/* roulang page: index */
:root{
  --bs-primary:#FF6A2B;
  --bs-body-bg:#F5F6FA;
  --bs-body-color:#12141C;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --bs-border-radius:16px;
  --bs-border-radius-lg:24px;
  --bs-link-color:#FF6A2B;
  --bs-link-hover-color:#E2491A;
  --bs-secondary-bg:#FFF6F1;
  --bs-emphasis-color:#12141C;
  --bs-border-color:#E7E9F2;

  --brand-1:#FF6A2B;
  --brand-2:#FF3D77;
  --brand-3:#7B4DFF;
  --brand-4:#12C8B4;
  --ink:#12141C;
  --text:#12141C;
  --text-2:#5A607A;
  --text-3:#9AA0B4;
  --line:#E7E9F2;
  --bg:#F5F6FA;
  --bg-warm:#FFF6F1;
  --ok:#17B26A;
  --warn:#F79009;
  --err:#F04438;
  --grad:linear-gradient(120deg,#FF6A2B,#FF3D77 52%,#7B4DFF);
  --grad-soft:linear-gradient(120deg,rgba(255,106,43,.12),rgba(255,61,119,.12) 52%,rgba(123,77,255,.12));
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(18,20,28,.06);
  --shadow-md:0 12px 32px rgba(18,20,28,.08);
  --shadow-lg:0 28px 64px rgba(18,20,28,.12);
  --shadow-btn:0 14px 32px rgba(255,61,119,.28);
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
  --nav-h:68px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;object-fit:cover;}
a{color:var(--brand-1);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;}
a:hover{color:var(--bs-link-hover-color);text-decoration:underline;text-underline-offset:3px;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,106,43,.35);border-radius:var(--r-sm);}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:800;letter-spacing:.2px;}
h1{font-size:clamp(28px,3.4vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
h3{font-size:22px;line-height:1.4;}
h4{font-size:18px;line-height:1.5;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1320px;}}

.section{padding:96px 0;}
.section-warm{background:var(--bg-warm);}
.section-dark{background:var(--ink);color:#fff;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:1.2px;
  color:var(--brand-2);
  background:rgba(255,61,119,.08);
  border:1px solid rgba(255,61,119,.2);
  border-radius:var(--r-pill);
  padding:6px 16px;margin-bottom:18px;text-transform:none;
}
.section-head p{color:var(--text-2);font-size:16px;line-height:1.85;margin-top:16px;}
.section-dark .section-head p{color:rgba(255,255,255,.72);}
.section-dark h2{color:#fff;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:var(--nav-h);
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease-out,border-color .25s ease-out,background .25s ease-out;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:var(--nav-h);}
.logo{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;text-decoration:none;}
.logo:hover{text-decoration:none;}
.logo-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;box-shadow:0 8px 20px rgba(255,61,119,.28);flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px;stroke:#fff;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{
  font-size:20px;font-weight:800;letter-spacing:.2px;
  background:linear-gradient(120deg,#FF6A2B,#FF3D77 60%,#12141C);
  -webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap;
}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1 1 auto;}
.nav-desktop a{
  position:relative;display:inline-block;padding:9px 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--text-2);text-decoration:none;
}
.nav-desktop a::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;
  background:var(--grad);border-radius:2px;transform:translateX(-50%);
  transition:width .22s ease-out;
}
.nav-desktop a:hover{color:var(--brand-1);background:rgba(255,106,43,.06);text-decoration:none;}
.nav-desktop a:hover::after{width:26px;}
.nav-desktop a.active{color:var(--brand-1);background:rgba(255,106,43,.08);}
.nav-desktop a.active::after{width:26px;}
.nav-right{display:flex;align-items:center;gap:18px;margin-left:auto;flex:0 0 auto;}
.nav-sub{font-size:14px;font-weight:600;color:var(--text-2);}
.nav-sub:hover{color:var(--brand-1);text-decoration:none;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--ink);stroke-width:2;fill:none;stroke-linecap:round;}

/* ============ 按钮 ============ */
.btn-grad,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;transition:all .22s ease-out;
}
.btn-grad{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(255,61,119,.24);}
.btn-grad:hover{color:#fff;filter:brightness(1.04);transform:translateY(-2px);box-shadow:var(--shadow-btn);text-decoration:none;}
.btn-grad:active{transform:translateY(0);}
.btn-line{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-line:hover{color:var(--brand-1);border-color:rgba(255,106,43,.5);transform:translateY(-2px);text-decoration:none;}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.32);}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;transform:translateY(-2px);text-decoration:none;}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;padding:calc(var(--nav-h) + 56px) 0 96px;overflow:hidden;
  background:var(--bg-warm);
}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:720px;height:720px;
  background:radial-gradient(circle at center,rgba(255,106,43,.14),rgba(123,77,255,.08) 45%,rgba(255,106,43,0) 70%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(18,20,28,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(18,20,28,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.65),rgba(0,0,0,0) 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.65),rgba(0,0,0,0) 78%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;min-height:560px;}
.hero-title{margin-bottom:20px;}
.hero-title em{
  font-style:normal;
  background:linear-gradient(120deg,#FF6A2B,#FF3D77 60%,#7B4DFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:560px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;}
.stat-badge{
  display:flex;align-items:baseline;gap:6px;flex-wrap:wrap;
  padding:12px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.9);border:1px solid rgba(255,106,43,.2);
  box-shadow:var(--shadow-sm);
}
.stat-badge .num{
  font-family:var(--font-num);font-size:26px;font-weight:800;line-height:1;
  background:linear-gradient(120deg,#FF6A2B,#FF3D77 60%,#7B4DFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat-badge .unit{font-size:13px;font-weight:700;color:var(--brand-2);}
.stat-badge .label{font-size:13px;color:var(--text-3);width:100%;}
.hero-visual{position:relative;}
.hero-photo{
  border-radius:var(--r-xl);overflow:hidden;position:relative;
  border:1px solid rgba(255,106,43,.28);
  box-shadow:var(--shadow-lg);
  background:var(--grad-soft);
}
.hero-photo img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-mini{
  position:absolute;left:-24px;bottom:-32px;width:250px;padding:18px;border-radius:var(--r-lg);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-md);
}
.hero-mini img{width:100%;aspect-ratio:16/9;border-radius:var(--r-sm);margin-bottom:12px;}
.hero-mini h4{font-size:16px;margin-bottom:8px;}
.hero-mini .mini-num{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--brand-2);
  background:rgba(255,61,119,.08);border:1px solid rgba(255,61,119,.2);border-radius:var(--r-pill);padding:4px 12px;
}
.hero-mini .mini-num b{font-family:var(--font-num);font-size:16px;}

/* ============ 流程时间线 ============ */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:24px;padding-top:8px;}
.timeline::before{
  content:"";position:absolute;left:6%;right:6%;top:34px;height:2px;background:var(--grad);opacity:.55;border-radius:2px;
}
.tl-item{position:relative;text-align:left;}
.tl-dot{
  position:relative;z-index:2;width:28px;height:28px;border-radius:50%;
  background:#fff;border:4px solid #fff;box-shadow:0 0 0 2px rgba(255,106,43,.35),0 8px 18px rgba(255,61,119,.22);
  display:grid;place-items:center;margin:4px 0 24px;
}
.tl-dot i{width:8px;height:8px;border-radius:50%;background:var(--grad);display:block;}
.tl-num{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:800;color:var(--brand-2);
  background:rgba(255,106,43,.1);border:1px solid rgba(255,106,43,.2);border-radius:var(--r-pill);padding:3px 12px;margin-bottom:10px;
}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-sm);transition:all .25s ease-out;height:100%;}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,106,43,.3);}
.tl-card h3{font-size:18px;margin-bottom:8px;}
.tl-card p{font-size:15px;line-height:1.75;color:var(--text-2);margin:0;}

/* ============ 能力卡 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;
  box-shadow:var(--shadow-sm);transition:all .25s ease-out;height:100%;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,106,43,.3);}
.feature-icon{
  width:48px;height:48px;border-radius:16px;background:var(--grad);display:grid;place-items:center;margin-bottom:18px;
  box-shadow:0 10px 22px rgba(255,61,119,.22);
}
.feature-icon svg{width:24px;height:24px;stroke:#fff;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.feature-card h3{font-size:18px;margin-bottom:10px;}
.feature-card p{font-size:15px;line-height:1.75;color:var(--text-2);margin:0;}

/* ============ 图文双栏 ============ */
.split{display:grid;grid-template-columns:5fr 6fr;gap:56px;align-items:center;}
.split-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line);background:var(--grad-soft);}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.split-body h2{margin-bottom:18px;}
.split-body p{color:var(--text-2);font-size:16px;line-height:1.85;}
.split-list{margin:26px 0 30px;display:grid;gap:14px;}
.split-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--text-2);}
.split-list svg{width:20px;height:20px;flex:0 0 auto;margin-top:5px;stroke:var(--brand-4);stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.split-metrics{display:flex;gap:12px;flex-wrap:wrap;}
.metric{
  flex:1 1 140px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--shadow-sm);
}
.metric .num{display:block;font-family:var(--font-num);font-size:26px;font-weight:800;line-height:1.1;
  background:linear-gradient(120deg,#FF6A2B,#FF3D77 60%,#7B4DFF);-webkit-background-clip:text;background-clip:text;color:transparent;}
.metric .txt{font-size:13px;color:var(--text-3);}

