/* roulang page: index */
:root{
  --ink-900:#0D0820;
  --ink-800:#171030;
  --violet-700:#3A2470;
  --violet-500:#5B3FA8;
  --aurora-500:#1FC7B4;
  --star-400:#FFC24A;
  --moon-50:#F7F5FC;
  --moon-100:#EFEBF8;
  --line:#E5E0F2;
  --text-1:#1B1533;
  --text-2:#565070;
  --text-3:#8B85A3;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:8px;
  --r-pill:999px;
  --shadow-1:0 10px 30px rgba(28,17,64,.08);
  --shadow-2:0 18px 40px rgba(28,17,64,.14);
  --container:1200px;
  --grad-main:linear-gradient(120deg,#3A2470 0%,#5B3FA8 55%,#1FC7B4 100%);
  --line-dark:rgba(255,255,255,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text-1);background:#fff;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease-out}
button{font:inherit;cursor:pointer;border:none;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.27;letter-spacing:-.2px}
p{margin:0}
strong{font-weight:600}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--violet-500);outline-offset:2px;box-shadow:0 0 0 3px rgba(58,36,112,.15);border-radius:6px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;letter-spacing:.2px;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--star-400);color:var(--ink-900);box-shadow:0 8px 20px rgba(255,194,74,.28)}
.btn-primary:hover{background:#FFD16C;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,194,74,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-outline{background:#fff;border-color:#CFC7E6;color:var(--violet-700)}
.btn-outline:hover{border-color:var(--violet-500);color:var(--violet-500);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--violet-500)}
.link-more i{font-size:12px;transition:transform .18s ease-out}
.link-more:hover{color:var(--violet-700)}
.link-more:hover i{transform:translateX(3px)}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--r-sm);background:#F0EAFB;color:var(--violet-700);
  font-size:12px;font-weight:500;letter-spacing:.2px;
}
.tag-aurora{background:rgba(31,199,180,.12);color:#12897C}
.badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 14px;border-radius:var(--r-sm);background:#F0EAFB;
}
.badge .badge-num{font-size:20px;line-height:1.1;color:var(--violet-700);font-variant-numeric:tabular-nums;font-weight:700}
.badge .badge-txt{font-size:12px;color:var(--text-2);line-height:1.3}
.badge-dark{background:rgba(255,255,255,.08);border:1px solid var(--line-dark)}
.badge-dark .badge-num{color:var(--star-400)}
.badge-dark .badge-txt{color:rgba(255,255,255,.72)}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;height:72px;
  background:rgba(13,8,32,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  transition:height .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled{height:64px;background:var(--ink-900);box-shadow:0 12px 30px rgba(13,8,32,.4)}
.header-inner{display:flex;align-items:center;gap:28px;height:100%}
.logo{display:flex;align-items:center;gap:9px;color:#fff;flex-shrink:0}
.logo-mark{
  width:30px;height:30px;border-radius:50%;flex-shrink:0;
  background:var(--grad-main);display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;line-height:1;box-shadow:0 0 0 1px rgba(255,255,255,.25) inset;
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;flex:1}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 13px;font-size:15px;font-weight:500;
  color:rgba(255,255,255,.8);border-radius:var(--r-sm);
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;
  background:var(--star-400);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;border-radius:2px;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:44px;height:44px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.2);
  transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.icon-btn:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.2);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-overlay{
  position:fixed;inset:0;background:rgba(13,8,32,.6);z-index:200;
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;
}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(330px,88vw);z-index:210;
  background:rgba(13,8,32,.96);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transform:translateX(100%);transition:transform .28s ease-out;
  padding:22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line-dark);margin-bottom:10px}
.drawer-title{color:#fff;font-size:16px;font-weight:700}
.drawer-close{width:40px;height:40px;border-radius:50%;color:#fff;border:1px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center}
.drawer-link{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:var(--r-md);color:rgba(255,255,255,.82);font-size:15px}
.drawer-link:hover,.drawer-link.is-active{background:rgba(255,255,255,.1);color:#fff}
.drawer-cta{margin-top:14px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink-900);padding:150px 0 150px;min-height:620px;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.95}
.hero-overlay{position:absolute;inset:0;background:var(--grad-main);opacity:.72}
.hero-overlay::after{
  content:"";position:absolute;inset:0;opacity:.08;
  background-image:radial-gradient(rgba(255,255,255,.85) 1px,transparent 1px);
  background-size:32px 32px;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;width:100%}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:13px;letter-spacing:.4px;
}
.hero-eyebrow i{color:var(--star-400);font-size:12px}
.hero h1{
  font-size:clamp(28px,3.4vw,48px);line-height:1.2;color:#fff;letter-spacing:-.5px;
  max-width:12em;
}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);max-width:36em}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px}
.hero-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 30px 60px rgba(9,5,24,.5);
  background:rgba(255,255,255,.06);
}
.hero-card img{width:100%;height:320px;object-fit:cover}
.hero-card-body{position:absolute;left:0;right:0;bottom:0;padding:20px 22px;background:linear-gradient(180deg,rgba(13,8,32,0) 0%,rgba(13,8,32,.88) 70%)}
.hero-card-body h2{font-size:17px;color:#fff;font-weight:600}
.hero-card-body p{margin-top:6px;font-size:13px;color:rgba(255,255,255,.72)}

/* ---------- 价值条 ---------- */
.value-strip{position:relative;z-index:6;margin-top:-64px}
.value-strip-inner{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);padding:32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
}
.value-item{display:flex;flex-direction:column;gap:12px;padding-right:8px}
.value-icon{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#EFE7FC 0%,#E3F6F3 100%);color:var(--violet-700);font-size:17px;
}
.value-item h3{font-size:17px;line-height:1.4}
.value-item p{font-size:13px;line-height:1.7;color:var(--text-2)}
.value-item .badge{align-self:flex-start;margin-top:auto}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--moon-50)}
.section-dark{background:var(--ink-900);color:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.4vw,30px);line-height:1.3}
.section-head .section-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:44em;line-height:1.8}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head .section-desc{color:rgba(255,255,255,.7)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--violet-500);letter-spacing:1px;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--star-400)}

/* ---------- 功能分组 ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.feature-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;
}
.feature-main-img{position:relative;height:260px;overflow:hidden}
.feature-main-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.feature-main:hover .feature-main-img img{transform:scale(1.03)}
.feature-main-body{padding:28px 30px 30px;display:flex;flex-direction:column;gap:16px;flex:1}
.feature-main-body h3{font-size:22px}
.feature-main-body>p{font-size:15px;color:var(--text-2);line-height:1.8}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:4px}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.check-list li i{color:var(--aurora-500);font-size:13px;margin-top:6px;flex-shrink:0}
.feature-side{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.feature-mini{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 22px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:10px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.feature-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6CCEC}
.feature-mini .mini-icon{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:#F0EAFB;color:var(--violet-500);font-size:16px;
}
.feature-mini h3{font-size:16px;line-height:1.45}
.feature-mini p{font-size:13px;color:var(--text-2);line-height:1.7}
.feature-mini .link-more{margin-top:auto;padding-top:6px}

/* ---------- 使用场景 ---------- */
.scene-row{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;padding:44px 0}
.scene-row+.scene-row{border-top:1px solid var(--line)}
.scene-row.reverse{grid-template-columns:7fr 5fr}
.scene-row.reverse .scene-media{order:2}
.scene-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1)}
.scene-media img{width:100%;height:290px;object-fit:cover}
.scene-num{
  display:inline-flex;align-items:baseline;gap:10px;font-size:34px;font-weight:700;color:var(--violet-500);
  font-variant-numeric:tabular-nums;line-height:1;letter-spacing:-1px;
}
.scene-num span{font-size:13px;font-weight:500;color:var(--text-3);letter-spacing:0}
.scene-body h3{font-size:22px;margin:14px 0 14px}
.scene-body p{font-size:15px;color:var(--text-2);line-height:1.85;margin-bottom:12px}
.scene-body .scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 20px}

/* ---------- 案例 ---------- */
.case-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;margin-bottom:24px;
  border:1px solid rgba(255,255,255,.12);min-height:340px;display:flex;align-items:flex-end;
}
.case-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.case-main-layer{
  position:relative;z-index:2;width:100%;padding:36px;
  background:linear-gradient(180deg,rgba(58,36,112,.1) 0%,rgba(23,16,48,.94) 78%);
}
.case-main-layer h3{font-size:22px;color:#fff;max-width:24em}
.case-main-layer p{margin-top:12px;font-size:14px;color:rgba(255,255,255,.76);max-width:46em;line-height:1.8}
.case-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.case-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:16px;box-shadow:var(--shadow-1);align-items:center;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.case-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.case-item img{width:96px;height:76px;object-fit:cover;border-radius:var(--r-md);flex-shrink:0}
.case-item h4{font-size:15px;line-height:1.5}
.case-item p{font-size:13px;color:var(--text-2);line-height:1.7;margin-top:6px}

/* ---------- 方案与权益 ---------- */
.plan-grid{display:grid;grid-template-columns:6fr 6fr;gap:24px;align-items:start}
.plan-main{
  position:relative;background:#fff;border:2px solid var(--violet-500);border-radius:var(--r-lg);
  box-shadow:var(--shadow-2);overflow:hidden;padding:0 32px 32px;
}
.plan-main::before{content:"";display:block;height:6px;margin:0 -32px 28px;background:var(--grad-main)}
.plan-label{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-sm);background:var(--star-400);color:var(--ink-900);font-size:12px;font-weight:600;margin-bottom:14px}
.plan-main h3{font-size:22px}
.plan-main .plan-note{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.8}
.plan-main .check-list{margin:22px 0 26px}
.plan-main .check-list li{font-size:14px}
.plan-side{display:grid;gap:24px}
.plan-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--shadow-1);transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.plan-card h4{font-size:17px}
.plan-card p{margin-top:8px;font-size:13px;color:var(--text-2);line-height:1.75}
.plan-card .tag{margin-bottom:12px}
.compare{
  margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.compare-head,.compare-row{display:grid;grid-template-columns:2fr 1fr 1fr;align-items:center}
.compare-head{padding:16px 24px;background:var(--moon-100);font-size:13px;font-weight:600;color:var(--violet-700)}
.compare-row{padding:14px 24px;border-top:1px solid var(--line);font-size:14px;color:var(--text-2)}
.compare-row:nth-child(even){background:var(--moon-50)}
.compare-row span:first-child{color:var(--text-1)}
.compare-row .yes{color:var(--aurora-500)}
.compare-row .no{color:var(--text-3)}

