/* roulang page: index */
:root{
  --c-primary:#1A5FD0;
  --c-primary-d:#0F3F96;
  --c-primary-s:#E9F1FE;
  --c-accent:#FF6A2B;
  --c-accent-d:#E85B1E;
  --c-accent-s:#FFF1E8;
  --c-ink:#0F1B2D;
  --c-ink2:#4A5568;
  --c-ink3:#8B95A6;
  --c-line:#E5EAF3;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-dark:#0E1B33;
  --success:#12A150;
  --warn:#E8A33D;
  --danger:#E5484D;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,45,.05);
  --sh-2:0 6px 20px rgba(15,27,45,.07);
  --sh-3:0 16px 40px rgba(15,27,45,.12);
  --ease:200ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.3px}
em{font-style:normal}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
::selection{background:var(--c-primary);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 顶部倒计时条 ============ */
.topbar{background:var(--c-accent);color:#fff}
.topbar-inner{display:flex;align-items:center;gap:20px;height:44px}
.topbar-note{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:8px}
.topbar-note i{font-size:13px}
.countdown{display:flex;align-items:center;gap:8px;margin-left:auto}
.cd-cell{display:flex;flex-direction:column;align-items:center;position:relative}
.cd-cell b{
  display:flex;align-items:center;justify-content:center;
  width:48px;height:32px;border-radius:var(--r-s);
  background:rgba(255,255,255,.18);font-size:18px;font-weight:700;line-height:1;
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum";
}
.cd-cell i{font-size:10px;font-style:normal;opacity:.9;line-height:1;margin-top:5px}
.topbar-btn{
  height:30px;padding:0 16px;border-radius:var(--r-pill);
  background:#fff;color:var(--c-accent);font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  transition:box-shadow var(--ease),transform var(--ease);white-space:nowrap;
}
.topbar-btn:hover{box-shadow:var(--sh-2);transform:translateY(-1px)}
.topbar-btn:active{transform:none}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  transition:transform var(--ease),background var(--ease);
}
.brand:hover .brand-mark{transform:rotate(8deg);background:var(--c-primary-d)}
.brand-text{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink2);
  padding:6px 0;transition:color var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:20px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:translateX(-50%) scaleX(0);transform-origin:center;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;width:200px;height:36px;padding:0 14px;
  background:var(--c-bg);border:1px solid transparent;border-radius:var(--r-pill);
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.nav-search i{font-size:13px;color:var(--c-ink3)}
.nav-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:#A9B2C0}
.nav-search:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,95,208,.12)}
.nav-login{font-size:15px;color:var(--c-ink2);transition:color var(--ease);white-space:nowrap}
.nav-login:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;color:var(--c-ink);
  align-items:center;justify-content:center;font-size:18px;transition:background var(--ease);
}
.nav-toggle:hover{background:var(--c-primary-s)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:var(--c-accent-d);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:none;box-shadow:inset 0 2px 6px rgba(15,27,45,.18)}
.btn-blue{background:var(--c-primary);color:#fff}
.btn-blue:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-blue:active{transform:none;box-shadow:inset 0 2px 6px rgba(15,27,45,.18)}
.btn-ghost{background:var(--c-surface);border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-s)}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost-dark:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-1px)}
.btn-sm{height:36px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{background:#EEF1F6;color:#A9B2C0;border-color:transparent;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:15px;font-weight:600}
.text-link i{font-size:13px;transition:transform var(--ease)}
.text-link:hover i{transform:translateX(4px)}
.text-link:hover{text-decoration:underline}

/* ============ Hero ============ */
.hero{background:var(--c-primary-d);color:#fff;overflow:hidden;position:relative}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:60% 40%;gap:48px;
  align-items:center;padding-top:72px;padding-bottom:72px;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  font-size:13px;font-weight:600;letter-spacing:.2px;
}
.hero h1{
  margin-top:20px;font-size:44px;line-height:1.24;letter-spacing:-.5px;font-weight:700;
}
.hero h1 em{color:#FFB27A}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.82);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-trust{display:flex;flex-wrap:wrap;gap:24px;margin-top:32px}
.hero-trust li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.86)}
.hero-trust i{color:#FFB27A;font-size:14px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;height:360px;object-fit:cover;border-radius:var(--r-l);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
}
.hero-float{
  position:absolute;right:-8px;bottom:-24px;background:#fff;color:var(--c-ink);
  border-radius:var(--r-m);box-shadow:var(--sh-3);padding:16px 18px;min-width:196px;
}
.hf-row{display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:13px;color:var(--c-ink2)}
.hf-row+.hf-row{margin-top:10px;padding-top:10px;border-top:1px solid var(--c-line)}
.hf-row strong{font-size:18px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-alt{background:var(--c-surface)}
.section-dark{background:var(--c-dark);color:#fff}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{position:relative;padding-left:20px;font-size:32px;line-height:1.35}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:20px;border-radius:2px;background:var(--c-primary);
}
.sec-head p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-ink2);padding-left:20px;max-width:620px}
.sec-head.split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.sec-head.light h2{color:#fff}
.sec-head.light h2::before{background:var(--c-accent)}
.sec-head.light p{color:rgba(255,255,255,.72)}

/* ============ 卖点区 1大+3小 ============ */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.feature-main{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  box-shadow:var(--sh-2);padding:36px;display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-s)}
.fm-icon{
  width:52px;height:52px;border-radius:14px;background:var(--c-primary-s);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:22px;
}
.feature-main h3{font-size:24px;line-height:1.45}
.feature-main p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-ink2);max-width:620px}
.feature-main .text-link{margin-top:auto;padding-top:26px}
.feature-side{display:flex;flex-direction:column;gap:20px}
.feature-bar{
  display:flex;align-items:flex-start;gap:16px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-m);padding:22px;
  transition:background var(--ease),transform var(--ease),border-color var(--ease);
}
.feature-bar:hover{background:var(--c-bg);transform:translateY(-4px);border-color:var(--c-primary-s)}
.fb-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;background:var(--c-primary-s);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:17px;
}
.feature-bar h3{font-size:16px;line-height:1.5}
.feature-bar p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--c-ink2)}

/* ============ 图墙 ============ */
.filter-tabs{display:flex;flex-wrap:wrap;gap:10px}
.tab{
  height:36px;padding:0 18px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink2);font-size:14px;font-weight:500;
  transition:all var(--ease);
}
.tab:hover{border-color:var(--c-primary);color:var(--c-primary)}
.tab.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;grid-auto-rows:230px}
.g-item{
  position:relative;overflow:hidden;border-radius:var(--r-m);background:var(--c-primary-s);
  border:1px solid var(--c-line);display:block;
  transition:transform var(--ease),box-shadow var(--ease);
}
.g-item.g-large{grid-column:span 2}
.g-item:hover{transform:translateY(-4px);box-shadow:var(--sh-3)}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.2,.7,.3,1)}
.g-item:hover img{transform:scale(1.05)}
.g-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,27,51,0) 42%,rgba(14,27,51,.78) 100%);
}
.g-badge{
  position:absolute;left:14px;top:14px;z-index:3;height:22px;padding:0 8px;border-radius:6px;
  background:var(--c-accent-s);color:var(--c-accent);font-size:12px;font-weight:600;
  display:inline-flex;align-items:center;
}
.g-title{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:3;
  color:#fff;font-size:16px;font-weight:600;line-height:1.5;
}
.g-arrow{
  position:absolute;right:16px;bottom:16px;z-index:3;width:36px;height:36px;border-radius:50%;
  background:#fff;color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-size:14px;opacity:0;transform:translateY(8px);
  transition:opacity var(--ease),transform var(--ease);
}
.g-item:hover .g-arrow{opacity:1;transform:translateY(0)}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:start}
.news-hero{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  box-shadow:var(--sh-2);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-hero:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-s)}
.news-hero figure{margin:0;position:relative;background:var(--c-primary-s)}
.news-hero img{width:100%;height:230px;object-fit:cover}
.news-hero .nh-body{padding:24px}
.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:6px;
  background:var(--c-primary-s);color:var(--c-primary);font-size:12px;font-weight:600;
}
.tag-accent{background:var(--c-accent-s);color:var(--c-accent)}
.tag-muted{background:#EEF1F6;color:var(--c-ink3)}
.news-hero h3{margin-top:14px;font-size:20px;line-height:1.55;transition:color var(--ease)}
.news-hero:hover h3{color:var(--c-primary)}
.news-hero p{margin-top:12px;font-size:14px;line-height:1.8;color:var(--c-ink2)}
.nh-meta{margin-top:16px;font-size:13px;color:var(--c-ink3);display:flex;align-items:center;gap:10px}
.news-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);box-shadow:var(--sh-1);overflow:hidden}
.news-row{
  display:flex;gap:16px;padding:18px 22px;border-bottom:1px solid var(--c-line);
  transition:background var(--ease);
}
.news-row:last-child{border-bottom:0}
.news-row:hover{background:var(--c-bg)}
.news-row figure{margin:0;flex:0 0 120px;width:120px;height:80px;border-radius:10px;overflow:hidden;background:var(--c-primary-s)}
.news-row img{width:100%;height:100%;object-fit:cover}
.nr-body{min-width:0;flex:1}
.nr-body h3{
  font-size:16px;font-weight:600;line-height:1.55;margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--ease);
}
.news-row:hover .nr-body h3{color:var(--c-primary)}
.nr-body p{
  margin-top:6px;font-size:13px;line-height:1.7;color:var(--c-ink2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.nr-meta{margin-top:10px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-ink3)}
.nr-more{color:var(--c-primary);font-weight:600;white-space:nowrap}
.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-m);padding:40px 24px;text-align:center;
}
.empty-state i{font-size:28px;color:var(--c-ink3)}
.empty-state p{font-size:15px;color:var(--c-ink2)}

/* ============ 数据板块 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-m);padding:28px 24px;transition:transform var(--ease),border-color var(--ease);
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(255,178,122,.6)}
.stat-num{font-size:34px;font-weight:700;color:#fff;line-height:1.1;font-variant-numeric:tabular-nums}
.stat-num span{font-size:16px;font-weight:600;margin-left:4px;color:#FFB27A}
.stat-card h3{margin-top:12px;font-size:16px;font-weight:600;color:#fff}
.stat-card p{margin-top:8px;font-size:14px;line-height:1.75;color:rgba(255,255,255,.68)}