/* ============ 方案对比 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.plan-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:32px 28px;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);transition:all .25s ease-out;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.plan-card.featured{border:2px solid var(--brand-1);transform:scale(1.02);box-shadow:var(--shadow-md);}
.plan-card.featured:hover{transform:scale(1.02) translateY(-4px);}
.plan-tag{
  position:absolute;top:-14px;left:28px;background:var(--grad);color:#fff;font-size:12px;font-weight:700;
  padding:6px 16px;border-radius:var(--r-pill);box-shadow:0 8px 18px rgba(255,61,119,.28);letter-spacing:.5px;
}
.plan-name{font-size:20px;font-weight:800;margin-bottom:6px;}
.plan-desc{font-size:14px;color:var(--text-3);margin-bottom:20px;}
.plan-price{display:flex;align-items:baseline;gap:8px;padding-bottom:22px;border-bottom:1px dashed var(--line);margin-bottom:22px;}
.plan-price b{font-family:var(--font-num);font-size:38px;font-weight:800;line-height:1;
  background:linear-gradient(120deg,#FF6A2B,#FF3D77 60%,#7B4DFF);-webkit-background-clip:text;background-clip:text;color:transparent;}
.plan-price span{font-size:14px;color:var(--text-3);}
.plan-list{display:grid;gap:12px;margin-bottom:28px;flex:1 1 auto;}
.plan-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.7;color:var(--text-2);}
.plan-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;stroke:var(--brand-1);stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 最新信息 ============ */
.news-top{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px;}
.news-top h2{margin-bottom:12px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  font-size:13px;font-weight:600;color:var(--text-2);background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:7px 16px;transition:all .2s ease-out;
}
.chip.is-on,.chip:hover{color:var(--brand-1);border-color:rgba(255,106,43,.4);background:rgba(255,106,43,.06);text-decoration:none;}
.more-link{font-size:15px;font-weight:600;white-space:nowrap;}
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--shadow-sm);transition:all .25s ease-out;
}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,106,43,.3);}
.news-cover{position:relative;display:block;overflow:hidden;background:var(--grad-soft);}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease-out;}
.news-item:hover .news-cover img{transform:scale(1.03);}
.news-cat{
  position:absolute;left:14px;top:14px;background:rgba(255,106,43,.92);color:#fff;
  font-size:12px;font-weight:700;padding:5px 14px;border-radius:var(--r-pill);
}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body h3{font-size:18px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{color:var(--ink);}
.news-body h3 a:hover{color:var(--brand-1);text-decoration:none;}
.news-body p{font-size:15px;line-height:1.75;color:var(--text-2);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;
  font-size:13px;color:var(--text-3);padding-top:16px;border-top:1px solid var(--line);}
.news-meta a{font-weight:600;}
.news-empty{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-lg);background:#fff;
}
.news-empty .empty-art{
  width:120px;height:120px;margin:0 auto 20px;border-radius:var(--r-lg);background:var(--grad-soft);
  display:grid;place-items:center;border:1px solid rgba(255,106,43,.2);
}
.news-empty .empty-art svg{width:44px;height:44px;stroke:var(--brand-1);stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.news-empty p{font-size:15px;color:var(--text-2);margin-bottom:20px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:#FFF6F1;border:1px solid transparent;border-radius:18px!important;margin-bottom:14px;overflow:hidden;
  transition:border-color .2s ease-out,background .2s ease-out;
}
.accordion-item:has(.accordion-button:not(.collapsed)){background:#fff;border-color:rgba(255,106,43,.3);border-left:3px solid var(--brand-1);}
.accordion-button{
  background:transparent;border:0;box-shadow:none;font-size:17px;font-weight:700;color:var(--ink);
  padding:20px 56px 20px 24px;line-height:1.6;border-radius:18px!important;
}
.accordion-button:not(.collapsed){color:var(--brand-1);background:transparent;box-shadow:none;}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(255,106,43,.2);}
.accordion-button::after{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23FF6A2B' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  width:20px;height:20px;background-size:20px;transition:transform .25s ease-out;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{padding:0 24px 22px;font-size:16px;line-height:1.85;color:var(--text-2);}

/* ============ CTA 表单 ============ */
.cta-panel{
  position:relative;background:var(--ink);border-radius:var(--r-xl);padding:56px;overflow:hidden;color:#fff;
  display:grid;grid-template-columns:6fr 5fr;gap:56px;align-items:center;
}
.cta-panel::before{
  content:"";position:absolute;top:-180px;right:-120px;width:560px;height:560px;pointer-events:none;
  background:radial-gradient(circle at center,rgba(255,106,43,.32),rgba(123,77,255,.16) 45%,rgba(18,20,28,0) 72%);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{color:#fff;margin-bottom:16px;}
.cta-copy p{color:rgba(255,255,255,.72);font-size:16px;margin-bottom:26px;}
.cta-points{display:grid;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.78);}
.cta-points svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;stroke:var(--brand-4);stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.form-card{
  position:relative;z-index:2;background:#fff;border-radius:var(--r-xl);padding:32px;box-shadow:var(--shadow-lg);color:var(--ink);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-hint{font-size:14px;color:var(--text-3);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.field .form-control,.field .form-select{
  width:100%;height:48px;border-radius:14px;border:1px solid var(--line);background:#fff;
  font-size:15px;color:var(--ink);padding:0 16px;box-shadow:none;transition:all .2s ease-out;
}
.field textarea.form-control{height:96px;padding:12px 16px;line-height:1.7;resize:vertical;}
.field .form-control:focus,.field .form-select:focus{border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(255,106,43,.2);}
.field .form-control::placeholder{color:var(--text-3);}
.form-tip{font-size:13px;color:var(--text-3);margin-top:14px;}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;top:-160px;right:-100px;width:520px;height:520px;pointer-events:none;
  background:radial-gradient(circle at center,rgba(255,106,43,.22),rgba(18,20,28,0) 68%);
}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo-text{background:linear-gradient(120deg,#FF6A2B,#FF8A5B 60%,#fff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:18px 0 0;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;color:rgba(255,255,255,.92);margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62);display:inline-block;}
.footer-col a:hover{color:var(--brand-1);transform:translateX(2px);text-decoration:none;}
.footer-bottom{
  position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.66);}
.footer-bottom a:hover{color:#fff;text-decoration:none;}

/* ============ 移动底部 Tab ============ */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;display:none;
  background:#fff;border-top:1px solid var(--line);
  height:calc(60px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(18,20,28,.06);
}
.mobile-tab ul{display:grid;grid-template-columns:repeat(5,1fr);height:60px;}
.mobile-tab a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--text-3);position:relative;text-decoration:none;
}
.mobile-tab a svg{width:22px;height:22px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease-out;}
.mobile-tab a.active{color:var(--brand-1);}
.mobile-tab a.active svg{transform:translateY(-2px);}
.mobile-tab a.active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:3px;border-radius:3px;background:var(--grad);}
.mobile-tab a.tab-cta{color:#fff;}
.mobile-tab a.tab-cta .tab-ico{width:36px;height:36px;border-radius:12px;background:var(--grad);display:grid;place-items:center;box-shadow:0 6px 16px rgba(255,61,119,.3);}
.mobile-tab a.tab-cta .tab-ico svg{width:18px;height:18px;stroke:#fff;}
.mobile-tab a.tab-cta span{color:var(--brand-1);font-weight:700;}

/* ============ 入场动效 ============ */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .45s ease-out,transform .45s ease-out;}
.fade-up.in{opacity:1;transform:translateY(0);}
.fade-up.d1{transition-delay:.06s;}
.fade-up.d2{transition-delay:.12s;}
.fade-up.d3{transition-delay:.18s;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-mini{position:static;width:100%;margin-top:20px;left:auto;bottom:auto;}
  .split{grid-template-columns:1fr;gap:36px;}
  .plan-card.featured{transform:none;}
  .plan-card.featured:hover{transform:translateY(-4px);}
}
@media (max-width:991.98px){
  body{padding-bottom:76px;}
  .nav-desktop,.nav-right{display:none;}
  .nav-toggle{display:flex;}
  .mobile-tab{display:block;}
  .section{padding:72px 0;}
  .hero{padding-top:calc(var(--nav-h) + 36px);padding-bottom:72px;}
  .hero-grid{min-height:auto;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .news-list{grid-template-columns:repeat(2,1fr);}
  .plan-grid{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;gap:0;padding-left:6px;}
  .timeline::before{left:19px;right:auto;top:12px;bottom:24px;width:2px;height:auto;background:linear-gradient(180deg,#FF6A2B,#FF3D77 52%,#7B4DFF);}
  .tl-item{display:grid;grid-template-columns:24px 1fr;gap:20px;padding-bottom:22px;}
  .tl-dot{margin:4px 0 0;}
  .tl-card{padding:20px;}
  .cta-panel{grid-template-columns:1fr;padding:36px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  body{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .feature-grid,.news-list{grid-template-columns:1fr;}
  .hero-actions{gap:10px;}
  .hero-actions .btn-grad,.hero-actions .btn-ghost{width:100%;}
  .stat-row{gap:10px;}
  .stat-badge{flex:1 1 calc(50% - 5px);padding:12px 14px;}
  .cta-panel{padding:26px;border-radius:var(--r-lg);}
  .form-card{padding:24px;border-radius:var(--r-lg);}
  .narrative p,.accordion-body{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .mobile-tab a span{font-size:10px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  .fade-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --brand:#FF6A2B;
  --brand-2:#FF3D77;
  --brand-3:#7B4DFF;
  --teal:#12C8B4;
  --ink:#12141C;
  --ink-2:#5A607A;
  --ink-3:#9AA0B4;
  --line:#E7E9F2;
  --bg:#F5F6FA;
  --bg-warm:#FFF6F1;
  --white:#ffffff;
  --ok:#17B26A;
  --warn:#F79009;
  --grad:linear-gradient(120deg,#FF6A2B,#FF3D77 52%,#7B4DFF);
  --grad-soft:linear-gradient(120deg,rgba(255,106,43,.12),rgba(255,61,119,.10) 52%,rgba(123,77,255,.12));
  --r-sm:12px; --r-md:16px; --r-lg:24px; --r-xl:28px; --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(18,20,28,.06);
  --shadow-md:0 12px 32px rgba(18,20,28,.08);
  --shadow-lg:0 28px 64px rgba(18,20,28,.12);
  --shadow-btn:0 14px 32px rgba(255,61,119,.28);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;

