/* roulang page: index */
:root {
  --bg-deep: #050D16;
  --bg-primary: #0A1E32;
  --bg-secondary: #0D2A45;
  --bg-tertiary: #07121D;
  --glass-bg: rgba(255,255,255,0.045);
  --glass-bg-strong: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.10);
  --hairline: rgba(255,255,255,0.07);
  --text-title: #EDF3FA;
  --text-body: rgba(237,243,250,0.86);
  --text-secondary: rgba(237,243,250,0.66);
  --text-muted: rgba(237,243,250,0.45);
  --accent-data: #3BF0D4;
  --accent-action: #FF9D2E;
  --glow-data: 0 0 20px rgba(59,240,212,0.28);
  --glow-action: 0 0 24px rgba(255,157,46,0.42);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  background:var(--bg-deep);
  color:var(--text-body);
  line-height:1.75;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
img{max-width:100%;display:block}
button,input,textarea{font-family:inherit}
.container{max-width:1200px}
:focus-visible{outline:2px solid var(--accent-data);outline-offset:3px;border-radius:4px}

/* 顶部信息条 */
.topbar{background:var(--bg-tertiary);height:38px;border-bottom:1px solid var(--hairline);font-size:.75rem;color:rgba(237,243,250,.65)}
.topbar-domain{font-variant-numeric:tabular-nums;letter-spacing:.04em}
.topbar a{color:inherit;margin-left:18px;transition:color .2s ease-out;-webkit-transition:color .2s ease-out}
.topbar a:hover{color:#fff}
.topbar-mobile-cta{color:var(--accent-data) !important;font-weight:600}

/* 主导航 */
.main-nav{background:var(--bg-primary);border-bottom:1px solid var(--hairline);min-height:72px;padding-top:0;padding-bottom:0;position:sticky;top:0;z-index:1080;transition:background .3s ease-out,box-shadow .3s ease-out}
.main-nav.is-scrolled{background:rgba(10,30,50,.88);box-shadow:0 10px 30px rgba(0,0,0,.25);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.navbar-brand{display:flex;align-items:center;gap:.75rem;margin-right:0}
.brand-icon{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,rgba(59,240,212,.18),rgba(59,240,212,.04));border:1px solid rgba(59,240,212,.28);display:flex;align-items:center;justify-content:center;color:var(--accent-data);flex-shrink:0}
.brand-main{font-size:1.5rem;font-weight:700;color:var(--text-title);letter-spacing:1px;line-height:1.2;white-space:nowrap}
.brand-55{-webkit-text-stroke:1.6px var(--accent-action);color:transparent;font-weight:800}
.brand-divider{width:1px;height:22px;background:rgba(255,255,255,.16);display:inline-block}
.brand-sub{font-size:.75rem;color:var(--text-secondary);letter-spacing:2px;padding-top:8px;white-space:nowrap}
.navbar-nav{gap:.25rem}
.nav-link{color:var(--text-secondary) !important;font-weight:500;padding:.75rem 1rem !important;position:relative;transition:color .2s ease-out !important;-webkit-transition:color .2s ease-out !important;white-space:nowrap}
.nav-link:hover,.nav-link.active{color:#fff !important}
.nav-link::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%) scaleX(0);width:70%;height:2px;background:linear-gradient(90deg,rgba(59,240,212,0),var(--accent-data),var(--accent-action),rgba(255,157,46,0));border-radius:2px;transition:transform .28s ease-out;-webkit-transition:transform .28s ease-out;transform-origin:center}
.nav-link:hover::after,.nav-link.active::after{transform:translateX(-50%) scaleX(1)}
.nav-cta{margin-left:.5rem;padding:.5rem 1.4rem !important;border-radius:999px;background:linear-gradient(135deg,#FF9D2E 0%,#FFB25C 100%);color:#0A1E32 !important;font-weight:600;box-shadow:0 0 20px rgba(255,157,46,.28),0 6px 20px rgba(255,157,46,.15);border:none;transition:transform .2s ease-out,box-shadow .25s ease-out,-webkit-transform .2s ease-out}
.nav-cta:hover{box-shadow:0 0 32px rgba(255,157,46,.52),0 10px 28px rgba(255,157,46,.22);transform:translateY(-2px);color:#0A1E32 !important}
.nav-cta:active{transform:scale(.96)}
.nav-cta::after{display:none}
.navbar-toggler{border:1px solid rgba(255,255,255,.22);padding:.4rem .6rem;border-radius:8px;background:rgba(255,255,255,.03)}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(59,240,212,.2);outline:none;border-color:rgba(59,240,212,.4)}
.toggler-bar{display:block;width:22px;height:2px;background:var(--text-title);margin:4px auto;border-radius:2px}

/* 按钮 */
.btn-accent{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,#FF9D2E 0%,#FFB25C 100%);color:#0A1E32;border-radius:999px;padding:13px 30px;font-weight:600;border:none;box-shadow:0 0 24px rgba(255,157,46,.30),0 8px 24px rgba(255,157,46,.18);transition:transform .25s ease-out,box-shadow .25s ease-out,background .25s ease-out;-webkit-transition:transform .25s ease-out,box-shadow .25s ease-out,background .25s ease-out;text-decoration:none;line-height:1.4;font-size:1rem}
.btn-accent:hover{box-shadow:0 0 34px rgba(255,157,46,.5),0 12px 30px rgba(255,157,46,.24);transform:translateY(-2px);color:#0A1E32}
.btn-accent:active{transform:scale(.97)}
.btn-outline{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.06);color:var(--text-title);border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:13px 30px;font-weight:500;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:all .25s ease-out;-webkit-transition:all .25s ease-out;text-decoration:none;line-height:1.4;font-size:1rem}
.btn-outline:hover{border-color:rgba(59,240,212,.45);background:rgba(255,255,255,.1);color:#fff}
.btn-outline:active{transform:scale(.97)}

/* 区块 */
.section{padding:clamp(3.5rem,7vw,6rem) 0;position:relative}
.section--alt{background:var(--bg-primary);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}
.section-eyebrow{color:var(--accent-data);font-size:.8125rem;letter-spacing:.16em;text-transform:uppercase;display:inline-block;margin-bottom:.75rem;font-weight:600}
.section-title{color:var(--text-title);font-size:clamp(1.5rem,2.5vw,2.25rem);font-weight:600;margin-bottom:1rem;line-height:1.3}
.section-lead{color:var(--text-secondary);max-width:540px;font-size:.9375rem;margin-bottom:1.5rem;line-height:1.75}
.section-more{color:var(--text-secondary);font-size:.875rem;transition:color .2s;display:inline-flex;align-items:center;gap:4px}
.section-more:hover{color:var(--accent-action)}

/* Hero */
.hero{position:relative;background:linear-gradient(180deg,rgba(10,30,50,.92) 0%,rgba(7,21,33,.82) 100%),radial-gradient(ellipse at 82% 18%,rgba(13,42,69,.55) 0%,transparent 62%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;padding:clamp(4rem,8vw,6.5rem) 0;color:var(--text-title);overflow:hidden}
.hero-watermark{position:absolute;right:2%;top:4%;font-size:clamp(240px,30vw,400px);font-weight:800;line-height:1;color:var(--text-title);opacity:.07;pointer-events:none;z-index:0;letter-spacing:-.06em;user-select:none}
.hero .container{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(59,240,212,.08);border:1px solid rgba(59,240,212,.18);color:var(--accent-data);font-size:.8125rem;padding:.28rem .9rem;border-radius:999px;letter-spacing:.08em;margin-bottom:1.25rem}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-data);box-shadow:0 0 10px var(--accent-data)}
.hero-title{font-size:clamp(1.875rem,4vw,3rem);font-weight:700;line-height:1.28;margin:0 0 1.1rem;max-width:560px;color:var(--text-title)}
.hero-subtle{color:rgba(237,243,250,.72);font-size:1.0625rem;line-height:1.85;max-width:470px;margin-bottom:2rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2.5rem}
.hero-stats{display:flex;flex-wrap:wrap;gap:2rem}
.hero-stats span{color:var(--text-secondary);font-size:.8125rem;display:flex;flex-direction:column;gap:.2rem;letter-spacing:.04em}
.hero-stats strong{color:var(--accent-data);font-size:1.75rem;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1}
.hero-visual-col{position:relative}
.hero-dash-wrap{position:relative;max-width:480px;margin:0 auto;padding:12px 8px}
.dash-card{position:relative;background:rgba(255,255,255,.05);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.10);border-radius:16px;padding:24px;box-shadow:0 12px 32px rgba(0,0,0,.22),inset 0 1px 0 rgba(255,255,255,.08);z-index:2}
.dash-card--back{position:absolute;top:28px;left:0;right:28px;bottom:-24px;z-index:0;opacity:.5}
.dash-head{display:flex;align-items:center;gap:10px;color:var(--text-title);font-size:.9375rem;font-weight:600;margin-bottom:1.5rem;letter-spacing:.04em}
.dash-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-data);box-shadow:0 0 12px var(--accent-data)}
.dash-row{display:grid;grid-template-columns:90px 1fr;align-items:center;gap:12px;margin-bottom:1rem;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.05)}
.dash-row:last-child{margin-bottom:0;border-bottom:none}
.dash-row span{color:var(--text-secondary);font-size:.8125rem;white-space:nowrap}
.dash-bar{height:8px;border-radius:4px;background:rgba(255,255,255,.06);overflow:hidden}
.dash-bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,rgba(59,240,212,.55),rgba(59,240,212,.95));box-shadow:0 0 14px rgba(59,240,212,.25)}

/* 指标看板 */
.metric-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:16px;padding:24px 22px;position:relative;overflow:hidden;height:100%;box-shadow:0 12px 32px rgba(0,0,0,.18),inset 0 1px 0 rgba(255,255,255,.07);transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;-webkit-transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out}
.metric-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--accent-data),transparent);opacity:0;transition:opacity .25s ease-out}
.metric-card:hover{transform:translateY(-4px);border-color:rgba(59,240,212,.24);box-shadow:0 20px 48px rgba(0,0,0,.3),0 0 0 1px rgba(59,240,212,.16),inset 0 1px 0 rgba(255,255,255,.10)}
.metric-card:hover::before{opacity:1}
.metric-card .metric-bg{position:absolute;right:-12px;top:-12px;width:90px;height:90px;border-radius:50%;background:radial-gradient(circle,rgba(59,240,212,.08),transparent 70%);pointer-events:none}
.metric-icon{width:38px;height:38px;border-radius:10px;background:rgba(59,240,212,.08);border:1px solid rgba(59,240,212,.12);display:flex;align-items:center;justify-content:center;color:var(--accent-data);margin-bottom:1.25rem}
.metric-value{font-size:clamp(2rem,4vw,3.25rem);font-weight:700;color:var(--accent-data);font-variant-numeric:tabular-nums;line-height:1;letter-spacing:-.02em}
.metric-value small{font-size:1rem;color:var(--text-muted);margin-left:2px;font-weight:400}
.metric-label{margin-top:.65rem;color:var(--text-secondary);font-size:.875rem;letter-spacing:.02em}
.metric-trend{margin-top:.9rem;color:var(--text-muted);font-size:.75rem;letter-spacing:.04em;display:flex;align-items:center;gap:6px}
.metric-trend svg{width:14px;height:14px;color:var(--accent-data)}