/* ============ CTA ============ */
.cta-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-primary);
  border-radius:var(--r-l);box-shadow:var(--sh-2);padding:44px;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;overflow:hidden;
}
.cta-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--c-primary)}
.cta-copy h2{font-size:30px;line-height:1.4}
.cta-copy p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-ink2);max-width:620px}
.cta-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--c-ink)}
.cta-list i{color:var(--success);font-size:15px;margin-top:5px}
.cta-form{
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-l);
  padding:28px;box-shadow:var(--sh-2);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field input{
  width:100%;height:48px;padding:0 16px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;outline:none;transition:border-color var(--ease),box-shadow var(--ease);
}
.field input::placeholder{color:#A9B2C0}
.field input:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,95,208,.12)}
.field.has-error input{border-color:var(--danger);box-shadow:0 0 0 4px rgba(229,72,77,.1)}
.field .err{display:none;margin-top:8px;font-size:13px;color:var(--danger)}
.field.has-error .err{display:block}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-ink2);line-height:1.7}
.check-line input{width:16px;height:16px;margin-top:4px;accent-color:var(--c-primary);flex:0 0 auto}
.form-note{margin-top:14px;font-size:12px;line-height:1.7;color:var(--c-ink3)}
.form-ok{
  display:none;margin-top:16px;padding:12px 14px;border-radius:10px;border:1px solid var(--success);
  background:#EDFBF3;color:var(--success);font-size:14px;font-weight:600;
}
.form-ok.is-show{display:flex;align-items:center;gap:8px}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:44px;align-items:start}
.faq-head h2{position:relative;padding-left:20px;font-size:32px;line-height:1.35}
.faq-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:20px;border-radius:2px;background:var(--c-primary)}
.faq-head p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-ink2);padding-left:20px}
.faq-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:16px 22px;text-align:left;font-size:16px;font-weight:600;position:relative;
  transition:color var(--ease),background var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;
  background:var(--c-accent);transform:scaleY(0);transform-origin:center;transition:transform var(--ease);
}
.faq-q:hover{color:var(--c-primary);background:var(--c-bg)}
.faq-q i{flex:0 0 auto;color:var(--c-primary);font-size:16px;transition:transform var(--ease),color var(--ease)}
.faq-item.is-open .faq-q{color:var(--c-primary)}
.faq-item.is-open .faq-q::before{transform:scaleY(1)}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--c-accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.2,.7,.3,1)}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--c-ink2)}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px}
.f-brand .brand{margin-bottom:16px}
.f-brand p{font-size:14px;line-height:1.85;color:var(--c-ink2);max-width:340px}
.f-social{display:flex;gap:12px;margin-top:20px}
.f-social a{
  width:38px;height:38px;border-radius:10px;background:var(--c-surface);border:1px solid var(--c-line);
  color:var(--c-ink2);display:flex;align-items:center;justify-content:center;font-size:15px;
  transition:all var(--ease);
}
.f-social a:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px)}
.f-col h3{font-size:15px;font-weight:700;margin-bottom:16px}
.f-col li{margin-bottom:2px}
.f-col a,.f-col span{display:inline-block;font-size:14px;line-height:2.1;color:var(--c-ink2);transition:color var(--ease),transform var(--ease)}
.f-col a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-ink3);
}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,27,45,.4);z-index:80;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;background:#fff;z-index:90;
  transform:translateX(102%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;padding:20px 0;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 16px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:17px;color:var(--c-ink)}
.drawer-close:hover{background:var(--c-bg)}
.drawer nav{padding:8px 0}
.drawer nav a{
  display:flex;align-items:center;height:48px;padding:0 20px;font-size:15px;color:var(--c-ink2);
  border-left:3px solid transparent;transition:all var(--ease);
}
.drawer nav a:hover,.drawer nav a.is-active{color:var(--c-primary);background:var(--c-primary-s);border-left-color:var(--c-primary)}
.drawer-foot{margin-top:auto;padding:20px;border-top:1px solid var(--c-line);display:flex;flex-direction:column;gap:12px}
.drawer-foot .nav-login{display:block;text-align:center;height:44px;line-height:44px;border:1px solid var(--c-line);border-radius:10px}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .nav-links{gap:22px}
}
@media (max-width:1024px){
  .nav-search{width:44px;padding:0;justify-content:center;background:transparent}
  .nav-search input{display:none}
  .news-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:210px}
  .g-item.g-large{grid-column:span 2}
}
@media (max-width:992px){
  .nav-links,.nav-login{display:none}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .brand-text{font-size:16px}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding-top:56px;padding-bottom:64px}
  .hero h1{font-size:34px;line-height:1.3}
  .hero-visual img{height:280px}
  .hero-float{right:12px;bottom:-20px}
  .feature-grid{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:26px}
  .sec-head h2,.faq-head h2{font-size:23px}
  .sec-head{padding-left:0}
  .sec-head.split{flex-direction:column;align-items:flex-start;gap:18px}
  .hero h1{font-size:28px}
  .hero-actions .btn{width:100%}
  .hero-trust{gap:14px}
  .hero-trust li{font-size:13px}
  .hero-visual img{height:220px}
  .hero-float{position:static;margin-top:16px;box-shadow:var(--sh-2)}
  .feature-main{padding:26px}
  .news-row{padding:16px}
  .news-row figure{display:none}
  .gallery{grid-template-columns:repeat(2,1fr);gap:14px;grid-auto-rows:180px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat-card{padding:20px}
  .stat-num{font-size:26px}
  .topbar-inner{gap:10px;height:auto;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}
  .topbar-note{font-size:13px;width:100%}
  .countdown{margin-left:0}
  .cd-cell b{width:40px;height:28px;font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}
}
@media (max-width:560px){
  .hero h1{font-size:25px}
  .sec-head h2,.faq-head h2{font-size:21px}
  .cta-copy h2{font-size:22px}
  .cta-card{padding:24px}
  .cta-form{padding:20px}
  .gallery{grid-template-columns:1fr;grid-auto-rows:200px}
  .g-item.g-large{grid-column:span 1}
  .stat-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column}
  .btn{width:100%}
  .faq-q{font-size:15px;padding:14px 18px}
  .faq-a p{padding:0 18px 18px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1A5FD0;
  --c-primary-d:#0F3F96;
  --c-primary-s:#E9F1FE;
  --c-accent:#FF6A2B;
  --c-accent-d:#E85B1E;
  --c-accent-s:#FFF1E8;
  --c-ink:#0F1B2D;
  --c-ink2:#4A5568;
  --c-ink3:#8B95A6;
  --c-line:#E5EAF3;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-success:#12A150;
  --c-warn:#E8A33D;
  --c-danger:#E5484D;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,45,.05);
  --sh-2:0 6px 20px rgba(15,27,45,.07);
  --sh-3:0 16px 40px rgba(15,27,45,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:28px;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:6px;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 顶部倒计时条 ============ */
.countdown-bar{
  background:var(--c-accent);
  color:#fff;
  min-height:44px;
}
.countdown-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:44px;
}
.countdown-text{
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.countdown-right{display:flex;align-items:center;gap:16px}
.countdown-cells{display:flex;gap:8px}
.cd-cell{
  width:48px;
  height:32px;
  border-radius:var(--r-s);
  background:rgba(255,255,255,.12);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  line-height:1;
}
.cd-cell b{font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.5px}
.cd-cell span{font-size:10px;opacity:.9;margin-top:2px}
.countdown-btn{
  height:30px;
  padding:0 16px;
  border-radius:var(--r-pill);
  background:#fff;
  color:var(--c-accent);
  font-size:13px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  transition:all var(--t) var(--ease);
}
.countdown-btn:hover{box-shadow:var(--sh-2);transform:translateY(-1px)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t) var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:28px;height:28px;
  border-radius:var(--r-s);
  background:var(--c-primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  transition:transform var(--t) var(--ease),background var(--t) var(--ease);
}
.brand:hover .brand-mark{transform:rotate(8deg);background:var(--c-primary-d)}
.brand-text{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:8px}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink2);
  padding:20px 0;
  display:inline-flex;
  align-items:center;
  height:64px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:14px;
  width:0;height:2px;
  background:var(--c-primary);
  transition:width var(--t) var(--ease);
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{width:20px}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{width:20px}
.nav-tools{display:flex;align-items:center;gap:16px;margin-left:auto}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:200px;
  height:36px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--c-bg);
  border:1px solid transparent;
  transition:all var(--t) var(--ease);
}
.nav-search i{color:var(--c-ink3);font-size:13px}
.nav-search input{
  border:0;
  background:transparent;
  outline:none;
  width:100%;
  font-size:14px;
  color:var(--c-ink);
}
.nav-search input::placeholder{color:#A9B2C0}
.nav-search:focus-within{
  background:#fff;
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(26,95,208,.12);
}
.nav-login{font-size:14px;color:var(--c-ink2);white-space:nowrap}
.nav-login:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  color:var(--c-ink);
  font-size:18px;
  border-radius:var(--r-s);
}
.nav-toggle:hover{background:var(--c-bg);color:var(--c-primary)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:all var(--t) var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:var(--c-accent-d);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.15)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-s)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:36px;padding:0 18px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{background:#EEF1F6;color:#A9B2C0;cursor:not-allowed;box-shadow:none;transform:none}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-primary);
  font-size:15px;
  font-weight:600;
}
.text-link i{font-size:13px;transition:transform var(--t) var(--ease)}
.text-link:hover i{transform:translateX(4px)}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(15,27,45,.4);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t) var(--ease),visibility var(--t);
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;
  top:0;right:0;
  width:280px;
  height:100%;
  background:#fff;
  z-index:90;
  transform:translateX(100%);
  transition:transform var(--t) var(--ease);
  padding:20px;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--c-ink2);border-radius:var(--r-s)}
.drawer-close:hover{background:var(--c-bg);color:var(--c-primary)}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:48px;
  font-size:15px;
  color:var(--c-ink2);
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:600}
.drawer-foot{margin-top:20px;display:flex;flex-direction:column;gap:12px}

/* ============ 页头横幅 ============ */
.page-banner{
  position:relative;
  background:var(--c-primary-s);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-banner::after{
  content:"";
  position:absolute;
  right:-60px;top:-40px;
  width:420px;height:320px;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  border-radius:var(--r-l);
  opacity:.35;
  mask-image:linear-gradient(90deg,transparent,#000 60%);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 60%);
  pointer-events:none;
}
.banner-inner{
  position:relative;
  z-index:2;
  padding:48px 0 44px;
  max-width:720px;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  line-height:22px;
  color:var(--c-ink3);
  margin-bottom:18px;
}
.crumb a{color:var(--c-primary)}
.crumb a:hover{text-decoration:underline}
.crumb .sep{color:var(--c-ink3)}
.crumb .now{color:var(--c-ink3)}
.banner-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 10px;
  border-radius:var(--r-pill);
  background:#fff;
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
  border:1px solid var(--c-line);
  margin-bottom:16px;
}
.page-banner h1{
  font-size:44px;
  line-height:54px;
  font-weight:700;
  letter-spacing:-.5px;
  margin-bottom:16px;
}
.page-banner h1 em{font-style:normal;color:var(--c-primary)}
.banner-desc{
  font-size:16px;
  line-height:28px;
  color:var(--c-ink2);
  max-width:620px;
  margin-bottom:24px;
}
.filter-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:34px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-ink2);
  transition:all var(--t) var(--ease);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff;box-shadow:var(--sh-1)}
.chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ============ 板块通用 ============ */
.section{padding:88px 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  position:relative;
  font-size:32px;
  line-height:44px;
  font-weight:700;
  padding-left:20px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:4px;height:28px;
  border-radius:2px;
  background:var(--c-primary);
}
.section-sub{
  margin-top:10px;
  padding-left:20px;
  font-size:15px;
  line-height:26px;
  color:var(--c-ink2);
  max-width:620px;
}