  --bs-primary:#FF6A2B;
  --bs-primary-rgb:255,106,43;
  --bs-body-bg:#F5F6FA;
  --bs-body-color:#12141C;
  --bs-font-sans-serif:var(--font-sans);
  --bs-body-font-size:17px;
  --bs-border-radius:12px;
  --bs-border-radius-lg:16px;
  --bs-border-radius-xl:24px;
  --bs-link-color:#FF6A2B;
  --bs-link-hover-color:#E44E15;
  --bs-secondary-bg:#ffffff;
  --bs-emphasis-color:#12141C;
  --bs-border-color:#E7E9F2;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out}
a:hover{color:#E44E15;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:800;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(255,106,43,.35);outline-offset:2px;border-radius:8px}
::selection{background:rgba(255,106,43,.2)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container{max-width:1320px}}
@media (max-width:575.98px){.container{padding:0 16px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease-out,border-color .25s ease-out;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-sm)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.logo:hover{text-decoration:none}
.logo-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(255,61,119,.28);
  flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.logo-text{
  font-size:20px;font-weight:800;line-height:1;
  background:linear-gradient(120deg,#FF6A2B,#FF3D77 52%,#7B4DFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  white-space:nowrap;
}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-desktop a{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 16px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;color:var(--ink-2);
  transition:color .2s ease-out,background-color .2s ease-out;
}
.nav-desktop a::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%) scaleX(0);
  width:20px;height:2px;border-radius:2px;background:var(--grad);
  transition:transform .2s ease-out;
}
.nav-desktop a:hover{color:var(--brand);background:rgba(255,106,43,.06);text-decoration:none}
.nav-desktop a:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-desktop a.active{color:var(--brand);background:rgba(255,106,43,.08)}
.nav-desktop a.active::after{transform:translateX(-50%) scaleX(1)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-sub{font-size:15px;font-weight:600;color:var(--ink-2)}
.nav-sub:hover{color:var(--brand)}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:14px;
  background:#fff;border:1px solid var(--line);align-items:center;justify-content:center;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-toggle svg{width:22px;height:22px;fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round}
.nav-toggle:hover{border-color:rgba(255,106,43,.4);box-shadow:var(--shadow-sm)}

.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-size:16px;font-weight:600;
  border:0;box-shadow:0 10px 24px rgba(255,61,119,.24);
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
  white-space:nowrap;
}
.btn-grad:hover{color:#fff;text-decoration:none;filter:brightness(1.04);transform:translateY(-2px);box-shadow:var(--shadow-btn)}
.btn-grad:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,61,119,.24)}
.btn-grad.btn-sm{height:44px;padding:0 22px;font-size:15px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  background:transparent;border:1px solid rgba(255,255,255,.32);color:#fff;
  font-size:16px;font-weight:600;
  transition:background-color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;text-decoration:none;border-color:rgba(255,255,255,.5);transform:translateY(-2px)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);
  font-size:16px;font-weight:600;
  transition:border-color .2s ease-out,color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-line:hover{border-color:var(--brand);color:var(--brand);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-sm)}

/* ---------- 移动抽屉 ---------- */
.offcanvas.drawer{width:320px;max-width:86vw;border:0}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 12px}
.drawer-list{padding:8px 12px 24px;display:flex;flex-direction:column;gap:6px}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:var(--r-md);
  font-size:16px;font-weight:600;color:var(--ink-2);
  transition:background-color .2s ease-out,color .2s ease-out;
}
.drawer-list a:hover,.drawer-list a.active{background:rgba(255,106,43,.08);color:var(--brand);text-decoration:none}
.drawer-list a span.dot{width:6px;height:6px;border-radius:50%;background:var(--line)}
.drawer-list a.active span.dot{background:var(--grad)}
.drawer-cta{padding:0 20px 28px}
.drawer-cta .btn-grad{width:100%}

/* ---------- 移动底部 Tab ---------- */
.mobile-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  height:calc(60px + env(safe-area-inset-bottom));
}
.mobile-tabbar .tab-inner{display:flex;height:60px}
.tab-item{
  position:relative;flex:1;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:3px;
  font-size:11px;font-weight:600;color:var(--ink-3);
  transition:color .2s ease-out;
}
.tab-item svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease-out}
.tab-item:hover{color:var(--brand);text-decoration:none}
.tab-item.active{color:var(--brand)}
.tab-item.active svg{transform:translateY(-2px)}
.tab-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--grad);
}
.tab-cta svg{stroke:#fff}
.tab-cta .tab-ic{
  width:30px;height:30px;border-radius:50%;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(255,61,119,.3);
}
.tab-cta .tab-ic svg{width:17px;height:17px}
.tab-cta:hover{color:var(--brand-2)}
.tab-cta.active::before{display:none}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;height:40px;font-size:13px;color:var(--ink-3);flex-wrap:wrap}
.crumb a{color:var(--ink-3);font-weight:600}
.crumb a:hover{color:var(--brand);text-decoration:none}
.crumb .sep{color:#C9CDDC}
.crumb .cur{color:var(--ink);font-weight:700}

/* ---------- 分类页头 ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:360px;display:flex;align-items:center;
  background-image:linear-gradient(120deg,rgba(18,20,28,.86),rgba(18,20,28,.68)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 320px at 82% 18%,rgba(255,106,43,.32),transparent 70%),
             radial-gradient(420px 300px at 12% 92%,rgba(123,77,255,.26),transparent 72%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;padding-top:26px;padding-bottom:56px}
.cat-hero .crumb,.cat-hero .crumb a{color:rgba(255,255,255,.7)}
.cat-hero .crumb .cur{color:#fff}
.cat-hero .crumb .sep{color:rgba(255,255,255,.4)}
.cat-hero .crumb a:hover{color:#fff}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.04em;
  backdrop-filter:blur(4px);
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--grad);display:inline-block}
.cat-hero h1{
  margin-top:20px;color:#fff;font-size:44px;line-height:1.25;font-weight:800;letter-spacing:-.02em;
}
.cat-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#FFB08A,#FF8FB4 52%,#B79BFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero .sub{margin-top:16px;max-width:640px;color:rgba(255,255,255,.82);font-size:17px;line-height:1.8}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section.warm{background:var(--bg-warm)}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--brand);
  text-transform:uppercase;margin-bottom:14px;
}
.sec-kicker::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad)}
h2.sec-title{font-size:32px;line-height:1.3}
.sec-desc{margin-top:14px;color:var(--ink-2);font-size:17px;line-height:1.85}

/* ---------- 图文交替 ---------- */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.feature-row + .feature-row{margin-top:88px}
.feature-row.reverse .feature-media{order:2}
.feature-media{position:relative}
.feature-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);
  box-shadow:var(--shadow-md);
}
.feature-media .float-card{
  position:absolute;right:-14px;bottom:-20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-lg);padding:16px 20px;min-width:170px;
}
.float-card .num{
  font-family:var(--font-num);font-size:26px;font-weight:800;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.float-card .cap{font-size:13px;color:var(--ink-3);font-weight:600;margin-top:2px}
.feature-body .idx{
  font-family:var(--font-num);font-size:14px;font-weight:800;letter-spacing:.14em;
  color:var(--brand);
}
.feature-body h3{font-size:22px;line-height:1.4;margin-top:10px}
.feature-body p{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.85;max-width:36em}
.badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.badge-data{
  display:flex;align-items:center;gap:12px;
  padding:12px 18px;border-radius:var(--r-md);
  background:var(--grad-soft);border:1px solid rgba(255,106,43,.2);
}
.badge-data .n{
  font-family:var(--font-num);font-size:24px;font-weight:800;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.badge-data .l{font-size:12.5px;color:var(--ink-2);font-weight:600}
.feature-list{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.feature-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.feature-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;fill:none;stroke:var(--brand);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 能力矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.matrix-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;height:100%;
  transition:transform .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,106,43,.3)}
.icon-block{
  width:48px;height:48px;border-radius:16px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 10px 22px rgba(255,61,119,.24);
}
.icon-block svg{width:24px;height:24px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.matrix-card h3{font-size:18px;line-height:1.5;margin-top:20px}
.matrix-card p{margin-top:10px;color:var(--ink-2);font-size:15px;line-height:1.75}
.matrix-card .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(123,77,255,.08);border:1px solid rgba(123,77,255,.18);
  color:var(--brand-3);font-size:12px;font-weight:600;
}
.tag.tag-orange{background:rgba(255,106,43,.08);border-color:rgba(255,106,43,.2);color:var(--brand)}
.tag.tag-teal{background:rgba(18,200,180,.1);border-color:rgba(18,200,180,.24);color:#0E9C8C}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:#12141C;color:#fff;
  padding:64px 0;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 320px at 88% 12%,rgba(255,106,43,.34),transparent 68%),
             radial-gradient(420px 300px at 6% 96%,rgba(123,77,255,.3),transparent 70%);
  pointer-events:none;
}
.cta-band .container{position:relative;z-index:2}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:30px;line-height:1.35;max-width:22em}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.74);font-size:16px;max-width:34em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;overflow:hidden;
  background:#12141C;color:rgba(255,255,255,.72);
  padding:72px 0 0;font-size:14px;
}
.site-footer::after{
  content:"";position:absolute;top:-120px;right:-80px;width:520px;height:420px;
  background:radial-gradient(closest-side,rgba(255,106,43,.28),transparent 72%);
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin-top:16px;line-height:1.8;color:rgba(255,255,255,.6);max-width:30em;font-size:14px}
.site-footer .logo-text{
  background:linear-gradient(120deg,#FFB08A,#FF8FB4 52%,#B79BFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px;transition:color .2s ease-out,transform .2s ease-out;display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(-2px);text-decoration:none}
.footer-bottom{
  margin-top:56px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:rgba(255,255,255,.56);font-size:13px;
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:var(--brand);text-decoration:none}

