/* roulang page: index */
:root{
  --ink-950:#0B0E13;--ink-900:#101419;--ink-800:#181D25;--ink-700:#232A35;
  --line-dark:rgba(255,255,255,.08);--grid-dark:rgba(255,255,255,.045);
  --neon-500:#17E9A3;--neon-600:#0FC98A;--neon-soft:rgba(23,233,163,.12);
  --coral-500:#FF6A3D;--coral-600:#E8552A;
  --mist-50:#F6F7F9;--mist-100:#EDEFF3;--white:#FFFFFF;
  --text-900:#14171C;--text-600:#565E6B;--text-400:#8A929E;--border:#E4E7EC;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  --sh-1:0 1px 2px rgba(11,14,19,.05),0 6px 18px rgba(11,14,19,.06);
  --sh-2:0 12px 32px rgba(11,14,19,.12);
  --sp-section:clamp(3.5rem,2rem + 5vw,6.5rem);
  --ease:cubic-bezier(.22,.7,.3,1);--dur:.22s;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.75;color:var(--text-900);background:var(--mist-50);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
button{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container-xl{max-width:1240px}}
:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:10px;border:1px solid transparent;font-weight:600;font-size:15px;cursor:pointer;transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease)}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-coral{background:var(--coral-500);color:#0B0E13}
.btn-coral:hover{background:var(--coral-600);transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,106,61,.32);color:#0B0E13}
.btn-coral:active{transform:translateY(0);box-shadow:none}
.btn-neon{background:var(--neon-500);color:#0B0E13}
.btn-neon:hover{background:#3DF0B4;transform:translateY(-1px);box-shadow:0 8px 24px rgba(23,233,163,.3);color:#0B0E13}
.btn-ghost{background:transparent;border-color:rgba(23,233,163,.55);color:var(--neon-500)}
.btn-ghost:hover{background:rgba(23,233,163,.12);border-color:var(--neon-500);color:var(--neon-500)}
.btn-outline-neon{background:transparent;border-color:rgba(15,201,138,.5);color:var(--neon-600)}
.btn-outline-neon:hover{background:var(--neon-soft);border-color:var(--neon-600);color:var(--neon-600)}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--neon-600);font-weight:600;font-size:14px}
.text-link svg{transition:transform var(--dur) var(--ease)}
.text-link:hover svg{transform:translateX(2px)}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}
.link-plain{color:var(--neon-600);text-decoration:underline;text-underline-offset:4px}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:var(--ink-950)}
.brand-bar{border-bottom:1px solid var(--line-dark);transition:height var(--dur) var(--ease)}
.brand-inner{display:flex;align-items:center;gap:20px;height:64px}
.site-header.is-scrolled .brand-inner{height:56px}
.site-header.is-scrolled .brand-bar{background:rgba(11,14,19,.86);backdrop-filter:blur(10px)}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:linear-gradient(135deg,var(--neon-500),#0B9C6E);color:#06110D;font-weight:800;font-size:18px}
.logo-text{color:#fff;font-weight:800;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--neon-500)}
.search-box{position:relative;flex:1 1 auto;max-width:320px;display:none}
@media (min-width:992px){.search-box{display:block}}
.search-box svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-400)}
.search-box input{width:100%;height:40px;border-radius:999px;border:1px solid var(--line-dark);background:rgba(255,255,255,.05);color:#fff;padding:0 16px 0 40px;font-size:14px;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.search-box input::placeholder{color:#7C879B}
.search-box input:focus{outline:none;border-color:var(--neon-500);box-shadow:0 0 0 3px rgba(23,233,163,.16)}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{width:40px;height:40px;display:grid;place-items:center;border-radius:10px;border:1px solid var(--line-dark);background:transparent;color:#fff}
.icon-btn:hover{border-color:var(--neon-500);color:var(--neon-500)}
.channel-bar{border-bottom:1px solid var(--line-dark);background:var(--ink-900)}
.channel-inner{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{flex:0 0 auto;padding:6px 14px;border-radius:8px;color:#A9B2C1;font-size:15px;font-weight:600;white-space:nowrap;border-bottom:2px solid transparent;transition:color var(--dur) var(--ease),background var(--dur) var(--ease)}
.channel-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.channel-link.active{color:var(--neon-500);background:var(--neon-soft);border-bottom-color:var(--neon-500)}
.offcanvas{background:var(--ink-900);color:#fff}
.offcanvas-title{color:#fff;font-size:17px}
.drawer-list a{display:block;padding:13px 4px;border-bottom:1px solid var(--line-dark);color:#C7CEDB;font-weight:600}
.drawer-list a:hover{color:var(--neon-500)}
.btn-close{filter:invert(1) grayscale(1)}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink-950);color:#fff;overflow:hidden;padding:clamp(3rem,2rem + 6vw,5.5rem) 0;scroll-margin-top:120px}
.hero-bg{position:absolute;inset:0;background-image:linear-gradient(115deg,rgba(11,14,19,.95) 8%,rgba(11,14,19,.78) 48%,rgba(11,14,19,.92) 100%),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;}
.hero-bg::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--grid-dark) 1px,transparent 1px),linear-gradient(90deg,var(--grid-dark) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(60% 70% at 70% 20%,#000 0%,transparent 78%)}
.hero-glow{position:absolute;right:-120px;top:-140px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(23,233,163,.16),transparent 66%);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1fr;gap:44px;align-items:center}
@media (min-width:992px){.hero-inner{grid-template-columns:1.35fr .95fr;gap:56px}}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid rgba(23,233,163,.4);color:var(--neon-500);background:var(--neon-soft);font-size:13px;font-weight:600;letter-spacing:.04em}
.hero h1{margin-top:22px;font-size:clamp(2rem,1.2rem + 2.6vw,3.25rem);line-height:1.28}
.hero h1 span{color:var(--neon-500)}
.hero-sub{margin-top:18px;font-size:clamp(1rem,.94rem + .4vw,1.15rem);color:#B9C2D0;max-width:560px}
.hero-points{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px}
.hero-points li{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid var(--line-dark);background:rgba(255,255,255,.04);font-size:14px;color:#D5DBE5}
.hero-points svg{color:var(--neon-500);flex:0 0 auto}
.hero-cta{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px}
.hero-visual{position:relative}
.hero-visual img{border-radius:14px;border:1px solid var(--line-dark);box-shadow:0 24px 60px rgba(0,0,0,.45);aspect-ratio:16/11;object-fit:cover;background:var(--ink-800)}
.float-card{margin-top:-42px;margin-left:18px;position:relative;background:rgba(16,20,25,.94);border:1px solid rgba(23,233,163,.28);padding:18px 20px;clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.float-card .fc-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;color:var(--neon-500);line-height:1.2}
.float-card .fc-label{font-size:12px;color:var(--text-400);margin-top:4px;line-height:1.5}
@media (max-width:991px){.float-card{margin-top:16px;margin-left:0}}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;scroll-margin-top:120px}
.section-mist{background:var(--mist-50)}
.section-white{background:var(--white)}
.section-ink{background:var(--ink-900);color:#fff;position:relative;overflow:hidden}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--neon-600);margin-bottom:12px}
.section-ink .eyebrow{color:var(--neon-500)}
.section-head h2{font-size:clamp(1.5rem,1.1rem + 1.4vw,2.125rem)}
.section-head p{margin-top:12px;color:var(--text-600);max-width:660px}
.section-ink .section-head p{color:#A9B2C1}
.section-ink .section-head h2{color:#fff}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.pain-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
.pain-item{display:flex;gap:16px;padding:24px;background:var(--white);border:1px solid var(--border);border-radius:14px;box-shadow:var(--sh-1);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.pain-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,233,163,.45)}
.pain-icon{flex:0 0 auto;width:40px;height:40px;border-radius:50%;border:1.5px solid var(--neon-500);color:var(--neon-600);display:grid;place-items:center}
.pain-item h3{font-size:17px;margin-bottom:6px}
.pain-item p{color:var(--text-600);font-size:14px}

/* ---------- 方案卡（非对称 2×2） ---------- */
.plan-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){
  .plan-grid{grid-template-columns:1.12fr .88fr}
  .plan-card:nth-child(2){margin-top:34px}
  .plan-card:nth-child(3){margin-top:-18px}
}
.plan-card{position:relative;background:var(--white);border:1px solid var(--border);padding:30px 28px;box-shadow:var(--sh-1);clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,233,163,.5)}
.plan-index{position:absolute;right:22px;top:14px;font-family:var(--font-mono);font-size:48px;font-weight:700;color:rgba(20,23,28,.07);line-height:1}
.plan-card .pc-icon{width:44px;height:44px;border-radius:12px;background:var(--neon-soft);color:var(--neon-600);display:grid;place-items:center;margin-bottom:18px}
.plan-card h3{font-size:20px;margin-bottom:10px}
.plan-card p{color:var(--text-600);font-size:15px}
.plan-card .text-link{margin-top:18px}

/* ---------- 数据区 ---------- */
.stats-band{position:relative;background-image:linear-gradient(rgba(11,14,19,.9),rgba(11,14,19,.94)),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:40px}
@media (min-width:992px){.stats-grid{grid-template-columns:repeat(4,1fr)}}
.stat-item{border-left:2px solid rgba(23,233,163,.35);padding-left:18px}
.stat-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:clamp(30px,1.6rem + 2vw,44px);font-weight:700;color:var(--neon-500);line-height:1.1}
.stat-num small{font-size:15px;font-family:var(--font-sans);color:#B9C2D0;margin-left:6px;font-weight:600}
.stat-label{margin-top:8px;font-size:13px;color:var(--text-400)}
.stats-cta{margin-top:44px;display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.stats-cta span{color:#A9B2C1;font-size:14px}

/* ---------- 资讯列表 ---------- */
.post-card{background:var(--white);border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:var(--sh-1);height:100%;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,233,163,.45)}
.post-cover{position:relative;display:block;background:var(--mist-100)}
.post-cover img{width:100%;aspect-ratio:16/10;object-fit:cover}
.post-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(11,14,19,.55),transparent 55%)}
.pill{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;background:var(--neon-soft);color:var(--neon-600)}
.post-cover .pill{position:absolute;left:14px;bottom:14px;z-index:2;background:rgba(16,20,25,.82);color:var(--neon-500);border:1px solid rgba(23,233,163,.35)}
.post-body{padding:22px}
.post-body h3{font-size:20px;line-height:1.45;margin-bottom:10px}
.post-body h3 a:hover{color:var(--neon-600)}
.post-body p{color:var(--text-600);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-400)}
.post-meta time{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.mini-card{display:flex;gap:16px;background:var(--white);border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:var(--sh-1);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.mini-card + .mini-card{margin-top:20px}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(23,233,163,.45)}
.mini-thumb{flex:0 0 108px;border-radius:10px;overflow:hidden;background:var(--mist-100)}
.mini-thumb img{width:108px;height:108px;object-fit:cover}
.mini-body h3{font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-body h3 a:hover{color:var(--neon-600)}
.mini-body .mini-meta{margin-top:10px;font-size:13px;color:var(--text-400);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.side-note{margin-top:20px;padding:20px 22px;border-radius:14px;border:1px dashed rgba(15,201,138,.5);background:var(--neon-soft)}
.side-note h3{font-size:16px;margin-bottom:10px}
.side-note ul li{font-size:14px;color:var(--text-600);padding-left:16px;position:relative;margin-top:8px}
.side-note ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--neon-500)}
.cms-empty{text-align:center;padding:56px 24px;background:var(--white);border:1px solid var(--border);border-radius:14px;box-shadow:var(--sh-1)}
.cms-empty svg{color:var(--neon-600);margin-bottom:16px}
.cms-empty p{color:var(--text-600);margin-bottom:20px}

/* ---------- FAQ ---------- */
.accordion-custom .accordion-item{background:var(--white);border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden}
.accordion-custom .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(23,233,163,.55)}
.accordion-custom .accordion-button{position:relative;background:var(--white);color:var(--text-900);font-weight:700;font-size:17px;padding:20px 56px 20px 22px;box-shadow:none !important}
.accordion-custom .accordion-button:not(.collapsed){color:var(--text-900);background:var(--white)}
.accordion-custom .accordion-button:not(.collapsed)::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--neon-500);border-radius:3px}
.accordion-custom .accordion-button::after{display:none !important}
.accordion-custom .accordion-button .faq-plus{position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--neon-600);transition:transform var(--dur) var(--ease)}
.accordion-custom .accordion-button:not(.collapsed) .faq-plus{transform:translateY(-50%) rotate(45deg)}
.accordion-custom .accordion-body{padding:0 22px 22px;color:var(--text-600);font-size:15px;line-height:1.8}