/* ---------- 最新信息 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.filter-chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text-2);
  transition:all .18s ease-out;
}
.filter-chip:hover{border-color:var(--violet-500);color:var(--violet-500)}
.filter-chip.is-active{background:var(--violet-700);border-color:var(--violet-700);color:#fff}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.news-thumb{height:168px;overflow:hidden;background:var(--moon-100)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a:hover{color:var(--violet-500)}
.news-excerpt{
  font-size:13px;color:var(--text-2);line-height:1.72;
  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;
}
.news-time{font-size:13px;color:var(--text-3);display:inline-flex;align-items:center;gap:6px}
.empty-state{
  grid-column:1 / -1;min-height:220px;border:1px dashed #D6CCEC;border-radius:var(--r-lg);
  background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:36px;text-align:center;
}
.empty-state .empty-line{width:120px;height:1px;background:repeating-linear-gradient(90deg,var(--violet-500) 0 6px,transparent 6px 12px);opacity:.5}
.empty-state p{font-size:15px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item[open]{border-color:#D6CCEC;box-shadow:var(--shadow-1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:500;color:var(--text-1);cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:22px;height:22px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--violet-500);border-radius:2px;
  transition:transform .22s ease-out,background-color .22s ease-out;
}
.faq-icon::before{left:3px;right:3px;top:10px;height:2px}
.faq-icon::after{top:3px;bottom:3px;left:10px;width:2px}
.faq-item[open] .faq-icon::after{transform:scaleY(0)}
.faq-item[open] .faq-icon::before{background:var(--star-400)}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2)}
.faq-side{
  background:var(--ink-800);border-radius:var(--r-lg);padding:28px;color:#fff;
  border:1px solid rgba(255,255,255,.12);
}
.faq-side h3{font-size:18px;color:#fff}
.faq-side p{margin-top:12px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72)}
.faq-side .btn{margin-top:22px;width:100%}
.faq-side ul{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.faq-side ul li{font-size:13px;color:rgba(255,255,255,.66);display:flex;gap:8px;align-items:center}
.faq-side ul li i{color:var(--star-400);font-size:11px}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-900);
  padding:64px 0;
}
.cta-band::before{content:"";position:absolute;inset:0;background:var(--grad-main);opacity:.7}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.07;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:32px 32px;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.2vw,28px);color:#fff;line-height:1.35}
.cta-inner p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.78)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.7);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-logo{display:flex;align-items:center;gap:9px;color:#fff;font-size:17px;font-weight:700}
.footer-brand p{font-size:13px;line-height:1.85;color:rgba(255,255,255,.62);max-width:32em}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.72);font-size:14px;
  transition:all .18s ease-out;
}
.footer-social a:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:15px;color:var(--star-400);margin-bottom:18px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.68);display:flex;gap:10px;align-items:flex-start;line-height:1.7}
.footer-contact li i{color:var(--aurora-500);font-size:13px;margin-top:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .hero-inner{gap:40px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn{display:none}
  .hero{padding:130px 0 120px;min-height:auto}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero h1{max-width:none;font-size:34px}
  .hero-card img{height:260px}
  .value-strip{margin-top:-48px}
  .value-strip-inner{grid-template-columns:1fr 1fr;gap:24px;padding:26px}
  .section{padding:64px 0}
  .feature-grid{grid-template-columns:1fr}
  .scene-row,.scene-row.reverse{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .scene-row.reverse .scene-media{order:0}
  .case-row{grid-template-columns:1fr}
  .plan-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-bottom:36px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .logo-text{font-size:15px}
  .hero{padding:118px 0 108px}
  .hero h1{font-size:28px;line-height:1.32}
  .hero-sub{font-size:15px}
  .hero-btns .btn{flex:1 1 auto}
  .hero-card img{height:210px}
  .value-strip-inner{grid-template-columns:1fr;padding:22px}
  .section{padding:48px 0}
  .section-head{margin-bottom:30px}
  .feature-side{grid-template-columns:1fr}
  .feature-main-img{height:190px}
  .feature-main-body{padding:22px}
  .scene-media img{height:210px}
  .scene-num{font-size:28px}
  .case-main-layer{padding:24px}
  .case-item img{width:80px;height:68px}
  .compare-head,.compare-row{grid-template-columns:1.6fr .8fr .8fr;padding:12px 16px;font-size:13px}
  .news-grid{grid-template-columns:1fr}
  .faq-item summary{padding:16px;font-size:15px}
  .faq-answer{padding:0 16px 18px;font-size:14px}
  .cta-band{padding:48px 0}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px}
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category1 */
:root{
  --ink-900:#0D0820;
  --ink-800:#171030;
  --violet-700:#3A2470;
  --violet-500:#5B3FA8;
  --aurora-500:#1FC7B4;
  --star-400:#FFC24A;
  --moon-50:#F7F5FC;
  --moon-100:#EFEBF8;
  --line:#E5E0F2;
  --text-1:#1B1533;
  --text-2:#565070;
  --text-3:#8B85A3;
  --grad-main:linear-gradient(120deg,var(--violet-700) 0%,var(--violet-500) 52%,var(--aurora-500) 100%);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:14px;
  --radius-xs:8px;
  --shadow-card:0 10px 30px rgba(28,17,64,.08);
  --shadow-card-hover:0 18px 40px rgba(28,17,64,.14);
  --container:1200px;
  --nav-h-desktop:72px;
  --nav-h-mobile:60px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:28px;color:var(--text-1);
  background:#fff;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--text-1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--violet-500);outline-offset:2px;box-shadow:0 0 0 3px rgba(58,36,112,.15)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--moon{background:var(--moon-50)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--violet-500);font-weight:600;margin-bottom:12px;text-transform:uppercase}
.section-head h2{font-size:30px;line-height:38px;margin-bottom:14px}
.section-head p{font-size:15px;line-height:26px;color:var(--text-2)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--nav-h-desktop);
  background:rgba(13,8,32,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 8px 24px rgba(9,5,26,.18);
  transition:background .18s ease-out,height .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled{
  background:var(--ink-900);
  height:64px;
  box-shadow:0 10px 30px rgba(9,5,26,.35);
}
.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 32px;
  height:100%;display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad-main);color:#fff;font-size:14px;flex:0 0 34px;
  box-shadow:0 6px 16px rgba(91,63,168,.45);
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;min-width:0}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;font-size:15px;font-weight:500;
  color:rgba(255,255,255,.78);border-radius:999px;white-space:nowrap;
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--star-400);transform:scaleX(0);transform-origin:left center;transition:transform .18s ease-out;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.06);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .18s ease-out,transform .18s ease-out;
}
.icon-btn:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;cursor:pointer;
  font-size:15px;font-weight:500;letter-spacing:.2px;line-height:1;
  padding:0 24px;height:44px;transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--star-400);color:var(--ink-900);box-shadow:0 8px 20px rgba(255,194,74,.28)}
.btn-primary:hover{transform:translateY(-2px);background:#F2B134;box-shadow:0 12px 26px rgba(255,194,74,.36)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.38)}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(255,255,255,.1)}
.btn-outline{background:transparent;color:var(--violet-700);border-color:#CFC7E6}
.btn-outline:hover{transform:translateY(-2px);border-color:var(--violet-500);background:var(--moon-50)}
.btn-sm{height:36px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none;box-shadow:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.06);color:#fff;cursor:pointer;align-items:center;justify-content:center;font-size:16px;
}
.drawer-mask{position:fixed;inset:0;background:rgba(9,5,26,.5);opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s;z-index:109}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:290px;max-width:84vw;z-index:110;
  background:rgba(13,8,32,.96);border-left:1px solid rgba(255,255,255,.14);
  transform:translateX(100%);transition:transform .24s ease-out;
  padding:22px 20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;color:#fff}
.drawer-head .close-btn{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#fff;cursor:pointer}
.drawer a.drawer-link{
  display:block;padding:13px 14px;border-radius:12px;color:rgba(255,255,255,.82);font-size:15px;font-weight:500;
  transition:background .18s ease-out,color .18s ease-out;
}
.drawer a.drawer-link:hover{background:rgba(255,255,255,.1);color:#fff}
.drawer a.drawer-link.is-active{background:rgba(91,63,168,.5);color:#fff}
.drawer .drawer-cta{margin-top:16px}

/* ============ 次级 Hero ============ */
.page-hero{
  position:relative;
  min-height:320px;
  display:flex;align-items:center;
  padding:132px 0 64px;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:var(--grad-main);opacity:.72;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:24px 24px;opacity:.08;
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.crumb .sep{opacity:.6}
.crumb .current{color:var(--star-400)}
.page-hero h1{
  color:#fff;font-size:40px;line-height:48px;letter-spacing:-.01em;max-width:820px;
  margin-bottom:16px;
}
.page-hero .lede{color:rgba(255,255,255,.86);font-size:16px;line-height:28px;max-width:640px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:10px;padding:6px 12px;border-radius:var(--radius-xs);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#fff;
}
.badge i{color:var(--star-400);font-size:13px}
.badge .num{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--star-400);line-height:1}
.badge .txt{font-size:12px;color:rgba(255,255,255,.78)}
.badge--light{background:var(--moon-100);border-color:var(--line);color:var(--text-1)}
.badge--light .num{color:var(--violet-700)}
.badge--light .txt{color:var(--text-2)}

/* ============ 锚点导航 ============ */
.anchor-bar{
  position:sticky;top:64px;z-index:60;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 18px rgba(28,17,64,.05);
}
.anchor-scroll{display:flex;gap:8px;overflow-x:auto;padding:12px 0;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-link{
  flex:0 0 auto;padding:9px 16px;border-radius:999px;font-size:14px;font-weight:500;color:var(--text-2);
  border:1px solid var(--line);background:#fff;transition:all .18s ease-out;
}
.anchor-link:hover{color:var(--violet-700);border-color:#CFC7E6;transform:translateY(-2px)}
.anchor-link.is-active{background:var(--violet-700);border-color:var(--violet-700);color:#fff}

/* ============ 通道列表 ============ */
.channel-list{border-top:1px solid var(--line)}
.channel-item{
  display:grid;grid-template-columns:82px 1fr auto;align-items:center;gap:24px;
  padding:26px 8px;border-bottom:1px solid var(--line);
  transition:background .18s ease-out,transform .18s ease-out;
}
.channel-item:hover{background:var(--moon-50);transform:translateX(4px)}
.channel-num{
  font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--violet-500);
  letter-spacing:.02em;line-height:1;
}
.channel-num span{display:block;font-size:12px;font-weight:500;color:var(--text-3);letter-spacing:.16em;margin-top:6px}
.channel-body h3{font-size:19px;line-height:27px;margin-bottom:6px}
.channel-body p{font-size:14px;line-height:24px;color:var(--text-2);max-width:720px}
.channel-tags{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.tag{
  display:inline-block;padding:4px 12px;border-radius:var(--radius-xs);background:#F0EAFB;color:var(--violet-700);
  font-size:13px;line-height:20px;font-weight:500;
}
.tag--aurora{background:rgba(31,199,180,.12);color:#117C71}
.tag--star{background:rgba(255,194,74,.18);color:#8A5A00}

