-columns:1fr 1fr}
 .section{padding:54px 0}
 .case-grid{grid-template-columns:1fr}
 .fit-item{grid-template-columns:1fr;gap:6px}
 .cta-inner{padding:28px 22px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .post-item{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
 .brand-text{font-size:14.5px}
 .brand-text small{display:none}
 .hero-stats{grid-template-columns:1fr 1fr;gap:10px}
 .stat b{font-size:17.5px}
 .btn{width:100%}
 .hero-actions .btn{width:100%}
 .cta-actions{width:100%}
 .cta-actions .btn{width:100%}
 .matrix{min-width:640px;font-size:13.5px}
 .section-title{font-size:22px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}