/* ---------- 表单 / 弹层 ---------- */
.lead-wrap{background:var(--ink-900);border:1px solid var(--line-dark);clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,22px 100%,0 calc(100% - 22px));padding:clamp(28px,2vw + 18px,48px);position:relative;overflow:hidden}
.lead-wrap::before{content:"";position:absolute;right:-100px;bottom:-120px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(23,233,163,.14),transparent 68%)}
.lead-grid{position:relative;display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:992px){.lead-grid{grid-template-columns:1.3fr 1fr;gap:52px}}
.lead-wrap h2{color:#fff;font-size:clamp(1.5rem,1.1rem + 1.4vw,2.125rem)}
.lead-wrap .lead-intro{color:#A9B2C1;margin-top:12px;font-size:15px}
.form-label-c{display:block;font-size:14px;font-weight:600;color:#D5DBE5;margin-bottom:8px}
.form-control,.form-select{width:100%;height:48px;border-radius:10px;border:1px solid var(--line-dark);background:rgba(255,255,255,.05);color:#fff;padding:0 14px;font-size:15px}
textarea.form-control{height:auto;padding:12px 14px;line-height:1.7}
.form-control::placeholder{color:#7C879B}
.form-select option{color:#14171C}
.form-control:focus,.form-select:focus{outline:none;border-color:var(--neon-500);box-shadow:0 0 0 3px rgba(23,233,163,.16);background:rgba(255,255,255,.07);color:#fff}
.form-check-input{width:18px;height:18px;margin-top:3px;background-color:rgba(255,255,255,.08);border-color:var(--line-dark)}
.form-check-input:checked{background-color:var(--neon-500);border-color:var(--neon-500)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(23,233,163,.2);border-color:var(--neon-500)}
.form-check-label{font-size:13px;color:#A9B2C1;line-height:1.7}
.form-hint{margin-top:12px;font-size:13px;color:var(--text-400)}
.trust-list li{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line-dark)}
.trust-list li:last-child{border-bottom:none}
.trust-list .tl-icon{flex:0 0 auto;width:38px;height:38px;border-radius:10px;background:var(--neon-soft);color:var(--neon-500);display:grid;place-items:center}
.trust-list h4{font-size:16px;color:#fff;margin-bottom:6px}
.trust-list p{font-size:14px;color:#A9B2C1}
.modal-content{background:var(--ink-900);color:#fff;border:1px solid var(--line-dark);border-radius:18px;clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px))}
.modal-header,.modal-footer{border-color:var(--line-dark)}
.modal-title{font-size:18px;font-weight:700}
.modal-backdrop.show{opacity:.66}
.btn-close-c{width:36px;height:36px;border-radius:50%;border:1px solid var(--line-dark);background:transparent;color:#fff;display:grid;place-items:center;font-size:18px;line-height:1}
.btn-close-c:hover{border-color:var(--neon-500);color:var(--neon-500)}
.modal-body{color:#D5DBE5}
@media (max-width:575px){.modal-dialog{margin:0;align-items:flex-end;min-height:100%}.modal-content{border-radius:18px 18px 0 0;clip-path:none}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-950);color:#A9B2C1;padding:64px 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:576px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px}}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;background:var(--neon-500);border-radius:2px}
.footer-desc{font-size:14px;line-height:1.85;margin-top:16px;max-width:320px}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col ul a:hover{color:var(--neon-500)}
.footer-contact li{font-size:14px;margin-bottom:12px;display:flex;gap:10px;align-items:flex-start}
.footer-contact svg{color:var(--neon-500);flex:0 0 auto;margin-top:4px}
.footer-bottom{margin-top:52px;border-top:1px solid var(--line-dark);padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:13px;color:var(--text-400)}
.footer-bottom a:hover{color:var(--neon-500)}
.footer-bottom span.sep{margin:0 10px;color:#39404B}
@media (prefers-reduced-motion:reduce){*{transition:none !important;animation:none !important;scroll-behavior:auto !important}}

/* roulang page: category1 */
:root{
  --ink-950:#0B0E13;
  --ink-900:#101419;
  --ink-800:#181D25;
  --ink-700:#232A35;
  --line-dark:rgba(255,255,255,.08);
  --neon-500:#17E9A3;
  --neon-600:#0FC98A;
  --neon-soft:rgba(23,233,163,.12);
  --coral-500:#FF6A3D;
  --coral-600:#E8552A;
  --mist-50:#F6F7F9;
  --mist-100:#EDEFF3;
  --white:#FFFFFF;
  --text-900:#14171C;
  --text-600:#565E6B;
  --text-400:#8A929E;
  --border:#E4E7EC;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  --sh-1:0 1px 2px rgba(11,14,19,.05),0 6px 18px rgba(11,14,19,.06);
  --sh-2:0 12px 32px rgba(11,14,19,.12);
  --ease:cubic-bezier(.22,.7,.3,1);
  --dur:.22s;
  --sp-section:clamp(3.5rem,2rem + 5vw,6.5rem);
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--white);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--neon-600);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--neon-500)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:inherit;letter-spacing:.01em;line-height:1.28}
h1{font-size:clamp(2rem,1.2rem + 2.6vw,3.25rem);font-weight:800}
h2{font-size:clamp(1.5rem,1.1rem + 1.4vw,2.125rem);font-weight:800}
h3{font-size:20px;font-weight:700;line-height:1.45}
h4{font-size:17px;font-weight:700}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container-xl{max-width:1240px}}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-weight:600;font-size:15px;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  text-decoration:none;white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px;border-radius:12px}
.btn-coral{background:var(--coral-500);color:#0B0E13;border-color:var(--coral-500)}
.btn-coral:hover{background:var(--coral-600);border-color:var(--coral-600);color:#0B0E13;transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,106,61,.32)}
.btn-coral:active{transform:translateY(0);box-shadow:none;color:#0B0E13}
.btn-neon{background:var(--neon-500);color:#0B0E13;border-color:var(--neon-500)}
.btn-neon:hover{background:#2BF0B0;border-color:#2BF0B0;color:#0B0E13;transform:translateY(-1px);box-shadow:0 8px 22px rgba(23,233,163,.3)}
.btn-outline{background:transparent;color:var(--neon-600);border-color:rgba(23,233,163,.55)}
.btn-outline:hover{background:var(--neon-soft);border-color:var(--neon-500);color:var(--neon-600)}
.btn-outline.on-dark{color:var(--neon-500);border-color:rgba(23,233,163,.5)}
.btn-outline.on-dark:hover{background:var(--neon-soft);color:var(--neon-500)}
.btn-icon{width:40px;height:40px;padding:0;border-radius:10px;background:transparent;border:1px solid var(--line-dark);color:rgba(255,255,255,.82)}
.btn-icon:hover{color:var(--neon-500);border-color:rgba(23,233,163,.5);background:rgba(23,233,163,.08)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--neon-600);font-size:15px}
.link-arrow svg{transition:transform var(--dur) var(--ease)}
.link-arrow:hover{color:var(--neon-600);text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover svg{transform:translateX(2px)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(11,14,19,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-dark)}
.brand-row{border-bottom:1px solid var(--line-dark);transition:height var(--dur) var(--ease)}
.brand-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height var(--dur) var(--ease)}
.site-header.is-scrolled .brand-inner{height:56px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff}
.logo-mark{width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(140deg,var(--neon-500),var(--neon-600));color:#07120D;font-weight:800;font-size:18px;flex:0 0 34px}
.logo-text{font-size:17px;font-weight:800;color:#fff;letter-spacing:.01em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--neon-500)}
.nav-search{position:relative;flex:0 1 300px;min-width:200px}
.nav-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:rgba(255,255,255,.45)}
.nav-search input{
  width:100%;height:40px;border-radius:999px;padding:0 16px 0 40px;
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark);color:#fff;font-size:14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.nav-search input::placeholder{color:rgba(255,255,255,.42)}
.nav-search input:focus{outline:none;border-color:var(--neon-500);background:rgba(255,255,255,.09);box-shadow:0 0 0 4px rgba(23,233,163,.16)}
.brand-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.search-toggle{display:none}
.menu-toggle{display:none}
@media (max-width:991px){
  .nav-search{display:none}
  .search-toggle{display:inline-flex}
  .menu-toggle{display:inline-flex}
  .brand-actions .btn-coral{display:none}
  .site-header.search-open .nav-search{
    display:block;position:absolute;left:0;right:0;top:100%;padding:14px 20px;
    background:rgba(11,14,19,.98);border-bottom:1px solid var(--line-dark);flex:1 1 auto;max-width:none;
  }
}
.channel-bar{position:relative}
.channel-inner{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{position:relative;flex:0 0 auto;padding:7px 14px;border-radius:8px;font-size:15px;font-weight:600;color:rgba(255,255,255,.7);white-space:nowrap;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease)}
.channel-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.channel-link.active{color:var(--neon-500);background:var(--neon-soft)}
.channel-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--neon-500);border-radius:2px}

/* ============ 页面主区 ============ */
main{display:block}
.section{padding:var(--sp-section) 0}
.section-tight{padding:clamp(2.5rem,1.5rem + 4vw,4.5rem) 0}
.bg-mist{background:var(--mist-50)}
.scroll-anchor{scroll-margin-top:132px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--neon-600);margin-bottom:14px}
.eyebrow.on-dark{color:var(--neon-500)}

/* Hero */
.page-hero{position:relative;overflow:hidden;background:var(--ink-950);color:#fff;padding:clamp(56px,5vw,88px) 0 clamp(48px,4vw,72px)}
.page-hero::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center;opacity:.34}
.page-hero::after{content:"";position:absolute;inset:0;background:
  linear-gradient(180deg,rgba(11,14,19,.86),rgba(11,14,19,.94)),
  linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px) 0 0/64px 64px,
  linear-gradient(180deg,rgba(255,255,255,.045) 1px,transparent 1px) 0 0/64px 64px;}
.hero-glow{position:absolute;top:-120px;right:-80px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,233,163,.12),rgba(23,233,163,0) 68%);pointer-events:none}
.page-hero .container-xl{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:992px){.hero-grid{grid-template-columns:1.25fr 1fr;align-items:center;gap:56px}}
.hero-title{color:#fff;margin-bottom:16px}
.hero-title span{color:var(--neon-500)}
.hero-sub{font-size:clamp(1rem,.95rem + .3vw,1.125rem);color:rgba(255,255,255,.76);max-width:620px;margin-bottom:22px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.hero-tag{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;border:1px solid rgba(23,233,163,.4);background:rgba(23,233,163,.09);color:#DFFCF1;font-size:13px;font-weight:600}
.hero-tag svg{color:var(--neon-500)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-media{position:relative}
.hero-media img{width:100%;border-radius:var(--r-card);border:1px solid var(--line-dark);box-shadow:0 24px 60px rgba(0,0,0,.45);aspect-ratio:16/10;object-fit:cover;background:var(--ink-800)}
.hero-float{position:absolute;left:-16px;bottom:-22px;background:var(--ink-800);border:1px solid rgba(23,233,163,.35);border-radius:14px;padding:16px 18px;display:flex;gap:22px;clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,16px 100%,0 calc(100% - 16px))}
.hero-float .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:var(--neon-500);line-height:1.2}
.hero-float .lbl{font-size:12px;color:var(--text-400);white-space:nowrap}
@media (max-width:767px){
  .hero-float{position:static;left:0;bottom:0;margin-top:16px;justify-content:space-between;gap:12px;flex-wrap:wrap}
}

/* 面包屑 */
.breadcrumb-bar{background:var(--mist-50);border-bottom:1px solid var(--border)}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:14px;color:var(--text-400);margin:0}
.breadcrumb-list li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb-list a{color:var(--text-600)}
.breadcrumb-list a:hover{color:var(--neon-600)}
.breadcrumb-list .split{color:var(--text-400)}
.breadcrumb-list .current{color:var(--text-900);font-weight:600}

/* 锚点布局 */
.anchor-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:992px){.anchor-layout{grid-template-columns:220px minmax(0,1fr);gap:56px}}
.anchor-nav{align-self:start}
@media (min-width:992px){.anchor-nav{position:sticky;top:132px}}
.anchor-title{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-400);margin-bottom:12px}
.anchor-list{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:6px;
  -webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 24px),transparent 100%);mask-image:linear-gradient(90deg,#000 calc(100% - 24px),transparent 100%)}
.anchor-list::-webkit-scrollbar{display:none}
.anchor-list a{flex:0 0 auto;padding:8px 14px;border-radius:999px;font-size:14px;font-weight:600;color:var(--text-600);background:var(--mist-100);white-space:nowrap;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.anchor-list a:hover{color:var(--neon-600);background:var(--neon-soft)}
.anchor-list a.active{color:#07120D;background:var(--neon-500)}
@media (min-width:992px){
  .anchor-title{margin-bottom:14px}
  .anchor-list{display:block;overflow:visible;padding:0;border-left:1px solid var(--border);-webkit-mask-image:none;mask-image:none}
  .anchor-list a{display:block;padding:11px 0 11px 16px;margin-left:-1px;border-left:3px solid transparent;border-radius:0;background:transparent;font-size:14.5px}
  .anchor-list a:hover{background:transparent;color:var(--neon-600)}
  .anchor-list a.active{background:transparent;color:var(--neon-600);border-left-color:var(--neon-500)}
}
.content-main{min-width:0}
.content-block{padding:34px 0;border-bottom:1px solid var(--border);scroll-margin-top:132px}
.content-block:first-child{padding-top:0}
.content-block:last-child{border-bottom:none;padding-bottom:0}
.content-block h2{margin-bottom:16px}
.content-block h3{margin:26px 0 12px}
.content-block p{color:var(--text-600)}
.content-block strong{color:var(--text-900)}
.lead-text{font-size:17px;color:var(--text-600);line-height:1.85}