/* 服务矩阵 */
.service-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:16px;overflow:hidden;position:relative;height:100%;box-shadow:0 12px 32px rgba(0,0,0,.18),inset 0 1px 0 rgba(255,255,255,.07);transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;-webkit-transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;display:flex;flex-direction:column}
.service-card:hover{transform:translateY(-4px);border-color:rgba(59,240,212,.25);box-shadow:0 20px 48px rgba(0,0,0,.32),0 0 0 1px rgba(59,240,212,.14),inset 0 1px 0 rgba(255,255,255,.12)}
.service-num{position:absolute;right:14px;top:2px;font-size:64px;font-weight:700;opacity:.06;color:var(--text-title);line-height:1;pointer-events:none;z-index:0;letter-spacing:-.04em;user-select:none}
.service-media{overflow:hidden}
.service-media img{width:100%;height:100%;min-height:230px;object-fit:cover;transition:transform .45s ease-out;-webkit-transition:transform .45s ease-out}
.service-card:hover .service-media img{transform:scale(1.04)}
.service-body{padding:24px;display:flex;flex-direction:column;justify-content:center;flex:1;position:relative;z-index:1}
.service-tag{display:inline-flex;align-self:flex-start;background:rgba(59,240,212,.08);border:1px solid rgba(59,240,212,.14);color:var(--accent-data);font-size:.75rem;border-radius:999px;padding:.2rem .75rem;margin-bottom:.9rem;letter-spacing:.04em}
.service-title{font-size:1.125rem;font-weight:600;color:var(--text-title);margin-bottom:.5rem;letter-spacing:.02em}
.service-desc{font-size:.9375rem;color:var(--text-secondary);line-height:1.75;margin-bottom:1.1rem}
.service-link{color:var(--accent-action);font-size:.875rem;font-weight:500;display:inline-flex;align-items:center;gap:6px;position:relative;width:max-content}
.service-link::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--accent-action);transition:width .25s ease-out;-webkit-transition:width .25s ease-out}
.service-link:hover::after{width:100%}
.service-card--sm{padding:24px}
.service-icon{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,rgba(59,240,212,.16),rgba(59,240,212,.04));border:1px solid rgba(59,240,212,.20);color:var(--accent-data);display:flex;align-items:center;justify-content:center;margin-bottom:1.1rem}
.service-card--sm .service-title{margin-bottom:.4rem;margin-top:0}
.service-card--sm .service-desc{margin-bottom:.9rem}

/* 结果对比 */
.compare-area{position:relative}
.compare-card{border-radius:16px;padding:28px;height:100%;position:relative;transition:transform .25s ease-out,box-shadow .25s ease-out;-webkit-transition:transform .25s ease-out,box-shadow .25s ease-out}
.compare-card--standard{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07)}
.compare-card--new{background:rgba(59,240,212,.045);border:1px solid rgba(59,240,212,.13);box-shadow:0 0 40px rgba(59,240,212,.06)}
.compare-card--new:hover,.compare-card--standard:hover{transform:translateY(-3px)}
.brand-badge{display:inline-block;padding:.32rem 1rem;background:linear-gradient(135deg,#FF9D2E,#FFB25C);color:#0A1E32;border-radius:999px;font-weight:700;font-size:.75rem;letter-spacing:.1em;margin-bottom:1.5rem;box-shadow:0 0 16px rgba(255,157,46,.3)}
.compare-card h3{color:var(--text-title);font-size:1.125rem;font-weight:600;margin-bottom:1.5rem}
.compare-row{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.compare-row:last-child{border-bottom:none}
.compare-label{color:var(--text-secondary);font-size:.875rem;margin-bottom:.55rem;display:flex;justify-content:space-between;align-items:center}
.compare-track{height:8px;border-radius:4px;background:rgba(255,255,255,.05);overflow:hidden;position:relative}
.compare-track .bar{display:block;height:100%;border-radius:4px}
.bar-gray{background:rgba(255,255,255,.28)}
.bar-amber{background:linear-gradient(90deg,#FF9D2E,#FFB25C);box-shadow:0 0 14px rgba(255,157,46,.35)}
.compare-axis{display:flex;align-items:center;justify-content:center;height:100%;color:var(--accent-action);font-size:2rem;font-weight:300;position:relative}
.compare-axis::before{content:"";position:absolute;width:2px;height:60%;background:linear-gradient(180deg,var(--accent-action),rgba(255,157,46,0));left:50%;top:20%;opacity:.5}

/* 最新动态 */
.news-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:16px;overflow:hidden;height:100%;display:flex;flex-direction:column;box-shadow:0 12px 32px rgba(0,0,0,.16),inset 0 1px 0 rgba(255,255,255,.06);transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;-webkit-transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out}
.news-card:hover{transform:translateY(-4px);border-color:rgba(59,240,212,.22);box-shadow:0 20px 48px rgba(0,0,0,.30),0 0 0 1px rgba(59,240,212,.12)}
.news-media{aspect-ratio:16/9;overflow:hidden;position:relative;background:var(--bg-secondary)}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease-out;-webkit-transition:transform .45s ease-out}
.news-card:hover .news-media img{transform:scale(1.04)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:.45rem;flex:1}
.news-cat{background:rgba(59,240,212,.10);color:var(--accent-data);border:1px solid rgba(59,240,212,.14);border-radius:999px;padding:.12rem .7rem;font-size:.75rem;align-self:flex-start;letter-spacing:.04em}
.news-title{font-size:1.0625rem;font-weight:600;color:var(--text-title);line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:3.1em}
.news-excerpt{color:var(--text-secondary);font-size:.875rem;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.6em}
.news-footer{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:.65rem;border-top:1px solid var(--hairline)}
.news-footer time{color:var(--text-muted);font-size:.75rem;font-variant-numeric:tabular-nums;letter-spacing:.03em}
.news-more{color:var(--accent-action);font-size:.8125rem;font-weight:500;transition:color .2s ease-out;display:inline-flex;align-items:center;gap:4px}
.news-more:hover{color:#fff}
.news-empty{border:1.5px dashed rgba(255,255,255,.16);border-radius:16px;height:280px;display:flex;flex-direction:column;gap:1rem;align-items:center;justify-content:center;background:rgba(255,255,255,.02)}
.news-empty svg{width:48px;height:48px;color:var(--text-muted);stroke-width:1.2}
.news-empty p{color:var(--text-muted);font-size:1rem}

/* FAQ */
.accordion-outer{display:flex;gap:16px;flex-direction:column}
.faq-accordion{display:flex;flex-direction:column;gap:12px}
.faq-item{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);border-radius:12px;overflow:hidden;transition:border-color .25s ease-out,background .25s ease-out}
.faq-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--accent-action);background:rgba(255,255,255,.06)}
.accordion-button{background:transparent;color:var(--text-title) !important;font-size:1rem;font-weight:500;padding:1rem 1.25rem;box-shadow:none !important;border:0;position:relative;transition:color .2s ease-out}
.accordion-button:not(.collapsed){color:var(--text-title) !important;background:transparent}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--accent-data);outline-offset:2px}
.accordion-button::after{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' viewBox='0 0 16 16'%3E%3Cpath fill='%23EDF3FA' d='M8 2a1 1 0 0 1 1 1v4h4a1 1 0 1 1 0 2H9v4a1 1 0 1 1-2 0V9H3a1 1 0 1 1 0-2h4V3a1 1 0 0 1 1-1Z'/%3E%3C/svg%3E");background-size:16px;transition:transform .25s ease-out;-webkit-transition:transform .25s ease-out}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);-webkit-transform:rotate(45deg);filter:brightness(1.3)}
.accordion-body{color:var(--text-body);font-size:.875rem;line-height:1.8;padding:.25rem 1.25rem 1.25rem}
.faq-side-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:16px;padding:30px;height:100%;display:flex;flex-direction:column;position:relative;overflow:hidden;box-shadow:0 12px 32px rgba(0,0,0,.18)}
.faq-side-card h3{color:var(--text-title);font-size:1.25rem;font-weight:600;margin-bottom:.75rem}
.faq-side-card p{color:var(--text-secondary);font-size:.9375rem;line-height:1.8;margin-bottom:1.5rem;flex:1}
.faq-side-card .btn-accent{align-self:flex-start}

/* 转化表单 */
.form-card,.contact-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:16px;padding:32px;height:100%;position:relative;box-shadow:0 12px 32px rgba(0,0,0,.18),inset 0 1px 0 rgba(255,255,255,.07)}
.form-card h3,.contact-card h3{color:var(--text-title);font-size:1.25rem;font-weight:600;margin-bottom:1.5rem}
.form-label{color:var(--text-secondary);font-size:.8125rem;margin-bottom:.4rem;font-weight:500}
.form-control{background:#0B1B2C;border:1px solid rgba(255,255,255,.12);border-radius:12px;height:46px;color:var(--text-title);font-size:.9375rem;transition:border-color .2s ease-out,box-shadow .2s ease-out,-webkit-box-shadow .2s ease-out}
textarea.form-control{min-height:130px;resize:vertical}
.form-control:focus{background:#0B1B2C;border-color:var(--accent-data);box-shadow:0 0 0 3px rgba(59,240,212,.15);color:var(--text-title)}
.form-control::placeholder{color:var(--text-muted)}
.form-submit{width:100%;height:48px;border-radius:999px;justify-content:center;margin-top:.25rem}
.form-privacy{color:var(--text-muted);font-size:.75rem;text-align:center;margin-top:.85rem;line-height:1.6}
.contact-card ul{list-style:none;padding:0;margin:0}
.contact-card li{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.contact-card li:last-child{border-bottom:none}
.contact-card .c-icon{width:40px;height:40px;border-radius:10px;background:rgba(59,240,212,.08);color:var(--accent-data);display:flex;align-items:center;justify-content:center;border:1px solid rgba(59,240,212,.12);flex-shrink:0}
.contact-card .c-label{font-size:.8125rem;color:var(--text-secondary);display:block}
.contact-card .c-value{font-size:.9375rem;color:var(--text-title);font-weight:500;margin-left:auto;text-align:right;font-variant-numeric:tabular-nums}
.contact-extra{margin-top:1.25rem;padding-top:1.25rem;border-top:1px dashed rgba(255,255,255,.12);color:var(--text-muted);font-size:.8125rem;line-height:1.7}
.contact-extra strong{color:var(--accent-action);font-weight:500}

/* 页脚 */
.site-footer{background:var(--bg-tertiary);border-top:1px solid var(--hairline);padding:4rem 0 0}
.footer-top{padding-bottom:3rem}
.footer-brand{display:flex;align-items:center;gap:.65rem;margin-bottom:.5rem}
.footer-brand .brand-main{font-size:1.4rem}
.footer-brand .brand-sub{font-size:.7rem;padding-top:6px}
.footer-desc{color:var(--text-secondary);font-size:.875rem;line-height:1.85;margin-top:1.1rem;max-width:24rem}
.footer-domain{color:var(--text-muted);font-size:.75rem;margin-top:.8rem;font-variant-numeric:tabular-nums;letter-spacing:.04em}
.footer-col h4{color:var(--text-title);font-size:.9375rem;font-weight:600;margin-bottom:1.25rem;letter-spacing:.04em}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col ul li{margin-bottom:.65rem;color:var(--text-secondary);font-size:.875rem}
.footer-col ul a{color:var(--text-secondary);font-size:.875rem;transition:color .2s ease-out;-webkit-transition:color .2s ease-out}
.footer-col ul a:hover{color:var(--accent-data)}
.footer-col ul li span{font-variant-numeric:tabular-nums}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:1.25rem 0;display:flex;justify-content:space-between;align-items:center;font-size:.8125rem;color:var(--text-muted);flex-wrap:wrap;gap:.5rem}
.footer-filing{letter-spacing:.06em}