/* ============ 准备事项 ============ */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.prep-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 24px;
  box-shadow:var(--shadow-card);transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover)}
.prep-card .ico{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--moon-100);color:var(--violet-700);font-size:18px;margin-bottom:18px;
}
.prep-card h3{font-size:18px;line-height:26px;margin-bottom:10px}
.prep-card p{font-size:14px;line-height:25px;color:var(--text-2)}
.prep-media{
  margin-top:32px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);background:var(--moon-100);
}
.prep-media img{width:100%;aspect-ratio:16/7;object-fit:cover}
.prep-media figcaption{font-size:13px;line-height:22px;color:var(--text-3);padding:14px 20px;background:#fff}

/* ============ 排查流程 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 22px 26px;box-shadow:var(--shadow-card);transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover)}
.step-no{
  width:46px;height:46px;border-radius:999px;border:2px solid #CFC7E6;color:var(--violet-700);
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:18px;background:var(--moon-50);
}
.step-card h3{font-size:17px;line-height:25px;margin-bottom:8px}
.step-card p{font-size:14px;line-height:24px;color:var(--text-2)}

/* ============ 提示卡 ============ */
.notice{
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;
  background:var(--moon-50);border:1px solid var(--line);border-left:4px solid var(--star-400);
  border-radius:var(--radius-md);padding:26px 28px;margin-top:36px;
}
.notice .notice-ico{
  width:56px;height:56px;border-radius:16px;background:rgba(255,194,74,.2);color:#8A5A00;
  display:flex;align-items:center;justify-content:center;font-size:20px;
}
.notice h3{font-size:18px;line-height:26px;margin-bottom:8px}
.notice p{font-size:14px;line-height:25px;color:var(--text-2)}
.notice ul{margin-top:12px;display:grid;gap:8px}
.notice li{position:relative;padding-left:20px;font-size:14px;line-height:24px;color:var(--text-2)}
.notice li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;background:var(--aurora-500);border-radius:2px}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start}
.faq-list{display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;transition:box-shadow .18s ease-out}
.faq-item.is-open{box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:500;line-height:24px;color:var(--text-1);
}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--violet-500);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px;transition:transform .22s ease-out}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:26px;color:var(--text-2)}
.faq-side{
  background:linear-gradient(160deg,var(--ink-800),var(--violet-700));border-radius:var(--radius-lg);
  padding:30px 26px;color:#fff;border:1px solid rgba(255,255,255,.12);
}
.faq-side h3{color:#fff;font-size:19px;line-height:27px;margin-bottom:10px}
.faq-side p{font-size:14px;line-height:25px;color:rgba(255,255,255,.8);margin-bottom:20px}
.faq-side .btn{width:100%}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;background-image:linear-gradient(120deg,var(--violet-700) 0%,var(--violet-500) 55%,var(--aurora-500) 100%);
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:26px 26px;opacity:.07;
}
.cta-inner{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:56px 0;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:28px;line-height:36px;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.86);font-size:15px;line-height:26px;max-width:600px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:25px;color:rgba(255,255,255,.66);max-width:340px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{
  width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.8);
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.footer-social a:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:15px;color:var(--star-400);margin-bottom:18px;font-weight:600}
.footer-col ul{display:grid;gap:12px}
.footer-col a{font-size:14px;line-height:22px;color:rgba(255,255,255,.7);transition:color .18s ease-out}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:24px;color:rgba(255,255,255,.7)}
.footer-contact i{color:var(--aurora-500);margin-top:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:13px;line-height:22px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .header-inner{padding:0 24px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn{display:none}
  .section{padding:64px 0}
  .page-hero{padding:110px 0 56px;min-height:280px}
  .page-hero h1{font-size:32px;line-height:42px}
  .prep-grid{grid-template-columns:1fr 1fr}
  .step-grid{grid-template-columns:1fr 1fr}
  .faq-layout{grid-template-columns:1fr}
  .faq-side{margin-top:8px}
  .channel-item{grid-template-columns:64px 1fr;row-gap:14px}
  .channel-item .channel-action{grid-column:2;justify-self:start}
  .anchor-bar{top:60px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .container{padding:0 16px}
  .header-inner{padding:0 16px;gap:12px}
  .brand span:last-child{font-size:15px}
  .page-hero{min-height:240px;padding:96px 0 48px}
  .page-hero h1{font-size:28px;line-height:36px}
  .page-hero .lede{font-size:15px;line-height:26px}
  .section-head h2{font-size:24px;line-height:32px}
  .prep-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .channel-item{grid-template-columns:1fr;gap:12px;padding:22px 4px}
  .channel-item:hover{transform:none}
  .channel-num{font-size:22px;display:flex;align-items:baseline;gap:8px}
  .channel-num span{margin-top:0}
  .notice{grid-template-columns:1fr;padding:22px 20px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0}
  .cta-inner h2{font-size:22px;line-height:30px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column}
  .anchor-scroll{padding:10px 0}
}

/* roulang page: article */
:root{
  --ink-900:#0D0820;--ink-800:#171030;--violet-700:#3A2470;--violet-500:#5B3FA8;
  --aurora-500:#1FC7B4;--star-400:#FFC24A;--moon-50:#F7F5FC;--moon-100:#EFEBF8;
  --line:#E5E0F2;--text-1:#1B1533;--text-2:#565070;--text-3:#8B85A3;
  --r-lg:20px;--r-md:14px;--r-sm:8px;--r-pill:999px;
  --sh-1:0 10px 30px rgba(28,17,64,.08);--sh-2:0 18px 40px rgba(28,17,64,.14);
  --grad-main:linear-gradient(120deg,#3A2470 0%,#5B3FA8 52%,#1FC7B4 100%);
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.7;color:var(--text-1);background:#fff;overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--violet-500);outline-offset:2px;box-shadow:0 0 0 3px rgba(58,36,112,.15)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;height:72px;background:rgba(13,8,32,.42);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid rgba(255,255,255,.14);box-shadow:0 8px 24px rgba(13,8,32,.18);transition:background var(--t),height var(--t),box-shadow var(--t)}
.site-header.is-scrolled{background:var(--ink-900);height:64px;box-shadow:0 14px 34px rgba(13,8,32,.36)}
.header-inner{height:100%;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;white-space:nowrap}
.logo-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--grad-main);color:#fff;font-size:14px;box-shadow:0 6px 16px rgba(58,36,112,.45)}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;font-size:15px;font-weight:500;color:rgba(255,255,255,.82);border-radius:var(--r-pill);transition:color var(--t),background var(--t)}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:10px;height:2px;background:var(--star-400);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px}
.icon-btn{width:44px;height:44px;border-radius:var(--r-pill);display:grid;place-items:center;background:transparent;border:1px solid rgba(255,255,255,.24);color:#fff;cursor:pointer;transition:background var(--t),border-color var(--t),transform var(--t)}
.icon-btn:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.45);transform:translateY(-2px)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.24);border-radius:12px;background:transparent;cursor:pointer;padding:0;place-items:center;gap:4px;flex-direction:column}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-pill);font-size:15px;font-weight:500;letter-spacing:.2px;border:1px solid transparent;cursor:pointer;transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t)}
.btn-primary{background:var(--star-400);color:var(--ink-900);box-shadow:0 8px 20px rgba(255,194,74,.28)}
.btn-primary:hover{background:#ffcd66;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,194,74,.34)}
.btn-ghost{background:transparent;border-color:#CFC7E6;color:var(--text-1)}
.btn-ghost:hover{border-color:var(--violet-500);color:var(--violet-700);transform:translateY(-2px)}
.btn-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.mobile-drawer{position:fixed;top:0;right:0;width:300px;max-width:86vw;height:100%;z-index:120;background:rgba(13,8,32,.96);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);padding:22px;display:flex;flex-direction:column;gap:6px;transform:translateX(102%);transition:transform 260ms ease-out}
.mobile-drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;color:#fff;font-weight:700;margin-bottom:10px}
.drawer-link{display:block;padding:12px;border-radius:12px;font-size:16px;color:rgba(255,255,255,.86)}
.drawer-link:hover{background:rgba(255,255,255,.1);color:#fff}
.drawer-mask{position:fixed;inset:0;background:rgba(13,8,32,.55);opacity:0;visibility:hidden;transition:opacity 220ms ease-out,visibility 220ms ease-out;z-index:110}
.drawer-mask.is-open{opacity:1;visibility:visible}
@media(max-width:1023px){
  .main-nav,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .header-inner{gap:12px}
}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;padding:140px 0 60px;color:#fff;background-image:linear-gradient(120deg,rgba(13,8,32,.94) 0%,rgba(58,36,112,.88) 55%,rgba(31,199,180,.60) 100%),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;overflow:hidden}
.article-hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);background-size:26px 26px;opacity:.5;pointer-events:none}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px}
.breadcrumb a{transition:color var(--t)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--star-400);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-sm);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);font-size:13px;color:#fff;margin-bottom:18px}
.article-title{font-size:40px;line-height:1.22;max-width:900px;margin-bottom:22px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:rgba(255,255,255,.74)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45);display:inline-block}
@media(max-width:1023px){.article-hero{padding:120px 0 48px}.article-title{font-size:32px}}
@media(max-width:639px){.article-hero{padding:104px 0 40px}.article-title{font-size:26px;line-height:1.35}}

/* ---------- 正文布局 ---------- */
.article-section{background:var(--moon-50);padding:56px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:36px}
@media(min-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:48px}}
.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:36px}
@media(max-width:639px){.article-card{padding:20px;border-radius:16px}}

.article-body{max-width:760px;font-size:16px;line-height:1.9;color:#332c4d}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{position:relative;font-size:24px;line-height:1.4;color:var(--text-1);margin:44px 0 18px;padding-left:16px;scroll-margin-top:96px}
.article-body h2::before{content:"";position:absolute;left:0;top:7px;width:3px;height:22px;border-radius:2px;background:var(--star-400)}
.article-body h3{font-size:19px;line-height:1.5;color:var(--violet-700);margin:32px 0 14px;scroll-margin-top:96px}
.article-body h4{font-size:17px;color:var(--text-1);margin:26px 0 12px}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:0;list-style:none}
.article-body li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;background:var(--aurora-500);border-radius:2px}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{content:counter(li);position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:6px;background:#F0EAFB;color:var(--violet-700);font-size:12px;font-weight:700;display:grid;place-items:center;font-variant-numeric:tabular-nums}
.article-body blockquote{margin:0 0 24px;padding:18px 20px;background:var(--moon-50);border-left:3px solid var(--violet-500);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--text-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{width:100%;border-radius:var(--r-md);border:1px solid var(--line);margin:8px 0 10px}
.article-body figure{margin:0 0 24px}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3)}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:15px}
.article-body table th{text-align:left;font-weight:700;color:var(--text-1);padding:12px 14px;border-bottom:1px solid var(--line);background:#fff}
.article-body table td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text-2)}
.article-body table tr:nth-child(even) td{background:var(--moon-50)}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;background:var(--moon-100);color:var(--violet-700);padding:2px 6px;border-radius:6px;font-variant-numeric:tabular-nums}
.article-body a{color:var(--violet-700);border-bottom:1px solid rgba(91,63,168,.35);transition:color var(--t),border-color var(--t)}
.article-body a:hover{color:var(--aurora-500);border-color:var(--aurora-500)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.empty-state{text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--moon-50)}
.empty-state i{font-size:30px;color:var(--violet-500);margin-bottom:14px;display:block}
.empty-state p{font-size:16px;color:var(--text-2);margin:0 0 18px}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-sm);background:#F0EAFB;color:var(--violet-700);font-size:13px;font-weight:500;transition:background var(--t),transform var(--t)}
.tag:hover{background:#e3d7f6;transform:translateY(-2px)}