/* ============ 图墙 ============ */
.wall-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.wall-card{
  position:relative;
  display:block;
  border-radius:var(--r-m);
  overflow:hidden;
  background:#E7EEF9;
  box-shadow:var(--sh-2);
  border:1px solid var(--c-line);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.wall-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-s)}
.wall-media{position:relative;aspect-ratio:4/3;overflow:hidden}
.wall-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 400ms var(--ease);
}
.wall-card:hover .wall-media img{transform:scale(1.05)}
.wall-media::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:76px;
  background:linear-gradient(180deg,rgba(15,27,45,0),rgba(15,27,45,.78));
}
.wall-tag{
  position:absolute;
  left:12px;top:12px;
  height:22px;
  padding:0 8px;
  border-radius:6px;
  font-size:12px;
  line-height:22px;
  background:var(--c-primary-s);
  color:var(--c-primary);
  font-weight:600;
  z-index:2;
}
.wall-tag.is-accent{background:var(--c-accent-s);color:var(--c-accent)}
.wall-tag.is-gray{background:#EDF0F5;color:var(--c-ink2)}
.wall-title{
  position:absolute;
  left:14px;right:14px;bottom:14px;
  color:#fff;
  font-size:16px;
  font-weight:600;
  line-height:24px;
  z-index:2;
}
.wall-arrow{
  position:absolute;
  right:14px;bottom:14px;
  width:34px;height:34px;
  border-radius:50%;
  background:#fff;
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  opacity:0;
  transform:translateY(6px);
  transition:all var(--t) var(--ease);
  z-index:3;
}
.wall-card:hover .wall-arrow{opacity:1;transform:translateY(0)}

/* ============ 深色数据带 ============ */
.stat-band{
  background:var(--c-ink);
  border-radius:var(--r-l);
  padding:36px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  color:#fff;
  box-shadow:var(--sh-2);
}
.stat-item{border-left:1px solid rgba(255,255,255,.12);padding-left:20px}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{
  font-size:34px;
  line-height:42px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:#7FB0FF;
  letter-spacing:-.5px;
}
.stat-num small{font-size:16px;font-weight:600;margin-left:2px;color:#fff}
.stat-label{font-size:14px;line-height:24px;color:rgba(255,255,255,.72);margin-top:6px}

/* ============ 时间线 ============ */
.timeline{
  position:relative;
  padding-left:28px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:5px;top:10px;bottom:10px;
  width:2px;
  background:var(--c-primary);
  opacity:.35;
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:-28px;top:10px;
  width:12px;height:12px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--c-primary);
}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:all var(--t) var(--ease);
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary-s)}
.tl-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-date{
  font-size:13px;
  line-height:22px;
  color:var(--c-ink3);
  font-variant-numeric:tabular-nums;
}
.tl-card h3{font-size:18px;line-height:28px;font-weight:600;margin-bottom:8px}
.tl-card p{font-size:14px;line-height:25px;color:var(--c-ink2);max-width:760px}
.tl-meta{
  display:flex;
  gap:18px;
  flex-wrap:wrap;
  margin-top:12px;
  font-size:13px;
  color:var(--c-ink3);
}
.tl-meta i{color:var(--c-primary);margin-right:5px;font-size:12px}
.badge{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 8px;
  border-radius:6px;
  font-size:12px;
  line-height:22px;
  font-weight:600;
  background:var(--c-primary-s);
  color:var(--c-primary);
}
.badge.is-accent{background:var(--c-accent-s);color:var(--c-accent)}
.badge.is-gray{background:#EDF0F5;color:var(--c-ink2)}
.badge.is-success{background:#E7F7EF;color:var(--c-success)}

/* ============ 提醒订阅条卡 ============ */
.notice-card{
  display:flex;
  align-items:center;
  gap:20px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  padding:20px 24px;
  box-shadow:var(--sh-1);
  margin-bottom:20px;
}
.notice-icon{
  flex:none;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--c-primary-s);
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
}
.notice-body h3{font-size:16px;line-height:26px;font-weight:600;margin-bottom:2px}
.notice-body p{font-size:14px;line-height:24px;color:var(--c-ink2)}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:360px 1fr;
  gap:48px;
  align-items:start;
}
.faq-side h2{
  position:relative;
  font-size:32px;
  line-height:44px;
  font-weight:700;
  padding-left:20px;
  margin-bottom:16px;
}
.faq-side h2::before{
  content:"";
  position:absolute;left:0;top:8px;
  width:4px;height:28px;border-radius:2px;background:var(--c-primary);
}
.faq-side p{font-size:15px;line-height:26px;color:var(--c-ink2)}
.faq-side .btn{margin-top:22px}
.faq-list{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-2);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:14px 24px;
  font-size:16px;
  font-weight:600;
  text-align:left;
  color:var(--c-ink);
  transition:background var(--t) var(--ease),color var(--t) var(--ease);
}
.faq-q:hover{background:var(--c-bg);color:var(--c-primary)}
.faq-q .ico{
  flex:none;
  width:20px;height:20px;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);
  font-size:16px;
  transition:transform var(--t) var(--ease),color var(--t) var(--ease);
}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg);color:var(--c-accent)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 320ms var(--ease);
}
.faq-a-inner{
  padding:0 24px 20px 24px;
  font-size:15px;
  line-height:28px;
  color:var(--c-ink2);
  border-left:3px solid var(--c-accent);
  margin-left:24px;
  padding-left:16px;
}
.faq-item.is-open .faq-a{max-height:340px}

/* ============ CTA ============ */
.cta-banner{
  background:var(--c-surface);
  border:1px solid var(--c-primary);
  border-left:6px solid var(--c-primary);
  border-radius:var(--r-l);
  box-shadow:var(--sh-2);
  padding:40px;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:40px;
  align-items:center;
}
.cta-left h2{font-size:30px;line-height:42px;font-weight:700;margin-bottom:14px}
.cta-left p{font-size:15px;line-height:28px;color:var(--c-ink2);max-width:520px;margin-bottom:20px}
.cta-points{display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;line-height:26px;color:var(--c-ink2)}
.cta-points i{color:var(--c-success);margin-top:6px;font-size:13px}
.form-card{
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  padding:26px;
  box-shadow:var(--sh-2);
}
.form-card h3{font-size:17px;line-height:26px;font-weight:600;margin-bottom:4px}
.form-card .form-tip{font-size:13px;line-height:22px;color:var(--c-ink3);margin-bottom:18px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink2);margin-bottom:8px}
.field input,.field select{
  width:100%;
  height:48px;
  padding:0 16px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:10px;
  font-size:14px;
  outline:none;
  transition:all var(--t) var(--ease);
  appearance:none;
}
.field input::placeholder{color:#A9B2C0}
.field input:focus,.field select:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(26,95,208,.12);
}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:22px;color:var(--c-ink3);margin-top:14px}
.check-row input{width:16px;height:16px;margin-top:3px;flex:none;accent-color:var(--c-primary)}
.form-hint{font-size:12px;color:var(--c-ink3);margin-top:10px;line-height:20px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-bg);
  border-top:1px solid var(--c-line);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.f-brand .brand{margin-bottom:16px}
.f-brand p{font-size:14px;line-height:25px;color:var(--c-ink2);max-width:320px}
.f-social{display:flex;gap:12px;margin-top:18px}
.f-social a{
  width:36px;height:36px;
  border-radius:10px;
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-ink2);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
  transition:all var(--t) var(--ease);
}
.f-social a:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-s)}
.f-col h3{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--c-ink)}
.f-col ul li{margin-bottom:2px}
.f-col ul li a,.f-col ul li span{
  display:inline-block;
  font-size:14px;
  line-height:32px;
  color:var(--c-ink2);
  transition:all var(--t) var(--ease);
}
.f-col ul li a:hover{color:var(--c-primary);transform:translateX(-2px)}
.footer-bottom{
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;line-height:22px;color:var(--c-ink3)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .wall-grid{grid-template-columns:repeat(3,1fr)}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:1024px){
  .nav-search{display:none}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-banner{grid-template-columns:1fr;gap:32px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:992px){
  .nav-links{display:none}
  .nav-login{display:none}
  .nav-toggle{display:inline-flex}
  .wall-grid{grid-template-columns:repeat(2,1fr)}
  .page-banner::after{opacity:.22;width:320px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .countdown-text{font-size:13px;max-width:40vw}
  .cd-cell{width:40px;height:28px}
  .cd-cell b{font-size:15px}
  .countdown-btn{padding:0 12px;font-size:12px}
  .page-banner h1{font-size:28px;line-height:38px}
  .banner-inner{padding:36px 0 32px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head h2,.faq-side h2{font-size:22px;line-height:32px}
  .section-head h2::before,.faq-side h2::before{top:6px;height:20px}
  .wall-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .stat-band{grid-template-columns:1fr;padding:26px}
  .stat-item{border-left:0;border-top:1px solid rgba(255,255,255,.12);padding-left:0;padding-top:18px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .timeline{padding-left:22px}
  .tl-item::before{left:-22px}
  .tl-card{padding:18px}
  .notice-card{flex-direction:column;align-items:flex-start}
  .cta-left h2{font-size:24px;line-height:34px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
  .btn{width:100%}
  .btn-inline{width:auto}
}
@media (max-width:560px){
  .page-banner h1{font-size:24px;line-height:34px}
  .wall-grid{grid-template-columns:1fr}
  .countdown-cells{gap:6px}
  .cd-cell{width:36px;height:26px}
  .form-card{padding:20px}
}

/* roulang page: article */
:root{
  --c-primary:#1A5FD0;
  --c-primary-d:#0F3F96;
  --c-primary-s:#E9F1FE;
  --c-accent:#FF6A2B;
  --c-accent-d:#E85B1E;
  --c-accent-s:#FFF1E8;
  --c-ink:#0F1B2D;
  --c-ink2:#4A5568;
  --c-ink3:#8B95A6;
  --c-line:#E5EAF3;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-success:#12A150;
  --c-warn:#E8A33D;
  --c-danger:#E5484D;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,45,.05);
  --sh-2:0 6px 20px rgba(15,27,45,.07);
  --sh-3:0 16px 40px rgba(15,27,45,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--c-accent);color:#fff;}
.btn-primary:hover{background:var(--c-accent-d);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.16);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-s);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--c-primary-d);}
.btn-light:hover{background:var(--c-primary-s);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-sm{height:36px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{background:#EEF1F6;color:#A9B2C0;border-color:#EEF1F6;cursor:not-allowed;transform:none;box-shadow:none;}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:14px;font-weight:600;}
.link-more i{transition:transform .2s var(--ease);font-size:12px;}
.link-more:hover i{transform:translateX(4px);}

