/* roulang page: index */
:root{
  --brand:#7B3BFF;
  --brand-soft:rgba(123,59,255,.16);
  --cyan:#22E0C8;
  --accent:#FF9A3C;
  --bg:#0D0918;
  --surface:#161028;
  --card:#1B1430;
  --overlay:rgba(22,16,40,.72);
  --text:#F2EEFF;
  --text-2:#B9B0D6;
  --text-3:#8B83A8;
  --white:#FFFFFF;
  --ok:#22E0C8;
  --warn:#FFB020;
  --err:#FF5D73;
  --line:rgba(255,255,255,.08);
  --line-dark:rgba(13,9,24,.08);
  --r-card:18px;
  --r-lg:24px;
  --r-pill:999px;
  --r-badge:8px;
  --r-img:14px;
  --shadow:0 8px 24px rgba(123,59,255,.16);
  --shadow-hover:0 16px 40px rgba(123,59,255,.28);
  --container:1280px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Barlow","Inter","Helvetica Neue",Arial,system-ui,sans-serif;
  --sp-1:96px;
  --sp-2:72px;
  --sp-3:56px;
  --sp-4:40px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,opacity .2s ease;}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px;}
.section{padding:var(--sp-1) 0;}
.section--tight{padding:var(--sp-2) 0;}
.section--light{background:#F6F3FF;color:#160F2E;}
.section--light .sec-sub{color:#4A4363;}
.section-head{max-width:760px;margin-bottom:var(--sp-4);}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.5;color:var(--cyan);
  background:rgba(34,224,200,.10);
  border:1px solid rgba(34,224,200,.28);
  border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}
.section--light .sec-eyebrow{background:rgba(123,59,255,.10);border-color:rgba(123,59,255,.24);color:#5B21C9;}
h2.sec-title{
  font-size:clamp(24px,2.4vw,34px);
  line-height:1.3;font-weight:700;letter-spacing:.02em;
  position:relative;padding-left:18px;margin-bottom:14px;
}
h2.sec-title::before{
  content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:5px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--cyan));
}
.sec-sub{color:var(--text-2);font-size:16px;line-height:1.85;max-width:44em;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand),#9A5CFF);
  color:var(--white);
  box-shadow:0 10px 26px rgba(123,59,255,.34);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 16px 40px rgba(123,59,255,.42);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  background:transparent;color:var(--text);border-color:rgba(255,255,255,.22);
}
.btn-ghost:hover{background:rgba(123,59,255,.14);border-color:rgba(123,59,255,.55);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:var(--brand);color:var(--white);}
.btn-light:hover{background:#8F55FF;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* 标签徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;line-height:1.5;font-weight:600;
}
.badge-cyan{color:var(--cyan);border:1px solid rgba(34,224,200,.42);background:rgba(34,224,200,.10);}
.badge-brand{color:#CDB4FF;border:1px solid rgba(123,59,255,.45);background:rgba(123,59,255,.14);}
.badge-accent{color:#FFC48A;border:1px solid rgba(255,154,60,.45);background:rgba(255,154,60,.12);}
.badge-plain{color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.04);}

/* 导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  padding:16px 0 0;
  transition:padding .25s ease;
}
.site-header.is-scrolled{padding-top:10px;}
.nav-pill{
  width:min(1100px,92vw);margin:0 auto;
  height:60px;display:flex;align-items:center;gap:18px;
  padding:0 12px 0 20px;border-radius:var(--r-pill);
  background:var(--overlay);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
  transition:height .25s ease,background-color .25s ease;
}
.site-header.is-scrolled .nav-pill{height:54px;background:rgba(16,11,30,.92);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  color:#0D0918;font-family:var(--font-num);font-weight:700;font-size:13px;letter-spacing:.02em;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);
}
.nav-link:hover{background:var(--brand-soft);color:var(--text);}
.nav-link.is-active{background:var(--brand);color:var(--white);box-shadow:0 6px 18px rgba(123,59,255,.35);}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.16);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.drawer{
  position:fixed;inset:0;z-index:55;
  background:rgba(9,6,18,.96);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  padding:104px 24px 32px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .28s ease,opacity .28s ease;
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer a{
  display:flex;align-items:center;height:52px;border-radius:14px;padding:0 18px;
  font-size:16px;color:var(--text-2);border:1px solid var(--line);
}
.drawer a.is-active{background:var(--brand);color:var(--white);border-color:transparent;}
.drawer .drawer-cta{margin-top:auto;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  min-height:560px;
  padding:150px 0 84px;
  display:flex;align-items:center;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  filter:saturate(1.05);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 480px at 12% 30%,rgba(123,59,255,.55),transparent 62%),
    radial-gradient(700px 420px at 88% 76%,rgba(34,224,200,.22),transparent 66%),
    linear-gradient(180deg,rgba(13,9,24,.78) 0%,rgba(13,9,24,.90) 60%,var(--bg) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:#D9C8FF;
  background:rgba(123,59,255,.20);border:1px solid rgba(123,59,255,.42);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:20px;
}
.eyebrow i{font-style:normal;color:var(--cyan);}
.hero h1{
  font-size:clamp(28px,4.6vw,52px);
  line-height:1.25;font-weight:800;letter-spacing:.02em;
  margin-bottom:20px;max-width:16em;
  text-shadow:0 6px 30px rgba(0,0,0,.35);
}
.hero-sub{color:var(--text-2);font-size:17px;line-height:1.85;max-width:34em;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;}
.stat-chip{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(27,20,48,.72);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:9px 16px;
}
.stat-chip .num{font-family:var(--font-num);font-size:18px;font-weight:700;color:var(--cyan);line-height:1;}
.stat-chip .lbl{font-size:13px;color:var(--text-2);}

.task-card{
  background:linear-gradient(160deg,rgba(27,20,48,.94),rgba(22,16,40,.86));
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--shadow-hover);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.task-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.task-card h2{font-size:19px;font-weight:700;line-height:1.4;}
.task-card .pct{font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--accent);line-height:1;}
.task-list{margin:18px 0 0;display:flex;flex-direction:column;gap:12px;}
.task-line{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--text-2);}
.bar{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.10);overflow:hidden;}
.bar > i{
  display:block;height:100%;width:0;border-radius:inherit;
  background:linear-gradient(90deg,var(--brand),var(--cyan));
  transition:width .6s ease;
}
.is-in .bar > i{width:var(--p,0%);}
.task-note{margin-top:16px;font-size:13px;color:var(--text-3);border-top:1px solid var(--line);padding-top:14px;}

/* 数据条 */
.proof-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:linear-gradient(120deg,rgba(123,59,255,.16),rgba(34,224,200,.08));
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;margin-top:-40px;position:relative;z-index:5;
}
.proof{display:flex;flex-direction:column;gap:6px;}
.proof b{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--white);line-height:1.1;}
.proof span{font-size:14px;color:var(--text-2);}

/* 玩法：左图右文时间轴 */
.play-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:52px;align-items:center;}
.play-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.play-figure img{border-radius:0;width:100%;object-fit:cover;aspect-ratio:4/3;}
.play-figure figcaption{
  position:absolute;left:16px;right:16px;bottom:16px;
  background:rgba(13,9,24,.72);border:1px solid var(--line);
  border-radius:14px;padding:12px 14px;font-size:13px;color:var(--text-2);
}
.steps{display:flex;flex-direction:column;gap:18px;margin-top:28px;}
.step{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:nth-child(1){margin-left:0;}
.step:nth-child(2){margin-left:20px;}
.step:nth-child(3){margin-left:40px;}
.step:nth-child(4){margin-left:60px;}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(123,59,255,.42);}
.step-no{
  font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);border:1px solid rgba(123,59,255,.35);
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex:0 0 auto;
}
.step h3{font-size:19px;font-weight:600;line-height:1.4;margin-bottom:6px;}
.step p{font-size:15px;color:var(--text-2);line-height:1.8;}

/* 奖励预览 */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end;}
.tier{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow);position:relative;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tier:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,154,60,.36);}
.tier-1{padding:22px;}
.tier-2{padding:30px 24px;}
.tier-3{padding:38px 26px;border-color:rgba(255,154,60,.38);box-shadow:0 12px 34px rgba(255,154,60,.16);}
.tier h3{font-size:20px;font-weight:600;margin:14px 0 8px;}
.tier p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:18px;min-height:50px;}
.tier .bar{margin-bottom:10px;}
.tier .tier-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);font-family:var(--font-num);}

/* 任务清单 */
.checklist{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:8px;display:flex;flex-direction:column;
}
.check-row{
  display:grid;grid-template-columns:44px 1.1fr 1.4fr auto;gap:18px;align-items:center;
  padding:18px 16px;border-radius:var(--r-card);
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.check-row:last-child{border-bottom:0;}
.check-row:hover{background:rgba(123,59,255,.08);}
.check-mark{
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  font-size:14px;font-weight:700;font-family:var(--font-num);
}
.is-done .check-mark{background:rgba(34,224,200,.16);color:var(--ok);border:1px solid rgba(34,224,200,.42);}
.is-doing .check-mark{background:rgba(123,59,255,.20);color:#CDB4FF;border:1px solid rgba(123,59,255,.5);}
.is-todo .check-mark{background:rgba(255,255,255,.05);color:var(--text-3);border:1px solid var(--line);}
.check-row .name{font-size:16px;font-weight:600;}
.check-row .desc{font-size:14px;color:var(--text-2);}
.is-done .name{color:var(--text-2);}
.check-state{font-size:13px;}
.is-done .check-state{color:var(--ok);}
.is-doing .check-state{color:#CDB4FF;}
.is-todo .check-state{color:var(--text-3);}