.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px}
.share-row .share-label{font-size:13px;color:var(--text-3)}
.share-btn{width:40px;height:40px;border-radius:var(--r-pill);display:grid;place-items:center;border:1px solid var(--line);background:#fff;color:var(--text-2);cursor:pointer;transition:color var(--t),border-color var(--t),transform var(--t)}
.share-btn:hover{color:var(--violet-700);border-color:var(--violet-500);transform:translateY(-2px)}

.post-nav{display:grid;grid-template-columns:1fr;gap:16px;margin-top:32px}
@media(min-width:640px){.post-nav{grid-template-columns:1fr 1fr}}
.post-nav-card{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.post-nav-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D9D0EF}
.pn-label{font-size:12px;color:var(--star-400);font-weight:700;letter-spacing:.6px}
.pn-title{font-size:16px;font-weight:700;color:var(--text-1)}
.pn-desc{font-size:13px;color:var(--text-3)}

/* ---------- 相关推荐 ---------- */
.related-section{padding:72px 0 88px;background:#fff}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.3}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--text-2);max-width:560px}
.link-more{font-size:15px;font-weight:500;color:var(--violet-700);display:inline-flex;align-items:center;gap:8px;transition:gap var(--t),color var(--t)}
.link-more:hover{color:var(--aurora-500);gap:12px}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.info-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;transition:transform var(--t),box-shadow var(--t)}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-media{aspect-ratio:16/10;background:var(--moon-100);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;box-shadow:inset 0 0 0 1px rgba(28,17,64,.06);transition:transform 300ms ease-out}
.info-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-cat{align-self:flex-start;display:inline-flex;height:26px;align-items:center;padding:0 10px;border-radius:var(--r-sm);background:#F0EAFB;color:var(--violet-700);font-size:12px;font-weight:500}
.card-title{font-size:17px;line-height:1.45;color:var(--text-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;line-height:1.65;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.card-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}
.card-foot i{margin-right:6px}
.card-foot .go{color:var(--violet-700);font-weight:500}

/* ---------- 侧栏 ---------- */
.side-sticky{display:flex;flex-direction:column;gap:20px}
@media(min-width:1024px){.side-sticky{position:sticky;top:96px}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px}
.side-card h3{font-size:15px;color:var(--text-1);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--star-400)}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:2px;max-height:300px;overflow:auto}
.toc-list a{display:block;font-size:14px;line-height:1.5;color:var(--text-2);padding:8px 10px;border-radius:10px;border-left:2px solid transparent;transition:background var(--t),color var(--t),border-color var(--t)}
.toc-list a:hover{background:var(--moon-100);color:var(--violet-700)}
.toc-list a.is-current{background:#F0EAFB;color:var(--violet-700);border-left-color:var(--star-400);font-weight:500}
.toc-empty{font-size:13px;color:var(--text-3);line-height:1.7}
.rank-list{display:flex;flex-direction:column;gap:4px;list-style:none}
.rank-list a{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.55;color:var(--text-2);padding:9px 8px;border-radius:10px;transition:background var(--t),color var(--t)}
.rank-list a:hover{background:var(--moon-50);color:var(--violet-700)}
.rank-list .num{flex:0 0 20px;height:20px;border-radius:6px;background:#F0EAFB;color:var(--violet-700);font-size:12px;font-weight:700;display:grid;place-items:center;font-variant-numeric:tabular-nums;margin-top:2px}
.side-cta{background:var(--grad-main);color:#fff;border:0}
.side-cta h3{color:#fff}
.side-cta p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.88);margin:0 0 16px}
.side-cta .btn{width:100%}

/* ---------- 底部 CTA ---------- */
.cta-band{background-image:linear-gradient(120deg,rgba(13,8,32,.95),rgba(58,36,112,.9) 50%,rgba(31,199,180,.7)),url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;padding:64px 0;color:#fff}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:28px;line-height:1.35;margin-bottom:10px}
.cta-inner p{margin:0;font-size:15px;color:rgba(255,255,255,.82);max-width:620px}
@media(max-width:639px){.cta-inner h2{font-size:22px}.cta-inner{justify-content:center;text-align:center}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.7);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px}}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:0 0 20px;max-width:340px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.78);transition:background var(--t),color var(--t),transform var(--t)}
.footer-social a:hover{background:rgba(255,255,255,.1);color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:15px;color:var(--star-400);margin-bottom:16px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color var(--t)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.66)}
.footer-contact i{margin-top:4px;color:var(--aurora-500)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:48px;padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--text-3)}

/* roulang page: category2 */
:root{
  --ink-900:#0D0820;
  --ink-800:#171030;
  --violet-700:#3A2470;
  --violet-500:#5B3FA8;
  --aurora-500:#1FC7B4;
  --star-400:#FFC24A;
  --moon-50:#F7F5FC;
  --moon-100:#EFEBF8;
  --line:#E5E0F2;
  --text-1:#1B1533;
  --text-2:#565070;
  --text-3:#8B85A3;
  --grad-main:linear-gradient(120deg,#3A2470 0%,#5B3FA8 55%,#1FC7B4 100%);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow-1:0 10px 30px rgba(28,17,64,.08);
  --shadow-2:0 18px 40px rgba(28,17,64,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:#fff;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:40px;line-height:1.2;font-weight:700;letter-spacing:-.4px}
h2{font-size:30px;line-height:1.28;font-weight:700;letter-spacing:-.2px}
h3{font-size:22px;line-height:1.36;font-weight:700}
p{font-size:16px;line-height:1.8;color:var(--text-2)}
strong{font-weight:600;color:var(--text-1)}
::selection{background:rgba(91,63,168,.16)}
:focus-visible{outline:2px solid var(--violet-500);outline-offset:2px;box-shadow:0 0 0 3px rgba(58,36,112,.15);border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section--moon{background:var(--moon-50)}
.section--tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head p{max-width:640px;margin-top:10px;font-size:15px;color:var(--text-2)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--violet-500);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--star-400);border-radius:2px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:500;letter-spacing:.2px;white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--star-400);color:var(--ink-900);box-shadow:0 10px 24px rgba(255,194,74,.30)}
.btn-primary:hover{background:#FFCF6B;transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,194,74,.36)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.btn-outline{border:1px solid var(--line);color:var(--text-1);background:#fff}
.btn-outline:hover{border-color:#CFC7E6;box-shadow:var(--shadow-1);transform:translateY(-2px)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-lg{height:52px;padding:0 30px}
.btn[disabled],.btn.is-disabled{opacity:.45;transform:none;box-shadow:none;pointer-events:none}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--radius-sm);background:#F0EAFB;color:var(--violet-700);font-size:12px;font-weight:500;line-height:1.6}
.badge--aurora{background:rgba(31,199,180,.14);color:#0E7F74}
.badge--dark{background:rgba(255,255,255,.08);color:rgba(255,255,255,.85)}

/* 导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(13,8,32,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:var(--ink-900);box-shadow:0 12px 32px rgba(13,8,32,.35);border-bottom-color:rgba(255,255,255,.08)}
.nav-inner{
  max-width:var(--container);margin:0 auto;padding:0 32px;height:72px;
  display:flex;align-items:center;gap:20px;transition:height .25s ease;
}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;white-space:nowrap;letter-spacing:.2px}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad-main);color:#fff;font-size:13px;
  box-shadow:0 6px 16px rgba(91,63,168,.45);
}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 12px;border-radius:999px;
  color:rgba(255,255,255,.82);font-size:15px;font-weight:500;
  transition:color .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--star-400);transform:scaleX(0);transform-origin:left center;
  transition:transform .18s ease-out;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.85);border:1px solid rgba(255,255,255,.22);
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;color:#fff;font-size:18px;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.22)}
.menu-toggle:hover{background:rgba(255,255,255,.14)}

.drawer-mask{position:fixed;inset:0;background:rgba(13,8,32,.55);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:65}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);z-index:70;
  background:rgba(13,8,32,.96);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:88px 24px 28px;display:flex;flex-direction:column;gap:4px;
  transform:translateX(100%);transition:transform .28s ease-out;
  border-left:1px solid rgba(255,255,255,.12);overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.mobile-drawer .drawer-title{font-size:12px;letter-spacing:.12em;color:rgba(255,255,255,.5);margin:6px 0 10px}
.mobile-drawer a{color:rgba(255,255,255,.88);font-size:15px;font-weight:500;padding:13px 4px;border-bottom:1px solid rgba(255,255,255,.08);min-height:44px;display:flex;align-items:center}
.mobile-drawer a:hover{color:var(--star-400)}
.mobile-drawer .btn{margin-top:20px;justify-content:center}

/* 次级 Hero */
.sub-hero{
  position:relative;color:#fff;overflow:hidden;
  padding:150px 0 72px;
  background-image:linear-gradient(180deg,rgba(13,8,32,.78) 0%,rgba(23,16,48,.86) 62%,rgba(13,8,32,.94) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.sub-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.08;
  background-image:radial-gradient(circle,#fff 1px,transparent 1px);
  background-size:26px 26px;
}
.sub-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.breadcrumb span[aria-current]{color:var(--star-400)}
.sub-hero h1{color:#fff;max-width:820px}
.sub-hero .h1-sub{margin-top:18px;max-width:640px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.78)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.stat{
  display:inline-flex;align-items:center;gap:10px;padding:8px 16px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
}
.stat i{color:var(--aurora-500);font-size:13px}
.stat b{font-size:20px;font-weight:700;color:var(--star-400);font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{font-size:12px;color:rgba(255,255,255,.72)}

/* 锚点条 */
.anchor-bar{
  position:sticky;top:64px;z-index:40;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.anchor-inner{display:flex;align-items:center;gap:8px;height:56px;overflow-x:auto;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-link{
  white-space:nowrap;font-size:14px;font-weight:500;color:var(--text-2);
  padding:8px 15px;border-radius:999px;border:1px solid transparent;min-height:38px;display:inline-flex;align-items:center;
  transition:color .18s ease,background-color .18s ease,border-color .18s ease;
}
.anchor-link:hover{color:var(--violet-700);background:var(--moon-50)}
.anchor-link.is-active{color:var(--violet-700);background:#F0EAFB;border-color:#E1D6F7}

