/* roulang page: index */
:root{
  --primary:#4B2EA8;
  --primary-dark:#35207C;
  --primary-light:#EDE8FB;
  --accent:#FF7A2F;
  --accent-dark:#E8641C;
  --accent-light:#FFF1E8;
  --mint:#17BFA0;
  --warn:#E4572E;
  --ink:#1B1630;
  --text:#4A4560;
  --muted:#8B86A3;
  --line:#E7E3F2;
  --page:#F7F5FC;
  --white:#FFFFFF;
  --night:#191331;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,22,48,.06);
  --sh-2:0 8px 24px rgba(75,46,168,.10);
  --sh-3:0 16px 40px rgba(75,46,168,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--page);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.35;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container,.container-fluid{max-width:1200px;padding-left:32px;padding-right:32px;margin:0 auto}
.row{--bs-gutter-x:32px;--bs-gutter-y:32px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-compact{
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(27,22,48,.08);
}
.header-wrap{padding-top:14px;padding-bottom:14px;transition:padding .25s var(--ease)}
.site-header.is-compact .header-wrap{padding-top:8px;padding-bottom:8px}
.hdr-top{display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  position:relative;box-shadow:var(--sh-2);
}
.brand-mark::before{
  content:"";position:absolute;left:50%;top:50%;
  width:15px;height:15px;margin:-9px 0 0 -7px;
  border:2.5px solid #fff;border-radius:4px;
  border-right-color:rgba(255,255,255,.25);
  border-bottom-color:rgba(255,255,255,.25);
  transform:rotate(12deg);
}
.brand-name{font-size:20px;font-weight:800;letter-spacing:0;white-space:nowrap}
.nav-search{
  position:relative;flex:1 1 auto;max-width:620px;min-width:0;
  display:flex;align-items:center;height:50px;
  background:var(--page);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.nav-search:focus-within{
  background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(75,46,168,.16);
}
.nav-search > i.search-ico{position:absolute;left:20px;color:var(--muted);font-size:15px;pointer-events:none}
.nav-search input{
  flex:1 1 auto;height:100%;border:0;background:transparent;outline:none;
  padding:0 18px 0 48px;font-size:15px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--muted)}
.search-btn{
  flex:0 0 auto;width:42px;height:42px;margin-right:4px;border:0;border-radius:12px;
  background:var(--primary);color:#fff;font-size:15px;cursor:pointer;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.search-btn:hover{background:var(--primary-dark)}
.search-btn:active{transform:scale(.96)}
.search-hot{
  position:absolute;top:calc(100% + 10px);left:0;right:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:14px 16px;
  display:none;flex-wrap:wrap;gap:8px;z-index:20;
}
.nav-search.is-open .search-hot{display:flex}
.search-hot span{
  font-size:13px;color:var(--muted);width:100%;margin-bottom:2px;
}
.search-hot a{
  font-size:13px;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--primary-light);color:var(--primary-dark);font-weight:600;
}
.search-hot a:hover{background:var(--primary);color:#fff}
.hdr-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;margin-left:auto}
.login-link{font-size:14px;color:var(--text);font-weight:600}
.login-link:hover{color:var(--primary)}
.btn-cta-sm{
  display:inline-flex;align-items:center;gap:6px;
  height:42px;padding:0 20px;border-radius:var(--r-pill);
  border:1.5px solid var(--primary);color:var(--primary);
  font-size:14px;font-weight:700;background:transparent;
  transition:all .2s var(--ease);
}
.btn-cta-sm:hover{background:var(--primary-light);color:var(--primary-dark)}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;color:var(--ink);font-size:17px;cursor:pointer;
}
.hdr-nav{margin-top:12px}
.hdr-nav ul{display:flex;flex-wrap:wrap;gap:10px}
.hdr-nav a{
  display:inline-flex;align-items:center;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  background:var(--page);color:var(--text);
  font-size:14px;font-weight:600;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.hdr-nav a:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px)}
.hdr-nav a.active{background:var(--primary);color:#fff}
.hdr-nav a.active:hover{background:var(--primary-dark);color:#fff}

/* 移动端抽屉 */
.mobile-drawer{
  display:none;background:#fff;border-top:1px solid var(--line);
  padding:16px 24px 24px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;font-size:17px;font-weight:700;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link.active{color:var(--primary)}
.drawer-foot{margin-top:16px;font-size:13px;color:var(--muted)}

/* ---------- 按钮 ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border:0;border-radius:var(--r-pill);
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 6px 18px rgba(255,122,47,.28);
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,122,47,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  border:1.5px solid var(--primary);color:var(--primary);background:transparent;
  font-size:15px;font-weight:600;
  transition:all .2s var(--ease);
}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);font-weight:600;font-size:15px;background:none;border:0;padding:0;
}
.btn-ghost i{transition:transform .2s var(--ease)}
.btn-ghost:hover{color:var(--accent)}
.btn-ghost:hover i{transform:translateX(3px)}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.text-link i{transition:transform .2s var(--ease)}
.text-link:hover i{transform:translateX(4px)}

/* ---------- 通用标签 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.chip-primary{background:var(--primary-light);color:var(--primary-dark)}
.chip-accent{background:var(--accent-light);color:var(--accent-dark)}
.chip-mint{background:rgba(23,191,160,.12);color:#0E8C75}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section-tint{background:#fff}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:32px;
}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--primary);margin-bottom:10px;
}
.sec-head h2{font-size:clamp(24px,2.6vw,34px)}
.sec-sub{margin-top:10px;font-size:15px;color:var(--muted);max-width:660px}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:64px 0 72px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#ffffff 0%,var(--page) 100%);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;top:-80px;right:-120px;width:420px;height:420px;
  background:linear-gradient(135deg,rgba(75,46,168,.10),rgba(255,122,47,.10));
  transform:rotate(12deg);border-radius:48px;pointer-events:none;
}
.hero-row{position:relative;z-index:1}
.hero-copy h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.28;
  margin:18px 0 0;
}
.hero-sub{margin-top:16px;font-size:17px;font-weight:600;color:var(--primary-dark)}
.hero-desc{margin-top:14px;font-size:15.5px;color:var(--text);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:28px}
.hero-points{
  display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:28px;
  padding-top:22px;border-top:1px solid var(--line);
}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text);font-weight:600}
.hero-points li i{color:var(--mint);font-size:14px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-xl);
  background:var(--primary-light);
  box-shadow:12px 12px 0 rgba(75,46,168,.12),var(--sh-2);
}

/* ---------- 数据条 ---------- */
.stats-strip{background:#fff;border-bottom:1px solid var(--line);padding:34px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{
  padding-left:18px;border-left:4px solid var(--primary);
}
.stat strong{display:block;font-size:28px;font-weight:800;color:var(--ink);line-height:1.2}
.stat span{font-size:13.5px;color:var(--muted)}

/* ---------- 图文交替 ---------- */
.feature-row{padding:44px 0;border-bottom:1px solid var(--line)}
.feature-row:last-child{border-bottom:0;padding-bottom:0}
.feature-row:first-child{padding-top:0}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-xl);background:var(--primary-light);box-shadow:var(--sh-2);
}
.feature-text h3{font-size:clamp(20px,2vw,24px);margin-bottom:14px}
.feature-text p{font-size:15.5px;color:var(--text)}
.feature-list{margin-top:20px;display:grid;gap:10px}
.feature-list li{
  position:relative;padding-left:16px;font-size:14.5px;color:var(--text);
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:11px;width:4px;height:14px;
  border-radius:2px;background:var(--primary);
}
.feature-list li strong{color:var(--ink)}