/* ===== 标签 ===== */
.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:6px;
  font-size:12px;line-height:22px;background:#EEF1F6;color:var(--c-ink2);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.tag-primary{background:var(--c-primary-s);color:var(--c-primary);}
.tag-accent{background:var(--c-accent-s);color:var(--c-accent);}
a.tag:hover{background:var(--c-primary);color:#fff;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;background:var(--c-primary-s);color:var(--c-primary-d);
}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:90;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-size:14px;
  transition:transform .2s var(--ease),background-color .2s var(--ease);
}
.brand:hover .brand-mark{transform:rotate(-8deg);background:var(--c-primary-d);}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.3px;color:var(--c-ink);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink2);
  padding:21px 0;white-space:nowrap;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:14px;width:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:translateX(-50%);transition:width .2s var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{width:20px;}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{width:20px;}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:16px;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:200px;height:36px;padding:0 14px;
  background:var(--c-bg);border:1px solid transparent;border-radius:var(--r-pill);
  transition:background-color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search i{color:var(--c-ink3);font-size:13px;}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;}
.nav-search:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,95,208,.12);}
.nav-login{font-size:15px;color:var(--c-ink2);transition:color .2s var(--ease);}
.nav-login:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;color:var(--c-ink);cursor:pointer;place-items:center;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.nav-drawer-actions,.drawer-search{display:none;}
.nav-mask{
  position:fixed;inset:0;background:rgba(15,27,45,.4);opacity:0;pointer-events:none;
  transition:opacity .25s var(--ease);z-index:95;
}
.nav-mask.is-on{opacity:1;pointer-events:auto;}

/* ===== 面包屑 ===== */
.crumb-wrap{padding:22px 0 0;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink3);flex-wrap:wrap;}
.breadcrumb a{color:var(--c-primary);transition:opacity .2s var(--ease);}
.breadcrumb a:hover{opacity:.75;}
.breadcrumb .sep{color:#C6CFDD;}
.breadcrumb .crumb-current{max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--c-ink3);}

/* ===== 文章头区 ===== */
.article-hero{
  background:var(--c-primary-s);
  border-bottom:1px solid var(--c-line);
  padding:26px 0 46px;
  position:relative;
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:rgba(26,95,208,.08);
}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:40px;align-items:center;}
.hero-main .badge{margin-bottom:16px;}
.hero-main h1{
  font-size:clamp(26px,3.2vw,36px);line-height:1.34;font-weight:700;letter-spacing:-.4px;
  color:var(--c-ink);max-width:760px;
}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:18px;margin-top:20px;font-size:13px;color:var(--c-ink3);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item i{color:var(--c-primary);font-size:12px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;height:250px;object-fit:cover;border-radius:var(--r-l);box-shadow:var(--sh-3);
  background:var(--c-surface);
}
.hero-media figcaption{
  margin-top:12px;font-size:13px;color:var(--c-ink2);text-align:center;
}

/* ===== 正文布局 ===== */
.article-body{padding:56px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start;}
.article-main{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:var(--sh-2);padding:44px 48px;
}
.article-content{max-width:760px;font-size:17px;line-height:32px;color:#28313F;}
.article-content *{max-width:100%;}
.article-content p{margin:0 0 20px;}
.article-content h2{
  font-size:26px;line-height:38px;font-weight:700;color:var(--c-ink);
  margin:42px 0 18px;padding-left:16px;border-left:4px solid var(--c-primary);
}
.article-content h3{font-size:20px;line-height:30px;font-weight:600;color:var(--c-ink);margin:32px 0 14px;}
.article-content h4{font-size:17px;line-height:28px;font-weight:600;color:var(--c-ink);margin:24px 0 12px;}
.article-content ul,.article-content ol{margin:0 0 20px;padding-left:24px;}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:8px;}
.article-content li::marker{color:var(--c-primary);font-weight:600;}
.article-content blockquote{
  margin:24px 0;padding:16px 22px;background:#F7F9FD;
  border-left:4px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--c-ink2);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:12px;margin:26px auto;box-shadow:var(--sh-2);}
.article-content a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{text-decoration-thickness:2px;}
.article-content code{background:#F1F4F9;border-radius:4px;padding:2px 6px;font-size:15px;}
.article-content pre{background:#0F1B2D;color:#E6EDF7;padding:18px 20px;border-radius:12px;overflow:auto;margin:0 0 22px;}
.article-content pre code{background:transparent;color:inherit;padding:0;}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;border:1px solid var(--c-line);border-radius:12px;overflow:hidden;}
.article-content th{background:var(--c-primary-s);color:var(--c-primary-d);font-weight:600;}
.article-content th,.article-content td{padding:12px 16px;border-bottom:1px solid var(--c-line);text-align:left;font-size:15px;}
.article-content tr:last-child td{border-bottom:0;}
.article-content tr:nth-child(even) td{background:#FAFBFE;}

/* ===== 空态 ===== */
.empty-state{
  min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;gap:12px;padding:40px 20px;
}
.empty-state i{font-size:40px;color:var(--c-primary);}
.empty-state h2{font-size:22px;font-weight:700;color:var(--c-ink);}
.empty-state p{font-size:15px;line-height:28px;color:var(--c-ink2);max-width:460px;}

/* ===== 文末区 ===== */
.article-foot{margin-top:40px;padding-top:28px;border-top:1px solid var(--c-line);max-width:760px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-row .tag{height:26px;line-height:26px;padding:0 12px;border-radius:8px;font-size:13px;}
.foot-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:26px;flex-wrap:wrap;}

/* ===== 侧栏 ===== */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  box-shadow:var(--sh-2);padding:22px;
}
.side-title{font-size:16px;font-weight:600;color:var(--c-ink);margin-bottom:14px;}
.toc-list{display:flex;flex-direction:column;}
.toc-link{
  display:block;font-size:14px;line-height:24px;color:var(--c-ink2);padding:7px 0 7px 12px;
  border-left:2px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.toc-link.is-sub{padding-left:24px;font-size:13px;color:var(--c-ink3);}
.toc-link:hover{color:var(--c-primary);}
.toc-link.is-active{color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary);background:var(--c-primary-s);}
.side-list{display:flex;flex-direction:column;}
.side-item{border-bottom:1px solid var(--c-line);}
.side-item:last-child{border-bottom:0;}
.side-item a{display:flex;gap:12px;align-items:center;padding:12px 0;transition:background-color .2s var(--ease);}
.side-item img{width:72px;height:72px;object-fit:cover;border-radius:10px;flex:0 0 72px;background:var(--c-primary-s);}
.side-item-text{display:flex;flex-direction:column;gap:2px;min-width:0;}
.side-item-text strong{font-size:15px;font-weight:600;color:var(--c-ink);transition:color .2s var(--ease);}
.side-item-text em{font-style:normal;font-size:13px;line-height:22px;color:var(--c-ink3);}
.side-item a:hover .side-item-text strong{color:var(--c-primary);}
.side-cta{background:var(--c-primary-s);border-color:#CFE0FB;}
.side-cta h3{font-size:16px;font-weight:700;color:var(--c-primary-d);margin-bottom:8px;}
.side-cta p{font-size:14px;line-height:24px;color:var(--c-ink2);margin-bottom:16px;}

/* ===== 相关推荐 ===== */
.related-section{padding:0 0 72px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:700;color:var(--c-ink);
  padding-left:18px;border-left:4px solid var(--c-primary);
}
.section-head p{font-size:14px;color:var(--c-ink3);}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rec-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-m);box-shadow:var(--sh-2);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#CFE0FB;}
.rec-thumb{overflow:hidden;height:170px;}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.rec-card:hover .rec-thumb img{transform:scale(1.05);}
.rec-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-body h3{font-size:17px;line-height:27px;font-weight:600;color:var(--c-ink);transition:color .2s var(--ease);}
.rec-card:hover .rec-body h3{color:var(--c-primary);}
.rec-body p{font-size:14px;line-height:24px;color:var(--c-ink2);}
.rec-body .link-more{margin-top:auto;}

/* ===== 底部 CTA ===== */
.cta-section{padding:0 0 80px;}
.cta-banner{
  background:var(--c-primary-d);border-radius:var(--r-l);padding:44px 48px;
  display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:40px;align-items:center;
  box-shadow:var(--sh-3);position:relative;overflow:hidden;
}
.cta-banner::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.06);
}
.cta-copy{position:relative;z-index:1;}
.cta-copy .badge{background:rgba(255,255,255,.16);color:#fff;margin-bottom:16px;}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);line-height:1.42;font-weight:700;color:#fff;}
.cta-copy p{margin-top:14px;font-size:15px;line-height:28px;color:rgba(255,255,255,.82);max-width:520px;}
.cta-points{display:flex;flex-wrap:wrap;gap:18px;margin-top:20px;}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.9);}
.cta-points i{color:var(--c-accent);}
.cta-form{
  position:relative;z-index:1;background:#fff;border-radius:var(--r-l);padding:24px;box-shadow:var(--sh-2);
  display:flex;flex-direction:column;gap:12px;
}
.cta-form label{font-size:14px;font-weight:600;color:var(--c-ink);}
.field-input{
  width:100%;height:48px;padding:0 16px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;font-size:15px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field-input::placeholder{color:#A9B2C0;}
.field-input:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,95,208,.12);}
.cta-form .hint{font-size:12px;line-height:20px;color:var(--c-ink3);}

/* ===== 页脚 ===== */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:56px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px;}
.f-brand .brand{margin-bottom:16px;}
.f-brand p{font-size:14px;line-height:26px;color:var(--c-ink2);max-width:340px;margin-bottom:18px;}
.f-social{display:flex;gap:10px;}
.f-social a{
  width:36px;height:36px;border-radius:10px;background:var(--c-bg);border:1px solid var(--c-line);
  display:grid;place-items:center;color:var(--c-ink2);
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.f-social a:hover{background:var(--c-primary-s);color:var(--c-primary);border-color:var(--c-primary);}
.f-col h3{font-size:15px;font-weight:600;color:var(--c-ink);margin-bottom:14px;}
.f-col li{margin-bottom:2px;}
.f-col a,.f-col span{display:inline-block;font-size:14px;line-height:32px;color:var(--c-ink2);transition:color .2s var(--ease),transform .2s var(--ease);}
.f-col a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--c-ink3);}