/* ---------- 动效 ---------- */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .45s ease-out,transform .45s ease-out}
.fade-up.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .fade-up{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .cat-hero h1{font-size:38px}
  .matrix{gap:20px}
}
@media (max-width:991.98px){
  body{padding-bottom:76px}
  .nav-desktop,.nav-right{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:72px 0}
  .section.tight{padding:56px 0}
  .mobile-tabbar{display:block}
  .feature-row{grid-template-columns:1fr;gap:32px}
  .feature-row.reverse .feature-media{order:0}
  .feature-row + .feature-row{margin-top:64px}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .cat-hero{min-height:320px}
  .cat-hero h1{font-size:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .cta-inner h2{font-size:26px}
}
@media (max-width:767.98px){
  .cat-hero h1{font-size:30px}
  .cat-hero .sub{font-size:16px}
  .sec-head{margin-bottom:32px}
  h2.sec-title{font-size:26px}
  .feature-media .float-card{position:static;margin-top:16px;box-shadow:var(--shadow-sm);right:auto;bottom:auto}
  .cta-band{padding:52px 0}
  .cta-inner h2{font-size:24px}
  .site-footer{padding-top:56px}
}
@media (max-width:575.98px){
  body{font-size:16px}
  .cat-hero h1{font-size:27px}
  .matrix{grid-template-columns:1fr}
  .badges{gap:10px}
  .hero-actions .btn-grad,.hero-actions .btn-ghost{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --brand:#FF6A2B;
  --brand-2:#FF3D77;
  --accent:#7B4DFF;
  --cyan:#12C8B4;
  --ink:#12141C;
  --text:#12141C;
  --text-2:#5A607A;
  --text-3:#9AA0B4;
  --bg:#F5F6FA;
  --bg-warm:#FFF6F1;
  --line:#E7E9F2;
  --success:#17B26A;
  --warn:#F79009;
  --error:#F04438;
  --grad:linear-gradient(120deg,#FF6A2B,#FF3D77 52%,#7B4DFF);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(18,20,28,.06);
  --shadow-md:0 12px 32px rgba(18,20,28,.08);
  --shadow-lg:0 28px 64px rgba(18,20,28,.12);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"DIN Alternate","Barlow","Helvetica Neue",system-ui,sans-serif;
  --bs-primary:#FF6A2B;
  --bs-primary-rgb:255,106,43;
  --bs-body-bg:#F5F6FA;
  --bs-body-color:#12141C;
  --bs-font-sans-serif:var(--font-sans);
  --bs-border-radius:12px;
  --bs-border-radius-lg:24px;
  --bs-link-color:#FF6A2B;
  --bs-link-hover-color:#E24E12;
  --bs-secondary-bg:#FFF6F1;
  --bs-emphasis-color:#12141C;
  --bs-border-color:#E7E9F2;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:#D94410;text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(255,106,43,.35);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:800;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container{max-width:1320px}}

/* ============ 通用按钮 ============ */
.btn-grad,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-grad{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,61,119,.22)}
.btn-grad:hover{color:#fff;filter:brightness(1.04);transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,61,119,.28);text-decoration:none}
.btn-grad:active{transform:translateY(0)}
.btn-line{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-line:hover{border-color:rgba(255,106,43,.5);color:var(--brand);transform:translateY(-2px);text-decoration:none}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;text-decoration:none}
.btn-sm{height:40px;padding:0 18px;font-size:15px}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:68px;background:rgba(255,255,255,.9);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-sm);background:rgba(255,255,255,.96)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo:hover{text-decoration:none}
.logo-mark{
  width:36px;height:36px;border-radius:11px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(255,61,119,.26);
}
.logo-mark svg{width:21px;height:21px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.logo-text{
  font-size:20px;font-weight:800;letter-spacing:.4px;
  background:linear-gradient(120deg,#FF6A2B,#7B4DFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav-desktop{display:none;align-items:center;gap:6px;margin-left:8px}
.nav-desktop a{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:var(--r-pill);font-size:15.5px;font-weight:600;color:var(--text-2);
}
.nav-desktop a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--grad);transform:translateX(-50%);transition:width .22s ease-out;
}
.nav-desktop a:hover{color:var(--brand);text-decoration:none}
.nav-desktop a:hover::after{width:22px}
.nav-desktop a.active{color:var(--brand);background:rgba(255,106,43,.08)}
.nav-desktop a.active::after{display:none}
.nav-right{display:none;align-items:center;gap:16px;margin-left:auto}
.nav-sub{font-size:15px;font-weight:600;color:var(--text-2)}
.nav-sub:hover{color:var(--brand);text-decoration:none}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;display:inline-flex;align-items:center;justify-content:center;
}
.nav-toggle svg{width:22px;height:22px;fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round}
@media (min-width:992px){
  .nav-desktop{display:flex}
  .nav-right{display:flex}
  .nav-toggle{display:none}
}

/* 移动端抽屉 */
.drawer{background:#fff;border:0}
.drawer .offcanvas-header{padding:20px 22px;border-bottom:1px solid var(--line)}
.drawer .offcanvas-body{padding:14px 22px 32px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;border-bottom:1px solid var(--line);
  font-size:17px;font-weight:600;color:var(--ink);
}
.drawer-link:hover{color:var(--brand);text-decoration:none}
.drawer-link span{color:var(--text-3);font-size:14px;font-weight:500}
.drawer-cta{margin-top:22px;width:100%}

/* ============ 移动底部 Tab ============ */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:flex;align-items:stretch;height:60px;
  padding-bottom:env(safe-area-inset-bottom);
  background:#fff;border-top:1px solid var(--line);
}
.mobile-tabbar a{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;font-weight:600;color:var(--text-3);
}
.mobile-tabbar a:hover{text-decoration:none;color:var(--brand)}
.mobile-tabbar svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.mobile-tabbar a.active{color:var(--brand)}
.mobile-tabbar a.active svg{transform:translateY(-2px)}
.mobile-tabbar a.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:28px;height:3px;border-radius:0 0 3px 3px;background:var(--grad);
}
.mobile-tabbar a.tab-login{color:var(--brand)}
.mobile-tabbar a.tab-login svg{stroke:#fff}
.mobile-tabbar a.tab-login .tab-ico{background:var(--grad);border-radius:50%;width:26px;height:26px;display:flex;align-items:center;justify-content:center}
.mobile-tabbar a.tab-login .tab-ico svg{width:16px;height:16px}
@media (min-width:992px){.mobile-tabbar{display:none}}
@media (max-width:991px){body{padding-bottom:76px}}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;overflow:hidden;margin-top:0;
  background:var(--ink);color:#fff;padding:72px 0 0;
}
.site-footer::after{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;pointer-events:none;
  background:radial-gradient(circle,rgba(255,106,43,.24),rgba(255,61,119,.08) 45%,transparent 70%);
}
.footer-grid{position:relative;z-index:1;display:grid;gap:36px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px}}
.footer-brand p{margin:16px 0 0;max-width:320px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62)}
.footer-brand .logo-text{background:none;-webkit-text-fill-color:#fff;color:#fff}
.footer-brand .logo-mark{box-shadow:none}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.3px}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.6);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);text-decoration:none}
.footer-bottom{
  position:relative;z-index:1;margin-top:52px;padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:var(--brand);text-decoration:none}

/* ============ 面包屑 ============ */
.crumb-bar{padding:92px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;min-height:40px;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-2);font-weight:500}
.crumb a:hover{color:var(--brand);text-decoration:none}
.crumb .sep{color:#C9CDDB}
.crumb .cur{color:var(--ink);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media (max-width:575px){.crumb .cur{max-width:200px}}

/* ============ 文章头部 ============ */
.article-top{
  position:relative;overflow:hidden;padding:22px 0 40px;
  background:
    linear-gradient(180deg,rgba(255,246,241,.96),rgba(245,246,250,.98)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.article-top::before{
  content:"";position:absolute;top:-180px;right:-140px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(255,106,43,.16),rgba(123,77,255,.08) 48%,transparent 72%);
  pointer-events:none;
}
.article-head{position:relative;max-width:860px}
.tag-chip{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--brand);
  background:rgba(255,106,43,.1);border:1px solid rgba(255,106,43,.22);
}
.article-head h1{
  margin:18px 0 0;font-size:34px;line-height:1.3;letter-spacing:.2px;font-weight:800;
}
@media (min-width:768px){.article-head h1{font-size:42px}}
@media (min-width:992px){.article-head h1{font-size:46px}}
.meta-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:20px;font-size:13px;color:var(--text-3);
}
.meta-bar .dot{width:4px;height:4px;border-radius:50%;background:#C9CDDB}
.meta-bar .author{color:var(--text-2);font-weight:600}
.article-lead{
  position:relative;max-width:860px;margin-top:26px;padding:18px 22px 18px 24px;
  background:#fff;border-radius:0 var(--r-md) var(--r-md) 0;
  border-left:3px solid var(--brand);
  font-size:17px;line-height:1.85;color:var(--text-2);
  box-shadow:var(--shadow-sm);
}

/* ============ 布局 ============ */
.article-layout{display:grid;grid-template-columns:1fr;gap:40px;padding:56px 0 0}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:40px;padding-top:64px}
}
.article-main{min-width:0}