/* ---------- 奖励横滑卡组 ---------- */
.reward-track{
  display:flex;gap:24px;overflow-x:auto;padding:6px 4px 20px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:var(--line) transparent;
}
.reward-track::-webkit-scrollbar{height:6px}
.reward-track::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
.reward-card{
  position:relative;flex:0 0 calc((100% - 72px) / 3.5);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;scroll-snap-align:start;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.reward-cover{position:relative}
.reward-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--primary-light)}
.reward-badge{
  position:absolute;left:0;top:14px;
  padding:5px 14px 5px 12px;border-radius:0 6px 6px 0;
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;
  clip-path:polygon(0 0,100% 0,calc(100% - 8px) 50%,100% 100%,0 100%);
}
.reward-body{padding:20px}
.reward-ico{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);font-size:17px;margin-bottom:14px;
}
.reward-body h3{font-size:18px;margin-bottom:8px}
.reward-cond{font-size:13.5px;color:var(--muted)}
.reward-body hr{border:0;height:1px;background:var(--line);margin:16px 0}
.reward-time{font-size:13px;color:var(--text);display:flex;justify-content:space-between}
.reward-time strong{color:var(--ink);font-weight:700}
.track-hint{font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- 任务进度（深色区块） ---------- */
.progress-section{background:var(--night);padding:88px 0}
.progress-section .eyebrow{color:#B9A8F5}
.progress-section h2{color:#fff}
.progress-section .sec-sub{color:rgba(255,255,255,.62)}
.progress-panel{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);
  gap:32px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-xl);
  padding:36px;
}
.progress-left .pn-label{font-size:14px;color:rgba(255,255,255,.62);margin-bottom:10px}
.progress-num{
  font-size:clamp(48px,6vw,64px);font-weight:800;color:#fff;line-height:1;
  letter-spacing:-.01em;
}
.progress-num span{font-size:22px;font-weight:700;color:rgba(255,255,255,.55);margin-left:4px}
.progress-bar-wrap{margin-top:22px}
.progress-bar{
  height:10px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden;
}
.progress-bar i{
  display:block;height:100%;width:78%;border-radius:999px;
  background:linear-gradient(90deg,var(--mint),#5AD9C2);
}
.progress-note{margin-top:16px;font-size:13.5px;color:rgba(255,255,255,.58)}
.task-list{display:grid;gap:12px}
.task{
  display:flex;align-items:center;gap:14px;
  padding:14px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
}
.task-dot{
  width:20px;height:20px;border-radius:50%;flex:0 0 auto;
  border:2px solid rgba(255,255,255,.35);
  display:flex;align-items:center;justify-content:center;font-size:10px;color:transparent;
}
.task.done .task-dot{background:var(--mint);border-color:var(--mint);color:#fff}
.task-name{flex:1 1 auto;font-size:14.5px;color:rgba(255,255,255,.88)}
.task-state{
  font-size:12px;font-weight:700;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.10);color:rgba(255,255,255,.72);white-space:nowrap;
}
.task.done .task-state{background:rgba(23,191,160,.18);color:#5AD9C2}

/* ---------- CTA 条幅 ---------- */
.cta-band{
  background:linear-gradient(102deg,var(--primary) 0%,var(--primary-dark) 46%,var(--accent) 120%);
  padding:56px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);max-width:620px}
.cta-band p{color:rgba(255,255,255,.78);font-size:14.5px;margin-top:10px}
.cta-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.btn-white{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  background:#fff;color:var(--primary-dark);font-weight:700;font-size:15px;border:0;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-white:hover{color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.18)}
.cta-band .btn-ghost{color:#fff}
.cta-band .btn-ghost:hover{color:#fff;opacity:.85}

/* ---------- 最新信息 ---------- */
.news-grid .news-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);color:inherit;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);color:inherit}
.news-media img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--primary-light)}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.news-body h3{
  font-size:18px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.news-card:hover h3{color:var(--primary)}
.news-body p{
  font-size:14px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.news-meta .arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600}
.news-meta .arrow i{transition:transform .2s var(--ease)}
.news-card:hover .news-meta .arrow i{transform:translateX(3px)}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--muted)}
.empty-state p{margin:14px 0 18px;font-size:14.5px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-wrap .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md) !important;
  margin-bottom:14px;background:#fff;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-wrap .accordion-button{
  background:#fff;color:var(--ink);font-size:15.5px;font-weight:700;
  padding:20px 52px 20px 24px;min-height:64px;box-shadow:none;
  border-left:4px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.faq-wrap .accordion-button:not(.collapsed){
  color:var(--primary);border-left-color:var(--primary);background:#fff;
  box-shadow:none;
}
.faq-wrap .accordion-button:focus{box-shadow:none;border-color:transparent;border-left-color:var(--primary)}
.faq-wrap .accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;font-size:13px;color:var(--muted);
  display:flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:50%;background:var(--page);
  transition:transform .25s var(--ease),color .2s var(--ease);
}
.faq-wrap .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--primary)}
.faq-wrap .accordion-body{
  padding:0 24px 22px 24px;font-size:15px;line-height:1.8;color:var(--text);
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--night);color:rgba(255,255,255,.8);padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand span{font-size:19px;font-weight:800;color:#fff}
.footer-col h4{
  font-size:14px;color:rgba(255,255,255,.55);letter-spacing:.08em;
  font-weight:700;margin-bottom:18px;
}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:320px}
.footer-col ul{display:grid;gap:12px}
.footer-col a{
  font-size:15px;color:rgba(255,255,255,.8);
}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 32px;font-size:13.5px;color:rgba(255,255,255,.55);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}