/* 列表 */
.dot-list{margin:18px 0;display:grid;gap:12px}
.dot-list li{position:relative;padding-left:26px;color:var(--text-600)}
.dot-list li::before{content:"";position:absolute;left:6px;top:12px;width:7px;height:7px;border-radius:2px;background:var(--neon-500);transform:rotate(45deg)}
.num-list{margin:18px 0;display:grid;gap:14px;counter-reset:step}
.num-list li{position:relative;padding-left:46px;color:var(--text-600);counter-increment:step;min-height:30px}
.num-list li::before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:1px;width:30px;height:30px;border-radius:9px;background:var(--neon-soft);color:var(--neon-600);font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.num-list li b{color:var(--text-900)}

/* 卡片 */
.info-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px 22px 20px;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,233,163,.45)}
.info-card h3{font-size:17px;margin-bottom:8px}
.info-card p{font-size:14.5px;margin:0;color:var(--text-600)}
.card-grid{display:grid;grid-template-columns:1fr;gap:20px;margin:22px 0}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.icon-badge{width:40px;height:40px;border-radius:11px;background:var(--neon-soft);color:var(--neon-600);display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px}
.check-card{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--sh-1);transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease)}
.check-card:hover{border-color:rgba(23,233,163,.45);transform:translateY(-2px)}
.check-num{flex:0 0 38px;width:38px;height:38px;border-radius:11px;background:var(--ink-900);color:var(--neon-500);font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center}
.check-card h3{font-size:16px;margin-bottom:4px}
.check-card p{font-size:14.5px;margin:0;color:var(--text-600)}
.figure-block{margin:24px 0;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--border);background:var(--mist-100)}
.figure-block img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure-block figcaption{font-size:13px;color:var(--text-400);padding:12px 16px;background:#fff;text-align:center}

/* 提示条 */
.note-bar{display:flex;gap:14px;align-items:flex-start;background:var(--mist-50);border:1px solid var(--border);border-left:3px solid var(--neon-500);border-radius:12px;padding:16px 18px;margin:22px 0}
.note-bar svg{flex:0 0 20px;color:var(--neon-600);margin-top:3px}
.note-bar p{margin:0;font-size:14.5px;color:var(--text-600)}

/* FAQ */
.faq-wrap{margin-top:8px}
.accordion-item{border:1px solid var(--border);border-radius:12px;background:#fff;margin-bottom:12px;overflow:hidden}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{display:flex;align-items:center;gap:16px;width:100%;padding:18px 20px;font-size:17px;font-weight:700;color:var(--text-900);background:transparent;border:0;text-align:left;transition:background-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.accordion-button:not(.collapsed){background:rgba(23,233,163,.06);box-shadow:inset 3px 0 0 var(--neon-500)}
.accordion-button:focus{outline:none;box-shadow:inset 0 0 0 2px rgba(23,233,163,.4)}
.accordion-button::after{display:none}
.acc-icon{position:relative;width:22px;height:22px;flex:0 0 22px;margin-left:auto;transition:transform var(--dur) var(--ease)}
.acc-icon::before,.acc-icon::after{content:"";position:absolute;background:var(--neon-600);border-radius:2px}
.acc-icon::before{left:50%;top:5px;width:2px;height:12px;transform:translateX(-50%)}
.acc-icon::after{top:50%;left:5px;height:2px;width:12px;transform:translateY(-50%)}
.accordion-button:not(.collapsed) .acc-icon{transform:rotate(45deg)}
.accordion-body{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-600)}

/* CTA 带 */
.cta-band{padding:0 0 var(--sp-section)}
.cta-card{position:relative;overflow:hidden;background:var(--ink-900);border:1px solid rgba(23,233,163,.35);border-radius:18px;padding:clamp(28px,3vw,44px);
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,22px 100%,0 calc(100% - 22px));
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.cta-card::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;opacity:.18}
.cta-card::after{content:"";position:absolute;top:-100px;right:-60px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(23,233,163,.16),rgba(23,233,163,0) 70%)}
.cta-copy{position:relative;z-index:2;max-width:640px}
.cta-copy h2{color:#fff;margin-bottom:10px}
.cta-copy p{color:rgba(255,255,255,.72);margin:0;font-size:15.5px}
.cta-card .btn{position:relative;z-index:2}

/* 表单 / 弹层 */
.modal-content{background:var(--ink-900);color:#fff;border:1px solid rgba(23,233,163,.3);border-radius:18px;overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px))}
.modal-header{border-bottom:1px solid var(--line-dark);padding:20px 24px}
.modal-title{font-size:19px;font-weight:700;color:#fff}
.modal-body{padding:22px 24px 26px}
.modal-backdrop.show{opacity:.66;background:#0B0E13}
.btn-close{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);opacity:.85;transition:background-color var(--dur) var(--ease)}
.btn-close:hover{background:rgba(23,233,163,.25);opacity:1}
.form-label{font-size:14px;font-weight:600;color:rgba(255,255,255,.82);margin-bottom:8px}
.form-control,.form-select{height:48px;border-radius:10px;border:1px solid var(--line-dark);background:rgba(255,255,255,.05);color:#fff;font-size:15px;padding:0 14px;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
textarea.form-control{height:auto;padding:12px 14px;line-height:1.7}
.form-control::placeholder{color:rgba(255,255,255,.4)}
.form-control:focus,.form-select:focus{background:rgba(255,255,255,.08);border-color:var(--neon-500);box-shadow:0 0 0 4px rgba(23,233,163,.16);color:#fff;outline:none}
.form-select option{background:var(--ink-900);color:#fff}
.form-check-input{width:18px;height:18px;background:rgba(255,255,255,.08);border:1px solid var(--line-dark);margin-top:3px}
.form-check-input:checked{background-color:var(--neon-500);border-color:var(--neon-500)}
.form-check-input:focus{box-shadow:0 0 0 4px rgba(23,233,163,.2);border-color:var(--neon-500)}
.form-check-label{font-size:13px;color:var(--text-400);line-height:1.6}
.form-hint{font-size:13px;color:var(--text-400);margin-top:10px}
.success-state{display:none;text-align:center;padding:26px 6px}
.success-state.show{display:block}
.success-state svg{color:var(--neon-500);margin-bottom:14px}
.success-state p{color:rgba(255,255,255,.78);margin-bottom:16px}

/* 移动端抽屉 */
.mobile-drawer{background:var(--ink-900);color:#fff;width:86%;border-left:1px solid rgba(23,233,163,.25)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line-dark)}
.drawer-body{padding:18px 20px 28px}
.drawer-link{display:block;padding:13px 4px;font-size:16px;font-weight:600;color:rgba(255,255,255,.82);border-bottom:1px solid var(--line-dark)}
.drawer-link.active{color:var(--neon-500)}
.drawer-link:hover{color:var(--neon-500)}
.drawer-body .btn{width:100%;margin-top:22px}

/* 页脚 */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.72);padding:clamp(2.5rem,2rem + 3vw,4rem) 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:36px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;background:var(--neon-500);border-radius:2px}
.footer-desc{font-size:14px;color:rgba(255,255,255,.6);margin-top:16px;max-width:320px;line-height:1.8}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14.5px;color:rgba(255,255,255,.68)}
.footer-col ul a:hover{color:var(--neon-500)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.62);line-height:1.7}
.footer-contact svg{flex:0 0 16px;color:var(--neon-500);margin-top:4px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding:18px 0;border-top:1px solid var(--line-dark);font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--neon-500)}
.footer-bottom .sep{margin:0 8px;color:rgba(255,255,255,.24)}
@media (max-width:767px){.footer-bottom{justify-content:center;text-align:center}}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .info-card:hover,.check-card:hover,.btn:hover{transform:none!important}
}

/* roulang page: article */
:root{
  --ink-950:#0B0E13;--ink-900:#101419;--ink-800:#181D25;--ink-700:#232A35;
  --line-dark:rgba(255,255,255,.08);--grid-dark:rgba(255,255,255,.045);
  --neon-500:#17E9A3;--neon-600:#0FC98A;--neon-soft:rgba(23,233,163,.12);
  --coral-500:#FF6A3D;--coral-600:#E8552A;
  --mist-50:#F6F7F9;--mist-100:#EDEFF3;--white:#FFFFFF;
  --text-900:#14171C;--text-600:#565E6B;--text-400:#8A929E;
  --border:#E4E7EC;
  --r-card:14px;--r-img:12px;--r-btn:10px;
  --sh-1:0 1px 2px rgba(11,14,19,.05),0 6px 18px rgba(11,14,19,.06);
  --sh-2:0 12px 32px rgba(11,14,19,.12);
  --ease:cubic-bezier(.22,.7,.3,1);--dur:.22s;
  --sp-section:clamp(3.5rem,2rem + 5vw,6.5rem);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  --bs-primary:#17E9A3;--bs-body-color:#14171C;--bs-body-bg:#FFFFFF;
  --bs-border-color:#E4E7EC;--bs-link-color:#0FC98A;--bs-link-hover-color:#17E9A3;
  --bs-font-sans-serif:var(--font-sans);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.75;
  color:var(--text-900);background:var(--mist-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--neon-600);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--neon-500)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container-xl{max-width:1240px}}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.cut{clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,16px 100%,0 calc(100% - 16px))}

/* ---------- 按钮体系 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease)}
.btn:focus,.btn:active{box-shadow:none!important;outline:none}
.btn:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--coral-500);color:#0B0E13}
.btn-primary:hover{background:var(--coral-600);color:#0B0E13;transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,106,61,.32)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-neon{background:var(--neon-500);color:#0B0E13}
.btn-neon:hover{background:var(--neon-600);color:#0B0E13;transform:translateY(-1px);box-shadow:0 8px 22px rgba(23,233,163,.28)}
.btn-outline{background:transparent;border-color:var(--neon-500);color:var(--neon-600)}
.btn-outline:hover{background:var(--neon-soft);border-color:var(--neon-600);color:#0A9E6E}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--text-600)}
.btn-ghost:hover{border-color:rgba(23,233,163,.45);color:var(--text-900);background:#fff}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--neon-600)}
.link-arrow svg{transition:transform var(--dur) var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1040;background:rgba(11,14,19,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line-dark)}
.topbar{display:flex;align-items:center;height:64px;gap:22px;transition:height var(--dur) var(--ease)}
.site-header.is-condensed .topbar{height:56px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--neon-500),var(--neon-600));
  color:#0B0E13;font-weight:800;font-size:17px;display:grid;place-items:center}
.logo-text{font-size:17px;font-weight:800;color:#fff;letter-spacing:.01em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--neon-500)}
.search-wrap{position:relative;flex:1;max-width:320px;margin-left:auto}
.search-wrap input{width:100%;height:40px;border-radius:999px;border:1px solid var(--line-dark);
  background:rgba(255,255,255,.05);color:#fff;font-size:14px;padding:0 16px 0 40px;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.search-wrap input::placeholder{color:rgba(255,255,255,.4)}
.search-wrap input:focus{outline:none;border-color:var(--neon-500);box-shadow:0 0 0 4px rgba(23,233,163,.16)}
.search-wrap svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:rgba(255,255,255,.45)}
.top-actions{display:flex;align-items:center;gap:12px}
.icon-btn{width:40px;height:40px;border-radius:10px;border:1px solid var(--line-dark);background:rgba(255,255,255,.05);
  color:#fff;display:none;place-items:center;cursor:pointer;transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease)}
.icon-btn:hover{border-color:var(--neon-500);color:var(--neon-500)}