/* ============ 正文排版 ============ */
.article-body{
  max-width:800px;margin:0 auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:32px 24px;box-shadow:var(--shadow-sm);
  font-size:17px;line-height:1.9;color:var(--text);
  overflow-wrap:break-word;word-break:break-word;
}
@media (min-width:768px){.article-body{padding:44px 48px}}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;margin:44px 0 18px;padding-left:18px;
  font-size:25px;line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:9px;width:4px;height:18px;border-radius:2px;background:var(--grad);
}
.article-body h3{margin:32px 0 14px;font-size:20px;line-height:1.5;color:var(--ink)}
.article-body h4{margin:26px 0 12px;font-size:18px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;list-style:revert}
.article-body li{margin:8px 0}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-radius:0 var(--r-md) var(--r-md) 0;
  background:var(--bg-warm);border-left:4px solid var(--brand);
  color:var(--text-2);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:24px auto;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--text-3)}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#D94410}
.article-body strong{font-weight:800;color:var(--ink)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body code{
  padding:2px 7px;border-radius:8px;background:#F2F3F8;color:#B93A6A;
  font-size:15px;font-family:var(--font-num);
}
.article-body pre{
  margin:22px 0;padding:18px;border-radius:var(--r-md);background:#161922;color:#E7E9F2;
  overflow-x:auto;font-size:14.5px;line-height:1.75;
}
.article-body table{
  width:100%;margin:24px 0;border:1px solid var(--line);border-radius:var(--r-md);
  border-collapse:separate;border-spacing:0;overflow:hidden;font-size:15.5px;
}
.article-body th{background:#FAF7F5;padding:13px 16px;text-align:left;font-weight:700;color:var(--ink)}
.article-body td{padding:13px 16px;border-top:1px solid var(--line);color:var(--text-2)}
.article-body tr:first-child th{border-top:0}

/* 文章尾部组件 */
.article-tags{max-width:800px;margin:28px auto 0;display:flex;flex-wrap:wrap;gap:10px}
.article-tags a{
  display:inline-flex;align-items:center;height:32px;padding:0 15px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:13.5px;font-weight:600;color:var(--text-2);
  transition:all .2s ease;
}
.article-tags a:hover{color:var(--brand);border-color:rgba(255,106,43,.4);transform:translateY(-2px);text-decoration:none}

.post-nav{max-width:800px;margin:28px auto 0;display:grid;gap:16px;grid-template-columns:1fr}
@media (min-width:640px){.post-nav{grid-template-columns:1fr 1fr}}
.post-nav a{
  display:flex;flex-direction:column;gap:8px;padding:20px 22px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);transition:all .25s ease;box-shadow:var(--shadow-sm);
}
.post-nav a:hover{transform:translateY(-4px);border-color:rgba(255,106,43,.3);box-shadow:var(--shadow-md);text-decoration:none}
.post-nav .pn-label{font-size:12.5px;font-weight:700;color:var(--text-3);letter-spacing:.5px}
.post-nav .pn-title{font-size:16px;font-weight:700;color:var(--ink);line-height:1.55}

.rel-block{max-width:800px;margin:44px auto 0}
.rel-block h2{
  position:relative;padding-left:18px;font-size:22px;line-height:1.4;margin-bottom:22px;
}
.rel-block h2::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:18px;border-radius:2px;background:var(--grad);
}
.rel-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1200px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,106,43,.3)}
.rel-card figure{position:relative;margin:0;aspect-ratio:16/9;overflow:hidden;border-radius:0}
.rel-card figure img{width:100%;height:100%;object-fit:cover;margin:0;border-radius:0;transition:transform .4s ease}
.rel-card:hover figure img{transform:scale(1.03)}
.rel-card .rl-body{padding:18px 20px 22px}
.rel-card h3{font-size:17px;line-height:1.55;margin-bottom:8px}
.rel-card p{font-size:14.5px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .rl-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--brand)}
.rel-card .rl-more svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

.back-entry{max-width:800px;margin:36px auto 0;display:flex;justify-content:center}

/* ============ 侧栏目录 ============ */
.article-aside{display:none}
@media (min-width:1200px){.article-aside{display:block}}
.toc-card{
  position:sticky;top:96px;padding:22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-sm);
}
.toc-card h3{font-size:15px;font-weight:800;margin-bottom:14px;color:var(--ink)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow:auto}
.toc-list a{
  display:block;padding:7px 12px;border-radius:10px;border-left:2px solid transparent;
  font-size:14px;font-weight:500;color:var(--text-2);line-height:1.6;
  transition:all .2s ease;
}
.toc-list a:hover{color:var(--brand);background:rgba(255,106,43,.06);text-decoration:none}
.toc-list a.on{color:var(--brand);font-weight:700;border-left-color:var(--brand);background:rgba(255,106,43,.07)}
.toc-tip{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);line-height:1.75}

/* ============ 空态 ============ */
.empty-state{
  max-width:800px;margin:0 auto;padding:56px 28px;text-align:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);
}
.empty-ico{
  width:120px;height:120px;margin:0 auto 22px;border-radius:var(--r-xl);
  background:var(--grad);opacity:.14;
}
.empty-state h2{font-size:22px;margin-bottom:12px}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:26px;line-height:1.8}

/* ============ 深色 CTA ============ */
.cta-dark{
  position:relative;overflow:hidden;margin-top:72px;padding:56px 0;
  background:var(--ink);color:#fff;
}
.cta-dark::before{
  content:"";position:absolute;top:-160px;left:-120px;width:480px;height:480px;
  background:radial-gradient(circle,rgba(123,77,255,.28),transparent 68%);
}
.cta-dark::after{
  content:"";position:absolute;bottom:-200px;right:-100px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(255,61,119,.26),transparent 70%);
}
.cta-inner{position:relative;z-index:1;display:grid;gap:28px;align-items:center}
@media (min-width:992px){.cta-inner{grid-template-columns:1.15fr 1fr;gap:56px}}
.cta-inner h2{color:#fff;font-size:30px;line-height:1.35}
.cta-inner p{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.72);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-panel{
  padding:26px 24px;border-radius:var(--r-xl);background:#fff;color:var(--ink);
  box-shadow:var(--shadow-lg);
}
.cta-panel h3{font-size:19px;margin-bottom:6px}
.cta-panel .cp-tip{font-size:14px;color:var(--text-2);margin-bottom:18px;line-height:1.75}
.field{margin-bottom:14px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:14px;
  font-size:15px;color:var(--ink);background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
  font-family:inherit;
}
.field input::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,106,43,.2);
}
.cta-panel .btn-grad{width:100%;height:48px}
.cp-note{margin-top:12px;font-size:12.5px;color:var(--text-3);line-height:1.7}

/* 数字徽章 */
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.stat{
  min-width:132px;padding:14px 16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.72);border:1px solid rgba(255,106,43,.2);
}
.stat b{
  display:block;font-family:var(--font-num);font-size:26px;font-weight:800;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat span{display:block;margin-top:5px;font-size:12.5px;color:var(--text-2)}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category2 */
:root{
  --c-primary:#FF6A2B;
  --c-primary-deep:#E24E14;
  --c-secondary:#FF3D77;
  --c-accent:#7B4DFF;
  --c-cyan:#12C8B4;
  --grad-brand:linear-gradient(120deg,#FF6A2B,#FF3D77 52%,#7B4DFF);
  --grad-soft:linear-gradient(120deg,rgba(255,106,43,.12),rgba(123,77,255,.12));
  --c-bg:#F5F6FA;
  --c-warm:#FFF6F1;
  --c-ink:#12141C;
  --c-text:#12141C;
  --c-text-2:#5A607A;
  --c-text-3:#9AA0B4;
  --c-line:#E7E9F2;
  --c-success:#17B26A;
  --c-warning:#F79009;
  --c-danger:#F04438;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(18,20,28,.06);
  --shadow-md:0 12px 32px rgba(18,20,28,.08);
  --shadow-lg:0 28px 64px rgba(18,20,28,.12);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,"SFMono-Regular",monospace;
  --bs-primary:#FF6A2B;
  --bs-body-bg:#F5F6FA;
  --bs-body-color:#12141C;
  --bs-font-sans-serif:var(--font-sans);
  --bs-border-radius:16px;
  --bs-border-radius-lg:24px;
  --bs-link-color:#FF6A2B;
  --bs-link-hover-color:#E24E14;
  --bs-secondary-bg:#FFF6F1;
  --bs-emphasis-color:#12141C;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
svg{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .2s ease-out,text-decoration-color .2s ease-out;}
a:hover{color:var(--c-primary-deep);text-decoration:underline;}
a:focus-visible,button:focus-visible,input:focus-visible,.accordion-button:focus-visible{
  outline:3px solid rgba(255,106,43,.35);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:800;line-height:1.3;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ============ Header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  height:68px;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.98);
  border-bottom-color:var(--c-line);
  box-shadow:var(--shadow-sm);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;}
.logo:hover{text-decoration:none;}
.logo-mark{
  width:36px;height:36px;border-radius:12px;flex:0 0 36px;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:20px;
  box-shadow:0 8px 18px rgba(255,61,119,.28);
}
.logo-mark svg{width:20px;height:20px;stroke-width:2.1;}
.logo-text{
  font-size:20px;font-weight:800;letter-spacing:.2px;
  background:linear-gradient(120deg,#FF6A2B,#7B4DFF);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:#FF6A2B;
  white-space:nowrap;
}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-desktop a{
  position:relative;
  display:inline-block;
  padding:9px 16px;
  font-size:15.5px;
  font-weight:600;
  color:var(--c-text-2);
  border-radius:var(--r-pill);
  text-decoration:none;
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-desktop a::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:0;height:2px;border-radius:2px;background:var(--grad-brand);
  transform:translateX(-50%);
  transition:width .22s ease-out;
}
.nav-desktop a:hover{color:var(--c-primary);background:rgba(255,106,43,.06);text-decoration:none;}
.nav-desktop a:hover::after{width:24px;}
.nav-desktop a.active{color:var(--c-primary);background:rgba(255,106,43,.08);}
.nav-desktop a.active::after{width:24px;}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:16px;}
.nav-sub{font-size:15px;font-weight:600;color:var(--c-text-2);text-decoration:none;}
.nav-sub:hover{color:var(--c-primary);text-decoration:none;}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;
  background:#fff;color:var(--c-ink);font-size:22px;
  align-items:center;justify-content:center;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:rgba(255,106,43,.5);color:var(--c-primary);}
.nav-toggle svg{width:22px;height:22px;}