/* 资讯（浅色区） */
.section--light .news-card,
.section--light .news-side,
.section--light .faq-item{background:#FFFFFF;border:1px solid var(--line-dark);}
.news-layout{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch;}
.news-feature{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-lg);
  box-shadow:0 10px 30px rgba(23,14,48,.10);
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-feature:hover{transform:translateY(-3px);box-shadow:0 20px 44px rgba(23,14,48,.18);}
.news-feature-media{position:relative;}
.news-feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.news-feature-media .badge{position:absolute;left:14px;top:14px;background:#0D0918;border-color:rgba(34,224,200,.4);}
.news-feature-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-feature h3{
  font-size:22px;line-height:1.45;font-weight:700;color:#160F2E;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-feature p{
  color:#4A4363;font-size:15px;line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#7A729A;margin-top:auto;}
.news-meta .more{color:#5B21C9;font-weight:600;}
.news-side-col{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.news-side{
  display:grid;grid-template-columns:130px 1fr;gap:0;overflow:hidden;border-radius:var(--r-card);
  box-shadow:0 8px 22px rgba(23,14,48,.08);
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-side:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(23,14,48,.16);}
.news-side img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.news-side-body{padding:16px 18px;display:flex;flex-direction:column;gap:8px;}
.news-side h3{
  font-size:16px;line-height:1.5;font-weight:600;color:#160F2E;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-side p{
  font-size:13px;color:#6B6390;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-side .news-meta{font-size:12px;}

/* 空态 */
.empty-state{
  grid-column:1/-1;
  background:#FFFFFF;border:1px dashed rgba(13,9,24,.18);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state .art{
  width:64px;height:64px;border-radius:20px;display:grid;place-items:center;
  background:rgba(123,59,255,.10);border:1px solid rgba(123,59,255,.24);
  font-family:var(--font-num);font-weight:700;color:#5B21C9;font-size:20px;
}
.empty-state p{color:#4A4363;font-size:15px;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{border-radius:var(--r-card);overflow:hidden;transition:box-shadow .2s ease;}
.faq-item.is-open{box-shadow:0 14px 32px rgba(23,14,48,.14);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:17px;font-weight:600;color:#160F2E;line-height:1.5;
}
.faq-q .ico{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;
  display:grid;place-items:center;font-family:var(--font-num);font-size:15px;
  background:rgba(123,59,255,.12);color:#5B21C9;
  transition:transform .25s ease,background-color .25s ease,color .25s ease;
}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 22px 22px;color:#4A4363;font-size:15px;line-height:1.9;}

/* 结尾 CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,#150E2C,#221641 62%,#123A3A);
  border:1px solid var(--line);
  padding:56px 40px;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;top:-40%;left:-10%;width:60%;height:180%;
  background:linear-gradient(90deg,rgba(123,59,255,.42),transparent);
  transform:rotate(14deg);pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,2.2vw,30px);font-weight:700;line-height:1.35;margin-bottom:14px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:40em;margin:0 auto 26px;}

/* 页脚 */
.site-footer{background:#0A0713;border-top:1px solid var(--line);padding-top:64px;margin-top:var(--sp-3);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;font-size:12px;}
.footer-brand span{font-size:16px;font-weight:700;}
.footer-about p{color:var(--text-3);font-size:14px;line-height:1.85;max-width:30em;}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--cyan);}
.footer-contact li{font-size:14px;color:var(--text-3);line-height:1.8;}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--cyan);}

/* 响应式 */
@media (max-width:1439px){
  :root{--container:1200px;}
}
@media (max-width:1199px){
  :root{--container:960px;--sp-1:80px;--sp-2:64px;--sp-3:48px;--sp-4:36px;}
  .play-wrap{gap:36px;}
}
@media (max-width:991px){
  :root{--sp-1:64px;--sp-2:52px;--sp-3:40px;--sp-4:28px;}
  .nav-menu{display:none;}
  .nav-right .btn-sm{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:130px 0 64px;min-height:auto;}
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero h1{max-width:none;}
  .play-wrap{grid-template-columns:1fr;}
  .tiers{grid-template-columns:1fr;align-items:stretch;}
  .tier-2,.tier-3{padding:24px;}
  .proof-strip{grid-template-columns:repeat(2,1fr);margin-top:24px;}
  .news-layout{grid-template-columns:1fr;}
  .news-side-col{grid-template-rows:auto;grid-template-columns:1fr 1fr;}
  .check-row{grid-template-columns:36px 1fr;grid-template-areas:"mark name" ". desc";gap:8px 12px;}
  .check-row .bar{grid-column:2;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .brand-text{font-size:15px;}
  .hero-stats{gap:10px;}
  .stat-chip{padding:8px 12px;}
  .step:nth-child(2),.step:nth-child(3),.step:nth-child(4){margin-left:0;}
  .news-side-col{grid-template-columns:1fr;}
  .news-side{grid-template-columns:110px 1fr;}
  .cta-band{padding:40px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .proof b{font-size:24px;}
}
@media (max-width:479px){
  :root{--sp-1:52px;--sp-2:44px;}
  .container{padding:0 14px;}
  .nav-pill{padding:0 8px 0 14px;gap:10px;}
  .brand-text{font-size:14px;}
  .hero-actions .btn{width:100%;}
  .proof-strip{grid-template-columns:1fr;padding:20px;}
  .news-feature-body{padding:18px;}
  .task-card{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root{
  --primary:#7B3BFF;
  --primary-2:#9C6BFF;
  --primary-soft:rgba(123,59,255,.16);
  --accent:#22E0C8;
  --warm:#FF9A3C;
  --bg:#0D0918;
  --surface:#161028;
  --card:#1B1430;
  --light:#F6F3FF;
  --text:#F2EEFF;
  --text-2:#B9B0D6;
  --text-3:#8B83A8;
  --white:#FFFFFF;
  --success:#22E0C8;
  --warn:#FFB020;
  --error:#FF5D73;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --line-light:rgba(13,9,24,.08);
  --radius-card:18px;
  --radius-lg:24px;
  --radius-pill:999px;
  --radius-badge:8px;
  --radius-img:14px;
  --shadow-card:0 8px 24px rgba(123,59,255,.16);
  --shadow-hover:0 16px 40px rgba(123,59,255,.28);
  --container:1280px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Inter","Barlow","Helvetica Neue",Arial,sans-serif;
}
/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:700;letter-spacing:.02em;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(123,59,255,.45);color:#fff;}

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

/* ===== 阅读进度条 ===== */
.read-progress{
  position:fixed;
  top:0;left:0;
  height:3px;width:0;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  z-index:200;
  transition:width .12s linear;
}

/* ===== 悬浮胶囊导航 ===== */
.site-header{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:120;
  display:flex;
  justify-content:center;
  padding:0 16px;
}
.nav-pill{
  width:min(1100px,92vw);
  height:60px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 12px 0 18px;
  border-radius:var(--radius-pill);
  background:rgba(22,16,40,.72);
  border:1px solid rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 12px 34px rgba(0,0,0,.38);
  transition:height .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled .nav-pill{
  height:54px;
  background:rgba(22,16,40,.92);
  box-shadow:0 14px 38px rgba(0,0,0,.5);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(135deg,var(--primary),#4A1FBF);
  color:#fff;
  font-family:var(--font-num);
  font-size:13px;
  font-weight:800;
  letter-spacing:.04em;
  box-shadow:0 6px 18px rgba(123,59,255,.45);
}
.brand-text{
  font-size:16px;
  font-weight:700;
  color:var(--text);
  white-space:nowrap;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:var(--radius-pill);
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--primary-soft);color:var(--text);}
.nav-link:active{background:rgba(123,59,255,.28);}
.nav-link.is-active{
  background:var(--primary);
  color:var(--white);
  box-shadow:0 6px 18px rgba(123,59,255,.4);
}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  padding:0 11px;
  flex-direction:column;
  justify-content:center;
  gap:4px;
}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--text);border-radius:2px;transition:transform .22s ease,opacity .22s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 移动端抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:110;
  background:rgba(13,9,24,.97);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  padding:100px 24px 32px;
  display:flex;
  flex-direction:column;
  gap:8px;
  transform:translateY(-100%);
  opacity:0;
  pointer-events:none;
  transition:transform .3s ease,opacity .3s ease;
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer a{
  display:flex;
  align-items:center;
  height:52px;
  padding:0 18px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-2);
  font-size:16px;
}
.drawer a.is-active{background:var(--primary);color:#fff;border-color:transparent;}
.drawer .drawer-cta{margin-top:auto;justify-content:center;background:var(--primary);color:#fff;border-color:transparent;font-weight:600;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 22px rgba(123,59,255,.38);
}
.btn-primary:hover{background:#8B52FF;transform:translateY(-2px);box-shadow:0 14px 32px rgba(123,59,255,.5);}
.btn-primary:active{transform:translateY(0);background:#6C2BE8;}
.btn-ghost{
  border-color:var(--line-strong);
  color:var(--text);
  background:transparent;
}
.btn-ghost:hover{background:rgba(123,59,255,.12);border-color:rgba(123,59,255,.55);transform:translateY(-2px);}
.btn-link{
  height:auto;padding:0;
  color:var(--accent);
  font-size:14.5px;
  font-weight:600;
  border:0;
}
.btn-link:hover{color:#5BF0DC;text-decoration:underline;text-underline-offset:3px;}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-badge);
  font-size:12.5px;
  line-height:1.5;
  font-weight:600;
}
.badge-cat{
  color:var(--accent);
  border:1px solid rgba(34,224,200,.45);
  background:rgba(34,224,200,.10);
}
.badge-warm{
  color:var(--warm);
  border:1px solid rgba(255,154,60,.45);
  background:rgba(255,154,60,.12);
}
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-3);
  font-size:13px;
}