.channel-bar{background:rgba(16,20,25,.96);border-bottom:1px solid var(--line-dark)}
.channel-inner{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%)}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{flex:0 0 auto;padding:6px 14px;border-radius:10px;font-size:14.5px;font-weight:600;
  color:rgba(255,255,255,.72);white-space:nowrap;border-bottom:2px solid transparent;transition:all var(--dur) var(--ease)}
.channel-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.channel-link.active{color:var(--neon-500);background:var(--neon-soft);border-bottom-color:var(--neon-500)}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0 0 0 auto;width:86%;max-width:340px;background:var(--ink-900);
  border-left:1px solid var(--line-dark);transform:translateX(100%);transition:transform .3s var(--ease);z-index:1060;padding:22px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(11,14,19,.6);opacity:0;visibility:hidden;transition:opacity .3s var(--ease);z-index:1055}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer h5{color:#fff;font-size:14px;letter-spacing:.08em;text-transform:uppercase;margin:18px 0 10px;color:rgba(255,255,255,.45)}
.drawer a.drawer-link{display:block;color:#fff;font-size:15.5px;font-weight:600;padding:11px 12px;border-radius:10px}
.drawer a.drawer-link:hover{background:rgba(255,255,255,.06);color:var(--neon-500)}
.drawer-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line-dark);background:transparent;color:#fff;cursor:pointer}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border)}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:14px 0;font-size:14px;color:var(--text-400)}
.crumb a{color:var(--text-600)}
.crumb a:hover{color:var(--neon-600)}
.crumb .sep{color:#C9CFD8}
.crumb .current{color:var(--text-900);font-weight:600;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{background:#fff;padding:clamp(2rem,1.2rem + 3vw,3.25rem) 0 clamp(1.5rem,1rem + 2vw,2.25rem);border-bottom:1px solid var(--border)}
.article-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--neon-600);font-family:var(--font-mono)}
.article-head h1{font-size:clamp(1.7rem,1.1rem + 2.2vw,2.75rem);margin-top:14px;max-width:22ch}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:14px;color:var(--text-400)}
.article-meta .dot{color:#C9CFD8}
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--neon-soft);color:#0A9E6E;border:1px solid rgba(23,233,163,.35)}
.pill-dark{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.06);color:#fff;border:1px solid var(--neon-500)}
.head-rule{height:1px;background:var(--border);margin-top:22px}

/* ---------- 主体布局 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;padding:clamp(2rem,1.4rem + 2vw,3rem) 0 var(--sp-section)}
@media (min-width:992px){.layout{grid-template-columns:minmax(0,1fr) 300px;gap:40px}}

.article-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.cover{margin:0}
.cover img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--mist-100)}
.cover figcaption{font-size:13px;color:var(--text-400);text-align:center;padding:12px 16px 0}
.article-body{padding:clamp(1.5rem,1rem + 2vw,2.5rem)}
.article-body>*+*{margin-top:1.2em}
.article-body p{font-size:17px;line-height:1.9;color:#242A33}
.article-body h2{font-size:21px;line-height:1.4;position:relative;padding-left:16px;margin:40px 0 18px;scroll-margin-top:120px}
.article-body h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:2px;background:var(--neon-500)}
.article-body h3{font-size:18px;margin:32px 0 14px;scroll-margin-top:120px}
.article-body a{color:var(--neon-600);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{color:var(--neon-500)}
.article-body ul,.article-body ol{padding-left:22px;line-height:1.9;font-size:17px;color:#242A33}
.article-body ul{list-style:none;padding-left:0}
.article-body ul li{position:relative;padding-left:20px;margin:8px 0}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:2px;background:var(--neon-500)}
.article-body ol{list-style:decimal}
.article-body ol li{margin:8px 0}
.article-body ol li::marker{color:var(--neon-600);font-weight:700}
.article-body blockquote{margin:26px 0;border-left:3px solid var(--neon-500);background:var(--mist-50);
  padding:18px 20px;border-radius:0 var(--r-img) var(--r-img) 0;color:var(--text-600);font-size:16.5px;line-height:1.85}
.article-body img{border-radius:var(--r-img);margin:24px auto;width:auto;max-width:100%}
.article-body table{width:100%;border-collapse:collapse;border:1px solid var(--border);border-radius:var(--r-img);overflow:hidden;font-size:15px}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--border);text-align:left}
.article-body thead th{background:var(--mist-50);font-weight:700}
.article-body tbody tr:nth-child(even){background:var(--mist-50)}
.article-body code{font-family:var(--font-mono);background:var(--mist-100);border-radius:6px;padding:2px 6px;font-size:14px}
.article-body pre{background:var(--ink-900);color:#E6EAF0;border-radius:var(--r-img);padding:16px 18px;overflow-x:auto}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;height:1px;background:var(--border);margin:40px 0}

/* ---------- 空态 ---------- */
.empty-state{padding:56px 24px;text-align:center}
.empty-state .empty-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:16px;border:1px dashed rgba(23,233,163,.5);
  display:grid;place-items:center;color:var(--neon-600)}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--text-600);font-size:15px;margin-bottom:20px}

/* ---------- 文章尾部 ---------- */
.article-foot{border-top:1px solid var(--border);padding:24px clamp(1.5rem,1rem + 2vw,2.5rem);background:var(--mist-50)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tag-row .label{font-size:13px;color:var(--text-400);margin-right:4px}
.tag{display:inline-block;padding:5px 13px;border-radius:999px;border:1px solid rgba(23,233,163,.45);
  font-size:13px;color:#0A9E6E;background:#fff;transition:all var(--dur) var(--ease)}
.tag:hover{background:var(--neon-soft);border-color:var(--neon-500)}
.share-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px}
@media (min-width:992px){.sidebar{position:sticky;top:132px;align-self:start}}
.side-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1)}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:16px;height:3px;border-radius:2px;background:var(--neon-500)}
.toc-list li+li{margin-top:8px}
.toc-list a{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-600);padding:6px 10px;border-radius:8px;border-left:3px solid transparent}
.toc-list a:hover{background:var(--mist-50);color:var(--text-900);border-left-color:var(--neon-500)}
.toc-list .idx{font-family:var(--font-mono);font-size:12.5px;color:var(--text-400)}
.side-link{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;border-bottom:1px dashed var(--border);font-size:14.5px;color:var(--text-600);font-weight:600}
.side-link:last-child{border-bottom:0;padding-bottom:0}
.side-link:hover{color:var(--neon-600)}
.side-link .arrow{color:var(--neon-500);transition:transform var(--dur) var(--ease)}
.side-link:hover .arrow{transform:translateX(3px)}
.side-cta{background:var(--ink-900);border:1px solid rgba(23,233,163,.35);border-radius:var(--r-card);
  padding:22px 20px;color:#fff;position:relative;overflow:hidden}
.side-cta::after{content:"";position:absolute;top:-40px;right:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,233,163,.22),transparent 68%)}
.side-cta h3{font-size:16px;color:#fff;margin-bottom:8px;position:relative}
.side-cta p{font-size:13.5px;color:rgba(255,255,255,.62);line-height:1.7;margin-bottom:16px;position:relative}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 var(--sp-section)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.section-head h2{font-size:clamp(1.4rem,1.1rem + 1vw,1.9rem)}
.section-head p{color:var(--text-600);font-size:14.5px;margin-top:8px}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);height:100%;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,233,163,.45)}
.card-cover{position:relative;aspect-ratio:16/10;background:var(--mist-100)}
.card-cover img{width:100%;height:100%;object-fit:cover}
.card-cover::after{content:"";position:absolute;inset:auto 0 0 0;height:56%;background:linear-gradient(180deg,transparent,rgba(11,14,19,.66))}
.card-cover .pill-dark{position:absolute;left:12px;bottom:12px;z-index:2}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.45}
.card-body h3 a{color:var(--text-900)}
.card-body h3 a:hover{color:var(--neon-600)}
.card-body p{font-size:14px;color:var(--text-600);line-height:1.7}
.card-meta{margin-top:auto;font-size:13px;color:var(--text-400);display:flex;align-items:center;gap:8px}

/* ---------- 返回入口 ---------- */
.back-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;padding-bottom:var(--sp-section)}

/* ---------- CTA 带 ---------- */
.cta-band{padding-bottom:var(--sp-section)}
.cta-card{position:relative;overflow:hidden;border:1px solid rgba(23,233,163,.4);border-radius:var(--r-card);
  background:var(--ink-900);color:#fff;padding:clamp(2rem,1.4rem + 3vw,3.25rem)}
.cta-card::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--grid-dark) 1px,transparent 1px),linear-gradient(90deg,var(--grid-dark) 1px,transparent 1px);background-size:44px 44px;opacity:.9}
.cta-card::after{content:"";position:absolute;top:-90px;right:-60px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(23,233,163,.16),transparent 68%)}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr;gap:26px;align-items:center}
@media (min-width:992px){.cta-inner{grid-template-columns:1.4fr 1fr}}
.cta-inner h2{font-size:clamp(1.4rem,1.1rem + 1vw,2rem);color:#fff}
.cta-inner p{color:rgba(255,255,255,.7);font-size:15px;line-height:1.85;margin-top:12px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.66);padding:clamp(2.5rem,2rem + 3vw,4rem) 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:576px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.4fr}}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:22px;height:2px;border-radius:2px;background:var(--neon-500)}
.footer-desc{font-size:14px;line-height:1.85;margin-top:16px;max-width:34ch;color:rgba(255,255,255,.58)}
.footer-col ul li+li{margin-top:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col ul a:hover{color:var(--neon-500)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.58)}
.footer-contact svg{flex-shrink:0;margin-top:3px;color:var(--neon-500)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:36px;padding:20px 0;border-top:1px solid var(--line-dark);font-size:13px;color:rgba(255,255,255,.45)}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--neon-500)}
.footer-bottom .sep{margin:0 8px;color:rgba(255,255,255,.2)}

/* ---------- 弹层 ---------- */
.modal-content{background:var(--ink-900);color:#fff;border:1px solid rgba(255,255,255,.08);border-radius:18px;
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px))}
.modal-header{border-bottom:1px solid var(--line-dark);padding:22px 24px 16px}
.modal-title{font-size:19px;color:#fff}
.modal-body{padding:22px 24px 26px}
.modal .btn-close{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.06);opacity:1;
  background-image:none;position:relative;transition:background var(--dur) var(--ease)}
.modal .btn-close::before,.modal .btn-close::after{content:"";position:absolute;left:50%;top:50%;width:14px;height:1.6px;background:#fff;border-radius:2px}
.modal .btn-close::before{transform:translate(-50%,-50%) rotate(45deg)}
.modal .btn-close::after{transform:translate(-50%,-50%) rotate(-45deg)}
.modal .btn-close:hover{background:rgba(23,233,163,.24)}
.form-label{font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:6px;font-weight:600}
.form-control,.form-select{height:48px;border-radius:10px;border:1px solid var(--line-dark);
  background:rgba(255,255,255,.05);color:#fff;font-size:14.5px;padding:0 14px}
textarea.form-control{height:auto;padding:12px 14px;line-height:1.7}
.form-control::placeholder{color:rgba(255,255,255,.38)}
.form-control:focus,.form-select:focus{background:rgba(255,255,255,.08);border-color:var(--neon-500);color:#fff;
  box-shadow:0 0 0 3px rgba(23,233,163,.18);outline:none}
.form-select option{color:#14171C}
.form-check-input{width:18px;height:18px;margin-top:3px;background-color:rgba(255,255,255,.08);border-color:rgba(255,255,255,.24)}
.form-check-input:checked{background-color:var(--neon-500);border-color:var(--neon-500)}
.form-check-label{font-size:13px;color:rgba(255,255,255,.55);line-height:1.7}
.form-note{font-size:13px;color:rgba(255,255,255,.45);margin-top:10px}
.form-success{text-align:center;padding:18px 6px}
.form-success .check{width:52px;height:52px;margin:0 auto 14px;border-radius:50%;background:var(--neon-soft);
  border:1px solid var(--neon-500);display:grid;place-items:center;color:var(--neon-500)}
.form-success h4{color:#fff;font-size:17px;margin-bottom:8px}
.form-success p{color:rgba(255,255,255,.6);font-size:14px}

@media (max-width:991px){
  .search-wrap{display:none}
  .icon-btn{display:grid}
  .top-actions .btn{display:none}
  .layout{padding-top:24px}
}
@media (max-width:767px){
  .container-xl{padding:0 16px}
  .article-head h1{max-width:none}
  .article-body p,.article-body ul,.article-body ol{font-size:16px}
  .footer-bottom{flex-direction:column;text-align:center}
  .modal-dialog{margin:0;align-items:flex-end;min-height:calc(100% - 40px)}
  .modal-content{border-radius:18px 18px 0 0;clip-path:none}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .card:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --ink-950:#0B0E13;
  --ink-900:#101419;
  --ink-800:#181D25;
  --ink-700:#232A35;
  --line-dark:rgba(255,255,255,.08);
  --neon-500:#17E9A3;
  --neon-600:#0FC98A;
  --neon-soft:rgba(23,233,163,.12);
  --coral-500:#FF6A3D;
  --coral-600:#E8552A;
  --mist-50:#F6F7F9;
  --mist-100:#EDEFF3;
  --white:#FFFFFF;
  --text-900:#14171C;
  --text-600:#565E6B;
  --text-400:#8A929E;
  --border:#E4E7EC;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --sh-1:0 1px 2px rgba(11,14,19,.05),0 6px 18px rgba(11,14,19,.06);
  --sh-2:0 12px 32px rgba(11,14,19,.12);
  --ease:cubic-bezier(.22,.7,.3,1);
  --dur:.22s;
  --sp-section:clamp(3.5rem,2rem + 5vw,6.5rem);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;