/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--c-line);box-shadow:var(--sh-2);color:var(--c-primary);
  display:grid;place-items:center;cursor:pointer;opacity:0;pointer-events:none;
  transition:opacity .25s var(--ease),transform .25s var(--ease);z-index:70;
}
.to-top.is-on{opacity:1;pointer-events:auto;}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .hero-grid{grid-template-columns:minmax(0,1fr) 320px;gap:32px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:24px;}
}
@media (max-width:1024px){
  .nav-search{display:none;}
  .nav-links{gap:24px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-media{display:none;}
  .article-layout{grid-template-columns:1fr;}
  .article-side{position:static;}
  .cta-banner{grid-template-columns:1fr;padding:36px 32px;}
  .rec-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .nav-inner{height:56px;gap:12px;}
  .brand-text{font-size:16px;}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:280px;margin:0;padding:76px 20px 24px;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    transform:translateX(100%);transition:transform .25s var(--ease);
    box-shadow:var(--sh-3);z-index:100;overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{height:48px;padding:0;display:flex;align-items:center;font-size:16px;border-bottom:1px solid var(--c-line);}
  .nav-link::after{display:none;}
  .nav-login{display:none;}
  .nav-tools{gap:10px;}
  .nav-tools > .btn-primary{display:none;}
  .nav-toggle{display:grid;}
  .drawer-search{
    display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;margin-bottom:12px;
    background:var(--c-bg);border-radius:var(--r-pill);
  }
  .drawer-search i{color:var(--c-ink3);font-size:13px;}
  .drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;}
  .nav-drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:22px;}
  .article-hero{padding:20px 0 36px;}
  .article-body{padding:40px 0 56px;}
  .article-main{padding:26px 20px;border-radius:var(--r-m);}
  .article-content{font-size:16px;line-height:30px;}
  .article-content h2{font-size:22px;line-height:32px;margin:32px 0 14px;}
  .article-content h3{font-size:18px;line-height:28px;}
  .rec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .f-brand{grid-column:1 / -1;}
  .cta-banner{padding:28px 22px;border-radius:var(--r-m);}
  .related-section{padding-bottom:56px;}
  .cta-section{padding-bottom:56px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:560px){
  .brand-text{font-size:15px;}
  .breadcrumb .crumb-current{max-width:180px;}
  .meta-row{gap:12px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .rec-thumb{height:150px;}
  .article-content table{display:block;overflow-x:auto;}
  .foot-actions .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1A5FD0;
  --c-primary-d:#0F3F96;
  --c-primary-s:#E9F1FE;
  --c-accent:#FF6A2B;
  --c-accent-d:#E85B1E;
  --c-accent-s:#FFF1E8;
  --c-ink:#0F1B2D;
  --c-ink2:#4A5568;
  --c-ink3:#8B95A6;
  --c-line:#E5EAF3;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-success:#12A150;
  --c-warn:#E8A33D;
  --c-danger:#E5484D;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,45,.05);
  --sh-2:0 6px 20px rgba(15,27,45,.07);
  --sh-3:0 16px 40px rgba(15,27,45,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --tr:200ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:28px;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr);}
a:hover{color:var(--c-primary-d);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;cursor:pointer;}
input,button,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--tr);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;gap:32px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;
  transition:transform var(--tr),background var(--tr);
}
.brand:hover .brand-mark{transform:rotate(8deg);background:var(--c-primary-d);}
.brand-text{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;white-space:nowrap;}
.brand:hover .brand-text{color:var(--c-ink);}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink2);
  padding:20px 0;transition:color var(--tr);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:12px;
  width:0;height:2px;background:var(--c-primary);
  border-radius:2px;transform:translateX(-50%);
  transition:width var(--tr);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{width:20px;}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{width:20px;}
.nav-tools{display:flex;align-items:center;gap:16px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:200px;height:36px;padding:0 14px;
  background:var(--c-bg);border:1px solid transparent;border-radius:var(--r-pill);
  transition:background var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.nav-search i{color:var(--c-ink3);font-size:13px;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--c-ink);
}
.nav-search input::placeholder{color:#A9B2C0;}
.nav-search:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,95,208,.12);}
.nav-login{font-size:14px;font-weight:500;color:var(--c-ink2);white-space:nowrap;}
.nav-login:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);
  background:#fff;border-radius:10px;color:var(--c-ink);
  align-items:center;justify-content:center;font-size:16px;
  transition:border-color var(--tr),color var(--tr);
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background var(--tr),color var(--tr),border-color var(--tr),box-shadow var(--tr),transform var(--tr);
}
.btn-primary{background:var(--c-accent);color:#fff;}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(15,27,45,.18);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-s);}
.btn-ghost:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(15,27,45,.08);}
.btn-sm{height:36px;padding:0 18px;font-size:14px;border-radius:var(--r-pill);}
.btn-block{width:100%;}
.btn:disabled{background:#EEF1F6;color:#A9B2C0;border-color:#EEF1F6;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.link-arrow i{font-size:12px;transition:transform var(--tr);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ page hero ============ */
.page-hero{
  background:linear-gradient(90deg,#E9F1FE 0%,#F5F8FD 62%);
  border-bottom:1px solid var(--c-line);
  padding:48px 0 44px;
  position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-60px;top:-40px;
  width:340px;height:340px;border-radius:50%;
  background:rgba(26,95,208,.06);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:center;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink3);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a{color:var(--c-primary);}
.breadcrumb span.sep{color:var(--c-ink3);}
.breadcrumb .current{color:var(--c-ink3);}
.page-hero h1{font-size:40px;line-height:52px;font-weight:700;letter-spacing:-.5px;margin-bottom:14px;}
.page-hero h1 em{font-style:normal;color:var(--c-primary);}
.page-hero .lead{font-size:16px;line-height:28px;color:var(--c-ink2);max-width:620px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);
  font-size:13px;color:var(--c-ink2);
  transition:border-color var(--tr),color var(--tr),background var(--tr);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-s);}
.chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.chip.is-on:hover{background:var(--c-primary-d);color:#fff;}
.hero-visual{
  border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-3);
  background:var(--c-primary-s);aspect-ratio:4/3;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}

/* ============ sections ============ */
.section{padding:72px 0;}
.section-sm{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-title{
  position:relative;padding-left:20px;
  font-size:30px;line-height:42px;font-weight:700;letter-spacing:-.3px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:24px;border-radius:3px;background:var(--c-primary);
}
.section-sub{font-size:15px;color:var(--c-ink2);margin-top:10px;padding-left:20px;max-width:680px;}

/* 卖点条卡 */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.point{
  display:flex;gap:14px;padding:22px;
  background:var(--c-surface);border-radius:var(--r-m);
  transition:background var(--tr),transform var(--tr),box-shadow var(--tr);
}
.point:hover{background:#F5F8FD;transform:translateY(-4px);box-shadow:var(--sh-2);}
.point-ico{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  background:var(--c-primary-s);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;
}
.point h3{font-size:16px;line-height:24px;font-weight:600;margin-bottom:6px;}
.point p{font-size:14px;line-height:24px;color:var(--c-ink2);}

/* doc layout */
.doc-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--sh-2);}
.doc-layout{display:grid;grid-template-columns:240px 1fr;gap:48px;padding:44px;}
.doc-aside{position:relative;}
.toc{position:sticky;top:88px;}
.toc h2{font-size:14px;font-weight:600;color:var(--c-ink3);letter-spacing:.5px;margin-bottom:14px;}
.toc ol{counter-reset:toc;}
.toc li{margin-bottom:4px;}
.toc a{
  display:block;padding:9px 14px;font-size:14px;line-height:22px;color:var(--c-ink2);
  border-left:2px solid transparent;border-radius:0 var(--r-s) var(--r-s) 0;
  transition:all var(--tr);
}
.toc a:hover{color:var(--c-primary);background:var(--c-bg);}
.toc a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-s);border-left-color:var(--c-primary);}
.toc-card{
  margin-top:22px;padding:18px;border-radius:var(--r-m);
  background:var(--c-bg);border:1px solid var(--c-line);
}
.toc-card p{font-size:13px;line-height:22px;color:var(--c-ink2);margin-bottom:12px;}

.doc-body{max-width:760px;}
.doc-body section{scroll-margin-top:96px;}
.doc-body h2{
  position:relative;padding-left:18px;
  font-size:26px;line-height:38px;font-weight:700;letter-spacing:-.3px;
  margin:52px 0 18px;
}
.doc-body section:first-child h2{margin-top:0;}
.doc-body h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:22px;border-radius:3px;background:var(--c-primary);
}
.doc-body h3{font-size:19px;line-height:30px;font-weight:600;margin:28px 0 12px;}
.doc-body p{font-size:17px;line-height:32px;color:var(--c-ink2);margin-bottom:18px;}
.doc-body strong{color:var(--c-ink);font-weight:600;}
.doc-list{margin:0 0 20px 4px;}
.doc-list li{
  position:relative;padding-left:20px;margin-bottom:10px;
  font-size:16px;line-height:28px;color:var(--c-ink2);
}
.doc-list li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}
.tip{
  display:flex;gap:14px;padding:18px 20px;margin:22px 0;
  background:var(--c-primary-s);border-left:4px solid var(--c-primary);border-radius:0 var(--r-m) var(--r-m) 0;
}
.tip i{color:var(--c-primary);font-size:16px;margin-top:5px;}
.tip p{margin:0;font-size:15px;line-height:26px;color:var(--c-ink2);}
.warn-box{
  display:flex;gap:14px;padding:18px 20px;margin:22px 0;
  background:var(--c-accent-s);border-left:4px solid var(--c-accent);border-radius:0 var(--r-m) var(--r-m) 0;
}
.warn-box i{color:var(--c-accent);font-size:16px;margin-top:5px;}
.warn-box p{margin:0;font-size:15px;line-height:26px;color:var(--c-ink2);}
.doc-figure{margin:26px 0;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--c-line);}
.doc-figure img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;}
.doc-figure figcaption{font-size:13px;line-height:22px;color:var(--c-ink3);text-align:center;padding:10px 12px;background:var(--c-bg);}

/* table */
.table-wrap{overflow:hidden;border:1px solid var(--c-line);border-radius:12px;margin:22px 0;}
table{width:100%;border-collapse:collapse;}
th{
  background:var(--c-primary-s);color:var(--c-primary);
  font-size:14px;font-weight:600;text-align:left;padding:14px 16px;white-space:nowrap;
}
td{
  font-size:15px;line-height:24px;color:var(--c-ink2);
  padding:12px 16px;border-top:1px solid var(--c-line);height:48px;
}
tbody tr:nth-child(even){background:#FAFBFE;}
td strong{color:var(--c-ink);}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:24px 22px;box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-s);}
.step-no{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary-s);color:var(--c-primary);
  font-size:15px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.step.is-first .step-no{background:var(--c-primary);color:#fff;}
.step h3{font-size:16px;line-height:24px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;line-height:24px;color:var(--c-ink2);}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.scene{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  overflow:hidden;box-shadow:var(--sh-2);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.scene:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-s);}
.scene-img{aspect-ratio:4/3;overflow:hidden;background:var(--c-primary-s);}
.scene-img img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.scene:hover .scene-img img{transform:scale(1.05);}
.scene-body{padding:20px 22px 24px;}
.scene-body .tag{
  display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:6px;
  background:var(--c-primary-s);color:var(--c-primary);font-size:12px;font-weight:600;margin-bottom:12px;
}
.scene-body h3{font-size:17px;line-height:26px;font-weight:600;margin-bottom:8px;}
.scene-body p{font-size:14px;line-height:24px;color:var(--c-ink2);margin-bottom:14px;}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.faq-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--sh-2);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 24px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;line-height:26px;color:var(--c-ink);
  transition:color var(--tr),background var(--tr);
}
.faq-q:hover{color:var(--c-primary);background:#FAFBFE;}
.faq-q i{flex:0 0 auto;color:var(--c-primary);font-size:14px;transition:transform var(--tr),color var(--tr);}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--c-accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms var(--ease);}
.faq-a-inner{
  position:relative;padding:0 24px 20px 24px;
  font-size:15px;line-height:28px;color:var(--c-ink2);
}
.faq-item.is-open .faq-a-inner::before{
  content:"";position:absolute;left:24px;top:2px;bottom:22px;width:3px;
  border-radius:3px;background:var(--c-accent);opacity:.85;
}
.faq-item.is-open .faq-a-inner{padding-left:38px;}