/* ===== 内页 banner ===== */
.page-banner{
  position:relative;
  overflow:hidden;
  padding:152px 0 60px;
  background:var(--surface);
}
.banner-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.42;
}
.banner-mask{
  position:absolute;
  inset:0;
  background:
    radial-gradient(120% 90% at 12% 0%,rgba(123,59,255,.55),transparent 62%),
    linear-gradient(180deg,rgba(13,9,24,.55) 0%,rgba(13,9,24,.92) 68%,var(--bg) 100%);
}
.banner-inner{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--text-3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-3);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--text-2);}
.article-title{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.28;
  font-weight:800;
  color:var(--text);
  max-width:900px;
  margin-bottom:20px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:14px;
  color:var(--text-3);
  font-family:var(--font-num);
}
.article-meta .meta-cn{font-family:var(--font-cn);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.7;}

/* ===== 正文布局 ===== */
.page-main{padding:64px 0 96px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;
  align-items:start;
}
.article-main{
  max-width:800px;
  margin:0 auto;
  min-width:0;
}
.article-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px 36px 40px;
  box-shadow:var(--shadow-card);
}
.article-body{
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body strong{color:var(--text);font-weight:700;}
.article-body h2{
  position:relative;
  font-size:28px;
  line-height:1.3;
  font-weight:700;
  color:var(--text);
  margin:2em 0 .8em;
  padding-left:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.16em;bottom:.16em;
  width:4px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.article-body h3{
  font-size:21px;
  line-height:1.4;
  font-weight:600;
  color:var(--text);
  margin:1.6em 0 .6em;
}
.article-body img{
  width:100%;
  height:auto;
  border-radius:var(--radius-img);
  margin:1.4em 0;
  box-shadow:0 10px 28px rgba(0,0,0,.4);
}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:rgba(123,59,255,.12);
  border-left:4px solid var(--primary);
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul{margin:0 0 1.4em;}
.article-body ul li{
  position:relative;
  padding-left:24px;
  margin-bottom:.55em;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;top:.78em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 10px rgba(34,224,200,.6);
}
.article-body ol{counter-reset:ol;margin:0 0 1.4em;}
.article-body ol li{
  position:relative;
  padding-left:34px;
  margin-bottom:.55em;
  counter-increment:ol;
}
.article-body ol li::before{
  content:counter(ol);
  position:absolute;
  left:0;top:.38em;
  width:21px;height:21px;
  border-radius:7px;
  background:rgba(123,59,255,.24);
  color:var(--primary-2);
  font-family:var(--font-num);
  font-size:12px;
  line-height:21px;
  text-align:center;
  font-weight:700;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
  border-radius:var(--radius-img);
  overflow:hidden;
}
.article-body th{
  background:rgba(123,59,255,.2);
  color:var(--text);
  text-align:left;
  font-weight:600;
  padding:12px 14px;
}
.article-body td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.035);}
.article-body a{
  color:var(--accent);
  text-decoration:underline;
  text-underline-offset:3px;
}
.article-body a:hover{color:#63F1DF;}
.article-body hr{
  border:0;
  height:1px;
  background:var(--line);
  margin:2em 0;
}

/* ===== 空态 ===== */
.empty-state{
  text-align:center;
  padding:64px 24px;
}
.empty-icon{
  width:82px;height:82px;
  margin:0 auto 22px;
  border-radius:50%;
  display:grid;place-items:center;
  background:rgba(123,59,255,.14);
  border:1px dashed rgba(123,59,255,.5);
  color:var(--primary-2);
  font-size:30px;
}
.empty-state h2{font-size:22px;color:var(--text);margin-bottom:10px;}
.empty-state p{color:var(--text-3);font-size:15px;margin-bottom:24px;}

/* ===== 侧栏 ===== */
.sidebar{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 22px 24px;
  box-shadow:var(--shadow-card);
  transition:box-shadow .2s ease,transform .2s ease;
}
.side-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.side-title{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:15px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
}
.side-title::before{
  content:"";
  width:4px;height:15px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.side-list li + li{border-top:1px solid var(--line);}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 2px;
  font-size:14.5px;
  color:var(--text-2);
  transition:color .2s ease,padding-left .2s ease;
}
.side-list a:hover{color:var(--accent);padding-left:6px;}
.side-list a i{font-size:12px;color:var(--text-3);}
.side-cta{
  background:linear-gradient(150deg,rgba(123,59,255,.34),rgba(34,224,200,.14)),var(--card);
  border-color:rgba(123,59,255,.4);
}
.side-cta p{font-size:14px;color:var(--text-2);margin-bottom:16px;line-height:1.75;}
.side-cta .btn{width:100%;}

/* ===== 相关推荐 ===== */
.related{padding:0 0 96px;}
.section-head{margin-bottom:34px;}
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--accent);
  letter-spacing:.08em;
  margin-bottom:12px;
  font-family:var(--font-num);
}
.section-kicker::before{
  content:"";
  width:22px;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  border-radius:2px;
}
.section-head h2{font-size:clamp(24px,3vw,32px);color:var(--text);}
.section-head p{margin-top:10px;color:var(--text-3);font-size:15px;max-width:640px;}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.news-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,255,255,.10);
}
.news-cover{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--surface);
}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-cover img{transform:scale(1.05);}
.news-cover .badge{position:absolute;left:14px;top:14px;background:rgba(13,9,24,.75);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{
  font-size:18px;
  line-height:1.45;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body p{
  font-size:14px;
  color:var(--text-3);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
  font-family:var(--font-num);
}

/* ===== 收尾 CTA ===== */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  padding:52px 48px;
  background:linear-gradient(120deg,#1E1338 0%,#150F27 60%,#1B1430 100%);
  border:1px solid rgba(123,59,255,.28);
  box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";
  position:absolute;
  top:-70%;left:-15%;
  width:75%;height:240%;
  background:linear-gradient(90deg,rgba(123,59,255,.34),rgba(34,224,200,.10),transparent);
  transform:rotate(16deg);
  pointer-events:none;
}
.cta-band .cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:var(--text);margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:600px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:96px;
  background:var(--surface);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
}
.footer-about p{color:var(--text-3);font-size:14px;line-height:1.8;max-width:380px;}
.footer-col h3{
  font-size:15px;
  color:var(--text);
  margin-bottom:18px;
  font-weight:700;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{
  font-size:14px;
  color:var(--text-3);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col a:hover{color:var(--accent);padding-left:4px;}
.footer-contact li{font-size:14px;color:var(--text-3);margin-bottom:11px;line-height:1.7;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
  font-family:var(--font-num);
}
.footer-bottom span{font-family:var(--font-cn);}

/* ===== 动效偏好 ===== */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* ===== 响应式 ===== */
@media (max-width:1439px){
  .container{max-width:1200px;}
}
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .sidebar{position:static;top:auto;flex-direction:row;flex-wrap:wrap;}
  .sidebar .side-card{flex:1 1 280px;}
}
@media (max-width:1199px){
  .container{max-width:960px;}
}
@media (max-width:992px){
  .nav-menu{display:none;}
  .nav-toggle{display:flex;}
  .nav-right .btn-sm{display:none;}
  .nav-pill{justify-content:space-between;padding:0 12px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{margin-top:72px;}
  .page-main{padding:48px 0 72px;}
  .related{padding-bottom:72px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .page-banner{padding:132px 0 44px;}
  .article-card{padding:26px 22px 30px;border-radius:var(--radius-card);}
  .article-body h2{font-size:23px;}
  .article-body h3{font-size:19px;}
  .cta-band{padding:38px 24px;}
  .cta-band .cta-inner{flex-direction:column;align-items:flex-start;}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head{margin-bottom:26px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-text{font-size:14.5px;}
  .article-title{font-size:24px;}
  .article-meta{gap:10px;font-size:13px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .sidebar .side-card{flex:1 1 100%;}
  .article-body table{font-size:13.5px;}
  .article-body th,.article-body td{padding:9px 10px;}
}