/* 响应式 */
@media (max-width:1199.98px){
  .metric-card{padding:20px 18px}
  .service-media img{min-height:200px}
  .service-body{padding:20px}
  .dash-card--back{right:16px}
}
@media (max-width:991.98px){
  .navbar-collapse{background:var(--bg-primary);border:1px solid var(--glass-border);border-radius:16px;padding:1rem 1.25rem;margin-top:12px;box-shadow:0 20px 48px rgba(0,0,0,.35)}
  .nav-link{line-height:44px;font-size:1rem;padding:.25rem 0 !important;border-bottom:1px solid rgba(255,255,255,.05)}
  .nav-cta{margin-left:0;margin-top:1rem;width:100%;justify-content:center;display:flex;padding:12px !important;line-height:1.4}
  .hero-dash-wrap{margin-top:2rem}
  .compare-axis{display:none}
  .compare-area .row .col-lg-5{margin-bottom:1rem}
  .faq-side-card{margin-top:1rem}
  .form-card,.contact-card{padding:26px}
}
@media (max-width:767.98px){
  .topbar-fs{font-size:.7rem}
  .hero{padding:3.5rem 0 3rem}
  .hero-stats{gap:1.25rem}
  .hero-stats strong{font-size:1.5rem}
  .hero-actions{gap:.75rem;flex-direction:column;align-items:stretch}
  .hero-actions .btn-accent,.hero-actions .btn-outline{justify-content:center;width:100%}
  .service-media img{min-height:160px}
  .service-body{padding:18px}
  .service-card--sm{padding:20px}
  .compare-card{padding:20px}
  .news-body{padding:16px}
  .contact-card li{flex-wrap:wrap}
  .contact-card .c-value{width:100%;margin-left:54px;text-align:left}
  .footer-top .col-6{flex:0 0 50%;max-width:50%;margin-bottom:2rem}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media (max-width:575.98px){
  .section{padding:3rem 0}
  .metric-card{padding:18px 14px}
  .metric-card .metric-icon{margin-bottom:.9rem}
  .brand-sub{display:none}
  .brand-divider{display:none}
  .topbar-domain{font-size:.7rem}
  .footer-top .col-6{flex:0 0 100%;max-width:100%}
}

/* roulang page: category1 */
:root{
  --bg-deep:#050D16;
  --bg-primary:#0A1E32;
  --bg-secondary:#0D2A45;
  --bg-tertiary:#07121D;
  --glass-bg:rgba(255,255,255,0.045);
  --glass-bg-strong:rgba(255,255,255,0.08);
  --glass-border:rgba(255,255,255,0.10);
  --hairline:rgba(255,255,255,0.07);
  --text-title:#EDF3FA;
  --text-body:rgba(237,243,250,0.86);
  --text-secondary:rgba(237,243,250,0.66);
  --text-muted:rgba(237,243,250,0.45);
  --accent-data:#3BF0D4;
  --accent-action:#FF9D2E;
  --glow-data:0 0 20px rgba(59,240,212,0.28);
  --glow-action:0 0 24px rgba(255,157,46,0.42);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:999px;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--bg-deep);
  color:var(--text-body);
  line-height:1.75;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
img{max-width:100%;height:auto;display:block}
button,input,textarea{font-family:inherit}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
@media(max-width:575.98px){.container{padding-left:16px;padding-right:16px}}
.section{padding-top:clamp(3.5rem,7vw,6rem);padding-bottom:clamp(3.5rem,7vw,6rem);position:relative}
.section-head{text-align:center;max-width:680px;margin:0 auto 3rem}
.section-head .subtitle{color:var(--accent-data);font-size:.875rem;letter-spacing:.08em;display:flex;align-items:center;justify-content:center;gap:.5rem}
.section-head .subtitle::before,.section-head .subtitle::after{content:"";width:28px;height:1px;background:linear-gradient(90deg,transparent,var(--accent-data));display:inline-block}
.section-head .subtitle::after{background:linear-gradient(90deg,var(--accent-data),transparent)}
.section-head h2{color:var(--text-title);font-size:clamp(1.5rem,2.5vw,2.25rem);font-weight:600;margin:12px 0 14px}
.section-head p{color:var(--text-secondary);font-size:.9375rem;margin:0}
.text-title{color:var(--text-title)}
.text-secondary{color:var(--text-secondary)}
.text-muted{color:var(--text-muted)}
.btn{border-radius:var(--radius-pill);font-weight:500;font-size:.9375rem;padding:.6rem 1.6rem;transition:all .25s ease-out;border:none;display:inline-flex;align-items:center;justify-content:center;gap:.45rem}
.btn:focus-visible,.nav-link:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent-data);outline-offset:3px}
.btn-accent{
  background:linear-gradient(135deg,#FFAD45,var(--accent-action));
  color:#1A1206;
  box-shadow:var(--glow-action),0 8px 24px rgba(255,157,46,.20);
}
.btn-accent:hover{background:linear-gradient(135deg,#FFB85F,var(--accent-action));color:#1A1206;transform:translateY(-2px);box-shadow:0 0 32px rgba(255,157,46,.55),0 10px 28px rgba(255,157,46,.25)}
.btn-accent:active{transform:scale(.97);box-shadow:0 0 18px rgba(255,157,46,.38)}
.btn-outline-light{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.18);
  color:var(--text-title);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.btn-outline-light:hover{border-color:var(--accent-data);color:var(--accent-data);background:rgba(59,240,212,.08);transform:translateY(-2px)}
.btn-outline-light:active{transform:scale(.97)}
/* ===== 顶部信息条 ===== */
.topbar{background:var(--bg-tertiary);height:38px;border-bottom:1px solid rgba(255,255,255,.08);font-size:.8125rem;color:rgba(237,243,250,.65)}
.topbar .topbar-domain{font-variant-numeric:tabular-nums;letter-spacing:.02em;color:rgba(237,243,250,.55)}
.topbar .topbar-links{display:flex;align-items:center;gap:18px}
.topbar .topbar-links a{color:rgba(237,243,250,.65);transition:color .2s;font-size:.8125rem}
.topbar .topbar-links a:hover{color:var(--text-title)}
@media(max-width:768px){
  .topbar .topbar-links a:nth-child(1),
  .topbar .topbar-links a:nth-child(2){display:none}
}
/* ===== 主导航 ===== */
.main-nav{background:rgba(10,30,50,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);min-height:72px;padding-top:.5rem;padding-bottom:.5rem;border-bottom:1px solid rgba(255,255,255,.10);position:sticky;top:0;z-index:1030;transition:box-shadow .25s}
.main-nav:hover{box-shadow:0 10px 40px rgba(0,0,0,.35)}
.navbar-brand{display:flex;align-items:center;gap:8px;color:var(--text-title)!important;font-size:1.15rem;font-weight:600;padding:0}
.brand-icon{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,rgba(59,240,212,.18),rgba(255,157,46,.18));border:1px solid rgba(59,240,212,.28);display:flex;align-items:center;justify-content:center;color:var(--accent-data);flex-shrink:0}
.brand-main{font-size:1.25rem;color:var(--text-title);letter-spacing:.01em}
.brand-55{font-weight:700;color:transparent;-webkit-text-stroke:1px var(--accent-data);text-shadow:0 0 12px rgba(59,240,212,.35);letter-spacing:.02em}
.brand-divider{width:1px;height:20px;background:rgba(255,255,255,.24)}
.brand-sub{font-size:.875rem;color:var(--text-secondary);letter-spacing:.06em}
.navbar-nav .nav-item{margin-left:4px}
.navbar-nav .nav-link{color:var(--text-secondary)!important;font-size:.9375rem;font-weight:400;padding:.5rem .8rem!important;position:relative;transition:color .2s;letter-spacing:.02em}
.navbar-nav .nav-link:hover{color:var(--text-title)!important}
.navbar-nav .nav-link::after{content:"";position:absolute;left:.8rem;right:.8rem;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,transparent,var(--accent-data),var(--accent-action));opacity:0;transform:scaleX(.4);transition:all .25s ease-out}
.navbar-nav .nav-link:hover::after,.navbar-nav .nav-link.active::after{opacity:1;transform:scaleX(1)}
.navbar-nav .nav-link.active{color:var(--text-title)!important;text-shadow:0 0 12px rgba(59,240,212,.3)}
.navbar-nav .nav-cta{margin-left:8px;padding:.45rem 1.25rem!important;border-radius:var(--radius-pill);font-size:.875rem}
.navbar-toggler{border:none;padding:8px 6px;outline:none;border-radius:8px}
.navbar-toggler:focus{box-shadow:none}
.toggler-bar{display:block;width:24px;height:2px;background:var(--text-title);border-radius:2px;margin:4px auto;transition:all .2s}
@media(max-width:991.98px){
  .main-nav{min-height:64px}
  .navbar-collapse{background:var(--bg-primary);border:1px solid var(--glass-border);border-radius:14px;padding:16px;margin-top:12px;box-shadow:0 16px 40px rgba(0,0,0,.4)}
  .navbar-nav .nav-item{margin:0}
  .navbar-nav .nav-link{padding:.75rem 1rem!important}
  .navbar-nav .nav-link::after{display:none}
  .navbar-nav .nav-link.active{background:rgba(59,240,212,.1);border-radius:8px}
  .navbar-nav .nav-cta{margin:8px 0 0;text-align:center}
}
/* ===== Hero ===== */
.category-hero{position:relative;padding:clamp(4.5rem,10vw,7.5rem) 0 4.5rem;background:var(--bg-primary);overflow:hidden}
.category-hero .hero-bg{position:absolute;inset:0;background-position:center;background-size:cover;opacity:.32;z-index:0}
.category-hero .hero-bg::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(10,30,50,.45) 0%,rgba(5,13,22,.92) 100%)}
.category-hero .hero-deco{position:absolute;right:-30px;bottom:-80px;font-size:clamp(220px,32vw,380px);font-weight:800;letter-spacing:.02em;color:rgba(59,240,212,.05);pointer-events:none;z-index:1;user-select:none;-webkit-text-stroke:1px rgba(59,240,212,.12)}
.category-hero .container{position:relative;z-index:2}
.hero-inner{max-width:760px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(59,240,212,.10);border:1px solid rgba(59,240,212,.25);color:var(--accent-data);font-size:.8125rem;padding:.3rem 1rem;border-radius:var(--radius-pill);margin-bottom:20px;letter-spacing:.05em}
.hero-badge svg{width:15px;height:15px}
.category-hero h1{color:var(--text-title);font-size:clamp(1.875rem,4vw,3rem);font-weight:700;line-height:1.35;margin:0 0 20px;letter-spacing:.01em}
.category-hero h1 span{color:var(--accent-data)}
.category-hero .hero-desc{font-size:1.0625rem;color:var(--text-secondary);max-width:620px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:40px;padding-top:24px;border-top:1px solid var(--hairline);color:var(--text-muted);font-size:.875rem}
.hero-meta .meta-item{display:flex;align-items:center;gap:8px}
.hero-meta .meta-item svg{width:16px;height:16px;color:var(--accent-data)}
/* ===== 平台介绍 ===== */
.platform-intro{background:var(--bg-primary);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}
.intro-badge{display:inline-flex;align-items:center;gap:6px;color:var(--accent-data);font-size:.8125rem;letter-spacing:.08em;margin-bottom:14px}
.intro-badge svg{width:16px;height:16px}
.platform-intro h2{color:var(--text-title);font-size:clamp(1.5rem,2.5vw,2.25rem);font-weight:600;line-height:1.4;margin-bottom:18px}
.platform-intro .intro-text p{color:var(--text-secondary);margin-bottom:16px;font-size:1rem}
.platform-intro .intro-points{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
.intro-point{display:flex;align-items:flex-start;gap:10px;background:rgba(255,255,255,.035);border:1px solid var(--glass-border);border-radius:10px;padding:14px 16px;transition:all .25s ease-out}
.intro-point:hover{background:rgba(255,255,255,.06);border-color:rgba(59,240,212,.22)}
.intro-point .icon{width:13px;height:13px;border-radius:50%;background:var(--accent-data);flex-shrink:0;margin-top:7px;box-shadow:0 0 8px rgba(59,240,212,.5)}
.intro-point span{font-size:.875rem;color:var(--text-body)}
.platform-intro .intro-cover{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 20px 48px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.08)}
.platform-intro .intro-cover img{width:100%;height:100%;object-fit:cover;min-height:320px}
.platform-intro .intro-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(5,13,22,.56));pointer-events:none}
.platform-intro .cover-tag{position:absolute;left:18px;bottom:18px;z-index:2;background:rgba(10,30,50,.72);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.12);color:var(--text-title);font-size:.8125rem;padding:.3rem .9rem;border-radius:var(--radius-pill)}
@media(max-width:991.98px){
  .platform-intro .intro-cover{margin-top:24px}
  .platform-intro .intro-cover img{min-height:260px}
}
@media(max-width:575.98px){
  .platform-intro .intro-points{grid-template-columns:1fr}
}
/* ===== 服务能力卡片 ===== */
.capability-section{background:var(--bg-deep);position:relative}
.capability-section::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:40px 40px}
.capability-section .container{position:relative;z-index:1}
.cap-card{
  position:relative;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:clamp(1.5rem,3vw,2.25rem);height:100%;overflow:hidden;transition:all .3s ease-out;box-shadow:0 12px 32px rgba(0,0,0,.22),inset 0 1px 0 rgba(255,255,255,.08);
}
.cap-card:hover{background:rgba(255,255,255,.065);box-shadow:0 20px 48px rgba(0,0,0,.35),0 0 0 1px rgba(59,240,212,.20);transform:translateY(-4px)}
.cap-card::before{content:"";position:absolute;top:0;left:24px;right:24px;height:1px;background:linear-gradient(90deg,transparent,var(--accent-data),transparent);opacity:0;transition:opacity .3s}
.cap-card:hover::before{opacity:1}
.cap-card .card-num{position:absolute;right:16px;top:6px;font-size:64px;font-weight:700;color:rgba(59,240,212,.06);pointer-events:none;line-height:1;letter-spacing:.02em}
.cap-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(59,240,212,.10);border:1px solid rgba(59,240,212,.22);color:var(--accent-data);margin-bottom:18px}
.cap-icon svg{width:24px;height:24px}
.cap-card h3{color:var(--text-title);font-size:1.125rem;font-weight:600;margin:0 0 12px}
.cap-card p{color:var(--text-secondary);font-size:.9375rem;margin:0 0 18px}
.cap-list{list-style:none;padding:0;margin:0 0 20px}
.cap-list li{display:flex;align-items:flex-start;gap:8px;padding:5px 0;color:var(--text-body);font-size:.875rem;line-height:1.6}
.cap-list li svg{width:14px;height:14px;color:var(--accent-data);flex-shrink:0;margin-top:5px}
.cap-link{display:inline-flex;align-items:center;gap:4px;color:var(--accent-action);font-size:.875rem;font-weight:500;transition:all .2s;text-decoration:none;position:relative}
.cap-link::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:1px;background:var(--accent-action);transition:width .25s}
.cap-link:hover::after{width:100%}
.cap-link:hover{color:#FFB85F;letter-spacing:.02em}
.cap-lg .cap-media{border-radius:10px;overflow:hidden;margin-bottom:20px;position:relative}
.cap-lg .cap-media img{width:100%;height:200px;object-fit:cover;border-radius:10px;transition:transform .4s ease}
.cap-lg:hover .cap-media img{transform:scale(1.04)}
.cap-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(5,13,22,.38));pointer-events:none}
.cap-sm{background:rgba(255,255,255,.055);border-radius:var(--radius-lg);height:100%}
.cap-sm .cap-icon{width:42px;height:42px;border-radius:10px;margin-bottom:14px}
.cap-sm h3{font-size:1rem}
.cap-sm p{font-size:.875rem;margin-bottom:0}
/* ===== 服务流程 ===== */
.process-section{background:var(--bg-secondary);position:relative;overflow:hidden}
.process-section::before{content:"";position:absolute;left:10%;top:-120px;width:420px;height:420px;border-radius:50%;background:rgba(59,240,212,.06);filter:blur(90px);pointer-events:none}
.process-step{
  position:relative;background:rgba(255,255,255,.04);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:2rem 1.5rem;height:100%;transition:all .25s ease-out;
}
.process-step:hover{background:rgba(255,255,255,.065);border-color:rgba(255,157,46,.28);transform:translateY(-4px)}
.process-step .step-num{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;font-size:.9375rem;font-weight:600;color:var(--accent-data);background:rgba(59,240,212,.12);border:1px solid rgba(59,240,212,.28);margin-bottom:18px;font-variant-numeric:tabular-nums}
.process-step h3{color:var(--text-title);font-size:1.0625rem;font-weight:600;margin-bottom:10px}
.process-step p{color:var(--text-secondary);font-size:.875rem;margin:0}
/* ===== FAQ ===== */
.faq-section{background:var(--bg-primary)}
.faq-wrap .accordion{--bs-accordion-border-width:0;--bs-accordion-btn-padding-y:1.1rem;--bs-accordion-btn-padding-x:1.25rem;--bs-accordion-body-padding-x:1.25rem;--bs-accordion-body-padding-y:1.05rem}
.faq-wrap .accordion-item{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08)!important;border-radius:var(--radius-md)!important;margin-bottom:12px;overflow:hidden;transition:border-color .25s}
.faq-wrap .accordion-item:hover{border-color:rgba(59,240,212,.2)!important}
.faq-wrap .accordion-button{background:transparent;color:var(--text-title);font-size:.9375rem;font-weight:500;box-shadow:none;border-radius:0!important;padding:1rem 1.25rem;transition:background .25s}
.faq-wrap .accordion-button:not(.collapsed){background:rgba(255,255,255,.06);color:var(--text-title);box-shadow:none}
.faq-wrap .accordion-button:focus{box-shadow:none;outline:none}
.faq-wrap .accordion-button::after{background:none;content:"";width:14px;height:14px;border-right:2px solid var(--accent-action);border-bottom:2px solid var(--accent-action);transform:rotate(45deg);transition:transform .25s;position:relative;top:-4px;right:4px}
.faq-wrap .accordion-button:not(.collapsed)::after{transform:rotate(225deg);top:4px}
.faq-wrap .accordion-body{color:var(--text-body);font-size:.875rem;line-height:1.8;padding:0 1.25rem 1.25rem;border-left:3px solid var(--accent-action);margin-left:1.25rem;background:rgba(255,157,46,.02);border-radius:0 0 8px 8px}
.faq-guide{
  position:sticky;top:100px;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.10);border-radius:var(--radius-lg);padding:2rem;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 12px 32px rgba(0,0,0,.22),inset 0 1px 0 rgba(255,255,255,.08);
}
.faq-guide h3{color:var(--text-title);font-size:1.125rem;font-weight:600;margin-bottom:12px}
.faq-guide p{color:var(--text-secondary);font-size:.9375rem;margin-bottom:20px}
@media(max-width:991.98px){
  .faq-guide{position:static;margin-top:20px}
}
/* ===== CTA ===== */
.cta-section{background:var(--bg-deep);position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;right:-80px;top:-80px;width:360px;height:360px;border-radius:50%;background:rgba(255,157,46,.08);filter:blur(100px);pointer-events:none}
.cta-box{
  position:relative;border:1px solid rgba(255,255,255,.10);border-radius:20px;background:linear-gradient(135deg,rgba(255,255,255,.06),rgba(255,255,255,.025));padding:clamp(2.5rem,5vw,4rem);text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.09);overflow:hidden;
}
.cta-box::before{content:"55";position:absolute;right:20px;bottom:-20px;font-size:180px;font-weight:800;color:rgba(255,255,255,.03);pointer-events:none;line-height:1}
.cta-box h2{color:var(--text-title);font-size:clamp(1.375rem,2.5vw,2rem);font-weight:600;margin-bottom:14px}
.cta-box p{color:var(--text-secondary);font-size:1rem;max-width:560px;margin:0 auto 28px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta-contact{display:flex;justify-content:center;gap:28px;margin-top:34px;padding-top:24px;border-top:1px solid var(--hairline);flex-wrap:wrap;font-size:.875rem;color:var(--text-secondary)}
.cta-contact .item{display:flex;align-items:center;gap:8px}
.cta-contact .item svg{width:16px;height:16px;color:var(--accent-data)}
/* ===== 页脚 ===== */
.site-footer{background:var(--bg-tertiary);border-top:1px solid rgba(255,255,255,.08);padding-top:70px;position:relative;z-index:1}
.footer-brand{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;color:var(--text-title);font-size:1.25rem;font-weight:600}
.footer-brand .brand-55{font-weight:700;color:transparent;-webkit-text-stroke:1px var(--accent-data)}
.footer-brand .brand-divider{width:1px;height:18px;background:rgba(255,255,255,.24)}
.footer-brand .brand-sub{font-size:.9375rem;color:var(--text-secondary)}
.footer-desc{color:var(--text-secondary);font-size:.875rem;line-height:1.8;margin-bottom:16px;max-width:340px}
.footer-domain{font-size:.8125rem;color:var(--text-muted);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.footer-col h4{color:var(--text-title);font-size:.9375rem;font-weight:600;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{color:var(--text-secondary);font-size:.875rem;transition:all .2s;cursor:pointer}
.footer-col a:hover{color:var(--accent-data);padding-left:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;margin-top:48px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.8125rem;color:var(--text-muted)}
.footer-filing{color:var(--text-muted)}
@media(max-width:575.98px){
  .footer-bottom{justify-content:center;text-align:center}
  .cta-contact{flex-direction:column;align-items:center}
}