/* ---------- 移动端固定底栏 ---------- */
.mobile-cta-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:rgba(25,19,49,.96);backdrop-filter:blur(8px);
  padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  border-top:1px solid rgba(255,255,255,.12);
}
.mobile-cta-bar a.btn-primary{width:100%;height:46px}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container,.container-fluid{padding-left:24px;padding-right:24px}
  .brand-name{font-size:18px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .progress-section{padding:64px 0}
  .nav-search{display:none}
  .login-link{display:none}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .hdr-nav{margin-top:8px;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .hdr-nav ul{flex-wrap:nowrap;gap:8px;padding-bottom:4px}
  .hdr-nav a{white-space:nowrap;height:36px;font-size:13.5px;padding:0 16px}
  .hero{padding:44px 0 56px}
  .hero-media{margin-top:8px}
  .hero-media img{box-shadow:8px 8px 0 rgba(75,46,168,.12),var(--sh-2)}
  .progress-panel{grid-template-columns:1fr;padding:26px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding-bottom:36px}
}
@media (max-width:767.98px){
  .container,.container-fluid{padding-left:16px;padding-right:16px}
  .row{--bs-gutter-x:20px;--bs-gutter-y:20px}
  .section{padding:56px 0}
  .progress-section{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .reward-card{flex:0 0 calc(100% / 1.15)}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px}
  .cta-actions{width:100%}
  .cta-actions .btn-white{width:100%}
  .cta-actions .btn-ghost{justify-content:center;width:100%}
  .feature-row{padding:32px 0}
  .mobile-cta-bar{display:block}
  body{padding-bottom:78px}
}
@media (max-width:575.98px){
  body{font-size:15px}
  .hero-copy h1{font-size:30px}
  .brand-name{font-size:17px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat strong{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .btn-primary,.btn-outline,.btn-white{height:44px;padding:0 22px;font-size:14.5px}
  .progress-num{font-size:44px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --primary:#4B2EA8;
  --primary-dark:#35207C;
  --primary-light:#EDE8FB;
  --accent:#FF7A2F;
  --accent-dark:#E8641C;
  --accent-light:#FFF1E8;
  --mint:#17BFA0;
  --warn:#E4572E;
  --ink:#1B1630;
  --text:#4A4560;
  --muted:#8B86A3;
  --line:#E7E3F2;
  --page:#F7F5FC;
  --card:#FFFFFF;
  --deep:#191331;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,22,48,.06);
  --sh-2:0 8px 24px rgba(75,46,168,.10);
  --sh-3:0 16px 40px rgba(75,46,168,.16);
  --t-fast:180ms cubic-bezier(.2,.7,.3,1);
  --t-mid:220ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--page);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t-fast),opacity var(--t-fast)}
a:hover{color:var(--primary-dark)}
button,input{font-family:inherit}
h1,h2,h3,h4,h5{color:var(--ink);font-weight:700;letter-spacing:0;margin:0;line-height:1.35}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t-mid);
}
.site-header.scrolled{box-shadow:0 8px 24px rgba(75,46,168,.10)}
.site-header .container{position:relative}
.hdr-top{
  display:flex;
  align-items:center;
  gap:24px;
  height:92px;
  transition:height var(--t-mid);
}
.site-header.scrolled .hdr-top{height:68px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
  font-weight:800;
  font-size:20px;
  letter-spacing:0;
  white-space:nowrap;
}
.brand:hover{color:var(--primary)}
.brand-mark{
  position:relative;
  width:34px;
  height:34px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  flex:0 0 auto;
  overflow:hidden;
}
.brand-mark::before{
  content:"";
  position:absolute;
  left:50%;
  bottom:7px;
  transform:translateX(-50%);
  width:13px;
  height:17px;
  border:2px solid rgba(255,255,255,.95);
  border-bottom:none;
  border-radius:9px 9px 0 0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:50%;
  top:8px;
  transform:translateX(-50%);
  width:8px;
  height:3px;
  border-radius:999px;
  background:var(--accent);
}
.hdr-search-wrap{
  position:relative;
  flex:1 1 auto;
  max-width:46%;
}
.hdr-search{
  display:flex;
  align-items:center;
  height:50px;
  padding-left:20px;
  padding-right:3px;
  background:var(--page);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color var(--t-fast),box-shadow var(--t-fast),background var(--t-fast);
}
.hdr-search-wrap:focus-within .hdr-search{
  background:#fff;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(75,46,168,.16);
}
.hdr-search > i{color:var(--primary);font-size:15px;margin-right:12px}
.hdr-search input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:none;
  background:transparent;
  outline:none;
  font-size:15px;
  color:var(--ink);
}
.hdr-search input::placeholder{color:var(--muted)}
.hdr-search button{
  flex:0 0 auto;
  width:44px;
  height:44px;
  border:none;
  border-radius:13px;
  background:var(--primary);
  color:#fff;
  font-size:15px;
  cursor:pointer;
  transition:background var(--t-fast),transform var(--t-fast);
}
.hdr-search button:hover{background:var(--primary-dark)}
.hdr-search button:active{transform:translateY(1px)}
.hot-panel{
  position:absolute;
  top:calc(100% + 10px);
  left:0;
  right:0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  padding:16px 18px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-6px);
  transition:opacity var(--t-mid),transform var(--t-mid),visibility var(--t-mid);
  z-index:20;
}
.hdr-search-wrap:focus-within .hot-panel{opacity:1;visibility:visible;transform:none}
.hot-panel h5{font-size:13px;color:var(--muted);font-weight:600;margin-bottom:10px;letter-spacing:.04em}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px}
.hot-tags a{
  display:inline-block;
  padding:5px 14px;
  border-radius:var(--r-pill);
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:13px;
  transition:background var(--t-fast),color var(--t-fast);
}
.hot-tags a:hover{background:var(--primary);color:#fff}
.hdr-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex:0 0 auto}
.hdr-login{font-size:15px;color:var(--text)}
.hdr-login:hover{color:var(--primary)}
.btn-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border:none;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--t-fast),transform var(--t-fast),box-shadow var(--t-fast);
}
.btn-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,122,47,.30)}
.btn-cta:active{transform:translateY(0)}
.hdr-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  color:var(--primary);
  font-size:17px;
  cursor:pointer;
}
.hdr-nav{padding-bottom:14px}
.hdr-nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px;padding:0}
.hdr-nav a{
  display:inline-block;
  padding:7px 18px;
  border-radius:var(--r-pill);
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:14.5px;
  font-weight:500;
  transition:transform var(--t-fast),background var(--t-fast),color var(--t-fast);
}
.hdr-nav a:hover{transform:translateY(-1px);background:#E1D9F7;color:var(--primary-dark)}
.hdr-nav a.active{background:var(--primary);color:#fff}
.site-header.scrolled .hdr-nav{padding-bottom:10px}
.hdr-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:16px 0 22px;
}
.hdr-drawer.open{display:block}
.hdr-drawer ul{list-style:none;padding:0}
.hdr-drawer li + li{border-top:1px solid var(--line)}
.hdr-drawer a{
  display:block;
  padding:15px 2px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
}
.hdr-drawer a.active{color:var(--primary)}
.hdr-drawer-note{padding-top:16px;font-size:13px;color:var(--muted)}
.read-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:transparent;
  pointer-events:none;
}
.read-progress span{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--primary) 0%,var(--accent) 100%);
  transition:width 80ms linear;
}

/* ============ 文章布局 ============ */
.page-main{padding:36px 0 88px}
.breadcrumb-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:28px;
}
.breadcrumb-line a{color:var(--muted)}
.breadcrumb-line a:hover{color:var(--primary)}
.breadcrumb-line .sep{color:#C9C3DC}
.breadcrumb-line .current{color:var(--text);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-layout{
  display:grid;
  grid-template-columns:200px minmax(0,760px);
  gap:60px;
  justify-content:center;
  align-items:start;
}
.toc{
  position:sticky;
  top:120px;
  max-height:calc(100vh - 160px);
  overflow-y:auto;
}
.toc h5{
  font-size:13px;
  font-weight:700;
  color:var(--muted);
  letter-spacing:.08em;
  margin-bottom:14px;
}
.toc ul{list-style:none;padding:0;border-left:1px solid var(--line)}
.toc li a{
  display:block;
  padding:6px 0 6px 14px;
  margin-left:-1px;
  border-left:2px solid transparent;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.6;
}
.toc li a:hover{color:var(--primary)}
.toc li a.active{color:var(--primary);font-weight:700;border-left-color:var(--primary)}
.article-head{padding-bottom:26px;border-bottom:1px solid var(--line);margin-bottom:36px}
.article-head h1{
  font-size:clamp(30px,4.2vw,40px);
  line-height:1.35;
  font-weight:800;
  margin-bottom:18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13.5px;color:var(--muted)}
.badge-cat{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:13px;
  font-weight:600;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#CFC9E0}
.meta-num{font-variant-numeric:tabular-nums}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--text);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 22px}
.article-body h2{
  font-size:24px;
  line-height:1.4;
  margin:44px 0 16px;
  padding-left:13px;
  border-left:5px solid var(--primary);
}
.article-body h3{
  font-size:20px;
  margin:32px 0 12px;
}
.article-body h4{font-size:17px;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px}
.article-body li{margin-bottom:8px}
.article-body ol{list-style:none;counter-reset:li;padding-left:0}
.article-body ol > li{position:relative;padding-left:30px;counter-increment:li}
.article-body ol > li::before{
  content:counter(li) ".";
  position:absolute;
  left:0;
  top:0;
  color:var(--primary);
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.article-body img{border-radius:16px;margin:8px 0 10px;height:auto}
.article-body figure{margin:0 0 22px}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.article-body blockquote{
  margin:0 0 22px;
  padding:16px 22px;
  background:var(--primary-light);
  border-left:4px solid var(--primary);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--primary-dark);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:0 0 24px;
  font-size:15px;
  background:#fff;
  border-radius:var(--r-md);
  overflow:hidden;
}
.article-body thead th{
  background:var(--primary-light);
  color:var(--primary-dark);
  font-weight:700;
  text-align:left;
}
.article-body th,.article-body td{padding:13px 16px;border:none}
.article-body tbody tr:nth-child(even){background:#FAF9FE}
.article-body tbody tr + tr{border-top:1px solid var(--line)}
.article-body a{border-bottom:1px solid rgba(75,46,168,.35)}
.article-empty{
  padding:64px 24px;
  text-align:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.article-empty i{font-size:34px;color:var(--primary);margin-bottom:16px;display:block}
.article-empty p{font-size:17px;color:var(--ink);font-weight:600;margin-bottom:10px}
.article-empty span{display:block;font-size:14px;color:var(--muted);margin-bottom:22px}
.btn-primary-solid{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:background var(--t-fast),transform var(--t-fast),box-shadow var(--t-fast);
}
.btn-primary-solid:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,47,.28)}
.btn-outline-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border:1.5px solid var(--primary);
  border-radius:var(--r-pill);
  background:transparent;
  color:var(--primary);
  font-size:15px;
  font-weight:600;
  transition:background var(--t-fast),color var(--t-fast),transform var(--t-fast);
}
.btn-outline-line:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px)}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
}
.link-arrow i{transition:transform var(--t-fast)}
.link-arrow:hover i{transform:translateX(3px)}