/* roulang page: category1 */
:root{
  --purple:#7B3BFF;
  --purple-soft:rgba(123,59,255,.16);
  --cyan:#22E0C8;
  --orange:#FF9A3C;
  --bg:#0D0918;
  --surface:#161028;
  --card:#1B1430;
  --glass:rgba(22,16,40,.72);
  --text:#F2EEFF;
  --text-2:#B9B0D6;
  --text-3:#8B83A8;
  --white:#FFFFFF;
  --success:#22E0C8;
  --warn:#FFB020;
  --error:#FF5D73;
  --line:rgba(255,255,255,.08);
  --line-dark:rgba(13,9,24,.08);
  --r-card:18px;
  --r-lg:24px;
  --r-pill:999px;
  --r-badge:8px;
  --r-img:14px;
  --sh-card:0 8px 24px rgba(123,59,255,.16);
  --sh-hover:0 16px 40px rgba(123,59,255,.28);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Barlow","Inter","PingFang SC",system-ui,sans-serif;
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--purple);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:72px 0}
.section-light{background:#F6F3FF;color:#1A1230}
.section-light .eyebrow{color:#6A4BD8}
.section-light .lead{color:#4A4166}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.5;letter-spacing:.08em;
  color:var(--cyan);text-transform:none;
  border:1px solid rgba(34,224,200,.35);
  border-radius:var(--r-pill);
  padding:6px 14px;background:rgba(34,224,200,.08);
}
.section-title{
  font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;letter-spacing:.02em;
  margin:18px 0 14px;position:relative;padding-left:18px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:6px;border-radius:6px;
  background:linear-gradient(180deg,var(--purple),var(--cyan));
}
.lead{color:var(--text-2);font-size:16px;line-height:1.85;max-width:62ch}
.muted{color:var(--text-3);font-size:14px;line-height:1.7}

/* ===== 导航 ===== */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120;pointer-events:none}
.nav-pill{
  pointer-events:auto;
  width:min(1100px,92vw);height:60px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:0 12px 0 18px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 8px 30px rgba(0,0,0,.35);
  transition:height var(--ease),background var(--ease);
}
.site-header.is-scrolled .nav-pill{height:54px;background:rgba(22,16,40,.92)}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-family:var(--font-num);font-weight:700;font-size:14px;color:#fff;
  background:linear-gradient(135deg,var(--purple),#4E1FD9);
  box-shadow:0 4px 14px rgba(123,59,255,.5);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  display:inline-block;padding:8px 16px;border-radius:var(--r-pill);
  font-size:15px;color:var(--text-2);transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--purple-soft);color:var(--text)}
.nav-link.is-active{background:var(--purple);color:#fff;box-shadow:0 6px 18px rgba(123,59,255,.4)}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-toggle span{transition:transform var(--ease),opacity var(--ease)}

.drawer{
  pointer-events:auto;
  position:fixed;inset:0;z-index:110;
  background:rgba(13,9,24,.96);
  backdrop-filter:blur(10px);
  padding:96px 20px 120px;
  display:none;flex-direction:column;gap:6px;
}
.drawer.is-open{display:flex}
.drawer a.drawer-link{
  height:52px;display:flex;align-items:center;padding:0 18px;border-radius:14px;
  font-size:17px;color:var(--text-2);border:1px solid transparent;
}
.drawer a.drawer-link:hover{background:var(--purple-soft);color:var(--text)}
.drawer a.drawer-link.is-active{background:var(--purple);color:#fff}
.drawer-cta{position:fixed;left:20px;right:20px;bottom:24px;z-index:111;display:none}
.drawer-cta.is-open{display:block}
.drawer-cta .btn{width:100%;justify-content:center}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  border:1px solid transparent;
}
.btn-primary{background:var(--purple);color:#fff;box-shadow:0 10px 26px rgba(123,59,255,.38)}
.btn-primary:hover{background:#8C55FF;transform:translateY(-2px);box-shadow:0 16px 34px rgba(123,59,255,.5)}
.btn-outline{border-color:rgba(255,255,255,.22);color:var(--text);background:rgba(255,255,255,.02)}
.btn-outline:hover{background:var(--purple-soft);border-color:rgba(123,59,255,.6);transform:translateY(-2px)}
.btn-ghost{color:var(--cyan);border-color:rgba(34,224,200,.35)}
.btn-ghost:hover{background:rgba(34,224,200,.12);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn:active{transform:translateY(0) scale(.985)}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{color:var(--cyan);font-weight:600;font-size:15px;border-bottom:1px solid transparent;padding-bottom:2px;transition:border-color var(--ease),color var(--ease)}
.link-arrow:hover{border-color:var(--cyan)}

/* ===== Hero ===== */
.hero{
  position:relative;padding:150px 0 78px;min-height:560px;
  background-image:linear-gradient(115deg,rgba(13,9,24,.94) 0%,rgba(13,9,24,.72) 46%,rgba(123,59,255,.34) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:140px;
  background:linear-gradient(180deg,rgba(13,9,24,0),var(--bg));
  pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.45fr .9fr;gap:40px;align-items:center}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.crumbs a:hover{color:var(--cyan)}
.crumbs span.sep{opacity:.5}
.hero h1{
  font-size:clamp(28px,4.6vw,52px);font-weight:800;line-height:1.25;letter-spacing:.02em;
  margin-bottom:16px;
}
.hero h1 .h1-sub{display:block;font-size:clamp(15px,1.6vw,19px);font-weight:500;color:var(--cyan);letter-spacing:.04em;margin-top:12px}
.hero .hero-desc{color:var(--text-2);font-size:17px;line-height:1.85;max-width:52ch;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px}
.stat-chip{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 16px;border-radius:var(--r-pill);
  background:rgba(22,16,40,.72);border:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.stat-chip b{font-family:var(--font-num);font-size:18px;font-weight:700;color:var(--text);letter-spacing:.02em}
.stat-chip i{width:8px;height:8px;border-radius:50%;background:var(--cyan);display:inline-block}
.stat-chip:nth-child(2) i{background:var(--purple)}
.stat-chip:nth-child(3) i{background:var(--orange)}

.task-card{
  background:linear-gradient(160deg,rgba(27,20,48,.96),rgba(22,16,40,.88));
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--sh-card);
  backdrop-filter:blur(6px);
}
.task-card h2{font-size:20px;font-weight:700;margin-bottom:6px}
.task-card .task-note{font-size:14px;color:var(--text-3);margin-bottom:20px}
.progress-row{display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--text-2);margin-bottom:10px}
.progress-row b{font-family:var(--font-num);font-size:22px;color:var(--cyan);font-weight:700}
.bar{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.10);overflow:hidden}
.bar span{
  display:block;height:100%;border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--purple),var(--cyan));
  animation:grow 600ms ease both;
}
.bar.orange span{background:linear-gradient(90deg,var(--purple),var(--orange))}
@keyframes grow{from{width:0 !important}}
.task-list-mini{margin-top:22px;display:grid;gap:10px}
.task-list-mini li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2)}
.dot-ok,.dot-run,.dot-idle{width:18px;height:18px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;font-size:11px;font-weight:700}
.dot-ok{background:rgba(34,224,200,.18);color:var(--cyan);border:1px solid rgba(34,224,200,.5)}
.dot-run{background:rgba(123,59,255,.2);color:#C8AEFF;border:1px solid rgba(123,59,255,.6)}
.dot-idle{background:rgba(255,255,255,.06);color:var(--text-3);border:1px solid var(--line)}

/* ===== 三列卡片网格 ===== */
.hall-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.hall-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;
}
.hall-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(255,255,255,.16)}
.hall-card figure{margin:0;position:relative}
.hall-card figure img{width:100%;height:186px;object-fit:cover;border-radius:0}
.hall-card figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,9,24,0) 40%,rgba(13,9,24,.85));
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-block;font-size:12px;line-height:1.5;letter-spacing:.04em;
  padding:4px 10px;border-radius:var(--r-badge);
  border:1px solid rgba(34,224,200,.4);color:var(--cyan);background:rgba(34,224,200,.08);
}
.tag.purple{border-color:rgba(123,59,255,.5);color:#C3A9FF;background:rgba(123,59,255,.14)}
.tag.orange{border-color:rgba(255,154,60,.45);color:var(--orange);background:rgba(255,154,60,.12)}
.card-body h3{font-size:21px;font-weight:600;line-height:1.4}
.card-body p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.card-body ul{margin-top:2px;display:grid;gap:8px}
.card-body ul li{
  position:relative;padding-left:18px;font-size:14px;color:var(--text-2);
}
.card-body ul li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,var(--purple),var(--cyan));
}
.card-foot{margin-top:auto;padding-top:6px}