/* 功能切换 */
.feature-switch{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.func-list{display:flex;flex-direction:column;gap:12px}
.func-item{
  display:flex;gap:14px;align-items:flex-start;text-align:left;width:100%;
  padding:16px 18px;border-radius:var(--radius-md);border:1px solid var(--line);background:#fff;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.func-item:hover{border-color:#CFC7E6;box-shadow:var(--shadow-1);transform:translateY(-2px)}
.func-item.is-active{border-color:var(--violet-500);background:var(--moon-50);box-shadow:var(--shadow-1)}
.fi-icon{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;
  background:#F0EAFB;color:var(--violet-700);font-size:16px;transition:background .18s ease,color .18s ease;
}
.func-item.is-active .fi-icon{background:var(--grad-main);color:#fff}
.fi-text h3{font-size:16px;font-weight:600;line-height:1.4}
.fi-text p{font-size:13px;line-height:1.6;color:var(--text-3);margin-top:4px}

.func-panels{min-height:420px}
.func-panel{display:none;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow-1);overflow:hidden}
.func-panel.is-active{display:block;animation:fadeUp .32s ease-out}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.func-panel img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line);background:var(--moon-100)}
.func-panel-body{padding:26px 28px 30px}
.func-panel-body h3{margin-bottom:12px}
.func-panel-body p{font-size:15px;line-height:1.85}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.check-list li{position:relative;padding-left:24px;font-size:15px;line-height:1.75;color:var(--text-2)}
.check-list li::before{
  content:"";position:absolute;left:3px;top:10px;width:8px;height:8px;border-radius:2px;background:var(--aurora-500);
}
.panel-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.panel-badges .badge{background:var(--moon-100);color:var(--violet-700);font-weight:600}
.panel-badges .badge b{font-variant-numeric:tabular-nums}

/* 模块区 */
.module-layout{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.module-main{border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;overflow:hidden;box-shadow:var(--shadow-1);transition:transform .18s ease-out,box-shadow .18s ease-out}
.module-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.module-main img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--moon-100);border-bottom:1px solid var(--line)}
.module-main-body{padding:26px 28px 30px}
.module-main-body h3{margin:12px 0 10px}
.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--violet-700);font-size:14px;font-weight:600;transition:gap .18s ease,color .18s ease;margin-top:20px}
.text-link:hover{gap:13px;color:var(--violet-500)}
.module-side{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.side-card{
  padding:20px 18px;border:1px solid var(--line);border-radius:var(--radius-md);background:#fff;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.side-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DDD3F3}
.side-card .side-icon{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:var(--moon-100);color:var(--violet-700);font-size:15px;margin-bottom:12px;
}
.side-card h3{font-size:16px;font-weight:600;line-height:1.45}
.side-card p{font-size:13px;line-height:1.65;color:var(--text-3);margin-top:6px}

/* 窄卡带 */
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.mini-card{
  display:flex;gap:16px;padding:16px;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.mini-card img{width:96px;height:96px;flex:0 0 96px;border-radius:var(--radius-md);object-fit:cover;background:var(--moon-100)}
.mini-card h3{font-size:16px;font-weight:600;line-height:1.45}
.mini-card p{font-size:13px;line-height:1.6;color:var(--text-3);margin-top:6px}
.mini-card .mini-time{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--text-3);margin-top:10px}

/* 步骤 */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{
  padding:26px 22px;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;position:relative;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.step-num{
  width:46px;height:46px;border-radius:50%;border:2px solid var(--violet-500);color:var(--violet-700);
  display:grid;place-items:center;font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step-card h3{font-size:17px;font-weight:600}
.step-card p{font-size:14px;line-height:1.75;color:var(--text-2);margin-top:8px}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item.is-open{border-color:#DCD2F2;box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:500;text-align:left;color:var(--text-1);line-height:1.5;min-height:44px;
}
.faq-sign{position:relative;width:20px;height:20px;flex:0 0 20px}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--violet-500);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.faq-sign::before{left:2px;right:2px;top:9px;height:2px}
.faq-sign::after{top:2px;bottom:2px;left:9px;width:2px}
.faq-item.is-open .faq-sign::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}
.help-card{
  border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--moon-50);padding:28px 26px;
}
.help-card h3{font-size:19px;margin-bottom:10px}
.help-card p{font-size:14px;line-height:1.8}
.help-card .help-links{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.help-card .help-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:13px 16px;border-radius:var(--radius-md);background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:500;color:var(--text-1);min-height:44px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.help-card .help-links a:hover{border-color:var(--violet-500);color:var(--violet-700);transform:translateY(-2px);box-shadow:var(--shadow-1)}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad-main);color:#fff;border-radius:24px;
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:0 20px 44px rgba(58,36,112,.22);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),transparent 68%);
}
.cta-band h2{color:#fff;font-size:26px;position:relative;z-index:2}
.cta-band p{color:rgba(255,255,255,.84);font-size:15px;margin-top:8px;max-width:560px;position:relative;z-index:2}
.cta-band .btn{position:relative;z-index:2}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.78);font-size:14px;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.footer-social a:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.footer-col h4{color:var(--star-400);font-size:15px;font-weight:600;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}
.footer-contact i{color:var(--aurora-500);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

@media (max-width:1199px){
  .nav-inner{padding:0 24px}
}
@media (max-width:1023px){
  h1{font-size:32px}
  h2{font-size:26px}
  h3{font-size:20px}
  .container{padding:0 24px}
  .section{padding:64px 0}
  .main-nav{display:none}
  .menu-toggle{display:inline-flex}
  .nav-actions .btn{display:none}
  .feature-switch{grid-template-columns:1fr}
  .func-panels{min-height:0}
  .module-layout{grid-template-columns:1fr}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .mini-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sub-hero{padding:132px 0 60px}
  .cta-band{padding:32px 28px}
}
@media (max-width:639px){
  h1{font-size:28px;line-height:1.28}
  h2{font-size:24px}
  h3{font-size:19px}
  .container{padding:0 16px}
  .section{padding:48px 0}
  .nav-inner{padding:0 16px;height:60px}
  .site-header.is-scrolled .nav-inner{height:60px}
  .brand{font-size:15px}
  .brand .logo-mark{width:28px;height:28px;flex:0 0 28px}
  .anchor-bar{top:60px}
  .sub-hero{padding:112px 0 52px}
  .hero-actions .btn{width:100%}
  .stat{flex:1 1 100%}
  .module-side{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .mini-card{flex-direction:column}
  .mini-card img{width:100%;height:160px;flex:none}
  .cta-band{padding:28px 20px;border-radius:20px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --ink-900:#0D0820;
  --ink-800:#171030;
  --violet-700:#3A2470;
  --violet-500:#5B3FA8;
  --aurora-500:#1FC7B4;
  --star-400:#FFC24A;
  --moon-50:#F7F5FC;
  --moon-100:#EFEBF8;
  --tag-bg:#F0EAFB;
  --line:#E5E0F2;
  --text-1:#1B1533;
  --text-2:#565070;
  --text-3:#8B85A3;
  --radius-xl:20px;
  --radius-md:14px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow-card:0 10px 30px rgba(28,17,64,.08);
  --shadow-card-hover:0 18px 40px rgba(28,17,64,.14);
  --grad-main:linear-gradient(120deg,#3A2470 0%,#5B3FA8 55%,#1FC7B4 100%);
  --ease:180ms ease-out;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
button{font:inherit;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--violet-500);outline-offset:2px;box-shadow:0 0 0 3px rgba(58,36,112,.15);}
::selection{background:rgba(91,63,168,.18);}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  height:72px;
  display:flex;
  align-items:center;
  background:rgba(13,8,32,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 6px 24px rgba(9,5,24,.24);
  transition:height var(--ease),background var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{
  height:64px;
  background:var(--ink-900);
  box-shadow:0 12px 32px rgba(9,5,24,.45);
}
.header-inner{display:flex;align-items:center;gap:20px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;font-size:17px;font-weight:700;letter-spacing:.3px;white-space:nowrap;}
.logo-mark{
  width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--grad-main);
  color:var(--star-400);
  font-size:13px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.22),0 4px 14px rgba(31,199,180,.28);
}
.main-nav{display:flex;align-items:center;gap:16px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:6px 2px;
  font-size:14px;
  font-weight:500;
  color:rgba(255,255,255,.82);
  white-space:nowrap;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--star-400);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:#fff;}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;cursor:pointer;
  transition:background var(--ease),transform var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.18);transform:translateY(-2px);}
.menu-toggle{display:none;}
.drawer-mask{
  position:fixed;inset:0;z-index:90;
  background:rgba(9,5,24,.58);
  opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:500;letter-spacing:.2px;
  cursor:pointer;
  transition:transform var(--ease),background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--star-400);color:var(--ink-900);}
.btn-primary:hover{background:#FFD073;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,194,74,.3);}
.btn-ghost{border-color:rgba(255,255,255,.36);color:#fff;background:transparent;}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}
.btn-outline{border-color:#CFC7E6;color:var(--violet-700);background:#fff;}
.btn-outline:hover{border-color:var(--violet-500);color:var(--violet-500);transform:translateY(-2px);box-shadow:var(--shadow-card);}
.btn-sm{height:36px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.45;transform:none;box-shadow:none;pointer-events:none;}

/* ============ 次级 Hero ============ */
.page-hero{
  position:relative;
  min-height:320px;
  display:flex;
  align-items:flex-end;
  padding:132px 0 52px;
  overflow:hidden;
  background:var(--ink-900) url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(13,8,32,.92) 0%,rgba(58,36,112,.84) 52%,rgba(23,16,48,.9) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.07;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;width:100%;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.62);margin-bottom:18px;
}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.34);}
.breadcrumb .current{color:var(--star-400);}
.page-hero h1{
  font-size:40px;line-height:1.2;font-weight:700;color:#fff;letter-spacing:.4px;
  max-width:900px;
}
.page-hero h1 .accent{
  background:linear-gradient(120deg,#FFC24A 0%,#FFE2A8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:16px;max-width:680px;
  font-size:16px;line-height:1.75;
  color:rgba(255,255,255,.78);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* ============ 锚点条 ============ */
.anchor-bar{
  position:sticky;top:64px;z-index:60;
  background:rgba(247,245,252,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.anchor-scroll{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;
  padding:12px 0;
  scrollbar-width:none;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-link{
  flex:0 0 auto;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--text-2);
  font-size:14px;
  white-space:nowrap;
  transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease);
}
.anchor-link:hover{color:var(--violet-700);border-color:#D9CDEF;background:var(--tag-bg);transform:translateY(-2px);}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section--tint{background:var(--moon-50);}
.section--tight{padding-top:64px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;
}
.section-title{
  position:relative;
  font-size:30px;line-height:1.28;font-weight:700;color:var(--text-1);
  padding-left:16px;
}
.section-title::before{
  content:"";
  position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:var(--grad-main);
}
.section-sub{margin-top:10px;font-size:15px;color:var(--text-2);max-width:720px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--violet-700);
}
.link-more:hover{color:var(--violet-500);}
.link-more i{transition:transform var(--ease);}
.link-more:hover i{transform:translateX(3px);}