/* ============ 相关推荐 ============ */
.section-block{margin-top:72px}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{font-size:clamp(22px,2.4vw,28px)}
.section-head p{font-size:14px;color:var(--muted);margin-top:6px}
.rel-list{display:flex;flex-direction:column;gap:14px}
.rel-item{
  display:flex;
  gap:16px;
  padding:14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:transform var(--t-mid),box-shadow var(--t-mid),border-color var(--t-mid);
}
.rel-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD4F4}
.rel-thumb{
  flex:0 0 96px;
  width:96px;
  height:96px;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--primary-light);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-main{display:flex;flex-direction:column;justify-content:center;min-width:0}
.rel-title{
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-item:hover .rel-title{color:var(--primary)}
.rel-date{font-size:13px;color:var(--muted);margin-top:8px;font-variant-numeric:tabular-nums}
.back-links{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:40px;
  padding-top:28px;
  border-top:1px solid var(--line);
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--deep);
  color:rgba(255,255,255,.8);
  padding:72px 0 0;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:18px;
  font-weight:800;
  margin-bottom:14px;
}
.site-footer .brand-mark{width:30px;height:30px;border-radius:10px}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62)}
.footer-col h4{
  font-size:13px;
  color:rgba(255,255,255,.55);
  letter-spacing:.12em;
  font-weight:700;
  margin-bottom:18px;
}
.footer-col ul{list-style:none;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:15px;color:rgba(255,255,255,.8)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:56px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,760px);gap:0}
  .toc{display:none}
}
@media (max-width:991.98px){
  .container{padding-left:24px;padding-right:24px}
  .hdr-top{height:auto;flex-wrap:wrap;gap:12px;padding:14px 0}
  .site-header.scrolled .hdr-top{height:auto;padding:12px 0}
  .brand{font-size:18px}
  .hdr-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
  .hdr-actions{display:none}
  .hdr-search-wrap{order:3;flex:0 0 100%;max-width:none}
  .hdr-search{height:46px;padding-right:2px}
  .hdr-search button{width:42px;height:42px;border-radius:var(--r-pill)}
  .hdr-nav{display:none}
  .page-main{padding:24px 0 64px}
  .site-footer{padding-top:56px;margin-top:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media (max-width:767.98px){
  .article-head h1{font-size:clamp(28px,6vw,34px)}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin:36px 0 14px}
  .article-body h3{font-size:18px;margin:26px 0 10px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .rel-thumb{flex:0 0 80px;width:80px;height:80px}
  .back-links{flex-direction:column;align-items:stretch}
  .back-links .btn-outline-line,.back-links .link-arrow{justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .brand{font-size:17px}
  .btn-primary-solid,.btn-outline-line{height:44px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category1 */
:root{
  --brand:#4B2EA8;
  --brand-d:#35207C;
  --brand-l:#EDE8FB;
  --accent:#FF7A2F;
  --accent-d:#E8641C;
  --accent-l:#FFF1E8;
  --mint:#17BFA0;
  --warn:#E4572E;
  --ink:#1B1630;
  --text:#4A4560;
  --muted:#8B86A3;
  --line:#E7E3F2;
  --page:#F7F5FC;
  --card:#FFFFFF;
  --dark:#191331;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --r-xl:28px;
  --sh-1:0 1px 2px rgba(27,22,48,.06);
  --sh-2:0 8px 24px rgba(75,46,168,.10);
  --sh-3:0 16px 40px rgba(75,46,168,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:0;line-height:1.34;}
p{margin:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent-d);}
img{max-width:100%;display:block;object-fit:cover;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1400px){.container{max-width:1320px;}}
@media (max-width:991.98px){.container{padding:0 24px;}}
@media (max-width:575.98px){.container{padding:0 16px;}}

/* ============ 头部 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.97);
  backdrop-filter:saturate(170%) blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-shrink{
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(27,22,48,.07);
}
.hdr-top{
  display:flex;
  align-items:center;
  gap:24px;
  padding:20px 0;
  transition:padding .25s var(--ease);
}
.site-header.is-shrink .hdr-top{padding:9px 0;}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{color:var(--brand);}
.brand-mark{
  position:relative;
  width:28px;
  height:28px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
  width:10px;
  height:14px;
  border:2px solid #fff;
  border-bottom:0;
  border-radius:6px 6px 0 0;
}
.brand-text{
  font-size:20px;
  font-weight:800;
  letter-spacing:0;
  white-space:nowrap;
}
.hdr-search{
  position:relative;
  flex:1 1 auto;
  max-width:620px;
  display:flex;
  align-items:center;
  height:50px;
  margin:0 auto;
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  padding:0 4px 0 18px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.hdr-search:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(75,46,168,.16);
}
.hdr-search > i{
  color:var(--muted);
  font-size:15px;
  margin-right:10px;
}
.hdr-search input{
  flex:1 1 auto;
  border:0;
  outline:none;
  background:transparent;
  font-size:15px;
  color:var(--ink);
  min-width:0;
}
.hdr-search input::placeholder{color:var(--muted);}
.hdr-search button{
  flex:0 0 auto;
  width:42px;
  height:42px;
  border:0;
  border-radius:14px;
  background:var(--brand);
  color:#fff;
  cursor:pointer;
  transition:background .2s var(--ease);
}
.hdr-search button:hover{background:var(--brand-d);}
.hdr-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex:0 0 auto;
}
.hdr-login{
  font-size:15px;
  font-weight:600;
  color:var(--text);
}
.hdr-login:hover{color:var(--brand);}
.btn-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:999px;
  border:1.5px solid var(--brand);
  background:transparent;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-cta:hover{background:var(--brand-l);color:var(--brand-d);transform:translateY(-1px);}
.hdr-burger{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
  color:var(--ink);
  font-size:17px;
  cursor:pointer;
}
.hdr-nav{border-top:1px solid var(--line);}
.hdr-nav ul{
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 0;
}
.hdr-nav a{
  display:inline-block;
  padding:8px 18px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  background:#F2EFFA;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.hdr-nav a:hover{background:var(--brand-l);color:var(--brand-d);transform:translateY(-1px);}
.hdr-nav a.active{background:var(--brand);color:#fff;}

/* ============ 通用按钮 ============ */
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border:0;
  border-radius:999px;
  background:var(--accent);
  color:#fff;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-main:hover{background:var(--accent-d);color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(232,100,28,.28);}
.btn-main:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:999px;
  border:1.5px solid rgba(255,255,255,.75);
  background:transparent;
  color:#fff;
  font-size:16px;
  font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-ghost:hover{background:#fff;color:var(--brand-d);border-color:#fff;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow i{transition:transform .2s var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}

/* ============ 页头 ============ */
.page-head{
  position:relative;
  min-height:264px;
  display:flex;
  align-items:center;
  background:
    linear-gradient(90deg,rgba(53,32,124,.86) 0%,rgba(75,46,168,.62) 55%,rgba(75,46,168,.42) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
}
.page-head .container{position:relative;z-index:2;padding-top:44px;padding-bottom:44px;}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.78);
  margin-bottom:18px;
}
.crumbs a{color:rgba(255,255,255,.85);}
.crumbs a:hover{color:#fff;}
.crumbs span.sep{opacity:.6;}
.page-head h1{
  color:#fff;
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.28;
  max-width:820px;
}
.page-head .lead{
  margin-top:16px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.9);
  max-width:660px;
}
.head-facts{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.fact{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  font-size:14px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.fact i{color:#7BE3CD;}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section.alt{background:#fff;}
.section.tint{background:var(--brand-l);}
.sec-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:32px;
}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);}
.sec-head p{
  margin-top:12px;
  max-width:720px;
  font-size:16px;
  color:var(--text);
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--brand);
  margin-bottom:12px;
}
.kicker::before{
  content:"";
  width:18px;
  height:4px;
  border-radius:2px;
  background:var(--accent);
}

/* ============ 准备清单 ============ */
.prep-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.prep-item{
  display:flex;
  gap:14px;
  padding:22px 24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.prep-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.prep-dot{
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:50%;
  background:var(--mint);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  margin-top:3px;
}
.prep-item h3{font-size:18px;margin-bottom:6px;}
.prep-item p{font-size:15px;line-height:1.75;color:var(--text);}