/* ===== 属性面板 ===== */
.panel-wrap{display:grid;grid-template-columns:1fr 1.25fr;gap:32px;align-items:start;margin-top:40px}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-card);
}
.panel h3{font-size:20px;font-weight:600;margin-bottom:18px}
.attr-list{display:grid;gap:14px}
.attr-item{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 16px;border-radius:14px;background:rgba(255,255,255,.03);
  border:1px solid var(--line);
}
.attr-item span{font-size:14px;color:var(--text-2)}
.attr-item b{font-family:var(--font-num);font-size:16px;color:var(--text);font-weight:700}
.rhythm{display:grid;gap:22px}
.rhythm-item h4{font-size:16px;font-weight:600;margin-bottom:8px;display:flex;justify-content:space-between;align-items:center}
.rhythm-item h4 em{font-family:var(--font-num);font-style:normal;color:var(--cyan);font-size:14px}

/* ===== 任务清单 ===== */
.task-table{margin-top:36px;display:grid;gap:14px}
.task-row{
  display:grid;grid-template-columns:44px 1.1fr 1.3fr 120px;gap:18px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 22px;box-shadow:var(--sh-card);
  transition:transform var(--ease),border-color var(--ease);
}
.task-row:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.16)}
.task-mark{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-size:14px;font-weight:700;font-family:var(--font-num)}
.is-done .task-mark{background:rgba(34,224,200,.16);color:var(--cyan);border:1px solid rgba(34,224,200,.55)}
.is-doing .task-mark{background:rgba(123,59,255,.18);color:#C8AEFF;border:1px solid rgba(123,59,255,.6)}
.is-todo .task-mark{background:rgba(255,255,255,.05);color:var(--text-3);border:1px solid var(--line)}
.task-name{font-size:16px;font-weight:600}
.task-desc{font-size:14px;color:var(--text-3)}
.status{
  justify-self:end;font-size:13px;padding:5px 12px;border-radius:var(--r-pill);white-space:nowrap;
}
.status.done{color:var(--cyan);background:rgba(34,224,200,.12);border:1px solid rgba(34,224,200,.4)}
.status.doing{color:#C8AEFF;background:rgba(123,59,255,.16);border:1px solid rgba(123,59,255,.5)}
.status.todo{color:var(--text-3);background:rgba(255,255,255,.05);border:1px solid var(--line)}
.task-row .bar{height:6px}

/* ===== 上手三步 ===== */
.steps{display:grid;gap:0;margin-top:40px;position:relative}
.step{
  display:grid;grid-template-columns:96px 1fr;gap:24px;padding:26px 0;
  border-top:1px solid var(--line);
}
.step:last-child{border-bottom:1px solid var(--line)}
.step-num{
  font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(123,59,255,.75);
}
.step h3{font-size:20px;font-weight:600;margin-bottom:8px}
.step p{font-size:15px;color:var(--text-2);max-width:70ch}

/* ===== FAQ ===== */
.faq-list{margin-top:36px;display:grid;gap:12px;max-width:900px}
.faq-item{
  background:#FFFFFF;border:1px solid var(--line-dark);border-radius:var(--r-card);
  overflow:hidden;box-shadow:0 6px 20px rgba(13,9,24,.06);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;font-weight:600;color:#1A1230;text-align:left;
}
.faq-q:hover{background:rgba(123,59,255,.05)}
.faq-q .chev{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;
  background:rgba(123,59,255,.12);color:#6A4BD8;font-size:13px;
  transition:transform var(--ease);
}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:#4A4166}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#120C24 0%,#1B1430 55%,#2A1750 100%);
  border-radius:var(--r-lg);border:1px solid var(--line);
  padding:56px 48px;margin:0 auto;
}
.cta-band::before{
  content:"";position:absolute;top:-40%;left:-10%;width:70%;height:180%;
  background:linear-gradient(115deg,rgba(123,59,255,.42),rgba(34,224,200,0) 62%);
  transform:rotate(-8deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;max-width:22ch}
.cta-inner p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:44ch}

/* ===== 页脚 ===== */
.site-footer{background:#0A0715;border-top:1px solid var(--line);padding:72px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;margin-bottom:16px}
.footer-about p{font-size:14px;color:var(--text-3);line-height:1.9;max-width:38ch}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-contact li{font-size:14px;color:var(--text-3);transition:color var(--ease)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ===== 断点 ===== */
@media (max-width:1439px){.container{max-width:1200px}}
@media (max-width:1199px){
  .container{max-width:960px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hall-grid{grid-template-columns:repeat(2,1fr)}
  .panel-wrap{grid-template-columns:1fr}
  .task-row{grid-template-columns:40px 1fr 120px}
  .task-row .bar-cell{grid-column:2 / span 2}
}
@media (max-width:991px){
  .container{max-width:100%;padding:0 16px}
  .section{padding:72px 0}
  .section-sm{padding:56px 0}
  .nav-menu{display:none}
  .nav-right .btn-primary{display:none}
  .nav-toggle{display:flex}
  .nav-pill{height:56px;padding:0 10px 0 14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:40px 24px}
}
@media (max-width:768px){
  .hall-grid{grid-template-columns:1fr}
  .hero{padding:120px 0 56px}
  .hero-stats{gap:10px}
  .step{grid-template-columns:64px 1fr;gap:16px}
  .step-num{font-size:26px}
  .task-row{grid-template-columns:36px 1fr;row-gap:12px;padding:16px}
  .task-row .status{justify-self:start;grid-column:2}
  .task-row .bar-cell{grid-column:2}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .hero h1{letter-spacing:0}
  .stat-chip{padding:8px 12px;font-size:13px}
  .btn{height:44px;padding:0 18px;font-size:14px}
  .section{padding:56px 0}
  .section-sm{padding:44px 0}
  .card-body h3{font-size:19px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand:#7B3BFF;
  --brand-soft:rgba(123,59,255,.16);
  --brand-line:rgba(123,59,255,.42);
  --neon:#22E0C8;
  --neon-soft:rgba(34,224,200,.10);
  --amber:#FF9A3C;
  --amber-soft:rgba(255,154,60,.12);
  --bg:#0D0918;
  --surface:#161028;
  --card:#1B1430;
  --overlay:rgba(22,16,40,.72);
  --text:#F2EEFF;
  --text-2:#B9B0D6;
  --text-3:#8B83A8;
  --white:#FFFFFF;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --light-bg:#F6F3FF;
  --light-card:#FFFFFF;
  --light-line:rgba(13,9,24,.08);
  --light-text:#1B1430;
  --light-text-2:#4A4266;
  --light-text-3:#6E668C;
  --success:#22E0C8;
  --warn:#FFB020;
  --danger:#FF5D73;
  --r-card:18px;
  --r-lg:24px;
  --r-pill:999px;
  --r-badge:8px;
  --r-img:14px;
  --shadow-card:0 8px 24px rgba(123,59,255,.16);
  --shadow-hover:0 16px 40px rgba(123,59,255,.28);
  --shadow-deep:0 18px 48px rgba(0,0,0,.42);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow","Inter","Helvetica Neue",Arial,sans-serif;
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
}
@media (max-width:1439px){.container{max-width:1200px}}
@media (max-width:1199px){.container{max-width:960px}}
@media (max-width:991px){.container{max-width:100%;padding:0 20px}}
@media (max-width:480px){.container{padding:0 16px}}

/* ---------- 顶部悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:14px;left:0;right:0;
  z-index:100;
  display:flex;
  justify-content:center;
  padding:0 16px;
  transition:top var(--ease);
}
.nav-pill{
  width:min(1100px,92vw);
  height:60px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 12px 0 18px;
  border-radius:var(--r-pill);
  background:var(--overlay);
  border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 12px 32px rgba(0,0,0,.35);
  transition:height var(--ease),background var(--ease);
}
.site-header.is-scrolled{top:10px}
.site-header.is-scrolled .nav-pill{height:54px;background:rgba(13,9,24,.94)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  background:linear-gradient(135deg,var(--brand),#5B21D6);
  color:var(--white);
  font-family:var(--font-num);
  font-size:13px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 4px 14px rgba(123,59,255,.5);
}
.brand-text{font-size:15.5px;font-weight:700;color:var(--white);letter-spacing:.02em;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 15px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--text-2);
  transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--brand-soft);color:var(--white)}
.nav-link:active{background:rgba(123,59,255,.28)}
.nav-link.is-active{background:var(--brand);color:var(--white);box-shadow:0 6px 18px rgba(123,59,255,.4)}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:background var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}
.nav-toggle:hover{background:var(--brand-soft)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  letter-spacing:.02em;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),#6030E0);
  color:var(--white);
  box-shadow:0 10px 26px rgba(123,59,255,.34);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(123,59,255,.46);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{
  border:1px solid var(--line-strong);
  color:var(--text);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand-line);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--neon);font-size:15px;font-weight:600;
  text-decoration:underline;text-underline-offset:3px;
  transition:color var(--ease);
}
.btn-link:hover{color:var(--white)}