/* CTA */
.cta-banner{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-primary-s);
  border-left:6px solid var(--c-primary);
  border-radius:var(--r-l);
  box-shadow:var(--sh-2);
  padding:44px 48px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.cta-banner h2{font-size:28px;line-height:40px;font-weight:700;margin-bottom:12px;letter-spacing:-.3px;}
.cta-banner .cta-lead{font-size:15px;line-height:28px;color:var(--c-ink2);margin-bottom:20px;max-width:520px;}
.check-list li{display:flex;gap:10px;font-size:15px;line-height:26px;color:var(--c-ink2);margin-bottom:10px;}
.check-list i{color:var(--c-success);font-size:15px;margin-top:5px;}
.form-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:var(--sh-2);padding:28px;
}
.form-card h3{font-size:18px;line-height:28px;font-weight:600;margin-bottom:6px;}
.form-card .form-note{font-size:13px;line-height:22px;color:var(--c-ink3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink2);margin-bottom:8px;}
.field input{
  width:100%;height:48px;padding:0 16px;border:1px solid var(--c-line);
  border-radius:10px;background:#fff;color:var(--c-ink);outline:none;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.field input::placeholder{color:#A9B2C0;}
.field input:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,95,208,.12);}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:12px;line-height:20px;color:var(--c-ink3);margin:4px 0 18px;}
.agree input{width:16px;height:16px;margin-top:2px;accent-color:var(--c-primary);}

/* footer */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:56px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:40px;}
.f-brand p{font-size:14px;line-height:26px;color:var(--c-ink2);margin:16px 0 18px;max-width:340px;}
.f-social{display:flex;gap:10px;}
.f-social a{
  width:36px;height:36px;border-radius:10px;background:#fff;border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-ink2);font-size:14px;
  transition:all var(--tr);
}
.f-social a:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-2px);}
.f-col h3{font-size:15px;font-weight:600;color:var(--c-ink);margin-bottom:16px;}
.f-col li{margin-bottom:2px;}
.f-col a,.f-col span{display:inline-block;font-size:14px;line-height:32px;color:var(--c-ink2);transition:color var(--tr),transform var(--tr);}
.f-col a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;line-height:22px;color:var(--c-ink3);}

/* back to top */
.to-top{
  position:fixed;right:28px;bottom:28px;z-index:150;
  width:48px;height:48px;border-radius:50%;border:1px solid var(--c-line);
  background:#fff;color:var(--c-primary);box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--tr);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,27,45,.4);z-index:190;
  opacity:0;visibility:hidden;transition:all var(--tr);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;background:#fff;z-index:200;
  border-left:1px solid var(--c-line);padding:20px 20px 28px;
  transform:translateX(100%);transition:transform 260ms var(--ease);
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head .brand-text{font-size:16px;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:10px;
  color:var(--c-ink2);display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer nav a{
  display:flex;align-items:center;height:48px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--c-ink2);font-weight:500;
}
.drawer nav a:hover,.drawer nav a.is-active{background:var(--c-primary-s);color:var(--c-primary);}
.drawer-foot{margin-top:auto;display:grid;gap:12px;}

/* responsive */
@media (max-width:1200px){
  .nav-links{gap:22px;}
  .nav-search{width:160px;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-login{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-visual{aspect-ratio:16/9;max-width:640px;}
  .doc-layout{grid-template-columns:1fr;gap:32px;padding:32px;}
  .toc{position:static;}
  .toc ol{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;}
  .doc-body{max-width:none;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .cta-banner{grid-template-columns:1fr;gap:32px;padding:36px 32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-sm{padding:40px 0;}
  .page-hero{padding:32px 0 32px;}
  .page-hero h1{font-size:28px;line-height:38px;}
  .section-title{font-size:22px;line-height:32px;}
  .point-grid,.scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .doc-body h2{font-size:22px;line-height:32px;margin-top:40px;}
  .doc-body p{font-size:16px;line-height:30px;}
  .cta-banner{padding:28px 22px;}
  .cta-banner h2{font-size:22px;line-height:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-bottom{flex-direction:column;text-align:center;}
  .to-top{right:16px;bottom:16px;}
  /* table -> cards */
  .table-wrap{border:0;border-radius:0;}
  thead{display:none;}
  tbody tr{
    display:block;background:#fff !important;border:1px solid var(--c-line);
    border-radius:var(--r-m);padding:8px 4px;margin-bottom:14px;
  }
  td{
    display:flex;gap:12px;height:auto;border-top:0;padding:8px 14px;
    font-size:14px;line-height:24px;
  }
  td::before{
    content:attr(data-label);flex:0 0 84px;color:var(--c-ink3);font-size:13px;font-weight:600;
  }
}
@media (max-width:560px){
  .steps{grid-template-columns:1fr;}
  .toc ol{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .nav-tools .btn-sm{display:none;}
  .page-hero h1{font-size:24px;line-height:34px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1A5FD0;
  --c-primary-d:#0F3F96;
  --c-primary-s:#E9F1FE;
  --c-accent:#FF6A2B;
  --c-accent-d:#E85B1E;
  --c-accent-s:#FFF1E8;
  --c-ink:#0F1B2D;
  --c-ink2:#4A5568;
  --c-ink3:#8B95A6;
  --c-line:#E5EAF3;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-success:#12A150;
  --c-warn:#E8A33D;
  --c-danger:#E5484D;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,45,.05);
  --sh-2:0 6px 20px rgba(15,27,45,.07);
  --sh-3:0 16px 40px rgba(15,27,45,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:28px;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;padding:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-alt{background:var(--c-bg);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-title{position:relative;padding-left:20px;font-size:32px;line-height:44px;font-weight:700;letter-spacing:-.3px;}
.section-title::before{content:"";position:absolute;left:0;top:6px;width:4px;height:32px;border-radius:2px;background:var(--c-primary);}
.section-desc{margin-top:10px;max-width:620px;color:var(--c-ink2);font-size:15px;line-height:26px;}
.section-more{flex:0 0 auto;font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px;}
.section-more i{transition:transform .2s var(--ease);}
.section-more:hover i{transform:translateX(4px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .2s var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 1px 2px rgba(255,106,43,.24);}
.btn-primary:hover{background:var(--c-accent-d);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 4px rgba(0,0,0,.14);}
.btn-ghost{background:var(--c-surface);color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-s);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-blue{background:var(--c-primary);color:#fff;}
.btn-blue:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-sm{height:36px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{background:#EEF1F6;color:#A9B2C0;border-color:#EEF1F6;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 标签 / 徽章 ---------- */
.tag{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:6px;font-size:12px;line-height:18px;background:var(--c-primary-s);color:var(--c-primary);font-weight:600;}
.tag-accent{background:var(--c-accent-s);color:var(--c-accent);}
.tag-grey{background:#EEF1F6;color:var(--c-ink3);}
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-primary-s);color:var(--c-primary);font-size:13px;font-weight:600;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .2s var(--ease);}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;height:64px;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;transition:transform .25s var(--ease);}
.brand:hover .brand-mark{transform:rotate(8deg);}
.brand-text{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:12px;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--c-ink2);padding:20px 0;line-height:24px;}
.nav-link::after{content:"";position:absolute;left:0;bottom:12px;width:0;height:2px;background:var(--c-primary);transition:width .2s var(--ease);}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{width:20px;}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{width:20px;}
.nav-tools{display:flex;align-items:center;gap:16px;margin-left:auto;}
.nav-search{display:flex;align-items:center;gap:8px;width:200px;height:36px;padding:0 14px;border-radius:var(--r-pill);background:var(--c-bg);border:1.5px solid transparent;transition:all .2s var(--ease);}
.nav-search i{color:var(--c-ink3);font-size:13px;}
.nav-search input{flex:1;min-width:0;border:0;background:transparent;font-size:14px;height:100%;}
.nav-search input::placeholder{color:#A9B2C0;}
.nav-search input:focus{outline:none;}
.nav-search:focus-within{background:var(--c-surface);border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,95,208,.14);}
.nav-login{font-size:15px;color:var(--c-ink2);font-weight:500;}
.nav-login:hover{color:var(--c-primary);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);color:var(--c-ink);font-size:17px;align-items:center;justify-content:center;}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(15,27,45,.4);opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:90;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;bottom:0;width:280px;background:var(--c-surface);z-index:100;transform:translateX(100%);transition:transform .3s var(--ease);padding:20px;display:flex;flex-direction:column;gap:6px;box-shadow:var(--sh-3);}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:48px;margin-bottom:8px;}
.drawer-head span{font-size:16px;font-weight:700;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);display:inline-flex;align-items:center;justify-content:center;}
.drawer a.d-item{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 14px;border-radius:10px;color:var(--c-ink2);font-size:15px;font-weight:500;}
.drawer a.d-item:hover{background:var(--c-bg);color:var(--c-primary);}
.drawer a.d-item.is-active{background:var(--c-primary-s);color:var(--c-primary);font-weight:600;}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}

/* ---------- 页头横幅 ---------- */
.page-head{position:relative;background:linear-gradient(180deg,#EDF3FE 0%,#F7FAFF 100%);border-bottom:1px solid var(--c-line);overflow:hidden;}
.page-head-inner{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:44px;align-items:center;padding:52px 24px 56px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;line-height:22px;color:var(--c-ink3);margin-bottom:16px;flex-wrap:wrap;}
.breadcrumb a{color:var(--c-primary);}
.breadcrumb a:hover{text-decoration:underline;}
.breadcrumb .sep{color:#C4CCD9;}
.breadcrumb .cur{color:var(--c-ink3);}
.page-head h1{font-size:40px;line-height:52px;font-weight:700;letter-spacing:-.5px;}
.page-head h1 em{font-style:normal;color:var(--c-primary);}
.page-head-sub{margin-top:16px;max-width:620px;color:var(--c-ink2);font-size:16px;line-height:28px;}
.ph-quick{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.ph-quick a{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:var(--r-pill);background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-ink2);font-size:14px;font-weight:500;}
.ph-quick a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-s);transform:translateY(-1px);}
.page-head-media{position:relative;border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-3);border:1px solid rgba(255,255,255,.6);}
.page-head-media img{width:100%;height:280px;object-fit:cover;}
.ph-stat{position:absolute;left:16px;bottom:16px;right:16px;background:rgba(255,255,255,.96);border-radius:var(--r-m);padding:14px 16px;display:flex;gap:24px;box-shadow:var(--sh-2);}
.ph-stat div{display:flex;flex-direction:column;}
.ph-stat strong{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--c-primary);}
.ph-stat span{font-size:12px;color:var(--c-ink3);line-height:20px;}