/* ============ 时间轴 ============ */
.timeline{
  position:relative;
  max-width:920px;
  margin:0 auto;
  padding-left:8px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:31px;
  top:12px;
  bottom:12px;
  width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(75,46,168,.15));
}
.tl-item{
  position:relative;
  padding-left:76px;
  margin-bottom:28px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-num{
  position:absolute;
  left:0;
  top:2px;
  width:48px;
  height:48px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--brand);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  z-index:2;
}
.tl-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:24px 26px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD4F4;}
.tl-card h3{font-size:20px;margin-bottom:10px;}
.tl-card p{font-size:15px;line-height:1.8;}
.tl-tip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:14px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  background:var(--accent-l);
  color:#B54A10;
  font-weight:600;
}
.tl-tip.mint{background:rgba(23,191,160,.12);color:#0E8A73;}
.tl-tip.violet{background:var(--brand-l);color:var(--brand-d);}

/* ============ 设备对照 ============ */
.device-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.device-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:28px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.device-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.device-ico{
  width:42px;
  height:42px;
  border-radius:12px;
  background:var(--brand-l);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
}
.device-card h3{font-size:20px;}
.device-card ul li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  line-height:1.8;
  margin-bottom:10px;
}
.device-card ul li:last-child{margin-bottom:0;}
.device-card ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--brand);
}

/* ============ 卡点列表 ============ */
.issue-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.issue-item{
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid var(--warn);
  border-radius:var(--r-m);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.issue-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.issue-item h3{
  font-size:17px;
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:10px;
}
.issue-item h3 i{color:var(--warn);font-size:15px;}
.issue-item p{font-size:15px;line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--r-m);
  background:#fff;
  margin-bottom:14px;
  overflow:hidden;
}
.faq .accordion-button{
  width:100%;
  min-height:64px;
  padding:18px 22px;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  background:#fff;
  box-shadow:none!important;
  border:0;
  border-radius:0;
}
.faq .accordion-button:not(.collapsed){
  color:var(--brand);
  box-shadow:inset 4px 0 0 0 var(--brand)!important;
  background:#fff;
}
.faq .accordion-button::after{
  transition:transform .22s var(--ease);
  filter:invert(24%) sepia(66%) saturate(2613%) hue-rotate(232deg) brightness(84%) contrast(94%);
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq .accordion-body{
  padding:4px 22px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--text);
  border-top:1px solid var(--line);
}

/* ============ 相关栏目 ============ */
.rec-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rec-card{
  display:block;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  box-shadow:var(--sh-1);
  color:inherit;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);color:inherit;}
.rec-thumb{
  position:relative;
  aspect-ratio:16/9;
  background:var(--brand-l);
  overflow:hidden;
}
.rec-thumb img{width:100%;height:100%;transition:transform .35s var(--ease);}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.rec-body{padding:20px 22px 22px;}
.rec-body h3{font-size:19px;margin-bottom:8px;transition:color .2s var(--ease);}
.rec-card:hover .rec-body h3{color:var(--brand);}
.rec-body p{font-size:14px;line-height:1.75;color:var(--muted);}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--brand-l);
  color:var(--brand-d);
  margin-bottom:12px;
}
.tag.orange{background:var(--accent-l);color:#B54A10;}
.tag.mint{background:rgba(23,191,160,.13);color:#0E8A73;}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:56px 0;
  background:linear-gradient(102deg,var(--brand) 0%,#6A3FCB 48%,var(--accent) 100%);
  color:#fff;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-40px;
  width:240px;
  height:200%;
  background:rgba(255,255,255,.08);
  transform:rotate(12deg);
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.cta-inner h2{
  color:#fff;
  font-size:clamp(22px,2.4vw,30px);
  max-width:640px;
}
.cta-inner p{
  margin-top:10px;
  font-size:15px;
  color:rgba(255,255,255,.86);
  max-width:600px;
}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}
.cta-actions .link-arrow{color:#fff;}
.cta-actions .link-arrow:hover{color:#fff;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.8);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand .brand-mark{width:26px;height:26px;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:.08em;
  color:rgba(255,255,255,.55);
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  font-size:15px;
  color:rgba(255,255,255,.82);
}
.footer-col ul a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 32px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .hdr-top{flex-wrap:wrap;gap:12px;padding:14px 0;}
  .site-header.is-shrink .hdr-top{padding:10px 0;}
  .brand-text{font-size:17px;}
  .hdr-actions{display:none;}
  .hdr-burger{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .hdr-search{order:3;flex:1 1 100%;max-width:none;margin:0;height:48px;}
  .hdr-nav ul{overflow-x:auto;flex-wrap:nowrap;padding:10px 0;scrollbar-width:none;}
  .hdr-nav ul::-webkit-scrollbar{display:none;}
  .hdr-nav a{white-space:nowrap;}
  .section{padding:56px 0;}
  .page-head .container{padding-top:36px;padding-bottom:36px;}
  .device-grid,.issue-list{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .prep-grid{grid-template-columns:1fr;}
  .timeline::before{left:23px;}
  .tl-item{padding-left:60px;}
  .tl-num{width:40px;height:40px;font-size:15px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
  .sec-head{align-items:flex-start;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .brand-text{font-size:17px;}
  .btn-main,.btn-ghost{height:44px;font-size:15px;}
  .hdr-search{height:46px;}
  .hdr-search button{width:38px;height:38px;border-radius:12px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}

/* roulang page: category2 */
:root{
  --primary:#4B2EA8;
  --primary-deep:#35207C;
  --primary-soft:#EDE8FB;
  --accent:#FF7A2F;
  --accent-deep:#E8641C;
  --accent-soft:#FFF1E8;
  --mint:#17BFA0;
  --mint-soft:rgba(23,191,160,.14);
  --warn:#E4572E;
  --ink:#1B1630;
  --text:#4A4560;
  --muted:#8B86A3;
  --line:#E7E3F2;
  --page:#F7F5FC;
  --card:#FFFFFF;
  --night:#191331;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,22,48,.06);
  --sh-2:0 8px 24px rgba(75,46,168,.10);
  --sh-3:0 16px 40px rgba(75,46,168,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent-deep);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:0;line-height:1.35;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;width:100%;margin:0 auto;padding:0 32px;}
@media (min-width:1400px){.container{max-width:1320px;}}
@media (max-width:991px){.container{padding:0 24px;}}
@media (max-width:575px){.container{padding:0 16px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-shrink{
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(27,22,48,.07);
}
.hdr-top{
  display:flex;
  align-items:center;
  gap:24px;
  height:92px;
  transition:height .25s var(--ease);
}
.site-header.is-shrink .hdr-top{height:68px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  position:relative;
  width:38px;
  height:38px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  overflow:hidden;
  flex:0 0 auto;
}
.brand-mark::before{
  content:"";
  position:absolute;
  left:10px;
  top:10px;
  width:11px;
  height:18px;
  border-left:3px solid #fff;
  border-top:3px solid rgba(255,255,255,.92);
  border-bottom:3px solid rgba(255,255,255,.92);
  border-radius:2px;
  transform:skewX(-12deg);
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:8px;
  top:50%;
  width:9px;
  height:3px;
  background:var(--accent);
  transform:translateY(-50%) skewX(-12deg);
}
.brand-text{
  font-size:20px;
  font-weight:800;
  color:var(--ink);
  white-space:nowrap;
  letter-spacing:0;
}
.hdr-search{flex:1 1 auto;max-width:46%;position:relative;}
.search-box{
  display:flex;
  align-items:center;
  height:50px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:#fff;
  padding:0 6px 0 18px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(75,46,168,.16);}
.search-box svg{flex:0 0 auto;width:18px;height:18px;stroke:var(--muted);fill:none;stroke-width:1.8;}
.search-box input{
  flex:1 1 auto;
  border:0;
  outline:none;
  background:transparent;
  height:100%;
  padding:0 12px;
  color:var(--ink);
  font-size:15px;
}
.search-box input::placeholder{color:var(--muted);}
.search-box button[type="submit"]{
  flex:0 0 auto;
  height:38px;
  padding:0 20px;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  font-weight:600;
  font-size:14px;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.search-box button[type="submit"]:hover{background:var(--primary-deep);transform:translateY(-1px);}
.hot-terms{
  position:absolute;
  left:0;
  right:0;
  top:calc(100% + 10px);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  padding:14px 16px;
  display:none;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.hot-terms.show{display:flex;}
.hot-terms span{font-size:13px;color:var(--muted);margin-right:4px;}
.hot-terms a{
  font-size:13px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:var(--primary-soft);
  color:var(--primary);
}
.hot-terms a:hover{background:var(--primary);color:#fff;}
.hdr-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;margin-left:auto;}
.hdr-login{font-size:15px;color:var(--text);}
.hdr-login:hover{color:var(--primary);}
.btn-primary-c{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:#fff;
  font-weight:600;
  font-size:16px;
  box-shadow:0 6px 16px rgba(255,122,47,.28);
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary-c:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,47,.32);}
.btn-primary-c:active{transform:translateY(1px);}
.btn-outline-c{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  border:1.5px solid var(--primary);
  color:var(--primary);
  font-weight:600;
  font-size:16px;
  background:transparent;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-outline-c:hover{background:var(--primary-soft);color:var(--primary-deep);transform:translateY(-2px);}
.btn-text-c{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary);}
.btn-text-c .arw{transition:transform .2s var(--ease);}
.btn-text-c:hover .arw{transform:translateX(3px);}
.btn-sm-c{height:42px;padding:0 20px;font-size:15px;}
.hdr-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.hdr-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.hdr-bottom{border-top:1px solid var(--line);}
.site-header.is-shrink .hdr-bottom{border-top-color:transparent;}
.hdr-nav ul{display:flex;gap:10px;padding:12px 0;}
.hdr-nav a{
  display:inline-block;
  padding:8px 20px;
  border-radius:var(--r-pill);
  background:var(--primary-soft);
  color:var(--primary-deep);
  font-size:15px;
  font-weight:600;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.hdr-nav a:hover{transform:translateY(-1px);background:#e3dbfa;}
.hdr-nav a.active{background:var(--primary);color:#fff;}
.hdr-nav a.active:hover{background:var(--primary-deep);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:20px 0 26px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer ul{display:flex;flex-direction:column;gap:4px;margin-bottom:18px;}
.mobile-drawer ul a{
  display:block;
  padding:14px 4px;
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer ul a.active{color:var(--primary);}
.mobile-drawer .drawer-note{font-size:13px;color:var(--muted);}