/* roulang page: article */
:root {
        --bg-deep: #050D16;
        --bg-primary: #0A1E32;
        --bg-secondary: #0D2A45;
        --bg-tertiary: #07121D;
        --glass-bg: rgba(255,255,255,0.045);
        --glass-bg-strong: rgba(255,255,255,0.08);
        --glass-border: rgba(255,255,255,0.10);
        --hairline: rgba(255,255,255,0.07);
        --text-title: #EDF3FA;
        --text-body: rgba(237,243,250,0.86);
        --text-secondary: rgba(237,243,250,0.66);
        --text-muted: rgba(237,243,250,0.45);
        --accent-data: #3BF0D4;
        --accent-action: #FF9D2E;
        --glow-data: 0 0 20px rgba(59,240,212,0.28);
        --glow-action: 0 0 24px rgba(255,157,46,0.42);
        --radius-lg: 16px;
        --radius-md: 12px;
        --radius-pill: 50px;
        --shadow-card: 0 12px 32px rgba(0,0,0,0.22), inset 0 1px 0 rgba(255,255,255,0.08);
        --shadow-hover: 0 20px 48px rgba(0,0,0,0.35), 0 0 0 1px rgba(59,240,212,0.20), inset 0 1px 0 rgba(255,255,255,0.12);
        --font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
    }
    * { margin:0; padding:0; box-sizing:border-box; }
    html { scroll-behavior:smooth; }
    body {
        font-family: var(--font-family);
        background: var(--bg-primary);
        color: var(--text-body);
        line-height: 1.75;
        font-size: 0.9375rem;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
    }
    body.menu-open { overflow:hidden; }
    img { max-width:100%; height:auto; }
    a { color:var(--accent-data); text-decoration:none; transition:color .2s ease-out; }
    a:hover { color:var(--accent-data); }
    .container { max-width:1200px; }
    .btn { border-radius:999px; font-weight:600; padding:10px 28px; transition:all .25s ease-out; border:none; line-height:1.5; }
    .btn:focus-visible { outline:2px solid var(--accent-data); outline-offset:3px; }
    .btn-accent {
        background: linear-gradient(135deg,#FF9D2E,#FFB347);
        color:#0A1E32;
        box-shadow: var(--glow-action), 0 8px 24px rgba(255,157,46,0.20);
    }
    .btn-accent:hover,.btn-accent:focus {
        background: linear-gradient(135deg,#FFA93E,#FFBE58);
        color:#0A1E32;
        transform: translateY(-1px);
        box-shadow: 0 0 32px rgba(255,157,46,0.50), 0 12px 32px rgba(255,157,46,0.25);
    }
    .btn-accent:active { transform: scale(0.97); }
    .btn-ghost {
        background: rgba(255,255,255,0.045);
        border: 1px solid rgba(255,255,255,0.10);
        color: var(--text-title);
        backdrop-filter: blur(12px);
    }
    .btn-ghost:hover {
        background: rgba(255,255,255,0.08);
        border-color: rgba(255,255,255,0.20);
        color: var(--text-title);
        transform: translateY(-1px);
        box-shadow: 0 12px 32px rgba(0,0,0,0.25);
    }
    .btn-ghost:active { transform: scale(0.97); }

    .reading-progress {
        position: fixed; top:0; left:0; height:3px; width:0%;
        background: linear-gradient(90deg,#FF9D2E,#FFB347);
        box-shadow: 0 0 12px rgba(255,157,46,0.55);
        z-index: 9999; transition: width .1s ease-out;
    }