/* ---------- 入口卡 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.entry-card{position:relative;display:flex;flex-direction:column;min-height:290px;padding:28px;border-radius:var(--r-m);background:var(--c-surface);border:1px solid var(--c-line);box-shadow:var(--sh-2);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-s);}
.entry-icon{width:52px;height:52px;border-radius:14px;background:var(--c-primary-s);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:18px;}
.entry-card h3{font-size:20px;line-height:30px;font-weight:600;margin-bottom:12px;}
.entry-card ul{display:flex;flex-direction:column;gap:10px;margin-bottom:24px;}
.entry-card li{position:relative;padding-left:22px;color:var(--c-ink2);font-size:14px;line-height:24px;}
.entry-card li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:3px;background:var(--c-primary-s);border:1.5px solid var(--c-primary);}
.entry-card .btn{margin-top:auto;align-self:flex-start;}
.entry-card.is-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.entry-card.is-primary h3{color:#fff;}
.entry-card.is-primary .entry-icon{background:rgba(255,255,255,.16);color:#fff;}
.entry-card.is-primary li{color:rgba(255,255,255,.86);}
.entry-card.is-primary li::before{background:rgba(255,255,255,.2);border-color:#fff;}
.entry-card.is-primary .card-flag{position:absolute;right:20px;top:24px;font-size:12px;font-weight:600;color:#fff;background:rgba(255,255,255,.18);border-radius:var(--r-pill);padding:3px 10px;}

/* ---------- 步骤条 ---------- */
.steps{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);padding:36px 32px;box-shadow:var(--sh-1);}
.steps-line{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;position:relative;}
.step{position:relative;padding-right:18px;}
.step::after{content:"";position:absolute;right:0;top:19px;width:100%;height:2px;background:var(--c-line);z-index:0;}
.step:last-child::after{display:none;}
.step-dot{position:relative;z-index:1;width:38px;height:38px;border-radius:50%;background:var(--c-primary-s);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;border:2px solid var(--c-surface);}
.step.is-done .step-dot{background:var(--c-primary);color:#fff;}
.step h4{margin-top:14px;font-size:16px;font-weight:600;line-height:26px;}
.step p{margin-top:6px;font-size:14px;line-height:24px;color:var(--c-ink2);max-width:220px;}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.scene-card{display:flex;gap:14px;padding:20px;border-radius:var(--r-m);transition:background-color .2s var(--ease),transform .2s var(--ease);}
.scene-card:hover{background:var(--c-surface);transform:translateY(-3px);box-shadow:var(--sh-2);}
.scene-ico{flex:0 0 44px;width:44px;height:44px;border-radius:12px;background:var(--c-primary-s);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:17px;}
.scene-card h4{font-size:16px;font-weight:600;line-height:26px;}
.scene-card p{margin-top:6px;font-size:14px;line-height:24px;color:var(--c-ink2);}

/* ---------- 图墙 ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.g-card{position:relative;display:block;border-radius:var(--r-m);overflow:hidden;background:var(--c-surface);border:1px solid var(--c-line);box-shadow:var(--sh-2);}
.g-card img{width:100%;height:236px;object-fit:cover;transition:transform .35s var(--ease);}
.g-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,27,45,0) 40%,rgba(15,27,45,.72) 100%);}
.g-card:hover img{transform:scale(1.05);}
.g-card:hover{box-shadow:var(--sh-3);}
.g-cap{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:#fff;}
.g-cap strong{display:block;font-size:16px;font-weight:600;line-height:26px;}
.g-cap span{font-size:13px;color:rgba(255,255,255,.82);line-height:22px;}
.g-flag{position:absolute;left:16px;top:16px;z-index:2;height:22px;padding:0 8px;border-radius:6px;font-size:12px;font-weight:600;line-height:22px;background:var(--c-accent);color:#fff;}
.g-flag.blue{background:var(--c-primary);}

/* ---------- 提示条 ---------- */
.notice{display:flex;gap:16px;align-items:flex-start;padding:20px 22px;border-radius:var(--r-m);background:var(--c-accent-s);border:1px solid #FFD9C4;}
.notice i{color:var(--c-accent);font-size:18px;margin-top:4px;}
.notice h4{font-size:16px;font-weight:600;line-height:26px;}
.notice p{margin-top:6px;font-size:14px;line-height:24px;color:var(--c-ink2);}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);gap:48px;align-items:start;}
.faq-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:14px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);position:relative;transition:color .2s var(--ease);}
.faq-q:hover{color:var(--c-primary);}
.faq-q i{color:var(--c-primary);font-size:15px;transition:transform .25s var(--ease);}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-item.is-open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a-inner{position:relative;padding:0 22px 20px 22px;font-size:15px;line-height:28px;color:var(--c-ink2);}
.faq-item.is-open .faq-a-inner::before{content:"";position:absolute;left:0;top:2px;bottom:20px;width:3px;background:var(--c-accent);border-radius:0 2px 2px 0;}

/* ---------- CTA + 表单 ---------- */
.cta-banner{position:relative;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px;align-items:center;background:var(--c-surface);border:1px solid var(--c-primary-s);border-radius:var(--r-l);box-shadow:var(--sh-2);padding:44px;overflow:hidden;}
.cta-banner::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--c-primary);}
.cta-banner h2{font-size:28px;line-height:40px;font-weight:700;}
.cta-banner p.lead{margin-top:14px;max-width:560px;color:var(--c-ink2);font-size:15px;line-height:26px;}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.check-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-ink2);}
.check-list i{color:var(--c-success);font-size:14px;}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--sh-2);padding:26px;}
.form-card h3{font-size:18px;font-weight:600;margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--c-ink2);margin-bottom:8px;font-weight:500;}
.field input,.field select{width:100%;height:48px;padding:0 16px;border-radius:10px;border:1px solid var(--c-line);background:var(--c-surface);font-size:14px;transition:all .2s var(--ease);}
.field input::placeholder{color:#A9B2C0;}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,95,208,.14);}
.field.has-error input,.field.has-error select{border-color:var(--c-danger);}
.field .err{display:none;margin-top:6px;font-size:13px;color:var(--c-danger);line-height:22px;}
.field.has-error .err{display:block;}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:12px;line-height:20px;color:var(--c-ink3);margin:4px 0 18px;}
.agree input{width:16px;height:16px;margin-top:2px;accent-color:var(--c-primary);}
.form-tip{margin-top:12px;font-size:12px;line-height:20px;color:var(--c-ink3);text-align:center;}
.form-ok{display:none;margin-top:12px;font-size:13px;line-height:22px;color:var(--c-success);text-align:center;}
.form-ok.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:40px;}
.f-brand p{margin-top:16px;max-width:340px;font-size:14px;line-height:26px;color:var(--c-ink2);}
.f-social{display:flex;gap:10px;margin-top:18px;}
.f-social a{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink2);display:inline-flex;align-items:center;justify-content:center;font-size:14px;}
.f-social a:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-s);transform:translateY(-2px);}
.f-col h3{font-size:15px;font-weight:600;margin-bottom:14px;}
.f-col ul{display:flex;flex-direction:column;gap:4px;}
.f-col a,.f-col span{font-size:14px;line-height:32px;color:var(--c-ink2);display:inline-block;}
.f-col a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--c-line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--c-ink3);line-height:24px;}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .page-head h1{font-size:34px;line-height:46px;}
}
@media (max-width:1024px){
  .nav-search{width:44px;padding:0 0;justify-content:center;border-radius:var(--r-pill);}
  .nav-search input{display:none;}
  .page-head-inner{grid-template-columns:1fr;gap:28px;}
  .page-head-media img{height:240px;}
  .entry-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-banner{grid-template-columns:1fr;padding:32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .section-title{font-size:22px;line-height:32px;padding-left:16px;}
  .section-title::before{height:24px;top:4px;}
  .nav-links,.nav-search,.nav-login{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{height:56px;}
  .brand-text{font-size:16px;}
  .page-head-inner{padding:32px 16px 40px;}
  .page-head h1{font-size:26px;line-height:36px;}
  .page-head-sub{font-size:15px;line-height:26px;}
  .page-head-media img{height:200px;}
  .ph-stat{position:static;margin:0;border-radius:0;box-shadow:none;background:var(--c-bg);padding:14px 0 0;gap:20px;}
  .entry-card{padding:22px;min-height:auto;}
  .steps{padding:24px 20px;}
  .steps-line{grid-template-columns:1fr;gap:24px;}
  .step{padding-right:0;padding-left:52px;}
  .step::after{display:none;}
  .step-dot{position:absolute;left:0;top:0;}
  .step h4{margin-top:0;}
  .gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .g-card img{height:170px;}
  .cta-banner{padding:24px;}
  .cta-banner h2{font-size:22px;line-height:32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .footer-bottom{justify-content:center;text-align:center;}
}
@media (max-width:560px){
  body{font-size:15px;line-height:26px;}
  .section{padding:44px 0;}
  .scene-grid{grid-template-columns:1fr;}
  .gallery-grid{grid-template-columns:1fr;}
  .g-card img{height:200px;}
  .btn{padding:0 18px;}
  .btn-block-mobile{width:100%;}
  .form-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .f-col a:hover{transform:none;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1A5FD0;
  --c-primary-d:#0F3F96;
  --c-primary-s:#E9F1FE;
  --c-accent:#FF6A2B;
  --c-accent-s:#FFF1E8;
  --c-ink:#0F1B2D;
  --c-ink2:#4A5568;
  --c-ink3:#8B95A6;
  --c-line:#E5EAF3;
  --c-bg:#F5F8FD;
  --c-surface:#FFFFFF;
  --c-success:#12A150;
  --c-warn:#E8A33D;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,45,.05);
  --sh-2:0 6px 20px rgba(15,27,45,.07);
  --sh-3:0 16px 40px rgba(15,27,45,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp:8px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary-d);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea{font-family:inherit;font-size:15px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:10px;
  font-size:15px;font-weight:600;line-height:1;
  transition:all .2s var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:#E85B1E;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(15,27,45,.18);}
.btn-ghost{background:#fff;color:var(--c-ink);border:1px solid var(--c-line);}
.btn-ghost:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-s);}
.btn-blue{background:var(--c-primary);color:#fff;}
.btn-blue:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:var(--r-pill);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{background:#EEF1F6;color:#A9B2C0;cursor:not-allowed;box-shadow:none;transform:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);}
.link-arrow i{font-size:14px;transition:transform .2s var(--ease);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:6px;
  font-size:12px;line-height:1;background:var(--c-primary-s);color:var(--c-primary);font-weight:500;
}
.tag-accent{background:var(--c-accent-s);color:var(--c-accent);}
.tag-gray{background:#EEF1F6;color:var(--c-ink3);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--c-line);transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;gap:32px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.brand:hover .brand-mark{transform:rotate(8deg);background:var(--c-primary-d);}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.2px;}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink2);
  padding:20px 0;line-height:1;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:12px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);left:50%;right:auto;width:20px;margin-left:-10px;}
.nav-tools{display:flex;align-items:center;gap:16px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:200px;height:36px;padding:0 14px;
  background:var(--c-bg);border:1px solid transparent;border-radius:var(--r-pill);
  transition:all .2s var(--ease);
}
.nav-search i{font-size:13px;color:var(--c-ink3);}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--c-ink);}
.nav-search input::placeholder{color:#A9B2C0;}
.nav-search:focus-within{
  background:#fff;border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(26,95,208,.14);
}
.nav-login{font-size:15px;font-weight:500;color:var(--c-ink2);}
.nav-login:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;color:var(--c-ink);
  align-items:center;justify-content:center;font-size:18px;
}
.nav-toggle:hover{background:var(--c-bg);color:var(--c-primary);}
.nav-mask{
  display:none;position:fixed;inset:0;background:rgba(15,27,45,.4);z-index:90;opacity:0;
  transition:opacity .25s var(--ease);
}
.nav-mask.is-open{opacity:1;}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink3);flex-wrap:wrap;}
.crumb a{color:var(--c-primary);font-weight:500;}
.crumb a:hover{text-decoration:underline;}
.crumb span.sep{color:#C3CBD8;}
.crumb .current{color:var(--c-ink3);}