/* ---------- page head ---------- */
.page-head{
  position:relative;
  overflow:hidden;
  background:var(--night);
  padding:88px 0 76px;
  text-align:center;
}
.page-head-bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  filter:saturate(.55);
  opacity:.36;
}
.page-head::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(102deg,rgba(53,32,124,.86) 0%,rgba(75,46,168,.74) 52%,rgba(255,122,47,.42) 100%);
}
.page-head-inner{position:relative;z-index:2;}
.breadcrumb-line{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:18px;
}
.breadcrumb-line a{color:rgba(255,255,255,.82);}
.breadcrumb-line a:hover{color:#fff;}
.page-head h1{
  color:#fff;
  font-size:clamp(30px,4.2vw,50px);
  font-weight:800;
  line-height:1.3;
  max-width:900px;
  margin:0 auto;
}
.page-head-sub{
  margin:20px auto 0;
  max-width:720px;
  color:rgba(255,255,255,.86);
  font-size:17px;
  line-height:1.8;
}
.page-head-tags{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:26px;}
.page-head-tags span{
  font-size:13px;
  padding:6px 16px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;
}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);}
.section-head h2{font-size:clamp(24px,2.6vw,34px);}
.section-head p{margin-top:12px;color:var(--text);font-size:16px;}

/* ---------- stat strip ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--sh-2);
  overflow:hidden;
}
.stat-strip .stat{
  padding:26px 28px;
  border-right:1px solid var(--line);
}
.stat-strip .stat:last-child{border-right:0;}
.stat-strip .num{
  display:block;
  font-size:28px;
  font-weight:800;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.stat-strip .lbl{display:block;margin-top:6px;font-size:14px;color:var(--muted);}

/* ---------- feature rows ---------- */
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.feature-row + .feature-row{margin-top:72px;}
.feature-row.reverse .feature-media{order:2;}
.feature-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  aspect-ratio:16/10;
  background:var(--primary-soft);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-row:hover .feature-media{transform:translateY(-4px);box-shadow:var(--sh-3);}
.feature-body h3{font-size:21px;margin-bottom:14px;}
.feature-body p{font-size:16px;line-height:1.85;}
.point-group{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.point-group li{
  border-left:4px solid var(--primary);
  padding:2px 0 2px 14px;
  font-size:15px;
  color:var(--text);
}
.point-group li strong{color:var(--ink);font-weight:700;}

/* ---------- check list ---------- */
.check-list{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:12px 28px;
}
.check-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.check-list li:last-child{border-bottom:0;}
.check-list .tick{
  flex:0 0 auto;
  width:24px;
  height:24px;
  border-radius:50%;
  background:var(--mint-soft);
  color:var(--mint);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:6px;
}
.check-list .tick svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2.6;}
.check-list .item-title{display:block;color:var(--ink);font-weight:600;font-size:16px;}
.check-list .item-desc{display:block;margin-top:4px;font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq .accordion-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  margin-bottom:12px;
}
.faq .accordion-button{
  min-height:64px;
  padding:10px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  box-shadow:none;
  border-radius:0;
  line-height:1.7;
}
.faq .accordion-button::after{
  content:"";
  width:12px;
  height:12px;
  background-image:none;
  border-right:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:rotate(45deg);
  transition:transform .22s var(--ease);
  margin-left:auto;
  flex:0 0 auto;
}
.faq .accordion-button:not(.collapsed){
  color:var(--primary-deep);
  background:#fff;
  box-shadow:inset 4px 0 0 var(--primary);
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq .accordion-button:focus{box-shadow:inset 4px 0 0 var(--primary);outline:none;}
.faq .accordion-body{
  padding:6px 22px 24px;
  font-size:15px;
  line-height:1.8;
  color:var(--text);
}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(102deg,var(--primary) 0%,var(--primary-deep) 46%,var(--accent) 100%);
  border-radius:var(--r-xl);
  padding:48px 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band .cta-copy{max-width:640px;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);}
.cta-band p{color:rgba(255,255,255,.88);margin-top:10px;font-size:16px;}
.cta-band .cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.btn-invert{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-pill);
  background:#fff;
  color:var(--primary-deep);
  font-weight:700;
  font-size:16px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-invert:hover{transform:translateY(-2px);color:var(--primary-deep);box-shadow:0 14px 30px rgba(27,22,48,.24);}
.link-invert{color:#fff;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-invert:hover{color:#fff;text-decoration:underline;}