  --bs-primary:#17E9A3;
  --bs-body-color:#14171C;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E4E7EC;
  --bs-link-color:#0FC98A;
  --bs-link-hover-color:#17E9A3;
  --bs-font-sans-serif:var(--font-sans);
  --bs-gutter-x:1.5rem;
  --bs-gutter-y:1.5rem;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--neon-600);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--neon-500);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.01em;color:var(--text-900);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

.container-xl{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container-xl{max-width:1240px;}
}

/* ============ 顶部双层导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(11,14,19,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-dark);
}
.brand-bar{
  height:64px;
  display:flex;
  align-items:center;
  transition:height var(--dur) var(--ease);
}
.site-header.is-scrolled .brand-bar{height:56px;}
.brand-inner{
  display:flex;
  align-items:center;
  gap:20px;
  width:100%;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--white);
}
.logo:hover{color:var(--white);}
.logo-mark{
  width:34px;
  height:34px;
  flex:0 0 34px;
  display:grid;
  place-items:center;
  border-radius:10px;
  background:linear-gradient(140deg,var(--neon-500),var(--neon-600));
  color:var(--ink-950);
  font-weight:800;
  font-size:17px;
  clip-path:polygon(0 0,calc(100% - 9px) 0,100% 9px,100% 100%,9px 100%,0 calc(100% - 9px));
}
.logo-text{
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
  white-space:nowrap;
}
.logo-text em{
  font-style:normal;
  color:var(--neon-500);
}
.search-box{
  position:relative;
  flex:1 1 auto;
  max-width:320px;
  min-width:180px;
  display:flex;
  align-items:center;
  margin-left:12px;
}
.search-box svg{
  position:absolute;
  left:14px;
  color:var(--text-400);
  pointer-events:none;
}
.search-box input{
  width:100%;
  height:40px;
  padding:0 16px 0 40px;
  border-radius:999px;
  border:1px solid var(--line-dark);
  background:rgba(255,255,255,.05);
  color:var(--white);
  font-size:14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.search-box input::placeholder{color:rgba(255,255,255,.45);}
.search-box input:focus{
  outline:none;
  border-color:var(--neon-500);
  box-shadow:0 0 0 4px rgba(23,233,163,.16);
}
.brand-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
}
.nav-toggle,.search-toggle{
  display:none;
  width:40px;
  height:40px;
  border:1px solid var(--line-dark);
  border-radius:10px;
  background:transparent;
  color:var(--white);
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover,.search-toggle:hover{border-color:var(--neon-500);color:var(--neon-500);}

.mobile-search{
  display:none;
  padding:0 20px 14px;
}
.mobile-search input{
  width:100%;
  height:42px;
  padding:0 16px;
  border-radius:10px;
  border:1px solid var(--line-dark);
  background:rgba(255,255,255,.06);
  color:var(--white);
  font-size:14px;
}
.mobile-search input::placeholder{color:rgba(255,255,255,.45);}
body.search-open .mobile-search{display:block;}

.channel-bar{
  background:var(--ink-900);
  border-top:1px solid var(--line-dark);
  position:relative;
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:6px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;
  padding:8px 14px;
  font-size:14.5px;
  font-weight:600;
  color:rgba(255,255,255,.72);
  border-radius:8px;
  border-bottom:2px solid transparent;
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.channel-link:hover{color:var(--white);background:rgba(255,255,255,.06);}
.channel-link.active{
  color:var(--neon-500);
  background:var(--neon-soft);
  border-bottom-color:var(--neon-500);
}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn:focus,.btn:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px;box-shadow:none;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-coral{background:var(--coral-500);color:var(--ink-950);}
.btn-coral:hover{background:var(--coral-600);color:var(--ink-950);transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,106,61,.32);}
.btn-coral:active{transform:none;}
.btn-neon{background:var(--neon-500);color:var(--ink-950);}
.btn-neon:hover{background:var(--neon-600);color:var(--ink-950);box-shadow:0 0 0 4px rgba(23,233,163,.18);}
.btn-outline-neon{background:transparent;color:var(--neon-500);border-color:var(--neon-500);}
.btn-outline-neon:hover{background:var(--neon-soft);color:var(--neon-500);border-color:var(--neon-600);}
.btn-ghost-light{background:transparent;color:var(--white);border-color:rgba(255,255,255,.28);}
.btn-ghost-light:hover{color:var(--white);border-color:var(--white);background:rgba(255,255,255,.08);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--neon-600);
}
.link-arrow svg{transition:transform var(--dur) var(--ease);}
.link-arrow:hover{color:var(--neon-500);text-decoration:underline;text-underline-offset:4px;}
.link-arrow:hover svg{transform:translateX(2px);}

/* ============ 面包屑 ============ */
.breadcrumb-bar{
  background:var(--mist-50);
  border-bottom:1px solid var(--border);
}
.breadcrumb-list{
  display:flex;
  align-items:center;
  gap:8px;
  height:48px;
  font-size:14px;
  color:var(--text-600);
  overflow:hidden;
}
.breadcrumb-list a{color:var(--text-600);}
.breadcrumb-list a:hover{color:var(--neon-600);}
.breadcrumb-list .sep{color:var(--text-400);}
.breadcrumb-list .current{color:var(--text-900);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

/* ============ Banner ============ */
.page-banner{
  position:relative;
  min-height:320px;
  display:flex;
  align-items:center;
  background-color:var(--ink-900);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(100deg,rgba(11,14,19,.94) 0%,rgba(11,14,19,.78) 48%,rgba(11,14,19,.58) 100%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.045) 0 1px,transparent 1px 44px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 44px);
}
.page-banner::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-140px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(23,233,163,.16),transparent 68%);
  pointer-events:none;
}
.banner-inner{
  position:relative;
  z-index:2;
  padding:56px 0 60px;
  max-width:760px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--neon-soft);
  border:1px solid rgba(23,233,163,.32);
  color:var(--neon-500);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  margin-bottom:18px;
}
.page-banner h1{
  color:var(--white);
  font-size:clamp(2rem,1.2rem + 2.6vw,3.25rem);
  line-height:1.28;
  margin-bottom:16px;
}
.page-banner h1 span{color:var(--neon-500);}
.banner-lead{
  color:rgba(255,255,255,.76);
  font-size:16.5px;
  line-height:1.8;
  max-width:560px;
}
.banner-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.tag-dark{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.86);
  font-size:13.5px;
}
.tag-dark svg{color:var(--neon-500);}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0;}
.section-mist{background:var(--mist-50);}
.section-dark{background:var(--ink-900);color:rgba(255,255,255,.78);}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:36px;
}
.section-head .head-text{max-width:680px;}
.section-title{
  font-size:clamp(1.5rem,1.1rem + 1.4vw,2.125rem);
  line-height:1.28;
  margin-bottom:12px;
}
.section-dark .section-title{color:var(--white);}
.section-sub{
  font-size:15.5px;
  color:var(--text-600);
  line-height:1.8;
}
.section-dark .section-sub{color:rgba(255,255,255,.66);}
.divider{height:1px;background:var(--border);margin:56px 0;}

/* ============ 三列卡片网格 ============ */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.media-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.media-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:rgba(23,233,163,.45);
}
.media-thumb{
  position:relative;
  aspect-ratio:16/10;
  background:var(--mist-100);
  overflow:hidden;
}
.media-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.media-card:hover .media-thumb img{transform:scale(1.04);}
.media-thumb::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:56%;
  background:linear-gradient(to top,rgba(11,14,19,.72),transparent);
}
.thumb-pill{
  position:absolute;
  left:14px;
  bottom:12px;
  z-index:2;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(23,233,163,.9);
  color:var(--ink-950);
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
}
.media-body{
  padding:20px 20px 22px;
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
}
.media-body h3{
  font-size:20px;
  font-weight:700;
  line-height:1.45;
  margin-bottom:10px;
}
.media-body p{
  font-size:14.5px;
  color:var(--text-600);
  line-height:1.75;
  margin-bottom:16px;
}
.media-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.card-index{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  color:var(--text-400);
  letter-spacing:.06em;
}

/* ============ 图文分步 ============ */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:56px;
  align-items:center;
}
.split-media{
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--mist-100);
  border:1px solid var(--border);
  box-shadow:var(--sh-1);
}
.split-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.step-list{counter-reset:step;}
.step-list li{
  position:relative;
  padding:0 0 22px 56px;
  counter-increment:step;
}
.step-list li:last-child{padding-bottom:0;}
.step-list li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:0;
  top:0;
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  border-radius:10px;
  background:var(--neon-soft);
  border:1px solid rgba(23,233,163,.42);
  color:var(--neon-600);
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
}
.step-list li::after{
  content:"";
  position:absolute;
  left:18px;
  top:44px;
  bottom:6px;
  width:2px;
  background:var(--border);
}
.step-list li:last-child::after{display:none;}
.step-list h3{
  font-size:17px;
  font-weight:700;
  margin-bottom:6px;
}
.step-list p{
  font-size:14.5px;
  color:var(--text-600);
  line-height:1.8;
}

/* ============ 核对清单 + 提示卡 ============ */
.check-layout{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:32px;
  align-items:start;
}
.check-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.check-item{
  display:flex;
  gap:14px;
  padding:20px;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--sh-1);
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.check-item:hover{border-color:rgba(23,233,163,.45);transform:translateY(-2px);}
.check-icon{
  flex:0 0 34px;
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  border-radius:50%;
  border:1px solid rgba(23,233,163,.5);
  color:var(--neon-600);
  background:var(--neon-soft);
}
.check-item h3{font-size:16.5px;font-weight:700;margin-bottom:6px;}
.check-item p{font-size:14px;color:var(--text-600);line-height:1.75;}
.tip-card{
  background:var(--ink-900);
  color:rgba(255,255,255,.78);
  border-radius:var(--radius-card);
  padding:26px 24px;
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
  border:1px solid var(--line-dark);
}
.tip-card h3{
  color:var(--white);
  font-size:18px;
  font-weight:700;
  margin-bottom:12px;
}
.tip-card p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.74);}
.tip-card ul{margin-top:16px;display:grid;gap:10px;}
.tip-card li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:rgba(255,255,255,.74);
}
.tip-card li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--neon-500);
}
.tip-card .btn{margin-top:20px;}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  border:1px solid var(--border);
  border-radius:12px;
  background:var(--white);
  box-shadow:var(--sh-1);
  margin-bottom:12px;
  overflow:hidden;
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-button{
  width:100%;
  padding:20px 56px 20px 22px;
  font-size:17px;
  font-weight:700;
  color:var(--text-900);
  background:var(--white);
  border:0;
  box-shadow:none;
  position:relative;
  line-height:1.5;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--neon-600);
  background:var(--neon-soft);
  box-shadow:inset 3px 0 0 var(--neon-500);
}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-accordion .accordion-button::after{
  content:"";
  position:absolute;
  right:22px;
  top:50%;
  width:14px;
  height:14px;
  margin:0;
  transform:translateY(-50%);
  background:
    linear-gradient(var(--neon-600),var(--neon-600)) center/14px 2px no-repeat,
    linear-gradient(var(--neon-600),var(--neon-600)) center/2px 14px no-repeat;
  transition:transform var(--dur) var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);
}
.faq-accordion .accordion-body{
  padding:0 26px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-600);
}

/* ============ CTA 带 ============ */
.cta-section{padding:0 0 var(--sp-section);}
.cta-card{
  background:
    radial-gradient(circle at 88% 12%,rgba(23,233,163,.16),transparent 58%),
    var(--ink-900);
  border:1px solid var(--line-dark);
  border-radius:var(--radius-card);
  padding:44px 44px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px));
}
.cta-copy{max-width:620px;}
.cta-copy h2{
  color:var(--white);
  font-size:clamp(1.4rem,1.1rem + 1vw,1.9rem);
  margin-bottom:12px;
  line-height:1.35;
}
.cta-copy p{color:rgba(255,255,255,.72);font-size:15.5px;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-950);
  color:rgba(255,255,255,.68);
  padding:64px 0 0;
  border-top:1px solid var(--line-dark);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-col h4{
  color:var(--white);
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
  padding-bottom:10px;
  position:relative;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:26px;
  height:2px;
  background:var(--neon-500);
  border-radius:2px;
}
.footer-col .logo{margin-bottom:16px;}
.footer-col .logo-text{font-size:16px;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);}
.footer-col ul{display:grid;gap:11px;}
.footer-col ul a{color:rgba(255,255,255,.68);font-size:14px;}
.footer-col ul a:hover{color:var(--neon-500);}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.62);
}
.footer-contact svg{flex:0 0 16px;margin-top:4px;color:var(--neon-500);}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:18px 0 24px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--neon-500);}
.footer-bottom .sep{margin:0 10px;color:rgba(255,255,255,.24);}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(11,14,19,.66);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
  z-index:1050;
}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  height:100%;
  width:86%;
  max-width:360px;
  background:var(--ink-900);
  border-left:1px solid var(--line-dark);
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  z-index:1060;
  padding:20px 22px 32px;
  overflow-y:auto;
}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
body.drawer-open .mobile-drawer{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:24px;
}
.drawer-close{
  width:36px;
  height:36px;
  display:grid;
  place-items:center;
  border-radius:10px;
  border:1px solid var(--line-dark);
  background:transparent;
  color:var(--white);
}
.drawer-close:hover{border-color:var(--neon-500);color:var(--neon-500);}
.drawer-nav{display:grid;gap:6px;margin-bottom:26px;}
.drawer-nav a{
  padding:13px 14px;
  border-radius:10px;
  color:rgba(255,255,255,.78);
  font-size:15.5px;
  font-weight:600;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(255,255,255,.06);color:var(--white);}
.drawer-nav a.active{
  color:var(--neon-500);
  background:var(--neon-soft);
  border-color:rgba(23,233,163,.32);
}