    .top-info {
        background: var(--bg-tertiary);
        border-bottom: 1px solid rgba(255,255,255,0.08);
        min-height: 38px;
        font-size: 0.8125rem;
    }
    .top-info-inner {
        display: flex; align-items: center; justify-content: space-between;
        min-height: 38px;
    }
    .top-domain { color: rgba(237,243,250,0.65); font-family: ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size: 0.8125rem; font-variant-numeric: tabular-nums; letter-spacing: 0.02em; }
    .top-actions { display: flex; gap: 18px; }
    .top-link { color: rgba(237,243,250,0.65); font-size: 0.8125rem; transition: color .2s ease-out; }
    .top-link:hover { color: #fff; }

    .main-nav {
        min-height: 72px;
        padding: 0;
        background: rgba(10,30,50,0.72);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(255,255,255,0.08);
        transition: background .3s ease-out, border-color .3s ease-out, box-shadow .3s ease-out;
        z-index: 1030;
    }
    .main-nav.scrolled {
        background: rgba(10,30,50,0.88);
        backdrop-filter: blur(16px);
        border-bottom-color: rgba(255,255,255,0.10);
        box-shadow: 0 8px 32px rgba(0,0,0,0.30);
    }
    .main-nav .navbar-brand {
        display: flex; align-items: center; gap: 8px;
        padding: 0; margin: 0;
        font-size: 1.25rem; color: var(--text-title); font-weight: 700;
    }
    .main-nav .navbar-brand:hover { color: var(--text-title); }
    .brand-icon {
        width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
        background: rgba(255,157,46,0.12);
        border: 1px solid rgba(255,157,46,0.30);
        border-radius: 10px; color: var(--accent-action);
    }
    .brand-55 { color: var(--accent-action); font-weight: 800; letter-spacing: -0.02em; text-shadow: 0 0 18px rgba(255,157,46,0.45); }
    .brand-main { font-size: 1.125rem; font-weight: 700; letter-spacing: 0.02em; }
    .brand-divider { width: 1px; height: 16px; background: rgba(255,255,255,0.15); }
    .brand-sub { font-size: 0.9375rem; font-weight: 400; color: var(--text-secondary); }
    .main-nav .navbar-nav .nav-link {
        padding: 10px 18px;
        color: var(--text-body);
        font-size: 0.9375rem;
        font-weight: 500;
        position: relative;
        transition: color .2s ease-out;
        border-radius: 8px;
    }
    .main-nav .navbar-nav .nav-link::after {
        content: '';
        position: absolute; left: 18px; right: 18px; bottom: 2px;
        height: 2px;
        background: linear-gradient(90deg, rgba(59,240,212,0), var(--accent-data), var(--accent-action));
        border-radius: 2px;
        opacity: 0;
        transform: scaleX(0.2);
        transition: opacity .25s ease-out, transform .25s ease-out;
    }
    .main-nav .navbar-nav .nav-link:hover, .main-nav .navbar-nav .nav-link:focus { color: #fff; }
    .main-nav .navbar-nav .nav-link:hover::after, .main-nav .navbar-nav .nav-link:focus::after { opacity: 1; transform: scaleX(1); }
    .main-nav .navbar-nav .nav-link.active { color: #fff; }
    .main-nav .navbar-nav .nav-link.active::after { opacity: 1; transform: scaleX(1); }
    .main-nav .nav-cta {
        padding: 8px 24px;
        border-radius: 999px;
        background: linear-gradient(135deg,#FF9D2E,#FFB347);
        color: #0A1E32;
        font-weight: 600;
        font-size: 0.875rem;
        box-shadow: var(--glow-action), 0 8px 24px rgba(255,157,46,0.20);
        border: none;
        margin-left: 8px;
        transition: all .25s ease-out;
        line-height: 1.5;
    }
    .main-nav .nav-cta:hover {
        background: linear-gradient(135deg,#FFA93E,#FFBE58);
        color: #0A1E32;
        transform: translateY(-1px);
        box-shadow: 0 0 32px rgba(255,157,46,0.50), 0 12px 32px rgba(255,157,46,0.25);
    }
    .main-nav .nav-cta:active { transform: scale(0.97); }
    .main-nav .navbar-toggler { border: none; padding: 10px 8px; outline: none; }
    .main-nav .navbar-toggler:focus { box-shadow: none; outline: 2px solid var(--accent-data); outline-offset: 3px; border-radius: 8px; }
    .toggler-bar { display: block; width: 22px; height: 2px; background: var(--text-title); border-radius: 2px; margin: 4px 0; transition: all .25s ease-out; }
    .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
    .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(2) { opacity: 0; }
    .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

    .article-hero {
        position: relative;
        min-height: 320px;
        display: flex; align-items: center;
        padding: 64px 0 48px;
        background: linear-gradient(135deg, rgba(5,13,22,0.88) 0%, rgba(7,18,29,0.76) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        text-align: center;
        border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .article-hero .container { position: relative; z-index: 2; }
    .article-category-badge {
        display: inline-block;
        padding: 5px 16px;
        background: rgba(255,157,46,0.12);
        border: 1px solid rgba(255,157,46,0.35);
        color: var(--accent-action);
        border-radius: 50px;
        font-size: 0.8125rem;
        font-weight: 500;
        letter-spacing: 0.04em;
        margin-bottom: 16px;
    }
    .article-hero h1 {
        font-size: clamp(1.875rem, 4vw, 2.75rem);
        font-weight: 700;
        color: var(--text-title);
        margin: 12px auto 16px;
        max-width: 840px;
        line-height: 1.3;
        text-shadow: 0 2px 20px rgba(0,0,0,0.40);
    }
    .article-meta {
        display: flex; align-items: center; justify-content: center; gap: 16px;
        font-size: 0.875rem; color: var(--text-secondary);
        margin-top: 8px;
    }
    .meta-item { display: inline-flex; align-items: center; gap: 6px; }
    .meta-item svg { stroke: var(--text-muted); }
    .meta-date { font-variant-numeric: tabular-nums; letter-spacing: 0.02em; }
    .meta-divider { width: 4px; height: 4px; background: var(--text-muted); border-radius: 50%; display: inline-block; }

    .breadcrumb {
        --bs-breadcrumb-divider-color: rgba(237,243,250,0.45);
        justify-content: center;
        margin-bottom: 16px;
        font-size: 0.875rem;
    }
    .breadcrumb-item a { color: var(--accent-data); text-decoration: none; }
    .breadcrumb-item a:hover { text-decoration: underline; color: var(--accent-data); }
    .breadcrumb-item.active { color: var(--text-secondary); }

    .article-body-section { padding: 64px 0; background: var(--bg-primary); }
    .article-container { max-width: 720px; }
    .article-content { font-size: 1.0625rem; line-height: 1.75; color: var(--text-body); }
    .article-content h2 {
        font-size: 1.5rem; font-weight: 600;
        color: var(--text-title);
        margin: 2.25rem 0 1rem;
        padding-left: 14px;
        border-left: 3px solid var(--accent-action);
        line-height: 1.4;
    }
    .article-content h3 {
        font-size: 1.25rem; font-weight: 600;
        color: var(--text-title);
        margin: 1.75rem 0 0.875rem;
    }
    .article-content p { margin: 0 0 1.25rem; line-height: 1.75; }
    .article-content blockquote {
        margin: 1.5rem 0;
        padding: 20px;
        background: rgba(255,255,255,0.03);
        border-left: 3px solid var(--accent-data);
        border-radius: 0 12px 12px 0;
        color: var(--text-secondary);
        font-size: 0.9375rem;
    }
    .article-content img { max-width: 100%; height: auto; border-radius: 12px; margin: 24px 0; }
    .article-content ul, .article-content ol { margin: 0 0 1.25rem 1.375rem; padding-left: 0; }
    .article-content li { margin-bottom: 0.5rem; }
    .article-content a { color: var(--accent-data); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color .2s ease-out; }
    .article-content a:hover { border-bottom-color: var(--accent-data); color: var(--accent-data); }
    .article-content pre, .article-content code {
        font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
        font-size: 0.9375rem;
    }
    .article-content pre {
        padding: 20px; overflow: auto;
        background: rgba(255,255,255,0.04);
        border: 1px solid var(--glass-border);
        border-radius: 12px;
        margin: 24px 0;
    }
    .article-content code { background: rgba(255,255,255,0.06); padding: 2px 8px; border-radius: 6px; }
    .article-content pre code { padding: 0; background: transparent; }

    .article-not-found {
        text-align: center;
        padding: 80px 24px;
        background: rgba(255,255,255,0.03);
        border: 1px dashed rgba(255,255,255,0.14);
        border-radius: 16px;
    }
    .not-found-icon { margin-bottom: 16px; color: var(--text-muted); }
    .article-not-found p { color: var(--text-secondary); font-size: 1rem; margin-bottom: 20px; }

    .article-bottom-nav {
        display: flex; flex-wrap: wrap; gap: 12px;
        margin-top: 48px; padding-top: 32px;
        border-top: 1px solid rgba(255,255,255,0.08);
        justify-content: center;
    }
    .article-bottom-nav .btn { min-width: 140px; }

    .related-section { padding: 56px 0; background: var(--bg-deep); }
    .related-section .section-heading { text-align: center; margin-bottom: 40px; }
    .related-section .section-heading h2 { font-size: clamp(1.5rem,2.5vw,2.25rem); font-weight: 600; color: var(--text-title); margin-bottom: 8px; }
    .related-section .section-heading p { color: var(--text-secondary); }
    .related-card {
        display: flex; flex-direction: column; height: 100%;
        background: rgba(255,255,255,0.045);
        border: 1px solid rgba(255,255,255,0.10);
        border-radius: 16px;
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: box-shadow .3s ease-out, transform .3s ease-out, border-color .3s ease-out;
    }
    .related-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
        border-color: rgba(59,240,212,0.20);
    }
    .related-card-img { position: relative; aspect-ratio: 16/9; overflow: hidden; }
    .related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease-out; }
    .related-card:hover .related-card-img img { transform: scale(1.04); }
    .related-card-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0) 50%, rgba(5,13,22,0.55) 100%); }
    .related-card-body { padding: 20px 24px 24px; display: flex; flex-direction: column; flex: 1; }
    .related-card-body h3 { font-size: 1.0625rem; font-weight: 600; color: var(--text-title); margin-bottom: 8px; }
    .related-card-body { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; }
    .related-card-body .related-link { margin-top: auto; padding-top: 12px; font-size: 0.875rem; color: var(--accent-data); }

    .more-section { padding: 64px 0; background: var(--bg-primary); }
    .more-section .section-heading { text-align: center; margin-bottom: 40px; }
    .more-section .section-heading h2 { font-size: clamp(1.5rem,2.5vw,2.25rem); font-weight: 600; color: var(--text-title); margin-bottom: 8px; }
    .more-section .section-heading p { color: var(--text-secondary); }
    .more-card {
        display: flex; flex-direction: column;
        background: rgba(255,255,255,0.045);
        border: 1px solid rgba(255,255,255,0.10);
        border-radius: 16px;
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: all .3s ease-out;
        height: 100%;
    }
    .more-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
        border-color: rgba(59,240,212,0.20);
    }
    .more-card-img { position: relative; aspect-ratio: 16/9; overflow: hidden; }
    .more-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease-out; }
    .more-card:hover .more-card-img img { transform: scale(1.04); }
    .more-card-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0) 60%, rgba(5,13,22,0.60) 100%); }
    .more-card-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
    .more-card-body h3 { font-size: 1.125rem; font-weight: 600; color: var(--text-title); margin-bottom: 8px; }
    .more-card-body p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; flex: 1; }
    .more-card-link { font-size: 0.875rem; color: var(--accent-data); font-weight: 500; }
    .more-card-link:hover { color: var(--accent-action); }
    .more-card-link svg { margin-left: 2px; }