/* ============ Buttons ============ */
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border:0;border-radius:var(--r-pill);
  background:var(--grad-brand);
  color:#fff;font-size:16px;font-weight:600;letter-spacing:.3px;
  box-shadow:0 10px 24px rgba(255,61,119,.24);
  cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
}
.btn-grad:hover,.btn-grad:focus{color:#fff;text-decoration:none;filter:brightness(1.04);transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,61,119,.28);}
.btn-grad:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,61,119,.22);}
.btn-sm{height:44px;padding:0 20px;font-size:15px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  background:transparent;border:1px solid rgba(255,255,255,.32);
  color:#fff;font-size:16px;font-weight:600;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;text-decoration:none;}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);
  color:var(--c-ink);font-size:16px;font-weight:600;
  transition:border-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn-line:hover{border-color:rgba(255,106,43,.55);color:var(--c-primary);text-decoration:none;transform:translateY(-2px);}
.btn-link-plain{font-size:15px;font-weight:700;color:var(--c-primary);}
.btn-link-plain:hover{color:var(--c-primary-deep);}

/* ============ Hero / Page head ============ */
.page-head{
  position:relative;margin-top:68px;
  min-height:352px;
  display:flex;align-items:flex-end;
  background:#12141C;
  overflow:hidden;
}
.page-head-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.42;
  transform:scale(1.02);
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(18,20,28,.94) 6%,rgba(18,20,28,.78) 48%,rgba(123,77,255,.5) 100%);
}
.page-head-inner{position:relative;z-index:2;width:100%;padding:32px 0 48px;}
.crumb{
  display:flex;align-items:center;gap:8px;height:40px;
  font-size:13px;color:rgba(255,255,255,.66);margin-bottom:10px;
}
.crumb a{color:rgba(255,255,255,.72);text-decoration:none;}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb .sep{color:rgba(255,255,255,.34);}
.crumb .now{color:#fff;font-weight:600;}
.page-head h1{
  color:#fff;font-size:44px;line-height:1.25;letter-spacing:.4px;
  max-width:820px;
}
.page-head .head-sub{
  margin-top:16px;max-width:640px;
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.78);
}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.head-tags span{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  color:#fff;font-size:13px;font-weight:600;
}

/* ============ Section base ============ */
.section{padding:96px 0;}
.section-warm{background:var(--c-warm);}
.section-ink{background:var(--c-ink);color:#fff;position:relative;overflow:hidden;}
.section-ink::before{
  content:"";position:absolute;top:-160px;right:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.28),transparent 68%);
  pointer-events:none;
}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--c-primary);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad-brand);}
.section-head h2{font-size:32px;line-height:1.3;color:var(--c-ink);}
.section-head p{margin-top:14px;font-size:16px;line-height:1.8;color:var(--c-text-2);max-width:640px;}
.section-ink .section-head h2{color:#fff;}
.section-ink .section-head p{color:rgba(255,255,255,.72);}

/* ============ Stat strip ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.stat-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-xl);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,106,43,.3);}
.stat-num{
  font-family:var(--font-num);font-size:32px;font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:#FF6A2B;
}
.stat-num em{font-style:normal;font-size:15px;font-weight:700;margin-left:4px;-webkit-text-fill-color:var(--c-text-3);color:var(--c-text-3);}
.stat-label{display:block;margin-top:8px;font-size:13px;color:var(--c-text-3);letter-spacing:.4px;}
.stat-text{margin-top:12px;font-size:15px;line-height:1.75;color:var(--c-text-2);}

/* ============ Security matrix ============ */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.sec-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:28px;height:100%;
  transition:transform .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.sec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,106,43,.3);}
.sec-icon{
  width:48px;height:48px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:23px;color:#fff;margin-bottom:18px;
  background:var(--grad-brand);
}
.sec-icon.i2{background:linear-gradient(120deg,#FF3D77,#7B4DFF);}
.sec-icon.i3{background:linear-gradient(120deg,#7B4DFF,#12C8B4);}
.sec-icon.i4{background:linear-gradient(120deg,#12C8B4,#FF6A2B);}
.sec-icon.i5{background:linear-gradient(120deg,#F79009,#FF3D77);}
.sec-icon.i6{background:linear-gradient(120deg,#5A607A,#7B4DFF);}
.sec-card h3{font-size:18px;line-height:1.45;font-weight:700;}
.sec-card p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--c-text-2);}
.sec-foot{
  margin-top:auto;padding-top:20px;
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--c-line);
}
.sec-foot .tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  font-size:12px;font-weight:700;letter-spacing:.4px;
  color:var(--c-primary);background:rgba(255,106,43,.08);
  border:1px solid rgba(255,106,43,.2);border-radius:var(--r-pill);
}
.sec-foot a{font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:6px;}
.sec-foot a svg{width:15px;height:15px;transition:transform .2s ease-out;}
.sec-foot a:hover svg{transform:translateX(3px);}

/* ============ Split block ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--shadow-lg);
  aspect-ratio:4/3;
  border:1px solid var(--c-line);
}
.split-media img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-xl);}
.split-media .float-badge{
  position:absolute;left:20px;bottom:20px;
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;border-radius:var(--r-md);
  background:rgba(18,20,28,.86);backdrop-filter:blur(6px);
  color:#fff;
}
.split-media .float-badge strong{
  font-family:var(--font-num);font-size:24px;font-weight:800;line-height:1;
  background:linear-gradient(120deg,#FF6A2B,#FF3D77);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:#FF6A2B;
  font-variant-numeric:tabular-nums;
}
.split-media .float-badge span{font-size:12.5px;color:rgba(255,255,255,.72);display:block;line-height:1.4;max-width:120px;}
.split-body h2{font-size:32px;line-height:1.32;}
.split-body > p{margin-top:16px;font-size:16.5px;line-height:1.85;color:var(--c-text-2);}
.check-list{margin-top:24px;display:grid;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--c-text);}
.check-list .ck{
  flex:0 0 22px;width:22px;height:22px;margin-top:4px;border-radius:50%;
  background:rgba(255,106,43,.1);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
}
.check-list .ck svg{width:13px;height:13px;stroke-width:2.6;}
.mini-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.mini-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm);
}
.mini-badge b{font-family:var(--font-num);font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:#FF6A2B;}
.mini-badge span{font-size:13px;color:var(--c-text-3);}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.accordion-item{
  border:0;background:#fff;border-radius:18px !important;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.accordion-button{
  background:#fff;color:var(--c-ink);
  font-size:17px;font-weight:700;line-height:1.6;
  padding:22px 24px;border-radius:18px !important;
  box-shadow:none !important;
  position:relative;
}
.accordion-button::after{
  width:20px;height:20px;background-size:20px;
  filter:invert(48%) sepia(72%) saturate(2698%) hue-rotate(345deg) brightness(101%) contrast(101%);
}
.accordion-button:not(.collapsed){
  color:var(--c-primary);
  background:rgba(255,106,43,.05);
}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:var(--grad-brand);
}
.accordion-body{
  padding:0 24px 24px;font-size:16px;line-height:1.85;color:var(--c-text-2);
  background:rgba(255,106,43,.05);
}

/* ============ CTA band ============ */
.cta-band{
  position:relative;background:var(--c-ink);color:#fff;
  border-radius:var(--r-xl);overflow:hidden;
  padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,77,255,.38),transparent 68%);
}
.cta-band-inner{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:28px;line-height:1.35;}
.cta-band p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.72);max-width:560px;}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ============ Footer ============ */
.site-footer{
  position:relative;background:var(--c-ink);color:rgba(255,255,255,.72);
  padding:72px 0 0;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:-180px;right:-120px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.22),transparent 66%);
  pointer-events:none;
}
.footer-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.6);max-width:300px;}
.footer-brand .logo-text{-webkit-text-fill-color:#fff;color:#fff;background:none;}
.footer-col h4{
  color:rgba(255,255,255,.95);font-size:15px;font-weight:700;
  margin-bottom:18px;letter-spacing:.4px;
}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.6);text-decoration:none;
  display:inline-block;transition:color .2s ease-out,transform .2s ease-out;
}
.footer-col a:hover{color:var(--c-primary);transform:translateX(2px);text-decoration:none;}
.footer-bottom{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0;font-size:13.5px;color:rgba(255,255,255,.5);
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ============ Offcanvas ============ */
.offcanvas{border:0;background:#fff;}
.offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px;}
.offcanvas-title{font-size:17px;font-weight:800;color:var(--c-ink);}
.offcanvas-body{padding:14px 12px;}
.drawer-nav{display:grid;gap:6px;}
.drawer-nav a{
  display:block;padding:14px 16px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;color:var(--c-text-2);text-decoration:none;
  transition:background .2s ease-out,color .2s ease-out;
}
.drawer-nav a:hover{background:rgba(255,106,43,.07);color:var(--c-primary);text-decoration:none;}
.drawer-nav a.active{background:rgba(255,106,43,.1);color:var(--c-primary);}
.drawer-cta{margin-top:18px;display:grid;gap:12px;}
.drawer-cta .btn-grad,.drawer-cta .btn-line{width:100%;}

/* ============ Mobile bottom tab ============ */
.mobile-tab{display:none;}

/* ============ Responsive ============ */
@media (max-width:1199px){
  .page-head h1{font-size:38px;}
}
@media (max-width:991px){
  body{padding-bottom:76px;}
  .nav-desktop,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:72px 0;}
  .section-head h2,.split-body h2{font-size:28px;}
  .matrix{grid-template-columns:repeat(2,1fr);gap:20px;}
  .stat-strip{grid-template-columns:1fr;gap:18px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-media{aspect-ratio:16/10;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}