/* ============ 模态表单 ============ */
.modal-backdrop.show{opacity:.66;background:var(--ink-950);}
.modal-content{
  border:1px solid var(--line-dark);
  border-radius:18px;
  background:var(--ink-900);
  color:rgba(255,255,255,.76);
  overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px));
}
.modal-header{
  border-bottom:1px solid var(--line-dark);
  padding:22px 26px;
  align-items:flex-start;
  position:relative;
}
.modal-title{color:var(--white);font-size:19px;font-weight:800;}
.modal-sub{font-size:13.5px;color:rgba(255,255,255,.56);margin-top:6px;}
.modal-header .btn-close{
  position:absolute;
  right:18px;
  top:18px;
  width:36px;
  height:36px;
  border-radius:50%;
  background:transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='1.8' stroke-linecap='round'%3E%3Cpath d='M6 6l12 12M18 6L6 18'/%3E%3C/svg%3E") center/18px 18px no-repeat;
  border:1px solid var(--line-dark);
  opacity:.85;
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.modal-header .btn-close:hover{border-color:var(--neon-500);background-color:rgba(23,233,163,.12);opacity:1;}
.modal-body{padding:24px 26px 28px;}
.form-field{margin-bottom:18px;}
.form-field label{
  display:block;
  font-size:13.5px;
  font-weight:600;
  color:rgba(255,255,255,.78);
  margin-bottom:8px;
}
.form-control,.form-select{
  width:100%;
  height:48px;
  padding:0 14px;
  border-radius:10px;
  border:1px solid var(--line-dark);
  background:rgba(255,255,255,.05);
  color:var(--white);
  font-size:14.5px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
textarea.form-control{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;min-height:104px;}
.form-control::placeholder{color:rgba(255,255,255,.38);}
.form-select option{color:var(--text-900);}
.form-control:focus,.form-select:focus{
  outline:none;
  border-color:var(--neon-500);
  box-shadow:0 0 0 3px rgba(23,233,163,.18);
  background:rgba(255,255,255,.07);
  color:var(--white);
}
.form-check{display:flex;gap:10px;align-items:flex-start;margin-bottom:18px;}
.form-check input{
  width:18px;
  height:18px;
  margin-top:3px;
  accent-color:var(--neon-500);
  flex:0 0 18px;
}
.form-check label{font-size:13px;color:rgba(255,255,255,.6);line-height:1.7;}
.form-note{font-size:13px;color:rgba(255,255,255,.48);margin-top:12px;line-height:1.7;}
.form-success{text-align:center;padding:26px 8px 10px;}
.form-success .ok-mark{
  width:56px;
  height:56px;
  margin:0 auto 18px;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:var(--neon-soft);
  border:1px solid rgba(23,233,163,.5);
  color:var(--neon-500);
}
.form-success h4{color:var(--white);font-size:18px;margin-bottom:10px;}
.form-success p{font-size:14.5px;color:rgba(255,255,255,.7);line-height:1.8;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .grid-3{gap:20px;}
}
@media (max-width:991.98px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:minmax(0,1fr);gap:32px;}
  .split-media img{aspect-ratio:16/10;}
  .check-layout{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
  .cta-card{padding:36px 30px;clip-path:none;border-radius:var(--radius-card);}
}
@media (max-width:767.98px){
  .search-box{display:none;}
  .search-toggle{display:inline-flex;}
  .nav-toggle{display:inline-flex;}
  .brand-actions .btn-coral{display:none;}
  .banner-inner{padding:44px 0 48px;}
  .page-banner{min-height:auto;}
  .grid-3{grid-template-columns:minmax(0,1fr);}
  .check-list{grid-template-columns:minmax(0,1fr);}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .modal-dialog{
    margin:0;
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    max-width:100%;
  }
  .modal-content{border-radius:18px 18px 0 0;clip-path:none;}
  .modal-dialog-scrollable .modal-content{max-height:92vh;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;text-align:center;}
}
@media (max-width:520px){
  .container-xl{padding-left:16px;padding-right:16px;}
  .logo-text{font-size:15.5px;}
  .media-body h3{font-size:18px;}
  .step-list li{padding-left:48px;}
  .step-list li::before{width:34px;height:34px;font-size:12px;}
  .step-list li::after{left:16px;top:40px;}
  .cta-card{padding:28px 22px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    transition:none !important;
    animation:none !important;
  }
}

/* roulang page: category3 */
:root{
  --ink-950:#0B0E13;
  --ink-900:#101419;
  --ink-800:#181D25;
  --ink-700:#232A35;
  --line-dark:rgba(255,255,255,.08);
  --grid-line:rgba(255,255,255,.045);
  --neon-500:#17E9A3;
  --neon-600:#0FC98A;
  --neon-soft:rgba(23,233,163,.12);
  --coral-500:#FF6A3D;
  --coral-600:#E8552A;
  --mist-50:#F6F7F9;
  --mist-100:#EDEFF3;
  --white:#FFFFFF;
  --text-900:#14171C;
  --text-600:#565E6B;
  --text-400:#8A929E;
  --border:#E4E7EC;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  --sh-1:0 1px 2px rgba(11,14,19,.05),0 6px 18px rgba(11,14,19,.06);
  --sh-2:0 12px 32px rgba(11,14,19,.12);
  --ease:cubic-bezier(.22,.7,.3,1);
  --dur:.22s;
  --sp-section:clamp(3.5rem,2rem + 5vw,6.5rem);
  --bs-primary:#17E9A3;
  --bs-body-color:#14171C;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E4E7EC;
  --bs-link-color:#0FC98A;
  --bs-link-hover-color:#17E9A3;
  --bs-font-sans-serif:var(--font-sans);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1400px){.container-xl{max-width:1240px}}
@media (max-width:575px){.container-xl{padding-left:16px;padding-right:16px}}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(11,14,19,.94);
  border-bottom:1px solid var(--line-dark);
  backdrop-filter:blur(10px);
  transition:background var(--dur) var(--ease);
}
.brand-bar{height:64px;transition:height var(--dur) var(--ease)}
.site-header.is-scrolled .brand-bar{height:56px}
.brand-inner{display:flex;align-items:center;gap:16px;height:100%}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--neon-500),var(--neon-600));
  color:var(--ink-950);font-weight:800;font-size:17px;
}
.logo-text{color:#fff;font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--neon-500)}
.brand-search{
  margin-left:auto;flex:1;max-width:320px;height:40px;
  display:flex;align-items:center;gap:8px;padding:0 16px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:999px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.brand-search:focus-within{border-color:var(--neon-500);box-shadow:0 0 0 6px rgba(23,233,163,.14)}
.brand-search svg{color:var(--text-400);flex-shrink:0}
.brand-search input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  color:#fff;font-size:14px;
}
.brand-search input::placeholder{color:var(--text-400)}
.brand-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
}
.nav-toggle svg{color:#fff}
.nav-toggle:hover{background:rgba(23,233,163,.14);border-color:rgba(23,233,163,.4)}
.channel-bar{
  border-top:1px solid var(--line-dark);
  background:var(--ink-900);
  position:relative;
}
.channel-inner{
  display:flex;align-items:center;gap:6px;height:48px;
  overflow-x:auto;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;flex:0 0 auto;
  padding:8px 14px;border-radius:10px;
  font-size:15px;color:rgba(255,255,255,.74);
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.channel-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.channel-link.active{
  color:var(--neon-500);
  background:var(--neon-soft);
  box-shadow:inset 0 -2px 0 var(--neon-500);
}

/* ---------- Buttons ---------- */
.btn{
  --bs-btn-focus-box-shadow:none;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:10px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn:active{transform:translateY(0)}
.btn-primary{
  background:var(--coral-500);color:var(--ink-950);
}
.btn-primary:hover{
  background:var(--coral-600);color:var(--ink-950);
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(255,106,61,.32);
}
.btn-neon{background:var(--neon-500);color:var(--ink-950)}
.btn-neon:hover{
  background:#22ffb2;color:var(--ink-950);
  transform:translateY(-1px);
  box-shadow:0 8px 22px rgba(23,233,163,.3);
}
.btn-outline-neon{
  background:transparent;color:var(--neon-500);
  border-color:rgba(23,233,163,.55);
}
.btn-outline-neon:hover{
  background:var(--neon-soft);
  border-color:var(--neon-500);
  color:#0a5f45;
}
.btn-outline-ink{
  background:transparent;color:var(--text-900);
  border-color:var(--border);
}
.btn-outline-ink:hover{border-color:rgba(23,233,163,.6);color:var(--text-900);background:var(--mist-50)}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--neon-600);font-size:14px;font-weight:600;
}
.link-arrow svg{transition:transform var(--dur) var(--ease)}
.link-arrow:hover{color:var(--neon-500);text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--ink-950) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:clamp(40px,5vw,72px) 0 clamp(48px,5.5vw,84px);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(11,14,19,.95) 0%,rgba(11,14,19,.86) 48%,rgba(11,14,19,.7) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 78% 22%,#000 0%,transparent 62%);
}
.hero-glow{
  position:absolute;top:-140px;right:-100px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,233,163,.16),transparent 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.crumb-dark{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:rgba(255,255,255,.6);margin-bottom:28px;
}
.crumb-dark a{color:rgba(255,255,255,.8)}
.crumb-dark a:hover{color:var(--neon-500)}
.crumb-dark .sep{color:rgba(255,255,255,.3)}
.crumb-dark .current{color:var(--neon-500)}
.hero-grid{
  display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--neon-soft);border:1px solid rgba(23,233,163,.34);
  color:var(--neon-500);font-size:13px;font-weight:600;letter-spacing:.06em;
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(2rem,1.2rem + 2.6vw,3.25rem);
  line-height:1.28;font-weight:800;color:#fff;letter-spacing:.01em;
}
.hero h1 .hl{color:var(--neon-500)}
.hero-sub{
  margin-top:20px;max-width:560px;
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.76);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.9);font-size:13px;font-weight:500;
}
.hero-tag svg{color:var(--neon-500);flex-shrink:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-visual{
  position:relative;border-radius:14px;overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 24px 60px rgba(0,0,0,.5);
  aspect-ratio:16/10;background:var(--ink-800);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,14,19,.7),transparent 58%);
}
.hero-float{
  position:absolute;left:-24px;bottom:-28px;z-index:3;
  min-width:236px;padding:18px 20px;
  background:rgba(24,29,37,.96);
  border:1px solid rgba(23,233,163,.34);
  border-radius:14px;
  box-shadow:0 18px 40px rgba(0,0,0,.45);
  clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,16px 100%,0 calc(100% - 16px));
}
.hero-float .fl-label{font-size:13px;color:var(--text-400);letter-spacing:.06em}
.hero-float .fl-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:32px;font-weight:700;color:var(--neon-500);line-height:1.25;margin-top:4px;
}
.hero-float .fl-num small{font-size:14px;color:rgba(255,255,255,.6);margin-left:4px;font-family:var(--font-sans)}
.hero-float .fl-note{font-size:13px;color:rgba(255,255,255,.6);margin-top:2px}