    .contact-cta { padding: 72px 0; background: var(--bg-deep); position: relative; overflow: hidden; }
    .contact-cta::before {
        content: ''; position: absolute; top: -120px; right: -80px; width: 360px; height: 360px;
        background: radial-gradient(circle, rgba(59,240,212,0.10) 0%, transparent 70%);
        border-radius: 50%;
    }
    .contact-cta .container { position: relative; z-index: 2; }
    .contact-cta-card {
        background: rgba(255,255,255,0.045);
        border: 1px solid rgba(255,255,255,0.10);
        border-radius: 16px;
        padding: 40px;
        backdrop-filter: blur(12px);
        box-shadow: var(--shadow-card);
    }
    .contact-cta-card h2 { font-size: clamp(1.375rem, 2.5vw, 2rem); font-weight: 600; color: var(--text-title); margin-bottom: 12px; }
    .contact-cta-card p { color: var(--text-secondary); margin-bottom: 24px; max-width: 520px; }
    .contact-info-list { list-style: none; padding: 0; margin: 24px 0 0; }
    .contact-info-list li { display: flex; align-items: center; gap: 10px; padding: 8px 0; color: var(--text-secondary); font-size: 0.9375rem; }
    .contact-info-list li svg { color: var(--accent-data); flex-shrink: 0; }
    .cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

    .site-footer {
        background: var(--bg-tertiary);
        border-top: 1px solid rgba(255,255,255,0.08);
        padding: 56px 0 0;
    }
    .footer-brand {
        display: inline-flex; align-items: center; gap: 8px;
        font-size: 1.125rem; color: var(--text-title) !important; font-weight: 700;
        text-decoration: none; margin-bottom: 12px;
    }
    .footer-brand .brand-55 { color: var(--accent-action); }
    .footer-brand .brand-divider { width: 1px; height: 14px; background: rgba(255,255,255,0.15); }
    .footer-brand .brand-sub { font-size: 0.9375rem; color: var(--text-secondary); font-weight: 400; }
    .footer-desc { color: var(--text-secondary); font-size: 0.875rem; margin: 12px 0 8px; max-width: 300px; line-height: 1.7; }
    .footer-domain { color: var(--text-muted); font-size: 0.8125rem; font-family: ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; }
    .footer-col h4 { font-size: 0.9375rem; font-weight: 600; color: var(--text-title); margin-bottom: 16px; }
    .footer-col ul { list-style: none; padding: 0; margin: 0; }
    .footer-col li { margin-bottom: 8px; }
    .footer-col a { color: var(--text-secondary); font-size: 0.875rem; transition: color .2s ease-out, padding-left .2s ease-out; }
    .footer-col a:hover { color: var(--accent-data); padding-left: 4px; }
    .footer-col span { color: var(--text-secondary); font-size: 0.875rem; }
    .footer-bottom {
        display: flex; justify-content: center; align-items: center; gap: 20px;
        border-top: 1px solid rgba(255,255,255,0.07);
        padding: 20px 0 24px;
        margin-top: 40px;
        color: var(--text-muted); font-size: 0.8125rem;
    }
    .footer-filing { color: var(--text-muted); }

    :focus-visible {
        outline: 2px solid var(--accent-data);
        outline-offset: 3px;
        border-radius: 4px;
    }

    @media (max-width: 991.98px) {
        .main-nav .navbar-collapse {
            background: var(--bg-primary);
            border-radius: 0 0 16px 16px;
            padding: 16px;
            box-shadow: 0 16px 32px rgba(0,0,0,0.35);
            border: 1px solid rgba(255,255,255,0.08);
            border-top: none;
            margin-top: 8px;
        }
        .main-nav .navbar-nav .nav-link { font-size: 1rem; line-height: 44px; padding: 4px 16px; }
        .main-nav .navbar-nav .nav-link::after { display: none; }
        .main-nav .nav-cta { margin: 12px 0 8px; width: 100%; text-align: center; }
        .article-bottom-nav { flex-direction: column; align-items: stretch; }
        .article-bottom-nav .btn { width: 100%; }
    }
    @media (max-width: 767.98px) {
        .top-actions a:not(:last-child) { display: none; }
        .article-hero { min-height: 280px; padding: 48px 0 36px; }
        .article-meta { flex-wrap: wrap; gap: 10px; }
        .contact-cta-card { padding: 24px; }
        .cta-actions { flex-direction: column; }
        .cta-actions .btn { width: 100%; text-align: center; }
        .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    }
    @media (max-width: 575.98px) {
        .article-bottom-nav .btn { min-width: 100%; }
        .article-content { font-size: 1rem; }
        .article-content h2 { font-size: 1.375rem; }
    }

/* roulang page: category2 */
:root {
  --bg-deep: #050D16;
  --bg-primary: #0A1E32;
  --bg-secondary: #0D2A45;
  --bg-tertiary: #07121D;
  --glass-bg: rgba(255,255,255,0.045);
  --glass-bg-strong: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.10);
  --hairline: rgba(255,255,255,0.07);
  --text-title: #EDF3FA;
  --text-body: rgba(237,243,250,0.86);
  --text-secondary: rgba(237,243,250,0.66);
  --text-muted: rgba(237,243,250,0.45);
  --accent-data: #3BF0D4;
  --accent-action: #FF9D2E;
  --glow-data: 0 0 20px rgba(59,240,212,0.28);
  --glow-action: 0 0 24px rgba(255,157,46,0.42);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 12px 32px rgba(0,0,0,0.22), inset 0 1px 0 rgba(255,255,255,0.08);
  --shadow-hover: 0 20px 48px rgba(0,0,0,0.35), 0 0 0 1px rgba(59,240,212,0.20), inset 0 1px 0 rgba(255,255,255,0.12);
  --shadow-btn: 0 0 24px rgba(255,157,46,0.40), 0 8px 24px rgba(255,157,46,0.20);
  --transition: 0.25s ease-out;
  --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background: var(--bg-deep);
  color: var(--text-body);
  line-height: 1.75;
  font-size: 0.9375rem;
  overflow-x: hidden;
}

a {
  color: var(--accent-data);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-data);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-data);
  outline-offset: 3px;
  border-radius: 4px;
}

img {
  max-width: 100%;
  height: auto;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-title);
  line-height: 1.35;
}

.container {
  max-width: 1200px;
  width: 100%;
  padding-left: 24px;
  padding-right: 24px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 576px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

.section {
  padding: clamp(3.5rem, 7vw, 6rem) 0;
  position: relative;
}

/* ===== Top Bar ===== */
.top-bar {
  background: var(--bg-tertiary);
  height: 38px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 12px;
  color: rgba(237,243,250,0.65);
}

.top-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar .top-domain {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.top-bar .top-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.top-bar .top-actions a {
  color: rgba(237,243,250,0.65);
  font-size: 12px;
  text-decoration: none;
  transition: color 0.2s ease;
}

.top-bar .top-actions a:hover {
  color: #ffffff;
}

@media (max-width: 768px) {
  .top-bar .top-actions a:not(.top-mobile-only) {
    display: none;
  }
  .top-bar .top-actions a.top-mobile-only {
    display: inline-block;
  }
}

.top-mobile-only {
  display: none;
}

@media (max-width: 768px) {
  .top-mobile-only {
    display: inline-block;
  }
}

/* ===== Main Nav ===== */
.main-nav {
  background: rgba(10, 30, 50, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.10);
  min-height: 72px;
  padding: 0;
  z-index: 1040;
}

.main-nav .navbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  margin: 0;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(59,240,212,0.12);
  border: 1px solid rgba(59,240,212,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-data);
}

.brand-main {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-title);
  letter-spacing: -0.02em;
}

.brand-55 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-action);
  -webkit-text-stroke: 0px;
  text-shadow: 0 0 12px rgba(255,157,46,0.35);
  letter-spacing: -0.03em;
  margin-right: 1px;
}

.brand-divider {
  width: 1px;
  height: 20px;
  background: rgba(255,255,255,0.18);
  margin: 0 4px;
}

.brand-sub {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
}

.main-nav .nav-link {
  color: var(--text-body);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 16px !important;
  border-radius: var(--radius-pill);
  transition: color var(--transition), background var(--transition);
  position: relative;
  margin: 0 2px;
}

.main-nav .nav-link:hover {
  color: #ffffff;
  background: rgba(255,255,255,0.05);
}

.main-nav .nav-link.active {
  color: #ffffff;
}

.main-nav .nav-link.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--accent-data) 0%, var(--accent-action) 100%);
  box-shadow: 0 0 12px rgba(59,240,212,0.5);
}

.nav-cta {
  background: linear-gradient(135deg, #FF9D2E 0%, #FFB84D 100%);
  color: #0A1E32 !important;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-pill) !important;
  padding: 8px 22px !important;
  margin-left: 12px;
  box-shadow: var(--shadow-btn);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition) !important;
}

.nav-cta:hover {
  color: #0A1E32 !important;
  background: linear-gradient(135deg, #FFB84D 0%, #FF9D2E 100%);
  filter: brightness(1.08);
  box-shadow: 0 0 30px rgba(255,157,46,0.55), 0 8px 28px rgba(255,157,46,0.28);
  transform: scale(1.02);
}

.nav-cta:active {
  transform: scale(0.97);
}

.navbar-toggler {
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 10px;
  padding: 8px 12px;
  background: transparent;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.toggler-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-title);
  border-radius: 2px;
  transition: transform 0.2s ease;
}

.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(2) {
  opacity: 0;
}

.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 991.98px) {
  .main-nav .navbar-collapse {
    background: var(--bg-primary);
    border-radius: 0 0 16px 16px;
    padding: 12px 16px;
    margin-top: 4px;
    border-bottom: 1px solid var(--hairline);
  }
  .main-nav .nav-link {
    padding: 12px 16px !important;
    border-radius: 10px;
    font-size: 16px;
  }
  .main-nav .nav-link.active::after {
    left: 16px;
    right: auto;
    top: 50%;
    bottom: auto;
    width: 3px;
    height: 20px;
    transform: translateY(-50%);
  }
  .nav-cta {
    margin-left: 0;
    margin-top: 8px;
    text-align: center;
  }
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  padding: clamp(4rem, 7vw, 6.5rem) 0;
  background: linear-gradient(to bottom, var(--bg-primary) 0%, var(--bg-deep) 100%);
  overflow: hidden;
}

.page-hero .hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.22;
  z-index: 1;
}

.page-hero .hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 20%, rgba(59,240,212,0.08) 0%, transparent 50%), linear-gradient(to right, rgba(5,13,22,0.92) 0%, rgba(10,30,50,0.72) 100%);
  z-index: 2;
}

.page-hero .hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.page-hero .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(59,240,212,0.12);
  border: 1px solid rgba(59,240,212,0.30);
  border-radius: var(--radius-pill);
  padding: 6px 18px;
  font-size: 13px;
  color: var(--accent-data);
  margin-bottom: 24px;
}

.page-hero h1 {
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

.page-hero .hero-lead {
  font-size: 1.0625rem;
  max-width: 620px;
  margin: 0 auto 32px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.hero-meta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  margin-top: 24px;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.hero-meta-item .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-data);
  box-shadow: var(--glow-data);
}

.page-hero .hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn-accent {
  background: linear-gradient(135deg, #FF9D2E 0%, #FFB84D 100%);
  color: #0A1E32 !important;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-pill);
  padding: 10px 28px;
  box-shadow: var(--shadow-btn);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-accent:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 32px rgba(255,157,46,0.55), 0 8px 28px rgba(255,157,46,0.28);
  transform: scale(1.02);
  color: #0A1E32 !important;
}

.btn-accent:active {
  transform: scale(0.97);
}

.btn-ghost {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text-title) !important;
  border-radius: var(--radius-pill);
  padding: 10px 28px;
  font-weight: 500;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(59,240,212,0.4);
  transform: translateY(-1px);
}

.btn-ghost:active {
  transform: scale(0.97);
}

.btn-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 500;
  color: var(--accent-data);
  font-size: 14px;
}

.btn-link-arrow:hover {
  color: var(--accent-action);
}

/* ===== Section Headings ===== */
.section-head {
  margin-bottom: 48px;
}

.section-head .section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-data);
  margin-bottom: 12px;
}

.section-head .section-eyebrow::before {
  content: '';
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-data), transparent);
  border-radius: 2px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.section-head .section-desc {
  color: var(--text-secondary);
  max-width: 680px;
  font-size: 0.9375rem;
  line-height: 1.75;
}