/* ============ 数据徽章 ============ */
.badge-row{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:44px;}
.stat-badge{
  display:flex;align-items:center;gap:14px;
  padding:14px 22px;
  min-width:210px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease);
}
.stat-badge:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.stat-badge .ic{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--tag-bg);color:var(--violet-700);font-size:16px;
}
.stat-num{
  font-size:20px;font-weight:700;line-height:1.2;
  font-variant-numeric:tabular-nums;
  color:var(--violet-700);
}
.stat-label{font-size:12px;color:var(--text-3);line-height:1.6;}

/* ============ 时间线 ============ */
.timeline{position:relative;}
.timeline::before{
  content:"";
  position:absolute;left:7px;top:14px;bottom:14px;width:1px;
  background:var(--line);
}
.tl-item{position:relative;padding:0 0 32px 40px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;left:0;top:12px;
  width:15px;height:15px;border-radius:50%;
  background:#fff;
  border:2px solid var(--star-400);
  box-shadow:0 0 0 4px rgba(255,194,74,.18);
}
.tl-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:24px 26px;
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;}
.tl-time{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-sm);
  background:var(--tag-bg);color:var(--violet-700);
  font-size:13px;font-weight:500;
  font-variant-numeric:tabular-nums;
}
.tl-title{font-size:22px;line-height:1.38;font-weight:700;margin:14px 0 8px;}
.tl-text{font-size:15px;line-height:1.8;color:var(--text-2);}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-sm);
  background:var(--moon-100);color:var(--text-2);
  font-size:12px;line-height:1.5;
}
.tag-primary{background:var(--tag-bg);color:var(--violet-700);font-weight:500;}
.tag-aurora{background:rgba(31,199,180,.12);color:#12867A;font-weight:500;}

/* ============ 通用卡片 ============ */
.gx-24{margin-left:0;margin-right:0;row-gap:24px;}
.gx-24 > .cell{padding-left:0;padding-right:0;}
.card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:#D9CDEF;}
.card-media{
  position:relative;
  aspect-ratio:16/10;
  background:var(--moon-100);
  overflow:hidden;
}
.card-media img{
  width:100%;height:100%;object-fit:cover;
  box-shadow:inset 0 0 0 1px rgba(27,21,51,.06);
  transition:transform 320ms ease-out;
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{display:flex;flex-direction:column;gap:12px;padding:22px;flex:1;}
.card-title{font-size:18px;line-height:1.5;font-weight:700;}
.card-text{font-size:14px;line-height:1.75;color:var(--text-2);}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--moon-100);
}
.meta{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3);}
.meta i{font-size:12px;}

/* 窄卡（左图右文） */
.narrow-card{
  display:flex;gap:16px;align-items:stretch;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-xl);padding:16px;
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease);
}
.narrow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.narrow-media{
  flex:0 0 132px;border-radius:var(--radius-md);overflow:hidden;background:var(--moon-100);
}
.narrow-media img{width:100%;height:100%;object-fit:cover;}
.narrow-body{display:flex;flex-direction:column;gap:8px;flex:1;min-width:0;}
.narrow-body h3{font-size:17px;line-height:1.5;font-weight:700;}
.narrow-body p{font-size:14px;line-height:1.7;color:var(--text-2);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:16px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);
  border-radius:16px;overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-card);}
.faq-item.is-open{border-color:#D9CDEF;box-shadow:var(--shadow-card);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  background:transparent;border:0;
  text-align:left;
  font-size:16px;line-height:1.55;font-weight:500;
  color:var(--text-1);
  cursor:pointer;
}
.faq-q .ic{
  flex:0 0 auto;
  width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--tag-bg);color:var(--violet-700);
  font-size:12px;
  transition:transform 220ms ease-out,background var(--ease),color var(--ease);
}
.faq-item.is-open .faq-q .ic{transform:rotate(45deg);background:var(--violet-700);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease-out;}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2);}
.faq-item.is-open .faq-a{max-height:460px;}

/* ============ CTA 带 ============ */
.cta-band{position:relative;overflow:hidden;background:var(--grad-main);padding:64px 0;}
.cta-band::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.65) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.08;pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-inner h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;}
.cta-inner p{margin-top:10px;font-size:15px;line-height:1.75;color:rgba(255,255,255,.82);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-logo{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:17px;font-weight:700;
  margin-bottom:16px;
}
.footer-brand p{
  font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);
  max-width:360px;margin-bottom:22px;
}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.8);
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.footer-social a:hover{background:var(--star-400);color:var(--ink-900);border-color:var(--star-400);transform:translateY(-2px);}
.footer-col h4{font-size:15px;font-weight:600;color:var(--star-400);margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.68);}
.footer-contact i{color:var(--aurora-500);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .page-hero h1{font-size:34px;}
  .section-title{font-size:27px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:span 3;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .site-header{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(13,8,32,.9);}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;
    width:300px;max-width:86vw;
    display:flex;flex-direction:column;align-items:flex-start;gap:4px;
    margin:0;padding:88px 24px 32px;
    background:rgba(13,8,32,.97);
    border-left:1px solid rgba(255,255,255,.12);
    box-shadow:-18px 0 40px rgba(9,5,24,.4);
    transform:translateX(103%);
    transition:transform 260ms ease-out;
    overflow-y:auto;
    z-index:120;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{
    width:100%;padding:14px 6px;font-size:16px;
    border-bottom:1px solid rgba(255,255,255,.08);
    color:rgba(255,255,255,.86);
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--star-400);}
  .menu-toggle{display:grid;}
  .header-actions .btn-sm{display:none;}
  .anchor-bar{top:60px;}
  .section{padding:64px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .page-hero{padding:118px 0 44px;min-height:290px;}
  .page-hero h1{font-size:30px;}
  .hero-sub{font-size:15px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-col:last-child{grid-column:span 2;}
  .footer-brand{grid-column:span 2;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .brand{font-size:15.5px;}
  .logo-mark{width:28px;height:28px;font-size:12px;}
  .page-hero{min-height:280px;padding:108px 0 38px;}
  .page-hero h1{font-size:27px;line-height:1.3;}
  .section{padding:52px 0;}
  .section-title{font-size:23px;}
  .section-sub{font-size:14px;}
  .badge-row{gap:12px;margin-bottom:32px;}
  .stat-badge{min-width:0;flex:1 1 100%;padding:12px 16px;}
  .timeline::before{left:6px;}
  .tl-item{padding-left:30px;}
  .tl-card{padding:20px;}
  .tl-title{font-size:19px;}
  .narrow-card{flex-direction:column;}
  .narrow-media{flex:none;aspect-ratio:16/9;}
  .cta-inner h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-brand,.footer-col:last-child{grid-column:span 1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .page-hero h1{font-size:24px;}
  .card-title{font-size:17px;}
  .faq-q{font-size:15px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
}

.subscribe-form{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:32px;box-shadow:var(--shadow-card);
}
.field-label{display:block;font-size:14px;font-weight:500;color:var(--text-2);margin-bottom:8px;}
.field-input{
  width:100%;height:48px;padding:0 16px;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  font-size:15px;color:var(--text-1);
  transition:border-color var(--ease),box-shadow var(--ease);
}
select.field-input{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#8B85A3 50%),linear-gradient(135deg,#8B85A3 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field-input:focus{border-color:var(--violet-500);box-shadow:0 0 0 3px rgba(58,36,112,.12);outline:none;}
.field-input::placeholder{color:var(--text-3);}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:24px;}
.form-tip{font-size:13px;color:var(--text-3);}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#0D0820;
  --ink-800:#171030;
  --violet-700:#3A2470;
  --violet-500:#5B3FA8;
  --aurora-500:#1FC7B4;
  --star-400:#FFC24A;
  --moon-50:#F7F5FC;
  --moon-100:#EFEBF8;
  --line:#E5E0F2;
  --text-1:#1B1533;
  --text-2:#565070;
  --text-3:#8B85A3;
  --warn:#E2603F;
  --grad-main:linear-gradient(120deg,#3A2470 0%,#5B3FA8 55%,#1FC7B4 100%);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow-card:0 10px 30px rgba(28,17,64,.08);
  --shadow-hover:0 18px 40px rgba(28,17,64,.14);
  --nav-h:72px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text-1);background:#fff;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;color:var(--text-1);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
button{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--violet-500);outline-offset:3px;box-shadow:0 0 0 3px rgba(58,36,112,.15);}

/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media (min-width:640px){.container{padding-left:24px;padding-right:24px;}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px;}}
@media (min-width:1440px){.container{max-width:1200px;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:500;letter-spacing:.2px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--star-400);color:var(--ink-900);box-shadow:0 8px 20px rgba(255,194,74,.28);}
.btn-primary:hover{transform:translateY(-2px);background:#FFB92E;box-shadow:0 12px 26px rgba(255,194,74,.36);}
.btn-primary:active{transform:translateY(0);background:#F0A81E;}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5);}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(255,255,255,.1);border-color:#fff;}
.btn-outline{background:#fff;color:var(--violet-700);border:1px solid #CFC7E6;}
.btn-outline:hover{transform:translateY(-2px);border-color:var(--violet-500);color:var(--violet-500);box-shadow:var(--shadow-card);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-md{height:44px;padding:0 22px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-sm);
  background:#F0EAFB;color:var(--violet-700);
  font-size:12px;font-weight:500;line-height:1.5;
}
.tag-aurora{background:rgba(31,199,180,.12);color:#0E8C7E;}
.badge{
  display:inline-flex;align-items:baseline;gap:8px;
  padding:7px 14px;border-radius:var(--radius-sm);
  background:#F0EAFB;
}
.badge b{font-size:20px;font-weight:700;color:var(--violet-700);font-variant-numeric:tabular-nums;line-height:1;letter-spacing:-.5px;}
.badge span{font-size:12px;color:var(--text-2);}
.badge-dark{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);}
.badge-dark b{color:var(--star-400);}
.badge-dark span{color:rgba(255,255,255,.75);}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(13,8,32,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 8px 26px rgba(9,5,24,.18);
  transition:background-color .22s ease-out,box-shadow .22s ease-out;
}
.site-header.is-scrolled{background:var(--ink-900);box-shadow:0 14px 34px rgba(9,5,24,.34);}
.header-inner{display:flex;align-items:center;gap:18px;height:72px;}
@media (max-width:1023px){.header-inner{height:60px;gap:10px;}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:var(--grad-main);color:#fff;font-size:14px;
  box-shadow:0 6px 16px rgba(58,36,112,.4);
}
.brand-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.3px;white-space:nowrap;}
@media (max-width:400px){.brand-text{font-size:15px;}}
.main-nav{display:none;}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
}
.nav-link{
  position:relative;display:block;
  padding:8px 11px;border-radius:999px;
  font-size:14px;font-weight:500;color:rgba(255,255,255,.82);
  white-space:nowrap;transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:1px;height:2px;
  background:var(--star-400);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
@media (min-width:1024px){.header-actions{margin-left:14px;}}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  color:rgba(255,255,255,.85);border:1px solid rgba(255,255,255,.16);
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.icon-btn:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.34);}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;color:#fff;border:1px solid rgba(255,255,255,.16);}
.nav-toggle:hover{background:rgba(255,255,255,.12);}
@media (min-width:1024px){.nav-toggle{display:none;}}
@media (max-width:1023px){.header-actions .btn{display:none;}}
.mobile-drawer{
  position:fixed;top:60px;right:0;bottom:0;
  width:min(320px,86vw);z-index:99;
  background:rgba(13,8,32,.96);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-left:1px solid rgba(255,255,255,.12);
  padding:18px 16px 32px;overflow-y:auto;
  transform:translateX(102%);
  transition:transform .24s ease-out;
}
.mobile-drawer.is-open{transform:translateX(0);}
@media (min-width:1024px){.mobile-drawer{display:none;}}
.mobile-drawer .nav-link{display:block;padding:14px 14px;font-size:16px;border-radius:12px;}
.mobile-drawer .nav-link::after{display:none;}
.mobile-drawer .nav-link.is-active{background:rgba(255,255,255,.09);color:#fff;}
.mobile-drawer .btn{margin-top:18px;width:100%;}