/* ---------- 通用排版 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:var(--r-badge);
  border:1px solid var(--brand-line);
  background:var(--brand-soft);
  color:#CDB8FF;
  font-size:12.5px;
  letter-spacing:.06em;
  margin-bottom:18px;
}
.h2{
  position:relative;
  padding-left:18px;
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.02em;
}
.h2::before{
  content:"";
  position:absolute;left:0;top:.16em;bottom:.16em;
  width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--neon));
}
.lead{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.85;max-width:38em}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 面包屑与页首 ---------- */
.page-hero{
  position:relative;
  padding:158px 0 76px;
  overflow:hidden;
  background-color:var(--bg);
  background-image:linear-gradient(180deg,rgba(13,9,24,.82) 0%,rgba(13,9,24,.62) 42%,rgba(13,9,24,.96) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;inset:auto 0 0 0;height:220px;
  background:linear-gradient(180deg,rgba(13,9,24,0),rgba(13,9,24,1));
  pointer-events:none;
}
.breadcrumb{
  position:relative;z-index:2;
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--neon)}
.breadcrumb span[aria-current]{color:var(--neon)}
.page-title{
  position:relative;z-index:2;
  font-size:clamp(28px,4.4vw,50px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:.02em;
  max-width:20em;
}
.page-title .hl{
  background:linear-gradient(120deg,var(--brand),var(--neon));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-lead{
  position:relative;z-index:2;
  margin-top:20px;
  max-width:640px;
  font-size:17px;
  color:var(--text-2);
  line-height:1.85;
}
.hero-tags{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ---------- 数据条 ---------- */
.stat-strip{
  position:relative;z-index:3;
  margin-top:-40px;
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 28px;
  box-shadow:var(--shadow-card);
}
.stat-item{display:flex;flex-direction:column;gap:6px;padding-right:18px;border-right:1px dashed var(--line)}
.stat-item:last-child{border-right:0;padding-right:0}
.stat-num{font-family:var(--font-num);font-size:30px;font-weight:700;letter-spacing:.01em;color:var(--white)}
.stat-num small{font-size:15px;color:var(--text-3);margin-left:4px}
.stat-label{font-size:13.5px;color:var(--text-3)}

/* ---------- 图文交替长条列表 ---------- */
.alt-list{display:flex;flex-direction:column;gap:44px}
.alt-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:28px;
  border-radius:var(--r-lg);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.alt-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,255,255,.10)}
.alt-row--reverse .alt-media{order:2}
.alt-media{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-img);
  border:1px solid var(--line);
}
.alt-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;transition:transform 400ms ease}
.alt-row:hover .alt-media img{transform:scale(1.03)}
.alt-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(123,59,255,.14),rgba(13,9,24,.42));
  pointer-events:none;
}
.alt-index{
  display:block;
  font-family:var(--font-num);
  font-size:44px;
  font-weight:800;
  line-height:1;
  letter-spacing:.02em;
  background:linear-gradient(135deg,var(--brand),var(--neon));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.alt-title{
  margin-top:12px;
  font-size:22px;
  font-weight:700;
  line-height:1.4;
  letter-spacing:.02em;
}
.alt-text{
  margin-top:12px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.85;
  max-width:34em;
}
.tag-group{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;
  border-radius:var(--r-badge);
  font-size:12.5px;
  line-height:1.5;
  border:1px solid rgba(34,224,200,.42);
  background:var(--neon-soft);
  color:#8FF2E4;
}
.tag--amber{border-color:rgba(255,154,60,.42);background:var(--amber-soft);color:#FFC08A}
.tag--brand{border-color:var(--brand-line);background:var(--brand-soft);color:#CDB8FF}

/* ---------- 进度面板 ---------- */
.panel{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(123,59,255,.16),rgba(22,16,40,.72) 55%,rgba(13,9,24,.9));
  padding:34px;
  box-shadow:var(--shadow-card);
}
.panel-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:10px}
.panel-title{font-size:22px;font-weight:700;letter-spacing:.02em}
.panel-note{font-size:13.5px;color:var(--text-3)}
.panel-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.4fr) 110px;
  gap:22px;
  align-items:center;
  padding:20px 0;
  border-bottom:1px dashed var(--line);
}
.panel-row:last-child{border-bottom:0;padding-bottom:0}
.panel-name{font-size:16px;font-weight:600}
.panel-sub{font-size:13px;color:var(--text-3);margin-top:2px}
.bar{
  position:relative;
  height:6px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.10);
  overflow:hidden;
}
.bar > i{
  display:block;height:100%;width:0;
  border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--brand),var(--neon));
  transition:width 600ms ease;
}
.bar--amber > i{background:linear-gradient(90deg,#FF9A3C,#FFC98A)}
.bar-value{
  font-family:var(--font-num);
  font-size:13.5px;color:var(--text-2);
  margin-top:8px;
}
.status{
  display:inline-flex;align-items:center;justify-content:center;
  height:30px;padding:0 12px;
  border-radius:var(--r-badge);
  font-size:12.5px;line-height:1;
  white-space:nowrap;
}
.status--done{background:var(--neon-soft);border:1px solid rgba(34,224,200,.45);color:#8FF2E4}
.status--doing{background:var(--brand-soft);border:1px solid var(--brand-line);color:#CDB8FF}
.status--todo{background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-3)}

/* ---------- 步骤流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px}
.step{
  position:relative;
  padding:26px 22px;
  border-radius:var(--r-card);
  background:var(--card);
  border:1px solid var(--line);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,255,255,.10)}
.step-no{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  color:#CDB8FF;
  font-family:var(--font-num);
  font-size:15px;font-weight:700;
  margin-bottom:16px;
}
.step h3{font-size:18px;font-weight:600;letter-spacing:.02em}
.step p{margin-top:10px;color:var(--text-2);font-size:14.5px;line-height:1.8}

/* ---------- FAQ 浅色区 ---------- */
.faq-section{
  background:var(--light-bg);
  color:var(--light-text);
  padding:88px 0;
}
.faq-section .eyebrow{
  border-color:rgba(123,59,255,.28);
  background:rgba(123,59,255,.10);
  color:#5B21D6;
}
.faq-section .h2::before{background:linear-gradient(180deg,var(--brand),#22B7A4)}
.faq-section .lead{color:var(--light-text-2)}
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{
  background:var(--light-card);
  border:1px solid var(--light-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{border-color:rgba(123,59,255,.28);box-shadow:0 10px 26px rgba(123,59,255,.12)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--light-text);
}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:8px;
  background:rgba(123,59,255,.10);
  color:var(--brand);
  font-family:var(--font-num);
  font-size:16px;font-weight:700;
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(135deg);background:var(--brand);color:var(--white)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 320ms ease;
}
.faq-a p{
  padding:0 24px 22px;
  color:var(--light-text-2);
  font-size:15.5px;
  line-height:1.85;
}
.faq-item.is-open .faq-a{max-height:320px}

/* ---------- 结尾 CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background-color:#0A0713;
  background-image:linear-gradient(120deg,rgba(13,9,24,.94) 0%,rgba(22,16,40,.78) 50%,rgba(123,59,255,.42) 100%),url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-40%;left:-10%;
  width:70%;height:180%;
  background:linear-gradient(90deg,rgba(123,59,255,.22),rgba(34,224,200,.06),transparent);
  transform:skewX(-18deg);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;
  gap:28px;
  padding:72px 0;
}
.cta-title{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:.02em}
.cta-text{margin-top:12px;color:var(--text-2);font-size:15.5px;max-width:36em;line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#08060F;
  border-top:1px solid var(--line);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand span:last-child{font-size:16px;font-weight:700;color:var(--white)}
.footer-about p{color:var(--text-3);font-size:14.5px;line-height:1.85;max-width:32em}
.footer-col h3{font-size:15px;font-weight:700;color:var(--white);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--text-3);font-size:14.5px;transition:color var(--ease),padding-left var(--ease)}
.footer-col a:hover{color:var(--neon);padding-left:4px}
.footer-contact li{color:var(--text-3);font-size:14.5px;line-height:1.75}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  padding:22px 0 26px;
  border-top:1px solid var(--line);
  color:var(--text-3);
  font-size:13.5px;
}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;
  padding:104px 20px 32px;
  display:flex;flex-direction:column;gap:8px;
  background:linear-gradient(180deg,rgba(13,9,24,.98),rgba(22,16,40,.99));
  backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transform:translateY(-14px);
  transition:opacity 240ms ease,transform 240ms ease,visibility 240ms ease;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-link{
  display:flex;align-items:center;
  height:52px;padding:0 18px;
  border-radius:14px;
  font-size:17px;
  color:var(--text);
  border:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),color var(--ease);
}
.drawer-link:hover,.drawer-link:active{background:var(--brand-soft);border-color:var(--brand-line)}
.drawer-link.is-active{background:var(--brand);color:var(--white)}
.drawer .btn{margin-top:14px;height:52px;font-size:16px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .alt-row{gap:34px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:22px 18px}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(3){border-right:1px dashed var(--line)}
}
@media (max-width:991px){
  .nav-menu{display:none}
  .nav-toggle{display:flex}
  .nav-pill{padding:0 10px 0 14px;gap:10px}
  .nav-right .btn{display:none}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .page-hero{padding:132px 0 62px}
  .alt-row{grid-template-columns:1fr;gap:22px;padding:22px}
  .alt-row--reverse .alt-media{order:0}
  .panel-row{grid-template-columns:1fr;gap:12px;align-items:start}
  .panel-row .status{justify-self:start}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .faq-section{padding:64px 0}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .brand-text{font-size:14.5px}
  .page-title{font-size:clamp(26px,6.4vw,34px)}
  .stat-num{font-size:26px}
  .alt-title{font-size:20px}
  .panel{padding:24px}
  .cta-inner{padding:56px 0}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr;padding:22px}
  .stat-item{border-right:0;border-bottom:1px dashed var(--line);padding:0 0 14px}
  .stat-item:last-child{border-bottom:0;padding-bottom:0}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-actions .btn{width:100%}
  .alt-index{font-size:36px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .bar > i{transition:none !important}
}