  .mobile-tab{
    position:fixed;left:0;right:0;bottom:0;z-index:1050;
    display:grid;grid-template-columns:repeat(5,1fr);
    background:#fff;border-top:1px solid var(--c-line);
    height:60px;
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -6px 20px rgba(18,20,28,.06);
  }
  .mobile-tab .tab-item{
    position:relative;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:11px;font-weight:600;color:var(--c-text-3);text-decoration:none;
    transition:color .2s ease-out,transform .2s ease-out;
  }
  .mobile-tab .tab-item svg{width:21px;height:21px;}
  .mobile-tab .tab-item:hover{text-decoration:none;color:var(--c-primary);}
  .mobile-tab .tab-item.active{color:var(--c-primary);}
  .mobile-tab .tab-item.active svg{transform:translateY(-2px);}
  .mobile-tab .tab-item.active::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--grad-brand);
  }
  .mobile-tab .tab-cta{color:var(--c-primary);}
  .mobile-tab .tab-cta .tab-ic{
    width:30px;height:30px;border-radius:50%;background:var(--grad-brand);color:#fff;
    display:inline-flex;align-items:center;justify-content:center;
  }
  .mobile-tab .tab-cta .tab-ic svg{width:16px;height:16px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .page-head{min-height:318px;}
  .page-head-inner{padding:20px 0 36px;}
  .page-head h1{font-size:28px;line-height:1.35;}
  .page-head .head-sub{font-size:15.5px;margin-top:12px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .section-head h2,.split-body h2{font-size:24px;}
  .matrix{grid-template-columns:1fr;}
  .sec-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .btn-grad,.btn-line,.btn-ghost{width:100%;}
  .cta-actions{width:100%;}
  .accordion-button{font-size:16px;padding:18px 18px;}
  .accordion-body{padding:0 18px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
:root{
  --brand:#FF6A2B;
  --brand-2:#FF3D77;
  --brand-3:#7B4DFF;
  --teal:#12C8B4;
  --grad:linear-gradient(120deg,#FF6A2B,#FF3D77 52%,#7B4DFF);
  --grad-soft:linear-gradient(120deg,rgba(255,106,43,.10),rgba(255,61,119,.08) 52%,rgba(123,77,255,.10));
  --grad-line:linear-gradient(180deg,#FF6A2B,#FF3D77 52%,#7B4DFF);

  --ink:#12141C;
  --ink-2:#5A607A;
  --ink-3:#9AA0B4;
  --line:#E7E9F2;
  --bg:#F5F6FA;
  --bg-warm:#FFF6F1;
  --white:#ffffff;

  --ok:#17B26A;
  --warn:#F79009;
  --err:#F04438;
  --picked:#7B4DFF;

  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Barlow","Helvetica Neue",Arial,sans-serif;

  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;

  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:48px;
  --sp-7:72px;
  --sp-8:96px;

  --shadow-sm:0 2px 8px rgba(18,20,28,.06);
  --shadow-md:0 12px 32px rgba(18,20,28,.08);
  --shadow-lg:0 28px 64px rgba(18,20,28,.12);
  --shadow-btn:0 14px 32px rgba(255,61,119,.28);

  /* Bootstrap 覆盖 */
  --bs-primary:#FF6A2B;
  --bs-primary-rgb:255,106,43;
  --bs-body-bg:#F5F6FA;
  --bs-body-color:#12141C;
  --bs-font-sans-serif:var(--font-sans);
  --bs-border-radius:16px;
  --bs-border-radius-lg:24px;
  --bs-border-radius-sm:12px;
  --bs-link-color:#FF6A2B;
  --bs-link-hover-color:#D94A12;
  --bs-secondary-bg:#FFF6F1;
  --bs-emphasis-color:#12141C;
  --bs-border-color:#E7E9F2;
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  padding-bottom:0;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,text-underline-offset .2s ease-out;}
a:hover{color:#D94A12;text-decoration:underline;text-underline-offset:3px;}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible{
  outline:3px solid rgba(255,106,43,.35);
  outline-offset:2px;
  border-radius:var(--r-sm);
}
h1,h2,h3,h4,h5{margin:0 0 var(--sp-3);color:var(--ink);font-weight:800;line-height:1.3;}
h1{font-size:44px;line-height:1.25;letter-spacing:-.5px;}
h2{font-size:32px;line-height:1.3;letter-spacing:-.3px;}
h3{font-size:22px;line-height:1.4;}
h4{font-size:18px;}
p{margin:0 0 var(--sp-3);}
ul,ol{margin:0 0 var(--sp-3);padding-left:1.2em;}
li{margin-bottom:6px;}
button{font-family:inherit;}
section{position:relative;}

/* ===== 容器 ===== */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container{max-width:1320px;}
}

/* ===== 按钮 ===== */
.btn-grad{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border:0;
  border-radius:var(--r-pill);
  background:var(--grad);
  color:#fff;
  font-size:16px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  box-shadow:0 6px 18px rgba(255,61,119,.20);
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
}
.btn-grad:hover{
  color:#fff;
  text-decoration:none;
  filter:brightness(1.04);
  transform:translateY(-2px);
  box-shadow:var(--shadow-btn);
}
.btn-grad:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,61,119,.22);}
.btn-grad.btn-sm{height:44px;padding:0 20px;font-size:15px;}
.btn-grad[disabled],.btn-grad.is-disabled{opacity:.4;pointer-events:none;}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border:1px solid rgba(255,255,255,.32);
  border-radius:var(--r-pill);
  background:transparent;
  color:#fff;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  transition:background .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff;text-decoration:none;transform:translateY(-2px);}

.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:#fff;
  color:var(--ink);
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  transition:border-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn-line:hover{border-color:var(--brand);color:var(--brand);text-decoration:none;transform:translateY(-2px);}

.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
}
.btn-text svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease-out;}
.btn-text:hover{text-decoration:none;}
.btn-text:hover svg{transform:translateX(3px);}

/* ===== 导航 ===== */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1040;
  height:68px;
  display:flex;
  align-items:center;
  background:rgba(255,255,255,.90);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease-out,border-color .25s ease-out,background .25s ease-out;
}
.site-header.is-scrolled{
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  background:rgba(255,255,255,.96);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  width:100%;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo:hover{text-decoration:none;}
.logo-mark{
  width:36px;
  height:36px;
  border-radius:12px;
  background:var(--grad);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 16px rgba(255,61,119,.24);
}
.logo-mark svg{
  width:22px;height:22px;
  fill:none;
  stroke:#fff;
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.logo-text{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.2px;
  background:linear-gradient(120deg,#FF6A2B,#FF3D77 60%,#7B4DFF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.nav-desktop{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:26px;
  flex:1 1 auto;
}
.nav-desktop a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-desktop a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:4px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  transform:translateX(-50%);
  transition:width .22s ease-out;
}
.nav-desktop a:hover{color:var(--ink);text-decoration:none;background:rgba(255,106,43,.06);}
.nav-desktop a:hover::after{width:24px;}
.nav-desktop a.active{
  color:var(--brand);
  background:rgba(255,106,43,.08);
}
.nav-desktop a.active::after{width:24px;}
.nav-right{
  display:flex;
  align-items:center;
  gap:16px;
  margin-left:auto;
  flex:0 0 auto;
}
.nav-sub{
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
}
.nav-sub:hover{color:var(--brand);text-decoration:none;}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle svg{width:22px;height:22px;fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;}

/* 移动抽屉 */
.offcanvas.drawer{
  width:min(86vw,360px);
  border:0;
  border-radius:0 var(--r-xl) var(--r-xl) 0;
}
.drawer .offcanvas-header{
  padding:20px;
  border-bottom:1px solid var(--line);
}
.drawer .offcanvas-body{padding:16px 20px 32px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 16px;
  border-radius:var(--r-md);
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  background:var(--bg);
}
.drawer-nav a.active{background:rgba(255,106,43,.10);color:var(--brand);}
.drawer-nav a:hover{text-decoration:none;background:rgba(255,106,43,.08);color:var(--brand);}

/* ===== 移动底部 Tab ===== */
.mobile-tab{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:1050;
  display:none;
  align-items:stretch;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(18,20,28,.06);
}
.mobile-tab a{
  position:relative;
  flex:1 1 0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:11px;
  font-weight:600;
  color:var(--ink-3);
  transition:color .2s ease-out,transform .2s ease-out;
}
.mobile-tab a:hover{text-decoration:none;color:var(--brand);}
.mobile-tab a svg{
  width:22px;height:22px;
  fill:none;
  stroke:currentColor;
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
  transition:transform .2s ease-out;
}
.mobile-tab a.active{color:var(--brand);}
.mobile-tab a.active svg{transform:translateY(-2px);}
.mobile-tab a.active::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  width:28px;height:3px;
  border-radius:0 0 3px 3px;
  background:var(--grad);
  transform:translateX(-50%);
}
.mobile-tab a.tab-cta{
  color:#fff;
  margin:10px 8px;
  border-radius:var(--r-pill);
  background:var(--grad);
  font-size:12px;
}
.mobile-tab a.tab-cta span{color:#fff;}
.mobile-tab a.tab-cta:hover{color:#fff;}

/* ===== 分类页头图 ===== */
.page-hero{
  position:relative;
  margin-top:68px;
  min-height:340px;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  background:var(--ink);
}
.page-hero img.hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  aspect-ratio:16/5;
  opacity:.42;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(18,20,28,.90) 8%,rgba(18,20,28,.62) 52%,rgba(123,77,255,.42));
}
.page-hero .hero-inner{
  position:relative;
  z-index:2;
  padding:56px 0 44px;
  max-width:780px;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px;
  margin-bottom:16px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.10);
  color:#fff;
  font-size:13px;
  font-weight:600;
}
.hero-tag svg{width:15px;height:15px;fill:none;stroke:var(--teal);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.page-hero h1{
  color:#fff;
  font-size:44px;
  margin-bottom:14px;
}
.page-hero p{
  color:rgba(255,255,255,.82);
  font-size:17px;
  line-height:1.8;
  max-width:620px;
  margin-bottom:0;
}