/* ============ 页头横幅 ============ */
.page-hero{
  position:relative;overflow:hidden;background:#0F1B2D;
  border-radius:0 0 var(--r-l) var(--r-l);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(9,18,33,.94) 0%,rgba(15,63,150,.72) 58%,rgba(15,27,45,.55) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:56px 0 60px;max-width:760px;}
.page-hero .crumb{color:rgba(255,255,255,.68);margin-bottom:20px;}
.page-hero .crumb a{color:#fff;}
.page-hero .crumb .current{color:rgba(255,255,255,.66);}
.page-hero .crumb span.sep{color:rgba(255,255,255,.35);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:13px;font-weight:500;margin-bottom:20px;
}
.hero-badge i{font-size:12px;color:#FFB98F;}
.page-hero h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;color:#fff;
  margin-bottom:16px;
}
.page-hero p.lead{font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);max-width:620px;}
.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}
.page-hero .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.32);color:#fff;}
.page-hero .btn-ghost:hover{background:#fff;color:var(--c-primary-d);border-color:#fff;}

/* ============ 搜索条 ============ */
.search-bar{
  display:flex;gap:12px;align-items:center;margin-top:28px;max-width:620px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);
  border-radius:var(--r-pill);padding:6px 6px 6px 18px;
}
.search-bar i{color:rgba(255,255,255,.7);font-size:14px;}
.search-bar input{
  flex:1;border:0;background:transparent;outline:none;color:#fff;height:36px;font-size:15px;
}
.search-bar input::placeholder{color:rgba(255,255,255,.55);}
.search-bar .btn{height:36px;}

/* ============ 速查数据 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:-34px;position:relative;z-index:5;
}
.stat-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  box-shadow:var(--sh-2);padding:20px 22px;
}
.stat-card .num{
  font-size:26px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-card .num em{font-size:14px;font-style:normal;color:var(--c-ink3);margin-left:4px;font-weight:500;}
.stat-card p{font-size:13px;color:var(--c-ink2);margin-top:4px;}

/* ============ 板块通用 ============ */
.section{padding:72px 0;}
.section-lg{padding:88px 0;}
.section-head{margin-bottom:32px;}
.section-head h2{
  position:relative;font-size:28px;line-height:1.4;font-weight:700;letter-spacing:-.3px;
  padding-left:20px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--c-primary);
}
.section-head p{font-size:15px;color:var(--c-ink2);margin-top:10px;padding-left:20px;max-width:620px;}

/* ============ 主体双栏 ============ */
.faq-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:32px;align-items:start;}
.anchor-nav{
  position:sticky;top:88px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-m);box-shadow:var(--sh-2);padding:22px 18px;
}
.anchor-nav h3{font-size:15px;font-weight:700;margin-bottom:14px;padding-left:10px;position:relative;}
.anchor-nav h3::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:2px;background:var(--c-accent);}
.anchor-nav ul li a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  height:44px;padding:0 10px;border-radius:var(--r-s);
  font-size:14px;color:var(--c-ink2);font-weight:500;
  transition:all .2s var(--ease);
}
.anchor-nav ul li a i{font-size:12px;opacity:.5;}
.anchor-nav ul li a:hover{background:var(--c-bg);color:var(--c-primary);transform:translateX(2px);}
.anchor-nav ul li a.is-active{background:var(--c-primary-s);color:var(--c-primary);font-weight:600;}
.anchor-tip{
  margin-top:18px;padding-top:18px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-ink3);line-height:1.7;
}
.anchor-tip a{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-weight:600;}

/* ============ FAQ ============ */
.faq-group{margin-bottom:36px;}
.faq-group:last-child{margin-bottom:0;}
.faq-group-title{
  display:flex;align-items:center;gap:10px;font-size:22px;font-weight:600;
  margin-bottom:16px;letter-spacing:-.2px;
}
.faq-group-title span{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--c-primary-s);
  color:var(--c-primary);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.faq-list{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  box-shadow:var(--sh-2);overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-line);position:relative;}
.faq-item:last-child{border-bottom:0;}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-accent);
  transform:scaleY(0);transform-origin:top;transition:transform .25s var(--ease);
}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{background:var(--c-bg);color:var(--c-primary);}
.faq-q i{
  flex:none;font-size:15px;color:var(--c-primary);transition:transform .25s var(--ease),color .25s var(--ease);
}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--c-accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{
  padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-ink2);max-width:760px;
}
.faq-a .step-list{margin-top:10px;display:flex;flex-direction:column;gap:6px;}
.faq-a .step-list li{font-size:14px;color:var(--c-ink2);padding-left:18px;position:relative;}
.faq-a .step-list li::before{
  content:"";position:absolute;left:4px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}
.faq-empty{
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  min-height:200px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  color:var(--c-ink3);font-size:14px;text-align:center;padding:32px;
}
.faq-empty i{font-size:28px;color:var(--c-primary);opacity:.4;}
.faq-empty.is-show{display:flex;}

/* ============ 提问表单 ============ */
.ask-card{
  position:relative;background:#fff;border:1px solid var(--c-primary);
  border-radius:var(--r-l);box-shadow:var(--sh-2);overflow:hidden;
}
.ask-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--c-primary);
}
.ask-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:36px;padding:40px 40px 40px 46px;}
.ask-info h2{font-size:26px;font-weight:700;letter-spacing:-.3px;margin-bottom:14px;}
.ask-info p{font-size:15px;line-height:1.85;color:var(--c-ink2);max-width:460px;}
.ask-points{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.ask-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-ink2);line-height:1.7;}
.ask-points i{color:var(--c-success);font-size:14px;margin-top:5px;}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink2);margin-bottom:8px;}
.form-field input,.form-field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  padding:0 16px;height:48px;color:var(--c-ink);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-field textarea{height:104px;padding:12px 16px;resize:vertical;line-height:1.7;}
.form-field input::placeholder,.form-field textarea::placeholder{color:#A9B2C0;}
.form-field input:focus,.form-field textarea:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(26,95,208,.14);
}
.form-note{font-size:12px;color:var(--c-ink3);margin-top:12px;line-height:1.6;}
.form-note a{font-weight:600;}

/* ============ 相关推荐 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.rec-card{
  display:block;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  overflow:hidden;box-shadow:var(--sh-2);color:var(--c-ink);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--c-primary-s);color:var(--c-ink);}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-s);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.rec-card:hover .rec-thumb img{transform:scale(1.05);}
.rec-thumb .tag{position:absolute;left:12px;top:12px;background:#fff;box-shadow:var(--sh-1);}
.rec-body{padding:18px 20px 20px;}
.rec-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px;}
.rec-card:hover .rec-body h3{color:var(--c-primary);}
.rec-body p{font-size:14px;line-height:1.75;color:var(--c-ink2);}
.rec-meta{margin-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-ink3);}
.rec-meta .go{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.rec-meta .go i{transition:transform .2s var(--ease);}
.rec-card:hover .rec-meta .go i{transform:translateX(4px);}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:56px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.f-brand .brand{margin-bottom:16px;}
.f-brand p{font-size:14px;line-height:1.85;color:var(--c-ink2);max-width:320px;}
.f-social{display:flex;gap:10px;margin-top:18px;}
.f-social a{
  width:36px;height:36px;border-radius:10px;background:var(--c-bg);border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-ink2);font-size:14px;
  transition:all .2s var(--ease);
}
.f-social a:hover{background:var(--c-primary-s);color:var(--c-primary);border-color:var(--c-primary-s);transform:translateY(-2px);}
.f-col h3{font-size:15px;font-weight:700;margin-bottom:14px;}
.f-col ul li{font-size:14px;line-height:2.1;color:var(--c-ink2);}
.f-col ul li a{color:var(--c-ink2);display:inline-block;transition:all .2s var(--ease);}
.f-col ul li a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-ink3);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--c-line);box-shadow:var(--sh-2);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-primary);
  opacity:0;visibility:hidden;transform:translateY(10px);z-index:70;
  transition:all .25s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links{gap:22px;}
  .nav-search{display:none;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:220px minmax(0,1fr);gap:24px;}
  .ask-grid{grid-template-columns:1fr;gap:28px;padding:34px 30px 34px 36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  body{font-size:15px;}
  .nav-inner{height:56px;gap:12px;}
  .brand-text{font-size:16px;}
  .nav-toggle{display:inline-flex;}
  .nav-login{display:none;}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:280px;z-index:95;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:20px 16px;margin:0;transform:translateX(100%);
    transition:transform .28s var(--ease);box-shadow:var(--sh-3);overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{
    height:48px;padding:0 12px;display:flex;align-items:center;font-size:15px;
    border-radius:10px;
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--c-primary-s);}
  .nav-tools{gap:10px;margin-left:auto;}
  .nav-mask{display:block;pointer-events:none;}
  .nav-mask.is-open{pointer-events:auto;}
  .page-hero{border-radius:0 0 var(--r-m) var(--r-m);}
  .page-hero-inner{padding:40px 0 44px;}
  .page-hero h1{font-size:28px;line-height:1.35;}
  .page-hero p.lead{font-size:15px;}
  .hero-actions .btn{flex:1;min-width:140px;}
  .search-bar{flex-wrap:wrap;border-radius:var(--r-m);padding:8px 12px;}
  .search-bar input{width:100%;flex:1 1 60%;}
  .search-bar .btn{width:100%;}
  .stat-strip{margin-top:24px;gap:12px;}
  .stat-card{padding:16px;}
  .stat-card .num{font-size:22px;}
  .section{padding:40px 0;}
  .section-lg{padding:56px 0;}
  .section-head h2{font-size:22px;}
  .faq-layout{grid-template-columns:1fr;gap:24px;}
  .anchor-nav{position:static;}
  .anchor-nav ul{display:grid;grid-template-columns:1fr 1fr;gap:6px;}
  .faq-group-title{font-size:19px;}
  .faq-q{font-size:15px;padding:14px 16px;}
  .faq-a p{padding:0 16px 18px;font-size:14px;}
  .ask-card::before{width:5px;}
  .ask-grid{padding:28px 20px 28px 24px;}
  .ask-info h2{font-size:21px;}
  .rec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;text-align:center;}
  .to-top{right:16px;bottom:18px;width:42px;height:42px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:24px;}
  .stat-strip{grid-template-columns:1fr;}
  .anchor-nav ul{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
}