.section-head.center {
  text-align: center;
}

.section-head.center .section-eyebrow::before {
  display: none;
}

.section-head.center .section-desc {
  margin: 0 auto;
}

/* ===== Glass Cards ===== */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
}

@supports not (backdrop-filter: blur(12px)) {
  .glass-card {
    background: rgba(10,30,50,0.90);
  }
}

.glass-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

/* ===== Overview Section ===== */
.overview-section {
  background: var(--bg-primary);
  position: relative;
}

.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.overview-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.overview-media img {
  width: 100%;
  display: block;
  min-height: 320px;
  object-fit: cover;
}

.overview-media::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(to top right, rgba(5,13,22,0.2) 0%, transparent 60%);
  border: 1px solid rgba(255,255,255,0.08);
}

.overview-content h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.overview-content p {
  margin-bottom: 16px;
  color: var(--text-body);
  line-height: 1.8;
}

.overview-points {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.overview-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.overview-points li .check {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(59,240,212,0.14);
  color: var(--accent-data);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  margin-top: 2px;
}

@media (max-width: 991.98px) {
  .overview-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 576px) {
  .overview-points {
    grid-template-columns: 1fr;
  }
}

/* ===== Solutions Cards ===== */
.solutions-section {
  background: var(--bg-deep);
  position: relative;
}

.solutions-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 24px;
  margin-bottom: 24px;
}

.solution-card-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}

.solution-card-main:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.solution-card-main .media {
  position: relative;
  overflow: hidden;
}

.solution-card-main .media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.solution-card-main .media .media-overlay {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(5,13,22,0.72);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(59,240,212,0.25);
  color: var(--accent-data);
  font-size: 12px;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-weight: 500;
}

.solution-card-main .card-body {
  padding: 28px;
}

.solution-card-main .card-body .card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(59,240,212,0.12);
  border: 1px solid rgba(59,240,212,0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-data);
  margin-bottom: 16px;
}

.solution-card-main .card-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.solution-card-main .card-body p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.75;
  margin-bottom: 16px;
}

.solution-card-small {
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.solution-card-small:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.solution-card-small .card-top {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.solution-card-small .small-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255,157,46,0.12);
  border: 1px solid rgba(255,157,46,0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-action);
  flex-shrink: 0;
}

.solution-card-small h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.solution-card-small p {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  line-height: 1.6;
  margin-bottom: 0;
}

.solution-card-small .card-link {
  margin-top: 4px;
}

/* Bottom row 3 cards */
.solutions-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.solution-card-mini {
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--hairline);
  padding: 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.solution-card-mini::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59,240,212,0.4), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.solution-card-mini:hover {
  background: rgba(255,255,255,0.06);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.solution-card-mini:hover::after {
  opacity: 1;
}

.solution-card-mini .mini-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(59,240,212,0.10);
  border: 1px solid rgba(59,240,212,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-data);
  margin-bottom: 14px;
}

.solution-card-mini h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.solution-card-mini p {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  line-height: 1.65;
  margin-bottom: 0;
}

.solution-banner-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(59,240,212,0.08) 0%, rgba(255,157,46,0.05) 100%);
  border: 1px solid rgba(59,240,212,0.15);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.solution-banner-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.solution-banner-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0;
}

@media (max-width: 991.98px) {
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  .solutions-row {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 992px) and (max-width: 1199px) {
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  .solutions-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .solution-banner-card {
    grid-column: span 2;
  }
}

/* ===== Process Section ===== */
.process-section {
  background: var(--bg-primary);
  position: relative;
}

.process-section .section-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.10;
  z-index: 1;
}

.process-section .container {
  position: relative;
  z-index: 2;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.process-step {
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.045);
  border: 1px solid var(--glass-border);
  padding: 28px 24px;
  position: relative;
  transition: all var(--transition);
}

.process-step:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.08);
  border-color: rgba(59,240,212,0.3);
}

.process-step .step-num {
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(59,240,212,0.25);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  margin-bottom: 16px;
  font-family: var(--font-stack);
  letter-spacing: -0.03em;
}

.process-step .step-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(59,240,212,0.10);
  border: 1px solid rgba(59,240,212,0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-data);
  margin-bottom: 14px;
}

.process-step h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.process-step p {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  line-height: 1.65;
  margin-bottom: 0;
}

.process-step .step-line {
  position: absolute;
  top: 50%;
  right: -20px;
  width: 20px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-action), transparent);
}

@media (max-width: 991.98px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .process-step .step-line {
    display: none;
  }
}

@media (max-width: 576px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-deep);
}

.faq-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item:hover {
  border-color: rgba(255,255,255,0.16);
}

.faq-item.active {
  background: rgba(255,255,255,0.06);
  border-left: 3px solid var(--accent-action);
}

.faq-item .faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-title);
  transition: color var(--transition);
  user-select: none;
}

.faq-item .faq-question:hover {
  color: var(--accent-data);
}

.faq-item .faq-icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-left: 12px;
}

.faq-item .faq-icon::before,
.faq-item .faq-icon::after {
  content: '';
  position: absolute;
  background: var(--accent-data);
  border-radius: 2px;
  transition: transform 0.25s ease;
}

.faq-item .faq-icon::before {
  top: 9px;
  left: 2px;
  width: 16px;
  height: 2px;
}

.faq-item .faq-icon::after {
  top: 2px;
  left: 9px;
  width: 2px;
  height: 16px;
}

.faq-item.active .faq-icon::after {
  transform: scaleY(0);
}

.faq-item .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-item .faq-answer p {
  padding: 0 20px 18px;
  font-size: 0.875rem;
  color: var(--text-body);
  line-height: 1.75;
  margin: 0;
}

.faq-guide-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(255,157,46,0.10) 0%, rgba(255,157,46,0.03) 100%);
  border: 1px solid rgba(255,157,46,0.20);
  padding: 32px 28px;
  position: sticky;
  top: 100px;
}

.faq-guide-card .guide-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(255,157,46,0.15);
  border: 1px solid rgba(255,157,46,0.30);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-action);
  margin-bottom: 18px;
}

.faq-guide-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.faq-guide-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.faq-guide-card .btn-accent {
  width: 100%;
  justify-content: center;
}

@media (max-width: 991.98px) {
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .faq-guide-card {
    position: static;
  }
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.cta-section .section-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
  z-index: 1;
}

.cta-section .section-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(5,13,22,0.94), rgba(10,30,50,0.78));
  z-index: 2;
}

.cta-section .container {
  position: relative;
  z-index: 3;
}

.cta-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.cta-info h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  font-weight: 600;
  margin-bottom: 16px;
}

.cta-info p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.75;
  max-width: 480px;
}

.cta-info-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cta-info-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.875rem;
  color: var(--text-body);
}

.cta-info-list li .info-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(59,240,212,0.10);
  border: 1px solid rgba(59,240,212,0.20);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-data);
  flex-shrink: 0;
}

.cta-form-card {
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-card);
  padding: 32px;
}

@supports not (backdrop-filter: blur(12px)) {
  .cta-form-card {
    background: rgba(10,30,50,0.90);
  }
}

.cta-form-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.cta-form-card .form-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 24px;
}

.cta-form-card .form-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.cta-form-card .form-control {
  background: #0B1B2C;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  height: 46px;
  padding: 10px 16px;
  color: var(--text-title);
  transition: border-color var(--transition), box-shadow var(--transition);
  font-size: 0.9375rem;
}

.cta-form-card textarea.form-control {
  height: auto;
  min-height: 100px;
  resize: vertical;
}

.cta-form-card .form-control::placeholder {
  color: var(--text-muted);
}

.cta-form-card .form-control:focus {
  background: #0D2035;
  border-color: var(--accent-data);
  box-shadow: 0 0 0 3px rgba(59,240,212,0.15);
  color: var(--text-title);
}

.cta-form-card .btn-accent {
  width: 100%;
  height: 48px;
  justify-content: center;
  font-size: 1rem;
}

.cta-form-card .privacy-note {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}

@media (max-width: 991.98px) {
  .cta-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-tertiary);
  border-top: 1px solid var(--hairline);
  padding: 56px 0 0;
}

.site-footer .footer-top {
  padding-bottom: 40px;
}

.site-footer .footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.footer-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
  max-width: 320px;
  margin-bottom: 16px;
}

.footer-domain {
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  font-size: 0.8125rem;
  padding: 4px 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  display: inline-block;
}

.footer-col h4 {
  color: var(--text-title);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a,
.footer-col ul span {
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color var(--transition);
  cursor: default;
}

.footer-col ul a:hover {
  color: var(--accent-data);
}

.footer-bottom {
  border-top: 1px solid var(--hairline);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-filing {
  color: rgba(237,243,250,0.35);
}

@media (max-width: 768px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .site-footer .footer-top {
    gap: 24px;
  }
}

/* ===== Utility ===== */
.text-gradient {
  background: linear-gradient(135deg, var(--accent-data) 0%, var(--accent-action) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--hairline), transparent);
  border: none;
  margin: 0;
}

/* ===== Reveal animation ===== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-up {
  animation: fadeUp 0.6s ease-out both;
}

.delay-1 {
  animation-delay: 0.15s;
}

.delay-2 {
  animation-delay: 0.3s;
}

.delay-3 {
  animation-delay: 0.45s;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* roulang page: category3 */
:root {
            --bg-deep: #050D16;
            --bg-primary: #0A1E32;
            --bg-secondary: #0D2A45;
            --bg-tertiary: #07121D;
            --glass-bg: rgba(255, 255, 255, 0.045);
            --glass-bg-strong: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.10);
            --hairline: rgba(255, 255, 255, 0.07);
            --text-title: #EDF3FA;
            --text-body: rgba(237, 243, 250, 0.86);
            --text-secondary: rgba(237, 243, 250, 0.66);
            --text-muted: rgba(237, 243, 250, 0.45);
            --accent-data: #3BF0D4;
            --accent-action: #FF9D2E;
            --glow-data: 0 0 20px rgba(59, 240, 212, 0.28);
            --glow-action: 0 0 24px rgba(255, 157, 46, 0.42);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background: var(--bg-deep);
            color: var(--text-body);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
        }

        a {
            color: var(--text-body);
            text-decoration: none;
            transition: color 0.25s ease-out;
        }

        a:hover {
            color: #ffffff;
        }

        button,
        input,
        textarea {
            font-family: var(--font-stack);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-data);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 顶部信息条 ===== */
        .top-info-bar {
            background: var(--bg-tertiary);
            height: 38px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .top-info-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .top-domain {
            font-size: 12px;
            color: rgba(237, 243, 250, 0.65);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.5px;
        }

        .top-actions {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .top-actions a {
            font-size: 12px;
            color: rgba(237, 243, 250, 0.65);
            transition: color 0.25s ease-out;
        }

        .top-actions a:hover {
            color: var(--accent-data);
        }

        @media (max-width: 768px) {
            .top-actions a:not(:last-child) {
                display: none;
            }
        }

        /* ===== 主导航 ===== */
        .main-nav {
            background: var(--bg-primary);
            min-height: 72px;
            padding-top: 8px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--hairline);
            transition: background 0.3s ease-out, box-shadow 0.3s ease-out;
        }

        .main-nav.is-scrolled {
            background: rgba(10, 30, 50, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--glass-border);
            border-radius: 10px;
            color: var(--accent-data);
            flex-shrink: 0;
        }

        .brand-main {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-title);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .brand-55 {
            color: var(--accent-action);
            text-shadow: 0 0 12px rgba(255, 157, 46, 0.35);
            font-variant-numeric: tabular-nums;
        }

        .brand-divider {
            width: 1px;
            height: 20px;
            background: rgba(255, 255, 255, 0.2);
            margin: 0 2px;
        }

        .brand-sub {
            font-size: 14px;
            color: var(--text-secondary);
            letter-spacing: 1px;
        }

        .navbar-toggler {
            border: none;
            padding: 8px;
            display: flex;
            flex-direction: column;
            gap: 5px;
            background: transparent;
        }