/* roulang page: category3 */
:root{
  --c-primary:#7B3BFF;
  --c-primary-hi:#8F58FF;
  --c-accent:#22E0C8;
  --c-warm:#FF9A3C;
  --bg-base:#0D0918;
  --bg-sub:#161028;
  --bg-card:#1B1430;
  --bg-float:rgba(22,16,40,.72);
  --bg-float-strong:rgba(20,14,38,.92);
  --text-1:#F2EEFF;
  --text-2:#B9B0D6;
  --text-3:#8B83A8;
  --text-inv:#FFFFFF;
  --ok:#22E0C8;
  --warn:#FFB020;
  --err:#FF5D73;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --light-bg:#F6F3FF;
  --light-card:#FFFFFF;
  --light-line:rgba(13,9,24,.08);
  --light-text:#1B1430;
  --light-text-2:#4A4166;
  --r-card:18px;
  --r-lg:24px;
  --r-pill:999px;
  --r-badge:8px;
  --r-img:14px;
  --sh-card:0 8px 24px rgba(123,59,255,.16);
  --sh-hover:0 16px 40px rgba(123,59,255,.28);
  --tr:200ms ease;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Barlow","Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-base);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.02em;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
figure{margin:0;}
strong{font-weight:600;color:var(--text-1);}
::selection{background:rgba(123,59,255,.45);color:#fff;}

.container{width:100%;max-width:100%;margin:0 auto;padding:0 32px;}
@media (min-width:992px){.container{max-width:960px;}}
@media (min-width:1200px){.container{max-width:1200px;}}
@media (min-width:1440px){.container{max-width:1280px;}}
@media (max-width:520px){.container{padding:0 18px;}}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:18px;left:0;right:0;
  z-index:120;
  display:flex;
  justify-content:center;
  padding:0 16px;
  transition:top var(--tr);
}
.nav-pill{
  width:min(1100px,92vw);
  height:60px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 10px 0 16px;
  border-radius:var(--r-pill);
  background:var(--bg-float);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line-strong);
  box-shadow:0 10px 30px rgba(0,0,0,.38);
  transition:height var(--tr),background var(--tr),box-shadow var(--tr);
}
body.is-scrolled .nav-pill{height:54px;background:var(--bg-float-strong);box-shadow:0 12px 34px rgba(0,0,0,.5);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(135deg,var(--c-primary),#4B1FCF);
  color:#fff;font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.04em;
  box-shadow:0 6px 18px rgba(123,59,255,.4);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;}
.nav-link{
  display:inline-block;
  padding:9px 16px;
  border-radius:var(--r-pill);
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background var(--tr),color var(--tr);
}
.nav-link:hover{background:rgba(123,59,255,.16);color:var(--text-1);}
.nav-link.is-active{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(123,59,255,.36);}
.nav-link:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:50%;
  align-items:center;justify-content:center;
  flex-direction:column;
  gap:4px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--text-1);transition:transform var(--tr),opacity var(--tr);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:transform var(--tr),background var(--tr),box-shadow var(--tr),border-color var(--tr),color var(--tr);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 26px rgba(123,59,255,.34);}
.btn-primary:hover{background:var(--c-primary-hi);transform:translateY(-2px);box-shadow:0 14px 34px rgba(123,59,255,.46);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(123,59,255,.3);}
.btn-ghost{border-color:rgba(255,255,255,.24);color:var(--text-1);background:rgba(123,59,255,.06);}
.btn-ghost:hover{background:rgba(123,59,255,.16);border-color:rgba(123,59,255,.55);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:110;
  background:rgba(11,7,22,.97);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  display:flex;flex-direction:column;
  padding:100px 24px 32px;
  transform:translateY(-102%);
  transition:transform 320ms cubic-bezier(.32,.72,.28,1);
}
.drawer.is-open{transform:translateY(0);}
.drawer-link{
  display:flex;align-items:center;
  height:52px;
  padding:0 18px;
  border-radius:14px;
  font-size:17px;
  color:var(--text-2);
  border:1px solid transparent;
}
.drawer-link:hover,.drawer-link:focus-visible{background:rgba(123,59,255,.14);color:var(--text-1);}
.drawer-link.is-active{background:var(--c-primary);color:#fff;box-shadow:0 10px 24px rgba(123,59,255,.32);}
.drawer-cta{margin-top:auto;width:100%;}
@media (min-width:992px){.drawer{display:none;}}

/* ---------- 首屏 ---------- */
.page-hero{position:relative;overflow:hidden;padding:152px 0 84px;}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,9,24,.78) 0%,rgba(13,9,24,.9) 55%,var(--bg-base) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-2);transition:color var(--tr);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .current{color:var(--text-1);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(34,224,200,.1);
  border:1px solid rgba(34,224,200,.32);
  color:var(--c-accent);
  font-size:12.5px;letter-spacing:.06em;
  margin-bottom:20px;
}
.hero-title{
  font-size:clamp(28px,4.6vw,52px);
  line-height:1.25;
  font-weight:800;
  margin-bottom:20px;
}
.hero-lead{font-size:16.5px;color:var(--text-2);max-width:36em;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;}
.stat{
  flex:1 1 120px;
  padding:16px 18px;
  border-radius:var(--r-card);
  background:rgba(27,20,48,.72);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
}
.stat-num{display:block;font-family:var(--font-num);font-size:28px;font-weight:700;line-height:1.15;color:var(--text-1);}
.stat-num::after{content:'';display:block;width:24px;height:3px;border-radius:3px;margin-top:8px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));}
.stat-label{display:block;margin-top:6px;font-size:13px;color:var(--text-3);}
.hero-figure{position:relative;}
.hero-figure img{width:100%;border-radius:var(--r-lg);border:1px solid var(--line-strong);box-shadow:0 24px 60px rgba(0,0,0,.5);}
.hero-badge{
  position:absolute;left:20px;bottom:-16px;
  padding:9px 18px;
  border-radius:var(--r-pill);
  background:rgba(13,9,24,.9);
  border:1px solid rgba(255,154,60,.5);
  color:var(--c-warm);
  font-size:13px;letter-spacing:.04em;
  box-shadow:0 12px 30px rgba(0,0,0,.45);
}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;position:relative;}
.block + .block{margin-top:88px;}
.block-title{font-size:clamp(22px,2.6vw,30px);margin-bottom:16px;}
.block-sub{color:var(--text-2);font-size:15.5px;max-width:42em;}
.block-head{margin-bottom:36px;}
.guide-layout{display:grid;grid-template-columns:minmax(0,1fr) 262px;gap:48px;align-items:start;}

/* ---------- 侧边目录 ---------- */
.toc{position:sticky;top:110px;padding:22px 20px;border-radius:var(--r-card);background:rgba(27,20,48,.66);border:1px solid var(--line);box-shadow:var(--sh-card);}
.toc-title{font-size:13px;letter-spacing:.1em;color:var(--text-3);margin-bottom:14px;}
.toc-list li + li{margin-top:2px;}
.toc-link{
  display:block;
  padding:9px 12px;
  border-radius:12px;
  font-size:14px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:background var(--tr),color var(--tr),border-color var(--tr);
}
.toc-link:hover{background:rgba(123,59,255,.14);color:var(--text-1);}
.toc-link.is-current{background:rgba(123,59,255,.18);border-left-color:var(--c-primary);color:var(--text-1);}
.toc-cta{width:100%;margin-top:18px;}

/* ---------- 第一步：图文 ---------- */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;align-items:center;}
.split-media img{width:100%;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-card);}
.feature-list{margin-top:24px;display:grid;gap:16px;}
.feature-list li{display:grid;grid-template-columns:14px 1fr;gap:14px;align-items:start;}
.feature-list .dot{
  width:12px;height:12px;margin-top:8px;border-radius:4px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  box-shadow:0 0 14px rgba(123,59,255,.6);
}
.feature-list strong{display:block;font-size:16px;margin-bottom:2px;}
.feature-list p{margin:0;font-size:14.5px;color:var(--text-2);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:8px;}
.timeline::before{
  content:'';position:absolute;left:31px;top:18px;bottom:18px;width:2px;
  background:linear-gradient(180deg,var(--c-primary),rgba(34,224,200,.5),rgba(34,224,200,0));
}
.step{position:relative;display:grid;grid-template-columns:64px minmax(0,1fr);gap:26px;padding-bottom:34px;}
.step:last-child{padding-bottom:0;}
.step-num{
  width:64px;height:64px;
  display:flex;align-items:center;justify-content:center;
  border-radius:20px;
  font-family:var(--font-num);font-size:20px;font-weight:700;
  background:var(--bg-card);
  border:1px solid rgba(123,59,255,.45);
  color:var(--text-1);
  box-shadow:0 8px 22px rgba(123,59,255,.22);
  position:relative;z-index:2;
}
.step-card{
  padding:22px 24px;
  border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(27,20,48,.92),rgba(22,16,40,.92));
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(123,59,255,.4);}
.step-title{font-size:19px;margin-bottom:8px;color:var(--text-1);}
.step-text{font-size:15px;color:var(--text-2);margin:0 0 14px;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  padding:5px 12px;
  border-radius:var(--r-badge);
  font-size:12.5px;
  background:rgba(34,224,200,.1);
  border:1px solid rgba(34,224,200,.3);
  color:var(--c-accent);
}
.tag.tag-warm{background:rgba(255,154,60,.12);border-color:rgba(255,154,60,.38);color:var(--c-warm);}