/* ---------- guide cards ---------- */
.guide-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px;
}
.guide-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.guide-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft);}
.guide-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.guide-card:hover .guide-thumb img{transform:scale(1.04);}
.guide-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.badge-c{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:var(--r-pill);
}
.badge-primary{background:var(--primary-soft);color:var(--primary);}
.badge-accent{background:var(--accent-soft);color:var(--accent-deep);}
.badge-mint{background:var(--mint-soft);color:#0E8B74;}
.guide-body h3{font-size:19px;line-height:1.5;}
.guide-body p{font-size:14px;line-height:1.75;color:var(--muted);}
.guide-meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
}
.guide-meta .go{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:4px;}
.guide-card:hover .guide-meta .go .arw{transform:translateX(3px);}
.guide-meta .go .arw{transition:transform .2s var(--ease);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--night);
  color:rgba(255,255,255,.8);
  padding:72px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:18px;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-brand .brand-mark::before{left:9px;top:9px;width:10px;height:16px;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);}
.footer-col h4{
  font-size:14px;
  color:rgba(255,255,255,.6);
  letter-spacing:.06em;
  margin-bottom:18px;
  font-weight:600;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col ul a{font-size:15px;color:rgba(255,255,255,.8);}
.footer-col ul a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:56px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.58);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hdr-search{max-width:38%;}
  .feature-row{gap:40px;}
}
@media (max-width:991px){
  .hdr-top{height:auto;padding:14px 0;flex-wrap:wrap;gap:14px;}
  .site-header.is-shrink .hdr-top{height:auto;}
  .brand-text{font-size:17px;}
  .hdr-search{order:3;flex:1 1 100%;max-width:100%;}
  .hdr-actions .hdr-login{display:none;}
  .hdr-actions .btn-primary-c{display:none;}
  .hdr-toggle{display:flex;}
  .hdr-bottom{display:none;}
  .mobile-drawer ul{flex-direction:column;}
  .page-head{padding:64px 0 56px;}
  .section{padding:64px 0;}
  .feature-row{grid-template-columns:1fr;gap:26px;}
  .feature-row.reverse .feature-media{order:0;}
  .feature-row + .feature-row{margin-top:52px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-strip .stat:nth-child(2){border-right:0;}
  .stat-strip .stat:nth-child(1),
  .stat-strip .stat:nth-child(2){border-bottom:1px solid var(--line);}
  .guide-grid{grid-template-columns:1fr;gap:24px;}
  .cta-band{padding:40px 32px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:40px;}
}
@media (max-width:767px){
  .page-head h1{font-size:clamp(28px,7vw,36px);}
  .search-box button[type="submit"]{display:none;}
  .hdr-search{position:relative;}
  .section{padding:56px 0;}
  .check-list{padding:6px 20px;}
  .cta-band{border-radius:var(--r-lg);}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn-invert{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .btn-primary-c,.btn-outline-c{height:44px;font-size:15px;padding:0 22px;}
  .btn-invert{height:44px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-strip .stat{border-right:0;border-bottom:1px solid var(--line);}
  .stat-strip .stat:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .page-head{padding:52px 0 46px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --brand:#4B2EA8;
  --brand-deep:#35207C;
  --brand-light:#EDE8FB;
  --accent:#FF7A2F;
  --accent-deep:#E8641C;
  --accent-light:#FFF1E8;
  --mint:#17BFA0;
  --warn:#E4572E;
  --ink:#1B1630;
  --text:#4A4560;
  --muted:#8B86A3;
  --line:#E7E3F2;
  --page:#F7F5FC;
  --card:#FFFFFF;
  --night:#191331;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,22,48,.06);
  --sh-2:0 8px 24px rgba(75,46,168,.10);
  --sh-3:0 16px 40px rgba(75,46,168,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--page);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{color:var(--ink);font-weight:800;line-height:1.35;letter-spacing:0;margin:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{width:100%;max-width:1232px;margin:0 auto;padding-left:32px;padding-right:32px;}
@media (max-width:1199.98px){.container{padding-left:24px;padding-right:24px;}}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px;}}

/* ========== 按钮体系 ========== */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),background-color .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease);
}
.btn-main{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.28);}
.btn-main:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,47,.34);}
.btn-main:active{transform:translateY(1px);}
.btn-line{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-line:hover{background:var(--brand-light);color:var(--brand-deep);transform:translateY(-2px);}
.btn-white{background:#fff;color:var(--brand-deep);}
.btn-white:hover{background:#F4F1FF;color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-full{width:100%;}
.link-arrow{display:inline-flex;align-items:center;font-weight:600;color:var(--brand);}
.link-arrow::after{content:"→";margin-left:6px;transition:transform .2s var(--ease);}
.link-arrow:hover::after{transform:translateX(3px);}
.link-arrow.on-dark{color:#fff;}
.link-arrow.on-dark:hover{color:#FFD8C0;}

/* ========== 顶栏 ========== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(27,22,48,.07);}
.hdr-top{display:flex;align-items:center;gap:24px;padding:20px 0;transition:padding .25s var(--ease);}
.site-header.is-scrolled .hdr-top{padding:10px 0;}
.hdr-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand) 0%,#7A5BE0 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.logo-mark svg{width:21px;height:21px;}
.logo-text{font-size:20px;font-weight:800;color:var(--ink);white-space:nowrap;}
.hdr-logo:hover .logo-text{color:var(--brand);}

.hdr-search{
  position:relative;flex:1 1 auto;max-width:520px;
  display:flex;align-items:center;height:50px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 6px 0 18px;box-shadow:var(--sh-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.hdr-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(75,46,168,.16);}
.hdr-search .search-icon{width:18px;height:18px;color:var(--muted);flex:0 0 auto;}
.hdr-search input{flex:1 1 auto;min-width:0;height:100%;border:0;outline:0;background:transparent;padding:0 12px;font-size:15px;color:var(--ink);}
.hdr-search input::placeholder{color:var(--muted);}
.hdr-search .search-btn{
  flex:0 0 auto;width:40px;height:40px;border:0;border-radius:12px;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background-color .2s var(--ease);
}
.hdr-search .search-btn:hover{background:var(--brand-deep);}
.hdr-search .search-btn svg{width:17px;height:17px;}
.search-hot{
  position:absolute;left:0;right:0;top:calc(100% + 10px);z-index:20;
  display:none;flex-wrap:wrap;gap:8px;
  padding:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-2);
}
.hdr-search:focus-within .search-hot{display:flex;}
.search-hot .hot-label{width:100%;font-size:12px;color:var(--muted);letter-spacing:.06em;}
.hot-chip{padding:5px 13px;border-radius:var(--r-pill);background:var(--brand-light);color:var(--brand-deep);font-size:13px;font-weight:500;}
.hot-chip:hover{background:var(--accent-light);color:var(--accent-deep);}

.hdr-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;margin-left:auto;}
.hdr-login{font-size:14px;color:var(--text);white-space:nowrap;}
.hdr-login:hover{color:var(--brand);}

.hdr-nav ul{display:flex;flex-wrap:wrap;gap:8px;padding:8px 0 14px;transition:padding .25s var(--ease);}
.site-header.is-scrolled .hdr-nav ul{padding:4px 0 10px;}
.hdr-nav a{
  display:inline-block;padding:8px 18px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand-deep);font-size:15px;font-weight:600;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
}
.hdr-nav a:hover{transform:translateY(-1px);background:#E2D9F8;color:var(--brand-deep);}
.hdr-nav a.active{background:var(--brand);color:#fff;}
.hdr-nav a.active:hover{background:var(--brand-deep);color:#fff;}

.hdr-toggle{
  display:none;width:44px;height:44px;margin-left:auto;flex:0 0 auto;
  align-items:center;justify-content:center;border:1px solid var(--line);border-radius:12px;
  background:#fff;color:var(--ink);cursor:pointer;
}
.hdr-toggle svg{width:20px;height:20px;}
.hdr-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:20px 0 26px;}
.hdr-drawer ul{display:flex;flex-direction:column;gap:6px;margin-bottom:18px;}
.hdr-drawer ul a{display:block;padding:14px 16px;border-radius:var(--r-md);font-size:17px;font-weight:600;color:var(--ink);background:#FBFAFE;}
.hdr-drawer ul a.active{background:var(--brand);color:#fff;}
.hdr-drawer .drawer-note{font-size:13px;color:var(--muted);}
.hdr-search--mobile{display:none;}

/* ========== 分类页头 ========== */
.page-hero{position:relative;overflow:hidden;color:#fff;padding:56px 0 84px;background:var(--brand-deep);}
.page-hero .hero-visual{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 35%;opacity:.32;
}
.page-hero .hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(53,32,124,.94) 0%,rgba(75,46,168,.82) 52%,rgba(75,46,168,.58) 100%);
}
.page-hero .hero-slash{
  position:absolute;top:-60px;right:-40px;width:340px;height:280px;
  background:repeating-linear-gradient(112deg,rgba(255,122,47,.42) 0 10px,transparent 10px 26px);
  transform:skewX(-12deg);pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.85fr);gap:48px;align-items:start;}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;}
.crumbs a{color:rgba(255,255,255,.86);}
.crumbs a:hover{color:#fff;}
.page-hero h1{color:#fff;font-size:clamp(30px,4.2vw,50px);letter-spacing:0;}
.hero-sub{margin-top:16px;max-width:640px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.86);}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags span{
  display:inline-block;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.34);background:rgba(255,255,255,.10);
  font-size:13px;color:#fff;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;}