        .toggler-bar {
            width: 24px;
            height: 2px;
            background: var(--text-title);
            border-radius: 2px;
            transition: transform 0.25s ease-out, opacity 0.25s ease-out;
        }

        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(2) {
            opacity: 0;
        }

        .navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .nav-link {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 14px !important;
            border-radius: var(--radius-sm);
            position: relative;
            transition: color 0.25s ease-out;
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-data), var(--accent-action));
            opacity: 0;
            transition: opacity 0.25s ease-out;
        }

        .nav-link:hover,
        .nav-link.active {
            color: #ffffff;
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            opacity: 1;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 36px;
            padding: 0 22px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, var(--accent-action), #F0811A);
            border: none;
            color: #081826 !important;
            font-size: 14px;
            font-weight: 600;
            box-shadow: var(--glow-action);
            margin-left: 12px;
            transition: box-shadow 0.25s ease-out, transform 0.2s ease-out, filter 0.25s ease-out;
        }

        .nav-cta:hover {
            filter: brightness(1.08);
            box-shadow: 0 0 30px rgba(255, 157, 46, 0.55), 0 8px 24px rgba(255, 157, 46, 0.22);
            color: #081826 !important;
        }

        .nav-cta::after {
            display: none;
        }

        .nav-cta:active {
            transform: scale(0.97);
        }

        @media (max-width: 767px) {
            .navbar-collapse {
                background: var(--bg-secondary);
                border-radius: var(--radius-md);
                padding: 12px 16px;
                margin-top: 12px;
                border: 1px solid var(--glass-border);
            }

            .nav-link {
                display: block;
                line-height: 48px;
                padding: 0 12px !important;
                font-size: 16px;
            }

            .nav-link::after {
                display: none;
            }

            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                width: 100%;
                height: 44px;
            }
        }

        /* ===== 分类页 Hero ===== */
        .cat-hero {
            position: relative;
            padding: 80px 0 70px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            border-bottom: 1px solid var(--hairline);
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(10, 30, 50, 0.55) 0%, rgba(5, 13, 22, 0.82) 70%, var(--bg-deep) 100%);
        }

        .cat-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .breadcrumb-nav a {
            color: var(--text-secondary);
        }

        .breadcrumb-nav a:hover {
            color: var(--accent-data);
        }

        .breadcrumb-nav .sep {
            color: var(--text-muted);
            font-size: 12px;
        }

        .cat-hero h1 {
            font-size: clamp(1.875rem, 4vw, 3rem);
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: 1px;
        }

        .cat-hero .hero-sub {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            max-width: 480px;
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .cat-hero {
                padding: 50px 0 44px;
            }
        }

        /* ===== 分类页简介区（上半区） ===== */
        .intro-section {
            padding: clamp(3.5rem, 7vw, 6rem) 0;
            background: var(--bg-primary);
        }

        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.08);
            border: 1px solid var(--glass-border);
            background: var(--glass-bg);
        }

        .intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            border-radius: 0;
            min-height: 260px;
        }

        .intro-content {
            padding-left: 20px;
        }

        .intro-content .eyebrow {
            display: inline-block;
            font-size: 13px;
            color: var(--accent-data);
            background: rgba(59, 240, 212, 0.1);
            border: 1px solid rgba(59, 240, 212, 0.25);
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .intro-content h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .intro-content p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        .intro-content .intro-list {
            list-style: none;
            padding: 0;
            margin: 18px 0 0;
        }

        .intro-content .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 10px;
            padding: 10px 14px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            transition: border-color 0.25s ease-out, background 0.25s ease-out;
        }

        .intro-content .intro-list li:hover {
            border-color: rgba(59, 240, 212, 0.35);
            background: var(--glass-bg-strong);
        }

        .intro-content .intro-list svg {
            flex-shrink: 0;
            margin-top: 3px;
            color: var(--accent-data);
        }

        @media (max-width: 991px) {
            .intro-content {
                padding-left: 0;
                margin-top: 28px;
            }
        }

        /* ===== 分类页 3 列卡片区（下半区） ===== */
        .info-cards-section {
            padding: clamp(3.5rem, 7vw, 6rem) 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--hairline);
        }

        .section-head {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 10px;
        }

        .section-head p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
        }

        /* 全宽卡 */
        .wide-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
            margin-bottom: 20px;
            transition: box-shadow 0.3s ease-out, border-color 0.3s ease-out;
        }

        .wide-card:hover {
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(59, 240, 212, 0.2);
            border-color: rgba(59, 240, 212, 0.3);
        }

        .wide-card .card-num {
            font-size: 56px;
            font-weight: 700;
            color: rgba(237, 243, 250, 0.12);
            line-height: 1;
            font-variant-numeric: tabular-nums;
            flex-shrink: 0;
            margin-right: 8px;
        }

        .wide-card .card-body-text {
            flex: 1;
            padding: 0 12px;
        }

        .wide-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .wide-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 720px;
        }

        .wide-card .card-link {
            white-space: nowrap;
            font-size: 14px;
            color: var(--accent-data);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(59, 240, 212, 0.3);
            transition: background 0.25s ease-out, border-color 0.25s ease-out;
            flex-shrink: 0;
        }

        .wide-card .card-link:hover {
            background: rgba(59, 240, 212, 0.12);
            border-color: var(--accent-data);
            color: var(--accent-data);
        }

        /* 双列卡 */
        .split-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 28px;
            height: 100%;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
            position: relative;
            overflow: hidden;
            transition: box-shadow 0.3s ease-out, border-color 0.3s ease-out, transform 0.25s ease-out;
        }

        .split-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(180deg, var(--accent-data), var(--accent-action));
            opacity: 0;
            transition: opacity 0.3s ease-out;
        }

        .split-card:hover {
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(59, 240, 212, 0.2);
            border-color: rgba(59, 240, 212, 0.3);
            transform: translateY(-4px);
        }

        .split-card:hover::before {
            opacity: 1;
        }

        .split-card .card-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(59, 240, 212, 0.12);
            border: 1px solid rgba(59, 240, 212, 0.25);
            border-radius: var(--radius-md);
            color: var(--accent-data);
            margin-bottom: 20px;
        }

        .split-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .split-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .split-card .card-tags {
            margin-top: 16px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .split-card .tag {
            display: inline-block;
            font-size: 12px;
            color: var(--accent-data);
            background: rgba(59, 240, 212, 0.1);
            border: 1px solid rgba(59, 240, 212, 0.2);
            border-radius: var(--radius-pill);
            padding: 3px 12px;
        }

        @media (max-width: 992px) {
            .wide-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
            }

            .wide-card .card-link {
                margin-top: 4px;
            }

            .split-card {
                margin-bottom: 16px;
            }
        }

        /* ===== FAQ 区 ===== */
        .faq-section {
            padding: clamp(3.5rem, 7vw, 6rem) 0;
            background: var(--bg-primary);
        }

        .faq-section .section-head {
            text-align: left;
            margin-bottom: 36px;
        }

        .faq-section .section-head h2 {
            margin-bottom: 8px;
        }

        .faq-section .section-head p {
            margin: 0;
            max-width: 480px;
        }

        .accordion {
            background: transparent;
        }

        .accordion-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--glass-border) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .accordion-item:last-of-type {
            margin-bottom: 0;
        }

        .accordion-button {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-title);
            font-size: 15px;
            font-weight: 500;
            padding: 18px 20px;
            border-radius: var(--radius-md) !important;
            box-shadow: none !important;
            border: none;
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23EDF3FA'%3E%3Cpath fill-rule='evenodd' d='M8 2a1 1 0 0 1 1 1v4h4a1 1 0 1 1 0 2H9v4a1 1 0 1 1-2 0V9H3a1 1 0 1 1 0-2h4V3a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
            transition: transform 0.25s ease-out;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-title);
            box-shadow: none;
            border-left: 3px solid var(--accent-action);
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23FF9D2E'%3E%3Cpath fill-rule='evenodd' d='M8 2a1 1 0 0 1 1 1v4h4a1 1 0 1 1 0 2H9v4a1 1 0 1 1-2 0V9H3a1 1 0 1 1 0-2h4V3a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
        }

        .accordion-body {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-body);
            padding: 8px 20px 20px;
            border-top: 1px solid var(--hairline);
        }

        .faq-side-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
            margin-top: 8px;
        }

        .faq-side-card h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .faq-side-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .faq-side-card .btn {
            width: 100%;
            height: 44px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, var(--accent-action), #F0811A);
            border: none;
            color: #081826;
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(255, 157, 46, 0.3);
            transition: box-shadow 0.25s ease-out, filter 0.25s ease-out, transform 0.2s ease-out;
        }

        .faq-side-card .btn:hover {
            filter: brightness(1.08);
            box-shadow: var(--glow-action);
        }

        .faq-side-card .btn:active {
            transform: scale(0.97);
        }

        @media (max-width: 991px) {
            .faq-side-card {
                margin-top: 24px;
            }
        }

        /* ===== CTA 区 ===== */
        .cta-section {
            padding: clamp(3rem, 6vw, 5rem) 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--hairline);
        }

        .cta-card {
            position: relative;
            background: linear-gradient(135deg, rgba(255, 157, 46, 0.08), rgba(59, 240, 212, 0.05)), var(--bg-primary);
            border: 1px solid rgba(255, 157, 46, 0.2);
            border-radius: 20px;
            padding: 48px 40px;
            text-align: center;
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.08);
            overflow: hidden;
        }

        .cta-card::before {
            content: '55';
            position: absolute;
            right: -10px;
            bottom: -30px;
            font-size: 160px;
            font-weight: 700;
            color: rgba(237, 243, 250, 0.04);
            line-height: 1;
            pointer-events: none;
        }

        .cta-card h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 14px;
        }

        .cta-card p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 28px;
        }

        .cta-card .btn-group-custom {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, var(--accent-action), #F0811A);
            border: none;
            color: #081826 !important;
            font-size: 15px;
            font-weight: 600;
            box-shadow: var(--glow-action);
            transition: box-shadow 0.25s ease-out, filter 0.25s ease-out, transform 0.2s ease-out;
        }

        .btn-accent:hover {
            filter: brightness(1.08);
            box-shadow: 0 0 32px rgba(255, 157, 46, 0.55), 0 8px 24px rgba(255, 157, 46, 0.25);
        }

        .btn-accent:active {
            transform: scale(0.97);
        }

        .btn-glass {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-pill);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            color: var(--text-title);
            font-size: 15px;
            font-weight: 500;
            transition: background 0.25s ease-out, border-color 0.25s ease-out, box-shadow 0.25s ease-out;
        }

        .btn-glass:hover {
            background: var(--glass-bg-strong);
            border-color: rgba(59, 240, 212, 0.4);
            color: var(--accent-data);
        }

        @media (max-width: 576px) {
            .cta-card {
                padding: 32px 20px;
            }

            .btn-group-custom {
                flex-direction: column;
                gap: 12px;
            }

            .btn-accent,
            .btn-glass {
                width: 100%;
                height: 48px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-tertiary);
            border-top: 1px solid var(--hairline);
            padding-top: 60px;
        }

        .footer-top {
            padding-bottom: 40px;
            border-bottom: 1px solid var(--hairline);
            margin-bottom: 24px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 24px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .footer-brand .brand-main {
            font-size: 22px;
        }

        .footer-brand .brand-divider {
            height: 16px;
        }

        .footer-brand .brand-sub {
            font-size: 13px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
            max-width: 340px;
        }

        .footer-domain {
            font-size: 13px;
            color: var(--text-muted);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.5px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: color 0.25s ease-out;
        }

        .footer-col ul li a:hover {
            color: var(--accent-data);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            padding: 20px 0 24px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-filing {
            color: var(--text-muted);
        }

        @media (max-width: 767px) {
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }

            .footer-col {
                margin-bottom: 24px;
            }
        }

        /* ===== 通用响应式 ===== */
        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .cat-hero h1 {
                font-size: 1.75rem;
            }

            .breadcrumb-nav {
                font-size: 12px;
                gap: 6px;
            }

            .wide-card .card-num {
                font-size: 44px;
            }

            .split-card {
                padding: 20px;
            }
        }