/* ===== 面包屑 ===== */
.crumb-row{
  display:flex;
  align-items:center;
  min-height:40px;
  padding-top:18px;
  padding-bottom:6px;
}
.breadcrumb-fake{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  list-style:none;
  margin:0;
  padding:0;
}
.breadcrumb-fake li{display:inline-flex;align-items:center;gap:8px;margin:0;}
.breadcrumb-fake li+li::before{content:"/";color:var(--ink-3);}
.breadcrumb-fake a{color:var(--ink-2);}
.breadcrumb-fake .current{color:var(--ink);font-weight:600;}

/* ===== 板块通用 ===== */
.section{padding:72px 0;}
.section-sm{padding:56px 0;}
.section-warm{background:var(--bg-warm);}
.section-white{background:#fff;}
.section-dark{background:var(--ink);color:#fff;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--ink-2);font-size:17px;margin-bottom:0;}
.section-dark .section-head h2{color:#fff;}
.section-dark .section-head p{color:rgba(255,255,255,.72);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--brand);
  margin-bottom:10px;
}
.eyebrow::before{
  content:"";
  width:22px;height:3px;
  border-radius:2px;
  background:var(--grad);
}
.pill-line{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,106,43,.20);
  background:rgba(255,106,43,.07);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
}
.pill.teal{border-color:rgba(18,200,180,.24);background:rgba(18,200,180,.10);color:#0E9C8D;}
.pill.purple{border-color:rgba(123,77,255,.24);background:rgba(123,77,255,.10);color:var(--brand-3);}

/* ===== 情形判断 ===== */
.judge-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:48px;
  align-items:center;
}
.judge-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-md);
  background:var(--grad-soft);
}
.judge-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .4s ease-out;
}
.judge-media:hover img{transform:scale(1.03);}
.check-list{list-style:none;padding:0;margin:0;}
.check-list li{
  display:flex;
  gap:12px;
  padding:14px 0;
  border-bottom:1px dashed var(--line);
  font-size:16px;
  color:var(--ink-2);
  margin:0;
}
.check-list li:last-child{border-bottom:0;}
.check-list .ck{
  flex:0 0 auto;
  width:24px;height:24px;
  margin-top:5px;
  border-radius:8px;
  background:var(--grad-soft);
  border:1px solid rgba(255,106,43,.22);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.check-list .ck svg{width:14px;height:14px;fill:none;stroke:var(--brand);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.check-list strong{color:var(--ink);font-weight:700;}

/* ===== 时间线 ===== */
.timeline{
  position:relative;
  list-style:none;
  margin:0;
  padding:0 0 0 44px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;
  top:10px;
  bottom:14px;
  width:2px;
  border-radius:2px;
  background:var(--grad-line);
}
.tl-item{
  position:relative;
  margin-bottom:24px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;
  left:-44px;
  top:26px;
  width:14px;
  height:14px;
  border-radius:50%;
  background:var(--grad);
  box-shadow:0 0 0 4px #fff,0 0 0 5px rgba(255,106,43,.18);
}
.tl-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px 28px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.tl-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:rgba(255,106,43,.30);
}
.tl-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:44px;
  height:30px;
  padding:0 12px;
  margin-bottom:10px;
  border-radius:var(--r-sm);
  background:var(--grad);
  color:#fff;
  font-family:var(--font-num);
  font-size:16px;
  font-weight:800;
  letter-spacing:1px;
  font-variant-numeric:tabular-nums;
}
.tl-card h3{font-size:18px;margin-bottom:6px;}
.tl-card p{margin:0;color:var(--ink-2);font-size:15px;line-height:1.75;}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:12px;
}
.tl-meta span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--ink-3);
}
.tl-meta span::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--teal);
}

/* ===== 准备信息卡片 ===== */
.prep-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.prep-card{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:28px 24px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:#fff;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.prep-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:rgba(255,106,43,.30);
}
.prep-icon{
  width:48px;height:48px;
  border-radius:14px;
  background:var(--grad-soft);
  border:1px solid rgba(255,106,43,.18);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.prep-icon svg{width:24px;height:24px;fill:none;stroke:var(--brand);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.prep-card h3{font-size:18px;margin-bottom:8px;}
.prep-card p{font-size:15px;line-height:1.75;color:var(--ink-2);margin-bottom:16px;}
.prep-card .btn-text{margin-top:auto;}

/* ===== FAQ 手风琴 ===== */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  border:0;
  border-radius:18px !important;
  background:#fff;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--line);
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  position:relative;
  width:100%;
  padding:22px 56px 22px 24px;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  background:#fff;
  border:0;
  box-shadow:none !important;
  line-height:1.5;
}
.accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--grad);
  opacity:0;
  transition:opacity .2s ease-out;
}
.accordion-button:not(.collapsed){color:var(--brand);background:#fff;}
.accordion-button:not(.collapsed)::before{opacity:1;}
.accordion-button::after{
  position:absolute;
  right:22px;
  width:26px;height:26px;
  border-radius:50%;
  background-color:rgba(255,106,43,.10);
  background-image:none;
  content:"";
  display:flex;
  transition:transform .2s ease-out,background-color .2s ease-out;
}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23FF6A2B' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:center;
  background-size:14px 14px;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(90deg);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23FF6A2B' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='M5 12h14'/%3E%3C/svg%3E");
  background-color:rgba(255,106,43,.16);
}
.accordion-body{
  padding:0 24px 24px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
}
.accordion-body p:last-child{margin-bottom:0;}

/* ===== CTA / 提示卡 ===== */
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--ink);
  color:#fff;
  padding:48px;
  box-shadow:var(--shadow-lg);
}
.cta-card::before{
  content:"";
  position:absolute;
  top:-120px;right:-80px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(closest-side,rgba(255,61,119,.36),rgba(123,77,255,.14),transparent 72%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,420px);
  gap:48px;
  align-items:center;
}
.cta-inner h2{color:#fff;font-size:30px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:16px;line-height:1.85;}
.cta-note{
  display:flex;
  gap:10px;
  align-items:flex-start;
  margin-top:18px;
  padding:14px 16px;
  border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  font-size:14px;
  color:rgba(255,255,255,.80);
  line-height:1.7;
}
.cta-note svg{
  flex:0 0 auto;
  width:18px;height:18px;
  margin-top:4px;
  fill:none;
  stroke:var(--teal);
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.form-card{
  background:#fff;
  border-radius:var(--r-xl);
  padding:28px;
  box-shadow:var(--shadow-lg);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-sub{font-size:14px;color:var(--ink-2);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:8px;
}
.field .control,
.field input,
.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  font-size:15px;
  color:var(--ink);
  font-family:inherit;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field textarea{
  height:auto;
  min-height:96px;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
}
.field input::placeholder,
.field textarea::placeholder{color:var(--ink-3);}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(255,106,43,.20);
}
.field.has-error input,
.field.has-error textarea{border-color:var(--err);}
.field .err-text{
  display:none;
  margin-top:6px;
  font-size:13px;
  color:var(--err);
}
.field.has-error .err-text{display:block;}
.form-card .btn-grad{width:100%;}
.form-tip{
  margin-top:14px;
  font-size:13px;
  color:var(--ink-3);
  line-height:1.6;
}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  margin-top:0;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-160px;right:-100px;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(closest-side,rgba(255,106,43,.28),rgba(123,77,255,.10),transparent 70%);
  pointer-events:none;
}
.footer-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo-text{
  background:linear-gradient(120deg,#FF8A4F,#FF6E9C 60%,#A98BFF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.62);
  max-width:300px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  display:inline-block;
  font-size:14px;
  color:rgba(255,255,255,.62);
  transition:color .2s ease-out,transform .2s ease-out;
}
.footer-col a:hover{color:var(--brand);text-decoration:none;transform:translateX(2px);}
.footer-bottom{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 calc(20px + env(safe-area-inset-bottom));
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;
  color:rgba(255,255,255,.52);
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--brand);text-decoration:none;}

/* ===== 动效 ===== */
.fade-up{
  opacity:0;
  transform:translateY(12px);
  animation:fadeUp .45s ease-out forwards;
}
@keyframes fadeUp{
  to{opacity:1;transform:translateY(0);}
}
.d1{animation-delay:.06s;}
.d2{animation-delay:.12s;}
.d3{animation-delay:.18s;}
.d4{animation-delay:.24s;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .judge-grid{gap:32px;}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:32px;}
}
@media (max-width:991px){
  body{padding-bottom:76px;}
  .nav-desktop,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-tab{display:flex;}
  .page-hero{margin-top:68px;min-height:300px;}
  .page-hero h1{font-size:34px;}
  h1{font-size:34px;}
  h2{font-size:27px;}
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .judge-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .prep-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-card{padding:36px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .page-hero{min-height:270px;}
  .page-hero .hero-inner{padding:40px 0 32px;}
  .page-hero h1{font-size:28px;}
  .page-hero p{font-size:15px;}
  h1{font-size:28px;line-height:1.35;}
  h2{font-size:23px;}
  h3{font-size:19px;}
  .section{padding:52px 0;}
  .section-sm{padding:40px 0;}
  .section-head{margin-bottom:28px;}
  .prep-grid{grid-template-columns:minmax(0,1fr);}
  .timeline{padding-left:34px;}
  .timeline::before{left:8px;}
  .tl-dot{left:-34px;top:24px;}
  .tl-card{padding:20px;}
  .cta-card{padding:28px 22px;border-radius:var(--r-lg);}
  .cta-inner h2{font-size:22px;}
  .form-card{padding:22px;}
  .accordion-button{font-size:16px;padding:18px 52px 18px 18px;}
  .accordion-body{padding:0 18px 20px;font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:575px){
  .mobile-tab a span{font-size:10px;}
  .pill-line{gap:8px;}
  .pill{font-size:12px;height:30px;padding:0 12px;}
}