.hero-card{
  background:#fff;color:var(--text);border-radius:var(--r-lg);
  box-shadow:0 24px 60px rgba(15,8,45,.30);
  padding:26px;margin-top:8px;
}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;}
.hero-card-date{font-size:12px;color:var(--muted);}
.chip{display:inline-block;padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;}
.chip-brand{background:var(--brand-light);color:var(--brand-deep);}
.chip-accent{background:var(--accent-light);color:var(--accent-deep);}
.chip-mint{background:#E3F8F3;color:#0E8E76;}
.hero-stat{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line);}
.hero-stat strong{display:block;font-size:32px;line-height:1.2;color:var(--ink);font-weight:800;}
.hero-stat span{font-size:13px;color:var(--muted);}
.hero-progress{padding:20px 0;border-bottom:1px solid var(--line);}
.hp-row{display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--text);margin-bottom:10px;}
.hp-row strong{color:var(--ink);font-weight:700;}
.hp-bar{height:10px;border-radius:var(--r-pill);background:#EDEAF7;overflow:hidden;}
.hp-bar i{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--mint) 0%,#3FD5B6 100%);}
.hero-card-list{padding-top:18px;display:flex;flex-direction:column;gap:12px;}
.hero-card-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex:0 0 auto;margin-top:8px;}
.dot-mint{background:var(--mint);}
.dot-accent{background:var(--accent);}

/* ========== 通用板块 ========== */
.sec{padding:88px 0;}
.sec-alt{background:#fff;}
@media (max-width:767.98px){.sec{padding:56px 0;}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);}
.sec-lead{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted);max-width:760px;}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);margin-bottom:12px;}
.kicker::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand);display:inline-block;}

/* ========== 奖励瀑布 ========== */
.waterfall{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start;}
.reward-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.reward-media{position:relative;aspect-ratio:16/9;background:var(--brand-light);}
.reward-media img{width:100%;height:100%;object-fit:cover;}
.reward-badge{
  position:absolute;left:16px;top:16px;
  padding:6px 14px;border-radius:4px 14px 14px 4px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;letter-spacing:.02em;
}
.reward-badge.is-mint{background:var(--mint);}
.reward-badge.is-brand{background:var(--brand);}
.reward-body{padding:24px;}
.reward-body h3{font-size:20px;}
.reward-cond{margin-top:12px;font-size:14px;line-height:1.75;color:var(--text);}
.reward-divider{height:1px;background:var(--line);margin:18px 0;}
.reward-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px;color:var(--muted);}
.reward-meta strong{color:var(--ink);font-weight:700;}
.reward-vals{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
.reward-vals span{padding:4px 12px;border-radius:var(--r-pill);background:#F4F1FD;color:var(--brand-deep);font-size:13px;}

/* ========== 奖励对照表 ========== */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);overflow:hidden;
}
.reward-table{width:100%;border-collapse:collapse;}
.reward-table thead th{
  background:var(--night);color:#fff;font-size:14px;font-weight:600;
  text-align:left;padding:0 24px;height:56px;letter-spacing:.04em;
}
.reward-table tbody td{
  padding:0 24px;height:56px;font-size:15px;color:var(--text);
  border-bottom:1px solid var(--line);vertical-align:middle;
}
.reward-table tbody tr:nth-child(even){background:#FBFAFE;}
.reward-table tbody tr:last-child td{border-bottom:0;}
.reward-table tbody tr:hover{background:#F6F2FE;}
.lvl{display:inline-block;padding:4px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:600;}
.lvl-1{background:var(--brand-light);color:var(--brand-deep);}
.lvl-2{background:#E3F8F3;color:#0E8E76;}
.lvl-3{background:var(--accent-light);color:var(--accent-deep);}
.lvl-4{background:#EFEAFA;color:#3E2492;}
.lvl-5{background:#2A1F53;color:#fff;}
.table-note{margin-top:16px;font-size:13px;color:var(--muted);}

/* ========== 核对要点 ========== */
.check-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:48px;align-items:center;}
.check-media{aspect-ratio:4/3;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--brand-light);}
.check-media img{width:100%;height:100%;object-fit:cover;}
.check-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);font-size:16px;line-height:1.75;}
.check-list li:last-child{border-bottom:0;}
.check-dot{
  flex:0 0 auto;width:22px;height:22px;margin-top:5px;border-radius:50%;
  background:#E3F8F3;color:#0E8E76;display:flex;align-items:center;justify-content:center;
}
.check-dot svg{width:12px;height:12px;}
.check-tip{
  margin-top:24px;padding:18px 20px;border-radius:var(--r-md);
  background:var(--accent-light);border-left:4px solid var(--accent);
  font-size:14px;line-height:1.75;color:#7A3A12;
}

/* ========== FAQ ========== */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  position:relative;width:100%;min-height:64px;padding:18px 56px 18px 24px;
  display:flex;align-items:center;
  font-size:15px;font-weight:600;color:var(--ink);background:#fff;
  border:0;box-shadow:none;border-radius:0;
}
.faq-acc .accordion-button:hover{color:var(--brand);}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-4px;}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:#FBFAFE;}
.faq-acc .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:4px;border-radius:0 4px 4px 0;background:var(--brand);
}
.faq-acc .accordion-button::after{
  content:"";position:absolute;right:26px;
  width:10px;height:10px;margin:0;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  background-image:none;transform:rotate(45deg);
  transition:transform .25s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq-acc .accordion-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text);}

/* ========== CTA 条幅 ========== */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);padding:56px 48px;text-align:center;color:#fff;
  background:linear-gradient(12deg,var(--brand) 0%,#6A46C8 52%,var(--accent) 100%);
}
.cta-band::after{
  content:"";position:absolute;left:-40px;bottom:-60px;width:280px;height:200px;
  background:repeating-linear-gradient(112deg,rgba(255,255,255,.18) 0 8px,transparent 8px 22px);
  transform:skewX(-12deg);pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.88);}
.cta-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center;}

/* ========== 页脚 ========== */
.site-footer{background:var(--night);color:rgba(255,255,255,.78);padding:72px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:16px;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.12em;color:rgba(255,255,255,.55);margin-bottom:18px;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.footer-col ul{margin-top:4px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:15px;color:rgba(255,255,255,.82);}
.footer-col ul a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ========== 响应式 ========== */
@media (max-width:1199.98px){
  .hero-grid{grid-template-columns:minmax(0,1.2fr) minmax(0,.9fr);gap:36px;}
  .check-grid{gap:36px;}
}
@media (max-width:991.98px){
  .hdr-search--desktop{display:none;}
  .hdr-search--mobile{display:flex;max-width:none;margin:0 0 16px;}
  .hdr-actions{display:none;}
  .hdr-nav{display:none;}
  .hdr-toggle{display:flex;}
  .hdr-drawer.is-open{display:block;}
  .logo-text{font-size:17px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-card{margin-top:0;}
  .check-grid{grid-template-columns:1fr;gap:28px;}
  .check-media{order:-1;}
  .waterfall{grid-template-columns:1fr;}
  .sec-head{margin-bottom:24px;}
}
@media (max-width:767.98px){
  .page-hero{padding:40px 0 56px;}
  .cta-band{padding:40px 24px;}
  .cta-actions .btn-brand{width:100%;}
  .cta-actions .link-arrow{justify-content:center;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .footer-bottom{flex-direction:column;margin-top:40px;}
  .reward-table thead{display:none;}
  .reward-table,.reward-table tbody,.reward-table tr,.reward-table td{display:block;width:100%;}
  .reward-table tbody tr{
    border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
    box-shadow:var(--sh-1);padding:6px 18px;margin-bottom:16px;
  }
  .reward-table tbody tr:nth-child(even){background:#fff;}
  .reward-table tbody td{
    height:auto;min-height:56px;padding:12px 0;border-bottom:1px dashed var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:16px;
  }
  .reward-table tbody td:last-child{border-bottom:0;}
  .reward-table tbody td::before{
    content:attr(data-label);font-size:13px;font-weight:600;color:var(--muted);flex:0 0 auto;
  }
  .reward-table tbody tr:hover{background:#fff;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .btn-brand{height:44px;padding:0 22px;}
  .hdr-top{gap:12px;}
  .reward-body{padding:20px;}
  .hero-stat strong{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;gap:34px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}