/* ============ 次级 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:150px 0 68px;
  background-image:linear-gradient(120deg,rgba(13,8,32,.93) 0%,rgba(58,36,112,.82) 55%,rgba(31,199,180,.42) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;background-repeat:no-repeat;
  color:#fff;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:26px 26px;opacity:.07;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:20px;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.35);}
.breadcrumb .current{color:var(--star-400);}
.page-hero h1{
  font-size:40px;line-height:1.24;color:#fff;
  max-width:820px;letter-spacing:-.5px;
}
.page-hero .hero-sub{
  margin-top:18px;max-width:700px;
  font-size:16px;line-height:1.85;color:rgba(255,255,255,.78);
}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
@media (max-width:1023px){
  .page-hero{padding:118px 0 54px;}
  .page-hero h1{font-size:30px;}
  .page-hero .hero-sub{font-size:15px;}
}
@media (max-width:639px){
  .page-hero{padding:104px 0 46px;}
  .page-hero h1{font-size:26px;}
}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tint{background:var(--moon-50);}
.section-dark{background:var(--ink-900);color:rgba(255,255,255,.78);}
@media (max-width:1023px){.section{padding:64px 0;}}
@media (max-width:639px){.section{padding:52px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px;}
.section-head .head-left{max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
  background:#F0EAFB;color:var(--violet-700);
  font-size:12px;font-weight:500;letter-spacing:.6px;
}
.section-dark .eyebrow{background:rgba(255,255,255,.08);color:var(--star-400);}
.section-head h2{font-size:30px;line-height:1.3;letter-spacing:-.4px;}
.section-head .section-desc{margin-top:12px;font-size:15px;line-height:1.8;color:var(--text-2);}
.section-dark .section-head h2{color:#fff;}
.section-dark .section-head .section-desc{color:rgba(255,255,255,.68);}
@media (max-width:1023px){
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:34px;}
  .section-head h2{font-size:24px;}
}
@media (max-width:639px){.section-head h2{font-size:21px;}}

/* ============ 数据条 ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:-38px;position:relative;z-index:5;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);padding:28px 26px;
}
.stat-item{display:flex;flex-direction:column;gap:6px;padding-left:18px;border-left:2px solid var(--moon-100);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item b{font-size:26px;font-weight:700;color:var(--violet-700);font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.6px;}
.stat-item b em{font-style:normal;font-size:14px;margin-left:2px;}
.stat-item span{font-size:13px;color:var(--text-2);}
@media (max-width:1023px){
  .stat-bar{grid-template-columns:1fr 1fr;gap:18px 14px;padding:22px 20px;margin-top:-28px;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:639px){
  .stat-bar{grid-template-columns:1fr;}
  .stat-item{border-left:0;padding-left:0;padding-bottom:14px;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:0;padding-bottom:0;}
}

/* ============ 步骤卡 ============ */
.step-grid{margin-top:0;}
.step-card{
  position:relative;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 24px 26px;box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
  display:flex;flex-direction:column;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:54px;height:54px;border-radius:50%;
  border:1.5px solid var(--violet-500);
  color:var(--violet-700);font-size:19px;font-weight:700;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
  margin-bottom:18px;
}
.step-card h3{font-size:19px;line-height:1.45;margin-bottom:10px;}
.step-card p{font-size:14px;line-height:1.8;color:var(--text-2);}
.step-card .dot-list{margin-top:14px;}
.dot-list li{
  position:relative;padding-left:16px;margin-bottom:8px;
  font-size:13.5px;line-height:1.75;color:var(--text-2);
}
.dot-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:2px;background:var(--aurora-500);
}

/* ============ 图文分栏 ============ */
.feature-split{margin-bottom:0;}
.media-frame{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  background:var(--moon-100);
}
.media-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;transition:transform .35s ease-out;}
.media-frame:hover img{transform:scale(1.03);}
.split-body h2{font-size:28px;line-height:1.32;margin-bottom:16px;letter-spacing:-.4px;}
.split-body p{font-size:15px;line-height:1.9;color:var(--text-2);margin-bottom:14px;}
.check-list{margin:22px 0 26px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px;font-size:14.5px;color:var(--text-2);line-height:1.7;}
.check-list li i{color:var(--aurora-500);font-size:14px;margin-top:5px;flex-shrink:0;}
@media (max-width:1023px){.split-body h2{font-size:23px;margin-top:26px;}}

/* ============ 提示卡 ============ */
.notice-grid{margin-top:0;}
.notice-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px 24px 22px;
  border-left:3px solid var(--violet-500);
  box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.notice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.notice-card.is-warn{border-left-color:var(--warn);}
.notice-card.is-safe{border-left-color:var(--aurora-500);}
.notice-card h3{display:flex;align-items:center;gap:10px;font-size:17px;margin-bottom:12px;}
.notice-card h3 i{color:var(--warn);}
.notice-card.is-safe h3 i{color:var(--aurora-500);}
.notice-card p{font-size:14px;line-height:1.85;color:var(--text-2);}
.notice-card .dot-list{margin-top:12px;}

/* ============ 表单 ============ */
.form-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);padding:34px 32px;
}
.form-panel h3{font-size:19px;margin-bottom:8px;}
.form-panel .form-tip{font-size:13.5px;color:var(--text-2);margin-bottom:24px;line-height:1.75;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:500;color:var(--text-1);margin-bottom:8px;}
.field label .req{color:var(--warn);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;
  font-size:15px;color:var(--text-1);
  background:#fff;border:1px solid var(--line);border-radius:12px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
  appearance:none;-webkit-appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%23565070' d='M4.2 6.3a1 1 0 0 1 1.4 0L8 8.7l2.4-2.4a1 1 0 1 1 1.4 1.4l-3.1 3.1a1 1 0 0 1-1.4 0L4.2 7.7a1 1 0 0 1 0-1.4z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:16px;
  padding-right:40px;
}
.field textarea{min-height:132px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--violet-500);box-shadow:0 0 0 3px rgba(91,63,168,.14);
}
.field .hint{display:block;margin-top:6px;font-size:12.5px;color:var(--text-3);}
.field .err{display:block;margin-top:6px;font-size:13px;color:var(--warn);min-height:18px;}
.form-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px;}
.form-foot .note{font-size:12.5px;color:var(--text-3);}
.form-side{background:var(--moon-50);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 24px;height:100%;}
.form-side h3{font-size:17px;margin-bottom:16px;}
.form-side .dot-list li{font-size:14px;margin-bottom:12px;}
@media (max-width:639px){.form-panel{padding:24px 18px;}}

/* ============ FAQ ============ */
.faq-list{max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  margin-bottom:14px;overflow:hidden;
  transition:box-shadow .18s ease-out,border-color .18s ease-out;
}
.faq-item:hover{border-color:#D6CCEE;box-shadow:var(--shadow-card);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16px;font-weight:500;color:var(--text-1);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex-shrink:0;
  width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:#F0EAFB;color:var(--violet-700);
  font-size:16px;line-height:1;font-weight:500;
}
.faq-item[open] summary::after{content:"−";background:var(--violet-700);color:#fff;}
.faq-item[open] summary{border-bottom:1px solid var(--line);}
.faq-body{padding:18px 22px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}
.faq-body p+p{margin-top:12px;}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background-image:linear-gradient(120deg,rgba(58,36,112,.94) 0%,rgba(91,63,168,.9) 50%,rgba(31,199,180,.78) 100%);
  color:#fff;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.14) 0 1px,transparent 1px 24px);
  opacity:.35;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:60px 0;
}
.cta-inner h2{font-size:26px;color:#fff;letter-spacing:-.3px;}
.cta-inner p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.82);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0;}
@media (max-width:1023px){
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px;padding:48px 0;}
  .cta-inner h2{font-size:22px;}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:44px;}
.footer-brand .footer-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.78);
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.footer-social a:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.34);transform:translateY(-2px);}
.footer-col h4{font-size:15px;font-weight:500;color:var(--star-400);margin-bottom:18px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7;}
.footer-contact li i{color:var(--aurora-500);margin-top:5px;font-size:13px;flex-shrink:0;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:52px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:var(--text-3);
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .site-footer{padding:56px 0 0;}
}
@media (max-width:639px){
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}

/* ============ 工具 ============ */
.mt-0{margin-top:0;}
.text-center{text-align:center;}
@media (max-width:1023px){
  .grid-margin-x>.cell{margin-bottom:22px;}
}

/* roulang page: category5 */
/* ================= 设计变量 ================= */
:root{
  --ink-900:#0D0820;
  --ink-800:#171030;
  --violet-700:#3A2470;
  --violet-500:#5B3FA8;
  --aurora-500:#1FC7B4;
  --star-400:#FFC24A;
  --moon-50:#F7F5FC;
  --moon-100:#EFEBF8;
  --line:#E5E0F2;
  --text-1:#1B1533;
  --text-2:#565070;
  --text-3:#8B85A3;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:8px;
  --sh-1:0 10px 30px rgba(28,17,64,.08);
  --sh-2:0 18px 40px rgba(28,17,64,.14);
  --container:1200px;
  --nav-h:72px;
  --ease:.18s ease-out;
}