/* ---------- Sections ---------- */
.section{padding:var(--sp-section) 0}
.section-mist{background:var(--mist-50)}
.section-head{max-width:760px;margin-bottom:44px}
.section-label{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;
  text-transform:uppercase;color:var(--neon-600);margin-bottom:12px;
}
.section-title{
  font-size:clamp(1.5rem,1.1rem + 1.4vw,2.125rem);
  line-height:1.32;font-weight:800;color:var(--text-900);letter-spacing:.01em;
}
.section-sub{margin-top:14px;font-size:16px;line-height:1.8;color:var(--text-600)}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- Timeline ---------- */
.timeline{position:relative;max-width:1020px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;top:8px;bottom:60px;left:50%;width:2px;
  transform:translateX(-1px);
  background:linear-gradient(to bottom,rgba(23,233,163,.5),rgba(23,233,163,.14));
}
.tl-item{position:relative}
.tl-body{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:14px;
  padding:26px 28px;
  box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.tl-body:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:rgba(23,233,163,.45);
}
.tl-body h3{font-size:20px;font-weight:700;line-height:1.45;margin-bottom:10px}
.tl-body p{font-size:15px;line-height:1.85;color:var(--text-600)}
.tl-body img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:12px;margin-top:18px;background:var(--mist-100);
}
.tl-meta{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  padding:5px 12px;border-radius:999px;
  background:var(--neon-soft);color:#0a6d4f;
  font-size:12px;font-weight:600;
}
.tl-marker{
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--white);
  border:2px solid var(--neon-500);
  color:var(--text-900);
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-weight:700;font-size:14px;
  box-shadow:0 0 0 7px var(--mist-50);
  position:relative;z-index:2;
}
.tl-item.is-active .tl-marker{background:var(--neon-500);color:var(--ink-950)}
@media (min-width:992px){
  .tl-item{
    display:grid;grid-template-columns:1fr 92px 1fr;
    align-items:start;padding-bottom:40px;
  }
  .tl-item:last-child{padding-bottom:0}
  .tl-marker{grid-column:2;grid-row:1;justify-self:center;margin-top:22px}
  .tl-item:nth-child(odd) .tl-body{grid-column:1;grid-row:1;margin-right:8px}
  .tl-item:nth-child(even) .tl-body{grid-column:3;grid-row:1;margin-left:8px}
}
@media (max-width:991px){
  .timeline::before{left:23px;bottom:30px}
  .tl-item{padding-left:70px;padding-bottom:28px}
  .tl-item:last-child{padding-bottom:0}
  .tl-marker{position:absolute;left:0;top:0}
}

/* ---------- Type grid ---------- */
.type-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.type-card{
  position:relative;background:var(--white);
  border:1px solid var(--border);border-radius:14px;
  padding:30px 28px 28px;
  box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.type-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,233,163,.45)}
.type-card .watermark{
  position:absolute;top:16px;right:22px;
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:48px;font-weight:700;color:rgba(20,23,28,.06);line-height:1;
  pointer-events:none;
}
.type-icon{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--neon-soft);color:var(--neon-600);
  border:1px solid rgba(23,233,163,.28);
  margin-bottom:18px;
}
.type-card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.type-card p{font-size:15px;line-height:1.8;color:var(--text-600)}
.type-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag-pill{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;
  background:var(--neon-soft);color:#0a6d4f;
  font-size:12px;font-weight:600;
}

/* ---------- Stats band ---------- */
.stats-band{
  background:var(--ink-900);
  padding:var(--sp-section) 0;
  position:relative;overflow:hidden;
}
.stats-band::after{
  content:"";position:absolute;top:-160px;left:-120px;width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,233,163,.12),transparent 68%);
  pointer-events:none;
}
.stats-band .section-title{color:#fff}
.stats-band .section-sub{color:rgba(255,255,255,.62)}
.stats-band .section-label{color:var(--neon-500)}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  position:relative;z-index:2;
}
.stat-card{
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-dark);
  border-radius:14px;
  padding:26px 24px;
  clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,16px 100%,0 calc(100% - 16px));
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.stat-card:hover{border-color:rgba(23,233,163,.42);background:rgba(23,233,163,.05)}
.stat-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(1.75rem,1.2rem + 1.6vw,2.75rem);
  font-weight:700;color:var(--neon-500);line-height:1.15;
}
.stat-num small{font-size:14px;font-family:var(--font-sans);color:rgba(255,255,255,.62);margin-left:4px;font-weight:500}
.stat-label{font-size:15px;font-weight:600;color:#fff;margin-top:12px}
.stat-note{font-size:13px;color:rgba(255,255,255,.5);margin-top:4px}

/* ---------- Split / pitfalls ---------- */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:start}
.pit-list{display:grid;gap:14px}
.pit-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--white);border:1px solid var(--border);
  border-radius:14px;padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.pit-item:hover{transform:translateY(-3px);border-color:rgba(255,106,61,.42);box-shadow:var(--sh-2)}
.pit-ico{
  flex:0 0 40px;width:40px;height:40px;border-radius:10px;
  display:grid;place-items:center;
  background:rgba(255,106,61,.1);color:var(--coral-600);
  border:1px solid rgba(255,106,61,.26);
}
.pit-item h4{font-size:16px;font-weight:700;margin-bottom:6px}
.pit-item p{font-size:14px;line-height:1.78;color:var(--text-600)}
.side-note{
  background:var(--white);border:1px solid var(--border);
  border-radius:14px;padding:28px;box-shadow:var(--sh-1);
}
.side-note h3{font-size:19px;font-weight:700;margin-bottom:14px}
.side-note p{font-size:15px;line-height:1.85;color:var(--text-600);margin-bottom:14px}
.side-note ul{margin-top:18px;display:grid;gap:12px}
.side-note li{display:flex;gap:10px;font-size:14px;color:var(--text-600);line-height:1.75}
.side-note li svg{color:var(--neon-600);flex-shrink:0;margin-top:3px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion-item{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-item:hover{border-color:rgba(23,233,163,.45)}
.accordion-button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  font-size:17px;font-weight:700;color:var(--text-900);text-align:left;
  background:var(--white);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.accordion-button::after{
  content:"";flex:0 0 22px;width:22px;height:22px;border-radius:6px;
  background-color:transparent;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='22' viewBox='0 0 24 24' fill='none' stroke='%230FC98A' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;
  transition:transform var(--dur) var(--ease);
}
.accordion-button[aria-expanded="true"]{color:#0a6d4f;background:rgba(23,233,163,.06)}
.accordion-button[aria-expanded="true"]::after{transform:rotate(45deg)}
.accordion-button:not(.collapsed){box-shadow:none}
.accordion-panel{
  display:none;padding:0 24px 22px;
  font-size:15px;line-height:1.85;color:var(--text-600);
  border-left:3px solid var(--neon-500);
  margin-left:0;
}
.accordion-item.is-open{border-color:rgba(23,233,163,.55);box-shadow:var(--sh-1)}
.accordion-item.is-open .accordion-panel{display:block}

/* ---------- CTA band ---------- */
.cta-section{background:var(--mist-50);padding:var(--sp-section) 0}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--ink-900);
  border:1px solid rgba(23,233,163,.34);
  border-radius:16px;
  padding:clamp(36px,4vw,60px);
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,22px 100%,0 calc(100% - 22px));
}
.cta-card::after{
  content:"";position:absolute;top:-120px;right:-80px;width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,233,163,.14),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.cta-inner h2{font-size:clamp(1.4rem,1.1rem + 1.1vw,1.9rem);font-weight:800;color:#fff;line-height:1.35}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.7)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px}
.cta-points span{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:rgba(255,255,255,.72)}
.cta-points svg{color:var(--neon-500)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-950);padding:64px 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-col h4{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;
  padding-bottom:10px;position:relative;
}
.footer-col h4::after{
  content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;background:var(--neon-500);border-radius:2px;
}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6)}
.footer-col ul{display:grid;gap:11px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col ul a:hover{color:var(--neon-500)}
.footer-contact li{display:flex;gap:10px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.6)}
.footer-contact svg{color:var(--neon-500);flex-shrink:0;margin-top:3px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-dark);
  padding:20px 0 26px;
  font-size:13px;color:rgba(255,255,255,.46);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--neon-500)}
.footer-bottom .sep{margin:0 10px;color:rgba(255,255,255,.22)}

/* ---------- Modal ---------- */
.modal-content{
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px;
  color:#fff;
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px));
}
.modal-header{border-bottom:1px solid var(--line-dark);padding:22px 26px}
.modal-title{font-size:18px;font-weight:700;color:#fff}
.modal-body{padding:24px 26px 28px}
.modal-backdrop.show{opacity:.66;background:var(--ink-950)}
.btn-close{
  --bs-btn-close-color:#fff;
  width:36px;height:36px;border-radius:50%;
  background-color:rgba(255,255,255,.08);
  background-size:12px;
  opacity:.85;
  transition:background-color var(--dur) var(--ease);
}
.btn-close:hover{background-color:rgba(23,233,163,.3);opacity:1}
.form-label{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:8px}
.form-control,.form-select{
  height:48px;background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);border-radius:10px;
  color:#fff;font-size:15px;padding:0 14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.form-control::placeholder{color:var(--text-400)}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.07);
  border-color:var(--neon-500);
  box-shadow:0 0 0 4px rgba(23,233,163,.18);
  color:#fff;outline:none;
}
textarea.form-control{height:auto;padding:12px 14px;line-height:1.7;resize:vertical}
.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238A929E' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.form-select option{background:var(--ink-800);color:#fff}
.form-check-input{background-color:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22)}
.form-check-input:checked{background-color:var(--neon-500);border-color:var(--neon-500)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(23,233,163,.22);border-color:var(--neon-500)}
.form-check-label{font-size:13px;color:rgba(255,255,255,.6);line-height:1.7}
.form-hint{font-size:13px;color:rgba(255,255,255,.45);margin-top:12px;line-height:1.7}
.form-success{text-align:center;padding:26px 0}
.form-success .ok-ico{
  width:56px;height:56px;border-radius:50%;margin:0 auto 18px;
  display:grid;place-items:center;
  background:rgba(23,233,163,.14);border:1px solid rgba(23,233,163,.4);color:var(--neon-500);
}
.form-success h4{font-size:18px;font-weight:700;color:#fff;margin-bottom:8px}
.form-success p{font-size:14px;color:rgba(255,255,255,.62);line-height:1.8}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:360px;
  background:var(--ink-900);border-left:1px solid var(--line-dark);
  z-index:1055;transform:translateX(100%);
  transition:transform .28s var(--ease);
  padding:24px 22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,14,19,.66);
  z-index:1050;opacity:0;visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.07);display:grid;place-items:center;border:1px solid rgba(255,255,255,.12)}
.drawer-close svg{color:#fff}
.drawer-nav{display:grid;gap:8px;margin-bottom:26px}
.drawer-nav a{
  display:block;padding:13px 16px;border-radius:10px;
  font-size:15px;color:rgba(255,255,255,.78);
  background:rgba(255,255,255,.04);border:1px solid transparent;
}
.drawer-nav a:hover{color:#fff;border-color:rgba(23,233,163,.35)}
.drawer-nav a.active{color:var(--neon-500);background:var(--neon-soft);border-color:rgba(23,233,163,.4)}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 16px;margin-bottom:22px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:999px}
.drawer-search input{flex:1;min-width:0;background:none;border:0;outline:none;color:#fff;font-size:14px}
.drawer-search svg{color:var(--text-400)}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-float{left:auto;right:16px;bottom:-24px}
  .split{grid-template-columns:1fr;gap:34px}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .brand-search{display:none}
  .nav-toggle{display:flex}
  .brand-actions .btn-cta{display:none}
  .hero{padding-top:32px}
  .hero-visual{margin-bottom:34px}
  .hero-float{position:static;width:100%;margin-top:16px;clip-path:none;border-radius:14px}
  .type-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .tl-item{padding-left:62px}
  .tl-body{padding:22px 20px}
  .stat-card{padding:22px 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
}