/* ---------- 失误对照 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{padding:24px;border-radius:var(--r-card);border:1px solid var(--line);background:rgba(27,20,48,.66);}
.compare-col-bad{border-color:rgba(255,93,115,.32);}
.compare-col-good{border-color:rgba(34,224,200,.32);box-shadow:0 8px 24px rgba(34,224,200,.12);}
.compare-head{display:flex;align-items:center;gap:10px;font-size:16px;margin-bottom:16px;}
.compare-head .dot{width:10px;height:10px;border-radius:50%;}
.compare-col-bad .dot{background:var(--err);box-shadow:0 0 12px rgba(255,93,115,.8);}
.compare-col-good .dot{background:var(--ok);box-shadow:0 0 12px rgba(34,224,200,.8);}
.compare-list li{display:grid;grid-template-columns:20px 1fr;gap:10px;font-size:15px;color:var(--text-2);padding:10px 0;border-top:1px solid var(--line);}
.compare-list li:first-child{border-top:0;}
.compare-list .mark{font-family:var(--font-num);line-height:1.7;}
.compare-col-bad .mark{color:var(--err);}
.compare-col-good .mark{color:var(--ok);}

/* ---------- 节奏进度卡 ---------- */
.rhythm-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.meter-card{padding:22px;border-radius:var(--r-card);background:rgba(27,20,48,.8);border:1px solid var(--line);box-shadow:var(--sh-card);transition:transform var(--tr),box-shadow var(--tr);}
.meter-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.meter-name{font-size:15.5px;margin-bottom:4px;}
.meter-tip{font-size:13px;color:var(--text-3);margin-bottom:16px;}
.meter{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.1);overflow:hidden;}
.meter-fill{
  height:100%;border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  animation:meterGrow 600ms ease forwards;
}
.meter-value{display:block;margin-top:10px;font-family:var(--font-num);font-size:14px;color:var(--text-2);}
@keyframes meterGrow{from{width:0;}to{width:var(--w);}}
.chip-title{margin:34px 0 14px;font-size:15px;color:var(--text-2);}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;}
.chip{padding:8px 16px;border-radius:var(--r-pill);font-size:13.5px;background:rgba(123,59,255,.12);border:1px solid rgba(123,59,255,.32);color:var(--text-1);transition:background var(--tr);}
.chip:hover{background:rgba(123,59,255,.24);}

/* ---------- 检查清单 ---------- */
.checklist{display:grid;gap:14px;}
.check-item{
  display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:16px;align-items:center;
  padding:18px 22px;border-radius:var(--r-card);
  background:rgba(27,20,48,.7);border:1px solid var(--line);
  transition:border-color var(--tr),transform var(--tr);
}
.check-item:hover{transform:translateY(-2px);border-color:rgba(123,59,255,.36);}
.check-icon{
  width:36px;height:36px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:15px;
}
.check-item.is-done .check-icon{background:rgba(34,224,200,.14);color:var(--ok);border:1px solid rgba(34,224,200,.4);}
.check-item.is-doing .check-icon{background:rgba(123,59,255,.18);color:#C9A9FF;border:1px solid rgba(123,59,255,.5);}
.check-item.is-todo .check-icon{background:rgba(255,255,255,.05);color:var(--text-3);border:1px solid var(--line-strong);}
.check-text{font-size:15.5px;}
.check-note{font-size:13px;color:var(--text-3);margin-top:2px;}
.state-badge{
  padding:5px 13px;border-radius:var(--r-pill);font-size:12.5px;white-space:nowrap;
}
.is-done .state-badge{background:rgba(34,224,200,.14);color:var(--ok);border:1px solid rgba(34,224,200,.4);}
.is-doing .state-badge{background:rgba(123,59,255,.18);color:#C9A9FF;border:1px solid rgba(123,59,255,.5);}
.is-todo .state-badge{background:rgba(255,255,255,.05);color:var(--text-3);border:1px solid var(--line-strong);}

/* ---------- FAQ 浅色区 ---------- */
.section-light{background:var(--light-bg);color:var(--light-text);}
.section-light .block-title{color:var(--light-text);}
.section-light .block-sub{color:var(--light-text-2);}
.section-light .eyebrow{background:rgba(123,59,255,.12);border-color:rgba(123,59,255,.28);color:#5A22D6;}
.faq-wrap{max-width:900px;}
.faq-item{
  background:var(--light-card);
  border:1px solid var(--light-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:0 8px 24px rgba(75,45,160,.08);
  transition:border-color var(--tr),box-shadow var(--tr);
}
.faq-item + .faq-item{margin-top:14px;}
.faq-item.is-open{border-color:rgba(123,59,255,.42);box-shadow:0 14px 34px rgba(123,59,255,.16);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;padding:20px 24px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--light-text);
}
.faq-q:focus-visible{outline:2px solid var(--c-primary);outline-offset:-4px;border-radius:var(--r-card);}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--c-primary);border-radius:2px;transition:transform var(--tr);}
.faq-icon::before{top:9px;left:0;width:20px;height:2px;}
.faq-icon::after{top:0;left:9px;width:2px;height:20px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms ease;}
.faq-a p{padding:0 24px 22px;margin:0;font-size:15.5px;color:var(--light-text-2);line-height:1.85;}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:56px 48px;
  background:linear-gradient(120deg,#1B1430 0%,#241640 48%,#160E2E 100%);
  border:1px solid rgba(123,59,255,.34);
  box-shadow:0 24px 60px rgba(0,0,0,.45);
}
.cta-band::after{
  content:'';position:absolute;top:-60%;left:-10%;
  width:60%;height:220%;
  background:linear-gradient(90deg,rgba(123,59,255,0),rgba(123,59,255,.28),rgba(34,224,200,.14),rgba(123,59,255,0));
  transform:rotate(18deg);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;max-width:720px;}
.cta-inner h2{font-size:clamp(21px,2.6vw,30px);margin-bottom:14px;}
.cta-inner p{color:var(--text-2);font-size:15.5px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0A0714;border-top:1px solid var(--line);padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-about p{font-size:14.5px;color:var(--text-3);line-height:1.85;margin:0;max-width:34em;}
.footer-col h3{font-size:14px;letter-spacing:.08em;color:var(--text-1);margin-bottom:16px;}
.footer-col ul li + li{margin-top:10px;}
.footer-col a{font-size:14.5px;color:var(--text-3);transition:color var(--tr);}
.footer-col a:hover{color:var(--c-accent);}
.footer-contact li{font-size:14.5px;color:var(--text-3);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:22px 0 28px;
  border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .hero-inner{gap:44px;}
}
@media (max-width:1199px){
  .section{padding:72px 0;}
  .block + .block{margin-top:72px;}
  .guide-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc{display:none;}
  .hero-title{font-size:clamp(26px,4.2vw,42px);}
}
@media (max-width:991px){
  .site-header{top:12px;}
  .nav-menu{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-right .btn-sm{display:none;}
  .section{padding:56px 0;}
  .block + .block{margin-top:56px;}
  .page-hero{padding:126px 0 64px;}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:36px;}
  .hero-figure{max-width:520px;}
  .split{grid-template-columns:minmax(0,1fr);gap:28px;}
  .compare-grid{grid-template-columns:minmax(0,1fr);}
  .rhythm-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);}
  .cta-band{padding:44px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .section{padding:48px 0;}
  .block + .block{margin-top:48px;}
  .step{grid-template-columns:52px minmax(0,1fr);gap:18px;}
  .step-num{width:52px;height:52px;border-radius:16px;font-size:17px;}
  .timeline::before{left:25px;}
  .rhythm-grid{grid-template-columns:minmax(0,1fr);}
  .check-item{grid-template-columns:36px minmax(0,1fr);gap:14px;padding:16px 18px;}
  .state-badge{grid-column:2;justify-self:start;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .page-hero{padding:112px 0 52px;}
  .hero-actions .btn{width:100%;}
  .stat{flex:1 1 100%;}
  .faq-q{padding:17px 18px;font-size:15.5px;}
  .faq-a p{padding:0 18px 20px;}
  .cta-band{padding:34px 22px;border-radius:var(--r-card);}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .meter-fill{width:var(--w);}
}