/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--moon-50);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--violet-700);text-decoration:none;transition:color var(--ease);background-color:transparent;}
a:hover{color:var(--violet-500);}
button{font-family:inherit;font-size:inherit;line-height:inherit;}
h1,h2,h3,h4{font-weight:700;color:var(--text-1);margin:0;line-height:1.3;letter-spacing:-.01em;}
h1{font-size:40px;line-height:1.22;}
h2{font-size:30px;line-height:1.28;}
h3{font-size:22px;line-height:1.36;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--violet-500);outline-offset:2px;box-shadow:0 0 0 3px rgba(58,36,112,.15);border-radius:6px;}
.site-header :focus-visible,.page-hero :focus-visible,.cta-band :focus-visible{outline-color:var(--star-400);box-shadow:0 0 0 3px rgba(255,194,74,.22);}

/* ================= 容器与板块 ================= */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--white{background:#fff;}
.section--moon{background:var(--moon-50);}
.section-head{margin-bottom:38px;max-width:760px;}
.section-head h2{font-size:30px;}
.section-head p{margin-top:12px;color:var(--text-2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;letter-spacing:.16em;
  color:var(--violet-500);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--violet-500),var(--aurora-500));}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:500;letter-spacing:.2px;cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
  text-align:center;white-space:nowrap;
}
.btn-lg{height:52px;padding:0 30px;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-gold{background:var(--star-400);color:var(--ink-900);}
.btn-gold:hover{background:#F5B32F;color:var(--ink-900);transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,194,74,.32);}
.btn-gold:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:#CFC7E6;color:var(--text-1);}
.btn-ghost:hover{border-color:var(--violet-500);color:var(--violet-700);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.42);color:#fff;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none;box-shadow:none;}

/* ================= 导航 ================= */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(13,8,32,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 8px 30px rgba(13,8,32,.26);
  transition:background-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{background:var(--ink-900);box-shadow:0 10px 32px rgba(13,8,32,.46);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:var(--nav-h);transition:height var(--ease);}
.site-header.is-scrolled .nav-wrap{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;flex:0 0 auto;}
.brand:hover{color:#fff;}
.brand .brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;
  background:linear-gradient(120deg,var(--violet-500),var(--aurora-500));
  color:#fff;font-size:13px;
}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;padding:10px 13px;font-size:15px;font-weight:500;
  color:rgba(255,255,255,.82);white-space:nowrap;border-radius:999px;
}
.nav-link:hover{color:#fff;}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;
  background:var(--star-400);transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);color:#fff;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background-color var(--ease),transform var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.18);transform:translateY(-2px);}
.hamburger{
  display:none;width:44px;height:44px;padding:0;border-radius:12px;cursor:pointer;
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform var(--ease),opacity var(--ease);}
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(13,8,32,.52);
  opacity:0;visibility:hidden;transition:opacity .26s ease-out,visibility .26s ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:min(320px,86vw);padding:22px 20px 32px;
  background:rgba(13,8,32,.96);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transform:translateX(102%);transition:transform .26s ease-out;
  overflow-y:auto;display:flex;flex-direction:column;gap:6px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-head span{color:#fff;font-size:15px;font-weight:700;}
.drawer-close{
  width:40px;height:40px;border-radius:999px;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);color:#fff;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-link{
  display:block;padding:13px 14px;border-radius:12px;color:rgba(255,255,255,.84);
  font-size:15px;font-weight:500;
}
.drawer-link:hover,.drawer-link.is-active{background:rgba(255,255,255,.1);color:#fff;}
.drawer-cta{margin-top:16px;}

/* ================= 内页 Hero ================= */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  min-height:300px;display:flex;align-items:center;
  padding:calc(var(--nav-h) + 48px) 0 56px;
  background:
    linear-gradient(120deg,rgba(58,36,112,.9) 0%,rgba(91,63,168,.78) 52%,rgba(31,199,180,.62) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:36px 36px;opacity:.08;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:22px;height:1px;
  background-image:linear-gradient(90deg,rgba(255,255,255,.45) 0 10px,transparent 10px 24px);
  background-size:24px 1px;opacity:.28;
}
.page-hero .container{position:relative;z-index:2;}
.page-hero h1{color:#fff;max-width:900px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:14px;}
.crumb a{color:rgba(255,255,255,.72);}
.crumb a:hover{color:#fff;}
.crumb i{font-size:10px;opacity:.7;}
.lede{margin-top:14px;max-width:660px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);}
.hero-search{
  display:flex;align-items:center;gap:10px;margin-top:26px;max-width:580px;
  padding:6px 6px 6px 18px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.hero-search > i{color:rgba(255,255,255,.72);}
.hero-search input{
  flex:1;min-width:0;height:40px;border:0;background:none;color:#fff;
  font-size:15px;outline:none;
}
.hero-search input::placeholder{color:rgba(255,255,255,.62);}
.hero-search button{
  height:40px;padding:0 20px;border:0;border-radius:999px;cursor:pointer;
  background:var(--star-400);color:var(--ink-900);font-weight:500;
  transition:transform var(--ease),background-color var(--ease);
}
.hero-search button:hover{background:#F5B32F;transform:translateY(-2px);}

/* ================= 锚点条 ================= */
.anchor-bar{
  position:sticky;top:var(--nav-h);z-index:40;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.anchor-inner{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{
  flex:0 0 auto;padding:9px 16px;border-radius:999px;background:var(--moon-100);
  color:var(--text-2);font-size:14px;font-weight:500;border:1px solid transparent;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease);
}
.anchor-inner a:hover{background:#F0EAFB;color:var(--violet-700);border-color:#DED2F5;}

/* ================= 速查区 ================= */
.quick-row{margin-left:-16px;margin-right:-16px;}
.quick-row > .cell{padding-left:16px;padding-right:16px;}
.quick-media{
  border-radius:var(--r-lg);overflow:hidden;background:var(--moon-100);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.quick-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;transition:transform .35s ease-out;}
.quick-media:hover img{transform:scale(1.03);}
.quick-body h2{font-size:28px;margin-bottom:14px;}
.quick-body > p{color:var(--text-2);font-size:15.5px;}
.point-list{list-style:none;padding:0;display:grid;gap:12px;margin-top:22px;}
.point-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-2);line-height:1.7;}
.point-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;
  background:var(--aurora-500);
}
.point-list li strong{color:var(--text-1);font-weight:600;}
.badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.badge{
  display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--r-sm);
  background:var(--moon-100);
}
.badge .num{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--violet-700);line-height:1;}
.badge .lbl{font-size:12px;color:var(--text-3);line-height:1.3;}

/* ================= FAQ ================= */
.faq-group{margin-bottom:46px;}
.faq-group:last-of-type{margin-bottom:0;}
.faq-group-head{
  display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;
  padding-bottom:14px;margin-bottom:20px;border-bottom:1px solid var(--line);
}
.faq-group-head h2{font-size:24px;}
.faq-group-head .count{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.faq-group-head .tip{font-size:13px;color:var(--text-3);margin-left:auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:14px;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{border-color:#D9D0EE;box-shadow:var(--sh-1);}
.faq-item.is-open{border-color:#CFC7E6;box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:44px;padding:18px 22px;border:0;background:none;cursor:pointer;
  text-align:left;font-size:16px;font-weight:500;color:var(--text-1);
}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--violet-500);border-radius:2px;
  transition:transform .22s ease-out,opacity .22s ease-out;
}
.faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out;}
.faq-a-inner{padding:0 22px 20px;color:var(--text-2);font-size:15px;line-height:1.76;}
.faq-a-inner ul{list-style:none;display:grid;gap:8px;margin-top:10px;}
.faq-a-inner li{position:relative;padding-left:18px;}
.faq-a-inner li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;background:var(--aurora-500);border-radius:1px;}

/* ================= 规则要点卡 ================= */
.rule-row{margin-left:-11px;margin-right:-11px;}
.rule-row > .cell{padding-left:11px;padding-right:11px;margin-bottom:22px;}
.rule-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 26px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.rule-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.rule-card .rule-ico{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:12px;background:#F0EAFB;color:var(--violet-700);font-size:16px;margin-bottom:16px;
}
.rule-card h3{font-size:19px;margin-bottom:10px;}
.rule-card p{font-size:14.5px;color:var(--text-2);line-height:1.76;}
.rule-card .rule-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:8px;
  background:#F0EAFB;color:var(--violet-700);font-size:12.5px;font-weight:500;
}

/* ================= 返回与联系 ================= */
.back-row{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:34px;padding:22px 26px;border-radius:var(--r-lg);
  background:var(--moon-100);border:1px solid var(--line);
}
.back-row p{font-size:14.5px;color:var(--text-2);max-width:560px;}
.back-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ================= 底部 CTA ================= */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(120deg,#2A1A55 0%,var(--violet-700) 42%,var(--violet-500) 74%,var(--aurora-500) 128%);
  padding:64px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:34px 34px;opacity:.07;
}
.cta-inner{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:28px;margin-bottom:8px;}
.cta-inner p{color:rgba(255,255,255,.84);font-size:15px;max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ================= 页脚 ================= */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:40px;}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:40px;height:40px;border-radius:999px;border:1px solid rgba(255,255,255,.18);
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.78);font-size:14px;background:rgba(255,255,255,.04);
  transition:background-color var(--ease),color var(--ease),transform var(--ease);
}
.footer-social a:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.footer-col h4{color:var(--star-400);font-size:15px;margin-bottom:16px;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-contact{list-style:none;display:grid;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.68);line-height:1.6;}
.footer-contact i{color:var(--aurora-500);margin-top:4px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ================= 响应式 ================= */
@media (max-width:1199px){
  h1{font-size:36px;}
  .section{padding:76px 0;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .hamburger{display:inline-flex;}
  .nav-actions .nav-cta{display:none;}
  .anchor-bar{top:60px;}
  h1{font-size:30px;}
  h2{font-size:25px;}
  .section{padding:64px 0;}
  .section-head h2{font-size:25px;}
  .page-hero{padding:calc(var(--nav-h) + 40px) 0 48px;min-height:270px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner h2{font-size:24px;}
}
@media (max-width:767px){
  .section{padding:52px 0;}
  .section--tight{padding:44px 0;}
  .section-head{margin-bottom:28px;}
  h1{font-size:27px;}
  h2{font-size:23px;}
  h3{font-size:19px;}
  .quick-body h2{font-size:23px;}
  .faq-q{font-size:15.5px;padding:16px 18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .cta-band{padding:52px 0;}
  .back-row{padding:20px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  h1{font-size:25px;line-height:1.3;}
  h2{font-size:21px;}
  .brand .brand-text{font-size:15px;}
  .hero-search{flex-wrap:wrap;padding:12px 14px;border-radius:20px;}
  .hero-search input{width:100%;flex:1 0 100%;height:38px;padding:0 4px;}
  .hero-search button{width:100%;height:44px;}
  .rule-row > .cell{margin-bottom:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .back-actions{width:100%;}
  .back-actions .btn{width:100%;}
  .faq-group-head .tip{margin-left:0;}
}
@media (min-width:1440px){
  .container{max-width:1200px;}
}