/* roulang page: category4 */
:root{
  --ink-950:#0B0E13;--ink-900:#101419;--ink-800:#181D25;--ink-700:#232A35;
  --line-dark:rgba(255,255,255,.08);--grid-dark:rgba(255,255,255,.045);
  --neon-500:#17E9A3;--neon-600:#0FC98A;--neon-soft:rgba(23,233,163,.12);
  --coral-500:#FF6A3D;--coral-600:#E8552A;
  --mist-50:#F6F7F9;--mist-100:#EDEFF3;--white:#FFFFFF;
  --text-900:#14171C;--text-600:#565E6B;--text-400:#8A929E;--border:#E4E7EC;
  --r-card:14px;--r-img:12px;--r-btn:10px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(11,14,19,.05),0 6px 18px rgba(11,14,19,.06);
  --sh-2:0 12px 32px rgba(11,14,19,.12);
  --ease:cubic-bezier(.22,.7,.3,1);--dur:.22s;
  --sp-section:clamp(3.5rem,2rem + 5vw,6.5rem);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  --bs-primary:#17E9A3;--bs-body-color:#14171C;--bs-body-bg:#FFFFFF;
  --bs-border-color:#E4E7EC;--bs-link-color:#0FC98A;--bs-link-hover-color:#17E9A3;
  --bs-font-sans-serif:var(--font-sans);
  --bs-gutter-x:1.5rem;--bs-gutter-y:1.5rem;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.75;color:var(--text-900);
  background:var(--white);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--neon-600);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--neon-500)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1400px){.container-xl{max-width:1240px}}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1040}
.brand-bar{background:rgba(11,14,19,.94);border-bottom:1px solid var(--line-dark);transition:padding var(--dur) var(--ease)}
.brand-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height var(--dur) var(--ease)}
.site-header.scrolled .brand-inner{height:56px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--neon-500),var(--neon-600));color:var(--ink-950);
  font-weight:800;font-size:17px;
}
.logo-text{color:#fff;font-size:17px;font-weight:800;letter-spacing:.01em}
.logo-text em{font-style:normal;color:var(--neon-500)}
.site-search{position:relative;flex:1 1 auto;max-width:320px;display:flex;align-items:center}
.site-search svg{position:absolute;left:14px;color:var(--text-400);pointer-events:none}
.site-search input{
  width:100%;height:40px;border-radius:var(--r-pill);border:1px solid var(--line-dark);
  background:rgba(255,255,255,.06);color:#fff;padding:0 16px 0 40px;font-size:14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-search input::placeholder{color:rgba(255,255,255,.42)}
.site-search input:focus{outline:none;border-color:var(--neon-500);box-shadow:0 0 0 4px rgba(23,233,163,.18);background:rgba(255,255,255,.09)}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-dark);
  background:transparent;color:#fff;place-items:center;cursor:pointer;
}
.channel-bar{background:var(--ink-950);border-bottom:1px solid var(--line-dark)}
.channel-inner{
  display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
  mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  flex:0 0 auto;padding:0 14px;height:34px;display:inline-flex;align-items:center;
  border-radius:var(--r-pill);font-size:14px;color:rgba(255,255,255,.72);white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.channel-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.channel-link.active{color:var(--neon-500);background:var(--neon-soft);font-weight:700}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--r-btn);font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.btn:active{transform:translateY(0)}
.btn-coral{background:var(--coral-500);color:var(--ink-950)}
.btn-coral:hover{background:var(--coral-600);color:var(--ink-950);transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,106,61,.32)}
.btn-neon{background:var(--neon-500);color:var(--ink-950)}
.btn-neon:hover{background:var(--neon-600);color:var(--ink-950);transform:translateY(-1px);box-shadow:0 8px 22px rgba(23,233,163,.3)}
.btn-outline-neon{background:transparent;border-color:var(--neon-500);color:var(--neon-500)}
.btn-outline-neon:hover{background:var(--neon-soft);color:var(--neon-500);border-color:var(--neon-600)}
.btn-outline-dark{background:transparent;border-color:var(--border);color:var(--text-900)}
.btn-outline-dark:hover{border-color:var(--neon-500);color:var(--text-900);background:var(--neon-soft)}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--neon-600);font-weight:600;font-size:14px}
.link-arrow svg{transition:transform var(--dur) var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--mist-50);border-bottom:1px solid var(--border)}
.crumb{display:flex;align-items:center;gap:8px;height:52px;font-size:14px;color:var(--text-400);overflow:hidden;white-space:nowrap}
.crumb a{color:var(--text-600)}
.crumb a:hover{color:var(--neon-600)}
.crumb .sep{color:var(--text-400)}
.crumb .cur{color:var(--text-900);font-weight:600}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--ink-950);color:#fff;overflow:hidden;padding:clamp(48px,5vw,76px) 0}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;opacity:.7;
}
.hero::after{
  content:"";position:absolute;top:-140px;right:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,233,163,.16),transparent 68%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(23,233,163,.35);color:var(--neon-500);font-size:13px;font-weight:600;
  letter-spacing:.06em;margin-bottom:18px;background:var(--neon-soft);
}
.hero h1{font-size:clamp(2rem,1.2rem + 2.6vw,3.25rem);color:#fff;margin-bottom:16px}
.hero h1 span{color:var(--neon-500)}
.hero-sub{font-size:17px;color:rgba(255,255,255,.72);max-width:620px;margin-bottom:22px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.fact-chip{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--line-dark);background:rgba(255,255,255,.05);font-size:13px;color:rgba(255,255,255,.86);
}
.fact-chip svg{color:var(--neon-500)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-panel{
  position:relative;background:var(--ink-800);border:1px solid var(--line-dark);
  border-radius:var(--r-card);padding:22px;
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.hero-panel img{border-radius:var(--r-img);aspect-ratio:16/10;object-fit:cover;background:var(--ink-700);margin-bottom:16px}
.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;border-top:1px solid var(--line-dark);padding-top:16px}
.hero-metrics .m-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:26px;font-weight:800;color:var(--neon-500);line-height:1.1}
.hero-metrics .m-num small{font-size:13px;font-weight:600;color:rgba(255,255,255,.6);margin-left:2px}
.hero-metrics .m-lab{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:4px;line-height:1.5}

/* ---------- sections ---------- */
.sec{padding:var(--sp-section) 0}
.sec-mist{background:var(--mist-50)}
.sec-dark{background:var(--ink-900);color:#fff}
.sec-head{max-width:760px;margin-bottom:38px}
.sec-tag{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--neon-600);margin-bottom:10px}
.sec-title{font-size:clamp(1.5rem,1.1rem + 1.4vw,2.125rem);margin-bottom:12px}
.sec-sub{font-size:15.5px;color:var(--text-600);line-height:1.8}
.sec-dark .sec-title{color:#fff}
.sec-dark .sec-sub{color:rgba(255,255,255,.66)}
.sec-dark .sec-tag{color:var(--neon-500)}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.sec-head-row .sec-head{margin-bottom:0}

/* ---------- compare table ---------- */
.cmp-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
.table-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.cmp-table{width:100%;border-collapse:collapse;font-size:15px}
.cmp-table thead th{
  background:var(--neon-soft);color:var(--text-900);font-weight:700;font-size:14px;text-align:left;
  padding:14px 18px;border-bottom:1px solid rgba(23,233,163,.3);white-space:nowrap;
}
.cmp-table td{padding:15px 18px;border-bottom:1px solid var(--border);color:var(--text-600);vertical-align:top}
.cmp-table tbody tr:nth-child(even){background:var(--mist-50)}
.cmp-table tbody tr:last-child td{border-bottom:none}
.cmp-table td:first-child{color:var(--text-900);font-weight:600;width:22%}
.cmp-table td strong{color:var(--text-900);font-weight:700}
.table-note{font-size:13px;color:var(--text-400);padding:14px 18px;background:var(--mist-100);border-top:1px solid var(--border)}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:22px;margin-bottom:20px;
}
.side-card img{border-radius:var(--r-img);aspect-ratio:4/3;object-fit:cover;background:var(--mist-100);margin-bottom:16px}
.side-card h3{font-size:17px;margin-bottom:10px}
.side-card p{font-size:14.5px;color:var(--text-600)}
.side-list{margin-top:14px;display:grid;gap:10px}
.side-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-600);line-height:1.7}
.side-list svg{flex:0 0 auto;margin-top:5px;color:var(--neon-600)}

/* ---------- tiles ---------- */
.tile-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:24px}
.tile{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:26px;display:flex;flex-direction:column;gap:14px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.tile:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,233,163,.45)}
.tile.big{padding:0;overflow:hidden}
.tile.big img{aspect-ratio:16/9;object-fit:cover;background:var(--mist-100)}
.tile.big .tile-body{padding:26px;display:flex;flex-direction:column;gap:14px}
.tile h3{font-size:20px;line-height:1.45}
.tile p{font-size:15px;color:var(--text-600)}
.tile-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--neon-soft);color:var(--neon-600);flex:0 0 auto;
}
.tile-stack{display:grid;gap:24px}
.tile-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-400)}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--neon-soft);color:var(--neon-600);font-size:12.5px;font-weight:600;
}
.step-no{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--text-400);letter-spacing:.08em}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  background:#fff;border:1px solid var(--border)!important;border-radius:12px!important;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion-button{
  background:#fff!important;color:var(--text-900)!important;font-weight:700;font-size:16.5px;
  padding:20px 56px 20px 22px;box-shadow:none!important;border-left:3px solid transparent;
}
.accordion-button:not(.collapsed){color:var(--text-900)!important;border-left-color:var(--neon-500);background:#fff!important}
.accordion-button::after{display:none}
.accordion-button .faq-sign{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);width:24px;height:24px;
  display:grid;place-items:center;color:var(--neon-600);transition:transform var(--dur) var(--ease);
}
.accordion-button:not(.collapsed) .faq-sign{transform:translateY(-50%) rotate(45deg)}
.accordion-body{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text-600);border-left:3px solid var(--neon-500)}

/* ---------- form ---------- */
.form-card{
  background:var(--ink-800);border:1px solid var(--line-dark);border-radius:18px;padding:clamp(24px,3vw,40px);color:#fff;
  box-shadow:0 24px 60px rgba(0,0,0,.35);
}
.form-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:8px;font-weight:600}
.form-control,.form-select{
  width:100%;height:48px;border-radius:10px;border:1px solid var(--line-dark);
  background:rgba(255,255,255,.05);color:#fff;padding:0 14px;font-size:15px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
textarea.form-control{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-control::placeholder{color:rgba(255,255,255,.38)}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--neon-500);box-shadow:0 0 0 3px rgba(23,233,163,.2);background:rgba(255,255,255,.08);
}
.form-select option{color:var(--text-900);background:#fff}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:rgba(255,255,255,.6);margin:6px 0 18px}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--neon-500);flex:0 0 auto}
.trust-list{display:grid;gap:20px}
.trust-item{display:flex;gap:14px}
.trust-item svg{flex:0 0 auto;margin-top:4px;color:var(--neon-500)}
.trust-item h4{font-size:16px;margin-bottom:6px;color:#fff}
.trust-item p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.75}
.form-ok{display:none;text-align:center;padding:34px 12px}
.form-ok.show{display:block}
.form-ok .ok-icon{
  width:54px;height:54px;border-radius:50%;background:var(--neon-soft);color:var(--neon-500);
  display:grid;place-items:center;margin:0 auto 16px;
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;border-radius:18px;overflow:hidden;border:1px solid rgba(23,233,163,.35);
  background-image:linear-gradient(rgba(11,14,19,.86),rgba(11,14,19,.92)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;padding:clamp(30px,4vw,54px);
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px));
}
.cta-band-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.4rem,1.05rem + 1vw,1.9rem);color:#fff;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.7);font-size:15px;max-width:560px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.68);padding:clamp(48px,5vw,72px) 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--neon-500);border-radius:2px}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col ul li a{color:rgba(255,255,255,.68)}
.footer-col ul li a:hover{color:var(--neon-500)}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.55);margin-top:16px;max-width:320px}
.footer-contact li{display:flex;gap:10px;line-height:1.7}
.footer-contact svg{flex:0 0 auto;margin-top:4px;color:var(--neon-500)}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line-dark);padding:20px 0;font-size:13px;color:rgba(255,255,255,.45);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--neon-500)}
.footer-bottom .sep{margin:0 8px;color:rgba(255,255,255,.25)}

/* ---------- modal ---------- */
.modal-backdrop.show{opacity:.66}
.modal-content{
  background:var(--ink-800);border:1px solid var(--line-dark);border-radius:18px;color:#fff;
  box-shadow:0 30px 70px rgba(0,0,0,.5);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.modal-content .form-control,.modal-content .form-select{background:rgba(255,255,255,.05)}
.modal-header{border-bottom:1px solid var(--line-dark);padding:22px 26px}
.modal-title{font-size:19px;font-weight:800;color:#fff}
.modal-body{padding:22px 26px}
.modal-footer{border-top:1px solid var(--line-dark);padding:18px 26px}
.modal .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.modal .btn-close:hover{opacity:1}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,14,19,.66);opacity:0;visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);z-index:1060;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;width:86%;max-width:340px;height:100%;background:var(--ink-900);
  z-index:1070;transform:translateX(100%);transition:transform var(--dur) var(--ease);
  padding:24px 20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line-dark);background:transparent;color:#fff;cursor:pointer}
.drawer a.d-item{display:block;padding:13px 14px;border-radius:10px;color:rgba(255,255,255,.78);font-size:15px;margin-bottom:6px}
.drawer a.d-item:hover{background:rgba(255,255,255,.06);color:#fff}
.drawer a.d-item.active{background:var(--neon-soft);color:var(--neon-500);font-weight:700}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .cmp-grid{grid-template-columns:1fr}
}
@media (max-width:991px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .tile-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  .site-search{display:none}
  .menu-toggle{display:grid}
  .brand-actions .btn-coral{display:none}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:12px}
  .hero-metrics{grid-template-columns:1fr;gap:10px;text-align:left}
  .hero-metrics .m-num{font-size:22px}
  .cmp-table thead{display:none}
  .cmp-table,.cmp-table tbody,.cmp-table tr,.cmp-table td{display:block;width:100%}
  .cmp-table tr{border-bottom:1px solid var(--border);padding:6px 0}
  .cmp-table tbody tr:nth-child(even){background:var(--mist-50)}
  .cmp-table td{border-bottom:none;padding:8px 16px;font-size:14.5px}
  .cmp-table td:first-child{width:auto;padding-top:14px;font-size:15px}
  .cmp-table td[data-label]::before{
    content:attr(data-label);display:block;font-size:12.5px;color:var(--text-400);margin-bottom:2px;font-weight:600;
  }
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center;align-items:center}
  .cta-band-inner{flex-direction:column;align-items:flex-start}
  .modal-dialog{margin:0;position:fixed;bottom:0;left:0;right:0;max-width:100%}
  .modal-content{border-radius:18px 18px 0 0;clip-path:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .tile:hover{transform:none}
}